diff options
| author | Jianqun Xu <[email protected]> | 2020-08-11 18:31:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2020-08-12 10:57:57 -0700 |
| commit | 835832ba01bb444c7e45139e4b807527c119dafc (patch) | |
| tree | 70fa999aa9337310c37ba78629cb5351f2019772 /tools/perf/scripts/python | |
| parent | 1a5bae25e3cf95c4e83a97f87a6b5280d9acbb22 (diff) | |
mm/cma.c: fix NULL pointer dereference when cma could not be activated
In some case the cma area could not be activated, but the cma_alloc be
used under this case, then the kernel will crash caused by NULL pointer
dereference.
Add bitmap valid check in cma_alloc to avoid this issue.
Signed-off-by: Jianqun Xu <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-by: David Hildenbrand <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions