In the Linux kernel, the following vulnerability has been resolved:

scsi: target: iscsit: Free cmds before session free

Commands from recovery entries are freed after session has been closed.
That leads to use-after-free at command free or NPE with such call trace:

Time2Retain timer expired for SID: 1, cleaning up iSCSI session.
BUG: kernel NULL pointer dereference, address: 0000000000000140
RIP: 0010:sbitmap_queue_clear+0x3a/0xa0
Call Trace:
target_release_cmd_kref+0xd1/0x1f0 [target_core_mod]
transport_generic_free_cmd+0xd1/0x180 [target_core_mod]
iscsit_free_cmd+0x53/0xd0 [iscsi_target_mod]
iscsit_free_connection_recovery_entries+0x29d/0x320 [iscsi_target_mod]
iscsit_close_session+0x13a/0x140 [iscsi_target_mod]
iscsit_check_post_dataout+0x440/0x440 [iscsi_target_mod]
call_timer_fn+0x24/0x140

Move cleanup of recovery enrties to before session freeing.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00035.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
988e3a85463d9b6dabc681df3f8f131b23c19953 affected < 89f5055f9b0b57c7e7f02e32df95ef401f809b71
988e3a85463d9b6dabc681df3f8f131b23c19953 affected < 4621e24c9257c6379343bf0c11b473817cf7edcd
988e3a85463d9b6dabc681df3f8f131b23c19953 affected < 1911cca5916b6e106de7afa3ec0a38447158216c
988e3a85463d9b6dabc681df3f8f131b23c19953 affected < a7a4def6c7046e090bb10c6d550fdeb487db98ba
988e3a85463d9b6dabc681df3f8f131b23c19953 affected < 4ce221d295f53e6c6b835ab33181e735482c9aac
988e3a85463d9b6dabc681df3f8f131b23c19953 affected < d8990b5a4d065f38f35d69bcd627ec5a7f8330ca
Linux Linux affected
Version Status Constraints
3.12 affected —
0 unaffected < 3.12
5.4.244 unaffected ≤ 5.4.*
5.10.181 unaffected ≤ 5.10.*
5.15.113 unaffected ≤ 5.15.*
6.1.30 unaffected ≤ 6.1.*
6.3.4 unaffected ≤ 6.3.*
6.4 unaffected ≤ *

No data.

No data.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/1911cca5916b6e106de7afa3ec0a38447158216c cve-icon cve-icon
https://git.kernel.org/stable/c/4621e24c9257c6379343bf0c11b473817cf7edcd cve-icon cve-icon
https://git.kernel.org/stable/c/4ce221d295f53e6c6b835ab33181e735482c9aac cve-icon cve-icon
https://git.kernel.org/stable/c/89f5055f9b0b57c7e7f02e32df95ef401f809b71 cve-icon cve-icon
https://git.kernel.org/stable/c/a7a4def6c7046e090bb10c6d550fdeb487db98ba cve-icon cve-icon
https://git.kernel.org/stable/c/d8990b5a4d065f38f35d69bcd627ec5a7f8330ca cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025123025-CVE-2023-54184-e958@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-54184 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-54184 cve-icon
History

Wed, 31 Dec 2025 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Tue, 30 Dec 2025 12:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsit: Free cmds before session free Commands from recovery entries are freed after session has been closed. That leads to use-after-free at command free or NPE with such call trace: Time2Retain timer expired for SID: 1, cleaning up iSCSI session. BUG: kernel NULL pointer dereference, address: 0000000000000140 RIP: 0010:sbitmap_queue_clear+0x3a/0xa0 Call Trace: target_release_cmd_kref+0xd1/0x1f0 [target_core_mod] transport_generic_free_cmd+0xd1/0x180 [target_core_mod] iscsit_free_cmd+0x53/0xd0 [iscsi_target_mod] iscsit_free_connection_recovery_entries+0x29d/0x320 [iscsi_target_mod] iscsit_close_session+0x13a/0x140 [iscsi_target_mod] iscsit_check_post_dataout+0x440/0x440 [iscsi_target_mod] call_timer_fn+0x24/0x140 Move cleanup of recovery enrties to before session freeing.
Title scsi: target: iscsit: Free cmds before session free
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-01-05T10:51:20.870Z

Reserved: 2025-12-30T12:06:44.497Z

Link: CVE-2023-54184

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-30T13:16:06.357

Modified: 2025-12-31T20:43:05.160

Link: CVE-2023-54184

cve-icon Redhat

Severity : Low

Publid Date: 2025-12-30T00:00:00Z

Links: CVE-2023-54184 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.