fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios

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Summary

CVECVE-2026-53167
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-25 09:16:34 UTC
Updated2026-07-06 20:11:26 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios FUSE_NOTIFY_RETRIEVE must be limited to uptodate folios; !uptodate folios can contain uninitialized data. Since FUSE_NOTIFY_RETRIEVE is intended to only return data that is already in the page cache and not wait for data from the FUSE daemon, treat !uptodate folios as if they weren't present. This only has security impact on systems that don't enable automatic zero-initialization of all page allocations via CONFIG_INIT_ON_ALLOC_DEFAULT_ON or init_on_alloc=1.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.001760000 probability, percentile 0.073620000 (date 2026-07-05)

Problem Types: CWE-908

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a feafe8ccb1584254f59fbd4946d6ca7ef1e3e99c git Not specified
CNA Linux Linux affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a 651801d75ad0897dbd331b3cc6a4da3e78f60d42 git Not specified
CNA Linux Linux affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a 4e14f29473eda18fb2af082dd2fd4c12139862cd git Not specified
CNA Linux Linux affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a 8bef2f840b43e0879478fe3aaa9ff2f0b80798a5 git Not specified
CNA Linux Linux affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a 68a9282d5ea5b8780d59122505ad633e6daede90 git Not specified
CNA Linux Linux affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a 56763afa013444a9d84ca1b74e4b7130942177ba git Not specified
CNA Linux Linux affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a 1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd git Not specified
CNA Linux Linux affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a 4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c git Not specified
CNA Linux Linux affected 2.6.36 Not specified
CNA Linux Linux unaffected 2.6.36 semver Not specified
CNA Linux Linux unaffected 5.10.260 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.211 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.177 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.144 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.95 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.36 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.13 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/8bef2f840b43e0879478fe3aaa9ff2f0b80798a5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/651801d75ad0897dbd331b3cc6a4da3e78f60d42 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/56763afa013444a9d84ca1b74e4b7130942177ba 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/68a9282d5ea5b8780d59122505ad633e6daede90 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/4e14f29473eda18fb2af082dd2fd4c12139862cd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/feafe8ccb1584254f59fbd4946d6ca7ef1e3e99c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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