CVE-2026-98971
What it is
In the Linux kernel, the following vulnerability has been resolved: gpio: exar: initialize the ID before registering its cleanup devm_add_action_or_reset() invokes the cleanup action immediately when registering the action fails. gpio_exar_probe() currently stores the allocated ID in exar_gpio only after registering the action, so that failure makes exar_devm_ida_free() release ID 0. If the allocated ID is nonzero, this leaks that ID and can free ID 0 belonging to another device. Store the ID before registering the cleanup action so both the immediate failure path and normal device teardown release the correct allocation.
At a glance
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Received
References
- https://git.kernel.org/stable/c/01318927a9055136c207399eeb36ce07becac179
- https://git.kernel.org/stable/c/0250acba81654b2ee50bde324ad72b3f0c04d0bd
- https://git.kernel.org/stable/c/4d69e74034b208588636ecc177e0dd43a7696af3
- https://git.kernel.org/stable/c/88b9c4bbf83d940ab672956e5af921215905dcb4
- https://git.kernel.org/stable/c/b78c114600ae3df90c083c72c290437b068577c8
- https://git.kernel.org/stable/c/bf3d841ef12fcbec4458e2750956b738b043a226
- https://git.kernel.org/stable/c/f7ec4dbd2a073dd53b6349be1c586fe8580dd6b2