{"id":"CVE-2026-98196","revision":"3c251197ab364b2d97754e20cadf8245","records":[{"revision":"3c251197ab364b2d97754e20cadf8245","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98196","aliases":[],"title":"wifi: brcmsmac: fix UAF in brcms_free_timer()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmsmac: fix UAF in brcms_free_timer()\n\nbrcms_free_timer() calls brcms_del_timer() which uses the non-synchronous\ncancel_delayed_work() to cancel the timer's underlying delayed work.  If\nthe work callback (_brcms_timer) is already running, cancel_delayed_work()\nreturns false without waiting, and brcms_free_timer() proceeds to kfree(t)\nwhile the callback still accesses t through container_of().\n\nAdd an explicit cancel_delayed_work_sync() after brcms_del_timer() to\nguarantee that any in-flight callback has completed before the timer\nstructure is freed.","state":0,"publishedAt":"2026-10-06T08:44:35.616+00:00","modifiedAt":"2026-10-19T09:15:27.411+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5b435de0d786869c95d1962121af0d7df2542009\",\n                            \"lessThan\": \"10eeb0b29fd7f52487c9ae573e8d79c210a0095d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5b435de0d786869c95d1962121af0d7df2542009\",\n                            \"lessThan\": \"74acccc928851f69184271832d690607877122af\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5b435de0d786869c95d1962121af0d7df2542009\",\n                            \"lessThan\": \"050d2486e8ed2c0a23b87249ccd23e8072721391\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5b435de0d786869c95d1962121af0d7df2542009\",\n                            \"lessThan\": \"856dabd5f2617efb23c043be9e1b22a9e6e97c41\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5b435de0d786869c95d1962121af0d7df2542009\",\n                            \"lessThan\": \"2a4841ff0b74b495cddd31ae324e922217fc2f13\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5b435de0d786869c95d1962121af0d7df2542009\",\n                            \"lessThan\": \"1edb3ddd261e973a4d577c0547e63bfa25a8170d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5b435de0d786869c95d1962121af0d7df2542009\",\n                            \"lessThan\": \"777cb6bba59e875b16a1d8897a483a5fecfcd5d2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5b435de0d786869c95d1962121af0d7df2542009\",\n                            \"lessThan\": \"1eeca1d5e0920fbdad6449768fd2d4364e714180\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.2\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.54\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.8\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/10eeb0b29fd7f52487c9ae573e8d79c210a0095d","https://git.kernel.org/stable/c/74acccc928851f69184271832d690607877122af","https://git.kernel.org/stable/c/050d2486e8ed2c0a23b87249ccd23e8072721391","https://git.kernel.org/stable/c/856dabd5f2617efb23c043be9e1b22a9e6e97c41","https://git.kernel.org/stable/c/2a4841ff0b74b495cddd31ae324e922217fc2f13","https://git.kernel.org/stable/c/1edb3ddd261e973a4d577c0547e63bfa25a8170d","https://git.kernel.org/stable/c/777cb6bba59e875b16a1d8897a483a5fecfcd5d2","https://git.kernel.org/stable/c/1eeca1d5e0920fbdad6449768fd2d4364e714180"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98196","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98196","identifiers":["CVE-2026-98196"]},"retained":false,"historicalAffected":[]}],"coverage":[]}