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Commit 98232d50 authored by Jens Axboe's avatar Jens Axboe
Browse files

[PATCH] compat_sys_vmsplice: one-off in UIO_MAXIOV check 



nr_segs may not be > UIO_MAXIOV, however it may be equal to. This makes
the behaviour identical to the real sys_vmsplice(). The other foov
syscalls also agree that this is the way to go.

Signed-off-by: default avatarJens Axboe <axboe@suse.de>
parent a0548871

fs/compat.c

+1 −1
Original line number Diff line number Diff line
@@ -1323,7 +1323,7 @@ compat_sys_vmsplice(int fd, const struct compat_iovec __user *iov32, 
{

	unsigned i;

	struct iovec *iov;

	if (nr_segs >= UIO_MAXIOV)

	if (nr_segs > UIO_MAXIOV)

		return -EINVAL;

	iov = compat_alloc_user_space(nr_segs * sizeof(struct iovec));

	for (i = 0; i < nr_segs; i++) {