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| author | Jiang Biao <[email protected]> | 2018-07-20 08:06:32 +0800 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2018-07-20 07:07:39 +0200 |
| commit | 8c934e01a7ce685d98e970880f5941d79272c654 (patch) | |
| tree | 31d28a6c15860b60aecd2c30d1c0098c3b98ff13 /tools/perf/util/trace-event-scripting.c | |
| parent | b2b7d986a89b6c94b1331a909de1217214fb08c1 (diff) | |
x86/pti: Check the return value of pti_user_pagetable_walk_pmd()
pti_user_pagetable_walk_pmd() can return NULL, so the return value should
be checked to prevent a NULL pointer dereference.
Add the check and a warning when the PMD allocation fails.
Signed-off-by: Jiang Biao <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions