Vulnerability-Lookup

FKIE_CVE-2026-46180

Vulnerability from fkie_nvd - Published: 2026-05-28 10:16 - Updated: 2026-06-11 03:00

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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().

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803c	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ed4168d1a50fef5be8eca947fbbf05a28507d265	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.1
linux	linux_kernel	7.1

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5466053F-31C7-41D6-AF97-CC6D33C52185",
              "versionEndExcluding": "6.6.140",
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              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5AFBE0EC-CCDF-4207-AE92-ABF958125CA4",
              "versionEndExcluding": "6.12.88",
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            },
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              "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390",
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task\n\nWatchdog task might end between send_sig() and kthread_stop() calls, what\nresults in the use-after-free issue. Fix this by increasing watchdog task\nreference count before calling send_sig() and dropping it by switching to\nkthread_stop_put()."
    }
  ],
  "id": "CVE-2026-46180",
  "lastModified": "2026-06-11T03:00:18.130",
  "metrics": {
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-05-28T10:16:33.643",
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-416"
        }
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-05-28 09:36

Title

wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task

Summary

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/ed4168d1a50fef5be…
https://git.kernel.org/stable/c/d16827cb1d3936f76…
https://git.kernel.org/stable/c/658d2e46c2e9a8eb9…
https://git.kernel.org/stable/c/908b92231e1ded53e…
https://git.kernel.org/stable/c/c623b63580880cc74…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a9ffda88be7416b8336f644806c2b3ed3ce08b26 , < ed4168d1a50fef5be8eca947fbbf05a28507d265 (git) Affected: a9ffda88be7416b8336f644806c2b3ed3ce08b26 , < d16827cb1d3936f7627d0da6044483f743ebde03 (git) Affected: a9ffda88be7416b8336f644806c2b3ed3ce08b26 , < 658d2e46c2e9a8eb9b80c5e803ce3c89885b3366 (git) Affected: a9ffda88be7416b8336f644806c2b3ed3ce08b26 , < 908b92231e1ded53e43fcfad5e0704d83e1b803c (git) Affected: a9ffda88be7416b8336f644806c2b3ed3ce08b26 , < c623b63580880cc742255eaed3d79804c1b91143 (git)
Linux	Linux	Affected: 3.3 Unaffected: 0 , < 3.3 (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-rc3 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-46180

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

Tags

Sightings

Nomenclature