CVE-2026-46180

HIGH EPSS 3.3%
Published May 28, 20261mo ago · Modified Jun 19, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published May 28, 2026 1mo ago
Last Modified Jun 19, 2026 1w ago

Description

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().

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
3.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel*≥3.3  –  <6.6.140
linuxlinux_kernel*≥6.7  –  <6.12.88
linuxlinux_kernel*≥6.13  –  <6.18.30
linuxlinux_kernel*≥6.19  –  <7.0.7
linuxlinux_kernel7.1any
linuxlinux_kernel7.1any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a
  • git.kernel.org https://git.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d616bb10de79e5c2bd8a24230a1128aeaf715615
  • git.kernel.org https://git.kernel.org/stable/c/df2e90d6a9955510f24f1dada78cfc439fd9fa88
  • git.kernel.org https://git.kernel.org/stable/c/ed4168d1a50fef5be8eca947fbbf05a28507d265
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ed4168d1a50fef5be8eca947fbbf05a28507d265
    Patch