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alistair23-linux/tools/testing/selftests/x86
Andy Lutomirski 75434bcc65 selftests/x86/ptrace_syscall_32: Fix no-vDSO segfault
[ Upstream commit 630b99ab60 ]

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>
2020-04-17 10:50:02 +02:00
..
.gitignore selftests: x86: add missing executables to .gitignore 2017-05-03 10:55:20 -06:00
Makefile Merge branch 'x86-entry-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-16 19:06:29 -07:00
check_cc.sh treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 257 2019-06-05 17:30:27 +02:00
check_initial_reg_state.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
entry_from_vm86.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 257 2019-06-05 17:30:27 +02:00
fsgsbase.c Revert "x86/ptrace: Prevent ptrace from clearing the FS/GS selector" and fix the test 2019-07-15 17:12:31 +02:00
ioperm.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
iopl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ldt_gdt.c x86/ldt: Make the LDT mapping RO 2017-12-23 21:13:01 +01:00
mov_ss_trap.c selftests/x86/mov_ss_trap: Fix the SYSENTER test 2019-11-29 10:09:58 +01:00
pkey-helpers.h x86/pkeys/selftests: Avoid printf-in-signal deadlocks 2018-05-14 11:14:45 +02:00
protection_keys.c docs: move protection-keys.rst to the core-api book 2019-06-08 13:42:12 -06:00
ptrace_syscall.c selftests/x86/ptrace_syscall_32: Fix no-vDSO segfault 2020-04-17 10:50:02 +02:00
raw_syscall_helper_32.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sigreturn.c selftests/x86/sigreturn/32: Invalidate DS and ES when abusing the kernel 2019-11-29 10:09:59 +01:00
single_step_syscall.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
syscall_arg_fault.c selftests/x86: Test SYSCALL and SYSENTER manually with TF set 2019-07-02 08:45:20 +02:00
syscall_nt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
syscall_numbering.c x86/syscalls: Split the x32 syscalls into their own table 2019-07-22 10:31:23 +02:00
sysret_rip.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
sysret_ss_attrs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
test_FCMOV.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
test_FCOMI.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
test_FISTTP.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
test_mremap_vdso.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
test_syscall_vdso.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
test_vdso.c x86/vdso: Fix vDSO syscall fallback asm constraint regression 2018-10-04 08:17:50 +02:00
test_vsyscall.c selftests/x86: fix spelling mistake "FAILT" -> "FAIL" 2019-07-23 10:45:15 -06:00
thunks.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
thunks_32.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
trivial_32bit_program.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 257 2019-06-05 17:30:27 +02:00
trivial_64bit_program.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 257 2019-06-05 17:30:27 +02:00
trivial_program.c selftests/x86: Detect -no-pie availability 2018-05-30 15:21:51 -06:00
unwind_vdso.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
vdso_restorer.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00