syzbot


KCSAN: data-race in inet_send_prepare / udp_lib_get_port (3)
Status: internal: reported on 2021/06/07 12:32
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: dcd01eeac144 inet: annotate data race in inet_send_prepare() and inet_dgram_connect()
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-arm32]
First crash: 47d, last: 44d
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KCSAN: data-race in inet_send_prepare / udp_lib_get_port (2) 1 99d 99d 0/22 auto-closed as invalid on 2021/05/21 15:38
upstream KCSAN: data-race in inet_send_prepare / udp_lib_get_port 1 623d 623d 0/22 closed as invalid on 2019/11/19 14:44

Sample crash report:

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-kcsan-gce 2021/06/10 11:44 upstream cd1245d75ce9 1ba81399 .config log report info KCSAN: data-race in inet_send_prepare / udp_lib_get_port
ci2-upstream-kcsan-gce 2021/06/08 22:07 upstream 4c8684fe555e 5c2fe346 .config log report info KCSAN: data-race in inet_send_prepare / udp_lib_get_port
ci2-upstream-kcsan-gce 2021/06/08 00:19 upstream 614124bea77e b718257f .config log report info KCSAN: data-race in inet_send_prepare / udp_lib_get_port
ci2-upstream-kcsan-gce 2021/06/06 22:32 upstream decad3e1d1ed 500c2339 .config log report info KCSAN: data-race in inet_send_prepare / udp_lib_get_port