CVE-2026-72401
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.
Affected versions
Linux kernel versions
6.19
and later are affected. Fixed in
7.1.5,
7.2-rc2
and their respective stable series.
References
2 totalFrequently asked questions
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What is CVE-2026-72401?
CVE-2026-72401 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.19 onward and has been patched in 7.1.5 and 7.2-rc2. CVE-2026-72401 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-2026-72401?
Yes. CVE-2026-72401 has been patched. Fixed versions include 7.1.5 and 7.2-rc2. If you are running Linux kernel 6.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-72401 actively exploited?
No. CVE-2026-72401 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.