CVE-2024-40965 i2c: lpi2c: Avoid calling clk_get_rate during transfer

What is CVE-2024-40965?

CVE-2024-40965 is a medium-severity vulnerability in Linux kernel, published on 12 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:

i2c: lpi2c: Avoid calling clk_get_rate during transfer

Instead of repeatedly calling clk_get_rate for each transfer, lock the clock rate and cache the value. A deadlock has been observed while adding tlv320aic32x4 audio codec to the system. When this clock provider adds its clock, the clk mutex is locked already, it needs to access i2c, which in return needs the mutex for clk_get_rate as well.

Weakness: CWE-667

Which versions are affected by CVE-2024-40965?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-40965?

Apply the vendor's patch.

Is CVE-2024-40965 being exploited?

There is no known exploitation of CVE-2024-40965 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 AZL-48957, AZL-48969, BELL-CVE-2024-40965, DEBIAN-CVE-2024-40965, GHSA-r49f-c964-6w6w, ROOT-OS-DEBIAN-11-CVE-2024-40965 and 2 more.