CVE-2026-68450
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: free mapping node on duplicate reloc root insert
In the Linux kernel, the following vulnerability has been resolved: btrfs: free mapping node on duplicate reloc root insert __add_reloc_root() allocates a mapping_node before inserting it into rc->reloc_root_tree. If rb_simple_insert() finds an existing entry, it returns the existing rb_node and leaves the newly allocated node unlinked. The error path then returns -EEXIST without freeing the new node. Since the node was never inserted into reloc_root_tree, the later cleanup in put_reloc_control() cannot find it either. Free the newly allocated node before returning -EEXIST. The callers currently assert that -EEXIST should not happen, so this is a defensive cleanup for an unexpected duplicate insert path. If the path is ever reached, the local allocation should still be released.
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) |
|---|---|---|---|---|---|
| 57a304cfd43b2b4a5b44b8f5dc026abb34183068 | affected | git | 29d9746812d8b7c37d594f484e994fd552c3ec33 | Unavailable | None listed |
| 57a304cfd43b2b4a5b44b8f5dc026abb34183068 | affected | git | b7c5b8e1d5f0779dfbabc3068b7ac0f12e53b3a8 | Unavailable | None listed |
| 57a304cfd43b2b4a5b44b8f5dc026abb34183068 | affected | git | 92bedc0455552b42ada1a1f42b0e3a8593cdfccc | Unavailable | None listed |
| 57a304cfd43b2b4a5b44b8f5dc026abb34183068 | affected | git | 14a8be9428435ee17f17fae7991215c246b7fd43 | Unavailable | None listed |
| 57a304cfd43b2b4a5b44b8f5dc026abb34183068 | affected | git | 797dc567146c7e3c4f8d9680e4fbc76e0a6d9151 | Unavailable | None listed |
| 57a304cfd43b2b4a5b44b8f5dc026abb34183068 | affected | git | ae0629ff9ccb836416ada129f4edc7efea6eaaad | Unavailable | None listed |
| 57a304cfd43b2b4a5b44b8f5dc026abb34183068 | affected | git | 6a8269b6459ed870a8156c106a0f597383907872 | 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) |
|---|---|---|---|---|---|
| 5.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.13 | Unavailable | None listed |
| 5.15.216 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.183 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.148 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.101 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.42 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.6 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |