{"id":"CVE-2023-54209","summary":"block: fix blktrace debugfs entries leakage","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nblock: fix blktrace debugfs entries leakage\n\nCommit 99d055b4fd4b (\"block: remove per-disk debugfs files in\nblk_unregister_queue\") moves blk_trace_shutdown() from\nblk_release_queue() to blk_unregister_queue(), this is safe if blktrace\nis created through sysfs, however, there is a regression in corner\ncase.\n\nblktrace can still be enabled after del_gendisk() through ioctl if\nthe disk is opened before del_gendisk(), and if blktrace is not shutdown\nthrough ioctl before closing the disk, debugfs entries will be leaked.\n\nFix this problem by shutdown blktrace in disk_release(), this is safe\nbecause blk_trace_remove() is reentrant.","modified":"2026-03-31T17:29:53.044355494Z","published":"2025-12-30T12:11:08.027Z","related":["SUSE-SU-2026:0278-1","SUSE-SU-2026:0281-1","SUSE-SU-2026:0293-1","SUSE-SU-2026:0315-1","SUSE-SU-2026:20477-1","SUSE-SU-2026:20498-1","SUSE-SU-2026:20845-1","SUSE-SU-2026:20876-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54209.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/7149e57cf01184fba175589f8fbe9fbf33be02e1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/942e81650b81b4ca62f1d8c61de455c9e7c7e6ca"},{"type":"WEB","url":"https://git.kernel.org/stable/c/aa07e56c6a9c7558165690d14eed4fe8babf34fb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dd7de3704af9989b780693d51eaea49a665bd9c2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54209.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-54209"},{"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":"99d055b4fd4bbb309c6cdb51a0d420669f777944"},{"fixed":"aa07e56c6a9c7558165690d14eed4fe8babf34fb"},{"fixed":"7149e57cf01184fba175589f8fbe9fbf33be02e1"},{"fixed":"942e81650b81b4ca62f1d8c61de455c9e7c7e6ca"},{"fixed":"dd7de3704af9989b780693d51eaea49a665bd9c2"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54209.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.19.0"},{"fixed":"6.1.39"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.3.13"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.4.0"},{"fixed":"6.4.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54209.json"}}],"schema_version":"1.7.5"}