CVE-2024-53191

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> wifi: ath12k: fix warning when unbinding<br /> <br /> If there is an error during some initialization related to firmware,<br /> the buffers dp-&gt;tx_ring[i].tx_status are released.<br /> However this is released again when the device is unbinded (ath12k_pci),<br /> and we get:<br /> WARNING: CPU: 0 PID: 2098 at mm/slub.c:4689 free_large_kmalloc+0x4d/0x80<br /> Call Trace:<br /> free_large_kmalloc<br /> ath12k_dp_free<br /> ath12k_core_deinit<br /> ath12k_pci_remove<br /> ...<br /> <br /> The issue is always reproducible from a VM because the MSI addressing<br /> initialization is failing.<br /> <br /> In order to fix the issue, just set the buffers to NULL after releasing in<br /> order to avoid the double free.