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

Status: published. Published: 2026-08-15. Updated: 2026-11-06.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Linux / Linux: ≥ 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c; < 41e27a6aca608c9e04f091c29c420d03fafe0313 (affected, git); ≥ 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c; < 3ae878f262bd1445c8c31511856a99962a05fe16 (affected, git); ≥ 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c; < fde25641cbddd0c084e3320d08f755e7e6acfae5 (affected, git); ≥ 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c; < 5e88c1bc3a41d9a260dd42bae8ad18fd4f35bbe1 (affected, git); ≥ 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c; < 690fb82c4122f8c2656fa4f842275132771b68b9 (affected, git); ≥ 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c; < 00335df9da2011e095f846d645cc2e9fd2907659 (affected, git); ≥ 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c; < 9c1523803445ee0348f62b77793266dd981596e0 (affected, git). Source: CNA: Linux
- Linux / Linux: 5.15 (affected); ≥ 0; < 5.15 (unaffected, semver); ≥ 5.15.217; ≤ 5.15.* (unaffected, semver); ≥ 6.1.184; ≤ 6.1.* (unaffected, semver); ≥ 6.6.148; ≤ 6.6.* (unaffected, semver); ≥ 6.12.101; ≤ 6.12.* (unaffected, semver); ≥ 6.18.42; ≤ 6.18.* (unaffected, semver); ≥ 7.1.5; ≤ 7.1.* (unaffected, semver); ≥ 7.2; ≤ * (unaffected, original_commit_for_fix). Source: CNA: Linux

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: 0.21% as of 2026-11-06; percentile 11.44%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: Not reported

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://git.kernel.org/stable/c/41e27a6aca608c9e04f091c29c420d03fafe0313 (CNA: Linux)

- https://git.kernel.org/stable/c/3ae878f262bd1445c8c31511856a99962a05fe16 (CNA: Linux)

- https://git.kernel.org/stable/c/fde25641cbddd0c084e3320d08f755e7e6acfae5 (CNA: Linux)

- https://git.kernel.org/stable/c/5e88c1bc3a41d9a260dd42bae8ad18fd4f35bbe1 (CNA: Linux)

- https://git.kernel.org/stable/c/690fb82c4122f8c2656fa4f842275132771b68b9 (CNA: Linux)

- https://git.kernel.org/stable/c/00335df9da2011e095f846d645cc2e9fd2907659 (CNA: Linux)

- https://git.kernel.org/stable/c/9c1523803445ee0348f62b77793266dd981596e0 (CNA: Linux)

- https://git.kernel.org/stable/c/00335df9da2011e095f846d645cc2e9fd2907659 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/3ae878f262bd1445c8c31511856a99962a05fe16 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/41e27a6aca608c9e04f091c29c420d03fafe0313 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/5e88c1bc3a41d9a260dd42bae8ad18fd4f35bbe1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/690fb82c4122f8c2656fa4f842275132771b68b9 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/9c1523803445ee0348f62b77793266dd981596e0 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/fde25641cbddd0c084e3320d08f755e7e6acfae5 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

## Provenance

- CNA: Linux: https://www.cve.org/CVERecord?id=CVE-2026-72305; retrieved 2026-11-06; source updated 2026-11-06

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-72305; retrieved 2026-11-06; source updated 2026-11-06

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-72305; retrieved 2026-11-06; source updated Not reported

Revision: 2e0e1f3f82fcbcafcfc1c19d64ce16ade9a8f04de44bb93aedbea380fe38b439

Canonical: https://y2.dev/cve/CVE-2026-72305

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