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CVE-2025-39990 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Check the helper function is valid in get_helper_proto 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 get_helper_proto directly. Marking tail_call helper func with BPF_PTR_POISON, because it is unused by design. [1] https://lore.kernel.org/oe-lkp/[email protected]


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/3d429cb1278e995e22995ef117fa96d223a67e93 kernel.org
https://git.kernel.org/stable/c/6233715b4b714068d6c831d214a4e8792109875a kernel.org
https://git.kernel.org/stable/c/e4414b01c1cd9887bbde92f946c1ba94e40d6d64 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-39990
NVD Published Date:
10/15/2025
NVD Last Modified:
10/15/2025
Source:
kernel.org