CVE-2024-50153

MediumCVSS 5.5/10Last modified Oct 15, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

scsi: target: core: Fix null-ptr-deref in target_alloc_device()

There is a null-ptr-deref issue reported by KASAN:

BUG: KASAN: null-ptr-deref in target_alloc_device+0xbc4/0xbe0 [target_core_mod] ... kasan_report+0xb9/0xf0 target_alloc_device+0xbc4/0xbe0 [target_core_mod] core_dev_setup_virtual_lun0+0xef/0x1f0 [target_core_mod] target_core_init_configfs+0x205/0x420 [target_core_mod] do_one_initcall+0xdd/0x4e0 ... entry_SYSCALL_64_after_hwframe+0x76/0x7e

In target_alloc_device(), if allocing memory for dev queues fails, then dev will be freed by dev->transport->free_device(), but dev->transport is not initialized at that time, which will lead to a null pointer reference problem.

Fixing this bug by freeing dev with hba->backend->ops->free_device().

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

VendorProductVersions
LinuxLinux>= 008b936bbde3e87a611b3828a0d5d2a4f99026a0, < 8c1e6717f60d31f8af3937c23c4f1498529584e1; >= 1526d9f10c6184031e42afad0adbdde1213e8ad1, < 39e02fa90323243187c91bb3e8f2f5f6a9aacfc7; >= 1526d9f10c6184031e42afad0adbdde1213e8ad1, < 895ab729425ef9bf3b6d2f8d0853abe64896f314; >= 1526d9f10c6184031e42afad0adbdde1213e8ad1, < b80e9bc85bd9af378e7eac83e15dd129557bbdb6; >= 1526d9f10c6184031e42afad0adbdde1213e8ad1, < 14a6a2adb440e4ae97bee73b2360946bd033dadd; >= 1526d9f10c6184031e42afad0adbdde1213e8ad1, < fca6caeb4a61d240f031914413fcc69534f6dc03; >= 5.10.180, < 5.10.229
LinuxLinux5.11
SiemensSIMATIC S7-1500 TM MFP - GNU/Linux subsystem< V1.1.1

References

Timeline

Published
Nov 7, 2024
Last modified
Oct 15, 2026
NVD status
Modified

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CVE-2024-50153: Medium severity, CVSS 5.5 | Vulnix