syzbot


KCSAN: data-race in __nf_conntrack_alloc / __nf_conntrack_find_get (3)
Status: internal: reported on 2021/12/07 09:02
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 802a7dc5cf1b netfilter: conntrack: annotate data-races around ct->timeout
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: 54d, last: 51d
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KCSAN: data-race in __nf_conntrack_alloc / __nf_conntrack_find_get 1 735d 735d 0/22 auto-closed as invalid on 2020/04/02 17:02
upstream KCSAN: data-race in __nf_conntrack_alloc / __nf_conntrack_find_get (2) 2 410d 414d 0/22 auto-closed as invalid on 2021/01/16 23:05

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-kcsan-gce 2021/12/07 05:18 upstream f80ef9e49fdf 0230ba3e .config log report info KCSAN: data-race in __nf_conntrack_alloc / __nf_conntrack_find_get
ci2-upstream-kcsan-gce 2021/12/04 15:28 upstream 12119cfa1052 a617004c .config log report info KCSAN: data-race in __nf_conntrack_alloc / __nf_conntrack_find_get