RFC mm/damon/{reclaim,lru_sort}: handle ctx allocation failures
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- v1 RFC Latest2 patches 2 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | mm/damon/reclaim: handle ctx allocation failuremm/ | +4 | 1 reply | |
| 2/2 | mm/damonn/lru_sort: handle ctx allocation failuremm/ | +4 | 1 reply |
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Cover letter [RFC PATCH 0/2] mm/damon/{reclaim,lru_sort}: handle ctx allocation failures
DAMON_RECLAIM and DAMON_LRU_SORT could dereference NULL pointers if their damon_ctx object allocations fail. The bug is expected to happen not frequently,, because the allocation is arguably too small to fail on common setup. But theoretically it is possible and the consequence is bad. Fix those.
The issue was discovered [1] by Sashiko.
[1] https://lore.kernel.org/[email protected]
SeongJae Park (2):
mm/damon/reclaim: handle ctx allocation failure mm/damonn/lru_sort: handle ctx allocation failure
mm/damon/lru_sort.c | 4 ++++ mm/damon/reclaim.c | 4 ++++ 2 files changed, 8 insertions(+)
base-commit: 3c18aac8c775b020a2c50e91051f106dc621ad3e
Signature · 1 line
2.47.3