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55 lines
2.0 KiB
55 lines
2.0 KiB
1 year ago
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From 2bfd1db9c3efcf7b73790565b4f8597bc04762c2 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= <clg@redhat.com>
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Date: Tue, 23 May 2023 12:34:33 +0200
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Subject: [PATCH 13/22] target/s390x: Fix the accumulation of ccm in op_icm
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Cédric Le Goater <clg@redhat.com>
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RH-MergeRequest: 279: Backport latest s390x-related fixes from upstream QEMU for qemu-kvm in RHEL 8.9
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RH-Bugzilla: 2169308 2209605
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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RH-Acked-by: David Hildenbrand <david@redhat.com>
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RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
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RH-Commit: [12/21] ad52141b1d733a34d392b72d9962ea7ac521dc17
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Bugzilla: https://bugzilla.redhat.com/2169308
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commit 21641ee5a9b31568c990c7fc949eeb9bcd0f6a0f
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Author: Richard Henderson <richard.henderson@linaro.org>
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Date: Fri Apr 1 13:36:59 2022 -0600
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target/s390x: Fix the accumulation of ccm in op_icm
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Coverity rightly reports that 0xff << pos can overflow.
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This would affect the ICMH instruction.
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Fixes: Coverity CID 1487161
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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Reviewed-by: David Hildenbrand <david@redhat.com>
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Reviewed-by: Thomas Huth <thuth@redhat.com>
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Message-Id: <20220401193659.332079-1-richard.henderson@linaro.org>
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Signed-off-by: Cédric Le Goater <clg@redhat.com>
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---
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target/s390x/tcg/translate.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c
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index 7ff7f90e23..75f0418c10 100644
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--- a/target/s390x/tcg/translate.c
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+++ b/target/s390x/tcg/translate.c
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@@ -2592,7 +2592,7 @@ static DisasJumpType op_icm(DisasContext *s, DisasOps *o)
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tcg_gen_qemu_ld8u(tmp, o->in2, get_mem_index(s));
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tcg_gen_addi_i64(o->in2, o->in2, 1);
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tcg_gen_deposit_i64(o->out, o->out, tmp, pos, 8);
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- ccm |= 0xff << pos;
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+ ccm |= 0xffull << pos;
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}
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m3 = (m3 << 1) & 0xf;
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pos -= 8;
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--
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2.37.3
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