Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0 before 15487f98863dc7156ed43c5be26d478beb82ba35; affected 5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0 before bd23fa0c16c5c86e5b7713224ffbb87d9db81cca; affected 5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0 before 9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6; affected 5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0 before dd92773d4d9cea010474eb08a5133c14ff6ab53a; affected 5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0 before 99c317d7f8b7bbf3de16d20a01f363e390114cea; affected 5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0 before 12df4cfa738aefff21756728e91056d7defb0fe6; affected 5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0 before e692f0cb86204dcdb9dddc0b355407eda6394a67; affected 5d7bc7e8680c7ca4c8a4f139ce2a54ccb8131ef0 before 9c954499d43aefac01c5dfb57a82b13d2dcf4b94 |
| Linux / Linux | affected 4.20; unaffected 0 before 4.20; unaffected 5.10.259 through 5.10.*; unaffected 5.15.210 through 5.15.*; unaffected 6.1.176 through 6.1.*; unaffected 6.6.143 through 6.6.*; unaffected 6.12.94 through 6.12.*; unaffected 6.18.36 through 6.18.*; unaffected 7.0.13 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/15487f98863dc7156ed43c5be26d478beb82ba35
- https://git.kernel.org/stable/c/bd23fa0c16c5c86e5b7713224ffbb87d9db81cca
- https://git.kernel.org/stable/c/9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6
- https://git.kernel.org/stable/c/dd92773d4d9cea010474eb08a5133c14ff6ab53a
- https://git.kernel.org/stable/c/99c317d7f8b7bbf3de16d20a01f363e390114cea
- https://git.kernel.org/stable/c/12df4cfa738aefff21756728e91056d7defb0fe6
- https://git.kernel.org/stable/c/e692f0cb86204dcdb9dddc0b355407eda6394a67
- https://git.kernel.org/stable/c/9c954499d43aefac01c5dfb57a82b13d2dcf4b94
ADP enrichment
No English description supplied.