https://github.com/torvalds/linux
Revision ae636ae2bbfd9279f5681dbf320d1da817e52b68 authored by SeongJae Park on 06 November 2023, 23:34:08 UTC, committed by Andrew Morton on 15 November 2023, 23:30:09 UTC
DAMON sysfs interface's before_damos_apply callback
(damon_sysfs_before_damos_apply()), which creates the DAMOS tried regions
for each DAMOS action applied region, is not handling the allocation
failure for the sysfs directory data. As a result, NULL pointer
derefeence is possible. Fix it by handling the case.
Link: https://lkml.kernel.org/r/20231106233408.51159-4-sj@kernel.org
Fixes: f1d13cacabe1 ("mm/damon/sysfs: implement DAMOS tried regions update command")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org> [6.2+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Tip revision: ae636ae2bbfd9279f5681dbf320d1da817e52b68 authored by SeongJae Park on 06 November 2023, 23:34:08 UTC
mm/damon/sysfs-schemes: handle tried region directory allocation failure
mm/damon/sysfs-schemes: handle tried region directory allocation failure
Tip revision: ae636ae
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | -rw-r--r-- | 20.1 KB |
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 151 bytes |
| .gitattributes | -rw-r--r-- | 105 bytes |
| .gitignore | -rw-r--r-- | 2.0 KB |
| .mailmap | -rw-r--r-- | 35.9 KB |
| .rustfmt.toml | -rw-r--r-- | 369 bytes |
| COPYING | -rw-r--r-- | 496 bytes |
| CREDITS | -rw-r--r-- | 100.0 KB |
| Kbuild | -rw-r--r-- | 2.5 KB |
| Kconfig | -rw-r--r-- | 555 bytes |
| MAINTAINERS | -rw-r--r-- | 716.8 KB |
| Makefile | -rw-r--r-- | 65.7 KB |
| README | -rw-r--r-- | 727 bytes |
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