Bug 2535114 (CVE-2026-89925) - CVE-2026-89925 kernel: KVM: s390: Fix memory leak in guest debug handling
Summary: CVE-2026-89925 kernel: KVM: s390: Fix memory leak in guest debug handling
Keywords:
Status: NEW
Alias: CVE-2026-89925
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-16 10:48 UTC by OSIDB Bzimport
Modified: 2026-09-23 13:55 UTC (History)
17 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-16 10:48:35 UTC 
In the Linux kernel, the following vulnerability has been resolved:

KVM: s390: Fix memory leak in guest debug handling

bp_data is freed only for the error case by kfree(bp_data).
Every successful KVM_SET_GUEST_DEBUG will leak bp_data.
Comment 1 Keith Grant 2026-09-16 15:46:33 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89925.mbox
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