CVE-2026-23048
- Source
- https://cve.org/CVERecord?id=CVE-2026-23048
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23048.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-23048
- Downstream
- Published
- 2026-02-04T16:00:30.232Z
- Modified
- 2026-02-09T19:34:24.340308Z
- Summary
- udp: call skb_orphan() before skb_attempt_defer_free()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
udp: call skborphan() before skbattemptdeferfree()
Standard UDP receive path does not use skb->destructor.
But skmsg layer does use it, since it calls skbsetownersksafe() from udpreadskb().
This then triggers this warning in skbattemptdefer_free():
DEBUG_NET_WARN_ON_ONCE(skb->destructor);We must call skb_orphan() to fix this issue.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23048.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0c63d5683eae6a7b4d81382bcbecb2a19feff90d
- https://git.kernel.org/stable/c/e5c8eda39a9fc1547d1398d707aa06c1d080abdd
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23048.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-23048
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
-
Introduced6471658dc66c670580a7616e75f51b52917e7883Fixed0c63d5683eae6a7b4d81382bcbecb2a19feff90dFixede5c8eda39a9fc1547d1398d707aa06c1d080abdd