Read the docs
TI-2026-18733 Aliases CVE-2026-23296GHSA-xvv5-hhxw-j52w

scsi: core: Fix refcount leak for tagset_refcnt

Priority LOW 24Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 4 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00127 2nd percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.15.203, 5.11, 5.20 +6Red Hat: 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux5.15.164 to before 5.15.203; 5.10.223 to before 5.11; 5.19.12 to before 5.205.15.203, 5.11, 5.20Patch availableCNA
LinuxLinux6.0 and later5.15.203, 6.1.167, 6.6.130, 6.12.77, 6.18.17, 6.19.7, 7.0Patch availableCNA
  • Linux VendorLinux Affected 5.15.164 to before 5.15.203; 5.10.223 to before 5.11; 5.19.12 to before 5.20 Fixed in 5.15.203, 5.11, 5.20 Patch available CNA
  • Linux VendorLinux Affected 6.0 and later Fixed in 5.15.203, 6.1.167, 6.6.130, 6.12.77, 6.18.17, 6.19.7, 7.0 Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*5.10.223 to before 5.11; 5.15.164 to before 5.15.203; 5.19.12 to before 6.0; 6.0.1 to before 6.1.167; 6.2 to before 6.6.130; 6.7 to before 6.12.77; 6.13 to before 6.18.17; 6.19 to before 6.19.7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.0:-:*:*:*:*:*:*6.0VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:*6.0 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:*6.0 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.0:rc7:*:*:*:*:*:*6.0 rc7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*7.0 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*7.0 rc2VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.10.223 to before 5.11; 5.15.164 to before 5.15.203; 5.19.12 to before 6.0; 6.0.1 to before 6.1.167; 6.2 to before 6.6.130; 6.7 to before 6.12.77; 6.13 to before 6.18.17; 6.19 to before 6.19.7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.0:-:*:*:*:*:*:* Versions 6.0 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:* Versions 6.0 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:* Versions 6.0 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.0:rc7:*:*:*:*:*:* Versions 6.0 rc7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* Versions 7.0 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* Versions 7.0 rc2 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.15.203, 5.11, 5.20
  • Fix · CNA Linux (Linux) Fixed in 5.15.203, 6.1.167, 6.6.130, 6.12.77, 6.18.17, 6.19.7, 7.0

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Not affected: 1 product
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-23296
  2. 2026-10-03 Alias added: GHSA-xvv5-hhxw-j52w
  3. 2026-11-05 CISA SSVC decision points changed

References

Patch 7

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences