CVE-2023-54154

scsi: target: core: Fix target_cmd_counter leak

N/A
Published: December 24, 2025 at 01:07 PM UTC
Updated: June 17, 2026 at 06:46 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≥ 6.2.15v ≥ 6.3.26.1.28 ≤ v < 6.1.556.2.15 ≤ v < 6.36.3.2 ≤ v < 6.46.4 ≤ v < 6.5.56.4 ≤ v < 6.61eaaf1b828cdaa58abccc68962d24005fd5e88526.1.286.2.156.3.26.476b77646f17118f5babe93c032e6b7a53bbde3b9bc5ebf93ae23a928303b3643c6f4c4da2f769e7cbecd9be6069e7b183c084f460f0eb363e43cc487
Vendor states this is fixed in 1cd41d1669bcbc5052afa897f85608a62ff3fb30 (fixed)
Vendor states this is fixed in d14e3e553e05cb763964c991fe6acb0a6a1c6f9c (fixed)
Vendor states this is fixed in f84639c5ac5f4f95b3992da1af4ff382ebf2e819 (fixed)
Vendor states this is fixed in 6.1.55 (unaffected)
Affected range stops below 6.3, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 6.4 (unaffected)
Vendor states this is fixed in 6.5.5 (unaffected)
Vendor states this is fixed in 6.6 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Quick Info

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