CVE-2025-38579
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
f2fs: fix KMSAN uninit-value in extent_info usage
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix KMSAN uninit-value in extent_info usage KMSAN reported a use of uninitialized value in `__is_extent_mergeable()` and `__is_back_mergeable()` via the read extent tree path. The root cause is that `get_read_extent_info()` only initializes three fields (`fofs`, `blk`, `len`) of `struct extent_info`, leaving the remaining fields uninitialized. This leads to undefined behavior when those fields are accessed later, especially during extent merging. Fix it by zero-initializing the `extent_info` struct before population.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 94afd6d6e5253179c9b891d02081cc8355a11768 | affected | git | 08e8ab00a6d20d5544c932ee85a297d833895141 | Unavailable | None listed |
| 94afd6d6e5253179c9b891d02081cc8355a11768 | affected | git | e68b751ec2b15d866967812c57cfdfc1eba6a269 | Unavailable | None listed |
| 94afd6d6e5253179c9b891d02081cc8355a11768 | affected | git | dabfa3952c8e6bfe6414dbf32e8b6c5f349dc898 | Unavailable | None listed |
| 94afd6d6e5253179c9b891d02081cc8355a11768 | affected | git | 44a79437309e0ee2276ac17aaedc71253af253a8 | Unavailable | None listed |
| 94afd6d6e5253179c9b891d02081cc8355a11768 | affected | git | cc1615d5aba4f396cf412579928539a2b124c8a0 | Unavailable | None listed |
| 94afd6d6e5253179c9b891d02081cc8355a11768 | affected | git | 01b6f5955e0008af6bc3a181310d2744bb349800 | Unavailable | None listed |
| 94afd6d6e5253179c9b891d02081cc8355a11768 | affected | git | 154467f4ad033473e5c903a03e7b9bca7df9a0fa | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.15 | Unavailable | None listed |
| 5.15.190 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.148 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.102 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.42 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.15.10 | unaffected | semver | Unavailable | 6.15.* | None listed |
| 6.16.1 | unaffected | semver | Unavailable | 6.16.* | None listed |
| 6.17 | unaffected | original_commit_for_fix | Unavailable | * | None listed |