CVE-2024-33847
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2024
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
f2fs: compress: don't allow unaligned truncation on released compress inode
In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: don't allow unaligned truncation on released compress inode f2fs image may be corrupted after below testcase: - mkfs.f2fs -O extra_attr,compression -f /dev/vdb - mount /dev/vdb /mnt/f2fs - touch /mnt/f2fs/file - f2fs_io setflags compression /mnt/f2fs/file - dd if=/dev/zero of=/mnt/f2fs/file bs=4k count=4 - f2fs_io release_cblocks /mnt/f2fs/file - truncate -s 8192 /mnt/f2fs/file - umount /mnt/f2fs - fsck.f2fs /dev/vdb [ASSERT] (fsck_chk_inode_blk:1256) --> ino: 0x5 has i_blocks: 0x00000002, but has 0x3 blocks [FSCK] valid_block_count matching with CP [Fail] [0x4, 0x5] [FSCK] other corrupted bugs [Fail] The reason is: partial truncation assume compressed inode has reserved blocks, after partial truncation, valid block count may change w/o .i_blocks and .total_valid_block_count update, result in corruption. This patch only allow cluster size aligned truncation on released compress inode for fixing.
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) |
|---|---|---|---|---|---|
| 8e1651cd667cd6779db28314844d88b6de8312a3 | affected | git | b8962cf98595d1ec62f40f23667de830567ec8bc | Unavailable | None listed |
| c61404153eb683da9c35aad133131554861ed561 | affected | git | 8acae047215024d1ac499b3c8337ef1b952f160b | Unavailable | None listed |
| c61404153eb683da9c35aad133131554861ed561 | affected | git | 3ccf5210dc941a7aa0180596ac021568be4d35ec | Unavailable | None listed |
| c61404153eb683da9c35aad133131554861ed561 | affected | git | 9f9341064a9b5246a32a7fe56b9f80c6f7f3c62d | Unavailable | None listed |
| c61404153eb683da9c35aad133131554861ed561 | affected | git | 5268241b41b1c5d0acca75e9b97d4fd719251c8c | Unavailable | None listed |
| c61404153eb683da9c35aad133131554861ed561 | affected | git | 29ed2b5dd521ce7c5d8466cd70bf0cc9d07afeee | 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) |
|---|---|---|---|---|---|
| 5.14 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.14 | Unavailable | None listed |
| 5.15.161 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.93 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.33 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.9.4 | unaffected | semver | Unavailable | 6.9.* | None listed |
| 6.10 | unaffected | original_commit_for_fix | Unavailable | * | None listed |