What is GHSA-xw7r-6m22-6cfw?

GHSA-xw7r-6m22-6cfw is a security advisory published by GitHub Security Advisories with High severity. In the Linux kernel, the following vulnerability has been resolved: bpf: Propagate error from...

Which CVE IDs does GHSA-xw7r-6m22-6cfw cover?

GHSA-xw7r-6m22-6cfw covers the following CVE IDs: CVE-2026-63864. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-xw7r-6m22-6cfw?

GHSA-xw7r-6m22-6cfw has a CVSS v3 base score of 8.4, published by GitHub Security Advisories.

GHSA-xw7r-6m22-6cfwHighCVSS 8.4

In the Linux kernel, the following vulnerability has been resolved: bpf: Propagate error from...

Vendor

GitHub Security Advisories

Published

July 19, 2026

Last Modified

July 20, 2026

🔗 CVE IDs covered (1)

CVE-2026-63864 →

📋 Description

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

bpf: Propagate error from visit_tailcall_insn

Commit e40f5a6bf88a ("bpf: correct stack liveness for tail calls") added visit_tailcall_insn() but did not check its return value.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-63864
https://git.kernel.org/stable/c/6bd96e40f31dde8f8cd79772b4df0f171cf8a915
https://git.kernel.org/stable/c/945816e63c8677cf4bfde963a0774432ce8afc85
https://github.com/advisories/GHSA-xw7r-6m22-6cfw