Description
In the Linux kernel, the following vulnerability has been resolved: iio: trigger: cancel reenable_work before freeing trigger iio_trigger_notify_done_atomic() defers ->reenable() into trig->reenable_work on the system workqueue, and the worker dereferences the owning trigger through container_of(). Nothing cancels this work before iio_trig_release() frees the trigger, so a worker armed by the last in-flight IRQ can outlive the free and touch freed memory. Cancel it at the top of iio_trig_release(), which every free path reaches through the device core's final put_device(). Found by an in-house static analysis tool.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
9020ef659885f2622cfb386cc229b6d618362895 to < ac5d26a46c90ff61fd574eff4e8f0d71c905828aaffected9020ef659885f2622cfb386cc229b6d618362895 to < cf513df1a2c75566cdc802d9da47f62e8d6cfd18affected9020ef659885f2622cfb386cc229b6d618362895 to < e64703280ce7a23a43c27efebeb7da457c88bf5caffected9020ef659885f2622cfb386cc229b6d618362895 to < 882d0011c59ff8ac15188ec9ce071399ecfa10adaffected9020ef659885f2622cfb386cc229b6d618362895 to < 2a57b9246cecd5dd797a42eb310d6c8816f26d9eaffecteda18aeac73c0f692ba40964f5f56e182312ae843baffected2c5c948451d57596640b20887b06b523d376eb24affected5.15.17 to < 5.16affected5.16.3 to < 5.17affected
Linux Linux
Default version status: affected
5.17affected0 to < 5.17unaffected6.6.160 to ≤ 6.6.*unaffected6.12.113 to ≤ 6.12.*unaffected6.18.56 to ≤ 6.18.*unaffected7.2.10 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/ac5d26a46c90ff61fd574eff4e8f0d71c905828a ↗
- https://git.kernel.org/stable/c/cf513df1a2c75566cdc802d9da47f62e8d6cfd18 ↗
- https://git.kernel.org/stable/c/e64703280ce7a23a43c27efebeb7da457c88bf5c ↗
- https://git.kernel.org/stable/c/882d0011c59ff8ac15188ec9ce071399ecfa10ad ↗
- https://git.kernel.org/stable/c/2a57b9246cecd5dd797a42eb310d6c8816f26d9e ↗