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Commit 005b23d6 authored by Dan Carpenter's avatar Dan Carpenter Committed by Greg Kroah-Hartman
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staging: lustre: prevent underflows in lnet_parse_reply() 



I don't know if "hdr->payload_length;" can really be negative, but if so
then we shouldn't allow it.  Do the comparison as an unsigned.

Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent faec8ab4

drivers/staging/lustre/lnet/lnet/lib-move.c

+1 −1
Original line number Diff line number Diff line
@@ -1530,7 +1530,7 @@ lnet_parse_reply(lnet_ni_t *ni, lnet_msg_t *msg) 
	LASSERT(md->md_offset == 0);



	rlength = hdr->payload_length;

	mlength = min_t(int, rlength, md->md_length);

	mlength = min_t(uint, rlength, md->md_length);



	if (mlength < rlength &&

	    (md->md_options & LNET_MD_TRUNCATE) == 0) {