CVE-2026-53168

In the Linux kernel, the following vulnerability has been resolved: fuse: reject fuse_notify() pagecache ops on directories The operations FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE allow the FUSE daemon to actively write/read pagecache contents. For directories with FOPEN_CACHE_DIR, the pagecache is used as kernel-internal cache storage, and userspace is not supposed to have direct access to this cache - in particular, fuse_parse_cache() will hit WARN_ON() if the cache contains bogus data. Reject FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE on anything other than regular files with -EINVAL.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/12df4cfa738aefff21756728e91056d7defb0fe6
https://git.kernel.org/stable/c/15487f98863dc7156ed43c5be26d478beb82ba35
https://git.kernel.org/stable/c/99c317d7f8b7bbf3de16d20a01f363e390114cea
https://git.kernel.org/stable/c/9c954499d43aefac01c5dfb57a82b13d2dcf4b94
https://git.kernel.org/stable/c/9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6
https://git.kernel.org/stable/c/bd23fa0c16c5c86e5b7713224ffbb87d9db81cca
https://git.kernel.org/stable/c/dd92773d4d9cea010474eb08a5133c14ff6ab53a
https://git.kernel.org/stable/c/e692f0cb86204dcdb9dddc0b355407eda6394a67

Configurations

No configuration.

History

25 Jun 2026, 09:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-25 09:16

Updated : 2026-06-30 14:44

NVD link : CVE-2026-53168

Mitre link : CVE-2026-53168

CVE.ORG link : CVE-2026-53168

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-53168", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0", "lessThan": "15487f98863dc7156ed43c5be26d478beb82ba35", "versionType": "git"}, {"status": "affected", "version": "5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0", "lessThan": "bd23fa0c16c5c86e5b7713224ffbb87d9db81cca", "versionType": "git"}, {"status": "affected", "version": "5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0", "lessThan": "9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6", "versionType": "git"}, {"status": "affected", "version": "5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0", "lessThan": "dd92773d4d9cea010474eb08a5133c14ff6ab53a", "versionType": "git"}, {"status": "affected", "version": "5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0", "lessThan": "99c317d7f8b7bbf3de16d20a01f363e390114cea", "versionType": "git"}, {"status": "affected", "version": "5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0", "lessThan": "12df4cfa738aefff21756728e91056d7defb0fe6", "versionType": "git"}, {"status": "affected", "version": "5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0", "lessThan": "e692f0cb86204dcdb9dddc0b355407eda6394a67", "versionType": "git"}, {"status": "affected", "version": "5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0", "lessThan": "9c954499d43aefac01c5dfb57a82b13d2dcf4b94", "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": "4.20"}, {"status": "unaffected", "version": "0", "lessThan": "4.20", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.259", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.210", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.176", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.143", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.94", "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"}]}], "published": "2026-06-25T09:16:34.170", "references": [{"url": "https://git.kernel.org/stable/c/12df4cfa738aefff21756728e91056d7defb0fe6", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/15487f98863dc7156ed43c5be26d478beb82ba35", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/99c317d7f8b7bbf3de16d20a01f363e390114cea", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9c954499d43aefac01c5dfb57a82b13d2dcf4b94", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bd23fa0c16c5c86e5b7713224ffbb87d9db81cca", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/dd92773d4d9cea010474eb08a5133c14ff6ab53a", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e692f0cb86204dcdb9dddc0b355407eda6394a67", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Awaiting Analysis", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: reject fuse_notify() pagecache ops on directories\n\nThe operations FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE allow the\nFUSE daemon to actively write/read pagecache contents.\n\nFor directories with FOPEN_CACHE_DIR, the pagecache is used as\nkernel-internal cache storage, and userspace is not supposed to have\ndirect access to this cache - in particular, fuse_parse_cache() will hit\nWARN_ON() if the cache contains bogus data.\n\nReject FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE on anything other than\nregular files with -EINVAL."}], "lastModified": "2026-06-30T14:44:27.313", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}