CVE-2024-40937

gve: Clear napi->skb before dev_kfree_skb_any()

MEDIUM

5.5

CVSS Score

Published: July 12, 2024 at 12:25 PM UTC

Updated: August 5, 2026 at 12:04 PM UTC

1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

MEDIUM5.5

Exploit prediction

EPSS 0.7%

SSVC

No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

5.14 ≤ v < 5.15.1625.14 ≤ v < 6.1.955.14 ≤ v < 6.105.14 ≤ v < 6.6.355.14 ≤ v < 6.9.65.16 ≤ v < 6.1.956.2 ≤ v < 6.6.356.7 ≤ v < 6.9.66.10 rc1 6.10 rc2 6.10 rc39b8dd5e5ea48bbb7532d20c4093a79d8283e4029

Vendor states this is fixed in 2ce5341c36993b776012601921d7688693f8c037 (fixed)

Vendor states this is fixed in 6f4d93b78ade0a4c2cafd587f7b429ce95abb02e (fixed)

Vendor states this is fixed in 75afd8724739ee5ed8165acde5f6ac3988b485cc (fixed)

Vendor states this is fixed in a68184d5b420ea4fc7e6b7ceb52bbc66f90d3c50 (fixed)

Vendor states this is fixed in d221284991118c0ab16480b53baecd857c0bc442 (fixed)

Vendor states this is fixed in 5.14 (unaffected)

Vendor states this is fixed in 5.15.162 (unaffected)

Vendor states this is fixed in 6.1.95 (unaffected)

Vendor states this is fixed in 6.10 (unaffected)

Vendor states this is fixed in 6.6.35 (unaffected)

Vendor states this is fixed in 6.9.6 (unaffected)