25 changed files with 2272 additions and 403 deletions
--- a/.gitignore
+++ b/.gitignore
@ -1 +1,7 @@
+SOURCES/06-2d-07
+SOURCES/06-4e-03
+SOURCES/06-55-04
+SOURCES/06-5e-03
+SOURCES/microcode-20190918.tar.gz
+SOURCES/microcode-20191115.tar.gz
 SOURCES/microcode-20240910.tar.gz
--- a/.microcode_ctl.metadata
+++ b/.microcode_ctl.metadata
@ -1 +1,7 @@
+bcf2173cd3dd499c37defbc2533703cfa6ec2430 SOURCES/06-2d-07
+06432a25053c823b0e2a6b8e84e2e2023ee3d43e SOURCES/06-4e-03
+2e405644a145de0f55517b6a9de118eec8ec1e5a SOURCES/06-55-04
+86c60ee7d5d0d7115a4962c1c61ceecb0fd3a95a SOURCES/06-5e-03
+bc20d6789e6614b9d9f88ee321ab82bed220f26f SOURCES/microcode-20190918.tar.gz
+774636f4d440623b0ee6a2dad65260e81208074d SOURCES/microcode-20191115.tar.gz
 2815182aa376dba6d534bc087a27fe9f27def1d2 SOURCES/microcode-20240910.tar.gz
--- a/SOURCES/06-2d-07_config
+++ b/SOURCES/06-2d-07_config
@ -0,0 +1,3 @@
+model GenuineIntel 06-2d-07
+path intel-ucode/06-2d-07
+dependency required intel
--- a/SOURCES/06-2d-07_disclaimer
+++ b/SOURCES/06-2d-07_disclaimer
@ -0,0 +1,4 @@
+MDS-related microcode update for Intel Sandy Bridge-EP (family 6, model 45,
+stepping 7; CPUID 0x206d7) CPUs is disabled.
+Please refer to /usr/share/doc/microcode_ctl/caveats/06-2d-07_readme
+and /usr/share/doc/microcode_ctl/README.caveats for details.
--- a/SOURCES/06-2d-07_readme
+++ b/SOURCES/06-2d-07_readme
@ -0,0 +1,58 @@
+Intel Sandy Bridge-E/EN/EP CPU models (SNB-EP, family 6, model 45, stepping 7)
+had issues with MDS-related microcode update that may lead to a system hang
+after a microcode update[1][2].  In order to address this, microcode update
+to the MDS-related revision 0x718 had been disabled, and the previously
+published microcode revision 0x714 is used by default for the OS-driven
+microcode update.  The revision 0x71a of the microcode is intended to fix
+the aforementioned issue, hence it is enabled by default (but can be disabled
+explicitly; see below).
+
+[1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/15
+[2] https://access.redhat.com/solutions/4593951
+
+For the reference, SHA1 checksums of 06-2d-07 microcode files containing
+microcode revisions in question are listed below:
+ * 06-2d-07, revision 0x714: bcf2173cd3dd499c37defbc2533703cfa6ec2430
+ * 06-2d-07, revision 0x718: 837cfebbfc09b911151dfd179082ad99cf87e85d
+ * 06-2d-07, revision 0x71a: 4512c8149e63e5ed15f45005d7fb5be0041f66f6
+
+Please contact your system vendor for a BIOS/firmware update that contains
+the latest microcode version.  For the information regarding microcode versions
+required for mitigating specific side-channel cache attacks, please refer
+to the following knowledge base articles:
+ * CVE-2017-5715 ("Spectre"):
+   https://access.redhat.com/articles/3436091
+ * CVE-2018-3639 ("Speculative Store Bypass"):
+   https://access.redhat.com/articles/3540901
+ * CVE-2018-3620, CVE-2018-3646 ("L1 Terminal Fault Attack"):
+   https://access.redhat.com/articles/3562741
+ * CVE-2018-12130, CVE-2018-12126, CVE-2018-12127, and CVE-2019-11091
+   ("Microarchitectural Data Sampling"):
+   https://access.redhat.com/articles/4138151
+
+The information regarding disabling microcode update is provided below.
+
+To disable usage of the newer microcode revision for a specific kernel
+version, please create file "disallow-intel-06-2d-07" inside
+/lib/firmware/<kernel_version> directory, run
+"/usr/libexec/microcode_ctl/update_ucode" to add it to firmware directory
+where microcode will be available for late microcode update, and run
+"dracut -f --kver <kernel_version>", so initramfs for this kernel version
+is regenerated and the microcode can be loaded early, for example:
+
+    touch /lib/firmware/3.10.0-862.9.1/disallow-intel-06-2d-07
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --kver 3.10.0-862.9.1
+
+To avoid addition of the newer microcode revision for all kernels, please create
+file "/etc/microcode_ctl/ucode_with_caveats/disallow-intel-06-2d-07", run
+"/usr/libexec/microcode_ctl/update_ucode" for late microcode updates,
+and "dracut -f --regenerate-all" for early microcode updates:
+
+    mkdir -p /etc/microcode_ctl/ucode_with_caveats
+    touch /etc/microcode_ctl/ucode_with_caveats/disallow-intel-06-2d-07
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --regenerate-all
+
+Please refer to /usr/share/doc/microcode_ctl/README.caveats for additional
+information.
--- a/SOURCES/06-4e-03_config
+++ b/SOURCES/06-4e-03_config
@ -0,0 +1,4 @@
+model GenuineIntel 06-4e-03
+path intel-ucode/06-4e-03
+dependency required intel
+disable early late
--- a/SOURCES/06-4e-03_disclaimer
+++ b/SOURCES/06-4e-03_disclaimer
@ -0,0 +1,5 @@
+Microcode revisions 0xda and higher for Intel Skylake-U/Y (family 6,
+model 78, stepping 3; CPUID 0x406e3) are disabled as they may cause system
+instability; the previously published revision 0xd6 is used instead.
+Please refer to /usr/share/doc/microcode_ctl/caveats/06-4e-03_readme
+and /usr/share/doc/microcode_ctl/README.caveats for details.
--- a/SOURCES/06-4e-03_readme
+++ b/SOURCES/06-4e-03_readme
@ -0,0 +1,90 @@
+Some Intel Skylake CPU models (SKL-U/Y, family 6, model 78, stepping 3)
+have reports of system hangs when revision 0xdc of microcode, that is included
+since microcode-20200609 update to address CVE-2020-0543, CVE-2020-0548,
+and CVE-2020-0549, is applied[1].  In order to address this, microcode update
+to the newer revision has been disabled by default on these systems,
+and the previously published microcode revision 0xd6 is used by default
+for the OS-driven microcode update.
+
+[1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/31
+
+For the reference, SHA1 checksums of 06-4e-03 microcode files containing
+microcode revisions in question are listed below:
+ * 06-4e-03, revision 0xd6: 06432a25053c823b0e2a6b8e84e2e2023ee3d43e
+ * 06-4e-03, revision 0xdc: cd1733458d187486999337ff8b51eeaa0cfbca6c
+ * 06-4e-03, revision 0xe2: 41f4513cf563605bc85db38056ac430dec948366
+ * 06-4e-03, revision 0xea: 5a54cab9f22f69b819d663e5747ed6ea2a326c55
+ * 06-4e-03, revision 0xec: d949a8543d2464d955f5dc4b0777cac863f48729
+ * 06-4e-03, revision 0xf0: 37475bac70457ba8df2c1a32bba81bd7bd27d5e8
+
+Please contact your system vendor for a BIOS/firmware update that contains
+the latest microcode version.  For the information regarding microcode versions
+required for mitigating specific side-channel cache attacks, please refer
+to the following knowledge base articles:
+ * CVE-2017-5715 ("Spectre"):
+   https://access.redhat.com/articles/3436091
+ * CVE-2018-3639 ("Speculative Store Bypass"):
+   https://access.redhat.com/articles/3540901
+ * CVE-2018-3620, CVE-2018-3646 ("L1 Terminal Fault Attack"):
+   https://access.redhat.com/articles/3562741
+ * CVE-2018-12130, CVE-2018-12126, CVE-2018-12127, and CVE-2019-11091
+   ("Microarchitectural Data Sampling"):
+   https://access.redhat.com/articles/4138151
+ * CVE-2019-0117 (Intel SGX Information Leak),
+   CVE-2019-0123 (Intel SGX Privilege Escalation),
+   CVE-2019-11135 (TSX Asynchronous Abort),
+   CVE-2019-11139 (Voltage Setting Modulation):
+   https://access.redhat.com/solutions/2019-microcode-nov
+ * CVE-2020-0543 (Special Register Buffer Data Sampling),
+   CVE-2020-0548 (Vector Register Data Sampling),
+   CVE-2020-0549 (L1D Cache Eviction Sampling):
+   https://access.redhat.com/solutions/5142751
+ * CVE-2020-8695 (Information disclosure issue in Intel SGX via RAPL interface),
+   CVE-2020-8696 (Vector Register Leakage-Active),
+   CVE-2020-8698 (Fast Forward Store Predictor):
+   https://access.redhat.com/articles/5569051
+ * CVE-2020-24489 (VT-d-related Privilege Escalation),
+   CVE-2020-24511 (Improper Isolation of Shared Resources),
+   CVE-2020-24512 (Observable Timing Discrepancy),
+   CVE-2020-24513 (Information Disclosure on Some Intel Atom Processors):
+   https://access.redhat.com/articles/6101171
+ * CVE-2021-0127 (Intel Processor Breakpoint Control Flow):
+   https://access.redhat.com/articles/6716541
+ * CVE-2022-0005 (Informational disclosure via JTAG),
+   CVE-2022-21123 (Shared Buffers Data Read),
+   CVE-2022-21125 (Shared Buffers Data Sampling),
+   CVE-2022-21127 (Update to Special Register Buffer Data Sampling),
+   CVE-2022-21151 (Optimization Removal-Induced Informational Disclosure),
+   CVE-2022-21166 (Device Register Partial Write):
+   https://access.redhat.com/articles/6963124
+
+The information regarding enforcing microcode update is provided below.
+
+To enforce usage of the latest 06-4e-03 microcode revision for a specific kernel
+version, please create a file "force-intel-06-4e-03" inside
+/lib/firmware/<kernel_version> directory, run
+"/usr/libexec/microcode_ctl/update_ucode" to add it to firmware directory
+where microcode will be available for late microcode update, and run
+"dracut -f --kver <kernel_version>", so initramfs for this kernel version
+is regenerated and the microcode can be loaded early, for example:
+
+    touch /lib/firmware/3.10.0-862.9.1/force-intel-06-4e-03
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --kver 3.10.0-862.9.1
+
+After that, it is possible to perform a late microcode update by executing
+"/usr/libexec/microcode_ctl/reload_microcode" or by writing value "1" to
+"/sys/devices/system/cpu/microcode/reload" directly.
+
+To enforce addition of this microcode for all kernels, please create file
+"/etc/microcode_ctl/ucode_with_caveats/force-intel-06-4e-03", run
+"/usr/libexec/microcode_ctl/update_ucode" for enabling late microcode updates,
+and "dracut -f --regenerate-all" for enabling early microcode updates:
+
+    mkdir -p /etc/microcode_ctl/ucode_with_caveats
+    touch /etc/microcode_ctl/ucode_with_caveats/force-intel-06-4e-03
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --regenerate-all
+
+Please refer to /usr/share/doc/microcode_ctl/README.caveats for additional
+information.
--- a/SOURCES/06-55-04_config
+++ b/SOURCES/06-55-04_config
@ -0,0 +1,12 @@
+model GenuineIntel 06-55-04
+path intel-ucode/06-55-04
+## Bug https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/21
+## affects only SKX-W/X (Workstation and HEDT segments); product segment
+## can be determined by checking bits 5..3 of the CAPID0 field in PCU registers
+## device (see https://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xeon-scalable-spec-update.pdf#page=13
+## for Server/FPGA/Fabric segments description; for SKX-W/X no public
+## documentation seems to be available).  Specific device/function numbers
+## are provided for speeding up the search only, VID:DID is the real selector.
+## Commented out since revision 0x2006906 seems to fix the issue.
+#pci_config_val mode=success-all device=0x1e function=3 vid=0x8086 did=0x2083 offset=0x84 size=4 mask=0x38 val=0x38,0x18,0x8
+dependency required intel
--- a/SOURCES/06-55-04_disclaimer
+++ b/SOURCES/06-55-04_disclaimer
@ -0,0 +1,5 @@
+Microcode revisions 0x2000065 and higher for Intel Skylake-X/W (family 6,
+model 85, stepping 4; CPUID 0x50654) were disabled as they could cause system
+hangs on reboot, so the previous revision 0x2000064 was used instead.
+Please refer to /usr/share/doc/microcode_ctl/caveats/06-55-04_readme
+and /usr/share/doc/microcode_ctl/README.caveats for details.
--- a/SOURCES/06-55-04_readme
+++ b/SOURCES/06-55-04_readme
@ -0,0 +1,99 @@
+Intel Skylake Scalable Platform CPU models that belong to Workstation and HEDT
+(Basin Falls) segment (SKL-W/X, family 6, model 85, stepping 4) had reports
+of system hangs on reboot when revision 0x2000065 of microcode, that was included
+from microcode-20191112 update up to microcode-20200520 update, was applied[1].
+In order to address this, microcode update to the newer revision had been
+disabled by default on these systems, and the previously published microcode
+revision 0x2000064 is used by default for the OS-driven microcode update.
+
+Since revision 0x2006906 (included with the microcode-20200609 release)
+it is reported that the issue is no longer present, so the newer microcode
+revision is enabled by default now (but can be disabled explicitly; see below).
+
+[1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/21
+
+For the reference, SHA1 checksums of 06-55-04 microcode files containing
+microcode revisions in question are listed below:
+ * 06-55-04, revision 0x2000064: 2e405644a145de0f55517b6a9de118eec8ec1e5a
+ * 06-55-04, revision 0x2000065: f27f12b9d53f492c297afd856cdbc596786fad23
+ * 06-55-04, revision 0x2006906: 5f18f985f6d5ad369b5f6549b7f3ee55acaef967
+ * 06-55-04, revision 0x2006a08: 4059fb1f60370297454177f63cd7cc20b3fa1212
+ * 06-55-04, revision 0x2006a0a: 7ec27025329c82de9553c14a78733ad1013e5462
+ * 06-55-04, revision 0x2006b06: cb5bec976cb9754e3a22ab6828b3262a8f9eccf7
+ * 06-55-04, revision 0x2006c0a: 76b641375d136c08f5feb46aacebee40468ac085
+ * 06-55-04, revision 0x2006d05: dc4207cf4eb916ff34acbdddc474db0df781234f
+ * 06-55-04, revision 0x2006e05: bc67d247ad1c9a834bec5e452606db1381d6bc7e
+ * 06-55-04, revision 0x2006f05: c47277a6a47caedb518f311ce5d339528a8347e2
+ * 06-55-04, revision 0x2007006: 68ae0f321685ff97b50266bc20818f31563fc67c
+
+Please contact your system vendor for a BIOS/firmware update that contains
+the latest microcode version.  For the information regarding microcode versions
+required for mitigating specific side-channel cache attacks, please refer
+to the following knowledge base articles:
+ * CVE-2017-5715 ("Spectre"):
+   https://access.redhat.com/articles/3436091
+ * CVE-2018-3639 ("Speculative Store Bypass"):
+   https://access.redhat.com/articles/3540901
+ * CVE-2018-3620, CVE-2018-3646 ("L1 Terminal Fault Attack"):
+   https://access.redhat.com/articles/3562741
+ * CVE-2018-12130, CVE-2018-12126, CVE-2018-12127, and CVE-2019-11091
+   ("Microarchitectural Data Sampling"):
+   https://access.redhat.com/articles/4138151
+ * CVE-2019-0117 (Intel SGX Information Leak),
+   CVE-2019-0123 (Intel SGX Privilege Escalation),
+   CVE-2019-11135 (TSX Asynchronous Abort),
+   CVE-2019-11139 (Voltage Setting Modulation):
+   https://access.redhat.com/solutions/2019-microcode-nov
+ * CVE-2020-0543 (Special Register Buffer Data Sampling),
+   CVE-2020-0548 (Vector Register Data Sampling),
+   CVE-2020-0549 (L1D Cache Eviction Sampling):
+   https://access.redhat.com/solutions/5142751
+ * CVE-2020-8695 (Information disclosure issue in Intel SGX via RAPL interface),
+   CVE-2020-8696 (Vector Register Leakage-Active),
+   CVE-2020-8698 (Fast Forward Store Predictor):
+   https://access.redhat.com/articles/5569051
+ * CVE-2020-24489 (VT-d-related Privilege Escalation),
+   CVE-2020-24511 (Improper Isolation of Shared Resources),
+   CVE-2020-24512 (Observable Timing Discrepancy),
+   CVE-2020-24513 (Information Disclosure on Some Intel Atom Processors):
+   https://access.redhat.com/articles/6101171
+ * CVE-2021-0127 (Intel Processor Breakpoint Control Flow):
+   https://access.redhat.com/articles/6716541
+ * CVE-2022-0005 (Informational disclosure via JTAG),
+   CVE-2022-21123 (Shared Buffers Data Read),
+   CVE-2022-21125 (Shared Buffers Data Sampling),
+   CVE-2022-21127 (Update to Special Register Buffer Data Sampling),
+   CVE-2022-21131 (Protected Processor Inventory Number (PPIN) access protection),
+   CVE-2022-21136 (Overclocking service access protection),
+   CVE-2022-21151 (Optimization Removal-Induced Informational Disclosure),
+   CVE-2022-21166 (Device Register Partial Write):
+   https://access.redhat.com/articles/6963124
+ * CVE-2022-21233 (Stale Data Read from legacy xAPIC):
+   https://access.redhat.com/articles/6976398
+
+The information regarding disabling microcode update is provided below.
+
+To disable usage of the newer microcode revision for a specific kernel
+version, please create a file "disallow-intel-06-55-04" inside
+/lib/firmware/<kernel_version> directory, run
+"/usr/libexec/microcode_ctl/update_ucode" to update firmware directory
+used for late microcode updates, and run "dracut -f --kver <kernel_version>"
+so initramfs for this kernel version is regenerated, for example:
+
+    touch /lib/firmware/3.10.0-862.9.1/disallow-intel-06-55-04
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --kver 3.10.0-862.9.1
+
+To disable usage of the newer microcode revision for all kernels, please create
+file "/etc/microcode_ctl/ucode_with_caveats/disallow-intel-06-55-04", run
+"/usr/libexec/microcode_ctl/update_ucode" to update firmware directories
+used for late microcode updates, and run "dracut -f --regenerate-all"
+so initramfs images get regenerated, for example:
+
+    mkdir -p /etc/microcode_ctl/ucode_with_caveats
+    touch /etc/microcode_ctl/ucode_with_caveats/disallow-intel-06-55-04
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --regenerate-all
+
+Please refer to /usr/share/doc/microcode_ctl/README.caveats for additional
+information.
--- a/SOURCES/06-5e-03_config
+++ b/SOURCES/06-5e-03_config
@ -0,0 +1,3 @@
+model GenuineIntel 06-5e-03
+path intel-ucode/06-5e-03
+dependency required intel
--- a/SOURCES/06-5e-03_disclaimer
+++ b/SOURCES/06-5e-03_disclaimer
@ -0,0 +1,5 @@
+Microcode revisions 0xda and higher for Intel Skylake-H/S/Xeon E3 v5 (family 6,
+model 94, stepping 3; CPUID 0x506e3) are disabled as they may cause system
+instability; the previously published revision 0xd6 is used instead.
+Please refer to /usr/share/doc/microcode_ctl/caveats/06-5e-03_readme
+and /usr/share/doc/microcode_ctl/README.caveats for details.
--- a/SOURCES/06-5e-03_readme
+++ b/SOURCES/06-5e-03_readme
@ -0,0 +1,89 @@
+Some Intel Skylake CPU models (SKL-H/S/Xeon E3 v5, family 6, model 94,
+stepping 3) had reports of possible system hangs when revision 0xdc
+of microcode, that is included in microcode-20200609 update to address
+CVE-2020-0543, CVE-2020-0548, and CVE-2020-0549, was applied[1].  In order
+to address this, microcode updates to the newer revision had been disabled
+by default on these systems, and the previously published microcode revision
+0xd6 was used by default for the OS-driven microcode update.  The revision
+0xea seems[2] to have fixed the aforementioned issue, hence it is enabled
+by default (but can be disabled explicitly; see below).
+
+[1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/31#issuecomment-644885826
+[2] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/31#issuecomment-857806014
+
+For the reference, SHA1 checksums of 06-5e-03 microcode files containing
+microcode revisions in question are listed below:
+ * 06-5e-03, revision 0xd6: 86c60ee7d5d0d7115a4962c1c61ceecb0fd3a95a
+ * 06-5e-03, revision 0xdc: 5e1020a10678cfc60980131c3d3a2cfd462b4dd7
+ * 06-5e-03, revision 0xe2: 031e6e148b590d1c9cfdb6677539eeb4899e831c
+ * 06-5e-03, revision 0xea: e6c37056a849fd281f2fdb975361a914e07b86c8
+ * 06-5e-03, revision 0xec: 6458bf25da4906479a01ffdcaa6d466e22722e01
+ * 06-5e-03, revision 0xf0: 0683706bbbf470abbdad4b9923aa9647bfec9616
+
+Please contact your system vendor for a BIOS/firmware update that contains
+the latest microcode version.  For the information regarding microcode versions
+required for mitigating specific side-channel cache attacks, please refer
+to the following knowledge base articles:
+ * CVE-2017-5715 ("Spectre"):
+   https://access.redhat.com/articles/3436091
+ * CVE-2018-3639 ("Speculative Store Bypass"):
+   https://access.redhat.com/articles/3540901
+ * CVE-2018-3620, CVE-2018-3646 ("L1 Terminal Fault Attack"):
+   https://access.redhat.com/articles/3562741
+ * CVE-2018-12130, CVE-2018-12126, CVE-2018-12127, and CVE-2019-11091
+   ("Microarchitectural Data Sampling"):
+   https://access.redhat.com/articles/4138151
+ * CVE-2019-0117 (Intel SGX Information Leak),
+   CVE-2019-0123 (Intel SGX Privilege Escalation),
+   CVE-2019-11135 (TSX Asynchronous Abort),
+   CVE-2019-11139 (Voltage Setting Modulation):
+   https://access.redhat.com/solutions/2019-microcode-nov
+ * CVE-2020-0543 (Special Register Buffer Data Sampling),
+   CVE-2020-0548 (Vector Register Data Sampling),
+   CVE-2020-0549 (L1D Cache Eviction Sampling):
+   https://access.redhat.com/solutions/5142751
+ * CVE-2020-8695 (Information disclosure issue in Intel SGX via RAPL interface),
+   CVE-2020-8696 (Vector Register Leakage-Active),
+   CVE-2020-8698 (Fast Forward Store Predictor):
+   https://access.redhat.com/articles/5569051
+ * CVE-2020-24489 (VT-d-related Privilege Escalation),
+   CVE-2020-24511 (Improper Isolation of Shared Resources),
+   CVE-2020-24512 (Observable Timing Discrepancy),
+   CVE-2020-24513 (Information Disclosure on Some Intel Atom Processors):
+   https://access.redhat.com/articles/6101171
+ * CVE-2021-0127 (Intel Processor Breakpoint Control Flow):
+   https://access.redhat.com/articles/6716541
+ * CVE-2022-0005 (Informational disclosure via JTAG),
+   CVE-2022-21123 (Shared Buffers Data Read),
+   CVE-2022-21125 (Shared Buffers Data Sampling),
+   CVE-2022-21127 (Update to Special Register Buffer Data Sampling),
+   CVE-2022-21151 (Optimization Removal-Induced Informational Disclosure),
+   CVE-2022-21166 (Device Register Partial Write):
+   https://access.redhat.com/articles/6963124
+
+The information regarding disabling microcode update is provided below.
+
+To prevent usage of the latest 06-5e-03 microcode revision for a specific kernel
+version, please create a file "disallow-intel-06-5e-03" inside
+/lib/firmware/<kernel_version> directory, run
+"/usr/libexec/microcode_ctl/update_ucode" to remove it to firmware directory
+where microcode is available for late microcode update, and run
+"dracut -f --kver <kernel_version>", so initramfs for this kernel version
+is regenerated, for example:
+
+    touch /lib/firmware/3.10.0-862.9.1/disallow-intel-06-5e-03
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --kver 3.10.0-862.9.1
+
+To avoid  addition of the latest microcode for all kernels, please create file
+"/etc/microcode_ctl/ucode_with_caveats/disallow-intel-06-5e-03", run
+"/usr/libexec/microcode_ctl/update_ucode" for late microcode updates,
+and "dracut -f --regenerate-all" for early microcode updates:
+
+    mkdir -p /etc/microcode_ctl/ucode_with_caveats
+    touch /etc/microcode_ctl/ucode_with_caveats/disallow-intel-06-5e-03
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --regenerate-all
+
+Please refer to /usr/share/doc/microcode_ctl/README.caveats for additional
+information.
--- a/SOURCES/06-8c-01_config
+++ b/SOURCES/06-8c-01_config
@ -0,0 +1,3 @@
+model GenuineIntel 06-8c-01
+path intel-ucode/06-8c-01
+dependency required intel skip=success match-model-mode=off
--- a/SOURCES/06-8c-01_disclaimer
+++ b/SOURCES/06-8c-01_disclaimer
@ -0,0 +1,4 @@
+Microcode updates for Intel Tiger Lake-UP3/UP4 (family 6, model 140, stepping 1;
+CPUID 0x806c1) are disabled as they may cause system instability.
+Please refer to /usr/share/doc/microcode_ctl/caveats/06-8c-01_readme
+and /usr/share/doc/microcode_ctl/README.caveats for details.
--- a/SOURCES/06-8c-01_readme
+++ b/SOURCES/06-8c-01_readme
@ -0,0 +1,66 @@
+Some Intel Tiger Lake-UP3/UP4 CPU models (TGL, family 6, model 140, stepping 1)
+had reports of system hangs when a microcode update, that was included
+since microcode-20201110 update, was applied[1].  In order to address this,
+microcode update had been disabled by default on these systems.  The revision
+0x88 seems to have fixed the aforementioned issue, hence it is enabled
+by default (but can be disabled explicitly; see below).
+
+[1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/44
+
+For the reference, SHA1 checksums of 06-8c-01 microcode files containing
+microcode revisions in question are listed below:
+ * 06-8c-01, revision 0x68: 2204a6dee1688980cd228268fdf4b6ed5904fe04
+ * 06-8c-01, revision 0x88: 61b6590feb2769046d5b0c394179beaf2df51290
+ * 06-8c-01, revision 0x9a: 48b3ae8d27d8138b5b47052d2f8184bf555ad18e
+ * 06-8c-01, revision 0xa4: 70753f54f5be84376bdebeb710595e4dc2f6d92f
+ * 06-8c-01, revision 0xa6: fdcf89e3a15a20df8aeee215b78bf5d13d731044
+ * 06-8c-01, revision 0xaa: cf84883f6b3184690c25ccade0b10fa839ac8657
+ * 06-8c-01, revision 0xac: b9f342e564a0be372ed1f4709263bf811feb022a
+ * 06-8c-01, revision 0xb4: 6596bb8696cde85538bb833d090f0b7a42d6ae14
+ * 06-8c-01, revision 0xb6: 76556e8248a89f38cd55a6c83dccc995ba176091
+ * 06-8c-01, revision 0xb8: 6e9b138d1db2934479b179af4a3a19e843c4b4e4
+
+Please contact your system vendor for a BIOS/firmware update that contains
+the latest microcode version.  For the information regarding microcode versions
+required for mitigating specific side-channel cache attacks, please refer
+to the following knowledge base articles:
+ * CVE-2020-8695 (Information disclosure issue in Intel SGX via RAPL interface),
+   CVE-2020-8696 (Vector Register Leakage-Active),
+   CVE-2020-8698 (Fast Forward Store Predictor):
+   https://access.redhat.com/articles/5569051
+ * CVE-2020-24489 (VT-d-related Privilege Escalation),
+   CVE-2020-24511 (Improper Isolation of Shared Resources),
+   CVE-2020-24512 (Observable Timing Discrepancy),
+   CVE-2020-24513 (Information Disclosure on Some Intel Atom Processors):
+   https://access.redhat.com/articles/6101171
+ * CVE-2021-0145 (Fast store forward predictor - Cross Domain Training):
+   https://access.redhat.com/articles/6716541
+ * CVE-2022-21123 (Shared Buffers Data Read):
+   https://access.redhat.com/articles/6963124
+
+The information regarding disabling microcode update is provided below.
+
+To disable 06-8c-01 microcode updates for a specific kernel
+version, please create a file "disallow-intel-06-8c-01" inside
+/lib/firmware/<kernel_version> directory, run
+"/usr/libexec/microcode_ctl/update_ucode" to remove it from the firmware
+directory where microcode is available for late microcode update, and run
+"dracut -f --kver <kernel_version>", so initramfs for this kernel version
+is regenerated, for example:
+
+    touch /lib/firmware/3.10.0-862.9.1/disallow-intel-06-8c-01
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --kver 3.10.0-862.9.1
+
+To avoid addition of this microcode for all kernels, please create file
+"/etc/microcode_ctl/ucode_with_caveats/disallow-intel-06-8c-01", run
+"/usr/libexec/microcode_ctl/update_ucode" for late microcode updates,
+and "dracut -f --regenerate-all" for early microcode updates:
+
+    mkdir -p /etc/microcode_ctl/ucode_with_caveats
+    touch /etc/microcode_ctl/ucode_with_caveats/disallow-intel-06-8c-01
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --regenerate-all
+
+Please refer to /usr/share/doc/microcode_ctl/README.caveats for additional
+information.
--- a/SOURCES/06-8e-9e-0x-0xca_config
+++ b/SOURCES/06-8e-9e-0x-0xca_config
@ -0,0 +1,5 @@
+path intel-ucode/*
+vendor GenuineIntel
+dmi mode=fail-equal key=bios_vendor val="Dell Inc."
+dependency required intel
+disable early late
--- a/SOURCES/06-8e-9e-0x-0xca_disclaimer
+++ b/SOURCES/06-8e-9e-0x-0xca_disclaimer
--- a/SOURCES/06-8e-9e-0x-0xca_readme
+++ b/SOURCES/06-8e-9e-0x-0xca_readme
@ -0,0 +1,219 @@
+Some Dell systems that use some models of Intel CPUs are susceptible to hangs
+and system instability during or after microcode update to revision 0xc6/0xca
+(included as part of microcode-20191113/microcode-20191115 update that addressed
+CVE-2019-0117, CVE-2019-0123, CVE-2019-11135, and CVE-2019-11139)
+and/or revision 0xd6 (included as part of microcode-20200609 update
+that addressed CVE-2020-0543, CVE-2020-0548, and CVE-2020-0549)
+[1][2][3][4][5][6].  In order to address this, microcode update to the newer
+revision has been disabled by default on these systems, and the previously
+published microcode revisions 0xae/0xb4/0xb8 are used by default
+for the OS-driven microcode update.
+
+[1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/23
+[2] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/24
+[3] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/33
+[4] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/34
+[5] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/35
+[6] https://bugzilla.redhat.com/show_bug.cgi?id=1846097
+
+This caveat contains revision 0xca of 06-[89]e-0x microcode publicly released
+by Intel; for the latest revision of the microcode files, please refer to caveat
+06-8e-9e-0x-dell.
+
+For the reference, microarchitectures of the affected CPU models:
+ * Amber Lake-Y
+ * Kaby Lake-G/H/S/U/Y/Xeon E3
+ * Coffee Lake-H/S/U/Xeon E
+ * Comet Lake-U 4+2
+ * Whiskey Lake-U
+
+Family names of the affected CPU models:
+ * 7th Generation Intel® Core™ Processor Family
+ * 8th Generation Intel® Core™ Processor Family
+ * 9th Generation Intel® Core™ Processor Family
+ * 10th Generation Intel® Core™ Processor Family (selected models)
+ * Intel® Celeron® Processor G Series
+ * Intel® Celeron® Processor 5000 Series
+ * Intel® Core™ X-series Processors (i7-7740X, i5-7640X only)
+ * Intel® Pentium® Gold Processor Series
+ * Intel® Pentium® Processor Series (selected models)
+ * Intel® Xeon® Processor E Family
+ * Intel® Xeon® Processor E3 v6 Family
+
+SHA1 checksums of the microcode files containing microcode revisions
+in question:
+ * 06-8e-09, revision 0xb4: e253c95c29c3eef6576db851dfa069d82a91256f
+ * 06-8e-0a, revision 0xb4: 45bcba494be07df9eeccff9627578095a97fba4d
+ * 06-8e-0b, revision 0xb8: 3e54bf91d642ad81ff07fe274d0cfb5d10d09c43
+ * 06-8e-0c, revision 0xb8: bf635c87177d6dc4e067ec11e1caeb19d3c325f0
+ * 06-9e-09, revision 0xb4: 42f68eec4ddb79dd6be0c95c4ce60e514e4504b1
+ * 06-9e-0a, revision 0xb4: 37c7cb394dd36610b57943578343723da67d50f0
+ * 06-9e-0b, revision 0xb4: b5399109d0a5ce8f5fb623ff942da0322b438b95
+ * 06-9e-0c, revision 0xae: 131bce89e4d210de8322ffbc6bd787f1af66a7df
+ * 06-9e-0d, revision 0xb8: 22511b007d1df55558d115abb13a1c23ea398317
+
+ * 06-8e-09, revision 0xca: 9afa1bae40995207afef13247f114be042d88083
+ * 06-8e-0a, revision 0xca: 1d90291cc25e17dc6c36c764cf8c06b41fed4c16
+ * 06-8e-0b, revision 0xca: 3fb1246a6594eff5e2c2076c63c600d734f10777
+ * 06-8e-0c, revision 0xca: e871540671f59b4fa5d0d454798f09a4d412aace
+ * 06-9e-09, revision 0xca: b5eed11108ab7ac1e675fe75d0e7454a400ddd35
+ * 06-9e-0a, revision 0xca: e472304aaa2f3815a32822cb111ab3f43bf3dfe4
+ * 06-9e-0b, revision 0xca: 78f47c5162da680878ed057dc7c853f9737c524b
+ * 06-9e-0c, revision 0xca: f23848a009928796a153cb9e8f44522136969408
+ * 06-9e-0d, revision 0xca: c7a3d469469ee828ba9faf91b67af881fceec3b7
+
+ * 06-8e-09, revision 0xd6: 2272c621768437d20e602207752201e0966e5a8c
+ * 06-8e-0a, revision 0xd6: 0b145afb88e028e612f04c2a86385e7d7c3fefc4
+ * 06-8e-0b, revision 0xd6: c3831b05da83be54f3acc451a1bce90f75e2e9e5
+ * 06-8e-0c, revision 0xd6: 4b8938a93e23f4b5a2d9de40b87f6afcfdc27c05
+ * 06-9e-09, revision 0xd6: 4bacba8c598508e7dd4e87e179586abe7a1a987f
+ * 06-9e-0a, revision 0xd6: 4c236afeef9f80ff3a286698fe7cef72926722f0
+ * 06-9e-0b, revision 0xd6: 2f9ab9b2ba29559ce177632281d7290a24fed2ef
+ * 06-9e-0c, revision 0xd6: 4b9059e519bcab6085b6c103f5d99e509fe0b2bb
+ * 06-9e-0d, revision 0xd6: 3a3b7edfd8126bb34b761b46a32102a622047899
+
+ * 06-8e-09, revision 0xde: 84d7514101eb8904834a3dacdee684b3c574245f
+ * 06-8e-0a, revision 0xe0: 080b9e3ebbcf6bb1eca0fb5f640e6bfbfe3a1e6e
+ * 06-8e-0b, revision 0xde: 80fed976231bbff4c7103e373498e07eef0bff31
+ * 06-8e-0c, revision 0xde: 84f160587fea4acb81451c8ff53dc51afba06343
+ * 06-9e-09, revision 0xde: 422026ffb2cca446693c586be98d0d9e7dfeb116
+ * 06-9e-0a, revision 0xde: b6c44b9fe26e1d6bafa27f37ffe010284294bf1c
+ * 06-9e-0b, revision 0xde: 6452937a0d359066b95f9e679a41a15490770312
+ * 06-9e-0c, revision 0xde: a95021a4e497e0bf3691ecf3d020728f25a3f542
+ * 06-9e-0d, revision 0xde: 03b20fdc2fa3f9586f93a7e40d3b61be5b7b788c
+
+ * 06-8e-09, revision 0xea: caa7192fb2223e3e52389aca84930aee326b384d
+ * 06-8e-0a, revision 0xea: ab4d5d3b51445d055763796a0362f8ab249cf4c8
+ * 06-8e-0b, revision 0xea: 5406c513f90286c02476ee0d4a6c8010a263c3ac
+ * 06-8e-0c, revision 0xea: 8c045b9056443862c95573efd4646e331a2310d3
+ * 06-9e-09, revision 0xea: a9f8a14ca3808f6380d6dff92e1fd693cc909668
+ * 06-9e-0a, revision 0xea: b7726bdba2fe74d8f419c68f417d796d569b9ec4
+ * 06-9e-0b, revision 0xea: 963dca66aedf2bfb0613d0d9515c6bcfb0589e0c
+ * 06-9e-0c, revision 0xea: 1329a4d8166fe7d70833d21428936254e11efbb4
+ * 06-9e-0d, revision 0xea: 9c73f2ac6c4edbf8b0aefdd5d6780c7219be702a
+
+ * 06-8e-09, revision 0xec: 78eb624be5e8084e438318bdad99f9ddc082def7
+ * 06-8e-0a, revision 0xec: 6c41a6ad412f48f81a9d5edf59dcdecc358398bf
+ * 06-8e-0b, revision 0xec: 89dd0de598c83eb9714f6839499f322dfce2b693
+ * 06-8e-0c, revision 0xec: 225ea349b9cb3b1b94e237deb797e0c60d14a84c
+ * 06-9e-09, revision 0xec: fc5c0206fe392a0ddad4dc9363fde2d3e3d1e681
+ * 06-9e-0a, revision 0xec: 128002076e4ac3c75697fb4efdf1f8ddcc971fbe
+ * 06-9e-0b, revision 0xec: ac8c3865a143b2e03869f15a5b86e560f60ad632
+ * 06-9e-0c, revision 0xec: 6e3d695290def517857c8e743dc65161479f0c04
+ * 06-9e-0d, revision 0xec: 58b1ec5fee7dd1a761ed901b374ccb978737a979
+
+ * 06-8e-09, revision 0xf0: 219e2b9168a09451b17813b97995cc59cc78b414
+ * 06-8e-0a, revision 0xf0: 3c4241d0b9d1a1a1e82d03b365fdd3b843006a7c
+ * 06-8e-0b, revision 0xf0: 79b61f034cba86e61641114bbab49ec0166c0f35
+ * 06-8e-0c, revision 0xf0: 11d166de440dbe9c440e90cb610ef4b9d48242b1
+ * 06-9e-09, revision 0xf0: 49e142da74e7298b2db738ff7dd1a9b0fa4e0c3e
+ * 06-9e-0a, revision 0xf0: 8de1d4a80cd683bf09854c33905c69d3d7ac7730
+ * 06-9e-0b, revision 0xf0: ff092c6ac8333f0abcd94f7d2e2088f31d960e62
+ * 06-9e-0c, revision 0xf0: 3702f21e87b75bea6f4b1ee0407b941ef31d4ad1
+ * 06-9e-0d, revision 0xf0: 226feaaa431eb76e734ab68efc2ea7b07aa3c7d9
+
+ * 06-8e-0c, revision 0xf4: 6a5e140bf8c046acb6958bad1db1fee66c8601ad
+ * 06-9e-0d, revision 0xf4: 3433d4394b05a9c8aefb9c46674bad7b7e934f11
+
+ * 06-8e-09, revision 0xf2: 2e67e55d7b805edcfaac57898088323df7315b25
+ * 06-8e-0a, revision 0xf2: f9e1dbeb969ded845b726c62336f243099714bcf
+ * 06-8e-0b, revision 0xf2: 3d45fbcbefd92dbbedf0eed04aeb29c7430c7c0e
+ * 06-8e-0c, revision 0xf6: bd37be38dbd046d4d66f126cfaa79e43bfe88c0d
+ * 06-9e-09, revision 0xf2: 716257544acf2c871d74e4627e7de86ee1024185
+ * 06-9e-0a, revision 0xf2: 933c5d6710195336381e15a160d36aaa52d358fd
+ * 06-9e-0b, revision 0xf2: 92eaafdb72f6d4231046aadb92caa0038e94fca8
+ * 06-9e-0c, revision 0xf2: ad8922b4f91b5214dd88c56c0a12d15edb9cea5b
+ * 06-9e-0d, revision 0xf8: 8fdea727c6ce46b26e0cffa6ee4ff1ba0c45cf14
+
+ * 06-8e-09, revision 0xf4: e059ab6b168f3831d624acc153e18ab1c8488570
+ * 06-8e-0a, revision 0xf4: d1ade1ccfe5c6105d0786dfe887696808954f8b4
+ * 06-8e-0b, revision 0xf4: 0bc93736f3f5b8b6569bebac4e9627ab923621e0
+ * 06-8e-0c, revision 0xf8: be93b4826a3f40219a9fc4fc5afa87b320279f6e
+ * 06-9e-09, revision 0xf4: 317564f3ac7b99b5900b91e2be3e23b9b66bc2c0
+ * 06-9e-0a, revision 0xf4: 9659f73e2c6081eb5c146c5ed763fa5db21df901
+ * 06-9e-0b, revision 0xf4: e60b567ad54da129d05a77e305cae4488579979d
+ * 06-9e-0c, revision 0xf4: 74d52a11a905dd7b254fa72b014c3bab8022ba3d
+ * 06-9e-0d, revision 0xfa: 484738563e793d5b90b94869dc06edf0407182f1
+
+ * 06-8e-0c, revision 0xfa: d2c2ed4634b2f345382991237bedb90430fcc0b3
+ * 06-9e-09, revision 0xf8: 69b8a5435bfb976ef5ec5930dae870e26835442e
+ * 06-9e-0a, revision 0xf6: c1f0f556cd203aa6e1d0d1ffb0a65b32f32692be
+ * 06-9e-0c, revision 0xf6: a8dfddd009f750b6528f93556b67d4eeca1e5dfa
+ * 06-9e-0d, revision 0xfc: a0ad865fd2d3b9d955a889c96fabc67da0235dda
+
+ * 06-8e-09, revision 0xf6: c2786ef2eb4feb8ac3e3efae83c361de3ad8df0d
+ * 06-8e-0a, revision 0xf6: 9bb2839d451ecee40c1eb08f40e4baec9a159e90
+ * 06-8e-0b, revision 0xf6: 7b60fc7d44654976df32971a45399b3b910f3390
+ * 06-8e-0c, revision 0xfc: 34efc9a54dc32082b898116840c0a1a1cef59e69
+ * 06-9e-0a, revision 0xf8: 880163a2da13ed1eae1654535d751a788de6fa3f
+ * 06-9e-0b, revision 0xf6: ca90c9139d0c1554f6d17ae1bdcf94d0faa6ece7
+ * 06-9e-0c, revision 0xf8: 97dcc36772894619ab28be8c35c4ff9f15d684ae
+ * 06-9e-0d, revision 0x100: 1a00b6a4373b95811c6396f2a0d8d497f4006fb7
+
+Please contact your system vendor for a BIOS/firmware update that contains
+the latest microcode version.  For the information regarding microcode versions
+required for mitigating specific side-channel cache attacks, please refer
+to the following knowledge base articles:
+ * CVE-2017-5715 ("Spectre"):
+   https://access.redhat.com/articles/3436091
+ * CVE-2018-3639 ("Speculative Store Bypass"):
+   https://access.redhat.com/articles/3540901
+ * CVE-2018-3620, CVE-2018-3646 ("L1 Terminal Fault Attack"):
+   https://access.redhat.com/articles/3562741
+ * CVE-2018-12130, CVE-2018-12126, CVE-2018-12127, and CVE-2019-11091
+   ("Microarchitectural Data Sampling"):
+   https://access.redhat.com/articles/4138151
+ * CVE-2019-0117 (Intel SGX Information Leak),
+   CVE-2019-0123 (Intel SGX Privilege Escalation),
+   CVE-2019-11135 (TSX Asynchronous Abort),
+   CVE-2019-11139 (Voltage Setting Modulation):
+   https://access.redhat.com/solutions/2019-microcode-nov
+ * CVE-2020-0543 (Special Register Buffer Data Sampling),
+   CVE-2020-0548 (Vector Register Data Sampling),
+   CVE-2020-0549 (L1D Cache Eviction Sampling):
+   https://access.redhat.com/solutions/5142751
+ * CVE-2020-8695 (Information disclosure issue in Intel SGX via RAPL interface),
+   CVE-2020-8696 (Vector Register Leakage-Active),
+   CVE-2020-8698 (Fast Forward Store Predictor):
+   https://access.redhat.com/articles/5569051
+ * CVE-2020-24489 (VT-d-related Privilege Escalation),
+   CVE-2020-24511 (Improper Isolation of Shared Resources),
+   CVE-2020-24512 (Observable Timing Discrepancy),
+   CVE-2020-24513 (Information Disclosure on Some Intel Atom Processors):
+   https://access.redhat.com/articles/6101171
+ * CVE-2021-0127 (Intel Processor Breakpoint Control Flow):
+   https://access.redhat.com/articles/6716541
+ * CVE-2022-0005 (Informational disclosure via JTAG),
+   CVE-2022-21123 (Shared Buffers Data Read),
+   CVE-2022-21125 (Shared Buffers Data Sampling),
+   CVE-2022-21127 (Update to Special Register Buffer Data Sampling),
+   CVE-2022-21151 (Optimization Removal-Induced Informational Disclosure),
+   CVE-2022-21166 (Device Register Partial Write):
+   https://access.redhat.com/articles/6963124
+
+The information regarding disabling microcode update is provided below.
+
+To disable usage of the newer microcode revision for a specific kernel
+version, please create a file "disallow-intel-06-8e-9e-0x-0xca" inside
+/lib/firmware/<kernel_version> directory, run
+"/usr/libexec/microcode_ctl/update_ucode" to update firmware directory
+used for late microcode updates, and run "dracut -f --kver <kernel_version>"
+so initramfs for this kernel version is regenerated, for example:
+
+    touch /lib/firmware/3.10.0-862.9.1/disallow-intel-06-8e-9e-0x-0xca
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --kver 3.10.0-862.9.1
+
+To disable usage of the newer microcode revision for all kernels, please create
+file "/etc/microcode_ctl/ucode_with_caveats/disallow-intel-06-8e-9e-0x-0xca",
+run "/usr/libexec/microcode_ctl/update_ucode" to update firmware directories
+used for late microcode updates, and run "dracut -f --regenerate-all"
+so initramfs images get regenerated, for example:
+
+    mkdir -p /etc/microcode_ctl/ucode_with_caveats
+    touch /etc/microcode_ctl/ucode_with_caveats/disallow-intel-06-8e-9e-0xca
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --regenerate-all
+
+Please refer to /usr/share/doc/microcode_ctl/README.caveats for additional
+information.
--- a/SOURCES/06-8e-9e-0x-dell_config
+++ b/SOURCES/06-8e-9e-0x-dell_config
@ -0,0 +1,7 @@
+path intel-ucode/*
+vendor GenuineIntel
+## It is deemed that blacklisting all 06-[89]e-0x models on all hardware
+## in cases where no model filter is used is too broad, hence
+## no-model-mode=success.
+dmi mode=fail-equal no-model-mode=success key=bios_vendor val="Dell Inc."
+dependency required intel
--- a/SOURCES/06-8e-9e-0x-dell_disclaimer
+++ b/SOURCES/06-8e-9e-0x-dell_disclaimer
@ -0,0 +1,7 @@
+Some Dell systems that use some models of Intel CPUs are susceptible to hangs
+and system instability during or after microcode update to newer revisions.
+In order to address this, microcode update to these newer revision
+has been disabled by default on these systems, and the previously published
+microcode revisions are used by default for the OS-driven microcode update.
+Please refer to /usr/share/doc/microcode_ctl/caveats/06-8e-9e-0x-dell_readme
+and /usr/share/doc/microcode_ctl/README.caveats for details.
--- a/SOURCES/06-8e-9e-0x-dell_readme
+++ b/SOURCES/06-8e-9e-0x-dell_readme
@ -0,0 +1,219 @@
+Some Dell systems that use some models of Intel CPUs are susceptible to hangs
+and system instability during or after microcode update to revision 0xc6/0xca
+(included as part of microcode-20191113/microcode-20191115 update that addressed
+CVE-2019-0117, CVE-2019-0123, CVE-2019-11135, and CVE-2019-11139)
+and/or revision 0xd6 (included as part of microcode-20200609 update
+that addressed CVE-2020-0543, CVE-2020-0548, and CVE-2020-0549)
+[1][2][3][4][5][6].  In order to address this, microcode update to the newer
+revision has been disabled by default on these systems, and the previously
+published microcode revisions 0xae/0xb4/0xb8 are used by default
+for the OS-driven microcode update.
+
+[1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/23
+[2] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/24
+[3] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/33
+[4] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/34
+[5] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/35
+[6] https://bugzilla.redhat.com/show_bug.cgi?id=1846097
+
+This caveat contains latest microcode revisions publicly released by Intel;
+for the revision 0xca of the microcode files, please refer to caveat
+06-8e-9e-0x-0xca.
+
+For the reference, microarchitectures of the affected CPU models:
+ * Amber Lake-Y
+ * Kaby Lake-G/H/S/U/X/Y/Xeon E3
+ * Coffee Lake-H/S/U/Xeon E
+ * Comet Lake-U 4+2
+ * Whiskey Lake-U
+
+Family names of the affected CPU models:
+ * 7th Generation Intel® Core™ Processor Family
+ * 8th Generation Intel® Core™ Processor Family
+ * 9th Generation Intel® Core™ Processor Family
+ * 10th Generation Intel® Core™ Processor Family (selected models)
+ * Intel® Celeron® Processor G Series
+ * Intel® Celeron® Processor 5000 Series
+ * Intel® Core™ X-series Processors (i7-7740X, i5-7640X only)
+ * Intel® Pentium® Gold Processor Series
+ * Intel® Pentium® Processor Series (selected models)
+ * Intel® Xeon® Processor E Family
+ * Intel® Xeon® Processor E3 v6 Family
+
+SHA1 checksums of the microcode files containing microcode revisions
+in question:
+ * 06-8e-09, revision 0xb4: e253c95c29c3eef6576db851dfa069d82a91256f
+ * 06-8e-0a, revision 0xb4: 45bcba494be07df9eeccff9627578095a97fba4d
+ * 06-8e-0b, revision 0xb8: 3e54bf91d642ad81ff07fe274d0cfb5d10d09c43
+ * 06-8e-0c, revision 0xb8: bf635c87177d6dc4e067ec11e1caeb19d3c325f0
+ * 06-9e-09, revision 0xb4: 42f68eec4ddb79dd6be0c95c4ce60e514e4504b1
+ * 06-9e-0a, revision 0xb4: 37c7cb394dd36610b57943578343723da67d50f0
+ * 06-9e-0b, revision 0xb4: b5399109d0a5ce8f5fb623ff942da0322b438b95
+ * 06-9e-0c, revision 0xae: 131bce89e4d210de8322ffbc6bd787f1af66a7df
+ * 06-9e-0d, revision 0xb8: 22511b007d1df55558d115abb13a1c23ea398317
+
+ * 06-8e-09, revision 0xca: 9afa1bae40995207afef13247f114be042d88083
+ * 06-8e-0a, revision 0xca: 1d90291cc25e17dc6c36c764cf8c06b41fed4c16
+ * 06-8e-0b, revision 0xca: 3fb1246a6594eff5e2c2076c63c600d734f10777
+ * 06-8e-0c, revision 0xca: e871540671f59b4fa5d0d454798f09a4d412aace
+ * 06-9e-09, revision 0xca: b5eed11108ab7ac1e675fe75d0e7454a400ddd35
+ * 06-9e-0a, revision 0xca: e472304aaa2f3815a32822cb111ab3f43bf3dfe4
+ * 06-9e-0b, revision 0xca: 78f47c5162da680878ed057dc7c853f9737c524b
+ * 06-9e-0c, revision 0xca: f23848a009928796a153cb9e8f44522136969408
+ * 06-9e-0d, revision 0xca: c7a3d469469ee828ba9faf91b67af881fceec3b7
+
+ * 06-8e-09, revision 0xd6: 2272c621768437d20e602207752201e0966e5a8c
+ * 06-8e-0a, revision 0xd6: 0b145afb88e028e612f04c2a86385e7d7c3fefc4
+ * 06-8e-0b, revision 0xd6: c3831b05da83be54f3acc451a1bce90f75e2e9e5
+ * 06-8e-0c, revision 0xd6: 4b8938a93e23f4b5a2d9de40b87f6afcfdc27c05
+ * 06-9e-09, revision 0xd6: 4bacba8c598508e7dd4e87e179586abe7a1a987f
+ * 06-9e-0a, revision 0xd6: 4c236afeef9f80ff3a286698fe7cef72926722f0
+ * 06-9e-0b, revision 0xd6: 2f9ab9b2ba29559ce177632281d7290a24fed2ef
+ * 06-9e-0c, revision 0xd6: 4b9059e519bcab6085b6c103f5d99e509fe0b2bb
+ * 06-9e-0d, revision 0xd6: 3a3b7edfd8126bb34b761b46a32102a622047899
+
+ * 06-8e-09, revision 0xde: 84d7514101eb8904834a3dacdee684b3c574245f
+ * 06-8e-0a, revision 0xe0: 080b9e3ebbcf6bb1eca0fb5f640e6bfbfe3a1e6e
+ * 06-8e-0b, revision 0xde: 80fed976231bbff4c7103e373498e07eef0bff31
+ * 06-8e-0c, revision 0xde: 84f160587fea4acb81451c8ff53dc51afba06343
+ * 06-9e-09, revision 0xde: 422026ffb2cca446693c586be98d0d9e7dfeb116
+ * 06-9e-0a, revision 0xde: b6c44b9fe26e1d6bafa27f37ffe010284294bf1c
+ * 06-9e-0b, revision 0xde: 6452937a0d359066b95f9e679a41a15490770312
+ * 06-9e-0c, revision 0xde: a95021a4e497e0bf3691ecf3d020728f25a3f542
+ * 06-9e-0d, revision 0xde: 03b20fdc2fa3f9586f93a7e40d3b61be5b7b788c
+
+ * 06-8e-09, revision 0xea: caa7192fb2223e3e52389aca84930aee326b384d
+ * 06-8e-0a, revision 0xea: ab4d5d3b51445d055763796a0362f8ab249cf4c8
+ * 06-8e-0b, revision 0xea: 5406c513f90286c02476ee0d4a6c8010a263c3ac
+ * 06-8e-0c, revision 0xea: 8c045b9056443862c95573efd4646e331a2310d3
+ * 06-9e-09, revision 0xea: a9f8a14ca3808f6380d6dff92e1fd693cc909668
+ * 06-9e-0a, revision 0xea: b7726bdba2fe74d8f419c68f417d796d569b9ec4
+ * 06-9e-0b, revision 0xea: 963dca66aedf2bfb0613d0d9515c6bcfb0589e0c
+ * 06-9e-0c, revision 0xea: 1329a4d8166fe7d70833d21428936254e11efbb4
+ * 06-9e-0d, revision 0xea: 9c73f2ac6c4edbf8b0aefdd5d6780c7219be702a
+
+ * 06-8e-09, revision 0xec: 78eb624be5e8084e438318bdad99f9ddc082def7
+ * 06-8e-0a, revision 0xec: 6c41a6ad412f48f81a9d5edf59dcdecc358398bf
+ * 06-8e-0b, revision 0xec: 89dd0de598c83eb9714f6839499f322dfce2b693
+ * 06-8e-0c, revision 0xec: 225ea349b9cb3b1b94e237deb797e0c60d14a84c
+ * 06-9e-09, revision 0xec: fc5c0206fe392a0ddad4dc9363fde2d3e3d1e681
+ * 06-9e-0a, revision 0xec: 128002076e4ac3c75697fb4efdf1f8ddcc971fbe
+ * 06-9e-0b, revision 0xec: ac8c3865a143b2e03869f15a5b86e560f60ad632
+ * 06-9e-0c, revision 0xec: 6e3d695290def517857c8e743dc65161479f0c04
+ * 06-9e-0d, revision 0xec: 58b1ec5fee7dd1a761ed901b374ccb978737a979
+
+ * 06-8e-09, revision 0xf0: 219e2b9168a09451b17813b97995cc59cc78b414
+ * 06-8e-0a, revision 0xf0: 3c4241d0b9d1a1a1e82d03b365fdd3b843006a7c
+ * 06-8e-0b, revision 0xf0: 79b61f034cba86e61641114bbab49ec0166c0f35
+ * 06-8e-0c, revision 0xf0: 11d166de440dbe9c440e90cb610ef4b9d48242b1
+ * 06-9e-09, revision 0xf0: 49e142da74e7298b2db738ff7dd1a9b0fa4e0c3e
+ * 06-9e-0a, revision 0xf0: 8de1d4a80cd683bf09854c33905c69d3d7ac7730
+ * 06-9e-0b, revision 0xf0: ff092c6ac8333f0abcd94f7d2e2088f31d960e62
+ * 06-9e-0c, revision 0xf0: 3702f21e87b75bea6f4b1ee0407b941ef31d4ad1
+ * 06-9e-0d, revision 0xf0: 226feaaa431eb76e734ab68efc2ea7b07aa3c7d9
+
+ * 06-8e-0c, revision 0xf4: 6a5e140bf8c046acb6958bad1db1fee66c8601ad
+ * 06-9e-0d, revision 0xf4: 3433d4394b05a9c8aefb9c46674bad7b7e934f11
+
+ * 06-8e-09, revision 0xf2: 2e67e55d7b805edcfaac57898088323df7315b25
+ * 06-8e-0a, revision 0xf2: f9e1dbeb969ded845b726c62336f243099714bcf
+ * 06-8e-0b, revision 0xf2: 3d45fbcbefd92dbbedf0eed04aeb29c7430c7c0e
+ * 06-8e-0c, revision 0xf6: bd37be38dbd046d4d66f126cfaa79e43bfe88c0d
+ * 06-9e-09, revision 0xf2: 716257544acf2c871d74e4627e7de86ee1024185
+ * 06-9e-0a, revision 0xf2: 933c5d6710195336381e15a160d36aaa52d358fd
+ * 06-9e-0b, revision 0xf2: 92eaafdb72f6d4231046aadb92caa0038e94fca8
+ * 06-9e-0c, revision 0xf2: ad8922b4f91b5214dd88c56c0a12d15edb9cea5b
+ * 06-9e-0d, revision 0xf8: 8fdea727c6ce46b26e0cffa6ee4ff1ba0c45cf14
+
+ * 06-8e-09, revision 0xf4: e059ab6b168f3831d624acc153e18ab1c8488570
+ * 06-8e-0a, revision 0xf4: d1ade1ccfe5c6105d0786dfe887696808954f8b4
+ * 06-8e-0b, revision 0xf4: 0bc93736f3f5b8b6569bebac4e9627ab923621e0
+ * 06-8e-0c, revision 0xf8: be93b4826a3f40219a9fc4fc5afa87b320279f6e
+ * 06-9e-09, revision 0xf4: 317564f3ac7b99b5900b91e2be3e23b9b66bc2c0
+ * 06-9e-0a, revision 0xf4: 9659f73e2c6081eb5c146c5ed763fa5db21df901
+ * 06-9e-0b, revision 0xf4: e60b567ad54da129d05a77e305cae4488579979d
+ * 06-9e-0c, revision 0xf4: 74d52a11a905dd7b254fa72b014c3bab8022ba3d
+ * 06-9e-0d, revision 0xfa: 484738563e793d5b90b94869dc06edf0407182f1
+
+ * 06-8e-0c, revision 0xfa: d2c2ed4634b2f345382991237bedb90430fcc0b3
+ * 06-9e-09, revision 0xf8: 69b8a5435bfb976ef5ec5930dae870e26835442e
+ * 06-9e-0a, revision 0xf6: c1f0f556cd203aa6e1d0d1ffb0a65b32f32692be
+ * 06-9e-0c, revision 0xf6: a8dfddd009f750b6528f93556b67d4eeca1e5dfa
+ * 06-9e-0d, revision 0xfc: a0ad865fd2d3b9d955a889c96fabc67da0235dda
+
+ * 06-8e-09, revision 0xf6: c2786ef2eb4feb8ac3e3efae83c361de3ad8df0d
+ * 06-8e-0a, revision 0xf6: 9bb2839d451ecee40c1eb08f40e4baec9a159e90
+ * 06-8e-0b, revision 0xf6: 7b60fc7d44654976df32971a45399b3b910f3390
+ * 06-8e-0c, revision 0xfc: 34efc9a54dc32082b898116840c0a1a1cef59e69
+ * 06-9e-0a, revision 0xf8: 880163a2da13ed1eae1654535d751a788de6fa3f
+ * 06-9e-0b, revision 0xf6: ca90c9139d0c1554f6d17ae1bdcf94d0faa6ece7
+ * 06-9e-0c, revision 0xf8: 97dcc36772894619ab28be8c35c4ff9f15d684ae
+ * 06-9e-0d, revision 0x100: 1a00b6a4373b95811c6396f2a0d8d497f4006fb7
+
+Please contact your system vendor for a BIOS/firmware update that contains
+the latest microcode version.  For the information regarding microcode versions
+required for mitigating specific side-channel cache attacks, please refer
+to the following knowledge base articles:
+ * CVE-2017-5715 ("Spectre"):
+   https://access.redhat.com/articles/3436091
+ * CVE-2018-3639 ("Speculative Store Bypass"):
+   https://access.redhat.com/articles/3540901
+ * CVE-2018-3620, CVE-2018-3646 ("L1 Terminal Fault Attack"):
+   https://access.redhat.com/articles/3562741
+ * CVE-2018-12130, CVE-2018-12126, CVE-2018-12127, and CVE-2019-11091
+   ("Microarchitectural Data Sampling"):
+   https://access.redhat.com/articles/4138151
+ * CVE-2019-0117 (Intel SGX Information Leak),
+   CVE-2019-0123 (Intel SGX Privilege Escalation),
+   CVE-2019-11135 (TSX Asynchronous Abort),
+   CVE-2019-11139 (Voltage Setting Modulation):
+   https://access.redhat.com/solutions/2019-microcode-nov
+ * CVE-2020-0543 (Special Register Buffer Data Sampling),
+   CVE-2020-0548 (Vector Register Data Sampling),
+   CVE-2020-0549 (L1D Cache Eviction Sampling):
+   https://access.redhat.com/solutions/5142751
+ * CVE-2020-8695 (Information disclosure issue in Intel SGX via RAPL interface),
+   CVE-2020-8696 (Vector Register Leakage-Active),
+   CVE-2020-8698 (Fast Forward Store Predictor):
+   https://access.redhat.com/articles/5569051
+ * CVE-2020-24489 (VT-d-related Privilege Escalation),
+   CVE-2020-24511 (Improper Isolation of Shared Resources),
+   CVE-2020-24512 (Observable Timing Discrepancy),
+   CVE-2020-24513 (Information Disclosure on Some Intel Atom Processors):
+   https://access.redhat.com/articles/6101171
+ * CVE-2021-0127 (Intel Processor Breakpoint Control Flow):
+   https://access.redhat.com/articles/6716541
+ * CVE-2022-0005 (Informational disclosure via JTAG),
+   CVE-2022-21123 (Shared Buffers Data Read),
+   CVE-2022-21125 (Shared Buffers Data Sampling),
+   CVE-2022-21127 (Update to Special Register Buffer Data Sampling),
+   CVE-2022-21151 (Optimization Removal-Induced Informational Disclosure),
+   CVE-2022-21166 (Device Register Partial Write):
+   https://access.redhat.com/articles/6963124
+
+The information regarding disabling microcode update is provided below.
+
+To disable usage of the newer microcode revision for a specific kernel
+version, please create a file "disallow-intel-06-8e-9e-0x-dell" inside
+/lib/firmware/<kernel_version> directory, run
+"/usr/libexec/microcode_ctl/update_ucode" to update firmware directory
+used for late microcode updates, and run "dracut -f --kver <kernel_version>"
+so initramfs for this kernel version is regenerated, for example:
+
+    touch /lib/firmware/3.10.0-862.9.1/disallow-intel-06-8e-9e-0x-dell
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --kver 3.10.0-862.9.1
+
+To disable usage of the newer microcode revision for all kernels, please create
+file "/etc/microcode_ctl/ucode_with_caveats/disallow-intel-06-8e-9e-0x-dell",
+run "/usr/libexec/microcode_ctl/update_ucode" to update firmware directories
+used for late microcode updates, and run "dracut -f --regenerate-all"
+so initramfs images get regenerated, for example:
+
+    mkdir -p /etc/microcode_ctl/ucode_with_caveats
+    touch /etc/microcode_ctl/ucode_with_caveats/disallow-intel-06-8e-9e-dell
+    /usr/libexec/microcode_ctl/update_ucode
+    dracut -f --regenerate-all
+
+Please refer to /usr/share/doc/microcode_ctl/README.caveats for additional
+information.
--- a/SOURCES/README.caveats
+++ b/SOURCES/README.caveats
@ -651,6 +651,178 @@ Minimum versions of the kernel package that contain the fix:
 - RHEL 7.2: 3.10.0-327.73.1


+Intel Sandy Bridge-E/EN/EP caveat
+---------------------------------
+Microcode revision 0x718 for Intel Sandy Bridge-E/EN/EP (SNB-EP, family 6,
+model 45, stepping 7), that was released to address MDS vulnerability,
+and was available from microcode-20190618 up to microcode-20190508 release)
+could lead to system instability[1][2].  In order to address this,
+this microcode update was not used and the previous microcode revision
+was provided instead by default; the microcode file, however, was still shipped
+as part of microcode_ctl package and could be used for performing a microcode
+update if it is enforced via the aforementioned overrides.  With the release
+of 0x71a revision of the microcode (as art of microcode-20200520 release)
+that aims at fixing the aforementioned stability issue, the latest microcode
+revision is again used by default; it is still provided via the caveat
+mechanism, hovewer, in order to enable ability to disable it in case such
+a need arises.  (See the sections "check_caveats script" and "reload_microcode
+script" for details regarding caveats mechanism operation.)
+
+[1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/15
+[2] https://access.redhat.com/solutions/4593951
+
+Caveat name: intel-06-2d-07
+
+Affected microcode: intel-ucode/06-2d-07.
+
+Dependencies: intel
+
+Mitigation: None; the latest revision of the microcode file is used by default;
+previously published microcode revision 0x714 is still available as a fallback
+as part of "intel" caveat.
+
+
+Intel Skylake-SP/W/X caveat
+---------------------------
+Microcode revision 0x2000065 (that was provided with microcode releases
+microcode-20191112 up to microcode-20200520) for some CPU models that belong
+to Intel Skylake Scalable Platform (SKL-W/X, family 6, model 85, stepping 4,
+Workstation/HEDT segments) could lead to hangs during reboot[1].  In order
+to address this, by default this microcode update was disabled by default and
+and the previous 0x2000064 microcode revision was used instead; the microcode
+file with, however, is still shipped as part of microcode_ctl package and can
+be used for performing a microcode update if it is enforced
+via the aforementioned overrides. With the availability of 0x2006906 revision
+of the microcode (in the microcode-20200609 release) that fixes
+the aforementioned issue, the latest microcode revision is again used
+by default; it is still provided via caveat mechanism, hovewer, in order
+to enable ability to disable it in case such a need arises.  (See the sections
+"check_caveats script" and "reload_microcode script" for details regarding
+caveats mechanism operation.)
+
+[1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/21
+
+Caveat name: intel-06-55-04
+
+Affected microcode: intel-ucode/06-55-04.
+
+Dependencies: intel
+
+Mitigation: None; the latest revision of the microcode file is used by default;
+previously published microcode revision 0x2000064 is still available
+as a fallback as part of "intel" caveat.
+
+
+Intel Skylake-U/Y caveat
+------------------------
+Some Intel Skylake CPU models (SKL-U/Y, family 6, model 78, stepping 3)
+have reports of system hangs when revision 0xdc of microcode, that is included
+in microcode-20200609 update to address CVE-2020-0543, CVE-2020-0548,
+and CVE-2020-0549, is applied[1].  In order to address this, microcode update
+to the newer revision has been disabled by default on these systems,
+and the previously published microcode revision 0xd6 is used instead; the newer
+microcode files, however, are still shipped as part of microcode_ctl package
+and can be used for performing a microcode update if they are enforced
+via the aforementioned overrides.  (See the sections "check_caveats script"
+and "reload_microcode script" for details.)
+
+[1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/31
+
+Caveat name: intel-06-4e-03
+
+Affected microcode: intel-ucode/06-4e-03
+
+Dependencies: intel
+
+Mitigation: previously published microcode revision 0xd6 is used by default.
+
+
+Intel Skylake-H/S/Xeon E3 v5 caveat
+-----------------------------------
+Some Intel Skylake CPU models (SKL-H/S/Xeon E3 v5, family 6, model 94,
+stepping 3) had reports of system hangs when revision 0xdc of microcode,
+that is included in microcode-20200609 update to address CVE-2020-0543,
+CVE-2020-0548, and CVE-2020-0549, was applied[1].  In order to address this,
+microcode update to the newer revision had been disabled by default on these
+systems, and the previously published microcode revision 0xd6 was used instead.
+The revision 0xea seems[2] to have fixed the aforementioned issue, hence
+the latest microcode revision usage it is enabled by default,
+but can be disabled explicitly via the aforementioned overrides.  (See
+the sections "check_caveats script" and "reload_microcode script" for details.)
+
+[1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/31#issuecomment-644885826
+[2] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/31#issuecomment-857806014
+
+Caveat names: intel-06-5e-03
+
+Affected microcode: intel-ucode/06-5e-03.
+
+Dependencies: intel
+
+Mitigation: None; the latest revision of the microcode file is used by default;
+previously published microcode revision 0xd6 is still available as a fallback
+as part of "intel" caveat.
+
+
+Dell caveats
+------------
+Some Dell systems that use some models of Intel CPUs are susceptible to hangs
+and system instability during or after microcode update to revision 0xc6/0xca
+(included as part of microcode-20191113/microcode-20191115 update that addressed
+CVE-2019-0117, CVE-2019-0123, CVE-2019-11135, and CVE-2019-11139)
+and/or revision 0xd6 (included as part of microcode-20200609 update
+that addressed CVE-2020-0543, CVE-2020-0548, and CVE-2020-0549)
+[1][2][3][4][5][6].  In order to address this, microcode update to the newer
+revision has been disabled by default on these systems, and the previously
+published microcode revisions 0xae/0xb4/0xb8 are used by default
+for the OS-driven microcode update.
+
+[1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/23
+[2] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/24
+[3] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/33
+[4] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/34
+[5] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/35
+[6] https://bugzilla.redhat.com/show_bug.cgi?id=1846097
+
+Caveat names: intel-06-8e-9e-0x-dell, intel-06-8e-9e-0x-0xca
+
+Affected microcode: intel-ucode/06-8e-09, intel-ucode/06-8e-0a,
+                    intel-ucode/06-8e-0b, intel-ucode/06-8e-0c,
+                    intel-ucode/06-9e-09, intel-ucode/06-9e-0a,
+                    intel-ucode/06-9e-0b, intel-ucode/06-9e-0c,
+                    intel-ucode/06-9e-0d.
+
+Dependencies: intel
+
+Mitigation: previously published microcode revision 0xac/0xb4/0xb8 is used
+            by default if /sys/devices/virtual/dmi/id/bios_vendor reports
+	    "Dell Inc."; otherwise, the latest microcode revision is used.
+	    Caveat with revision 0xca of microcode files is provided
+	    as a convenience for the cases where it was working well before.
+
+
+Intel Tiger Lake-UP3/UP4 caveat
+-------------------------------
+Some systems with Intel Tiger Lake-UP3/UP4 CPUs (TGL, family 6, model 140,
+stepping 1) had reports of system hangs when a microcode update,
+that was included since microcode-20201110 release, was applied[1].
+In order to address this, microcode update to a newer revision had been disabled
+by default on these systems.  The revision 0x88 seems to have fixed
+the aforementioned issue, hence it is enabled by default; however, it is still
+can be disabled via the aforementioned overrides.  (See the sections
+"check_caveats script" and "reload_microcode script" for details.)
+
+[1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/44
+
+Caveat names: intel-06-8c-01
+
+Affected microcode: intel-ucode/06-8c-01.
+
+Dependencies: intel
+
+Mitigation: None; the latest revision of the microcode file is used by default.
+
+

 Additional information
 ======================
--- a/SPECS/microcode_ctl.spec
+++ b/SPECS/microcode_ctl.spec