gsd - gsd-2021-47254

GSD-2021-47254

Vulnerability from gsd - Updated: 2024-04-11 05:05

Details

** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.

Aliases

CVE-2021-47254

JSON

To clipboard

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      "remediation": "unknown",
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CVE-2021-47254 (GCVE-0-2021-47254)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:19 – Updated: 2025-05-21 08:31

Summary

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix use-after-free in gfs2_glock_shrink_scan The GLF_LRU flag is checked under lru_lock in gfs2_glock_remove_from_lru() to remove the glock from the lru list in __gfs2_glock_put(). On the shrink scan path, the same flag is cleared under lru_lock but because of cond_resched_lock(&lru_lock) in gfs2_dispose_glock_lru(), progress on the put side can be made without deleting the glock from the lru list. Keep GLF_LRU across the race window opened by cond_resched_lock(&lru_lock) to ensure correct behavior on both sides - clear GLF_LRU after list_del under lru_lock.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/38ce329534500bf4a…
	https://git.kernel.org/stable/c/92869945cc5b78ee8…
	https://git.kernel.org/stable/c/0364742decb0f02bc…
	https://git.kernel.org/stable/c/094bf5670e762afa2…
	https://git.kernel.org/stable/c/86fd5b27db743a0ce…
	https://git.kernel.org/stable/c/a61156314b66456ab…
	https://git.kernel.org/stable/c/e87ef30fe73e7e10d…
	https://git.kernel.org/stable/c/1ab19c5de4c537ec0…

Impacted products

Vendor

Product

Version

Linux

Affected: 6948c6bc17d666663a84c124b3176039e64a58f4 , < 38ce329534500bf4ae71f81df6a37a406cf187b4 (git)
Affected: b568ed385a18c0ddbe41862b69088b636550a04f , < 92869945cc5b78ee8a1ef90336fe070893e3458a (git)
Affected: 762bb3528249604bc680a9df635e8995740176de , < 0364742decb0f02bc183404868b82896f7992595 (git)
Affected: bac8520892812dada1ac93f27d96317470d24b1f , < 094bf5670e762afa243d2c41a5c4ab71c7447bf4 (git)
Affected: 7881ef3f33bb80f459ea6020d1e021fc524a6348 , < 86fd5b27db743a0ce0cc245e3a34813b2aa6ec1d (git)
Affected: 7881ef3f33bb80f459ea6020d1e021fc524a6348 , < a61156314b66456ab6a291ed5deba1ebd002ab3c (git)
Affected: 7881ef3f33bb80f459ea6020d1e021fc524a6348 , < e87ef30fe73e7e10d2c85bdcc778dcec24dca553 (git)
Affected: 7881ef3f33bb80f459ea6020d1e021fc524a6348 , < 1ab19c5de4c537ec0d9b21020395a5b5a6c059b2 (git)
Affected: 1e7a416fb765c9072479dc424780c0937ba99270 (git)
Affected: dcbdbe13796ffa561510d2686a6318564e728bbd (git)

Linux

Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 4.4.274 , ≤ 4.4.* (semver)
Unaffected: 4.9.274 , ≤ 4.9.* (semver)
Unaffected: 4.14.238 , ≤ 4.14.* (semver)
Unaffected: 4.19.196 , ≤ 4.19.* (semver)
Unaffected: 5.4.127 , ≤ 5.4.* (semver)
Unaffected: 5.10.45 , ≤ 5.10.* (semver)
Unaffected: 5.12.12 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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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

GSD-2021-47254

CVE-2021-47254 (GCVE-0-2021-47254)

Tags

Sightings

Nomenclature