CVE-2026-72225
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
jbd2: fix integer underflow in jbd2_journal_initialize_fast_commit()
In the Linux kernel, the following vulnerability has been resolved: jbd2: fix integer underflow in jbd2_journal_initialize_fast_commit() jbd2_journal_initialize_fast_commit() validates journal capacity by checking (journal->j_last - num_fc_blks < JBD2_MIN_JOURNAL_BLOCKS). Both j_last and num_fc_blks are unsigned, so when num_fc_blks exceeds j_last the subtraction wraps to a large value, bypassing the bounds check. The resulting underflow corrupts j_last, j_fc_first, and j_free, leading to journal abort. Fix by checking num_fc_blks against j_last before the subtraction, returning -EFSCORRUPTED.
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) |
|---|---|---|---|---|---|
| 6866d7b3f2bb4f011041ba54c98b1584497fe2fd | affected | git | aa90f00932bf572d6ef284c977c2a60b39c13bd6 | Unavailable | None listed |
| 6866d7b3f2bb4f011041ba54c98b1584497fe2fd | affected | git | e144ad0250f77e23e28949587b8b57e40dc3b512 | Unavailable | None listed |
| 6866d7b3f2bb4f011041ba54c98b1584497fe2fd | affected | git | 4b48dcb88bb9117e3d3f051175a9a8b7cff7f8b6 | Unavailable | None listed |
| 6866d7b3f2bb4f011041ba54c98b1584497fe2fd | affected | git | fb9b49618ed7296ebfad62a3835da8945f727001 | Unavailable | None listed |
| 6866d7b3f2bb4f011041ba54c98b1584497fe2fd | affected | git | 4450dcaadf7d4aae8b6e4223b5d6ee4eb77097a9 | Unavailable | None listed |
| 6866d7b3f2bb4f011041ba54c98b1584497fe2fd | affected | git | 78955fdce8ff654e6d33a2fa90882a1e7eb26330 | Unavailable | None listed |
| 6866d7b3f2bb4f011041ba54c98b1584497fe2fd | affected | git | a58fc10adf503969fec2007b5afe8987258046c4 | Unavailable | None listed |
| 6866d7b3f2bb4f011041ba54c98b1584497fe2fd | affected | git | 289a2ca0c9b7eae74f93fc213b0b971669b8683d | 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) |
|---|---|---|---|---|---|
| 5.10 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.10 | Unavailable | None listed |
| 5.10.266 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.212 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.178 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |