CVE-2024-44963
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)
btrfs: do not BUG_ON() when freeing tree block after error
In the Linux kernel, the following vulnerability has been resolved: btrfs: do not BUG_ON() when freeing tree block after error When freeing a tree block, at btrfs_free_tree_block(), if we fail to create a delayed reference we don't deal with the error and just do a BUG_ON(). The error most likely to happen is -ENOMEM, and we have a comment mentioning that only -ENOMEM can happen, but that is not true, because in case qgroups are enabled any error returned from btrfs_qgroup_trace_extent_post() (can be -EUCLEAN or anything returned from btrfs_search_slot() for example) can be propagated back to btrfs_free_tree_block(). So stop doing a BUG_ON() and return the error to the callers and make them abort the transaction to prevent leaking space. Syzbot was triggering this, likely due to memory allocation failure injection.
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) |
|---|---|---|---|---|---|
| fb235dc06fac9eaa4408ade9c8b20d45d63c89b7 | affected | git | 22d907bcd283d69d5e60497fc0d51969545c583b | Unavailable | None listed |
| fb235dc06fac9eaa4408ade9c8b20d45d63c89b7 | affected | git | 98251cd60b4d702a8a81de442ab621e83a3fb24f | Unavailable | None listed |
| fb235dc06fac9eaa4408ade9c8b20d45d63c89b7 | affected | git | bb3868033a4cccff7be57e9145f2117cbdc91c11 | 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) |
|---|---|---|---|---|---|
| 4.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.11 | Unavailable | None listed |
| 6.6.64 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.10.5 | unaffected | semver | Unavailable | 6.10.* | None listed |
| 6.11 | unaffected | original_commit_for_fix | Unavailable | * | None listed |