CVE-2026-93044
In the Linux kernel, the following vulnerability has been resolved: bpf: Disallow interpreter fallback for arena-related insns Since the interpreter does not support the arena-related insns, interpreter fallback should not be allowed for these insns in core.c::__bpf_prog_select_runtime(). Currently, when the interpreter executes the arena ST/LDX/STX insns, it would hit the BUG_ON() in ___bpf_prog_run() at run time. [ 2.579196] BPF interpreter: unknown opcode a2 (imm: 0x0) [ 2.579998] ------------[ cut here ]------------ [ 2.580652] kernel BUG at kernel/bpf/core.c:2349! [ 2.581314] Oops: invalid opcode: 0000 [#1] SMP PTI Set jit_required as true when arena map is used in the prog to disallow interpreter fallback for arena-related insns.
Affected versions
Linux kernel versions
6.9
and later are affected. Fixed in
7.2.6,
7.3-rc1
and their respective stable series.
References
2 totalFrequently asked questions
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What is CVE-2026-93044?
CVE-2026-93044 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.9 onward and has been patched in 7.2.6 and 7.3-rc1. CVE-2026-93044 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-93044?
Yes. CVE-2026-93044 has been patched. Fixed versions include 7.2.6 and 7.3-rc1. If you are running Linux kernel 6.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-93044 actively exploited?
No. CVE-2026-93044 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.