CVE-2026-53167

fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios

State: Published
Severity: Not scored
Published: Jun 25, 2026
Updated: Oct 15, 2026
Reserved: Jun 9, 2026

Description

In 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before feafe8ccb1584254f59fbd4946d6ca7ef1e3e99cAffected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 651801d75ad0897dbd331b3cc6a4da3e78f60d42Affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 4e14f29473eda18fb2af082dd2fd4c12139862cdAffected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 8bef2f840b43e0879478fe3aaa9ff2f0b80798a5Affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 68a9282d5ea5b8780d59122505ad633e6daede90Affected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 56763afa013444a9d84ca1b74e4b7130942177baAffected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bdAffected 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276cAffected
LinuxLinux	2.6.36Affected before 2.6.36Not affected 5.10.260 through 5.10.Not affected 5.15.211 through 5.15.Not affected 6.1.177 through 6.1.Not affected 6.6.144 through 6.6.Not affected 6.12.95 through 6.12.Not affected 6.18.36 through 6.18.Not affected 7.0.13 through 7.0.*Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before feafe8ccb1584254f59fbd4946d6ca7ef1e3e99cAffected
2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 651801d75ad0897dbd331b3cc6a4da3e78f60d42Affected
2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 4e14f29473eda18fb2af082dd2fd4c12139862cdAffected
2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 8bef2f840b43e0879478fe3aaa9ff2f0b80798a5Affected
2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 68a9282d5ea5b8780d59122505ad633e6daede90Affected
2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 56763afa013444a9d84ca1b74e4b7130942177baAffected
2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bdAffected
2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a to before 4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276cAffected

LinuxLinux

2.6.36Affected
before 2.6.36Not affected
5.10.260 through 5.10.*Not affected
5.15.211 through 5.15.*Not affected
6.1.177 through 6.1.*Not affected
6.6.144 through 6.6.*Not affected
6.12.95 through 6.12.*Not affected
6.18.36 through 6.18.*Not affected
7.0.13 through 7.0.*Not affected
7.1 and laterNot affected

References

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