{"id":"DEBIAN-CVE-2023-52757","details":"In the Linux kernel, the following vulnerability has been resolved:  smb: client: fix potential deadlock when releasing mids  All release_mid() callers seem to hold a reference of @mid so there is no need to call kref_put(&mid-\u003erefcount, __release_mid) under @server-\u003emid_lock spinlock.  If they don't, then an use-after-free bug would have occurred anyways.  By getting rid of such spinlock also fixes a potential deadlock as shown below  CPU 0                                CPU 1 ------------------------------------------------------------------ cifs_demultiplex_thread()            cifs_debug_data_proc_show()  release_mid()   spin_lock(&server-\u003emid_lock);                                      spin_lock(&cifs_tcp_ses_lock) \t\t\t\t      spin_lock(&server-\u003emid_lock)   __release_mid()    smb2_find_smb_tcon()     spin_lock(&cifs_tcp_ses_lock) *deadlock*","modified":"2026-09-15T09:02:48.848281170Z","published":"2024-05-21T16:15:15.187Z","upstream":["CVE-2023-52757"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-52757"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.64-1"}]}],"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","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-2023-52757.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52757.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52757.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}