{"id":"CVE-2026-93043","summary":"bpf: Disallow interpreter fallback for gotox insn","details":"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 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().","modified":"2026-09-18T03:48:43.600469521Z","published":"2026-09-17T16:10:35.602Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93043.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/17da80d0c7b56579476b6644120bcfea778e531a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/905f716362e1186c1a23447ca279e6d21f795cdb"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93043.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93043"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"493d9e0d608339a32f568504d5fd411a261bb0af"},{"fixed":"17da80d0c7b56579476b6644120bcfea778e531a"},{"fixed":"905f716362e1186c1a23447ca279e6d21f795cdb"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93043.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93043.json"}}],"schema_version":"1.9.0"}