Assert that the mbuf in the chain has sane length. Proper place for

this check is somewhere in the network code, but this assertion
already proven to be useful in catching what seems to be driver bugs
causing NFS scrambling random memory.

Discussed with:	rmacklem
MFC after:	1 week
This commit is contained in:
kib 2013-02-01 16:57:02 +00:00
parent 5c708a87b1
commit 5012e4bd24

View File

@ -218,6 +218,7 @@ nfsm_mbufuio(struct nfsrv_descript *nd, struct uio *uiop, int siz)
}
mbufcp = NFSMTOD(mp, caddr_t);
len = mbuf_len(mp);
KASSERT(len > 0, ("len %d", len));
}
xfer = (left > len) ? len : left;
#ifdef notdef