---
id: CVE-2026-93043
title: |-
  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
summary: |-
  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 wo…
severity: none
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
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.773Z'
epss: 0.00155
epssPercentile: 0.05119
---

## Overview

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().

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.