{"id":"CVE-2022-42703","title":"mm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anon_vma double reuse.","summary":"mm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anon_vma double reuse.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-416"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 5.19.7"],"patched":["linux_kernel 5.19.7"],"published":"2022-10-09","updated":"2026-10-14","sourceUpdated":"2026-10-14T19:16:51.153","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-42703","references":[{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=2351","label":"cve@mitre.org"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.7","label":"cve@mitre.org"},{"url":"https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2555283eb40df89945557273121e9393ef9b542b","label":"cve@mitre.org"},{"url":"https://github.com/torvalds/linux/commit/2555283eb40df89945557273121e9393ef9b542b","label":"cve@mitre.org"},{"url":"https://googleprojectzero.blogspot.com/2022/12/exploiting-CVE-2022-42703-bringing-back-the-stack-attack.html","label":"cve@mitre.org"},{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=2351","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.7","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2555283eb40df89945557273121e9393ef9b542b","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/2555283eb40df89945557273121e9393ef9b542b","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://googleprojectzero.blogspot.com/2022/12/exploiting-CVE-2022-42703-bringing-back-the-stack-attack.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-794697.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-831302.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","exploit-available","cve.org"],"epss":0.0092,"epssPercentile":0.60093,"exploits":{"github":2,"githubRepos":["https://github.com/Squirre17/hbp-attack-demo","https://github.com/Satheesh575555/linux-4.1.15_CVE-2022-42703"],"checkedAt":"2026-10-27T16:40:50.618Z"},"exploitAvailable":true,"ingestedAt":"2026-10-14T19:49:57.519Z","slug":"CVE-2022-42703","body":"## Overview\n\nmm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anon_vma double reuse.\n\n## Affected\n\n- `linux_kernel < 5.19.7`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 5.19.7`","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":30.3,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[]}