CVE-2026-63864

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Source
https://cve.org/CVERecord?id=CVE-2026-63864
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63864.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-63864
Downstream
Published
2026-07-19T14:04:50.605Z
Modified
2026-07-22T05:30:05.358457256Z
Severity
  • 8.4 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
bpf: Propagate error from visit_tailcall_insn
Details

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

bpf: Propagate error from visittailcallinsn

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

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63864.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e40f5a6bf88a781d5f81bc6b8aab9ac31d8c98dd
Fixed
945816e63c8677cf4bfde963a0774432ce8afc85
Fixed
6bd96e40f31dde8f8cd79772b4df0f171cf8a915

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63864.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.0.10

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63864.json"