CVE-2024-53187: io_uring: check for overflows in io_pin_pages
First published: Fri Dec 27 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <6.11.11 | |
| Linux Kernel | >=6.12<6.12.2 | |
| debian/linux | <=5.10.223-1<=5.10.226-1<=6.1.123-1<=6.1.128-1 | 6.12.12-1 6.12.15-1 |
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Reference Links
- https://git.kernel.org/stable/c/29eac3eca72d4c2a71122050c37cd7d8f73ac4f3
- https://git.kernel.org/stable/c/aaa90844afd499c9142d0199dfda74439314c013
- https://git.kernel.org/stable/c/0c0a4eae26ac78379d0c1db053de168a8febc6c9
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-53187
- https://nvd.nist.gov/vuln/detail/CVE-2024-53187
- https://launchpad.net/bugs/cve/CVE-2024-53187
- https://security-tracker.debian.org/tracker/CVE-2024-53187
- https://ubuntu.com/security/CVE-2024-53187
- https://git.kernel.org/linus/0c0a4eae26ac78379d0c1db053de168a8febc6c9
Frequently Asked Questions
What is the severity of CVE-2024-53187?
CVE-2024-53187 has a high severity due to potential memory overflow vulnerabilities in the Linux kernel's io_uring functionality.
How do I fix CVE-2024-53187?
To fix CVE-2024-53187, update the Linux kernel to version 6.12.2 or later.
Which Linux kernel versions are affected by CVE-2024-53187?
CVE-2024-53187 affects Linux kernel versions up to 6.11.11 and from 6.12 to 6.12.2.
What components are impacted by CVE-2024-53187?
CVE-2024-53187 specifically impacts the io_uring component in the Linux kernel.
What potential risks are associated with CVE-2024-53187?
The risks associated with CVE-2024-53187 include possible system crashes and unauthorized access due to memory overflows.
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