GHSA-WJRG-9VR2-CWJQ

Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-17 18:32
VLAI
Details

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

wifi: ath11k: Avoid buffer overread in ath11k_wmi_tlv_op_rx()

Currently, in ath11k_wmi_tlv_op_rx(), the firmware buffer is read without first verifying that the buffer has enough data to hold a header. This could result in a buffer overread.

Add an upfront length check before dereferencing skb->data as a wmi_cmd_hdr. The check is placed before the trace_ath11k_wmi_event() call to preserve the existing trace semantics (tracing the full raw WMI event including the header), unlike the analogous ath12k fix which could use skb_pull_data() directly.

Compile tested only.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-92496"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-17T17:17:51Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: Avoid buffer overread in ath11k_wmi_tlv_op_rx()\n\nCurrently, in ath11k_wmi_tlv_op_rx(), the firmware buffer is read\nwithout first verifying that the buffer has enough data to hold a\nheader. This could result in a buffer overread.\n\nAdd an upfront length check before dereferencing skb-\u003edata as a\nwmi_cmd_hdr. The check is placed before the trace_ath11k_wmi_event()\ncall to preserve the existing trace semantics (tracing the full raw\nWMI event including the header), unlike the analogous ath12k fix which\ncould use skb_pull_data() directly.\n\nCompile tested only.",
  "id": "GHSA-wjrg-9vr2-cwjq",
  "modified": "2026-09-17T18:32:06Z",
  "published": "2026-09-17T18:32:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92496"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/20166fd9a4ad15d7eccc63c9dc99680aea6558ef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2677fc48dd10dc08cdec99c2692d50fe5f48dcbf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/71690d26c1415e816158b45ee354367244c50d4c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/72a5e45f606ec454ef556a68ffd92e06b0677f44"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9652e7e23137538169f60323300cae3413475685"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ddbc95dac167e3f2d0e3859e6ce022ae0184fc1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ef9dd30058cc9223c72f711dca1a28a5947d0c5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f9726f6d97dca94ab14739c8b632301a940a7e8f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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