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CVE-2026-31736

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CVE-2026-31736

Published: May 1, 2026

Modified: May 11, 2026

PUBLISHED

Description

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.

VendorProductVersions

Linux

Linux

affected
73cfd947dbdb25ef9863ac49c4596a7d53ad4025 - < 0b832aad33e6f160fda310f0306a6483d85e9d6e
affected
73cfd947dbdb25ef9863ac49c4596a7d53ad4025 - < 5dff799c677152dde963c3917bacd9127b03e145
affected
73cfd947dbdb25ef9863ac49c4596a7d53ad4025 - < 7b2380f0a0e374010c1a4a13203511b9dee5b166
affected
73cfd947dbdb25ef9863ac49c4596a7d53ad4025 - < 976ff48c2ac6e6b25b01428c9d7997bcd0fb2949

Linux

Linux

affected
6.11
unaffected
0 - < 6.11
unaffected
6.12.81 - <= 6.12.*
unaffected
6.18.22 - <= 6.18.*
unaffected
6.19.12 - <= 6.19.*

+1 more versions

References

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