CVE-2024-50153

MEDIUM EPSS 17.0%
Published Nov 7, 20241y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Nov 7, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

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().

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
17.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥5.11  –  <5.15.170
linuxlinux_kernel*≥5.16  –  <6.1.115
linuxlinux_kernel*≥6.2  –  <6.6.59
linuxlinux_kernel*≥6.7  –  <6.11.6
linuxlinux_kernel5.10.180any
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any

References 9

  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-265688.html
  • git.kernel.org https://git.kernel.org/stable/c/14a6a2adb440e4ae97bee73b2360946bd033dadd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/39e02fa90323243187c91bb3e8f2f5f6a9aacfc7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/895ab729425ef9bf3b6d2f8d0853abe64896f314
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c1e6717f60d31f8af3937c23c4f1498529584e1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b80e9bc85bd9af378e7eac83e15dd129557bbdb6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fca6caeb4a61d240f031914413fcc69534f6dc03
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/14a6a2adb440e4ae97bee73b2360946bd033dadd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/39e02fa90323243187c91bb3e8f2f5f6a9aacfc7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/895ab729425ef9bf3b6d2f8d0853abe64896f314
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c1e6717f60d31f8af3937c23c4f1498529584e1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b80e9bc85bd9af378e7eac83e15dd129557bbdb6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fca6caeb4a61d240f031914413fcc69534f6dc03
    Patch