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bpf: Disallow interpreter fallback for gotox insn

Published Sep 17, 2026

Description

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().

Affected products

Remediation

No remediation recorded yet.

Weaknesses (0)

No CWE recorded.

References (3)

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED
Assigner Linux
Published Sep 17, 2026
Updated Sep 17, 2026
Reserved Sep 17, 2026
Link CVE-2026-93043

CISA Vulnrichment

No data

NVD

Status Received
Modified Sep 17, 2026
Link CVE-2026-93043

Red Hat

No data

ENISA EUVD

Assigner Linux
Published Sep 17, 2026
Updated Sep 17, 2026
Link EUVD-2026-82153

GitHub

No data