linux-uconsole/tools/testing
Andy Lutomirski 8caa016bfc selftests/x86/mov_ss_trap: Fix the SYSENTER test
For reasons that I haven't quite fully diagnosed, running
mov_ss_trap_32 on a 32-bit kernel results in an infinite loop in
userspace.  This appears to be because the hacky SYSENTER test
doesn't segfault as desired; instead it corrupts the program state
such that it infinite loops.

Fix it by explicitly clearing EBP before doing SYSENTER.  This will
give a more reliable segfault.

Fixes: 59c2a7226f ("x86/selftests: Add mov_to_ss test")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@kernel.org
2019-11-21 21:55:51 +01:00
..
fault-injection docs: fault-injection: convert docs to ReST and rename to *.rst 2019-06-14 14:21:07 -06:00
ktest ktest: Fix some typos in config-bisect.pl 2019-07-24 15:37:18 -04:00
nvdimm libnvdimm fixes v5.4-rc1 2019-09-29 10:33:41 -07:00
radix-tree Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-08 15:45:14 -07:00
scatterlist treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
selftests selftests/x86/mov_ss_trap: Fix the SYSENTER test 2019-11-21 21:55:51 +01:00
vsock treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00