CVE-2023-53140

MEDIUM

Linux Kernel 2.6.30-4.19.278 - Use-After-Free in SCSI Core Proc Directory Handling

Title source: llm
STIX 2.1

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

Scores

CVSS v3 5.5
EPSS 0.0015
EPSS Percentile 4.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-401
Status published
Products (17)
Linux/Linux < 2.6.30
Linux/Linux 2.6.30
Linux/Linux 4.19.278 - 4.19.*
Linux/Linux 5.10.175 - 5.10.*
Linux/Linux 5.15.103 - 5.15.*
Linux/Linux 5.4.237 - 5.4.*
Linux/Linux 6.1.20 - 6.1.*
Linux/Linux 6.2.7 - 6.2.*
Linux/Linux 6.3
Linux/Linux 77c019768f0607c36e25bec11ce3e1eabef09277 - 13daafe1e209b03e9bda16ff2bd2b2da145a139b
... and 7 more
Published May 02, 2025
Tracked Since Feb 18, 2026