Vulnerability Database

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Total vulnerabilities in the database

CVE-2023-53320 — linux / linux_kernel

Out-of-bounds Write

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

scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info()

The function mpi3mr_get_all_tgt_info() has four issues:

  1. It calculates valid entry length in alltgt_info assuming the header part of the struct mpi3mr_device_map_info would equal to sizeof(u32). The correct size is sizeof(u64).

  2. When it calculates the valid entry length kern_entrylen, it excludes one entry by subtracting 1 from num_devices.

  3. It copies num_device by calling memcpy(). Substitution is enough.

  4. It does not specify the calculated length to sg_copy_from_buffer(). Instead, it specifies the payload length which is larger than the alltgt_info size. It causes "BUG: KASAN: slab-out-of-bounds".

Fix the issues by using the correct header size, removing the subtraction from num_devices, replacing the memcpy() with substitution and specifying the correct length to sg_copy_from_buffer().

  • Published: Sep 16, 2025
  • Updated: Dec 2, 2025
  • CVE: CVE-2023-53320
  • Severity: High
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: High
  • Score: 7.8
  • AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWEs:

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