IPv6: ADDRCONF(NETDEV_UP): vlan189: link is not ready IPv6: ADDRCONF(NETDEV_UP): vlan186: link is not ready watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.1:4243] Modules linked in: irq event stamp: 3046627 hardirqs last enabled at (3046626): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3046627): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (77048): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (77535): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (77535): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 4243 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kernel_text_address+0x0/0xf0 kernel/extable.c:123 Code: ce 66 0f 1f 84 00 00 00 00 00 31 c0 48 81 ff 00 00 e0 89 72 0c 31 c0 48 81 ff 80 d4 28 8b 0f 92 c0 c3 0f 1f 84 00 00 00 00 00 <55> 48 89 fd 48 83 ec 08 48 81 ff 00 00 00 81 72 09 48 81 ff 00 70 RSP: 0018:ffff8880ba007878 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffffffff86891a4d RCX: 0000000000000000 RDX: 1ffff11017400f20 RSI: ffff8880ba007718 RDI: ffffffff86891a4d RBP: ffff8880ba007900 R08: 0000000000000001 R09: 0000000000000001 R10: ffff8880ba007917 R11: 0000000000074071 R12: ffff8880ba007950 R13: 0000000000000000 R14: ffff8880b5b8fd80 R15: 00000000000000e8 FS: 0000555556045400(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff570d8fe8 CR3: 000000009b7ea000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __kernel_text_address+0x9/0x30 kernel/extable.c:107 unwind_get_return_address arch/x86/kernel/unwind_orc.c:297 [inline] unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:292 __save_stack_trace+0xaf/0x190 arch/x86/kernel/stacktrace.c:45 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc_node mm/slab.c:3340 [inline] kmem_cache_alloc_node+0x133/0x3b0 mm/slab.c:3647 __alloc_skb+0x71/0x560 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:995 [inline] mrp_pdu_init net/802/mrp.c:316 [inline] mrp_pdu_append_vecattr_event+0x7d2/0x1050 net/802/mrp.c:415 mrp_attr_event+0x15d/0x220 net/802/mrp.c:510 mrp_mad_event net/802/mrp.c:590 [inline] mrp_join_timer+0x5a/0xc0 net/802/mrp.c:607 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:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:lock_acquire+0x1ec/0x3c0 kernel/locking/lockdep.c:3911 Code: 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 b7 01 00 00 48 83 3d 09 2e a6 08 00 0f 84 2a 01 00 00 48 8b 7c 24 08 57 9d <0f> 1f 44 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 65 8b RSP: 0018:ffff88803a42f920 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3051 RBX: ffff8880aa700440 RCX: 4a8c8edebcbc77bf RDX: dffffc0000000000 RSI: 0000000059a465cc RDI: 0000000000000286 RBP: ffffffff89f85fa0 R08: 000000009b89e90e R09: 0000000000000001 R10: ffff8880aa700cf0 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:242 [inline] rcu_read_lock include/linux/rcupdate.h:627 [inline] lock_page_memcg+0x36/0x220 mm/memcontrol.c:1908 page_remove_file_rmap+0x36/0xa30 mm/rmap.c:1212 page_remove_rmap+0xe5/0x120 mm/rmap.c:1297 zap_pte_range mm/memory.c:1350 [inline] zap_pmd_range mm/memory.c:1463 [inline] zap_pud_range mm/memory.c:1492 [inline] zap_p4d_range mm/memory.c:1513 [inline] unmap_page_range+0x147d/0x2c50 mm/memory.c:1534 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1016 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1037 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 __do_sys_exit_group kernel/exit.c:978 [inline] __se_sys_exit_group kernel/exit.c:976 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:976 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7ff26c24a059 Code: Bad RIP value. RSP: 002b:00007ffe788c7668 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007ff26c24a059 RDX: 00007ff26c1fcc9b RSI: ffffffffffffffb8 RDI: 0000000000000000 RBP: 0000000000000000 R08: 00007ff26c363b28 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffe788c7750 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4303 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:check_preemption_disabled+0x3c/0x280 lib/smp_processor_id.c:51 Code: 67 eb fd 65 44 8b 25 23 63 8a 7c 65 8b 1d 3c c1 8a 7c 81 e3 ff ff ff 7f 31 ff 89 de e8 bd 68 eb fd 85 db 74 18 e8 44 67 eb fd 3f 67 eb fd 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 2c 67 RSP: 0000:ffff8880ba1075a8 EFLAGS: 00000006 RAX: ffff88803a19c300 RBX: 0000000000010104 RCX: ffffffff83771e23 RDX: 0000000000010100 RSI: ffffffff83771e2c RDI: 0000000000000005 RBP: ffffffff88b3e120 R08: ffffffff8c665058 R09: 0000000000000000 R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000001 R13: ffffffff88b3e0e0 R14: 0000000000000000 R15: 0000000000000000 FS: 000055555726c400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fba58e7da58 CR3: 000000004b7eb000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:348 [inline] rcu_is_watching+0x12/0xc0 kernel/rcu/tree.c:1025 rcu_read_lock_sched_held+0xc6/0x1d0 kernel/rcu/update.c:113 trace_local_timer_entry arch/x86/include/asm/trace/irq_vectors.h:56 [inline] smp_apic_timer_interrupt+0x3fb/0x550 arch/x86/kernel/apic/apic.c:1095 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:unwind_next_frame+0x507/0x1400 arch/x86/kernel/unwind_orc.c:435 Code: 0b 00 00 41 c7 06 00 00 00 00 31 c0 e9 a4 fb ff ff 48 ba 00 00 00 00 00 fc ff df 4c 89 c6 49 8d 48 01 48 c1 ee 03 0f b6 34 16 <48> 89 cf 48 89 4c 24 20 48 c1 ef 03 0f b6 14 17 4c 89 c7 83 e7 07 RSP: 0000:ffff8880ba107708 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000015 RBX: 1ffff11017420eea RCX: ffffffff8c092621 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8b833114 RBP: 0000000000000002 R08: ffffffff8c092620 R09: ffffffff8c092610 R10: ffff8880ba107897 R11: 0000000000074071 R12: ffff8880ba107880 R13: ffff8880ba10786d R14: ffff8880ba107838 R15: ffffffff8c09261c __save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 kmem_cache_alloc_node_trace+0x151/0x3b0 mm/slab.c:3668 __do_kmalloc_node mm/slab.c:3688 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3703 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0xae/0x560 net/core/skbuff.c:205 __netdev_alloc_skb+0x76/0x460 net/core/skbuff.c:407 netdev_alloc_skb include/linux/skbuff.h:2680 [inline] dev_alloc_skb include/linux/skbuff.h:2693 [inline] __ieee80211_beacon_get+0xc7d/0x1a30 net/mac80211/tx.c:4352 ieee80211_beacon_get_tim+0x88/0x890 net/mac80211/tx.c:4463 ieee80211_beacon_get include/net/mac80211.h:4484 [inline] mac80211_hwsim_beacon_tx+0xff/0x680 drivers/net/wireless/mac80211_hwsim.c:1577 __iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650 mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615 __tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601 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: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:alloc_set_pte+0x94f/0x1a00 mm/memory.c:3631 Code: 03 00 4c 8d 43 18 4c 89 04 24 e8 6c 59 d6 ff 48 8b 54 24 10 48 b8 00 00 00 00 00 fc ff df 4c 8b 04 24 48 c1 ea 03 80 3c 02 00 <0f> 85 0f 0d 00 00 4c 89 c2 4c 8b 7b 50 48 b8 00 00 00 00 00 fc ff RSP: 0000:ffff88803678fb40 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffff88803678fd48 RCX: 1ffff11007433980 RDX: 1ffff11006cf1fb3 RSI: ffffffff818c2c04 RDI: 0000000000000286 RBP: ffffea000230ef40 R08: ffff88803678fd60 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000000 R12: 800000008c3bd025 R13: ffff88809b003040 R14: ffff88809b003080 R15: 0000000000000000 filemap_map_pages+0xd66/0x11c0 mm/filemap.c:2700 do_fault_around mm/memory.c:3776 [inline] do_read_fault mm/memory.c:3810 [inline] do_fault mm/memory.c:3944 [inline] handle_pte_fault mm/memory.c:4175 [inline] __handle_mm_fault+0x2a8e/0x41c0 mm/memory.c:4299 handle_mm_fault+0x436/0xb10 mm/memory.c:4336 __do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0033:0x7fba58ddb70a Code: 0a 01 48 89 44 24 30 48 8b 44 24 10 48 8d 1d 2d f7 0e 00 b9 07 00 00 00 48 8d 3d f4 e7 0a 00 48 c1 e0 06 48 8b 04 03 48 89 c6 a6 0f 97 c1 80 d9 00 84 c9 75 1c 48 69 0d 57 0c 0a 01 f4 01 00 RSP: 002b:00007ffea29a75b0 EFLAGS: 00010202 RAX: 00007fba58e7da58 RBX: 00007fba58ecae20 RCX: 0000000000000007 RDX: 00007fba58f48eb8 RSI: 00007fba58e7da58 RDI: 00007fba58e89ef3 RBP: 00007ffea29a7668 R08: 00007fba59347000 R09: 00007fba58f48ec0 R10: 00007fba58f48e88 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000004 R14: 00007fba58f42f60 R15: 0000000000000032 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 7: 00 00 9: 31 c0 xor %eax,%eax b: 48 81 ff 00 00 e0 89 cmp $0xffffffff89e00000,%rdi 12: 72 0c jb 0x20 14: 31 c0 xor %eax,%eax 16: 48 81 ff 80 d4 28 8b cmp $0xffffffff8b28d480,%rdi 1d: 0f 92 c0 setb %al 20: c3 retq 21: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 28: 00 * 29: 55 push %rbp <-- trapping instruction 2a: 48 89 fd mov %rdi,%rbp 2d: 48 83 ec 08 sub $0x8,%rsp 31: 48 81 ff 00 00 00 81 cmp $0xffffffff81000000,%rdi 38: 72 09 jb 0x43 3a: 48 rex.W 3b: 81 .byte 0x81 3c: ff 00 incl (%rax) 3e: 70 .byte 0x70