CVE-2026-23216
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
18/02/2026
Last modified:
18/02/2026
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->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
References to Advisories, Solutions, and Tools
- https://git.kernel.org/stable/c/275016a551ba1a068a3bd6171b18611726b67110
- https://git.kernel.org/stable/c/3835e49e146a4e6e7787b29465f1a23379b6ec44
- https://git.kernel.org/stable/c/48fe983e92de2c59d143fe38362ad17ba23ec7f3
- https://git.kernel.org/stable/c/73b487d44bf4f92942629d578381f89c326ff77f
- https://git.kernel.org/stable/c/8518f072fc92921418cd9ed4268dd4f3e9a8fd75
- https://git.kernel.org/stable/c/9411a89e9e7135cc459178fa77a3f1d6191ae903
- https://git.kernel.org/stable/c/ba684191437380a07b27666eb4e72748be1ea201



