CVE-2025-21669
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
vsock/virtio: discard packets if the transport changes
In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: discard packets if the transport changes If the socket has been de-assigned or assigned to another transport, we must discard any packets received because they are not expected and would cause issues when we access vsk->transport. A possible scenario is described by Hyunwoo Kim in the attached link, where after a first connect() interrupted by a signal, and a second connect() failed, we can find `vsk->transport` at NULL, leading to a NULL pointer dereference.
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) |
|---|---|---|---|---|---|
| c0cfa2d8a788fcf45df5bf4070ab2474c88d543a | affected | git | 18a7fc371d1dbf8deff16c2dd9292bcc73f43040 | Unavailable | None listed |
| c0cfa2d8a788fcf45df5bf4070ab2474c88d543a | affected | git | 6486915fa661584d70e8e7e4068c6c075c67dd6d | Unavailable | None listed |
| c0cfa2d8a788fcf45df5bf4070ab2474c88d543a | affected | git | 88244163bc7e7b0ce9dd7bf4c8a563b41525c3ee | Unavailable | None listed |
| c0cfa2d8a788fcf45df5bf4070ab2474c88d543a | affected | git | d88b249e14bd0ee1e46bbe4f456e22e01b8c68de | Unavailable | None listed |
| c0cfa2d8a788fcf45df5bf4070ab2474c88d543a | affected | git | 677579b641af109613564460a4e3bdcb16850b61 | Unavailable | None listed |
| c0cfa2d8a788fcf45df5bf4070ab2474c88d543a | affected | git | 2cb7c756f605ec02ffe562fb26828e4bcc5fdfc1 | 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) |
|---|---|---|---|---|---|
| 5.5 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.5 | Unavailable | None listed |
| 5.10.234 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.177 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.127 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.74 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.11 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.13 | unaffected | original_commit_for_fix | Unavailable | * | None listed |