CVE-2026-31736
net: ethernet: mtk_ppe: avoid NULL deref when gmac0 is disabled
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_ppe: avoid NULL deref when gmac0 is disabled If the gmac0 is disabled, the precheck for a valid ingress device will cause a NULL pointer deref and crash the system. This happens because eth->netdev[0] will be NULL but the code will directly try to access netdev_ops. Instead of just checking for the first net_device, it must be checked if any of the mtk_eth net_devices is matching the netdev_ops of the ingress device.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 1, 2026 |
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Affected Versions
Linux / Linux
73cfd947dbdb25ef9863ac49c4596a7d53ad4025 < 0b832aad33e6f160fda310f0306a6483d85e9d6e 73cfd947dbdb25ef9863ac49c4596a7d53ad4025 < 5dff799c677152dde963c3917bacd9127b03e145 73cfd947dbdb25ef9863ac49c4596a7d53ad4025 < 7b2380f0a0e374010c1a4a13203511b9dee5b166 73cfd947dbdb25ef9863ac49c4596a7d53ad4025 < 976ff48c2ac6e6b25b01428c9d7997bcd0fb2949
Linux / Linux
6.11
References
git.kernel.org: https://git.kernel.org/stable/c/0b832aad33e6f160fda310f0306a6483d85e9d6e git.kernel.org: https://git.kernel.org/stable/c/5dff799c677152dde963c3917bacd9127b03e145 git.kernel.org: https://git.kernel.org/stable/c/7b2380f0a0e374010c1a4a13203511b9dee5b166 git.kernel.org: https://git.kernel.org/stable/c/976ff48c2ac6e6b25b01428c9d7997bcd0fb2949