Author: ngie
Date: Wed Jun 8 12:45:22 2016
New Revision: 301605
URL: https://svnweb.freebsd.org/changeset/base/301605
Log:
Bounds check rpcbs_rmtcall(..) to ensure rtype is less than RPCBVERS_STAT
Not returning if rtype == RPCBVERS_STAT will cause us to overrun the inf
array, as
it's defined to be exactly RPCBVERS_STAT elements in rpcb_prot.x:
> include/rpc/rpcb_prot.x:typedef rpcb_stat rpcb_stat_byvers[RPCBVERS_STAT];
The proposed change also matches the rest of the rtype upper bound checks in
the
file, so the original change was likely a typo.
MFC after: 2 weeks
Reported by: Coverity
CID: 1007567
Reviewed by: truckman
Sponsored by: EMC / Isilon Storage Division
Modified:
head/usr.sbin/rpcbind/rpcb_stat.c
Modified: head/usr.sbin/rpcbind/rpcb_stat.c
==============================================================================
--- head/usr.sbin/rpcbind/rpcb_stat.c Wed Jun 8 12:40:21 2016
(r301604)
+++ head/usr.sbin/rpcbind/rpcb_stat.c Wed Jun 8 12:45:22 2016
(r301605)
@@ -151,7 +151,7 @@ rpcbs_rmtcall(rpcvers_t rtype, rpcproc_t
rpcbs_rmtcalllist *rl;
struct netconfig *nconf;
- if (rtype > RPCBVERS_STAT)
+ if (rtype >= RPCBVERS_STAT)
return;
for (rl = inf[rtype].rmtinfo; rl; rl = rl->next) {
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