{"id":"DEBIAN-CVE-2023-53848","details":"In the Linux kernel, the following vulnerability has been resolved:  md/raid5-cache: fix a deadlock in r5l_exit_log()  Commit b13015af94cf (\"md/raid5-cache: Clear conf-\u003elog after finishing work\") introduce a new problem:  // caller hold reconfig_mutex r5l_exit_log  flush_work(&log-\u003edisable_writeback_work) \t\t\tr5c_disable_writeback_async \t\t\t wait_event \t\t\t  /* \t\t\t   * conf-\u003elog is not NULL, and mddev_trylock() \t\t\t   * will fail, wait_event() can never pass. \t\t\t   */  conf-\u003elog = NULL  Fix this problem by setting 'config-\u003elog' to NULL before wake_up() as it used to be, so that wait_event() from r5c_disable_writeback_async() can exist. In the meantime, move forward md_unregister_thread() so that null-ptr-deref this commit fixed can still be fixed.","modified":"2026-09-15T08:47:26.779760445Z","published":"2025-12-09T16:17:25.290Z","upstream":["CVE-2023-53848"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-53848"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.55-1"}]}],"versions":["6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1~bpo11+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53848.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53848.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53848.json"}}],"schema_version":"1.9.0"}