Bug 2516236 (CVE-2026-72305) - CVE-2026-72305 kernel: VDUSE: avoid leaking information to userspace
Summary: CVE-2026-72305 kernel: VDUSE: avoid leaking information to userspace
Keywords:
Status: NEW
Alias: CVE-2026-72305
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-15 06:01 UTC by OSIDB Bzimport
Modified: 2026-08-17 11:12 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-08-15 06:01:58 UTC 
In the Linux kernel, the following vulnerability has been resolved:

VDUSE: avoid leaking information to userspace

The bounceing is not necessarily page aligned, so current VDUSE can
leak kernel information through mapping bounce pages to
userspace. Allocate bounce pages with __GFP_ZERO to avoid leaking
information to userspace.
Comment 1 gkamathe 2026-08-17 11:08:18 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026081503-CVE-2026-72305-9dfa@gregkh/T
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