What is GHSA-xq4r-6342-2fvw?

GHSA-xq4r-6342-2fvw is a security advisory published by GitHub Security Advisories with High severity. In the Linux kernel, the following vulnerability has been resolved: bpf: Compare iterator types...

Which CVE IDs does GHSA-xq4r-6342-2fvw cover?

GHSA-xq4r-6342-2fvw covers the following CVE IDs: CVE-2026-90217. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-xq4r-6342-2fvw?

GHSA-xq4r-6342-2fvw has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-xq4r-6342-2fvwHighCVSS 7.8

In the Linux kernel, the following vulnerability has been resolved: bpf: Compare iterator types...

Vendor

GitHub Security Advisories

Published

September 17, 2026

Last Modified

September 18, 2026

🔗 CVE IDs covered (1)

CVE-2026-90217 →

📋 Description

In the Linux kernel, the following vulnerability has been resolved:

bpf: Compare iterator types during state pruning

An iterator stack slot can be MEM_RCU or PTR_UNTRUSTED. These states must not be equal, or the verifier can prune an unsafe path.

Compare the pointer type for STACK_ITER slots.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-90217
https://git.kernel.org/stable/c/6424b9cde9edc7f2098115bbfd1ee3d84a958380
https://git.kernel.org/stable/c/83608e303b95d07afba1c15da0b5d9e513c2f15a
https://github.com/advisories/GHSA-xq4r-6342-2fvw