Use-After-Free Vulnerability in Linux Kernel SCSI Target.
CVE-2026-23216

Currently unrated

Key Information:

Vendor: Linux
Status: Linux
Vendor: CVE Published:; 18 February 2026

What is CVE-2026-23216?

A use-after-free vulnerability has been found in the Linux kernel's SCSI target implementation. Specifically, during the operation of ‘iscsit_dec_conn_usage_count()’, a critical flaw arises when the function calls 'complete()' while still holding the connection usage lock. If the execution flow permits the waiter, such as 'iscsit_close_connection()', to free the associated iscsit_conn structure too early, it can lead to a KASAN slab-use-after-free scenario. The proper resolution involves releasing the spinlock before invoking the complete function, ensuring the integrity of the connection structure and preventing unauthorized memory access. It is crucial for operators and system administrators to stay updated and apply the necessary patches to mitigate this vulnerability.

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