aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorMichael Tuexen <tuexen@FreeBSD.org>2025-01-03 18:44:43 +0000
committerMichael Tuexen <tuexen@FreeBSD.org>2025-01-03 18:44:43 +0000
commit88766e7af52bbde32b14ad48fb76798a3ba4650c (patch)
tree2e731a4fd6763d5105565bdc7c7977a16a25e298
parentd72f87c0fd1418bdb814594ea8fc76a202f7d5c6 (diff)
TCP BBR: fix integer overflow
Use 64-bit arithmetic. Reviewed by: rrs CID: 1523806 MFC after: 1 week Sponsored by: Netflix, Inc. Differential Revision: https://reviews.freebsd.org/D48302
-rw-r--r--sys/netinet/tcp_stacks/bbr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/netinet/tcp_stacks/bbr.c b/sys/netinet/tcp_stacks/bbr.c
index fd5bcd81f25e..9e1f83df4298 100644
--- a/sys/netinet/tcp_stacks/bbr.c
+++ b/sys/netinet/tcp_stacks/bbr.c
@@ -3843,7 +3843,7 @@ bbr_post_recovery(struct tcpcb *tp)
else if (bbr->r_ctl.rc_delivered == 0)
lr2use = 1000;
else {
- lr2use = bbr->r_ctl.rc_lost * 1000;
+ lr2use = (uint64_t)bbr->r_ctl.rc_lost * (uint64_t)1000;
lr2use /= bbr->r_ctl.rc_delivered;
}
lr2use += bbr->r_ctl.recovery_lr;