CVE-2026-23048
udp: call skb_orphan() before skb_attempt_defer_free()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: udp: call skb_orphan() before skb_attempt_defer_free() Standard UDP receive path does not use skb->destructor. But skmsg layer does use it, since it calls skb_set_owner_sk_safe() from udp_read_skb(). This then triggers this warning in skb_attempt_defer_free(): DEBUG_NET_WARN_ON_ONCE(skb->destructor); We must call skb_orphan() to fix this issue.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 4, 2026 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
6471658dc66c670580a7616e75f51b52917e7883 < 0c63d5683eae6a7b4d81382bcbecb2a19feff90d 6471658dc66c670580a7616e75f51b52917e7883 < e5c8eda39a9fc1547d1398d707aa06c1d080abdd
Linux / Linux
6.18