github - ghsa-p349-g4hw-9cvj

GHSA-P349-G4HW-9CVJ

Vulnerability from github – Published: 2024-07-29 15:30 – Updated: 2025-11-24 12:30

Details

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.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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  "affected": [],
  "aliases": [
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    "cwe_ids": [],
    "github_reviewed": false,
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    "severity": "MODERATE"
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  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachestat: do not flush stats in recency check\n\nsyzbot detects that cachestat() is flushing stats, which can sleep, in its\nRCU read section (see [1]).  This is done in the workingset_test_recent()\nstep (which checks if the folio\u0027s eviction is recent).\n\nMove the stat flushing step to before the RCU read section of cachestat,\nand skip stat flushing during the recency check.\n\n[1]: https://lore.kernel.org/cgroups/000000000000f71227061bdf97e0@google.com/",
  "id": "GHSA-p349-g4hw-9cvj",
  "modified": "2025-11-24T12:30:27Z",
  "published": "2024-07-29T15:30:40Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41033"
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      "type": "WEB",
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  "severity": [
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      "type": "CVSS_V3"
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}

CVE-2024-41033 (GCVE-0-2024-41033)

Vulnerability from cvelistv5 – Published: 2024-07-29 14:31 – Updated: 2025-11-24 09:49

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/

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/e2f7c76758be16f1d…
	https://git.kernel.org/stable/c/1d1ba14e00d290b1e…
	https://git.kernel.org/stable/c/5a4d8944d6b1e1aaa…

Impacted products

Vendor

Product

Version

Linux

Affected: 68849411ce9eb55d00cef48504dcb35baca4b37e , < e2f7c76758be16f1dc32c5a82270d4f6649eedab (git)
Affected: b006847222623ac3cda8589d15379eac86a2bcb7 , < 1d1ba14e00d290b1ed616ed78c8c49bf897ce390 (git)
Affected: b006847222623ac3cda8589d15379eac86a2bcb7 , < 5a4d8944d6b1e1aaaa83ea42c116b520b4ed0394 (git)

Linux

Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.9.10 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-P349-G4HW-9CVJ

CVE-2024-41033 (GCVE-0-2024-41033)

Tags

Sightings

Nomenclature