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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-46180

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

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Status
Published
Published
Updated
Assigning organization
Linux

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().

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • a9ffda88be7416b8336f644806c2b3ed3ce08b26 to < a21f735fb1017ef89c6f9dbf4d799513b4e7bd5aaffected
  • a9ffda88be7416b8336f644806c2b3ed3ce08b26 to < df2e90d6a9955510f24f1dada78cfc439fd9fa88affected
  • a9ffda88be7416b8336f644806c2b3ed3ce08b26 to < d616bb10de79e5c2bd8a24230a1128aeaf715615affected
  • a9ffda88be7416b8336f644806c2b3ed3ce08b26 to < ed4168d1a50fef5be8eca947fbbf05a28507d265affected
  • a9ffda88be7416b8336f644806c2b3ed3ce08b26 to < d16827cb1d3936f7627d0da6044483f743ebde03affected
  • a9ffda88be7416b8336f644806c2b3ed3ce08b26 to < 658d2e46c2e9a8eb9b80c5e803ce3c89885b3366affected
  • a9ffda88be7416b8336f644806c2b3ed3ce08b26 to < 908b92231e1ded53e43fcfad5e0704d83e1b803caffected
  • a9ffda88be7416b8336f644806c2b3ed3ce08b26 to < c623b63580880cc742255eaed3d79804c1b91143affected

Linux Linux

Default version status: affected

  • 3.3affected
  • 0 to < 3.3unaffected
  • 5.10.259 to ≤ 5.10.*unaffected
  • 5.15.210 to ≤ 5.15.*unaffected
  • 6.1.176 to ≤ 6.1.*unaffected
  • 6.6.140 to ≤ 6.6.*unaffected
  • 6.12.88 to ≤ 6.12.*unaffected
  • 6.18.30 to ≤ 6.18.*unaffected
  • 7.0.7 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References