Bug 2294216 (CVE-2024-34027) - CVE-2024-34027 kernel: f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock
Summary: CVE-2024-34027 kernel: f2fs: compress: fix to cover {reserve,release}_compres...
Keywords:
Status: NEW
Alias: CVE-2024-34027
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
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Depends On:
Blocks: 2294214
TreeView+ depends on / blocked
 
Reported: 2024-06-25 13:28 UTC by Avinash Hanwate
Modified: 2024-09-18 17:59 UTC (History)
5 users (show)

Fixed In Version: kernel 5.10.219, kernel 5.15.161, kernel 6.1.93, kernel 6.6.33, kernel 6.9.4, kernel 6.10-rc1
Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in the Flash-Friendly File System (F2FS) in the Linux kernel, where the reserve_compress_blocks() and release_compress_blocks() functions were not adequately protected by the cp_rwsem lock. This locking deficiency could lead to race conditions, potentially causing data corruption or system instability when multiple processes access these functions concurrently. The issue has been addressed in a kernel update to ensure proper locking and prevent such race conditions.
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Description Avinash Hanwate 2024-06-25 13:28:47 UTC 
In the Linux kernel, the following vulnerability has been resolved:

f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock

The Linux kernel CVE team has assigned CVE-2024-34027 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024062458-CVE-2024-34027-b9ea@gregkh/T
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