CVE-2023-53055
fscrypt: destroy keyring after security_sb_delete()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: fscrypt: destroy keyring after security_sb_delete() fscrypt_destroy_keyring() must be called after all potentially-encrypted inodes were evicted; otherwise it cannot safely destroy the keyring. Since inodes that are in-use by the Landlock LSM don't get evicted until security_sb_delete(), this means that fscrypt_destroy_keyring() must be called *after* security_sb_delete(). This fixes a WARN_ON followed by a NULL dereference, only possible if Landlock was being used on encrypted files.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 2, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
e6f4fd85ef1ee6ab356bfbd64df28c1cb73aee7e < 992a3f3e8a0c92151dfdf65fc85567c865fd558a d7e7b9af104c7b389a0c21eb26532511bce4b510 < d77531fac6a1fd9f1db0195438ba5419d72b96c4 d7e7b9af104c7b389a0c21eb26532511bce4b510 < 497ab5d9c7852dfedab2c9de75e41b60e54b7c5d d7e7b9af104c7b389a0c21eb26532511bce4b510 < ccb820dc7d2236b1af0d54ae038a27b5b6d5ae5a 391cceee6d435e616f68631e68f5b32d480b1e67 68d15d6558a386f46d815a6ac39edecad713a1bf
Linux / Linux
6.1
References
git.kernel.org: https://git.kernel.org/stable/c/992a3f3e8a0c92151dfdf65fc85567c865fd558a git.kernel.org: https://git.kernel.org/stable/c/d77531fac6a1fd9f1db0195438ba5419d72b96c4 git.kernel.org: https://git.kernel.org/stable/c/497ab5d9c7852dfedab2c9de75e41b60e54b7c5d git.kernel.org: https://git.kernel.org/stable/c/ccb820dc7d2236b1af0d54ae038a27b5b6d5ae5a