CVE-2026-53167
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Weakness
- CWE-908
- Record status
- Modified
Affected
- Linux Kernel < 6.18.36
- Linux Kernel < 7.0.13
- Linux Kernel 7.1
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-53167.md and follow it. Check whether this project is affected by CVE-2026-53167. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd
- https://git.kernel.org/stable/c/4e14f29473eda18fb2af082dd2fd4c12139862cd
- https://git.kernel.org/stable/c/4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c
- https://git.kernel.org/stable/c/56763afa013444a9d84ca1b74e4b7130942177ba
- https://git.kernel.org/stable/c/651801d75ad0897dbd331b3cc6a4da3e78f60d42
- https://git.kernel.org/stable/c/68a9282d5ea5b8780d59122505ad633e6daede90
- https://git.kernel.org/stable/c/8bef2f840b43e0879478fe3aaa9ff2f0b80798a5
- https://git.kernel.org/stable/c/feafe8ccb1584254f59fbd4946d6ca7ef1e3e99c
References
- https://git.kernel.org/stable/c/1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd
- https://git.kernel.org/stable/c/4e14f29473eda18fb2af082dd2fd4c12139862cd
- https://git.kernel.org/stable/c/4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c
- https://git.kernel.org/stable/c/56763afa013444a9d84ca1b74e4b7130942177ba
- https://git.kernel.org/stable/c/651801d75ad0897dbd331b3cc6a4da3e78f60d42
- https://git.kernel.org/stable/c/68a9282d5ea5b8780d59122505ad633e6daede90
- https://git.kernel.org/stable/c/8bef2f840b43e0879478fe3aaa9ff2f0b80798a5
- https://git.kernel.org/stable/c/feafe8ccb1584254f59fbd4946d6ca7ef1e3e99c
- https://project-zero.issues.chromium.org/issues/514653451
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html