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wifi: ath12k: Decrement TID on RX peer frag setup error handling

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Decrement TID on RX peer frag setup error handling Currently, TID is not decremented before peer cleanup, during error handling path of ath12k_dp_rx_peer_frag_setup(). This could lead to out-of-bounds access in peer->rx_tid[]. Hence, add a decrement operation for TID, before peer cleanup to ensures proper cleanup and prevents out-of-bounds access issues when the RX peer frag setup fails. Found during code review. 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-2025-39761
Confirmed fixed CVEs
Not specified
Updated in this feed
8 Nov 2026, 00:22 UTC · Revision 1

Source evidence

wifi: ath12k: Decrement TID on RX peer frag setup error handling

core-osv · Original source

Published 11 Sept 2025, 16:52 UTC

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Decrement TID on RX peer frag setup error handling Currently, TID is not decremented before peer cleanup, during error handling path of ath12k_dp_rx_peer_frag_setup(). This could lead to out-of-bounds access in peer->rx_tid[]. Hence, add a decrement operation for TID, before peer cleanup to ensures proper cleanup and prevents out-of-bounds access issues when the RX peer frag setup fails. Found during code review. Compile tested only.

osv:CVE-2025-39761

Kernel

Fixed versions: 6.6.103, 6.12.43, 6.15.11, 6.16.2

Complete source record
{
  "id": "840f087a328aed6b093cdcdbd2786d260b139d8769c8e860c2b78157573d2168",
  "url": "https://osv.dev/vulnerability/CVE-2025-39761",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: ath12k: Decrement TID on RX peer frag setup error handling",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Decrement TID on RX peer frag setup error handling Currently, TID is not decremented before peer cleanup, during error handling path of ath12k_dp_rx_peer_frag_setup(). This could lead to out-of-bounds access in peer->rx_tid[]. Hence, add a decrement operation for TID, before peer cleanup to ensures proper cleanup and prevents out-of-bounds access issues when the RX peer frag setup fails. Found during code review. Compile tested only.",
    "evidence": "osv:CVE-2025-39761",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "6.6.103",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.43",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.15.11",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.16.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
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    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-39761",
      "aliases": [
        "CVE-2025-39761"
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      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
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      "affected": [
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              "type": "ECOSYSTEM",
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                  "introduced": "6.3.0"
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            {
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                  "introduced": "6.16.0"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-39761.json"
          }
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      ],
      "modified": "2026-10-28T02:30:52.107427561Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/7c0884fcd2ddde0544d2e77f297ae461e1f53f58",
        "https://git.kernel.org/stable/c/7c3e99fd4a66a5ac9c7dd32db07359666efe0002",
        "https://git.kernel.org/stable/c/9530d666f4376c294cdf4348c29fe3542fec980a",
        "https://git.kernel.org/stable/c/a3b73c72c42348bf1555fd2b00f32f941324b242",
        "https://git.kernel.org/stable/c/eb1e1526b82b8cf31f1ef9ca86a2647fb6cd89c6",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39761.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-39761",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39761.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-39761",
        "evidence": "/id"
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    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 520931,
  "published_at": "2025-09-11T16:52:29.788+00:00"
}