CVE-2026-72401
- Source
- https://cve.org/CVERecord?id=CVE-2026-72401
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72401.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-72401
- Downstream
- Published
- 2026-08-15T05:56:26.197Z
- Modified
- 2026-08-16T03:48:41.154048304Z
- Summary
- bpf: Fix insn_aux_data leak on verifier err_free_env path
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix insnauxdata leak on verifier errfreeenv path
When bpfcheck() allocates env->insnauxdata successfully but later fails to allocate env->succ, it jumps directly to errfree_env.
The existing vfree(env->insnauxdata) sits before the errfreeenv label, so that direct jump bypasses it and leaks insnauxdata.
Move vfree(env->insnauxdata) into errfreeenv so all early and late exit paths release it consistently.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72401.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/26490a375cb9be9bac96b5171610fd85ca6c2305
- https://git.kernel.org/stable/c/d8df91756890de058646597367507b239a6d2025
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72401.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-72401
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git