CVE-2024-53187 io_uring: check for overflows in io_pin_pages
An integer overflow in the Linux kernel's io_uring subsystem allows local attackers to trigger a system crash via crafted user addresses.
- 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-2024-53187?
CVE-2024-53187 is a medium-severity 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:
io_uring: check for overflows in io_pin_pages
WARNING: CPU: 0 PID: 5834 at io_uring/memmap.c:144 io_pin_pages+0x149/0x180 io_uring/memmap.c:144 CPU: 0 UID: 0 PID: 5834 Comm: syz-executor825 Not tainted 6.12.0-next-20241118-syzkaller #0 Call Trace: <TASK> __io_uaddr_map+0xfb/0x2d0 io_uring/memmap.c:183 io_rings_map io_uring/io_uring.c:2611 [inline] io_allocate_scq_urings+0x1c0/0x650 io_uring/io_uring.c:3470 io_uring_create+0x5b5/0xc00 io_uring/io_uring.c:3692 io_uring_setup io_uring/io_uring.c:3781 [inline] ... </TASK>
io_pin_pages()'s uaddr parameter came directly from the user and can be garbage. Don't just add size to it as it can overflow.
Weakness: CWE-190
Which versions are affected by CVE-2024-53187?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-53187?
Apply the vendor's patch.
Is CVE-2024-53187 being exploited?
There is no known exploitation of CVE-2024-53187 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-55712, AZL-55757, BELL-CVE-2024-53187, DEBIAN-CVE-2024-53187, GHSA-cpf2-vjq3-4h5q, ROOT-OS-DEBIAN-11-CVE-2024-53187 and 3 more.