{"id":"CVE-2023-53613","summary":"dax: Fix dax_mapping_release() use after free","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndax: Fix dax_mapping_release() use after free\n\nA CONFIG_DEBUG_KOBJECT_RELEASE test of removing a device-dax region\nprovider (like modprobe -r dax_hmem) yields:\n\n kobject: 'mapping0' (ffff93eb460e8800): kobject_release, parent 0000000000000000 (delayed 2000)\n [..]\n DEBUG_LOCKS_WARN_ON(1)\n WARNING: CPU: 23 PID: 282 at kernel/locking/lockdep.c:232 __lock_acquire+0x9fc/0x2260\n [..]\n RIP: 0010:__lock_acquire+0x9fc/0x2260\n [..]\n Call Trace:\n  \u003cTASK\u003e\n [..]\n  lock_acquire+0xd4/0x2c0\n  ? ida_free+0x62/0x130\n  _raw_spin_lock_irqsave+0x47/0x70\n  ? ida_free+0x62/0x130\n  ida_free+0x62/0x130\n  dax_mapping_release+0x1f/0x30\n  device_release+0x36/0x90\n  kobject_delayed_cleanup+0x46/0x150\n\nDue to attempting ida_free() on an ida object that has already been\nfreed. Devices typically only hold a reference on their parent while\nregistered. If a child needs a parent object to complete its release it\nneeds to hold a reference that it drops from its release callback.\nArrange for a dax_mapping to pin its parent dev_dax instance until\ndax_mapping_release().","modified":"2026-03-20T12:33:15.487203Z","published":"2025-10-04T15:44:20.998Z","related":["SUSE-SU-2025:21040-1","SUSE-SU-2025:21052-1","SUSE-SU-2025:21056-1","SUSE-SU-2025:21064-1","SUSE-SU-2025:4057-1","SUSE-SU-2025:4128-1","SUSE-SU-2025:4132-1","SUSE-SU-2025:4140-1","SUSE-SU-2025:4141-1","SUSE-SU-2025:4301-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53613.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/03859868ab82d57bfdd0cea1bf31f9319a5dded0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6d24b170a9db0456f577b1ab01226a2254c016a8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7310b84821f043dcf77d5e6aa0ad55dc1e10a11d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/94a85474f5e3e518bdbf8c9f51cb343d734a04f7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9c2f993b6ca903c030d58451b5bf9ea27d0d17fa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f76db6781d76d8464ec2faa9752cc3fb2e4f6923"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53613.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53613"},{"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":"0b07ce872a9eca1ff88c0eb7f6e92dde127d21ca"},{"fixed":"94a85474f5e3e518bdbf8c9f51cb343d734a04f7"},{"fixed":"9c2f993b6ca903c030d58451b5bf9ea27d0d17fa"},{"fixed":"03859868ab82d57bfdd0cea1bf31f9319a5dded0"},{"fixed":"f76db6781d76d8464ec2faa9752cc3fb2e4f6923"},{"fixed":"7310b84821f043dcf77d5e6aa0ad55dc1e10a11d"},{"fixed":"6d24b170a9db0456f577b1ab01226a2254c016a8"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53613.json"}}],"schema_version":"1.7.5"}