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CVE-2025-40053

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CVE-2025-40053

Published: Oct 28, 2025

Modified: May 11, 2026

PUBLISHED

Description

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

VendorProductVersions

Linux

Linux

affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - < 84fd710a704f3d53d4120e452e86cea558cf73a8
affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - < 5aa9b885602811a026a3f45c92ea2b4b04c54f09
affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - < 9d49e4b14609e1a20d931e718962c4b6b5485174
affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - < ea87151df398d407a632c7bf63013290f01c5009
affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - < 7ed5010fef0930f4322d620052edc854ef3ec41f

+2 more versions

Linux

Linux

affected
2.6.12
unaffected
0 - < 2.6.12
unaffected
5.10.246 - <= 5.10.*
unaffected
5.15.195 - <= 5.15.*
unaffected
6.1.156 - <= 6.1.*

+4 more versions

References

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