f2fs: fix to shrink read extent node in batches

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-41935
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-01-11 13:15:21 UTC
Updated2026-10-30 13:17:31 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: f2fs: fix to shrink read extent node in batches We use rwlock to protect core structure data of extent tree during its shrink, however, if there is a huge number of extent nodes in extent tree, during shrink of extent tree, it may hold rwlock for a very long time, which may trigger kernel hang issue. This patch fixes to shrink read extent node in batches, so that, critical region of the rwlock can be shrunk to avoid its extreme long time hold.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

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

Problem Types: CWE-125

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 e05d3eab90d6657bdcaa40ed129e9c767ed43188 git Not specified
CNA Linux Linux affected 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 295b50e95e900da31ff237e46e04525fa799b2cf git Not specified
CNA Linux Linux affected 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 924f7dd1e832e4e4530d14711db223d2803f7b61 git Not specified
CNA Linux Linux affected 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 3fc5d5a182f6a1f8bd4dc775feb54c369dd2c343 git Not specified
CNA Linux Linux affected 3.8 Not specified
CNA Linux Linux unaffected 3.8 semver Not specified
CNA Linux Linux unaffected 6.1.191 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.66 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.5 6.12.* semver Not specified
CNA Linux Linux unaffected 6.13 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/3fc5d5a182f6a1f8bd4dc775feb54c369dd2c343 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/295b50e95e900da31ff237e46e04525fa799b2cf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/924f7dd1e832e4e4530d14711db223d2803f7b61 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e05d3eab90d6657bdcaa40ed129e9c767ed43188 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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