CVE-2026-31745 PUBLISHED

reset: gpio: fix double free in reset_add_gpio_aux_device() error path

Assigner: Linux
Reserved: 09.03.2026 Published: 01.05.2026 Updated: 01.05.2026

In the Linux kernel, the following vulnerability has been resolved:

reset: gpio: fix double free in reset_add_gpio_aux_device() error path

When __auxiliary_device_add() fails, reset_add_gpio_aux_device() calls auxiliary_device_uninit(adev).

The device release callback reset_gpio_aux_device_release() frees adev, but the current error path then calls kfree(adev) again, causing a double free.

Keep kfree(adev) for the auxiliary_device_init() failure path, but avoid freeing adev after auxiliary_device_uninit().

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 5fc4e4cf7a2268b5f73700fd1e8d02159f2417d8 to 1de465753220deb41569cf2add87bbb0673731db (excl.)
  • affected from 5fc4e4cf7a2268b5f73700fd1e8d02159f2417d8 to fbffb8c7c7bb4d38e9f65e0bee446685011de5d8 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.19 is affected
  • unaffected from 0 to 6.19 (excl.)
  • unaffected from 6.19.12 to 6.19.* (incl.)
  • unaffected from 7.0 to * (incl.)

References