cve-2024-41033
Vulnerability from cvelistv5
Published
2024-07-29 14:31
Modified
2024-12-19 09:10
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: cachestat: do not flush stats in recency check syzbot detects that cachestat() is flushing stats, which can sleep, in its RCU read section (see [1]). This is done in the workingset_test_recent() step (which checks if the folio's eviction is recent). Move the stat flushing step to before the RCU read section of cachestat, and skip stat flushing during the recency check. [1]: https://lore.kernel.org/cgroups/000000000000f71227061bdf97e0@google.com/
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1d1ba14e00d290b1ed616ed78c8c49bf897ce390
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5a4d8944d6b1e1aaaa83ea42c116b520b4ed0394
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1d1ba14e00d290b1ed616ed78c8c49bf897ce390
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5a4d8944d6b1e1aaaa83ea42c116b520b4ed0394
Impacted products
Vendor Product Version
Linux Linux Version: b006847222623ac3cda8589d15379eac86a2bcb7
Version: b006847222623ac3cda8589d15379eac86a2bcb7
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   Linux Linux Version: 6.8
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