CVE-2025-40053
net: dlink: handle copy_thresh allocation failure
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 28, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 84fd710a704f3d53d4120e452e86cea558cf73a8 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5aa9b885602811a026a3f45c92ea2b4b04c54f09 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 9d49e4b14609e1a20d931e718962c4b6b5485174 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ea87151df398d407a632c7bf63013290f01c5009 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7ed5010fef0930f4322d620052edc854ef3ec41f 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fd7b6b2c920d7fd370a612be416a904d6e1ebe55 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8169a6011c5fecc6cb1c3654c541c567d3318de8
Linux / Linux
2.6.12
References
git.kernel.org: https://git.kernel.org/stable/c/84fd710a704f3d53d4120e452e86cea558cf73a8 git.kernel.org: https://git.kernel.org/stable/c/5aa9b885602811a026a3f45c92ea2b4b04c54f09 git.kernel.org: https://git.kernel.org/stable/c/9d49e4b14609e1a20d931e718962c4b6b5485174 git.kernel.org: https://git.kernel.org/stable/c/ea87151df398d407a632c7bf63013290f01c5009 git.kernel.org: https://git.kernel.org/stable/c/7ed5010fef0930f4322d620052edc854ef3ec41f git.kernel.org: https://git.kernel.org/stable/c/fd7b6b2c920d7fd370a612be416a904d6e1ebe55 git.kernel.org: https://git.kernel.org/stable/c/8169a6011c5fecc6cb1c3654c541c567d3318de8