CVE-2024-27034

f2fs: compress: fix to cover normal cluster write with cp_rwsem

MEDIUM

5.5

CVSS Score

Published: May 1, 2024 at 12:53 PM UTC

Updated: August 5, 2026 at 12:04 PM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to cover normal cluster write with cp_rwsem When we overwrite compressed cluster w/ normal cluster, we should not unlock cp_rwsem during f2fs_write_raw_pages(), otherwise data will be corrupted if partial blocks were persisted before CP & SPOR, due to cluster metadata wasn't updated atomically.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

5.16 ≤ v < 6.1.835.6 ≤ v < 5.15.1535.6 ≤ v < 6.1.835.6 ≤ v < 6.6.235.6 ≤ v < 6.7.115.6 ≤ v < 6.8.25.6 ≤ v < 6.96.2 ≤ v < 6.6.236.7 ≤ v < 6.7.116.8 ≤ v < 6.8.24c8ff7095bef64fc47e996a938f7d57f9e077da35.6

Vendor states this is fixed in 2b1b14d9fc94b8feae20808684c8af28ec80f45b (fixed)

Vendor states this is fixed in 52982edfcefd475cc34af663d5c47c0cddaa5739 (fixed)

Vendor states this is fixed in 542c8b3c774a480bfd0804291a12f6f2391b0cd1 (fixed)

Vendor states this is fixed in 75abfd61392b1db391bde6d738a30d685b843286 (fixed)

Vendor states this is fixed in 7d420eaaa18ec8e2bb4eeab8c65c00492ef6f416 (fixed)

Vendor states this is fixed in fd244524c2cf07b5f4c3fe8abd6a99225c76544b (fixed)

Vendor states this is fixed in 5.15.153 (unaffected)

Vendor states this is fixed in 5.6 (unaffected)

Vendor states this is fixed in 6.1.83 (unaffected)

Vendor states this is fixed in 6.6.23 (unaffected)

Vendor states this is fixed in 6.7.11 (unaffected)

Vendor states this is fixed in 6.8.2 (unaffected)