CVE-2026-23193 - scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count()

CVE ID : CVE-2026-23193 Published : Feb. 14, 2026, 5:15 p.m. | 45 minutes ago Description : In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() In iscsit_dec_session_usage_count(), the function calls complete() while holding the sess->session_usage_lock. Similar to the connection usage count logic, the waiter signaled by complete() (e.g., in the session release path) may wake up and free the iscsit_session structure immediately. This creates a race condition where the current thread may attempt to execute spin_unlock_bh() on a session structure that has already been deallocated, resulting in a KASAN slab-use-after-free. To resolve this, release the session_usage_lock before calling complete() to ensure all dereferences of the sess pointer are finished before the waiter is allowed to proceed with deallocation. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...