syzbot


KCSAN: data-race in __dev_queue_xmit / __dev_queue_xmit (5)
Status: internal: reported on 2021/11/23 12:29
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 7a10d8c810cf net: annotate data-races on txq->xmit_lock_owner
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: 64d, last: 64d
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KCSAN: data-race in __dev_queue_xmit / __dev_queue_xmit (4) 2 360d 370d 0/22 auto-closed as invalid on 2021/03/05 12:45
upstream KCSAN: data-race in __dev_queue_xmit / __dev_queue_xmit (3) 1 529d 529d 0/22 auto-closed as invalid on 2020/09/17 17:51
upstream KCSAN: data-race in __dev_queue_xmit / __dev_queue_xmit (2) 37 588d 762d 0/22 closed as invalid on 2020/06/18 14:24
upstream KCSAN: data-race in __dev_queue_xmit / __dev_queue_xmit 40 774d 824d 16/22 fixed on 2019/12/13 00:31

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-kcsan-gce 2021/11/21 20:55 upstream 923dcc5eb0c1 4eb20a4e .config log report info KCSAN: data-race in __dev_queue_xmit / __dev_queue_xmit