What’s Vulnerable › Vulnerabilities

CVE-2025-22050: usbnet:fix NPE during rx_complete

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-16 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: usbnet:fix NPE during rx_complete Missing usbnet_going_away Check in Critical Path. The usb_submit_urb function lacks a usbnet_going_away validation, whereas __usbnet_queue_skb includes this check. This inconsistency creates a race condition where: A URB request may succeed, but the corresponding SKB data fails to be queued. Subsequent processes: (e.g., rx_complete → defer_bh → __skb_unlink(skb, list)) attempt to access skb->next, triggering a NULL pointer dereference (Kernel Panic).

Affected products

• Linux kernel: from 5.15.168 before 5.15.180; from 6.1.113 before 6.1.134; from 6.6.54 before 6.6.87; from 6.10.13 before 6.11; from 6.11.2 before 6.12.23; from 6.13 before 6.13.11 — fixed in 5.15.180, 6.1.134, 6.11, 6.12.23, 6.13.11, 6.14.2

How to fix

Upgrade to a fixed version: Linux kernel 5.15.180, 6.1.134, 6.11, 6.12.23. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0c30988588b28393e3e8873d5654f910e86391ba
• https://git.kernel.org/stable/c/0f10f83acfd619e13c64d6705908dfd792f19544
• https://git.kernel.org/stable/c/51de3600093429e3b712e5f091d767babc5dd6df
• https://git.kernel.org/stable/c/95789c2f94fd29dce8759f9766baa333f749287c
• https://git.kernel.org/stable/c/acacd48a37b52fc95f621765762c04152b58d642
• https://git.kernel.org/stable/c/d689645cd1594ea1d13cb0c404f8ad1011353e0e
• https://git.kernel.org/stable/c/fd9ee3f0d6a53844f65efde581c91bbb0ff749ac
• https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

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