Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix insn_aux_data leak on verifier err_free_env path When bpf_check() allocates env->insn_aux_data successfully but later fails to allocate env->succ, it jumps directly to err_free_env. The existing vfree(env->insn_aux_data) sits before the err_free_env label, so that direct jump bypasses it and leaks insn_aux_data. Move vfree(env->insn_aux_data) into err_free_env so all early and late exit paths release it consistently.
References
- https://git.kernel.org/stable/c/26490a375cb9be9bac96b5171610fd85ca6c2305
- https://git.kernel.org/stable/c/d8df91756890de058646597367507b239a6d2025
FAQ
What is CVE-2026-72401?
CVE-2026-72401 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: bpf: Fix insn_aux_data leak on verifier err_free_env path When bpf_check() allocates env->insn_aux_data successfully but later fai...
How severe is CVE-2026-72401?
CVSS scoring is not yet available for CVE-2026-72401. Check NVD for updates.
Is there a patch for CVE-2026-72401?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.