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CVE-2026-46180 (GCVE-0-2026-46180)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-06-19 11:59
VLAI
Title
wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task Watchdog task might end between send_sig() and kthread_stop() calls, what results in the use-after-free issue. Fix this by increasing watchdog task reference count before calling send_sig() and dropping it by switching to kthread_stop_put().
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a9ffda88be7416b8336f644806c2b3ed3ce08b26 , < a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a (git)
Affected: a9ffda88be7416b8336f644806c2b3ed3ce08b26 , < df2e90d6a9955510f24f1dada78cfc439fd9fa88 (git)
Affected: a9ffda88be7416b8336f644806c2b3ed3ce08b26 , < d616bb10de79e5c2bd8a24230a1128aeaf715615 (git)
Affected: a9ffda88be7416b8336f644806c2b3ed3ce08b26 , < ed4168d1a50fef5be8eca947fbbf05a28507d265 (git)
Affected: a9ffda88be7416b8336f644806c2b3ed3ce08b26 , < d16827cb1d3936f7627d0da6044483f743ebde03 (git)
Affected: a9ffda88be7416b8336f644806c2b3ed3ce08b26 , < 658d2e46c2e9a8eb9b80c5e803ce3c89885b3366 (git)
Affected: a9ffda88be7416b8336f644806c2b3ed3ce08b26 , < 908b92231e1ded53e43fcfad5e0704d83e1b803c (git)
Affected: a9ffda88be7416b8336f644806c2b3ed3ce08b26 , < c623b63580880cc742255eaed3d79804c1b91143 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.3
Unaffected: 0 , < 3.3 (semver)
Unaffected: 5.10.259 , ≤ 5.10.* (semver)
Unaffected: 5.15.210 , ≤ 5.15.* (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.140 , ≤ 6.6.* (semver)
Unaffected: 6.12.88 , ≤ 6.12.* (semver)
Unaffected: 6.18.30 , ≤ 6.18.* (semver)
Unaffected: 7.0.7 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "redhat_vex": {
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      "cve": "CVE-2026-46180",
      "id": "CVE-2026-46180",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46180.json",
      "version": "3"
    },
    "suse_vex": {
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      "current_release_date": "2026-09-11T01:11:32Z",
      "cve": "CVE-2026-46180",
      "id": "CVE-2026-46180",
      "initial_release_date": "2026-05-29T01:15:40Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "674",
      "product_status:known_not_affected": "21",
      "product_status:recommended": "277",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-46180",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46180.json",
      "version": "14"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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