CVE-2023-54154
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 versions
Linux kernel versions
6.1.28,
6.2.15,
6.3.2,
6.4
and later are affected. Fixed in
6.1.55,
6.5.5,
6.6
and their respective stable series.
References
The following references provide additional information about CVE-2023-54154 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/1cd41d1669bcbc5052afa897f85608a62ff3fb30
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PatchKernel patch commithttps://git.kernel.org/stable/c/d14e3e553e05cb763964c991fe6acb0a6a1c6f9c
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PatchKernel patch commithttps://git.kernel.org/stable/c/f84639c5ac5f4f95b3992da1af4ff382ebf2e819
Frequently asked questions
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What is CVE-2023-54154?
CVE-2023-54154 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.1.28 onward and has been patched in 6.1.55, 6.5.5 and 6.6. CVE-2023-54154 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2023-54154?
Yes — CVE-2023-54154 has been patched. Fixed versions include 6.1.55, 6.5.5 and 6.6. If you are running Linux kernel 6.1.28 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-54154 actively exploited?
No — CVE-2023-54154 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.