https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-29T05:43:57.299475+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2023-54184 CVE-2023-54184 — scsi: target: iscsit: Free cmds before session free 2026-09-29T05:43:57.322523+00:00

Affected: Linux

In the Linux kernel, the following vulnerability has been resolved:

scsi: target: iscsit: Free cmds before session free

Commands from recovery entries are freed after session has been closed. That leads to use-after-free at command free or NPE with such call trace:

Time2Retain timer expired for SID: 1, cleaning up iSCSI session. BUG: kernel NULL pointer dereference, address: 0000000000000140 RIP: 0010:sbitmap_queue_clear+0x3a/0xa0 Call Trace: target_release_cmd_kref+0xd1/0x1f0 [target_core_mod] transport_generic_free_cmd+0xd1/0x180 [target_core_mod] iscsit_free_cmd+0x53/0xd0 [iscsi_target_mod] iscsit_free_connection_recovery_entries+0x29d/0x320 [iscsi_target_mod] iscsit_close_session+0x13a/0x140 [iscsi_target_mod] iscsit_check_post_dataout+0x440/0x440 [iscsi_target_mod] call_timer_fn+0x24/0x140

Move cleanup of recovery enrties to before session freeing.