Bug 2525434 (CVE-2026-80607)

Summary:	CVE-2026-80607 kernel: tracing/probes: Remove WARN_ON_ONCE from parse_btf_arg
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	rhel-process-autobot, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Linux kernel's tracing/probes component. A local user could trigger a kernel warning (WARN_ON_ONCE) by adding a kprobe event based on a raw address with a BTF (BPF Type Format) parameter. This could lead to minor information disclosure through kernel log messages.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-08-28 07:44:47 UTC

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

tracing/probes: Remove WARN_ON_ONCE from parse_btf_arg

Sashiko found that user can cause this WARN_ON_ONCE() easily
with adding a kprobe event based on a raw address with BTF
parameter.

Since this is not an unexpected condition, remove the
WARN_ON_ONCE().

Comment 1 gkamathe 2026-09-01 09:29:09 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026082833-CVE-2026-80607-28a9@gregkh/T