{"id":"CVE-2026-93043","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disallow interpreter fallback for gotox insn\n\nThe interpreter does not recognize the BPF_JMP|BPF_JA|BPF_X insn, which\nis used for insn_array map","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disallow interpreter fallback for gotox insn\n\nThe interpreter does not recognize the BPF_JMP|BPF_JA|BPF_X insn, which\nis used for insn_array map. Thereafter, it wo…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 493d9e0d608339a32f568504d5fd411a261bb0af < 17da80d0c7b56579476b6644120bcfea778e531a","Linux >= 493d9e0d608339a32f568504d5fd411a261bb0af < 905f716362e1186c1a23447ca279e6d21f795cdb","Linux 6.19"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:57.543","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93043","references":[{"url":"https://git.kernel.org/stable/c/17da80d0c7b56579476b6644120bcfea778e531a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/905f716362e1186c1a23447ca279e6d21f795cdb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93043.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-93043"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536197"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93043"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93043"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93043.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-17T16:21:47.773Z","epss":0.00198,"epssPercentile":0.09453,"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-390"],"slug":"CVE-2026-93043","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disallow interpreter fallback for gotox insn\n\nThe interpreter does not recognize the BPF_JMP|BPF_JA|BPF_X insn, which\nis used for insn_array map. Thereafter, it would hit the BUG_ON() in\n___bpf_prog_run() at run time.\n\n[    2.563726] BPF interpreter: unknown opcode 0d (imm: 0x0)\n[    2.564557] ------------[ cut here ]------------\n[    2.565206] kernel BUG at kernel/bpf/core.c:2349!\n[    2.565882] Oops: invalid opcode: 0000 [#1] SMP PTI\n\nSet jit_required as true when insn_array map is used in the prog in\norder to disallow interpreter fallback for gotox insn in\ncore.c::__bpf_prog_select_runtime().\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 · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93043.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":225513,"id":"CVE-2026-93043","ts":1792498277956,"field":"cvss","old":null,"new":"5.5"},{"seq":225512,"id":"CVE-2026-93043","ts":1792498277956,"field":"severity","old":"none","new":"medium"}]}