CVE-2025-39750

Summary

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

wifi: ath12k: Correct tid cleanup when tid setup fails

Currently, if any error occurs during ath12k_dp_rx_peer_tid_setup(), the tid value is already incremented, even though the corresponding TID is not actually allocated. Proceed to ath12k_dp_rx_peer_tid_delete() starting from unallocated tid, which might leads to freeing unallocated TID and cause potential crash or out-of-bounds access.

Hence, fix by correctly decrementing tid before cleanup to match only the successfully allocated TIDs.

Also, remove tid– from failure case of ath12k_dp_rx_peer_frag_setup(), as decrementing the tid before cleanup in loop will take care of this.

Compile tested only.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2 < 30cad87978057516c93467516bc481a3eacfd66aaffected
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2 < 2ef17d1476ab26bce89764e2f16833d7f52acc38affected
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2 < 907c630e58af9e86e215f3951c7b287bd86d0f15affected
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2 < 6301fe4f209165334d251a1c6da8ae47f93cb32caffected
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2 < 4a2bf707270f897ab8077baee8ed5842a5321686affected
LinuxLinux6.3affected
LinuxLinux0 < 6.3unaffected
LinuxLinux6.6.103 <= 6.6.*unaffected
LinuxLinux6.12.43 <= 6.12.*unaffected
LinuxLinux6.15.11 <= 6.15.*unaffected
LinuxLinux6.16.2 <= 6.16.*unaffected
LinuxLinux6.17 <= *unaffected

Weaknesses

References