{"id":"CVE-2023-53055","summary":"fscrypt: destroy keyring after security_sb_delete()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nfscrypt: destroy keyring after security_sb_delete()\n\nfscrypt_destroy_keyring() must be called after all potentially-encrypted\ninodes were evicted; otherwise it cannot safely destroy the keyring.\nSince inodes that are in-use by the Landlock LSM don't get evicted until\nsecurity_sb_delete(), this means that fscrypt_destroy_keyring() must be\ncalled *after* security_sb_delete().\n\nThis fixes a WARN_ON followed by a NULL dereference, only possible if\nLandlock was being used on encrypted files.","modified":"2026-08-12T03:51:17.150038525Z","published":"2025-05-02T15:55:10.138Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53055.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/497ab5d9c7852dfedab2c9de75e41b60e54b7c5d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/992a3f3e8a0c92151dfdf65fc85567c865fd558a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ccb820dc7d2236b1af0d54ae038a27b5b6d5ae5a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d77531fac6a1fd9f1db0195438ba5419d72b96c4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53055.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53055"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"e6f4fd85ef1ee6ab356bfbd64df28c1cb73aee7e"},{"fixed":"992a3f3e8a0c92151dfdf65fc85567c865fd558a"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d7e7b9af104c7b389a0c21eb26532511bce4b510"},{"fixed":"d77531fac6a1fd9f1db0195438ba5419d72b96c4"},{"fixed":"497ab5d9c7852dfedab2c9de75e41b60e54b7c5d"},{"fixed":"ccb820dc7d2236b1af0d54ae038a27b5b6d5ae5a"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"391cceee6d435e616f68631e68f5b32d480b1e67"},{"last_affected":"68d15d6558a386f46d815a6ac39edecad713a1bf"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.15.78"},{"fixed":"5.15.105"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.10.154"},{"fixed":"5.11"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.0.8"},{"fixed":"6.1"}]}],"versions":["v5.15.104","v5.15.103","v5.15.102","v5.15.101","v5.15.100","v5.15.99","v5.15.98","v5.15.97","v5.15.96","v5.15.95","v5.15.94","v5.15.93","v5.15.92","v5.15.91","v5.15.90","v5.15.89","v5.15.88","v5.15.87","v5.15.86","v5.15.85","v5.15.84","v5.15.83","v5.15.82","v5.15.81","v5.15.80","v5.15.79","v5.15.78","v6.0.7","v5.10.153","v6.0.6","v5.10.152","v5.10.151","v6.0.5","v5.10.150","v6.0-rc1","v5.10.149","v6.0.4","v6.0.3","v6.0.2","v5.10.148","v6.0","v6.0.1","v5.10.147","v6.0-rc7","v5.10.146","v6.0-rc3","v6.0-rc2","v5.10.145","v6.0-rc6","v6.0-rc4","v6.0-rc5","v5.10.144","v5.10.143","v5.10.142","v5.10.141","v5.10.140","v5.19","v5.10.139","v5.10.138","v5.10.137","v5.10.136","v5.19-rc1","v5.10.135","v5.10.134","v5.19-rc5","v5.19-rc8","v5.19-rc6","v5.18","v5.19-rc2","v5.19-rc7","v5.10.133","v5.19-rc3","v5.10.132","v5.10.131","v5.19-rc4","v5.10.130","v5.10.129","v5.10.128","v5.10.127","v5.18-rc1","v5.10.126","v5.10.125","v5.10.124","v5.10.123","v5.10.122","v5.10.121","v5.10.120","v5.10.119","v5.10.118","v5.18-rc7","v5.18-rc2","v5.10.117","v5.10.116","v5.18-rc5","v5.17","v5.18-rc4","v5.18-rc3","v5.18-rc6","v5.10.115","v5.10.114","v5.10.113","v5.10.112","v5.10.111","v5.10.110","v5.10.109","v5.17-rc6","v5.17-rc4","v5.10.108","v5.17-rc8","v5.17-rc7","v5.10.107","v5.17-rc1","v5.10.106","v5.17-rc3","v5.10.105","v5.17-rc2","v5.10.104","v5.10.103","v5.17-rc5","v5.16","v5.10.102","v5.10.101","v5.10.100","v5.10.99","v5.10.98","v5.10.97","v5.10.96","v5.10.95","v5.10.94","v5.10.93","v5.10.92","v5.16-rc1","v5.10.91","v5.16-rc8","v5.10.90","v5.16-rc5","v5.16-rc6","v5.10.89","v5.16-rc7","v5.10.88","v5.16-rc3","v5.16-rc2","v5.10.87","v5.10.86","v5.16-rc4","v5.10.85","v5.10.84","v5.15","v5.10.83","v5.10.82","v5.10.81","v5.10.80","v5.10.79","v5.10.78","v5.10.77","v5.15-rc2","v5.15-rc1","v5.15-rc4","v5.15-rc7","v5.10.76","v5.15-rc3","v5.15-rc5","v5.10.75","v5.15-rc6","v5.10.74","v5.14","v5.14-rc3","v5.10.73","v5.10.72","v5.10.71","v5.14-rc1","v5.10.70","v5.10.69","v5.10.68","v5.10.67","v5.10.66","v5.10.65","v5.10.64","v5.10.63","v5.10.62","v5.10.61","v5.14-rc2","v5.14-rc7","v5.14-rc6","v5.10.60","v5.13-rc1","v5.14-rc5","v5.14-rc4","v5.10.59","v5.10.58","v5.10.57","v5.10.56","v5.10.55","v5.13","v5.10.54","v5.10.53","v5.10.52","v5.10.51","v5.10.50","v5.10.49","v5.10.48","v5.13-rc6","v5.10.47","v5.13-rc7","v5.10.46","v5.13-rc3","v5.13-rc2","v5.13-rc4","v5.10.45","v5.10.44","v5.13-rc5","v5.10.43","v5.10.42","v5.10.41","v5.10.40","v5.10.39","v5.12","v5.10.38","v5.10.37","v5.10.36","v5.10.35","v5.10.34","v5.12-rc2","v5.12-rc1-dontuse","v5.12-rc1","v5.10.33","v5.10.32","v5.12-rc8","v5.12-rc3","v5.10.31","v5.12-rc7","v5.12-rc5","v5.10.30","v5.12-rc6","v5.10.29","v5.10.28","v5.10.27","v5.12-rc4","v5.10","v5.10.26","v5.10.25","v5.11","v5.10.24","v5.10.23","v5.10.22","v5.10.21","v5.10.20","v5.10.19","v5.10.18","v5.11-rc3","v5.10.17"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