CVE-2024-58097

In the Linux kernel, the following vulnerability has been resolved:

wifi: ath11k: fix RCU stall while reaping monitor destination ring

While processing the monitor destination ring, MSDUs are reaped from the link descriptor based on the corresponding buf_id.

However, sometimes the driver cannot obtain a valid buffer corresponding to the buf_id received from the hardware. This causes an infinite loop in the destination processing, resulting in a kernel crash.

kernel log: ath11kpci 0000:58:00.0: data msdupop: invalid bufid 309 ath11kpci 0000:58:00.0: data dprxmonitorlinkdescreturn failed ath11kpci 0000:58:00.0: data msdupop: invalid bufid 309 ath11kpci 0000:58:00.0: data dprxmonitorlinkdescreturn failed

Fix this by skipping the problematic buf_id and reaping the next entry, replacing the break with the next MSDU processing.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPLV1V2SILICONZLITE-3.6510.30 Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1