CVE-2024-53188

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2 < 81da9c0854545c3188ca2a09afe7cb65f9c012b5affected
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2 < 2eec88c0fa63f8ad35704a8c9df0b5bd8694fcdaaffected
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2 < 488d2959c28621e52b3cce118a813a4bc18bb3d1affected
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2 < 1304446f67863385dc4c914b6e0194f6664ee764affected
LinuxLinux6.3affected
LinuxLinux0 < 6.3unaffected
LinuxLinux6.6.64 <= 6.6.*unaffected
LinuxLinux6.11.11 <= 6.11.*unaffected
LinuxLinux6.12.2 <= 6.12.*unaffected
LinuxLinux6.13 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References