CVE - CVE-2023-53055

CVE-ID
CVE-2023-53055	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/497ab5d9c7852dfedab2c9de75e41b60e54b7c5d URL:https://git.kernel.org/stable/c/497ab5d9c7852dfedab2c9de75e41b60e54b7c5d MISC:https://git.kernel.org/stable/c/992a3f3e8a0c92151dfdf65fc85567c865fd558a URL:https://git.kernel.org/stable/c/992a3f3e8a0c92151dfdf65fc85567c865fd558a MISC:https://git.kernel.org/stable/c/ccb820dc7d2236b1af0d54ae038a27b5b6d5ae5a URL:https://git.kernel.org/stable/c/ccb820dc7d2236b1af0d54ae038a27b5b6d5ae5a MISC:https://git.kernel.org/stable/c/d77531fac6a1fd9f1db0195438ba5419d72b96c4 URL:https://git.kernel.org/stable/c/d77531fac6a1fd9f1db0195438ba5419d72b96c4
Assigning CNA
kernel.org
Date Record Created
20250502	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250502)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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