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...

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...

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 mappe...