CVE-2026-53167
Full vulnerability record from the local CVENow database.
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.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-06-25 09:16:34.073000
Last modified
2026-11-06 17:18:12.213000
View original CVE JSON
{
"id": "CVE-2026-53167",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-06-25T09:16:34.073",
"lastModified": "2026-11-06T17:18:12.213",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios\n\nFUSE_NOTIFY_RETRIEVE must be limited to uptodate folios; !uptodate folios\ncan contain uninitialized data.\nSince FUSE_NOTIFY_RETRIEVE is intended to only return data that is already\nin the page cache and not wait for data from the FUSE daemon, treat\n!uptodate folios as if they weren't present.\n\nThis only has security impact on systems that don't enable automatic\nzero-initialization of all page allocations via\nCONFIG_INIT_ON_ALLOC_DEFAULT_ON or init_on_alloc=1."
}
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