CVE-2024-58097

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < 8db5de0cf02fccf4c759aa58edbe65659daf607caffected
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < 9f1a002f0171d27f3554e529f3c70df438f05dfeaffected
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < b4991fc41745645f8050506f5a8578bd11e6b378affected
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < 16c6c35c03ea73054a1f6d3302a4ce4a331b427daffected
LinuxLinux5.6affected
LinuxLinux0 < 5.6unaffected
LinuxLinux6.6.122 <= 6.6.*unaffected
LinuxLinux6.12.68 <= 6.12.*unaffected
LinuxLinux6.14.2 <= 6.14.*unaffected
LinuxLinux6.15 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References