syzbot


KCSAN: data-race in inet_dgram_connect / udp_lib_get_port (5)
Status: internal: reported on 2021/06/10 14:00
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: 124d, last: 56d
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KCSAN: data-race in inet_dgram_connect / udp_lib_get_port 1 635d 635d 0/22 closed as invalid on 2019/11/19 13:44
upstream KCSAN: data-race in inet_dgram_connect / udp_lib_get_port (2) 3 603d 609d 0/22 auto-closed as invalid on 2020/02/05 16:37
upstream KCSAN: data-race in inet_dgram_connect / udp_lib_get_port (3) 1 259d 224d 0/22 auto-closed as invalid on 2020/12/25 11:24
upstream KCSAN: data-race in inet_dgram_connect / udp_lib_get_port (4) 1 172d 172d 0/22 auto-closed as invalid on 2021/03/07 18:58

Sample crash report:

Crashes (6):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-kcsan-gce 2021/05/28 14:16 upstream 97e5bf604b7a 858ea628 .config log report info KCSAN: data-race in inet_dgram_connect / udp_lib_get_port
ci2-upstream-kcsan-gce 2021/05/24 23:28 upstream c4681547bcce 3c7fef33 .config log report info KCSAN: data-race in inet_dgram_connect / udp_lib_get_port
ci2-upstream-kcsan-gce 2021/04/28 03:12 upstream e359bce39d90 805b5003 .config log report info KCSAN: data-race in inet_dgram_connect / udp_lib_get_port
ci2-upstream-kcsan-gce 2021/04/26 16:13 upstream 9f4ad9e425a1 805b5003 .config log report info KCSAN: data-race in inet_dgram_connect / udp_lib_get_port
ci2-upstream-kcsan-gce 2021/04/24 07:08 upstream 8db5efb83fa9 17f0b706 .config log report info KCSAN: data-race in inet_dgram_connect / udp_lib_get_port
ci2-upstream-kcsan-gce 2021/03/21 02:38 upstream 812da4d39463 17810eae .config log report info KCSAN: data-race in inet_dgram_connect / udp_lib_get_port