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.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= d889913205cf7ebda905b1e62c5867ed4e39f6c2, < 223b546c6222d42147eff034433002ca5e2e7e09; >= d889913205cf7ebda905b1e62c5867ed4e39f6c2, < 90556b96338aa6037cd26dac857327fda7c19732; >= d889913205cf7ebda905b1e62c5867ed4e39f6c2, < 94c9100b600f05a36b33f9ed76dbd6fb0eb25386; >= d889913205cf7ebda905b1e62c5867ed4e39f6c2, < ca68ce0d9f4bcd032fd1334441175ae399642a06 |
| Linux | Linux | 6.3 |
References
- https://git.kernel.org/stable/c/223b546c6222d42147eff034433002ca5e2e7e09Patch
- https://git.kernel.org/stable/c/90556b96338aa6037cd26dac857327fda7c19732Patch
- https://git.kernel.org/stable/c/94c9100b600f05a36b33f9ed76dbd6fb0eb25386Patch
- https://git.kernel.org/stable/c/ca68ce0d9f4bcd032fd1334441175ae399642a06Patch
Timeline
- Published
- Dec 27, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Modified