CVEvulnerability
CVE-2026-97432
- Status
- Received
- Published
- 2026-09-24
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: fix P2P-Device binding handling
Our binding handling for P2P-Device can run into the following
scenario, as observed by our testing:
- a station interface is connected on some channel
- the P2P-Device does a remain-on-channel (ROC) on that channel
- the ROC ends, and the P2P-Device is removed from the binding,
but the phy_ctxt pointer is left around as a PHY cache so we
don't need to recalibrate to the channel again and again in
case it's not shared
- a binding update by the station interface, even a removal,
will re-add the P2P-Device to the binding
- the P2P-Device is removed, which removes the PHY context, but
it's still in the binding so the firmware crashes
Since the P2P device is removed from the binding and only re-
added by unrelated code, but we want to keep the phy_ctxt around
as a cache for future ROC usage, fix it by adding a boolean that
indicates whether or not the P2P-Device should be added to the
binding, and handle that in the binding iterator. That way, the
station interface cannot re-add the P2P-Device to the binding
when that isn't active.
References
- https://git.kernel.org/stable/c/50bf37362362c8f03ab1aeab866b7fb08b262204 git.kernel.org
- https://git.kernel.org/stable/c/7be2fc679c8f657868988e41c0bb15bf5a454620 git.kernel.org
- https://git.kernel.org/stable/c/8575514a979490c9d4517fcf19b4e19119c27702 git.kernel.org
- https://git.kernel.org/stable/c/b74e377cad9271950c57472867c469e4b5b2ff0c git.kernel.org