{"id":"CVE-2026-92486","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix CFI mismatch in task work callback\n\nBPF subprograms use the bpf_callback_t ABI, but task work invokes the\ncallback through a three-argument function pointer","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix CFI mismatch in task work callback\n\nBPF subprograms use the bpf_callback_t ABI, but task work invokes the\ncallback through a three-argument function pointer. T…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 38aa7003e369802f81a078f6673d10d97013f04f < 85a33c910edc3651f68b17ae3c597c012545958f","Linux >= 38aa7003e369802f81a078f6673d10d97013f04f < a2cbab47f44e9ea8c5a161ecba1b6bb8535771eb","Linux >= 38aa7003e369802f81a078f6673d10d97013f04f < 2805abd089576799b15092949420e3f8ba97fabd","Linux 6.18"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:50.697","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92486","references":[{"url":"https://git.kernel.org/stable/c/2805abd089576799b15092949420e3f8ba97fabd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/85a33c910edc3651f68b17ae3c597c012545958f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a2cbab47f44e9ea8c5a161ecba1b6bb8535771eb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92486.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-92486"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536290"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-92486"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92486"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-92486.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-17T16:21:47.786Z","epss":0.00206,"epssPercentile":0.10616,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-628"],"slug":"CVE-2026-92486","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix CFI mismatch in task work callback\n\nBPF subprograms use the bpf_callback_t ABI, but task work invokes the\ncallback through a three-argument function pointer. This trips kCFI.\n\nStore and invoke the callback as bpf_callback_t.\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** · Low · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92486.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":225477,"id":"CVE-2026-92486","ts":1792498264517,"field":"cvss","old":null,"new":"5.5"},{"seq":225476,"id":"CVE-2026-92486","ts":1792498264517,"field":"severity","old":"none","new":"medium"}]}