tree d05f085f110325cf7e8c2bdda642b561225989ae
parent 7314e613d5ff9f0934f7a0f74ed7973b903315d1
author Dan Carpenter <dan.carpenter@oracle.com> 1383073564 +0300
committer Linus Torvalds <torvalds@linux-foundation.org> 1383161089 -0700

uml: check length in exitcode_proc_write()

We don't cap the size of buffer from the user so we could write past the
end of the array here.  Only root can write to this file.

Reported-by: Nico Golde <nico@ngolde.de>
Reported-by: Fabian Yamaguchi <fabs@goesec.de>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>