CVE-2026-23066
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: Fix recvmsg() unconditional requeue
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix recvmsg() unconditional requeue If rxrpc_recvmsg() fails because MSG_DONTWAIT was specified but the call at the front of the recvmsg queue already has its mutex locked, it requeues the call - whether or not the call is already queued. The call may be on the queue because MSG_PEEK was also passed and so the call was not dequeued or because the I/O thread requeued it. The unconditional requeue may then corrupt the recvmsg queue, leading to things like UAFs or refcount underruns. Fix this by only requeuing the call if it isn't already on the queue - and moving it to the front if it is already queued. If we don't queue it, we have to put the ref we obtained by dequeuing it. Also, MSG_PEEK doesn't dequeue the call so shouldn't call rxrpc_notify_socket() for the call if we didn't use up all the data on the queue, so fix that also.
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) |
|---|---|---|---|---|---|
| 540b1c48c37ac0ad66212004db21e1ff7e2d78be | affected | git | 8fd3b5e297854a4da0f273169baf4b1b7b257b97 | Unavailable | None listed |
| 540b1c48c37ac0ad66212004db21e1ff7e2d78be | affected | git | c198628f3fca5c874d93874c233014d336e09f64 | Unavailable | None listed |
| 540b1c48c37ac0ad66212004db21e1ff7e2d78be | affected | git | c6cebcb4e0b3140ec2ace45c020a9049527385d1 | Unavailable | None listed |
| 540b1c48c37ac0ad66212004db21e1ff7e2d78be | affected | git | 0464bf75590da75b8413c3e758c04647b4cdb3c6 | Unavailable | None listed |
| 540b1c48c37ac0ad66212004db21e1ff7e2d78be | affected | git | cf969bddd6e69c5777fa89dc88402204e72f312a | Unavailable | None listed |
| 540b1c48c37ac0ad66212004db21e1ff7e2d78be | affected | git | 930114425065f7ace6e0c0630fab4af75e059ea8 | Unavailable | None listed |
| 540b1c48c37ac0ad66212004db21e1ff7e2d78be | affected | git | 2c28769a51deb6022d7fbd499987e237a01dd63a | 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 |
| 5.10.258 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.209 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.175 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.130 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.78 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.8 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19 | unaffected | original_commit_for_fix | Unavailable | * | None listed |