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wifi: ath11k: Avoid buffer overread in ath11k_wmi_tlv_op_rx()

Type: advisorySource: Official CVE List1 source record

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.

Announced Group revision 1
Original source ↗

CVE-2026-92496

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-92496

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "d5c65159f2895379e11ca13f62feabe93278985d",
        "lessThan": "20166fd9a4ad15d7eccc63c9dc99680aea6558ef",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d5c65159f2895379e11ca13f62feabe93278985d",
        "lessThan": "71690d26c1415e816158b45ee354367244c50d4c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d5c65159f2895379e11ca13f62feabe93278985d",
        "lessThan": "f9726f6d97dca94ab14739c8b632301a940a7e8f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d5c65159f2895379e11ca13f62feabe93278985d",
        "lessThan": "2677fc48dd10dc08cdec99c2692d50fe5f48dcbf",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d5c65159f2895379e11ca13f62feabe93278985d",
        "lessThan": "9652e7e23137538169f60323300cae3413475685",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d5c65159f2895379e11ca13f62feabe93278985d",
        "lessThan": "72a5e45f606ec454ef556a68ffd92e06b0677f44",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d5c65159f2895379e11ca13f62feabe93278985d",
        "lessThan": "9ddbc95dac167e3f2d0e3859e6ce022ae0184fc1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d5c65159f2895379e11ca13f62feabe93278985d",
        "lessThan": "9ef9dd30058cc9223c72f711dca1a28a5947d0c5",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/ath/ath11k/wmi.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.6"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.6",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/ath/ath11k/wmi.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-92496

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#37729 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-92496 · Revision 1Source updated