What’s Vulnerable › Vulnerabilities

CVE-2024-56730: net/9p/usbg: fix handling of the failed kzalloc() memory allocation

• 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: 2024-12-29 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: net/9p/usbg: fix handling of the failed kzalloc() memory allocation On the linux-next, next-20241108 vanilla kernel, the coccinelle tool gave the following error report: ./net/9p/trans_usbg.c:912:5-11: ERROR: allocation function on line 911 returns NULL not ERR_PTR on failure kzalloc() failure is fixed to handle the NULL return case on the memory exhaustion.

Affected products

• Linux kernel: from 6.12 before 6.12.2 — fixed in 6.12.2

How to fix

Upgrade to a fixed version: Linux kernel 6.12.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2cdb416de8b5795fd25fadcb69e1198b6df6d8cc
• https://git.kernel.org/stable/c/ff1060813d9347e8c45c8b8cff93a4dfdb6726ad

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