CVE-2023-53602

Summary

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

wifi: ath11k: fix memory leak in WMI firmware stats

Memory allocated for firmware pdev, vdev and beacon statistics are not released during rmmod.

Fix it by calling ath11k_fw_stats_free() function before hardware unregister.

While at it, avoid calling ath11k_fw_stats_free() while processing the firmware stats received in the WMI event because the local list is getting spliced and reinitialised and hence there are no elements in the list after splicing.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < 86f9330a49d1464849482298dd34d361859183ebaffected
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < 55248d36beb79d3a61c9fb3122dc377fff523c89affected
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < 6aafa1c2d3e3fea2ebe84c018003f2a91722e607affected
LinuxLinux5.6affected
LinuxLinux0 < 5.6unaffected
LinuxLinux6.1.42 <= 6.1.*unaffected
LinuxLinux6.4.7 <= 6.4.*unaffected
LinuxLinux6.5 <= *unaffected

Weaknesses

References