CVE-2024-53187

Summary

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.

Impact & exploitability

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://git.kernel.org/stable/c/0c0a4eae26ac78379d0c1db053de168a8febc6c9 ↗

Additional information

• NVD record
• https://git.kernel.org/stable/c/0c0a4eae26ac78379d0c1db053de168a8febc6c9Patch
• https://git.kernel.org/stable/c/29eac3eca72d4c2a71122050c37cd7d8f73ac4f3Patch
• https://git.kernel.org/stable/c/aaa90844afd499c9142d0199dfda74439314c013Patch
• https://git.kernel.org/stable/c/1a0aecabff72a95d240e6d7645949bfe0620dcd7
• https://git.kernel.org/stable/c/f1938217aee05be1c1dc53f581a3c353d033b508