CVE-2026-74436
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)
rxrpc: serialize kernel accept preallocation with socket teardown
In the Linux kernel, the following vulnerability has been resolved: rxrpc: serialize kernel accept preallocation with socket teardown rxrpc_kernel_charge_accept() reads rx->backlog without any socket/backlog synchronization and passes that raw pointer into rxrpc_service_prealloc_one(). A concurrent rxrpc_discard_prealloc() sets rx->backlog = NULL and frees the backlog rings, so a kernel preallocation worker can keep using a freed struct rxrpc_backlog while updating *_backlog_head/tail and array slots. Serialize the state check and backlog lookup with the socket lock, and reject kernel preallocation once teardown has disabled listening or discarded the service backlog.
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) |
|---|---|---|---|---|---|
| 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 | affected | git | d6207326b4ca0ae1041281b6af9df53f8080669a | Unavailable | None listed |
| 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 | affected | git | 11b429b84c87cb5a0152f14e7d6cb649ed363901 | Unavailable | None listed |
| 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 | affected | git | c20d983968f239574290cf804a58cde18ad1c559 | Unavailable | None listed |
| 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 | affected | git | 0337cdba0c477f176c0459bed012109453184573 | Unavailable | None listed |
| 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 | affected | git | dfa0b2bbc5e50119f89c6b5407faa5ed86dfa7c5 | Unavailable | None listed |
| 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 | affected | git | 35a967ff8b24db09ee429c39c5b5e6571639997d | Unavailable | None listed |
| 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 | affected | git | 1741378a7a83dfd8e53a9196730df709b903cd33 | Unavailable | None listed |
| 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 | affected | git | dc175389b18c29a5303ee83169ec653adfae3e17 | 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) |
|---|---|---|---|---|---|
| 4.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.9 | Unavailable | None listed |
| 5.10.266 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.217 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.184 | 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 |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |