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Back to active CVEs
Critical · CVSS 9.8CVE-2023-54184

scsi: target: iscsit: Free cmds before session freeCVE-2023-54184

Answer in brief

CVE-2023-54184 records a Critical severity (CVSS 9.8) vulnerability in scsi: target: iscsit: Free cmds before session free. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Dec 30, 2025Updated Aug 5, 2026Source checked Nov 4, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=988e3a85463d9b6dabc681df3f8f131b23c19953 <89f5055f9b0b57c7e7f02e32df95ef401f809b71 || >=988e3a85463d9b6dabc681df3f8f131b23c19953 <4621e24c9257c6379343bf0c11b473817cf7edcd || >=988e3a85463d9b6dabc681df3f8f131b23c19953 <1911cca5916b6e106de7afa3ec0a38447158216c || >=988e3a85463d9b6dabc681df3f8f131b23c19953 <a7a4def6c7046e090bb10c6d550fdeb487db98ba || >=988e3a85463d9b6dabc681df3f8f131b23c19953 <4ce221d295f53e6c6b835ab33181e735482c9aac || >=988e3a85463d9b6dabc681df3f8f131b23c19953 <d8990b5a4d065f38f35d69bcd627ec5a7f8330ca89f5055f9b0b57c7e7f02e32df95ef401f809b71, 4621e24c9257c6379343bf0c11b473817cf7edcd, 1911cca5916b6e106de7afa3ec0a38447158216c, a7a4def6c7046e090bb10c6d550fdeb487db98ba, 4ce221d295f53e6c6b835ab33181e735482c9aac, d8990b5a4d065f38f35d69bcd627ec5a7f8330ca
Linux/Linuxgeneric3.12Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 89f5055f9b0b57c7e7f02e32df95ef401f809b71 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Dec 30, 2025

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 5, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 4, 2026
References
6 linked sources
Open source record