CVE-2024-41020
filelock: Fix fcntl/close race recovery compat path
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Description
In the Linux kernel, the following vulnerability has been resolved: filelock: Fix fcntl/close race recovery compat path When I wrote commit 3cad1bc01041 ("filelock: Remove locks reliably when fcntl/close race is detected"), I missed that there are two copies of the code I was patching: The normal version, and the version for 64-bit offsets on 32-bit kernels. Thanks to Greg KH for stumbling over this while doing the stable backport... Apply exactly the same fix to the compat path for 32-bit kernels.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/4c43ad4ab41602201d34c66ac62130fe339d686f
- https://git.kernel.org/stable/c/53e21cfa68a7d12de378b7116c75571f73e0dfa2
- https://git.kernel.org/stable/c/5b0af8e4c70e4b884bb94ff5f0cd49ecf1273c02
- https://git.kernel.org/stable/c/73ae349534ebc377328e7d21891e589626c6e82c
- https://git.kernel.org/stable/c/911cc83e56a2de5a40758766c6a70d6998248860
References (10)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- HIGH
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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