Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2026-23216

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
18/02/2026
Last modified:
18/03/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count()<br /> <br /> In iscsit_dec_conn_usage_count(), the function calls complete() while<br /> holding the conn-&gt;conn_usage_lock. As soon as complete() is invoked, the<br /> waiter (such as iscsit_close_connection()) may wake up and proceed to free<br /> the iscsit_conn structure.<br /> <br /> If the waiter frees the memory before the current thread reaches<br /> spin_unlock_bh(), it results in a KASAN slab-use-after-free as the function<br /> attempts to release a lock within the already-freed connection structure.<br /> <br /> Fix this by releasing the spinlock before calling complete().

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.1 (including) 5.10.250 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.200 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 6.1.163 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.124 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.12.70 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.13 (including) 6.18.10 (excluding)
cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools