CVE-2024-53188: wifi: ath12k: fix crash when unbinding
First published: Fri Dec 27 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.3<6.6.64 | |
| Linux Kernel | >=6.7<6.11.11 | |
| Linux Kernel | >=6.12<6.12.2 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
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Reference Links
- https://git.kernel.org/stable/c/81da9c0854545c3188ca2a09afe7cb65f9c012b5
- https://git.kernel.org/stable/c/2eec88c0fa63f8ad35704a8c9df0b5bd8694fcda
- https://git.kernel.org/stable/c/488d2959c28621e52b3cce118a813a4bc18bb3d1
- https://git.kernel.org/stable/c/1304446f67863385dc4c914b6e0194f6664ee764
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-53188
- https://nvd.nist.gov/vuln/detail/CVE-2024-53188
- https://launchpad.net/bugs/cve/CVE-2024-53188
- https://security-tracker.debian.org/tracker/CVE-2024-53188
- https://ubuntu.com/security/CVE-2024-53188
- https://git.kernel.org/linus/1304446f67863385dc4c914b6e0194f6664ee764
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