tree 99f8eb6dede1e8eaf467e4513e22a837ae673995
parent a0a6df9afcaf439a6b4c88a3b522e3d05fdef46f
author Christoph Hellwig <hch@lst.de> 1610385566 +0100
committer Al Viro <viro@zeniv.linux.org.uk> 1610769102 -0500

iov_iter: fix the uaccess area in copy_compat_iovec_from_user

sizeof needs to be called on the compat pointer, not the native one.

Fixes: 89cd35c58bc2 ("iov_iter: transparently handle compat iovecs in import_iovec")
Reported-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>