syzbot


BUG: "hc->tx_t_ipi == NUM" holds (exception!) at net/dccp/ccids/ccid3.c:LINE/ccid3_update_send_interval()
Status: upstream: reported C repro on 2022/01/10 16:16
Reported-by: syzbot+94641ba6c1d768b1e35e@syzkaller.appspotmail.com
First crash: 15d, last: 18h07m

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: BUG: "hc->tx_t_ipi == NUM" holds (exception!) at net/dccp/ccids/ccid3.c:LINE/ccid3_update_send_interval() (log)
Repro: C syz .config
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 BUG: "hc->tx_t_ipi == NUM" holds (exception!) at net/dccp/ccids/ccid3.c:LINE/ccid3_update_send_interval() C 2 2d07h 2d08h 0/1 upstream: reported C repro on 2022/01/22 17:14

Sample crash report:

Crashes (6):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2022/01/24 07:32 upstream dd81e1c7d5fb 214351e1 .config log report syz C BUG: "hc->tx_t_ipi == NUM" holds (exception!) at net/dccp/ccids/ccid3.c:LINE/ccid3_update_send_interval()
ci-upstream-net-kasan-gce 2022/01/09 11:15 net-next 82192cb497f9 2ca0d385 .config log report syz C BUG: "hc->tx_t_ipi == NUM" holds (exception!) at net/dccp/ccids/ccid3.c:LINE/ccid3_update_send_interval()
ci-upstream-kasan-gce-selinux-root 2022/01/17 09:41 upstream 79e06c4c4950 723cfaf0 .config log report info BUG: "hc->tx_t_ipi == NUM" holds (exception!) at net/dccp/ccids/ccid3.c:LINE/ccid3_update_send_interval()
ci-upstream-kasan-gce-386 2022/01/15 09:17 upstream 112450df61b7 723cfaf0 .config log report info BUG: "hc->tx_t_ipi == NUM" holds (exception!) at net/dccp/ccids/ccid3.c:LINE/ccid3_update_send_interval()
ci-upstream-net-this-kasan-gce 2022/01/12 08:05 net 29b3881b7977 44d1319a .config log report info BUG: "hc->tx_t_ipi == NUM" holds (exception!) at net/dccp/ccids/ccid3.c:LINE/ccid3_update_send_interval()
ci-upstream-net-kasan-gce 2022/01/09 05:57 net-next 82192cb497f9 2ca0d385 .config log report info BUG: "hc->tx_t_ipi == NUM" holds (exception!) at net/dccp/ccids/ccid3.c:LINE/ccid3_update_send_interval()