CVE-2025-21669
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-21669
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21669.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-21669
- Downstream
- Related
- Published
- 2025-01-31T11:25:33.185Z
- Modified
- 2025-11-28T02:34:54.399326Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- vsock/virtio: discard packets if the transport changes
- Details
-
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->transportat NULL, leading to a NULL pointer dereference. - Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21669.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/18a7fc371d1dbf8deff16c2dd9292bcc73f43040
- https://git.kernel.org/stable/c/2cb7c756f605ec02ffe562fb26828e4bcc5fdfc1
- https://git.kernel.org/stable/c/6486915fa661584d70e8e7e4068c6c075c67dd6d
- https://git.kernel.org/stable/c/677579b641af109613564460a4e3bdcb16850b61
- https://git.kernel.org/stable/c/88244163bc7e7b0ce9dd7bf4c8a563b41525c3ee
- https://git.kernel.org/stable/c/d88b249e14bd0ee1e46bbe4f456e22e01b8c68de
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21669.json
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- https://nvd.nist.gov/vuln/detail/CVE-2025-21669
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedc0cfa2d8a788fcf45df5bf4070ab2474c88d543aFixed18a7fc371d1dbf8deff16c2dd9292bcc73f43040Fixed6486915fa661584d70e8e7e4068c6c075c67dd6dFixed88244163bc7e7b0ce9dd7bf4c8a563b41525c3eeFixedd88b249e14bd0ee1e46bbe4f456e22e01b8c68deFixed677579b641af109613564460a4e3bdcb16850b61Fixed2cb7c756f605ec02ffe562fb26828e4bcc5fdfc1