What’s Vulnerable › Vulnerabilities

CVE-2023-52467: mfd: syscon: Fix null pointer dereference in of_syscon_register()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-02-26 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: mfd: syscon: Fix null pointer dereference in of_syscon_register() kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.

Affected products

• Linux kernel: from 5.9.0 before 5.10.209; from 5.11.0 before 5.15.148; from 5.16.0 before 6.1.75; from 6.2.0 before 6.6.14; from 6.7.0 before 6.7.2 — fixed in 5.10.209, 5.15.148, 6.1.75, 6.6.14, 6.7.2

How to fix

Upgrade to a fixed version: Linux kernel 5.10.209, 5.15.148, 6.1.75, 6.6.14. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3ef1130deee98997275904d9bfc37af75e1e906c
• https://git.kernel.org/stable/c/41673c66b3d0c09915698fec5c13b24336f18dd1
• https://git.kernel.org/stable/c/527e8c5f3d00299822612c495d5adf1f8f43c001
• https://git.kernel.org/stable/c/7f2c410ac470959b88e03dadd94b7a0b71df7973
• https://git.kernel.org/stable/c/927626a2073887ee30ba00633260d4d203f8e875
• https://git.kernel.org/stable/c/c3e3a2144bf50877551138ffce9f7aa6ddfe385b
• https://git.kernel.org/stable/c/3ef1130deee98997275904d9bfc37af75e1e906c
• https://git.kernel.org/stable/c/41673c66b3d0c09915698fec5c13b24336f18dd1
• https://git.kernel.org/stable/c/527e8c5f3d00299822612c495d5adf1f8f43c001
• https://git.kernel.org/stable/c/7f2c410ac470959b88e03dadd94b7a0b71df7973
• https://git.kernel.org/stable/c/927626a2073887ee30ba00633260d4d203f8e875
• https://git.kernel.org/stable/c/c3e3a2144bf50877551138ffce9f7aa6ddfe385b

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