{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46180", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.103Z", "datePublished": "2026-05-28T09:36:33.904Z", "dateUpdated": "2026-05-28T09:36:33.904Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-28T09:36:33.904Z"}, "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()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"], "versions": [{"version": "a9ffda88be7416b8336f644806c2b3ed3ce08b26", "lessThan": "ed4168d1a50fef5be8eca947fbbf05a28507d265", "status": "affected", "versionType": "git"}, {"version": "a9ffda88be7416b8336f644806c2b3ed3ce08b26", "lessThan": "d16827cb1d3936f7627d0da6044483f743ebde03", "status": "affected", "versionType": "git"}, {"version": "a9ffda88be7416b8336f644806c2b3ed3ce08b26", "lessThan": "658d2e46c2e9a8eb9b80c5e803ce3c89885b3366", "status": "affected", "versionType": "git"}, {"version": "a9ffda88be7416b8336f644806c2b3ed3ce08b26", "lessThan": "908b92231e1ded53e43fcfad5e0704d83e1b803c", "status": "affected", "versionType": "git"}, {"version": "a9ffda88be7416b8336f644806c2b3ed3ce08b26", "lessThan": "c623b63580880cc742255eaed3d79804c1b91143", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"], "versions": [{"version": "3.3", "status": "affected"}, {"version": "0", "lessThan": "3.3", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.88", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.30", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1-rc3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "6.6.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "6.12.88"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "6.18.30"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "7.0.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "7.1-rc3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ed4168d1a50fef5be8eca947fbbf05a28507d265"}, {"url": "https://git.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03"}, {"url": "https://git.kernel.org/stable/c/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366"}, {"url": "https://git.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803c"}, {"url": "https://git.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143"}], "title": "wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task", "x_generator": {"engine": "bippy-1.2.0"}}}}