CVE-2024-56562 i3c: master: Fix miss free init_dyn_addr at i3c_master_put_i3c_addrs()
A copy-paste error in the Linux kernel I3C master driver causes incorrect memory freeing, potentially leading to system crashes or instability.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-56562?
CVE-2024-56562 is a medium-severity memory corruption vulnerability in Linux kernel, published on 27 Dec 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:
i3c: master: Fix miss free init_dyn_addr at i3c_master_put_i3c_addrs()
if (dev->boardinfo && dev->boardinfo->init_dyn_addr) ^^^ here check "init_dyn_addr" i3c_bus_set_addr_slot_status(&master->bus, dev->info.dyn_addr, ...) ^^^^ free "dyn_addr" Fix copy/paste error "dyn_addr" by replacing it with "init_dyn_addr".
Which versions are affected by CVE-2024-56562?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-56562?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-56562 being exploited?
There is no known exploitation of CVE-2024-56562 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-56562, DEBIAN-CVE-2024-56562, GHSA-42gj-pw36-ccpv, UBUNTU-CVE-2024-56562.