Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix crash when unbinding If there is an error during some initialization related to firmware, the function ath12k_dp_cc_cleanup is called to release resources. However this is released again when the device is unbinded (ath12k_pci), and we get: BUG: kernel NULL pointer dereference, address: 0000000000000020 at RIP: 0010:ath12k_dp_cc_cleanup.part.0+0xb6/0x500 [ath12k] Call Trace: ath12k_dp_cc_cleanup ath12k_dp_free ath12k_core_deinit ath12k_pci_remove ... The issue is always reproducible from a VM because the MSI addressing initialization is failing. In order to fix the issue, just set to NULL the released structure in ath12k_dp_cc_cleanup at the end.
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
d889913205cf7ebda905b1e62c5867ed4e39f6c2 to < 81da9c0854545c3188ca2a09afe7cb65f9c012b5affectedd889913205cf7ebda905b1e62c5867ed4e39f6c2 to < 2eec88c0fa63f8ad35704a8c9df0b5bd8694fcdaaffectedd889913205cf7ebda905b1e62c5867ed4e39f6c2 to < 488d2959c28621e52b3cce118a813a4bc18bb3d1affectedd889913205cf7ebda905b1e62c5867ed4e39f6c2 to < 1304446f67863385dc4c914b6e0194f6664ee764affected
Linux Linux
Default version status: affected
6.3affected0 to < 6.3unaffected6.6.64 to ≤ 6.6.*unaffected6.11.11 to ≤ 6.11.*unaffected6.12.2 to ≤ 6.12.*unaffected6.13 to ≤ *unaffected