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CVE-2026-46180

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().
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e463f0543565c56c392628760d64ddd150e7605ab04ada17387d0b0741ebd634
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a","status":"affected","version":"a9ffda88be7416b8336f644806c2b3ed3ce08b26","versionType":"git"},{"lessThan":"df2e90d6a9955510f24f1dada78cfc439fd9fa88","status":"affected","version":"a9ffda88be7416b8336f644806c2b3ed3ce08b26","versionType":"git"},{"lessThan":"d616bb10de79e5c2bd8a24230a1128aeaf715615","status":"affected","…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2550b76e0783309e273bb9413b01d3e739fe4bcdacbce09e11d3ded4487f1485 · sha256:ff143f6872a2ae40… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.3"},{"lessThan":"3.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2550b76e0783309e273bb9413b01d3e739fe4bcdacbce09e11d3ded4487f1485 · sha256:ff143f6872a2ae40… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a","status":"affected","version":"a9ffda88be7416b8336f644806c2b3ed3ce08b26","versionType":"git"},{"lessThan":"df2e90d6a9955510f24f1dada78cfc439fd9fa88","status":"affected","version":"a9ffda88be7416b8336f644806c2b3ed3ce08b26","versionType":"git"},{"lessThan":"d616bb10de79e5c2bd8a24230a1128aeaf715615","status":"affected","…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2550b76e0783309e273bb9413b01d3e739fe4bcdacbce09e11d3ded4487f1485 · sha256:ff143f6872a2ae40… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.3"},{"lessThan":"3.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2550b76e0783309e273bb9413b01d3e739fe4bcdacbce09e11d3ded4487f1485 · sha256:ff143f6872a2ae40… · /containers/cna/affected/1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2550b76e0783309e273bb9413b01d3e739fe4bcdacbce09e11d3ded4487f1485 · sha256:ff143f6872a2ae40… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2550b76e0783309e273bb9413b01d3e739fe4bcdacbce09e11d3ded4487f1485 · sha256:ff143f6872a2ae40… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2550b76e0783309e273bb9413b01d3e739fe4bcdacbce09e11d3ded4487f1485 · sha256:ff143f6872a2ae40… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2550b76e0783309e273bb9413b01d3e739fe4bcdacbce09e11d3ded4487f1485 · sha256:ff143f6872a2ae40… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2550b76e0783309e273bb9413b01d3e739fe4bcdacbce09e11d3ded4487f1485 · sha256:ff143f6872a2ae40… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/d616bb10de79e5c2bd8a24230a1128aeaf715615"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2550b76e0783309e273bb9413b01d3e739fe4bcdacbce09e11d3ded4487f1485 · sha256:ff143f6872a2ae40… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/df2e90d6a9955510f24f1dada78cfc439fd9fa88"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2550b76e0783309e273bb9413b01d3e739fe4bcdacbce09e11d3ded4487f1485 · sha256:ff143f6872a2ae40… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/ed4168d1a50fef5be8eca947fbbf05a28507d265"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2550b76e0783309e273bb9413b01d3e739fe4bcdacbce09e11d3ded4487f1485 · sha256:ff143f6872a2ae40… · /containers/cna/references/3

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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