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().
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().
Vendor
Product
CWE
Yayın Tarihi
2026-02-18 15:18:42
Güncelleme
2026-03-18 20:28:20
Source Identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
KEV Date Added
-
Kategoriler
Referanslar
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