CVE-2024-49957
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-ptr-deref when journal load failed.
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix null-ptr-deref when journal load failed. During the mounting process, if journal_reset() fails because of too short journal, then lead to jbd2_journal_load() fails with NULL j_sb_buffer. Subsequently, ocfs2_journal_shutdown() calls jbd2_journal_flush()->jbd2_cleanup_journal_tail()-> __jbd2_update_log_tail()->jbd2_journal_update_sb_log_tail() ->lock_buffer(journal->j_sb_buffer), resulting in a null-pointer dereference error. To resolve this issue, we should check the JBD2_LOADED flag to ensure the journal was properly loaded. Additionally, use journal instead of osb->journal directly to simplify the code.
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) |
|---|---|---|---|---|---|
| f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 | affected | git | fd89d92c1140cee8f59de336cb37fa65e359c123 | Unavailable | None listed |
| f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 | affected | git | 703b2c7e0798d263154dc8593dc2345f75dc077f | Unavailable | None listed |
| f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 | affected | git | bf605ae98dab5c15c5b631d4d7f88898cb41b649 | Unavailable | None listed |
| f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 | affected | git | ff55291fb36779819211b596da703389135f5b05 | Unavailable | None listed |
| f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 | affected | git | 82dfdd1e31e774578f76ce6dc90c834f96403a0f | Unavailable | None listed |
| f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 | affected | git | 86a89e75e9e4dfa768b97db466ad6bedf2e7ea5b | Unavailable | None listed |
| f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 | affected | git | f60e94a83db799bde625ac8671a5b4a6354e7120 | Unavailable | None listed |
| f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 | affected | git | 387bf565cc03e2e8c720b8b4798efea4aacb6962 | Unavailable | None listed |
| f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 | affected | git | 5784d9fcfd43bd853654bb80c87ef293b9e8e80a | 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) |
|---|---|---|---|---|---|
| 2.6.32 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.32 | Unavailable | None listed |
| 4.19.323 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.285 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.227 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.168 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.113 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.55 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.10.14 | unaffected | semver | Unavailable | 6.10.* | None listed |
| 6.11.3 | unaffected | semver | Unavailable | 6.11.* | None listed |
| 6.12 | unaffected | original_commit_for_fix | Unavailable | * | None listed |