CVE-2023-3359

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-06-28 · updated 2026-06-17
Weakness: CWE-476

Description

An issue was discovered in the Linux kernel brcm_nvram_parse in drivers/nvmem/brcm_nvram.c. Lacks for the check of the return value of kzalloc() can cause the NULL Pointer Dereference.

Affected products

Linux kernel: before 6.2; 6.2-rc1, 6.2-rc2, 6.2-rc3, 6.2-rc4, 6.2-rc5, 6.2-rc6 — fixed in 6.2

How to fix

Upgrade to a fixed version: Linux kernel 6.2. Check the vendor advisory for mitigations.

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b0576ade3aaf24b376ea1a4406ae138e2a22b0c0
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b0576ade3aaf24b376ea1a4406ae138e2a22b0c0

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