Invalid option length (1048522) for dns_resolver key ptrace attach of "/root/syz-executor.3"[17007] was attempted by "/root/syz-executor.3"[17011] IPVS: ftp: loaded support on port[0] = 21 watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.2:16880] Modules linked in: irq event stamp: 2736299 hardirqs last enabled at (2736298): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (2736299): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (2727698): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (2727701): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2727701): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 16880 Comm: syz-executor.2 Not tainted 4.19.192-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:pskb_may_pull include/linux/skbuff.h:2179 [inline] RIP: 0010:ieee80211_rx_monitor net/mac80211/rx.c:759 [inline] RIP: 0010:ieee80211_rx_napi+0x60e/0x2470 net/mac80211/rx.c:4581 Code: 84 c9 0f 85 91 1c 00 00 41 8b 87 84 00 00 00 44 89 e1 44 89 ef 29 c1 89 44 24 50 89 ce 89 4c 24 08 e8 96 9f c2 f9 8b 44 24 08 <41> 39 c5 0f 87 a7 16 00 00 e8 94 9e c2 f9 41 89 dc 31 ff 41 81 e4 RSP: 0018:ffff8880ba107d00 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 000000000000004c RBX: 0000000000000080 RCX: ffffffff879fda8a RDX: 000000000000004c RSI: ffff888098f5c240 RDI: 0000000000000004 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000004 R11: 0000000000000000 R12: 000000000000004c R13: 0000000000000002 R14: ffff88804dad1a20 R15: ffff8880af524640 FS: 00007f097afe6700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000292e848 CR3: 0000000009e6d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_rx include/net/mac80211.h:4109 [inline] ieee80211_tasklet_handler+0x101/0x160 net/mac80211/main.c:229 tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:535 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:bytes_is_nonzero mm/kasan/kasan.c:166 [inline] RIP: 0010:memory_is_nonzero mm/kasan/kasan.c:184 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/kasan.c:210 [inline] RIP: 0010:memory_is_poisoned mm/kasan/kasan.c:241 [inline] RIP: 0010:check_memory_region_inline mm/kasan/kasan.c:257 [inline] RIP: 0010:check_memory_region+0xba/0x170 mm/kasan/kasan.c:267 Code: 00 74 f1 48 8d 50 08 eb 09 48 83 c0 01 48 39 d0 74 0e 80 38 00 74 f2 48 85 c0 0f 85 9c 00 00 00 5b 5d 41 5c c3 48 85 d2 74 f6 <48> 01 ea eb 09 48 83 c0 01 48 39 d0 74 e8 80 38 00 74 f2 eb d8 41 RSP: 0018:ffff8880943376f0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: ffffed1017424552 RBX: ffffed1017424553 RCX: ffffffff81518403 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8880ba122a90 RBP: ffffed1017424552 R08: 0000000000000000 R09: ffffed1017424552 R10: ffff8880ba122a93 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: dead000000000100 R15: 00007f097c786000 atomic_read include/asm-generic/atomic-instrumented.h:21 [inline] rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:350 [inline] rcu_is_watching+0x53/0xc0 kernel/rcu/tree.c:1025 rcu_read_unlock include/linux/rcupdate.h:677 [inline] __unlock_page_memcg+0x72/0x100 mm/memcontrol.c:1955 page_remove_rmap+0xe5/0x120 mm/rmap.c:1300 zap_pte_range mm/memory.c:1350 [inline] zap_pmd_range mm/memory.c:1452 [inline] zap_pud_range mm/memory.c:1481 [inline] zap_p4d_range mm/memory.c:1502 [inline] unmap_page_range+0x12f6/0x2a70 mm/memory.c:1523 unmap_single_vma+0x198/0x300 mm/memory.c:1568 unmap_vmas+0xa9/0x180 mm/memory.c:1598 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1015 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1036 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665d9 Code: Bad RIP value. RSP: 002b:00007f097afe6188 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: fffffffffffffff4 RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 9999999999999999 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00000000004bfcb9 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fff384fa56f R14: 00007f097afe6300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 38 Comm: kworker/u4:2 Not tainted 4.19.192-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: krdsd rds_connect_worker RIP: 0010:check_kcov_mode kernel/kcov.c:67 [inline] RIP: 0010:write_comp_data+0x16/0x70 kernel/kcov.c:122 Code: 39 d0 76 07 48 89 34 d1 48 89 11 c3 0f 1f 84 00 00 00 00 00 49 89 f1 49 89 fa 65 48 8b 34 25 80 df 01 00 65 8b 05 7a 65 9f 7e 00 01 1f 00 75 4f 8b 86 60 13 00 00 83 f8 03 75 44 48 8b 86 68 RSP: 0018:ffff8880b5157838 EFLAGS: 00000046 RAX: 0000000080000403 RBX: 0000000000000403 RCX: ffffffff8376f7d3 RDX: 0000000000000403 RSI: ffff8880b5144300 RDI: 0000000000000005 RBP: ffffffff88b3db00 R08: 0000000000000002 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff88b3dac0 R14: 0000000000000002 R15: ffff8880b5157938 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e5f63a35e0 CR3: 00000000b4d94000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: check_preemption_disabled+0x33/0x280 lib/smp_processor_id.c:15 perf_trace_lock_acquire+0xef/0x530 include/trace/events/lock.h:13 trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0x298/0x3c0 kernel/locking/lockdep.c:3907 __raw_read_lock_bh include/linux/rwlock_api_smp.h:176 [inline] _raw_read_lock_bh+0x32/0x40 kernel/locking/spinlock.c:240 sock_i_uid+0x1b/0xa0 net/core/sock.c:1917 inet_csk_bind_conflict+0x95/0x550 net/ipv4/inet_connection_sock.c:144 inet_csk_find_open_port net/ipv4/inet_connection_sock.c:228 [inline] inet_csk_get_port+0xa86/0xf30 net/ipv4/inet_connection_sock.c:353 __inet_bind+0x5b0/0xbc0 net/ipv4/af_inet.c:524 inet_bind+0xf3/0x160 net/ipv4/af_inet.c:453 rds_tcp_conn_path_connect+0x532/0x880 net/rds/tcp_connect.c:144 rds_connect_worker+0x194/0x2b0 net/rds/threads.c:175 process_one_work+0x864/0x1570 kernel/workqueue.c:2152 worker_thread+0x64c/0x1130 kernel/workqueue.c:2295 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415