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)
commit1b9abd1755ad947d7c9913e92e7837b533124c90
treea04325127afd133ba6e954743fc7a8d407f86d4a
parentab2dd173330a3f07142e68cd65682205036cd00f
selftests/x86/fsgsbase: Test PTRACE_PEEKUSER for GSBASE with invalid LDT GS

This tests commit:

  8ab49526b53d ("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