CVE-2025-38648

spi: stm32: Check for cfg availability in stm32_spi_probe

State: Published
Severity: Not scored
Published: Aug 22, 2025
Updated: May 11, 2026
Reserved: Apr 16, 2025

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	fee681646fc831b154619ac0261afedcc7e671e7 to before 6031a54f4eac921efe6122a561d44df89b37f2d4Affected fee681646fc831b154619ac0261afedcc7e671e7 to before a7645815edf4478f3258bb0db95a08986a77f5c0Affected fee681646fc831b154619ac0261afedcc7e671e7 to before 3a571a8d52272cc26858ab1bc83d0f66e5dee938Affected fee681646fc831b154619ac0261afedcc7e671e7 to before cc063d23ad80ef7d201c41b2716b1bae7c662cf9Affected fee681646fc831b154619ac0261afedcc7e671e7 to before 21f1c800f6620e43f31dfd76709dbac8ebaa5a16Affected
LinuxLinux	6.6Affected before 6.6Not affected 6.6.102 through 6.6.Not affected 6.12.42 through 6.12.Not affected 6.15.10 through 6.15.Not affected 6.16.1 through 6.16.Not affected 6.17 and laterNot affected

Product

Versions

LinuxLinux

fee681646fc831b154619ac0261afedcc7e671e7 to before 6031a54f4eac921efe6122a561d44df89b37f2d4Affected
fee681646fc831b154619ac0261afedcc7e671e7 to before a7645815edf4478f3258bb0db95a08986a77f5c0Affected
fee681646fc831b154619ac0261afedcc7e671e7 to before 3a571a8d52272cc26858ab1bc83d0f66e5dee938Affected
fee681646fc831b154619ac0261afedcc7e671e7 to before cc063d23ad80ef7d201c41b2716b1bae7c662cf9Affected
fee681646fc831b154619ac0261afedcc7e671e7 to before 21f1c800f6620e43f31dfd76709dbac8ebaa5a16Affected

LinuxLinux

6.6Affected
before 6.6Not affected
6.6.102 through 6.6.*Not affected
6.12.42 through 6.12.*Not affected
6.15.10 through 6.15.*Not affected
6.16.1 through 6.16.*Not affected
6.17 and laterNot affected

References

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