CVE-2026-45998
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 potential UAF after skb_unshare() failure
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix potential UAF after skb_unshare() failure If skb_unshare() fails to unshare a packet due to allocation failure in rxrpc_input_packet(), the skb pointer in the parent (rxrpc_io_thread()) will be NULL'd out. This will likely cause the call to trace_rxrpc_rx_done() to oops. Fix this by moving the unsharing down to where rxrpc_input_call_event() calls rxrpc_input_call_packet(). There are a number of places prior to that where we ignore DATA packets for a variety of reasons (such as the call already being complete) for which an unshare is then avoided. And with that, rxrpc_input_packet() doesn't need to take a pointer to the pointer to the packet, so change that to just a pointer.
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) |
|---|---|---|---|---|---|
| 2d1faf7a0ca3c0b327cf064c80e4e775532c9319 | affected | git | e3bf143b1e98fb3d6d9e6825bcd683974d478e8c | Unavailable | None listed |
| 2d1faf7a0ca3c0b327cf064c80e4e775532c9319 | affected | git | bf20f46d94f1db38e6ffc0ca204a5fe0de01b495 | Unavailable | None listed |
| 2d1faf7a0ca3c0b327cf064c80e4e775532c9319 | affected | git | 996b0487b3cdda4c91811dbb1c9564626bc840bd | Unavailable | None listed |
| 2d1faf7a0ca3c0b327cf064c80e4e775532c9319 | affected | git | 8fde6296c4d4da2be7ab761305ab7f232b94eefd | Unavailable | None listed |
| 2d1faf7a0ca3c0b327cf064c80e4e775532c9319 | affected | git | 1f2740150f904bfa60e4bad74d65add3ccb5e7f8 | 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) |
|---|---|---|---|---|---|
| 6.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.2 | Unavailable | None listed |
| 6.6.140 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.86 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.27 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.4 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |