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wifi: ath6kl: fix OOB access from firmware ADDBA window size

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: fix OOB access from firmware ADDBA window size aggr_recv_addba_req_evt() logs a debug message when the firmware-supplied win_sz is outside [AGGR_WIN_SZ_MIN, AGGR_WIN_SZ_MAX] but does not return. The out-of-range win_sz is then used in TID_WINDOW_SZ() to compute a kzalloc size and stored in rxtid->hold_q_sz, leading to zero-size or overflowed allocations and subsequent out-of-bounds access. Clean up any previously active aggregation session for the TID first, then return early when win_sz is out of the valid range, instead of proceeding with a broken allocation size.

Announced Group revision 1
Original source ↗

CVE-2026-68199

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-2026-68199

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": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "c8e3ca7954d8233fbc54bd370c1827670f43c538",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "f480d9910fcfe326db3a6281df80e83af347193e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "67bc9af4f41f2bdba20404fbd753b2a1bd6dd352",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "d4558c140782180e2c80a7588a4af9f8675adfc4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "5a65fd4722416061698b0a3277222381efbc4882",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "58c6c8dc2e022e1b4f3dc58725a1ca49ff470f9c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "cec0a487cf38ac1f9bca240ffe8a94c5014b72f2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "44126b6994eeb28f2103b638e698f40a1244f327",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/ath/ath6kl/txrx.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.2"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.2",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.265",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.216",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.183",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.148",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.101",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.42",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.1.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.1.*"
      },
      {
        "status": "unaffected",
        "version": "7.2",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/ath/ath6kl/txrx.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-68199

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#41153 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-68199 · Revision 1Source updated