syzbot


KCSAN: data-race in skb_queue_tail / unix_dgram_poll (4)
Status: internal: reported on 2021/09/06 18:19
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 04f08eb44b50 net/af_unix: fix a data-race in unix_dgram_poll
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte 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-riscv64]
First crash: 98d, last: 85d
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KCSAN: data-race in skb_queue_tail / unix_dgram_poll (3) 1 300d 300d 0/22 auto-closed as invalid on 2021/03/17 02:28
upstream KCSAN: data-race in skb_queue_tail / unix_dgram_poll 2 765d 773d 0/22 closed as invalid on 2019/11/19 13:24
upstream KCSAN: data-race in skb_queue_tail / unix_dgram_poll (2) 1 490d 490d 0/22 auto-closed as invalid on 2020/09/08 00:38

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-kcsan-gce 2021/09/12 06:11 upstream c605c39677b9 3ce60af8 .config log report info KCSAN: data-race in skb_queue_tail / unix_dgram_poll
ci2-upstream-kcsan-gce 2021/08/30 23:34 upstream 8596e589b787 8f58a0ef .config log report info KCSAN: data-race in skb_queue_tail / unix_dgram_poll