CVE-2022-48774 dmaengine: ptdma: Fix the error handling path in pt_core_init()

What is CVE-2022-48774?

CVE-2022-48774 is a medium-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:

dmaengine: ptdma: Fix the error handling path in pt_core_init()

In order to free resources correctly in the error handling path of pt_core_init(), 2 goto's have to be switched. Otherwise, some resources will leak and we will try to release things that have not been allocated yet.

Also move a dev_err() to a place where it is more meaningful.

Which versions are affected by CVE-2022-48774?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-48774?

Apply the vendor's patch.

Is CVE-2022-48774 being exploited?

There is no known exploitation of CVE-2022-48774 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-2022-48774, GHSA-h7f8-97v8-xrfh, UBUNTU-CVE-2022-48774.