CVE-2025-39816 io_uring/kbuf: always use READ_ONCE() to read ring provided buffer lengths

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: always use READONCE to read ring provided buffer lengths Since the buffers are mapped from userspace, it is prudent to use READONCE to read the value into a local variable, and use that for any other actions taken...

PT-2025-37961

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The Linux kernel contains an issue in the io uring/kbuf subsystem where buffer lengths are not consistently read. This is due to the use of potentially unstable reads of user-space...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a failure to read the ring buffer length using READONCE, which could lead to data inconsistency...