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CVE-2026-23048
Published: Feb 4, 2026
Modified: May 11, 2026
PUBLISHED
Description
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 | Product | Versions |
|---|---|---|
Linux | Linux | affected 6471658dc66c670580a7616e75f51b52917e7883 - < 0c63d5683eae6a7b4d81382bcbecb2a19feff90daffected 6471658dc66c670580a7616e75f51b52917e7883 - < e5c8eda39a9fc1547d1398d707aa06c1d080abdd |
Linux | Linux | affected 6.18unaffected 0 - < 6.18unaffected 6.18.6 - <= 6.18.*unaffected 6.19 - <= * |
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