CVE-2026-93798
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)
btrfs: fix reloc root cleanup in merge_reloc_roots()
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix reloc root cleanup in merge_reloc_roots() If the root we got has zero root refs in its root item, we are resetting the root's ->reloc_root without using barriers like we do everywhere else. Sashiko complained about this while reviewing another patch, and it's correct (see the Link tag below). Also, we should not clear BTRFS_ROOT_DEAD_RELOC_TREE from the root unless the root points to the reloc root we have. Fix this by using clear_reloc_root(), which issues the memory barrier after setting the root's ->reloc_root to NULL and before clearing the bit BTRFS_ROOT_DEAD_RELOC_TREE from the root.
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) |
|---|---|---|---|---|---|
| 1dae7e0e58b484eaa43d530f211098fdeeb0f404 | affected | git | 29531470b1bf1e8bd2df4941fe913106edbca615 | Unavailable | None listed |
| 1dae7e0e58b484eaa43d530f211098fdeeb0f404 | affected | git | 415f8665a969d3c906e4fd7c90fcbb4b357886f6 | Unavailable | None listed |
| 1dae7e0e58b484eaa43d530f211098fdeeb0f404 | affected | git | ee695a968aa73b1e67ccbf2133dc0e54381d32b2 | Unavailable | None listed |
| 1dae7e0e58b484eaa43d530f211098fdeeb0f404 | affected | git | 0bc25f0a2d1b3e0a691431c4d7aef36afcd527c5 | Unavailable | None listed |
| 1dae7e0e58b484eaa43d530f211098fdeeb0f404 | affected | git | ab48583aa9948205ff9a6470e23dbff74c565e24 | Unavailable | None listed |
| 1dae7e0e58b484eaa43d530f211098fdeeb0f404 | affected | git | 63d6b1f04cd91c825329712aa526215ffa5d11ca | Unavailable | None listed |
| 1dae7e0e58b484eaa43d530f211098fdeeb0f404 | affected | git | b78fe9563e2d5ae47805f1e5dc722c91fd30e1f8 | Unavailable | None listed |
| ee08663380ffd5a45a1c87580fbc305e8413c235 | affected | git | Unavailable | Unavailable | None listed |
| 33823378ff2b510fd7b566f25bb18438aeb9b23b | affected | git | Unavailable | Unavailable | None listed |
| 5.4.54 | affected | semver | 5.5 | Unavailable | None listed |
| 5.7.11 | affected | semver | 5.8 | 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) |
|---|---|---|---|---|---|
| 5.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.8 | Unavailable | None listed |
| 5.10.271 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.222 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.189 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.158 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.111 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.53 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |