Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KMSAN: uninit-value in bpf_skb_load_helper_8 bpf net | C | 47 | 1430d | 1431d | 0/26 | closed as invalid on 2020/05/28 10:23 |
syzbot |
sign-in | mailing list | source | docs |
🐞 Open [993] ≡ Subsystems 🐞 Fixed [5244] 🐞 Invalid [12515] ⬇ Missing Backports [83] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes | 💬 Send us feedback |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KMSAN: uninit-value in bpf_skb_load_helper_8 bpf net | C | 47 | 1430d | 1431d | 0/26 | closed as invalid on 2020/05/28 10:23 |
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready ===================================================== BUG: KMSAN: uninit-value in ____bpf_skb_load_helper_8 net/core/filter.c:184 [inline] BUG: KMSAN: uninit-value in bpf_skb_load_helper_8+0xe0/0x290 net/core/filter.c:178 CPU: 1 PID: 8358 Comm: kworker/1:3 Not tainted 5.8.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: ipv6_addrconf addrconf_dad_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1df/0x240 lib/dump_stack.c:118 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:121 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215 ____bpf_skb_load_helper_8 net/core/filter.c:184 [inline] bpf_skb_load_helper_8+0xe0/0x290 net/core/filter.c:178 ___bpf_prog_run+0x214d/0x97a0 kernel/bpf/core.c:1516 __bpf_prog_run32+0x101/0x170 kernel/bpf/core.c:1681 bpf_dispatcher_nop_func include/linux/bpf.h:556 [inline] bpf_prog_run_pin_on_cpu include/linux/filter.h:597 [inline] bpf_prog_run_clear_cb include/linux/filter.h:719 [inline] run_filter net/packet/af_packet.c:2012 [inline] packet_rcv+0x70f/0x2150 net/packet/af_packet.c:2085 dev_queue_xmit_nit+0x11a0/0x1280 net/core/dev.c:2355 xmit_one net/core/dev.c:3552 [inline] dev_hard_start_xmit+0x20c/0xa70 net/core/dev.c:3572 __dev_queue_xmit+0x2f8d/0x3b20 net/core/dev.c:4131 dev_queue_xmit+0x4b/0x60 net/core/dev.c:4164 neigh_connected_output+0x662/0x6e0 net/core/neighbour.c:1518 neigh_output include/net/neighbour.h:509 [inline] ip6_finish_output2+0x20fb/0x2620 net/ipv6/ip6_output.c:117 __ip6_finish_output+0x824/0x8e0 net/ipv6/ip6_output.c:143 ip6_finish_output+0x166/0x410 net/ipv6/ip6_output.c:153 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x60a/0x770 net/ipv6/ip6_output.c:176 dst_output include/net/dst.h:443 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ndisc_send_skb+0x1047/0x15a0 net/ipv6/ndisc.c:506 ndisc_send_ns+0xe38/0xe80 net/ipv6/ndisc.c:648 addrconf_dad_work+0xc2e/0x2ac0 net/ipv6/addrconf.c:4090 process_one_work+0x1540/0x1f30 kernel/workqueue.c:2269 worker_thread+0xed2/0x23f0 kernel/workqueue.c:2415 kthread+0x515/0x550 kernel/kthread.c:292 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:293 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:144 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:310 __msan_chain_origin+0x50/0x90 mm/kmsan/kmsan_instr.c:165 ___bpf_prog_run+0x6c80/0x97a0 kernel/bpf/core.c:1391 __bpf_prog_run32+0x101/0x170 kernel/bpf/core.c:1681 bpf_dispatcher_nop_func include/linux/bpf.h:556 [inline] bpf_prog_run_pin_on_cpu include/linux/filter.h:597 [inline] bpf_prog_run_clear_cb include/linux/filter.h:719 [inline] run_filter net/packet/af_packet.c:2012 [inline] packet_rcv+0x70f/0x2150 net/packet/af_packet.c:2085 dev_queue_xmit_nit+0x11a0/0x1280 net/core/dev.c:2355 xmit_one net/core/dev.c:3552 [inline] dev_hard_start_xmit+0x20c/0xa70 net/core/dev.c:3572 __dev_queue_xmit+0x2f8d/0x3b20 net/core/dev.c:4131 dev_queue_xmit+0x4b/0x60 net/core/dev.c:4164 neigh_connected_output+0x662/0x6e0 net/core/neighbour.c:1518 neigh_output include/net/neighbour.h:509 [inline] ip6_finish_output2+0x20fb/0x2620 net/ipv6/ip6_output.c:117 __ip6_finish_output+0x824/0x8e0 net/ipv6/ip6_output.c:143 ip6_finish_output+0x166/0x410 net/ipv6/ip6_output.c:153 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x60a/0x770 net/ipv6/ip6_output.c:176 dst_output include/net/dst.h:443 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ndisc_send_skb+0x1047/0x15a0 net/ipv6/ndisc.c:506 ndisc_send_ns+0xe38/0xe80 net/ipv6/ndisc.c:648 addrconf_dad_work+0xc2e/0x2ac0 net/ipv6/addrconf.c:4090 process_one_work+0x1540/0x1f30 kernel/workqueue.c:2269 worker_thread+0xed2/0x23f0 kernel/workqueue.c:2415 kthread+0x515/0x550 kernel/kthread.c:292 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:293 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:144 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:310 __msan_chain_origin+0x50/0x90 mm/kmsan/kmsan_instr.c:165 ___bpf_prog_run+0x6cbe/0x97a0 kernel/bpf/core.c:1391 __bpf_prog_run32+0x101/0x170 kernel/bpf/core.c:1681 bpf_dispatcher_nop_func include/linux/bpf.h:556 [inline] bpf_prog_run_pin_on_cpu include/linux/filter.h:597 [inline] bpf_prog_run_clear_cb include/linux/filter.h:719 [inline] run_filter net/packet/af_packet.c:2012 [inline] packet_rcv+0x70f/0x2150 net/packet/af_packet.c:2085 dev_queue_xmit_nit+0x11a0/0x1280 net/core/dev.c:2355 xmit_one net/core/dev.c:3552 [inline] dev_hard_start_xmit+0x20c/0xa70 net/core/dev.c:3572 __dev_queue_xmit+0x2f8d/0x3b20 net/core/dev.c:4131 dev_queue_xmit+0x4b/0x60 net/core/dev.c:4164 neigh_connected_output+0x662/0x6e0 net/core/neighbour.c:1518 neigh_output include/net/neighbour.h:509 [inline] ip6_finish_output2+0x20fb/0x2620 net/ipv6/ip6_output.c:117 __ip6_finish_output+0x824/0x8e0 net/ipv6/ip6_output.c:143 ip6_finish_output+0x166/0x410 net/ipv6/ip6_output.c:153 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x60a/0x770 net/ipv6/ip6_output.c:176 dst_output include/net/dst.h:443 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ndisc_send_skb+0x1047/0x15a0 net/ipv6/ndisc.c:506 ndisc_send_ns+0xe38/0xe80 net/ipv6/ndisc.c:648 addrconf_dad_work+0xc2e/0x2ac0 net/ipv6/addrconf.c:4090 process_one_work+0x1540/0x1f30 kernel/workqueue.c:2269 worker_thread+0xed2/0x23f0 kernel/workqueue.c:2415 kthread+0x515/0x550 kernel/kthread.c:292 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:293 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:144 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:310 __msan_chain_origin+0x50/0x90 mm/kmsan/kmsan_instr.c:165 ___bpf_prog_run+0x6c64/0x97a0 kernel/bpf/core.c:1391 __bpf_prog_run32+0x101/0x170 kernel/bpf/core.c:1681 bpf_dispatcher_nop_func include/linux/bpf.h:556 [inline] bpf_prog_run_pin_on_cpu include/linux/filter.h:597 [inline] bpf_prog_run_clear_cb include/linux/filter.h:719 [inline] run_filter net/packet/af_packet.c:2012 [inline] packet_rcv+0x70f/0x2150 net/packet/af_packet.c:2085 dev_queue_xmit_nit+0x11a0/0x1280 net/core/dev.c:2355 xmit_one net/core/dev.c:3552 [inline] dev_hard_start_xmit+0x20c/0xa70 net/core/dev.c:3572 __dev_queue_xmit+0x2f8d/0x3b20 net/core/dev.c:4131 dev_queue_xmit+0x4b/0x60 net/core/dev.c:4164 neigh_connected_output+0x662/0x6e0 net/core/neighbour.c:1518 neigh_output include/net/neighbour.h:509 [inline] ip6_finish_output2+0x20fb/0x2620 net/ipv6/ip6_output.c:117 __ip6_finish_output+0x824/0x8e0 net/ipv6/ip6_output.c:143 ip6_finish_output+0x166/0x410 net/ipv6/ip6_output.c:153 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x60a/0x770 net/ipv6/ip6_output.c:176 dst_output include/net/dst.h:443 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ndisc_send_skb+0x1047/0x15a0 net/ipv6/ndisc.c:506 ndisc_send_ns+0xe38/0xe80 net/ipv6/ndisc.c:648 addrconf_dad_work+0xc2e/0x2ac0 net/ipv6/addrconf.c:4090 process_one_work+0x1540/0x1f30 kernel/workqueue.c:2269 worker_thread+0xed2/0x23f0 kernel/workqueue.c:2415 kthread+0x515/0x550 kernel/kthread.c:292 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:293 Local variable ----regs@__bpf_prog_run32 created at: __bpf_prog_run32+0x87/0x170 kernel/bpf/core.c:1681 __bpf_prog_run32+0x87/0x170 kernel/bpf/core.c:1681 =====================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/07/19 18:28 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | syz | C | ci-upstream-kmsan-gce | |||
2020/07/19 14:07 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/18 19:55 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/18 17:30 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/18 17:23 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/18 10:50 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/18 08:00 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/18 01:41 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/17 19:39 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/07/19 14:02 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/07/19 06:51 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/07/18 03:40 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/07/18 01:59 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/07/17 19:07 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce-386 | |||||
2020/07/17 17:57 | https://github.com/google/kmsan.git master | 14525656779e | 9c812472 | .config | console log | report | ci-upstream-kmsan-gce-386 |