FlawAtlas
Search the atlas
CVE-2025-39750 Not scored

wifi: ath12k: Correct tid cleanup when tid setup fails

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.

Exploit probability 0.1%
Published September 11, 2025
Required by Not available
Last source change July 15, 2026

02 / AFFECTED SOFTWARE

Affected packages

Linux Kernel
Unknown Unknown

03 / CONNECTIONS

Connected vulnerabilities

related OPENSUSE-SU-2025:20081-1
related SUSE-SU-2025:03600-1
related SUSE-SU-2025:03634-1
related SUSE-SU-2025:20851-1
related SUSE-SU-2025:20861-1
related SUSE-SU-2025:20870-1
related SUSE-SU-2025:20898-1
related SUSE-SU-2025:21074-1
related SUSE-SU-2025:21139-1
related SUSE-SU-2025:21179-1
related SUSE-SU-2025:3751-1
related SUSE-SU-2025:4057-1
related SUSE-SU-2025:4132-1
related SUSE-SU-2025:4141-1

04 / EVIDENCE

Source records

Open Source Vulnerabilities CVE-2025-39750

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.

View original source

05 / REFERENCES

Further evidence