CVE-2024-47658 crypto: stm32/cryp - call finalize with bh disabled
A missing bottom-half disable in the STM32 crypto driver causes a spinlock recursion warning, potentially leading to a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-47658?
CVE-2024-47658 is a high-severity denial of service vulnerability in Linux kernel, published on 9 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
crypto: stm32/cryp - call finalize with bh disabled
The finalize operation in interrupt mode produce a produces a spinlock recursion warning. The reason is the fact that BH must be disabled during this process.
Which versions are affected by CVE-2024-47658?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-47658?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-47658 being exploited?
There is no known exploitation of CVE-2024-47658 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-50919, BELL-CVE-2024-47658, DEBIAN-CVE-2024-47658, GHSA-q97h-2fjm-733c, ROOT-OS-DEBIAN-11-CVE-2024-47658, ROOT-OS-DEBIAN-12-CVE-2024-47658 and 2 more.