CVE-2026-93043

Source
https://cve.org/CVERecord?id=CVE-2026-93043
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93043.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-93043
Downstream
Published
2026-09-17T16:10:35Z
Modified
2026-09-18T03:48:43Z
Summary
bpf: Disallow interpreter fallback for gotox insn
Details

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().

Database specific
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93043.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

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"

Linux / Kernel

Package

Name
Kernel

Affected 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"