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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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e57a60b062f4c0beb96c37eecb8483460f6728fdafab99757e4d029aad3a832b
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/fuse/dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"15487f98863dc7156ed43c5be26d478beb82ba35","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0","versionType":"git"},{"lessThan":"bd23fa0c16c5c86e5b7713224ffbb87d9db81cca","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0","versionType":"git"},{"lessThan":"9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54cc…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f772b43a11efd29e683572ee85d9d6231f131f2754b1ed61edd34e67c20b93ed · sha256:0fae9876d9f459be… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/fuse/dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.20"},{"lessThan":"4.20","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f772b43a11efd29e683572ee85d9d6231f131f2754b1ed61edd34e67c20b93ed · sha256:0fae9876d9f459be… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/fuse/dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"15487f98863dc7156ed43c5be26d478beb82ba35","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0","versionType":"git"},{"lessThan":"bd23fa0c16c5c86e5b7713224ffbb87d9db81cca","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0","versionType":"git"},{"lessThan":"9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6","status":"affected","version":"5d7bc7e8680c7ca4c8a4f139ce2a54cc…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f772b43a11efd29e683572ee85d9d6231f131f2754b1ed61edd34e67c20b93ed · sha256:0fae9876d9f459be… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/fuse/dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.20"},{"lessThan":"4.20","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f772b43a11efd29e683572ee85d9d6231f131f2754b1ed61edd34e67c20b93ed · sha256:0fae9876d9f459be… · /containers/cna/affected/1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/12df4cfa738aefff21756728e91056d7defb0fe6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f772b43a11efd29e683572ee85d9d6231f131f2754b1ed61edd34e67c20b93ed · sha256:0fae9876d9f459be… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/15487f98863dc7156ed43c5be26d478beb82ba35"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f772b43a11efd29e683572ee85d9d6231f131f2754b1ed61edd34e67c20b93ed · sha256:0fae9876d9f459be… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/99c317d7f8b7bbf3de16d20a01f363e390114cea"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f772b43a11efd29e683572ee85d9d6231f131f2754b1ed61edd34e67c20b93ed · sha256:0fae9876d9f459be… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/9c954499d43aefac01c5dfb57a82b13d2dcf4b94"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f772b43a11efd29e683572ee85d9d6231f131f2754b1ed61edd34e67c20b93ed · sha256:0fae9876d9f459be… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f772b43a11efd29e683572ee85d9d6231f131f2754b1ed61edd34e67c20b93ed · sha256:0fae9876d9f459be… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/bd23fa0c16c5c86e5b7713224ffbb87d9db81cca"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f772b43a11efd29e683572ee85d9d6231f131f2754b1ed61edd34e67c20b93ed · sha256:0fae9876d9f459be… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/dd92773d4d9cea010474eb08a5133c14ff6ab53a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f772b43a11efd29e683572ee85d9d6231f131f2754b1ed61edd34e67c20b93ed · sha256:0fae9876d9f459be… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/e692f0cb86204dcdb9dddc0b355407eda6394a67"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f772b43a11efd29e683572ee85d9d6231f131f2754b1ed61edd34e67c20b93ed · sha256:0fae9876d9f459be… · /containers/cna/references/6

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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