CVE-2026-63864
bpf: Propagate error from visit_tailcall_insn
HIGH
8.4
CVSS Score
Published: July 19, 2026 at 02:04 PM UTC
Updated: October 26, 2026 at 04:55 PM UTC
1 product affected across 1 vendorLinux Kernel
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Severity
HIGH8.4
Exploit prediction
EPSS 0.2%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Vendor states this is fixed in 6bd96e40f31dde8f8cd79772b4df0f171cf8a915 (fixed)
Vendor states this is fixed in 945816e63c8677cf4bfde963a0774432ce8afc85 (fixed)
Vendor states this is fixed in 6.19 (unaffected)
Vendor states this is fixed in 7.0.10 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
CVSS
8.4HIGHLinux
Vector?
Quick Info
StatusANALYZED
CWE
NVD-CWE-noinfo
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