scsi: core: Fix refcount leak for tagset_refcnt

Summary

CVECVE-2026-23296
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-25 11:16:24 UTC
Updated2026-04-18 09:16:17 UTC
DescriptionIn 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

Risk And Classification

EPSS: 0.000320000 probability, percentile 0.090980000 (date 2026-04-18)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f818708eeeae793e12dc39f8984ed7732048a7d9 0e274674714427dc578bb99db5b86e312d2b57f8 git Not specified
CNA Linux Linux affected 8fe4ce5836e932f5766317cb651c1ff2a4cd0506 9f5e4abed9248448aa1b45b12ab0bea4d329b56a git Not specified
CNA Linux Linux affected 8fe4ce5836e932f5766317cb651c1ff2a4cd0506 7c01b680beaf4d3143866b062b8e770e8b237fb8 git Not specified
CNA Linux Linux affected 8fe4ce5836e932f5766317cb651c1ff2a4cd0506 ec5c17c687b189dbc09dfdec11b669caa40bc395 git Not specified
CNA Linux Linux affected 8fe4ce5836e932f5766317cb651c1ff2a4cd0506 944a333c8e4d42256556c1d2ebb6d773a33e0dcd git Not specified
CNA Linux Linux affected 8fe4ce5836e932f5766317cb651c1ff2a4cd0506 a03d96598d39fdf605d90731db3ef3b13fb8bdc8 git Not specified
CNA Linux Linux affected 8fe4ce5836e932f5766317cb651c1ff2a4cd0506 1ac22c8eae81366101597d48360718dff9b9d980 git Not specified
CNA Linux Linux affected 5ce8fad941233e81f2afb5b52a3fcddd3ba8732f git Not specified
CNA Linux Linux affected 2e7eb4c1e8af8385de22775bd0be552f59b28c9a git Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 5.15.203 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.167 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.130 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.77 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.17 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.7 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/7c01b680beaf4d3143866b062b8e770e8b237fb8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0e274674714427dc578bb99db5b86e312d2b57f8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9f5e4abed9248448aa1b45b12ab0bea4d329b56a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1ac22c8eae81366101597d48360718dff9b9d980 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a03d96598d39fdf605d90731db3ef3b13fb8bdc8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ec5c17c687b189dbc09dfdec11b669caa40bc395 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/944a333c8e4d42256556c1d2ebb6d773a33e0dcd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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