{"id":"CVE-2026-98281","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nfutex: Also allocate private hash on vfork()\n\nAs Jann demonstrated, it is entirely feasible to access the mm through vfork().\nTherefore we need to allocate a private ha…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nfutex: Also allocate private hash on vfork()\n\nAs Jann demonstrated, it is entirely feasible to access the mm through vfork().\nTherefore we need to allocate a private ha…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 1dcd36420af2da5bd59306dba9caf78e3d248b1d < 5468a4855b63b30156a79e5248e01bf1a2c18dd7","Linux >= ee9dce44362b2d8132c32964656ab6dff7dfbc6a < eecbafa8cabbc4d1482f6a5e2acc25a8f934681b","Linux >= ee9dce44362b2d8132c32964656ab6dff7dfbc6a < b61b6f95d6722ddbbbd09e689fa41b55fd36f9a5","Linux 974ac49a9a068b0591a59f65c63eb06579a13091","Linux >= 6.18.33 < 6.18.54","Linux >= 7.0.10 < 7.1","Linux 7.1"],"published":"2026-10-06","updated":"2026-10-07","sourceUpdated":"2026-10-07T07:17:07.800","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98281","references":[{"url":"https://git.kernel.org/stable/c/5468a4855b63b30156a79e5248e01bf1a2c18dd7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b61b6f95d6722ddbbbd09e689fa41b55fd36f9a5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/eecbafa8cabbc4d1482f6a5e2acc25a8f934681b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98281.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98281"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2546490"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98281"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98281"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98281.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00127,"epssPercentile":0.02375,"ingestedAt":"2026-10-06T08:50:17.421Z","cwe":["CWE-908"],"scores":{"nvd":7.8,"vendor":7,"cna":7.8},"slug":"CVE-2026-98281","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nfutex: Also allocate private hash on vfork()\n\nAs Jann demonstrated, it is entirely feasible to access the mm through vfork().\nTherefore we need to allocate a private hash on vfork() as well as any other\nCLONE_VM user.\n\nSpecifically, it must be avoided to have (private) futex waiters before\nallocating the private hash.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-10 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98281.json)","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":217308,"id":"CVE-2026-98281","ts":1791361311468,"field":"cvss","old":null,"new":"7.8"},{"seq":217307,"id":"CVE-2026-98281","ts":1791361311468,"field":"severity","old":"none","new":"high"}]}