CVE-2026-98620

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_eth_soc: unregister net_devices in case of probe failure If register_netdev() fails for one of the MTK_MAX_DEVS devices in mtk_probe(), the error path jumps to err_deinit_ppe, skipping mtk_unreg_dev(). The previously registered net_devices are then freed by mtk_free_dev() while still in NETREG_REGISTERED state, hitting the BUG_ON(dev->reg_state != NETREG_UNREGISTERED). Route the register_netdev() failure to err_unreg_netdev so the net_devices registered so far are properly unregistered before being freed.

Status: Received - 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published: 2026-10-18
Last modified: 2026-10-19

Affected products

Linux Kernel (Linux)

References

https://git.kernel.org/stable/c/245bea0c7ab278150c70366bdeb69b901327133c
https://git.kernel.org/stable/c/ab3bde3b3e56331b4f53a1f6cf4e5e9d1c14c1a0
https://git.kernel.org/stable/c/7254b702e556158e34b4d7c168b5d8e7da5978af
https://git.kernel.org/stable/c/0fdb944d4df02223c67d5e65c4c134ecb57a5668
https://git.kernel.org/stable/c/310d1ac61a4d5a2ca8356a3a48d263acf54503ce