CVE-2025-22050

low-risk
Published 2025-04-16

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).

Do I need to act?

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0.11% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
LOCAL / HIGH complexity

Affected Products (1)

Affected Vendors

Linux

References (8)

Patch https://git.kernel.org/stable/c/0c30988588b28393e3e8873d5654f910e86391ba
Patch https://git.kernel.org/stable/c/0f10f83acfd619e13c64d6705908dfd792f19544
Patch https://git.kernel.org/stable/c/51de3600093429e3b712e5f091d767babc5dd6df
Patch https://git.kernel.org/stable/c/95789c2f94fd29dce8759f9766baa333f749287c
Patch https://git.kernel.org/stable/c/acacd48a37b52fc95f621765762c04152b58d642
Patch https://git.kernel.org/stable/c/d689645cd1594ea1d13cb0c404f8ad1011353e0e
Patch https://git.kernel.org/stable/c/fd9ee3f0d6a53844f65efde581c91bbb0ff749ac
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
17
/ 100
low-risk
Severity 12/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal