CVE-2026-23296

MEDIUM

scsi: core: Fix refcount leak for tagset_refcnt

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix refcount leak for tagset_refcnt This leak will cause a hang when tearing down the SCSI host. For example, iscsid hangs with the following call trace: [130120.652718] scsi_alloc_sdev: Allocation failure during SCSI scanning, some SCSI devices might not be configured PID: 2528 TASK: ffff9d0408974e00 CPU: 3 COMMAND: "iscsid" #0 [ffffb5b9c134b9e0] __schedule at ffffffff860657d4 #1 [ffffb5b9c134ba28] schedule at ffffffff86065c6f #2 [ffffb5b9c134ba40] schedule_timeout at ffffffff86069fb0 #3 [ffffb5b9c134bab0] __wait_for_common at ffffffff8606674f #4 [ffffb5b9c134bb10] scsi_remove_host at ffffffff85bfe84b #5 [ffffb5b9c134bb30] iscsi_sw_tcp_session_destroy at ffffffffc03031c4 [iscsi_tcp] #6 [ffffb5b9c134bb48] iscsi_if_recv_msg at ffffffffc0292692 [scsi_transport_iscsi] #7 [ffffb5b9c134bb98] iscsi_if_rx at ffffffffc02929c2 [scsi_transport_iscsi] #8 [ffffb5b9c134bbf0] netlink_unicast at ffffffff85e551d6 #9 [ffffb5b9c134bc38] netlink_sendmsg at ffffffff85e554ef

Scores

CVSS v3 5.5
EPSS 0.0003
EPSS Percentile 10.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (31)
linux/Kernel 6.0.0 - 6.1.167linux
linux/Kernel 6.13.0 - 6.18.17linux
linux/Kernel 6.19.0 - 6.19.7linux
linux/Kernel 6.2.0 - 6.6.130linux
linux/Kernel 6.7.0 - 6.12.77linux
Linux/Linux < 6.0
Linux/Linux 2e7eb4c1e8af8385de22775bd0be552f59b28c9a
Linux/Linux 5.10.223 - 5.11
Linux/Linux 5.15.164 - 5.15.203
Linux/Linux 5.15.203 - 5.15.*
... and 21 more
Published Mar 25, 2026
Tracked Since Mar 25, 2026