Medium 5.5Published Dec 27, 2024

CVE-2024-53187io_uring: check for overflows in io_pin_pages

Updated under an hour ago (Oct 27, 2026, 12:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-190
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 21, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	2b188cc1bb857a9d4701ae59aa7768b5124e262e builds before 1a0aecabff72a95d240e6d7645949bfe0620dcd7; from 2b188cc1bb857a9d4701ae59aa7768b5124e262e before 29eac3eca72d4c2a71122050c37cd7d8f73ac4f3; from 2b188cc1bb857a9d4701ae59aa7768b5124e262e before aaa90844afd499c9142d0199dfda74439314c013; 2b188cc1bb857a9d4701ae59aa7768b5124e262e builds before 0c0a4eae26ac78379d0c1db053de168a8febc6c9	CNA record
linux linux_kernel linux:linux_kernel	before 6.11.11; from 6.12 before 6.12.2	NVD

References

References

https://git.kernel.org/stable/c/1a0aecabff72a95d240e6d7645949bfe0620dcd7
https://git.kernel.org/stable/c/29eac3eca72d4c2a71122050c37cd7d8f73ac4f3	patch
https://git.kernel.org/stable/c/aaa90844afd499c9142d0199dfda74439314c013	patch
https://git.kernel.org/stable/c/0c0a4eae26ac78379d0c1db053de168a8febc6c9	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.