CVE-2023-54154
Unknown Unknown - Not Provided

Memory Leak in Linux Kernel SCSI Target Core Component

Publication date: 2025-12-24

Last updated on: 2025-12-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Fix target_cmd_counter leak The target_cmd_counter struct allocated via target_alloc_cmd_counter() is never freed, resulting in leaks across various transport types, e.g.: unreferenced object 0xffff88801f920120 (size 96): comm "sh", pid 102, jiffies 4294892535 (age 713.412s) hex dump (first 32 bytes): 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 38 01 92 1f 80 88 ff ff ........8....... backtrace: [<00000000e58a6252>] kmalloc_trace+0x11/0x20 [<0000000043af4b2f>] target_alloc_cmd_counter+0x17/0x90 [target_core_mod] [<000000007da2dfa7>] target_setup_session+0x2d/0x140 [target_core_mod] [<0000000068feef86>] tcm_loop_tpg_nexus_store+0x19b/0x350 [tcm_loop] [<000000006a80e021>] configfs_write_iter+0xb1/0x120 [<00000000e9f4d860>] vfs_write+0x2e4/0x3c0 [<000000008143433b>] ksys_write+0x80/0xb0 [<00000000a7df29b2>] do_syscall_64+0x42/0x90 [<0000000053f45fb8>] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Free the structure alongside the corresponding iscsit_conn / se_sess parent.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2025-12-24
Last Modified
2025-12-24
Generated
2026-07-06
AI Q&A
2025-12-24
EPSS Evaluated
2026-07-05
NVD
CVE-2023-54154
EUVD
EUVD-2023-60291

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
linux linux_kernel *
linux kernel *

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is a memory leak in the Linux kernel's SCSI target core. Specifically, the target_cmd_counter structure allocated by target_alloc_cmd_counter() is never freed, causing memory to be leaked across various transport types. This means that allocated memory is not properly released, which can lead to resource exhaustion over time.

Impact Analysis

The impact of this vulnerability is that it can cause memory leaks in the Linux kernel, potentially leading to increased memory usage and resource exhaustion. Over time, this could degrade system performance or cause instability due to the accumulation of unreleased memory.

Mitigation Strategies

The vulnerability is caused by a memory leak in the Linux kernel's target_cmd_counter struct. To mitigate this vulnerability, you should update your Linux kernel to a version where this issue is fixed, as the fix involves freeing the target_cmd_counter structure alongside the corresponding iscsit_conn / se_sess parent. No other immediate mitigation steps are provided.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2023-54154. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart