IPv6: ADDRCONF(NETDEV_UP): vlan716: link is not ready netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.3:3744] Modules linked in: irq event stamp: 1790533 hardirqs last enabled at (1790532): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (1790533): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (15700): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (17597): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (17597): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 3744 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa3/0xe0 kernel/locking/spinlock.c:184 Code: 48 c7 c0 88 82 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 2f 48 83 3d 7c 31 d8 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 fb eb e6 f8 eb c0 0f 0b 0f 0b 48 c7 c7 88 RSP: 0018:ffff8880ba007c28 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3051 RBX: 0000000000000286 RCX: 1ffff11015da29ca RDX: dffffc0000000000 RSI: ffff8880aed14e30 RDI: 0000000000000286 RBP: ffff8880ba022b40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000022b40 R14: 0000000000000000 R15: ffff8880ba022b40 FS: 00005555560fe400(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000004 CR3: 0000000051a16000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __mod_timer kernel/time/timer.c:1071 [inline] mod_timer+0x4ea/0x1010 kernel/time/timer.c:1114 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __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:536 [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:clac kernel/futex.c:799 [inline] RIP: 0010:get_futex_value_locked+0x52/0xf0 kernel/futex.c:799 Code: 00 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e a6 00 00 00 83 83 b8 13 00 00 01 0f 01 cb 0f ae e8 31 db 8b 6d 00 <0f> 01 ca 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 0f b6 RSP: 0018:ffff888038c67978 EFLAGS: 00040246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff814bdebb RDX: 1ffff11015da2b27 RSI: ffffffff8157af1f RDI: ffff8880aed15938 RBP: 0000000000000000 R08: 0000000000000001 R09: fffff5200018e5f1 R10: ffffc90000c72f8b R11: 0000000000000000 R12: ffff888038c679f0 R13: ffffc90000c72f80 R14: ffff888038c67b80 R15: ffff888038c679f0 futex_wait_setup+0x170/0x300 kernel/futex.c:2776 futex_wait+0x1c5/0x610 kernel/futex.c:2832 do_futex+0x268/0x1880 kernel/futex.c:3889 __do_sys_futex kernel/futex.c:3950 [inline] __se_sys_futex+0x28f/0x3b0 kernel/futex.c:3918 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f4e5a288ae9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd6ac94c58 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 0000000000000032 RCX: 00007f4e5a288ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4e5a39bf6c RBP: 00007f4e5a39bf6c R08: 000000744fcfd1e8 R09: 0000000000000000 R10: 00007ffd6ac94d30 R11: 0000000000000246 R12: 000000000006dfaf R13: 00000000000003e8 R14: 00007f4e5a39bf60 R15: 000000000006df9f Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 8115 Comm: syz-fuzzer Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 kernel/kcov.c:100 Code: e8 11 dd 35 00 e9 ab fe ff ff 4c 89 ef e8 04 dd 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 <65> 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 RSP: 0018:ffff8880ba107c30 EFLAGS: 00000202 RAX: 0000000080000101 RBX: ffff888052fb1f00 RCX: ffffffff8375876b RDX: 0000000000000001 RSI: ffffffff83758781 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8880931b4d00 R14: 0000000000000001 R15: ffff88809ecdca5a FS: 000000c00002e890(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00063aebc CR3: 0000000098828000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lockdep_rht_mutex_is_held lib/rhashtable.c:53 [inline] lockdep_rht_mutex_is_held+0x61/0x90 lib/rhashtable.c:51 __rhashtable_lookup include/linux/rhashtable.h:478 [inline] rhltable_lookup include/linux/rhashtable.h:566 [inline] sta_info_hash_lookup+0x5a4/0x710 net/mac80211/sta_info.c:163 sta_info_get_bss+0xb1/0x340 net/mac80211/sta_info.c:200 __ieee80211_rx_handle_packet net/mac80211/rx.c:4542 [inline] ieee80211_rx_napi+0x106d/0x2470 net/mac80211/rx.c:4672 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 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1092 do_softirq.part.0+0x160/0x1c0 kernel/softirq.c:336 do_softirq kernel/softirq.c:328 [inline] __local_bh_enable_ip+0x20e/0x270 kernel/softirq.c:189 lock_sock include/net/sock.h:1512 [inline] tcp_sendmsg+0x1d/0x40 net/ipv4/tcp.c:1461 inet_sendmsg+0x132/0x5a0 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 sock_write_iter+0x287/0x3c0 net/socket.c:966 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x51b/0x770 fs/read_write.c:487 vfs_write+0x1f3/0x540 fs/read_write.c:549 ksys_write+0x12b/0x2a0 fs/read_write.c:599 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4b129b Code: fb ff eb bd e8 46 96 fb ff e9 61 ff ff ff cc e8 3b 62 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 RSP: 002b:000000c0002ed2e8 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004b129b RDX: 0000000000000019 RSI: 000000c00000a200 RDI: 0000000000000006 RBP: 000000c0002ed338 R08: 000000c0002ed301 R09: 0000000000000004 R10: 000000c00000a1e0 R11: 0000000000000212 R12: 000000000000011e R13: 000000c0004dc000 R14: 000000000000000f R15: 0000000000003c24 ---------------- Code disassembly (best guess): 0: 48 c7 c0 88 82 f1 89 mov $0xffffffff89f18288,%rax 7: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx e: fc ff df 11: 48 c1 e8 03 shr $0x3,%rax 15: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) 19: 75 2f jne 0x4a 1b: 48 83 3d 7c 31 d8 01 cmpq $0x0,0x1d8317c(%rip) # 0x1d8319f 22: 00 23: 74 15 je 0x3a 25: 48 89 df mov %rbx,%rdi 28: 57 push %rdi 29: 9d popfq * 2a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) <-- trapping instruction 2f: eb b2 jmp 0xffffffe3 31: e8 fb eb e6 f8 callq 0xf8e6ec31 36: eb c0 jmp 0xfffffff8 38: 0f 0b ud2 3a: 0f 0b ud2 3c: 48 rex.W 3d: c7 .byte 0xc7 3e: c7 (bad) 3f: 88 .byte 0x88