kernel: Linux kernel: Data corruption and system instability due to improper io_uring/net buffer handling

A flaw was found in the Linux kernel's iouring/net component. This vulnerability arises when ring provided buffers are partially committed during network operations, particularly when MSGWAITALL is enabled or with streaming sockets. A local attacker could exploit this by causing multiple socket...

Linux 6.4 io_uring Use-After-Free

iouring in Linux 6.4 suffers from a iouring page use-after-free condition via buffer ring mmap. Since commit c56e022c0a27 "iouring: add support for user mapped provided buffer ring", landed in Linux 6.4, iouring makes it possible to allocate, mmap, and deallocate "buffer rings". A "buffer ring" c...