CVE-2025-68814

In the Linux kernel, the following vulnerability has been resolved:

io_uring: fix filename leak in __io_openat_prep()

__io_openat_prep() allocates a struct filename using getname(). However,

for the condition of the file being installed in the fixed file table as

well as having O_CLOEXEC flag set, the function returns early. At that

point, the request doesn't have REQ_F_NEED_CLEANUP flag set. Due to this,

the memory for the newly allocated struct filename is not cleaned up,

causing a memory leak.

Fix this by setting the REQ_F_NEED_CLEANUP for the request just after the

successful getname() call, so that when the request is torn down, the

filename will be cleaned up, along with other resources needing cleanup.