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Re: [PATCH ath-next] wifi: ath12k: Correct tid cleanup when tid setup fails

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On 7/21/2025 11:47 AM, Sarika Sharma wrote:
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.

Signed-off-by: Sarika Sharma <quic_sarishar@xxxxxxxxxxx>

Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@xxxxxxxxxxxxxxxx>




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