Riskcovery

CVE-2024-53191

wifi: ath12k: fix warning 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 warning when unbinding

If there is an error during some initialization related to firmware, the buffers dp->tx_ring[i].tx_status are released. However this is released again when the device is unbinded (ath12k_pci), and we get: WARNING: CPU: 0 PID: 2098 at mm/slub.c:4689 free_large_kmalloc+0x4d/0x80 Call Trace: free_large_kmalloc 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 the buffers to NULL after releasing in order to avoid the double free.

Scores

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

Weaknesses

Affected Products

ProductVersions
LinuxLinux
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 223b546c6222d42147eff034433002ca5e2e7e09Affected
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 90556b96338aa6037cd26dac857327fda7c19732Affected
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 94c9100b600f05a36b33f9ed76dbd6fb0eb25386Affected
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before ca68ce0d9f4bcd032fd1334441175ae399642a06Affected
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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