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]

INFO

Published Date :

2025-10-15T07:56:07.295Z

Last Modified :

2026-01-02T15:32:47.228Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2025-39990 vulnerability.

Vendors Products
Linux
  • Linux Kernel
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-39990.

URL Resource
https://git.kernel.org/stable/c/3d429cb1278e995e22995ef117fa96d223a67e93 cve-icon cve-icon
https://git.kernel.org/stable/c/6233715b4b714068d6c831d214a4e8792109875a cve-icon cve-icon
https://git.kernel.org/stable/c/e4414b01c1cd9887bbde92f946c1ba94e40d6d64 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025101502-CVE-2025-39990-25bc@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-39990 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-39990 cve-icon
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