syzbot


INFO: task hung in rtnetlink_rcv_msg

Status: upstream: reported C repro on 2019/02/22 17:00
Reported-by: syzbot+8218a8a0ff60c19b8eae@syzkaller.appspotmail.com
First crash: 1320d, last: 6d08h

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: INFO: task hung in addrconf_dad_work (log)
Repro: C syz .config

Fix bisection: the fix commit could be any of (bisect log):
  2618500dd370 arm: dts: mediatek: Update mt7629 dts to reflect the latest dt-binding
  c9b96eb6da2a Merge branch 'Update-MT7629-to-support-PHYLINK-API'
  4e3eff5beafa net: ethernet: mediatek: Fix MT7629 missing GMII mode support
  cab209e571a9 tcp: fix a possible lockdep splat in tcp_done()
  8d045995ed5b Merge branch 'mpls-push-pop-fix'
  b790b5549bdf net: dsa: sja1105: Use the correct style for SPDX License Identifier
  39f13ea2f61b net: avoid potential infinite loop in tc_ctl_action()
  fa4e0f8855fc net/sched: fix corrupted L2 header with MPLS 'push' and 'pop' actions
  28aa7c86c2b4 sched: etf: Fix ordering of packets with same txtime
  dedc5a08da07 net: avoid errors when trying to pop MLPS header on non-MPLS packets
  63dfb7938b13 sctp: change sctp_prot .no_autobind with true
  a03681dd5d1b net: cavium: Use the correct style for SPDX License Identifier
  61c1d33daf7b net: i82596: fix dma_alloc_attr for sni_82596
  b31141d390f1 net: dsa: microchip: Use the correct style for SPDX License Identifier
  539825a53604 davinci_cpdma: make cpdma_chan_split_pool static
  ddc790e92b3a net: ethernet: broadcom: have drivers select DIMLIB as needed
  bad28d889cae net: stmmac: make tc_flow_parsers static
  f913eac8e555 net: Update address for vrf and l3mdev in MAINTAINERS
  92696286f3bb net: bcmgenet: Set phydev->dev_flags only for internal PHYs
  efb86fede98c net: bcmgenet: Fix RGMII_MODE_EN value for GENET v1/2/3
  77b6d09f4ae6 net: usb: sr9800: fix uninitialized local variable
  b0818f80c8c1 blackhole_netdev: fix syzkaller reported issue
  bd74708cd979 Revert "blackhole_netdev: fix syzkaller reported issue"
similar bugs (34):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: task hung in rtnetlink_rcv_msg (2) 14 253d 432d 0/1 auto-closed as invalid on 2022/05/18 11:30
linux-4.19 INFO: task hung in rtnetlink_rcv_msg (3) 2 20d 99d 0/1 upstream: reported on 2022/06/20 23:55
linux-4.19 INFO: task hung in rtnetlink_rcv_msg 11 685d 1006d 0/1 auto-closed as invalid on 2021/03/12 19:03
upstream INFO: task hung in cangw_pernet_exit (3) syz unreliable 290 274d 380d 0/24 closed as invalid on 2022/02/08 10:22
upstream INFO: task can't die in rtnetlink_rcv_msg 5 721d 730d 17/24 fixed on 2020/11/16 12:12
upstream INFO: task can't die in synchronize_rcu_expedited 1 773d 769d 0/24 auto-closed as invalid on 2020/10/15 13:33
upstream INFO: task can't die in synchronize_rcu_expedited (2) 2 616d 618d 0/24 auto-closed as invalid on 2021/03/21 09:06
upstream INFO: task hung in nl80211_pre_doit 5 600d 677d 0/24 auto-closed as invalid on 2021/05/17 09:21
linux-4.19 INFO: task hung in nl80211_pre_doit 1 258d 258d 0/1 auto-closed as invalid on 2022/05/13 08:55
upstream INFO: task hung in nl80211_pre_doit (2) 18 344d 384d 0/24 auto-closed as invalid on 2022/01/17 00:54
upstream INFO: task hung in ip_rt_ioctl 3 600d 722d 0/24 auto-closed as invalid on 2021/05/17 08:41
upstream INFO: task hung in __netlink_dump_start (2) 5 263d 345d 0/24 closed as invalid on 2022/02/07 19:19
linux-4.19 INFO: task hung in __netlink_dump_start (2) 1 215d 215d 0/1 auto-closed as invalid on 2022/06/25 14:03
upstream INFO: task hung in sock_ioctl (2) 1 370d 370d 0/24 auto-closed as invalid on 2021/12/21 20:14
linux-4.14 INFO: task hung in sock_ioctl (2) 1 600d 600d 0/1 auto-closed as invalid on 2021/06/05 18:05
upstream INFO: task hung in ip_setsockopt (2) 1 343d 343d 0/24 auto-closed as invalid on 2022/01/17 23:55
upstream INFO: task can't die in pipe_write (2) 1 343d 339d 0/24 auto-closed as invalid on 2021/12/19 10:46
linux-4.19 INFO: task hung in pipe_write C error 7 61d 843d 0/1 upstream: reported C repro on 2020/06/07 01:40
upstream INFO: task hung in pipe_write (4) syz error 7 243d 790d 0/24 upstream: reported syz repro on 2020/07/30 05:04
upstream INFO: task can't die in pipe_write 1 417d 390d 0/24 auto-closed as invalid on 2021/10/06 11:40
linux-4.19 INFO: task hung in ipv6_route_ioctl 1 303d 303d 0/1 auto-closed as invalid on 2022/03/28 22:32
upstream INFO: task hung in ipv6_route_ioctl (2) 1 599d 599d 0/24 auto-closed as invalid on 2021/05/07 00:43
upstream INFO: task hung in dev_ioctl (4) 1 499d 499d 0/24 auto-closed as invalid on 2021/08/15 15:56
linux-4.14 INFO: task hung in dev_ioctl 1 162d 162d 0/1 auto-closed as invalid on 2022/08/17 13:11
upstream INFO: task hung in dev_ioctl (5) 20 342d 387d 0/24 auto-closed as invalid on 2022/01/19 01:57
upstream INFO: task hung in tun_chr_close (4) syz unreliable error 14 319d 380d 0/24 auto-closed as invalid on 2022/09/18 21:51
linux-4.19 INFO: task hung in tun_chr_close (3) 1 54d 54d 0/1 upstream: reported on 2022/08/05 04:48
linux-4.19 INFO: task hung in tun_chr_close (2) 6 267d 361d 0/1 auto-closed as invalid on 2022/05/04 09:03
upstream INFO: task hung in tun_chr_close (3) 1 491d 491d 0/24 auto-closed as invalid on 2021/08/23 13:06
upstream INFO: task hung in tun_chr_close (2) 7 599d 821d 0/24 auto-closed as invalid on 2021/05/17 11:47
upstream INFO: task hung in ipv6_route_ioctl 2 720d 722d 0/24 auto-closed as invalid on 2021/01/06 04:59
linux-4.19 INFO: task hung in __netlink_dump_start 1 844d 844d 0/1 auto-closed as invalid on 2020/10/04 12:25
upstream INFO: task hung in __netlink_dump_start 2 712d 727d 0/24 auto-closed as invalid on 2021/01/13 23:36
upstream INFO: task hung in ip_setsockopt 1 725d 725d 0/24 auto-closed as invalid on 2021/01/01 01:08

Sample crash report:
INFO: task syz-executor234:6579 blocked for more than 143 seconds.
      Not tainted 5.15.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor234 state:D stack:23416 pid: 6579 ppid:  6574 flags:0x00000000
Call Trace:
 context_switch kernel/sched/core.c:4940 [inline]
 __schedule+0x940/0x26f0 kernel/sched/core.c:6287
 schedule+0xd3/0x270 kernel/sched/core.c:6366
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425
 __mutex_lock_common kernel/locking/mutex.c:669 [inline]
 __mutex_lock+0xa34/0x12f0 kernel/locking/mutex.c:729
 rtnl_lock net/core/rtnetlink.c:72 [inline]
 rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5569
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x86d/0xdb0 net/netlink/af_netlink.c:1929
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:724
 __sys_sendto+0x21c/0x320 net/socket.c:2036
 __do_sys_sendto net/socket.c:2048 [inline]
 __se_sys_sendto net/socket.c:2044 [inline]
 __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2044
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1f2d85a4e6
RSP: 002b:00007f1f2da47738 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f1f2da49080 RCX: 00007f1f2d85a4e6
RDX: 000000000000002c RSI: 00007f1f2da490d0 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007f1f2da47754 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1f2da490d0 R14: 0000000000000003 R15: 0000000000000000

Showing all locks held in the system:
1 lock held by khungtaskd/26:
 #0: ffffffff8b97fea0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446
1 lock held by khugepaged/32:
 #0: ffffffff8ba62f08 (lock#5){+.+.}-{3:3}, at: __lru_add_drain_all+0x65/0x760 mm/swap.c:769
3 locks held by kworker/1:1/39:
1 lock held by in:imklog/6256:
 #0: ffff888073019770 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
3 locks held by syz-executor234/6578:
 #0: ffffffff8d0e3b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0: ffffffff8d0e3b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5569
 #1: ffff8880751a12d0 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_open+0x1fc/0x4a0 drivers/net/wireguard/device.c:48
 #2: ffffffff8b989228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
 #2: ffffffff8b989228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:837
1 lock held by syz-executor234/6579:
 #0: ffffffff8d0e3b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0: ffffffff8d0e3b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5569
1 lock held by syz-executor234/6581:
 #0: 
ffffffff8d0e3b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
ffffffff8d0e3b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5569
3 locks held by syz-executor234/6582:
3 locks held by kworker/0:0/6736:
 #0: ffff8881476af538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8881476af538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff8881476af538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
 #0: ffff8881476af538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline]
 #0: ffff8881476af538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline]
 #0: ffff8881476af538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 kernel/workqueue.c:2268
 #1: ffffc9000315fdb0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 kernel/workqueue.c:2272
 #2: ffffffff8d0e3b68 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa3/0x1340 net/ipv6/addrconf.c:4047
3 locks held by kworker/1:2/8461:
 #0: ffff8881476af538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8881476af538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff8881476af538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
 #0: ffff8881476af538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline]
 #0: ffff8881476af538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline]
 #0: ffff8881476af538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 kernel/workqueue.c:2268
 #1: ffffc9000ccffdb0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 kernel/workqueue.c:2272
 #2: ffffffff8d0e3b68 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa3/0x1340 net/ipv6/addrconf.c:4047
3 locks held by kworker/1:5/8485:
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline]
 #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 kernel/workqueue.c:2268
 #1: ffffc9000cd5fdb0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 kernel/workqueue.c:2272
 #2: ffffffff8d0e3b68 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xb/0x60 net/core/link_watch.c:251
3 locks held by kworker/0:5/8497:
1 lock held by syz-executor234/17013:
 #0: ffffffff8b989228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
 #0: ffffffff8b989228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:837
1 lock held by systemd-journal/17202:
5 locks held by kworker/u4:8/27076:
 #0: ffff8880b9c31a58 (&rq->__lock){-.-.}-{2:2}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8880b9c31a58 (&rq->__lock){-.-.}-{2:2}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff8880b9c31a58 (&rq->__lock){-.-.}-{2:2}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
 #0: ffff8880b9c31a58 (&rq->__lock){-.-.}-{2:2}, at: set_work_data kernel/workqueue.c:634 [inline]
 #0: ffff8880b9c31a58 (&rq->__lock){-.-.}-{2:2}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline]
 #0: ffff8880b9c31a58 (&rq->__lock){-.-.}-{2:2}, at: process_one_work+0x8a3/0x16b0 kernel/workqueue.c:2268
 #1: ffffc90009c77db0 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 kernel/workqueue.c:2272
 #2: ffff8880b9d20258 (&base->lock){..-.}-{2:2}, at: __mod_timer+0x60c/0xe30 kernel/time/timer.c:1043
 #3: ffffffff8b9c96f8 (cgroup_rstat_lock){....}-{2:2}, at: cgroup_rstat_flush_irqsafe+0x17/0x40 kernel/cgroup/rstat.c:217
 #4: ffff8880b9d22ef8 (per_cpu_ptr(&cgroup_rstat_cpu_lock, cpu)){..-.}-{2:2}, at: cgroup_rstat_flush_locked+0x146/0xdc0 kernel/cgroup/rstat.c:160

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 26 Comm: khungtaskd Not tainted 5.15.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
 watchdog+0xc1d/0xf50 kernel/hung_task.c:295
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 31664 Comm: syz-executor234 Not tainted 5.15.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rcu_lockdep_current_cpu_online kernel/rcu/tree.c:1169 [inline]
RIP: 0010:rcu_lockdep_current_cpu_online+0x51/0x150 kernel/rcu/tree.c:1160
Code: 7e e8 73 26 d3 07 48 c7 c3 c0 28 03 00 83 f8 07 89 c5 0f 87 f5 00 00 00 48 8d 3c ed 80 78 33 8b 48 b8 00 00 00 00 00 fc ff df <48> 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ad 00 00 00 48 03 1c ed 80
RSP: 0018:ffffc900100f7b58 EFLAGS: 00000297
RAX: dffffc0000000000 RBX: 00000000000328c0 RCX: ffffffff8161c404
RDX: 0000000000000001 RSI: 0000000000000002 RDI: ffffffff8b337880
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff8880b9c32a0b
R10: ffffed1017386541 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: ffff8881528dcc50 R15: ffff8881528dc9e8
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1f2da4f030 CR3: 000000007e53a000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rcu_read_lock_held_common kernel/rcu/update.c:112 [inline]
 rcu_read_lock_held_common kernel/rcu/update.c:102 [inline]
 rcu_read_lock_sched_held+0x25/0x70 kernel/rcu/update.c:123
 trace_lock_release include/trace/events/lock.h:58 [inline]
 lock_release+0x522/0x720 kernel/locking/lockdep.c:5636
 __mutex_unlock_slowpath+0x99/0x5e0 kernel/locking/mutex.c:851
 perf_event_exit_task+0x24a/0x740 kernel/events/core.c:12720
 do_exit+0xbbe/0x2a30 kernel/exit.c:834
 do_group_exit+0x125/0x310 kernel/exit.c:922
 __do_sys_exit_group kernel/exit.c:933 [inline]
 __se_sys_exit_group kernel/exit.c:931 [inline]
 __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:931
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1f2d89ffa9
Code: Unable to access opcode bytes at RIP 0x7f1f2d89ff7f.
RSP: 002b:00007f1f2da47cd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f1f2d924430 RCX: 00007f1f2d89ffa9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffffffffffb8 R09: 00007f1f2d8f01b7
R10: 00007f1f2da47d60 R11: 0000000000000246 R12: 00007f1f2d924430
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
----------------
Code disassembly (best guess):
   0:	7e e8                	jle    0xffffffea
   2:	73 26                	jae    0x2a
   4:	d3 07                	roll   %cl,(%rdi)
   6:	48 c7 c3 c0 28 03 00 	mov    $0x328c0,%rbx
   d:	83 f8 07             	cmp    $0x7,%eax
  10:	89 c5                	mov    %eax,%ebp
  12:	0f 87 f5 00 00 00    	ja     0x10d
  18:	48 8d 3c ed 80 78 33 	lea    -0x74cc8780(,%rbp,8),%rdi
  1f:	8b
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	48 89 fa             	mov    %rdi,%rdx <-- trapping instruction
  2d:	48 c1 ea 03          	shr    $0x3,%rdx
  31:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
  35:	0f 85 ad 00 00 00    	jne    0xe8
  3b:	48                   	rex.W
  3c:	03                   	.byte 0x3
  3d:	1c ed                	sbb    $0xed,%al
  3f:	80                   	.byte 0x80

Crashes (368):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2021/09/22 12:10 upstream 92477dd1faa6 169724fe .config log report syz C INFO: task hung in rtnetlink_rcv_msg
ci-upstream-kasan-gce-root 2019/02/17 08:10 upstream 64c0133eb88a f42dee6d .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/02/17 07:52 upstream 64c0133eb88a f42dee6d .config log report syz C
ci-upstream-net-this-kasan-gce 2019/02/16 09:43 net 24f0a48743a2 f42dee6d .config log report syz C
ci-upstream-net-kasan-gce 2020/10/06 07:58 net-next c2568c8c9e63 1880b4a9 .config log report syz C
ci-upstream-net-kasan-gce 2019/02/16 15:27 net-next bb015f2216fe f42dee6d .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2021/10/21 07:32 linux-next 51dba6e335ff f111d03b .config log report syz C INFO: task can't die in dev_deactivate_many
ci-upstream-linux-next-kasan-gce-root 2021/10/20 21:08 linux-next 51dba6e335ff 418a00eb .config log report syz C INFO: task can't die in dev_deactivate_many
ci-upstream-linux-next-kasan-gce-root 2021/10/20 19:54 linux-next 51dba6e335ff 418a00eb .config log report syz C INFO: task can't die in dev_deactivate_many
ci-upstream-linux-next-kasan-gce-root 2021/01/06 23:52 linux-next 7e4525a4232f c104d4a3 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/02/16 09:44 linux-next 7a92eb7cc1dc f42dee6d .config log report syz C
ci-upstream-kasan-gce-root 2022/09/05 15:04 upstream 7e18e42e4b28 922294ab .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-kasan-gce 2022/08/26 16:55 upstream 4c612826bec1 e5a303f1 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-kasan-gce 2022/08/06 12:20 upstream 200e340f2196 e853abd9 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-kasan-gce-root 2022/07/01 11:21 upstream 1a0e93df1e10 1434eec0 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-kasan-gce-selinux-root 2022/06/30 17:49 upstream d9b2ba67917c 1434eec0 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-kasan-gce-root 2022/06/29 10:51 upstream 941e3e791269 496a8536 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-kasan-gce-root 2022/06/27 10:08 upstream 893d1eaa56e8 a371c43c .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-kasan-gce-root 2022/06/11 13:01 upstream 0885eacdc81f 0d5abf15 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-kasan-gce-smack-root 2021/09/29 19:28 upstream 02d5e016800d be530f6c .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-kasan-gce-386 2022/08/07 07:42 upstream 200e340f2196 88e3a122 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-this-kasan-gce 2022/08/30 03:43 net 1bd3a383075c 5b44472d .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-this-kasan-gce 2022/08/24 05:23 net 1eec80946a73 cea8b0f7 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-this-kasan-gce 2022/07/13 00:18 net f946964a9f79 d91dd8ea .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-this-kasan-gce 2022/07/07 16:17 net 07266d066301 bff65f44 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-this-kasan-gce 2022/07/06 09:33 net e6fa930f73a1 bff65f44 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-this-kasan-gce 2022/07/01 02:06 net 0a18d802d65c 1434eec0 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-this-kasan-gce 2022/07/01 00:18 net 0a18d802d65c 1434eec0 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-this-kasan-gce 2022/06/29 17:46 net 5a478a653b4c 1434eec0 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-this-kasan-gce 2022/06/29 05:17 net ab84db251c04 496a8536 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-this-kasan-gce 2022/06/28 14:25 net 3b0dc529f56b ef82eb2c .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-this-kasan-gce 2022/05/31 22:44 net 3e0b8f529c10 af70c3a9 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-this-kasan-gce 2022/05/28 17:23 net 9bae058ab57f a46af346 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-bpf-kasan-gce 2021/06/28 22:55 bpf d6765985a42a 9d2ab5df .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/09/13 15:10 net-next 41e3b0722f6c a08652b0 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/09/07 02:36 net-next 2786bcff28bd 5fc30c37 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/09/06 13:53 net-next 03fdb11da92f 65aea2b9 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/09/03 13:44 net-next 2e5fb3223261 49e94a20 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/08/31 02:54 net-next d287532edfc2 4a380809 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/08/24 11:20 net-next 6c2c782fa013 cea8b0f7 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/08/17 21:38 net-next 52327d2e3996 4e72d229 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/08/12 08:53 net-next 7ebfc85e2cd7 402cd70d .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/07/15 12:40 net-next b126047f43f1 5d921b08 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/07/15 04:53 net-next b126047f43f1 5d921b08 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/07/12 18:43 net-next 5022e221c98a d91dd8ea .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/07/05 22:07 net-next ec53d77ae3d5 bff65f44 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/07/04 02:57 net-next d0bf1fe6454e 1434eec0 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/07/03 08:37 net-next 8e60a041e478 1434eec0 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/07/02 23:05 net-next 04740c53cac4 1434eec0 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/06/29 19:57 net-next d640516a65d8 1434eec0 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/06/29 14:07 net-next d521bc0a0f7c 496a8536 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/06/23 09:13 net-next 6dd4142fb5a9 912f5df7 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/06/21 06:39 net-next 4336487e30c3 0fc5c330 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/06/20 16:37 net-next a56b158a5078 8d15e28d .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/06/19 04:30 net-next dbca1596bbb0 8f633d84 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/06/18 18:35 net-next 382f99c442b3 8f633d84 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/06/13 06:02 net-next 27f2533bcc6e 0d5abf15 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-net-kasan-gce 2022/06/09 18:40 net-next 263efe85a4b6 0d5abf15 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-gce-arm64 2022/09/22 11:02 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci aa49f95768a9 60af5050 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-gce-arm64 2022/09/22 09:02 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci aa49f95768a9 60af5050 .config log report info INFO: task hung in rtnetlink_rcv_msg
ci-upstream-kasan-gce-root 2022/09/09 10:56 upstream 506357871c18 f3027468 .config log report info INFO: task hung in __netlink_dump_start
ci-upstream-kasan-gce 2022/07/29 11:47 upstream 6e2c0490769e fef302b1 .config log report info INFO: task hung in ip_rt_ioctl
ci-upstream-kasan-gce-selinux-root 2021/12/15 21:04 upstream 2b14864acbaa 572bcb40 .config log report info INFO: task hung in ipv6_route_ioctl
ci-upstream-kasan-gce 2021/01/07 16:12 upstream 71c061d24438 c104d4a3 .config log report info
ci-qemu-upstream 2019/11/30 13:21 upstream 81b6b96475ac 3a75be00 .config log report
ci-upstream-kasan-gce-386 2022/09/19 17:55 upstream 521a547ced64 dd9a85ff .config log report info INFO: task hung in __netlink_dump_start
ci-upstream-net-this-kasan-gce 2022/07/07 21:14 net 07266d066301 bff65f44 .config log report info INFO: task hung in __netlink_dump_start
ci-upstream-net-this-kasan-gce 2022/06/30 20:36 net 0a18d802d65c 1434eec0 .config log report info INFO: task hung in ip_setsockopt
ci-upstream-net-this-kasan-gce 2022/06/29 04:07 net ab84db251c04 496a8536 .config log report info INFO: task hung in nl80211_pre_doit
ci-upstream-net-this-kasan-gce 2022/06/19 23:21 net 9926de7315be 8f633d84 .config log report info INFO: task hung in __netlink_dump_start
ci-upstream-net-this-kasan-gce 2022/06/06 23:02 net c76acfb7e19d c8857892 .config log report info INFO: task hung in __netlink_dump_start
ci-upstream-net-kasan-gce 2022/06/19 23:05 net-next 9776fe0f424b 8f633d84 .config log report info INFO: task hung in __netlink_dump_start
ci-upstream-net-kasan-gce 2022/06/18 12:19 net-next 382f99c442b3 8f633d84 .config log report info INFO: task hung in __netlink_dump_start
ci-upstream-net-kasan-gce 2022/06/13 21:19 net-next 11a1585f26f7 0d5abf15 .config log report info INFO: task hung in __netlink_dump_start
ci-upstream-linux-next-kasan-gce-root 2021/10/21 08:46 linux-next 51dba6e335ff f111d03b .config log report info INFO: task can't die in dev_deactivate_many
ci-upstream-linux-next-kasan-gce-root 2021/10/21 02:12 linux-next 51dba6e335ff f111d03b .config log report info INFO: task can't die in rtnetlink_rcv_msg
ci-upstream-linux-next-kasan-gce-root 2021/09/20 13:15 linux-next 1f77990c4b79 70b76c1d .config log report info INFO: task can't die in synchronize_rcu_expedited
* Struck through repros no longer work on HEAD.