{"id":"CVE-2026-98862","aliases":[],"cve":{"records":[{"id":"CVE-2026-98862","source":"Linux","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-25T10:25:14.376Z","published":"2026-10-18T15:51:23.224Z","modified":"2026-10-30T12:40:19.578Z"}],"publishers":[{"name":"Linux","role":"CNA","organizationId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","modified":"2026-10-30T12:40:19.578Z"}],"references":[{"url":"https://git.kernel.org/stable/c/8d9c97fb262067933ff4452db19e692d26622352","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/11715656540360906235d724fde5349631425073","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/0afb9202c1fb88387d0577524bf9785664bdd802","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/9aee3caeff4dd4126d84f67607b95cec8719b867","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/304960900991157e6883bdf0b39782b690545ee8","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/88633025f20ba9c32ccdb3efc86eafdf98cb825c","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/f2cc5462b78559c7628a9f8ac9a9592e7783183a","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/aa650d87a498844060eecb1d336f4d46f4d1b0b3","tags":[],"source":"Linux"}],"weaknesses":[],"applicability":[{"source":"Linux","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.3","versionEndExcluding":"7.3"}]}]}]}],"prioritization":[]},"title":"audit: fix exe mark UAF in kill_rules()","titleSource":"Linux","descriptionSource":"Linux","description":"In the Linux kernel, the following vulnerability has been resolved:\n\naudit: fix exe mark UAF in kill_rules()\n\nkill_rules() removes mixed AUDIT_DIR and AUDIT_EXE rules when an audit\ntree is pruned. It drops entry->rule.exe before removing the rule from\nthe RCU-visible filter lists.\n\nAfter a rule has been installed with AUDIT_ADD_RULE, which requires\nCAP_AUDIT_CONTROL, removing the watched directory can race with another\ntask that is still evaluating the rule. In that case, fsnotify can free\nthe executable mark before the reader reaches audit_mark_compare(),\ncausing a use-after-free.\n\nKASAN reports:\n\n    BUG: KASAN: slab-use-after-free in audit_mark_compare+0x8d/0xa0\n\nUnlink the published rules from the RCU-visible lists and retain them\non tree->rules for cleanup. If any rule has an executable mark, wait for\na single RCU grace period before removing the marks and scheduling the\nentries for freeing. Otherwise, call_rcu() already provides the required\ndeferred freeing without a synchronous wait.","score":null,"severity":"unknown","published":"2026-10-18T15:51:23.224Z","modified":"2026-10-30T12:40:19.578Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"34d99af52ad40bd498ba66970579a5bc1fb1a3bc","status":"affected","lessThan":"8d9c97fb262067933ff4452db19e692d26622352","versionType":"git"},{"version":"34d99af52ad40bd498ba66970579a5bc1fb1a3bc","status":"affected","lessThan":"11715656540360906235d724fde5349631425073","versionType":"git"},{"version":"34d99af52ad40bd498ba66970579a5bc1fb1a3bc","status":"affected","lessThan":"0afb9202c1fb88387d0577524bf9785664bdd802","versionType":"git"},{"version":"34d99af52ad40bd498ba66970579a5bc1fb1a3bc","status":"affected","lessThan":"9aee3caeff4dd4126d84f67607b95cec8719b867","versionType":"git"},{"version":"34d99af52ad40bd498ba66970579a5bc1fb1a3bc","status":"affected","lessThan":"304960900991157e6883bdf0b39782b690545ee8","versionType":"git"},{"version":"34d99af52ad40bd498ba66970579a5bc1fb1a3bc","status":"affected","lessThan":"88633025f20ba9c32ccdb3efc86eafdf98cb825c","versionType":"git"},{"version":"34d99af52ad40bd498ba66970579a5bc1fb1a3bc","status":"affected","lessThan":"f2cc5462b78559c7628a9f8ac9a9592e7783183a","versionType":"git"},{"version":"34d99af52ad40bd498ba66970579a5bc1fb1a3bc","status":"affected","lessThan":"aa650d87a498844060eecb1d336f4d46f4d1b0b3","versionType":"git"}],"defaultStatus":"unaffected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-98862"},{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"4.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.3","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"defaultStatus":"affected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-98862"}],"remediation":[],"references":["https://git.kernel.org/stable/c/8d9c97fb262067933ff4452db19e692d26622352","https://git.kernel.org/stable/c/11715656540360906235d724fde5349631425073","https://git.kernel.org/stable/c/0afb9202c1fb88387d0577524bf9785664bdd802","https://git.kernel.org/stable/c/9aee3caeff4dd4126d84f67607b95cec8719b867","https://git.kernel.org/stable/c/304960900991157e6883bdf0b39782b690545ee8","https://git.kernel.org/stable/c/88633025f20ba9c32ccdb3efc86eafdf98cb825c","https://git.kernel.org/stable/c/f2cc5462b78559c7628a9f8ac9a9592e7783183a","https://git.kernel.org/stable/c/aa650d87a498844060eecb1d336f4d46f4d1b0b3"],"sources":[{"name":"CVE","id":"CVE-2026-98862","modified":"2026-10-30T12:40:19.578Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-98862"}],"assessments":[],"sourceAffected":[],"observedAt":"2026-10-30T13:09:59.124Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T02:45:32.518Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":{"text":"The Linux kernel has a use-after-free vulnerability in the audit subsystem, affecting versions prior to 5.10.273, 5.15.224, 6.1.191, 6.6.160, 6.12.113, 6.18.56, and 7.2.10. An attacker with CAP_AUDIT_CONTROL capability can exploit this vulnerability. The impact is a use-after-free error, potentially causing undefined behavior.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T13:46:20.022Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-98862"}]}}