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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-23193 Detail

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.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/11ebafffce31efc6abeb28c509017976fc49f1ca kernel.org Patch 
https://git.kernel.org/stable/c/2b64015550a13bcc72910be0565548d9a754d46d kernel.org Patch 
https://git.kernel.org/stable/c/41b86a9ec037bd3435d68dd3692f0891a207e7e7 kernel.org Patch 
https://git.kernel.org/stable/c/4530f4e4d0e6a207110b0ffed0c911bca43531a4 kernel.org Patch 
https://git.kernel.org/stable/c/84dc6037390b8607c5551047d3970336cb51ba9a kernel.org Patch 
https://git.kernel.org/stable/c/d8dbdc146e9e9a976931b78715be2e91299049f9 kernel.org Patch 
https://git.kernel.org/stable/c/fd8b0900173307039d3a84644c2fee041a7ed4fb kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-23193
NVD Published Date:
02/14/2026
NVD Last Modified:
04/03/2026
Source:
kernel.org