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42 lines
1.6 KiB
42 lines
1.6 KiB
1 month ago
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From e9054375028335ef1e2946b80d9765f8e69cbb9c Mon Sep 17 00:00:00 2001
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From: Yu Watanabe <watanabe.yu+github@gmail.com>
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Date: Wed, 14 Dec 2022 13:40:42 +0900
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Subject: [PATCH] sd-id128: also refuse an empty invocation ID
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(cherry picked from commit 75fa1f25c08a4b5dc2180893718473be9e4f6bab)
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Related: RHEL-27512
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---
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man/sd_id128_get_machine.xml | 3 ++-
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src/libsystemd/sd-id128/sd-id128.c | 3 +++
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2 files changed, 5 insertions(+), 1 deletion(-)
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diff --git a/man/sd_id128_get_machine.xml b/man/sd_id128_get_machine.xml
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index 4f6926fd7d..075caffb2b 100644
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--- a/man/sd_id128_get_machine.xml
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+++ b/man/sd_id128_get_machine.xml
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@@ -139,7 +139,8 @@
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<listitem><para>Returned by <function>sd_id128_get_machine()</function> and
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<function>sd_id128_get_machine_app_specific()</function> when <filename>/etc/machine-id</filename>
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- is empty or all zeros.</para></listitem>
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+ is empty or all zeros. Also returned by <function>sd_id128_get_invocation()</function> when the
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+ invocation ID is all zeros.</para></listitem>
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</varlistentry>
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<varlistentry>
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diff --git a/src/libsystemd/sd-id128/sd-id128.c b/src/libsystemd/sd-id128/sd-id128.c
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index dee0df2396..ec53617fce 100644
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--- a/src/libsystemd/sd-id128/sd-id128.c
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+++ b/src/libsystemd/sd-id128/sd-id128.c
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@@ -285,6 +285,9 @@ _public_ int sd_id128_get_invocation(sd_id128_t *ret) {
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r = get_invocation_from_keyring(&saved_invocation_id);
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if (r < 0)
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return r;
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+
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+ if (sd_id128_is_null(saved_invocation_id))
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+ return -ENOMEDIUM;
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}
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if (ret)
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