CVE-2026-31532
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)
can: raw: fix ro->uniq use-after-free in raw_rcv()
In the Linux kernel, the following vulnerability has been resolved: can: raw: fix ro->uniq use-after-free in raw_rcv() raw_release() unregisters raw CAN receive filters via can_rx_unregister(), but receiver deletion is deferred with call_rcu(). This leaves a window where raw_rcv() may still be running in an RCU read-side critical section after raw_release() frees ro->uniq, leading to a use-after-free of the percpu uniq storage. Move free_percpu(ro->uniq) out of raw_release() and into a raw-specific socket destructor. can_rx_unregister() takes an extra reference to the socket and only drops it from the RCU callback, so freeing uniq from sk_destruct ensures the percpu area is not released until the relevant callbacks have drained. [mkl: applied manually]
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) |
|---|---|---|---|---|---|
| 514ac99c64b22d83b52dfee3b8becaa69a92bc4a | affected | git | 1de30576a6dfeaaa27ef91fa272e6b9240b6fbd3 | Unavailable | None listed |
| 514ac99c64b22d83b52dfee3b8becaa69a92bc4a | affected | git | 64c8553decf5a5f2417bd54761ea0a832c56c4ca | Unavailable | None listed |
| 514ac99c64b22d83b52dfee3b8becaa69a92bc4a | affected | git | 3f43f12fde34737fba091b7e3ab391e14ddbb0be | Unavailable | None listed |
| 514ac99c64b22d83b52dfee3b8becaa69a92bc4a | affected | git | 5e9cfffad898bbeaafd0ea608a6d267362f050fc | Unavailable | None listed |
| 514ac99c64b22d83b52dfee3b8becaa69a92bc4a | affected | git | 572f0bf536ebc14f6e7da3d21a85cf076de8358e | Unavailable | None listed |
| 514ac99c64b22d83b52dfee3b8becaa69a92bc4a | affected | git | 1a0f2de81f7fbdc538fc72d7d74609b79bc83cc0 | Unavailable | None listed |
| 514ac99c64b22d83b52dfee3b8becaa69a92bc4a | affected | git | 7201a531b9a5ed892bfda5ded9194ef622de8ffa | Unavailable | None listed |
| 514ac99c64b22d83b52dfee3b8becaa69a92bc4a | affected | git | 34c1741254ff972e8375faf176678a248826fe3a | Unavailable | None listed |
| 514ac99c64b22d83b52dfee3b8becaa69a92bc4a | affected | git | a535a9217ca3f2fccedaafb2fddb4c48f27d36dc | 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) |
|---|---|---|---|---|---|
| 4.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.1 | 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 |
| 6.6.136 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.83 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.24 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.14 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0.1 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |