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selftests/x86/ptrace_syscall_32: Fix no-vDSO segfault
authorAndy Lutomirski <luto@kernel.org>
Thu, 12 Mar 2020 22:35:51 +0000 (15:35 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 24 Apr 2020 06:00:27 +0000 (08:00 +0200)
commitd012deee1cb9501a899bdf0387dafcdcbe9dfbea
tree5e0ea0e207b742c4ebaefa4d26cd6f4484f7de3dtree | snapshot
parent964a86d29150870d22b70f72c02a13d01cca909acommit | diff
selftests/x86/ptrace_syscall_32: Fix no-vDSO segfault

[ Upstream commit 630b99ab60aa972052a4202a1ff96c7e45eb0054 ]

If AT_SYSINFO is not present, don't try to call a NULL pointer.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/faaf688265a7e1a5b944d6f8bc0f6368158306d3.1584052409.git.luto@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
tools/testing/selftests/x86/ptrace_syscall.c diff | blob | blame | history
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