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| author | Michael Tuexen <tuexen@FreeBSD.org> | 2021-03-22 15:40:41 +0000 |
|---|---|---|
| committer | Michael Tuexen <tuexen@FreeBSD.org> | 2021-03-22 15:44:18 +0000 |
| commit | d995cc7e5431873b839269fe22577acfa3b157bd (patch) | |
| tree | 9c3ab7b2c07f3b9607f229d91ed8c2ef0a96e7ce | |
| parent | 048488c0c4e47aa2aac9709b18d7da14b06f78cd (diff) | |
| download | src-d995cc7e5431873b839269fe22577acfa3b157bd.tar.gz src-d995cc7e5431873b839269fe22577acfa3b157bd.zip | |
sctp: fix handling of RTO.initial of 1 ms
MFC after: 3 days
Reported by: syzbot+5eb0e009147050056ce9@syzkaller.appspotmail.com
| -rw-r--r-- | sys/netinet/sctputil.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/netinet/sctputil.c b/sys/netinet/sctputil.c index 7ddb4c3710df..5d4b3347a2c9 100644 --- a/sys/netinet/sctputil.c +++ b/sys/netinet/sctputil.c @@ -2277,7 +2277,9 @@ sctp_timer_start(int t_type, struct sctp_inpcb *inp, struct sctp_tcb *stcb, } rndval = sctp_select_initial_TSN(&inp->sctp_ep); jitter = rndval % to_ticks; - to_ticks >>= 1; + if (to_ticks > 1) { + to_ticks >>= 1; + } if (jitter < (UINT32_MAX - to_ticks)) { to_ticks += jitter; } else { |