Skip to content
Heist/ feed
High

wifi: ath6kl: fix use-after-free in aggr_reset_state()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: fix use-after-free in aggr_reset_state() The aggr_reset_state() function uses timer_delete() (non-synchronous) for the aggregation timer before proceeding to delete TID state and before the structure is freed by callers like aggr_module_destroy(). If the timer callback (aggr_timeout) is executing when aggr_reset_state() is called, the callback will continue to access aggr_conn fields like rx_tid[] and stat[] which may be freed immediately after by kfree(aggr_info->aggr_conn) in aggr_module_destroy(). Additionally, the timer callback can re-arm itself via mod_timer() while aggr_reset_state() is running, creating a more complex race condition. Use timer_delete_sync() instead to ensure any running timer callback has completed before returning.

Announced Source revision 1
Original source ↗

CVE-2026-68198

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-2026-68198

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": "a1bac650b2d6b1baab1f3e78e2e007a6e2948dde",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "2132a6db05846dd2318857d00e0c1291f9e41b29",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "17ff29cd8dbc977c97788a5f7c011ec807b58242",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "64af6534a085f49d6ed33338a19ab9cf0d0523c9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "b5d618fd61b9069b4c0a6b487022dd3117ad5acc",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "18965470d41e69d3fc10eb62afae29d10f4cdfd1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "a3313111b5d9046af60b370c93eec105b27380c1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "ba7debb4dd6427386862220e8335a53a4bfc235d",
        "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": "5.10.266",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.217",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.184",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.151",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.103",
        "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-2026-68198

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#39114 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement