CVE-2023-53140: scsi: core: Remove the /proc/scsi/${proc_name} directory earlier
Vulnerability summary
CVE-2023-53140 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.5% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 5Timeline
- 02-05-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: core: Remove the /proc/scsi/${proc_name} directory earlier Remove the /proc/scsi/${proc_name} directory earlier to fix a race condition between unloading and reloading kernel modules. This fixes a bug introduced in 2009 by commit 77c019768f06 ("[SCSI] fix /proc memory leak in the SCSI core"). Fix the following kernel warning: proc_dir_entry 'scsi/scsi_debug' already registered WARNING: CPU: 19 PID: 27986 at fs/proc/generic.c:376 proc_register+0x27d/0x2e0 Call Trace: proc_mkdir+0xb5/0xe0 scsi_proc_hostdir_add+0xb5/0x170 scsi_host_alloc+0x683/0x6c0 sdebug_driver_probe+0x6b/0x2d0 [scsi_debug] really_probe+0x159/0x540 __driver_probe_device+0xdc/0x230 driver_probe_device+0x4f/0x120 __device_attach_driver+0xef/0x180 bus_for_each_drv+0xe5/0x130 __device_attach+0x127/0x290 device_initial_probe+0x17/0x20 bus_probe_device+0x110/0x130 device_add+0x673/0xc80 device_register+0x1e/0x30 sdebug_add_host_helper+0x1a7/0x3b0 [scsi_debug] scsi_debug_init+0x64f/0x1000 [scsi_debug] do_one_initcall+0xd7/0x470 do_init_module+0xe7/0x330 load_module+0x122a/0x12c0 __do_sys_finit_module+0x124/0x1a0 __x64_sys_finit_module+0x46/0x50 do_syscall_64+0x38/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.19%
Chance of exploitation in the next 30 days
Percentile
9%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.19% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu116 products
- linuxAll versions (No fix recorded) | < 5.4.0-156.173 | < 5.15.0-79.86
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1107.115 | < 5.15.0-1042.47
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 77c019768f0607c36e25bec11ce3e1eabef09277, < 13daafe1e209b03e9bda16ff2bd2b2da145a139b | ≥ 77c019768f0607c36e25bec11ce3e1eabef09277, < 891a3cba425cf483d96facca55aebd6ff1da4338 | ≥ 77c019768f0607c36e25bec11ce3e1eabef09277, < 6b223e32d66ca9db1f252f433514783d8b22a8e1 | ≥ 77c019768f0607c36e25bec11ce3e1eabef09277, < e471e928de97b00f297ad1015cc14f9459765713 | ≥ 77c019768f0607c36e25bec11ce3e1eabef09277, < 17e98a5ede81b7696bec421f7afa2dfe467f5e6b | ≥ 77c019768f0607c36e25bec11ce3e1eabef09277, < 1ec363599f8346d5a8d08c71a0d9860d6c420ec0 | ≥ 77c019768f0607c36e25bec11ce3e1eabef09277, < fc663711b94468f4e1427ebe289c9f05669699c9 | 2.6.30
- linux_kernel≥ 2.6.30, < 4.19.278 | ≥ 4.20, < 5.4.237 | ≥ 5.5, < 5.10.175 | ≥ 5.11, < 5.15.103 | ≥ 5.16, < 6.1.20 | ≥ 6.2, < 6.2.7
Debian1 product
- linux< 6.1.20-1
3 vendors · 119 products
