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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 6.12.43, 6.15.11, 6.16.2, 6.6.103
- CVEs
- CVE-2025-39750
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 03:50 UTC · Revision 1
Source evidence
wifi: ath12k: Correct tid cleanup when tid setup fails
core-osv · Original sourcePublished 11 Sept 2025, 16:52 UTC
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.
osv:CVE-2025-39750
Kernel
Fixed versions: 6.6.103, 6.12.43, 6.15.11, 6.16.2
Complete source record
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"url": "https://osv.dev/vulnerability/CVE-2025-39750",
"method": "structured",
"payload": {
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"title": "wifi: ath12k: Correct tid cleanup when tid setup fails",
"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.",
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"modified": "2026-10-28T02:30:32.826812025Z",
"provider": "osv",
"references": [
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"https://nvd.nist.gov/vuln/detail/CVE-2025-39750",
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"source_id": "core-osv",
"document_id": 500104,
"published_at": "2025-09-11T16:52:21.917+00:00"
}