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selftests/x86/fsgsbase: Test PTRACE_PEEKUSER for GSBASE with invalid LDT GS
authorAndy Lutomirski <luto@kernel.org>
Wed, 26 Aug 2020 17:00:46 +0000 (10:00 -0700)
committerIngo Molnar <mingo@kernel.org>
Wed, 26 Aug 2020 18:54:18 +0000 (20:54 +0200)
commit2a39eb96a323f0450d71d160fee2d59bcb85a6fb
treea04325127afd133ba6e954743fc7a8d407f86d4atree | snapshot
parent4f94fda1aaff333d9675c922c404ad891003013bcommit | diff
selftests/x86/fsgsbase: Test PTRACE_PEEKUSER for GSBASE with invalid LDT GS

This tests commit:

  54992a39e3cb ("x86/fsgsbase/64: Fix NULL deref in 86_fsgsbase_read_task")

Unpatched kernels will OOPS.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/c618ae86d1f757e01b1a8e79869f553cb88acf9a.1598461151.git.luto@kernel.org
tools/testing/selftests/x86/fsgsbase.c diff | blob | history
Linux Kernel Source Tree.