CVE-2026-23216
scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count()
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() In iscsit_dec_conn_usage_count(), the function calls complete() while holding the conn->conn_usage_lock. As soon as complete() is invoked, the waiter (such as iscsit_close_connection()) may wake up and proceed to free the iscsit_conn structure. If the waiter frees the memory before the current thread reaches spin_unlock_bh(), it results in a KASAN slab-use-after-free as the function attempts to release a lock within the already-freed connection structure. Fix this by releasing the spinlock before calling complete().
INFO
Published Date :
Feb. 18, 2026, 3:18 p.m.
Last Modified :
Feb. 18, 2026, 5:51 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-23216
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Release the spinlock before calling complete().
- Ensure conn->conn_usage_lock is unlocked.
- Avoid freeing memory while holding a lock.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-23216.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-23216 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-23216
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2026-23216 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-23216 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 18, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() In iscsit_dec_conn_usage_count(), the function calls complete() while holding the conn->conn_usage_lock. As soon as complete() is invoked, the waiter (such as iscsit_close_connection()) may wake up and proceed to free the iscsit_conn structure. If the waiter frees the memory before the current thread reaches spin_unlock_bh(), it results in a KASAN slab-use-after-free as the function attempts to release a lock within the already-freed connection structure. Fix this by releasing the spinlock before calling complete(). Added Reference https://git.kernel.org/stable/c/275016a551ba1a068a3bd6171b18611726b67110 Added Reference https://git.kernel.org/stable/c/3835e49e146a4e6e7787b29465f1a23379b6ec44 Added Reference https://git.kernel.org/stable/c/48fe983e92de2c59d143fe38362ad17ba23ec7f3 Added Reference https://git.kernel.org/stable/c/73b487d44bf4f92942629d578381f89c326ff77f Added Reference https://git.kernel.org/stable/c/8518f072fc92921418cd9ed4268dd4f3e9a8fd75 Added Reference https://git.kernel.org/stable/c/9411a89e9e7135cc459178fa77a3f1d6191ae903 Added Reference https://git.kernel.org/stable/c/ba684191437380a07b27666eb4e72748be1ea201