CVE-2026-74461
Gravedad CVSS v3.1:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
15/08/2026
Última modificación:
19/08/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
i2c: imx: Cancel hrtimer before clearing slave pointer<br />
<br />
In i2c_imx_unreg_slave(), the slave pointer is set to NULL after<br />
disabling interrupts. However, a pending interrupt might already<br />
have started the hrtimer (i2c_imx_slave_timeout) before the pointer<br />
was cleared. If the hrtimer fires after i2c_imx->slave is set to<br />
NULL, the timer callback i2c_imx_slave_finish_op() will call<br />
i2c_imx_slave_event() with a NULL slave pointer, which results in a<br />
use-after-free / NULL pointer dereference.<br />
<br />
Fix by canceling the hrtimer and waiting for it to complete after<br />
disabling interrupts, before clearing the slave pointer.
Impacto
Puntuación base 3.x
8.40
Gravedad 3.x
ALTA
Referencias a soluciones, herramientas e información
- https://git.kernel.org/stable/c/470fe15fb3bb2eba6629be301ca7e991ee3cfb7e
- https://git.kernel.org/stable/c/6ac7702b6cc2b94aaed9ef2d95bfbefcdc90061f
- https://git.kernel.org/stable/c/753060f2b77ff2f386addbd3ecadb95b9f90cddd
- https://git.kernel.org/stable/c/a8a1f9ac3d763e721586f15479ef9140b216ddf3
- https://git.kernel.org/stable/c/affd62f5719a78135b7441aa49c8cab3c3b5e838
- https://git.kernel.org/stable/c/dab4762ee7f3fd0a01980d5407ba48d0261d3bff
- https://git.kernel.org/stable/c/e3da77bdb4015051656bb472c295656bbea03b6f


