CVE-2022-48820 phy: stm32: fix a refcount leak in stm32_usbphyc_pll_enable()

What is CVE-2022-48820?

CVE-2022-48820 is a high-severity vulnerability in Linux kernel, published on 16 Jul 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

phy: stm32: fix a refcount leak in stm32_usbphyc_pll_enable()

This error path needs to decrement "usbphyc->n_pll_cons.counter" before returning.

Which versions are affected by CVE-2022-48820?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-48820?

Apply the vendor's patch.

Is CVE-2022-48820 being exploited?

There is no known exploitation of CVE-2022-48820 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2022-48820, GHSA-wjwm-hw3c-78ch, UBUNTU-CVE-2022-48820.