Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Disallow interpreter fallback for gotox insn The interpreter does not recognize the BPF_JMP|BPF_JA|BPF_X insn, which is used for insn_array map. Thereafter, it would hit the BUG_ON() in ___bpf_prog_run() at run time. [ 2.563726] BPF interpreter: unknown opcode 0d (imm: 0x0) [ 2.564557] ------------[ cut here ]------------ [ 2.565206] kernel BUG at kernel/bpf/core.c:2349! [ 2.565882] Oops: invalid opcode: 0000 [#1] SMP PTI Set jit_required as true when insn_array map is used in the prog in order to disallow interpreter fallback for gotox insn in core.c::__bpf_prog_select_runtime().
References
- https://git.kernel.org/stable/c/17da80d0c7b56579476b6644120bcfea778e531a
- https://git.kernel.org/stable/c/905f716362e1186c1a23447ca279e6d21f795cdb
FAQ
What is CVE-2026-93043?
CVE-2026-93043 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: bpf: Disallow interpreter fallback for gotox insn The interpreter does not recognize the BPF_JMP|BPF_JA|BPF_X insn, which is used ...
How severe is CVE-2026-93043?
CVSS scoring is not yet available for CVE-2026-93043. Check NVD for updates.
Is there a patch for CVE-2026-93043?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.