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================================================================== BUG: KCSAN: data-race in br_handle_frame_finish / br_handle_frame_finish read-write to 0xffff888023429148 of 8 bytes by interrupt on cpu 1: br_handle_frame_finish+0x939/0xa10 net/bridge/br_input.c:146 br_nf_hook_thresh+0x184/0x1c0 net/bridge/br_netfilter_hooks.c:1021 br_nf_pre_routing_finish_ipv6+0x473/0x490 net/bridge/br_netfilter_ipv6.c:187 NF_HOOK include/linux/netfilter.h:301 [inline] br_nf_pre_routing_ipv6+0x1ed/0x280 net/bridge/br_netfilter_ipv6.c:236 br_nf_pre_routing+0x4c0/0xb20 net/bridge/br_netfilter_hooks.c:505 nf_hook_entry_hookfn include/linux/netfilter.h:136 [inline] nf_hook_bridge_pre net/bridge/br_input.c:228 [inline] br_handle_frame+0x403/0xae0 net/bridge/br_input.c:356 __netif_receive_skb_core+0xa5c/0x1dd0 net/core/dev.c:5209 __netif_receive_skb_one_core net/core/dev.c:5313 [inline] __netif_receive_skb+0x52/0x1b0 net/core/dev.c:5429 process_backlog+0x23f/0x3d0 net/core/dev.c:6319 napi_poll+0x178/0x4c0 net/core/dev.c:6763 net_rx_action+0x17a/0x480 net/core/dev.c:6833 __do_softirq+0x12c/0x2b1 kernel/softirq.c:298 run_ksoftirqd+0x13/0x20 kernel/softirq.c:653 smpboot_thread_fn+0x34f/0x520 kernel/smpboot.c:165 kthread+0x1fa/0x220 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 read-write to 0xffff888023429148 of 8 bytes by interrupt on cpu 0: br_handle_frame_finish+0x939/0xa10 net/bridge/br_input.c:146 br_nf_hook_thresh+0x184/0x1c0 net/bridge/br_netfilter_hooks.c:1021 br_nf_pre_routing_finish_ipv6+0x473/0x490 net/bridge/br_netfilter_ipv6.c:187 NF_HOOK include/linux/netfilter.h:301 [inline] br_nf_pre_routing_ipv6+0x1ed/0x280 net/bridge/br_netfilter_ipv6.c:236 br_nf_pre_routing+0x4c0/0xb20 net/bridge/br_netfilter_hooks.c:505 nf_hook_entry_hookfn include/linux/netfilter.h:136 [inline] nf_hook_bridge_pre net/bridge/br_input.c:228 [inline] br_handle_frame+0x403/0xae0 net/bridge/br_input.c:356 __netif_receive_skb_core+0xa5c/0x1dd0 net/core/dev.c:5209 __netif_receive_skb_one_core net/core/dev.c:5313 [inline] __netif_receive_skb+0x52/0x1b0 net/core/dev.c:5429 process_backlog+0x23f/0x3d0 net/core/dev.c:6319 napi_poll+0x178/0x4c0 net/core/dev.c:6763 net_rx_action+0x17a/0x480 net/core/dev.c:6833 __do_softirq+0x12c/0x2b1 kernel/softirq.c:298 run_ksoftirqd+0x13/0x20 kernel/softirq.c:653 smpboot_thread_fn+0x34f/0x520 kernel/smpboot.c:165 kthread+0x1fa/0x220 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 10 Comm: ksoftirqd/0 Not tainted 5.10.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/11/22 17:41 | upstream | a349e4c65960 | 0d27f508 | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/11/18 21:21 | upstream | c2e7554e1b85 | 0767f13f | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/11/07 15:53 | upstream | 659caaf65dc9 | cba33199 | .config | console log | report | info | ci2-upstream-kcsan-gce |