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wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup() The mwifiex_adapter_cleanup() function uses timer_delete() (non-synchronous) for the wakeup_timer before the adapter structure is freed. This is incorrect because timer_delete() does not wait for any running timer callback to complete. If the wakeup_timer callback (wakeup_timer_fn) is executing when mwifiex_adapter_cleanup() is called, the callback will continue to access adapter fields (adapter->hw_status, adapter->if_ops.card_reset, etc.) which may be freed by mwifiex_free_adapter() called later in the mwifiex_remove_card() path. Use timer_delete_sync() instead to ensure any running timer callback has completed before returning.

Announced Source revision 1
Original source ↗

CVE-2026-46069

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-2026-46069

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": "4636187da60b6e33526050235c610409d9cc00e8",
        "lessThan": "c3508895450cca4aeaf5dbadbb5e582363005264",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4636187da60b6e33526050235c610409d9cc00e8",
        "lessThan": "1958a92599b2653d730ccb6f5685fc3fbed21812",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4636187da60b6e33526050235c610409d9cc00e8",
        "lessThan": "a88f5391dc68f78cae5eb6a8cd341cafee795d3d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4636187da60b6e33526050235c610409d9cc00e8",
        "lessThan": "11869ce402d95519d49b25a2a97741f68d69d103",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4636187da60b6e33526050235c610409d9cc00e8",
        "lessThan": "63fe3389b3e092d6c0eeea9fc0318e7918b16618",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4636187da60b6e33526050235c610409d9cc00e8",
        "lessThan": "4e179a60a60c0a5aea245e8e67768343c0f070b8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4636187da60b6e33526050235c610409d9cc00e8",
        "lessThan": "030abbae49cf9fd1fba7aa08e15ec81efbeb78cf",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4636187da60b6e33526050235c610409d9cc00e8",
        "lessThan": "ae5e95d4157481693be2317e3ffcd84e36010cbb",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/marvell/mwifiex/init.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.0"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.259",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.210",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.176",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.140",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.86",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.27",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.0.4",
        "versionType": "semver",
        "lessThanOrEqual": "7.0.*"
      },
      {
        "status": "unaffected",
        "version": "7.1",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/marvell/mwifiex/init.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-46069

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#28383 · Revision 1
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Publisher date
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