What’s Vulnerable › Vulnerabilities

CVE-2026-72305: VDUSE: avoid leaking information to userspace

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-08-23

Description

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.

Affected products

• Linux kernel: 5.15 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/00335df9da2011e095f846d645cc2e9fd2907659
• https://git.kernel.org/stable/c/3ae878f262bd1445c8c31511856a99962a05fe16
• https://git.kernel.org/stable/c/41e27a6aca608c9e04f091c29c420d03fafe0313
• https://git.kernel.org/stable/c/5e88c1bc3a41d9a260dd42bae8ad18fd4f35bbe1
• https://git.kernel.org/stable/c/690fb82c4122f8c2656fa4f842275132771b68b9
• https://git.kernel.org/stable/c/9c1523803445ee0348f62b77793266dd981596e0
• https://git.kernel.org/stable/c/fde25641cbddd0c084e3320d08f755e7e6acfae5

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