EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.2:13332] Modules linked in: irq event stamp: 3170735 hardirqs last enabled at (3170734): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3170735): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (2762): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (2765): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2765): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 13332 Comm: syz-executor.2 Not tainted 4.19.206-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ieee802154 phy0 wpan0: encryption failed: -22 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 c8 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 fc 5e d8 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 3b 19 e7 f8 eb c0 0f 0b 0f 0b 48 c7 c7 c8 RSP: 0018:ffff8880ba007c28 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 ieee802154 phy1 wpan1: encryption failed: -22 RAX: 1ffffffff13e3059 RBX: 0000000000000286 RCX: 1ffff1102e5c1924 RDX: dffffc0000000000 RSI: ffff888172e0c900 RDI: 0000000000000286 RBP: ffff8880ba022b40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000022b40 R14: 0000000000000000 R15: ffff8880ba022b40 FS: 00007f73b42c0700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 EXT4-fs error (device loop1): ext4_map_blocks:613: inode #17: block 62218: comm syz-executor.1: lblock 0 mapped to illegal pblock 62218 (length 1) CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdaf458d27 CR3: 000000019950e000 CR4: 00000000001426f0 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:preempt_schedule_irq+0xa6/0x140 kernel/sched/core.c:3744 Code: 00 00 e8 2d 42 29 f9 e8 38 7c 4f f9 4c 89 e8 48 c1 e8 03 80 3c 18 00 75 69 48 83 3d 6b 48 d9 01 00 74 5b fb 66 0f 1f 44 00 00 01 00 00 00 e8 40 d1 ff ff 48 c7 c0 d0 82 f1 89 48 c1 e8 03 80 RSP: 0018:ffff8881675872d0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e305b RBX: dffffc0000000000 RCX: 1ffff1102e5c1915 RDX: 0000000000000000 RSI: ffff888172e0c8d8 RDI: ffff888172e0c884 RBP: ffffed102e5c1800 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888172e0c000 R13: ffffffff89f182d8 R14: 0000000000000000 R15: 0000000000000000 retint_kernel+0x1b/0x2d RIP: 0010:__read_once_size include/linux/compiler.h:261 [inline] RIP: 0010:__in6_dev_get include/net/addrconf.h:340 [inline] RIP: 0010:fib6_ignore_linkdown net/ipv6/route.c:655 [inline] RIP: 0010:find_match.part.0+0x84/0x1530 net/ipv6/route.c:673 Code: 4d 85 f6 0f 84 1c 01 00 00 e8 b8 2b 5b fa 49 8d be 40 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 30 12 00 00 4d 8b b6 40 03 00 00 e8 1a 45 49 fa 31 ff 89 c6 RSP: 0018:ffff8881675873a0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffff88809e27c180 RCX: ffffc9000a05c000 RDX: 1ffff1100a8ae580 RSI: ffffffff87076708 RDI: ffff888054572c00 RBP: ffff888167587448 R08: 0000000000000000 R09: ffff888167587510 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000003 R13: 0000000000000001 R14: ffff8880545728c0 R15: dffffc0000000000 find_match net/ipv6/route.c:670 [inline] find_rr_leaf net/ipv6/route.c:719 [inline] rt6_select net/ipv6/route.c:769 [inline] fib6_table_lookup+0x4c2/0xf40 net/ipv6/route.c:1876 ip6_pol_route+0x180/0x1270 net/ipv6/route.c:1909 __fib6_rule_action net/ipv6/fib6_rules.c:233 [inline] fib6_rule_action+0x35f/0x9f0 net/ipv6/fib6_rules.c:264 fib_rules_lookup+0x393/0xbf0 net/core/fib_rules.c:304 fib6_rule_lookup+0x2fa/0x4e0 net/ipv6/fib6_rules.c:110 ip6_route_output_flags+0x2b0/0x350 net/ipv6/route.c:2163 ip6_route_output include/net/ip6_route.h:88 [inline] ip6_dst_lookup_tail+0x104d/0x19b0 net/ipv6/ip6_output.c:992 ip6_dst_lookup_flow+0x8c/0x1d0 net/ipv6/ip6_output.c:1120 ip6_datagram_dst_update+0x5ca/0xc10 net/ipv6/datagram.c:92 __ip6_datagram_connect+0x98e/0x1530 net/ipv6/datagram.c:251 ip6_datagram_connect+0x2b/0x40 net/ipv6/datagram.c:275 inet_dgram_connect+0x14a/0x2d0 net/ipv4/af_inet.c:571 __sys_connect+0x265/0x2c0 net/socket.c:1775 __do_sys_connect net/socket.c:1786 [inline] __se_sys_connect net/socket.c:1783 [inline] __x64_sys_connect+0x6f/0xb0 net/socket.c:1783 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 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:00007f73b42c0188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 000000000000001c RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc0a4b624f R14: 00007f73b42c0300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 17814 Comm: kworker/u4:6 Not tainted 4.19.206-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: writeback wb_workfn (flush-8:0) RIP: 0010:__read_once_size include/linux/compiler.h:261 [inline] RIP: 0010:csd_lock_wait kernel/smp.c:108 [inline] RIP: 0010:smp_call_function_single+0x1db/0x420 kernel/smp.c:302 Code: 00 e8 a9 03 0a 00 48 8b 4c 24 08 48 8b 54 24 10 48 8d 74 24 40 8b 7c 24 1c e8 a1 f9 ff ff 41 89 c5 eb 07 e8 87 03 0a 00 f3 90 <44> 8b 64 24 58 31 ff 41 83 e4 01 44 89 e6 e8 e2 04 0a 00 45 85 e4 RSP: 0018:ffff8882284a6ce0 EFLAGS: 00000293 RAX: ffff8880b31c60c0 RBX: 1ffff11045094da0 RCX: ffffffff81588f4e RDX: 0000000000000000 RSI: ffffffff81588f39 RDI: 0000000000000005 RBP: ffff8882284a6da8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0a19a17000 CR3: 000000009ce7d000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: smp_call_function_many+0x743/0x8d0 kernel/smp.c:434 flush_tlb_others arch/x86/include/asm/paravirt.h:309 [inline] flush_tlb_mm_range+0x179/0x320 arch/x86/mm/tlb.c:728 flush_tlb_page arch/x86/include/asm/tlbflush.h:576 [inline] ptep_clear_flush+0x123/0x160 mm/pgtable-generic.c:87 page_mkclean_one+0x425/0x860 mm/rmap.c:912 rmap_walk_file+0x539/0xb10 mm/rmap.c:1897 rmap_walk+0x105/0x190 mm/rmap.c:1915 page_mkclean+0x20f/0x2b0 mm/rmap.c:981 clear_page_dirty_for_io+0x305/0xee0 mm/page-writeback.c:2687 mpage_submit_page+0x80/0x250 fs/ext4/inode.c:2215 mpage_process_page_bufs+0x534/0x630 fs/ext4/inode.c:2345 mpage_prepare_extent_to_map+0x9a2/0xf10 fs/ext4/inode.c:2707 ext4_writepages+0x111d/0x37f0 fs/ext4/inode.c:2835 do_writepages+0xe5/0x290 mm/page-writeback.c:2344 __writeback_single_inode+0x10c/0x11d0 fs/fs-writeback.c:1385 writeback_sb_inodes+0x537/0xef0 fs/fs-writeback.c:1647 __writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1716 wb_writeback+0x841/0xcc0 fs/fs-writeback.c:1822 wb_check_old_data_flush fs/fs-writeback.c:1924 [inline] wb_do_writeback fs/fs-writeback.c:1977 [inline] wb_workfn+0x8ba/0x1250 fs/fs-writeback.c:2006 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 ---------------- Code disassembly (best guess): 0: 48 c7 c0 c8 82 f1 89 mov $0xffffffff89f182c8,%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 fc 5e d8 01 cmpq $0x0,0x1d85efc(%rip) # 0x1d85f1f 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 3b 19 e7 f8 callq 0xf8e71971 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: c8 .byte 0xc8