CVE-2025-38648

MEDIUM EPSS 4.2%
Published Aug 22, 202510mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
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Published Aug 22, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: spi: stm32: Check for cfg availability in stm32_spi_probe The stm32_spi_probe function now includes a check to ensure that the pointer returned by of_device_get_match_data is not NULL before accessing its members. This resolves a warning where a potential NULL pointer dereference could occur when accessing cfg->has_device_mode. Before accessing the 'has_device_mode' member, we verify that 'cfg' is not NULL. If 'cfg' is NULL, an error message is logged. This change ensures that the driver does not attempt to access configuration data if it is not available, thus preventing a potential system crash due to a NULL pointer dereference.

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
4.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥6.6  –  <6.6.102
linuxlinux_kernel*≥6.7  –  <6.12.42
linuxlinux_kernel*≥6.13  –  <6.15.10
linuxlinux_kernel*≥6.16  –  <6.16.1

References 5

  • git.kernel.org https://git.kernel.org/stable/c/21f1c800f6620e43f31dfd76709dbac8ebaa5a16
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3a571a8d52272cc26858ab1bc83d0f66e5dee938
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6031a54f4eac921efe6122a561d44df89b37f2d4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a7645815edf4478f3258bb0db95a08986a77f5c0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cc063d23ad80ef7d201c41b2716b1bae7c662cf9
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/21f1c800f6620e43f31dfd76709dbac8ebaa5a16
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3a571a8d52272cc26858ab1bc83d0f66e5dee938
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6031a54f4eac921efe6122a561d44df89b37f2d4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a7645815edf4478f3258bb0db95a08986a77f5c0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cc063d23ad80ef7d201c41b2716b1bae7c662cf9
    Patch