Riskcovery

CVE-2024-53188

wifi: ath12k: fix crash when unbinding

State
Published
Severity
7.8 High
Published
Dec 27, 2024
Updated
Aug 5, 2026
Reserved
Nov 19, 2024

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
3.15.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP

Weaknesses

Affected Products

ProductVersions
LinuxLinux
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 81da9c0854545c3188ca2a09afe7cb65f9c012b5Affected
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 2eec88c0fa63f8ad35704a8c9df0b5bd8694fcdaAffected
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 488d2959c28621e52b3cce118a813a4bc18bb3d1Affected
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 1304446f67863385dc4c914b6e0194f6664ee764Affected
LinuxLinux
  • 6.3Affected
  • before 6.3Not affected
  • 6.6.64 through 6.6.*Not affected
  • 6.11.11 through 6.11.*Not affected
  • 6.12.2 through 6.12.*Not affected
  • 6.13 and laterNot affected

References

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