CVE-2024-40951
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)
ocfs2: fix NULL pointer dereference in ocfs2_abort_trigger()
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix NULL pointer dereference in ocfs2_abort_trigger() bdev->bd_super has been removed and commit 8887b94d9322 change the usage from bdev->bd_super to b_assoc_map->host->i_sb. Since ocfs2 hasn't set bh->b_assoc_map, it will trigger NULL pointer dereference when calling into ocfs2_abort_trigger(). Actually this was pointed out in history, see commit 74e364ad1b13. But I've made a mistake when reviewing commit 8887b94d9322 and then re-introduce this regression. Since we cannot revive bdev in buffer head, so fix this issue by initializing all types of ocfs2 triggers when fill super, and then get the specific ocfs2 trigger from ocfs2_caching_info when access journal. [joseph.qi@linux.alibaba.com: v2]
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) |
|---|---|---|---|---|---|
| 8887b94d93224e0ef7e1bc6369640e313b8b12f4 | affected | git | 67bcecd780609f471260a8c83fb0ae15f27734ce | Unavailable | None listed |
| 8887b94d93224e0ef7e1bc6369640e313b8b12f4 | affected | git | eb63357ef229fae061ce7ce2839d558681c42f1a | Unavailable | None listed |
| 8887b94d93224e0ef7e1bc6369640e313b8b12f4 | affected | git | 685d03c3795378fca6a1b3d43581f7f1a3fc095f | 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) |
|---|---|---|---|---|---|
| 6.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.6 | Unavailable | None listed |
| 6.6.36 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.9.7 | unaffected | semver | Unavailable | 6.9.* | None listed |
| 6.10 | unaffected | original_commit_for_fix | Unavailable | * | None listed |