Re: [PATCH 2/2] fs: remove the inode argument to ->d_real() method

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


On Fri, Feb 02, 2024 at 06:27:32PM +0000, Al Viro wrote:

> 	Think what happens if you fetch ->len in state prior to
> rename and ->name - after.  memcpy() from one memory object
> with length that matches another, UAF right there.

	s/UAF/fairly easy oops/ - you can end up fetching past the end of
page that hosts kmalloc'ed object, and there's no promise that anything
will be mapped there.  I really need more coffee...

[Index of Archives]     [Linux Filesystems Devel]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux