CVE-2025-39990
- Source
- https://cve.org/CVERecord?id=CVE-2025-39990
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-39990.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-39990
- Downstream
- Related
- Published
- 2025-10-15T07:56:07.295Z
- Modified
- 2026-03-20T12:43:08.095040Z
- Summary
- bpf: Check the helper function is valid in get_helper_proto
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpf: Check the helper function is valid in gethelperproto
kernel test robot reported verifier bug [1] where the helper func pointer could be NULL due to disabled config option.
As Alexei suggested we could check on that in gethelperproto directly. Marking tailcall helper func with BPFPTR_POISON, because it is unused by design.
[1] https://lore.kernel.org/oe-lkp/202507160818.68358831-lkp@intel.com
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39990.json" }- References
-
- https://git.kernel.org/stable/c/3d429cb1278e995e22995ef117fa96d223a67e93
- https://git.kernel.org/stable/c/6233715b4b714068d6c831d214a4e8792109875a
- https://git.kernel.org/stable/c/e4414b01c1cd9887bbde92f946c1ba94e40d6d64
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39990.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-39990
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git