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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)
committerBorislav Petkov <bp@suse.de>
Fri, 20 Mar 2020 10:28:47 +0000 (11:28 +0100)
commit630b99ab60aa972052a4202a1ff96c7e45eb0054
tree0ad144a21cf62829ae39c29d741258bfc4d14977tree | snapshot
parent07f24dc95daca49b8a2e804edc024dd4e91610accommit | diff
selftests/x86/ptrace_syscall_32: Fix no-vDSO segfault

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
tools/testing/selftests/x86/ptrace_syscall.c diff | blob | history
https://github.com/torvalds/linux.git