CVE-2026-80881
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)
ocfs2: fix buffer head management in ocfs2_read_blocks()
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix buffer head management in ocfs2_read_blocks() In ocfs2_read_blocks(), caller should't assume that buffer head returned by 'sb_getblk()' is exclusively owned and so 'put_bh()' always drops b_count from 1 to 0. If it is not so, buffer head remains on hold and likely to be returned by the next call to 'sb_getblk()' unchanged - that is, with BH_Uptodate bit set even if it has failed validation previously, thus allowing to insert that buffer head into OCFS2 metadata cache and submit it to upper layers. To avoid such a scenario, BH_Uptodate should be cleared immediately after 'validate()' callback has detected some data inconsistency.
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) |
|---|---|---|---|---|---|
| cf76c78595ca87548ca5e45c862ac9e0949c4687 | affected | git | a4eae1499c760949a93459d11390bd1fd823d31d | Unavailable | None listed |
| cf76c78595ca87548ca5e45c862ac9e0949c4687 | affected | git | 4ab17e328522a4df5fe0f0dcf39098118b1feeaa | Unavailable | None listed |
| cf76c78595ca87548ca5e45c862ac9e0949c4687 | affected | git | 5927acb3e2c99985a14adecd9d1b67ba191c622d | Unavailable | None listed |
| cf76c78595ca87548ca5e45c862ac9e0949c4687 | affected | git | ecb3f9386f4353034caef77239473c627232db17 | Unavailable | None listed |
| cf76c78595ca87548ca5e45c862ac9e0949c4687 | affected | git | 61f7a5acb3bf8fc97dad78f54b1e8d0e1c819766 | Unavailable | None listed |
| cf76c78595ca87548ca5e45c862ac9e0949c4687 | affected | git | 0e389fc290c350c67591abf4c367119f4689f310 | Unavailable | None listed |
| cf76c78595ca87548ca5e45c862ac9e0949c4687 | affected | git | 9e7a057934cdd58e4cc94350bcfe5367bbee0f8e | Unavailable | None listed |
| cf76c78595ca87548ca5e45c862ac9e0949c4687 | affected | git | 6371a07148ee979af22a9d6f4c277462953a9a4a | Unavailable | None listed |
| 01f93d5e36753fc4d06ec67f05ce78c9c6f2dd56 | affected | git | Unavailable | Unavailable | None listed |
| 65cbd1279f4b999d56a838344a30642db24cd215 | affected | git | Unavailable | Unavailable | None listed |
| 97e1db17bc1ef4c2e1789bc9323c7be44fba53f8 | affected | git | Unavailable | Unavailable | None listed |
| 6c150df9c2e80b5cf86f5a0d98beb7390ad63bfc | affected | git | Unavailable | Unavailable | None listed |
| 4.4.204 | affected | semver | 4.5 | Unavailable | None listed |
| 4.9.204 | affected | semver | 4.10 | Unavailable | None listed |
| 4.14.157 | affected | semver | 4.15 | Unavailable | None listed |
| 4.19.87 | affected | semver | 4.20 | 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) |
|---|---|---|---|---|---|
| 4.20 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.20 | Unavailable | None listed |
| 5.10.261 | 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 |