Description (CNA)
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: ath11k_pci 0000:58:00.0: data msdu_pop: invalid buf_id 309 ath11k_pci 0000:58:00.0: data dp_rx_monitor_link_desc_return failed ath11k_pci 0000:58:00.0: data msdu_pop: invalid buf_id 309 ath11k_pci 0000:58:00.0: data dp_rx_monitor_link_desc_return 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-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30 Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected d5c65159f2895379e11ca13f62feabe93278985d before cdb32923699932502b0573f818643aae72ce0cd5; affected d5c65159f2895379e11ca13f62feabe93278985d before 8db5de0cf02fccf4c759aa58edbe65659daf607c; affected d5c65159f2895379e11ca13f62feabe93278985d before 9f1a002f0171d27f3554e529f3c70df438f05dfe; affected d5c65159f2895379e11ca13f62feabe93278985d before b4991fc41745645f8050506f5a8578bd11e6b378; affected d5c65159f2895379e11ca13f62feabe93278985d before 16c6c35c03ea73054a1f6d3302a4ce4a331b427d |
| Linux / Linux | affected 5.6; unaffected 0 before 5.6; unaffected 6.1.188 through 6.1.*; unaffected 6.6.122 through 6.6.*; unaffected 6.12.68 through 6.12.*; unaffected 6.14.2 through 6.14.*; unaffected 6.15 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/cdb32923699932502b0573f818643aae72ce0cd5
- https://git.kernel.org/stable/c/8db5de0cf02fccf4c759aa58edbe65659daf607c
- https://git.kernel.org/stable/c/9f1a002f0171d27f3554e529f3c70df438f05dfe
- https://git.kernel.org/stable/c/b4991fc41745645f8050506f5a8578bd11e6b378
- https://git.kernel.org/stable/c/16c6c35c03ea73054a1f6d3302a4ce4a331b427d
ADP enrichment
No English description supplied.
No references supplied.