CVE-2026-53167
fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios
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.
INFO
Published Date :
June 25, 2026, 9:16 a.m.
Last Modified :
July 6, 2026, 8:11 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to include the fuse fix.
- Ensure CONFIG_INIT_ON_ALLOC_DEFAULT_ON is enabled.
- Configure systems with init_on_alloc=1.
Public PoC/Exploit Available at Github
CVE-2026-53167 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-53167.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53167 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-53167
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
DSA and DLA for Debian last 14 days
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53167 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53167 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 06, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-908 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.13 *cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.36 up to (excluding) 6.18.36 Added Reference Type kernel.org: https://git.kernel.org/stable/c/1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4e14f29473eda18fb2af082dd2fd4c12139862cd Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/56763afa013444a9d84ca1b74e4b7130942177ba Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/651801d75ad0897dbd331b3cc6a4da3e78f60d42 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/68a9282d5ea5b8780d59122505ad633e6daede90 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8bef2f840b43e0879478fe3aaa9ff2f0b80798a5 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/feafe8ccb1584254f59fbd4946d6ca7ef1e3e99c Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 04, 2026
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/4e14f29473eda18fb2af082dd2fd4c12139862cd Added Reference https://git.kernel.org/stable/c/651801d75ad0897dbd331b3cc6a4da3e78f60d42 Added Reference https://git.kernel.org/stable/c/68a9282d5ea5b8780d59122505ad633e6daede90 Added Reference https://git.kernel.org/stable/c/8bef2f840b43e0879478fe3aaa9ff2f0b80798a5 Added Reference https://git.kernel.org/stable/c/feafe8ccb1584254f59fbd4946d6ca7ef1e3e99c Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': '56763afa013444a9d84ca1b74e4b7130942177ba', 'versionType': 'git'}, {'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': '1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd', 'versionType': 'git'}, {'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': '4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c', 'versionType': 'git'}], 'programFiles': ['fs/fuse/dev.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.36'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.36', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.36', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.13', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/fuse/dev.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': 'feafe8ccb1584254f59fbd4946d6ca7ef1e3e99c', 'versionType': 'git'}, {'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': '651801d75ad0897dbd331b3cc6a4da3e78f60d42', 'versionType': 'git'}, {'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': '4e14f29473eda18fb2af082dd2fd4c12139862cd', 'versionType': 'git'}, {'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': '8bef2f840b43e0879478fe3aaa9ff2f0b80798a5', 'versionType': 'git'}, {'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': '68a9282d5ea5b8780d59122505ad633e6daede90', 'versionType': 'git'}, {'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': '56763afa013444a9d84ca1b74e4b7130942177ba', 'versionType': 'git'}, {'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': '1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd', 'versionType': 'git'}, {'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': '4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c', 'versionType': 'git'}], 'programFiles': ['fs/fuse/dev.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.36'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.36', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.260', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.211', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.177', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.144', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.95', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.36', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.13', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/fuse/dev.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 25, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': '56763afa013444a9d84ca1b74e4b7130942177ba', 'versionType': 'git'}, {'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': '1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd', 'versionType': 'git'}, {'status': 'affected', 'version': '2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a', 'lessThan': '4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c', 'versionType': 'git'}], 'programFiles': ['fs/fuse/dev.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.36'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.36', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.36', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.13', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/fuse/dev.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd Added Reference https://git.kernel.org/stable/c/4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c Added Reference https://git.kernel.org/stable/c/56763afa013444a9d84ca1b74e4b7130942177ba