CVE-2024-40937

gve: Clear napi->skb before dev_kfree_skb_any()

EPSS 0.3%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

12 Jul 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

In the Linux kernel, the following vulnerability has been resolved: gve: Clear napi->skb before dev_kfree_skb_any() gve_rx_free_skb incorrectly leaves napi->skb referencing an skb after it is freed with dev_kfree_skb_any(). This can result in a subsequent call to napi_get_frags returning a dangling pointer. Fix this by clearing napi->skb before the skb is freed.

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/2ce5341c36993b776012601921d7688693f8c037 https://git.kernel.org/stable/c/6f4d93b78ade0a4c2cafd587f7b429ce95abb02e https://git.kernel.org/stable/c/75afd8724739ee5ed8165acde5f6ac3988b485cc https://git.kernel.org/stable/c/a68184d5b420ea4fc7e6b7ceb52bbc66f90d3c50 https://git.kernel.org/stable/c/d221284991118c0ab16480b53baecd857c0bc442 https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html