CVE-2025-40053high

CVE-2025-40053: high-severity vulnerability in Linux

net: dlink: handle copy_thresh allocation failure

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.6%
exploitation probability
0.6%top 52% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved: net: dlink: handle copy_thresh allocation failure The driver did not handle failure of `netdev_alloc_skb_ip_align()`. If the allocation failed, dereferencing `skb->protocol` could lead to a NULL pointer dereference. This patch tries to allocate `skb`. If the allocation fails, it falls back to the normal path. Tested-on: D-Link DGE-550T Rev-A3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Linux · Linux
Related CVEs — Linux

In the same product, most dangerous first.

CVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 3.4%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 2.9%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2024-53150HIGHALSA: usb-audio: Fix out of bounds reads when finding clock sourcesEPSS 1.4%KEV
References
https://git.kernel.org/stable/c/5aa9b885602811a026a3f45c92ea2b4b04c54f09https://git.kernel.org/stable/c/7ed5010fef0930f4322d620052edc854ef3ec41fhttps://git.kernel.org/stable/c/8169a6011c5fecc6cb1c3654c541c567d3318de8https://git.kernel.org/stable/c/84fd710a704f3d53d4120e452e86cea558cf73a8https://git.kernel.org/stable/c/9d49e4b14609e1a20d931e718962c4b6b5485174https://git.kernel.org/stable/c/ea87151df398d407a632c7bf63013290f01c5009https://git.kernel.org/stable/c/fd7b6b2c920d7fd370a612be416a904d6e1ebe55