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.

INFO

Published Date :

2026-02-04T16:00:30.232Z

Last Modified :

2026-02-09T08:37:43.601Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2026-23048 vulnerability.

Vendors Products
Linux
  • Linux Kernel
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23048.

URL Resource
https://git.kernel.org/stable/c/0c63d5683eae6a7b4d81382bcbecb2a19feff90d cve-icon cve-icon
https://git.kernel.org/stable/c/e5c8eda39a9fc1547d1398d707aa06c1d080abdd cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2026020441-CVE-2026-23048-f1cc@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-23048 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-23048 cve-icon
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