CVE-2026-23216

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().

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2026-02-18

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• linux:linux_kernel

References

• 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

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