kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5576 Comm: syz-executor.0 Not tainted 5.2.0-rc2+ #12 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:icmpv6_xrlim_allow+0x256/0x440 net/ipv6/icmp.c:216 Code: d1 01 00 00 4d 8b 2c 24 4d 85 ed 74 51 e8 02 4a 4a fb 49 8d bd 20 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e b2 01 00 00 45 8b ad 20 02 00 RSP: 0018:ffff8880ae909890 EFLAGS: 00010a07 RAX: dffffc0000000000 RBX: 1ffff11015d21314 RCX: ffffffff86265ad6 RDX: 1ff1101162d0f063 RSI: ffffffff86265bbe RDI: ff88808b1687831f RBP: ffff8880ae909950 R08: ffff888096cdc380 R09: 0000000000000008 R10: ffffed1015d26be7 R11: ffff8880ae935f3b R12: ffff8880a576efff R13: ff88808b168780ff R14: 0000000000000001 R15: ffff88808e706140 FS: 00007fbf7dde2700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007effbf571518 CR3: 0000000091a92000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: icmp6_send+0x1107/0x1e50 net/ipv6/icmp.c:540 icmpv6_send+0xec/0x230 net/ipv6/ip6_icmp.c:43 ip6_link_failure+0x2b/0x530 net/ipv6/route.c:2367 dst_link_failure include/net/dst.h:416 [inline] ndisc_error_report+0xce/0x1c0 net/ipv6/ndisc.c:712 neigh_invalidate+0x245/0x570 net/core/neighbour.c:1000 neigh_timer_handler+0xc33/0xf30 net/core/neighbour.c:1086 call_timer_fn+0x193/0x720 kernel/time/timer.c:1322 expire_timers kernel/time/timer.c:1366 [inline] __run_timers kernel/time/timer.c:1685 [inline] __run_timers kernel/time/timer.c:1653 [inline] run_timer_softirq+0x66f/0x1740 kernel/time/timer.c:1698 __do_softirq+0x25c/0x94c kernel/softirq.c:293 invoke_softirq kernel/softirq.c:374 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:414 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1068 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:806 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:767 [inline] RIP: 0010:lock_is_held_type+0x272/0x320 kernel/locking/lockdep.c:4343 Code: ff df c7 83 7c 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 88 00 00 00 48 83 3d 66 b3 5b 07 00 74 31 48 8b 7d c0 57 9d <0f> 1f 44 00 00 48 83 c4 20 44 89 e0 5b 41 5c 41 5d 41 5e 41 5f 5d RSP: 0018:ffff8880a52b7640 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1164e7e RBX: ffff888096cdc380 RCX: ffff888096cdcc00 RDX: dffffc0000000000 RSI: ffffffff88ba3540 RDI: 0000000000000286 RBP: ffff8880a52b7688 R08: ffff888096cdc380 R09: ffffed1015d26be8 R10: ffffed1015d26be7 R11: ffff8880ae935f3b R12: 0000000000000001 R13: ffff888096cdcc78 R14: ffffffff88ba3540 R15: 0000000000000003 lock_is_held include/linux/lockdep.h:356 [inline] rcu_read_lock_held kernel/rcu/update.c:270 [inline] rcu_read_lock_held+0xa3/0xd0 kernel/rcu/update.c:262 xa_entry include/linux/xarray.h:1144 [inline] xas_descend+0x2c9/0x370 lib/xarray.c:203 xas_load+0xef/0x150 lib/xarray.c:239 find_get_entry+0x144/0x770 mm/filemap.c:1506 pagecache_get_page+0x4c/0x850 mm/filemap.c:1608 grab_cache_page_write_begin+0x75/0xb0 mm/filemap.c:3156 ext4_da_write_begin+0x2d7/0xec0 fs/ext4/inode.c:3075 generic_perform_write+0x22a/0x520 mm/filemap.c:3206 __generic_file_write_iter+0x25e/0x630 mm/filemap.c:3335 ext4_file_write_iter+0x332/0x1070 fs/ext4/file.c:266 call_write_iter include/linux/fs.h:1872 [inline] new_sync_write+0x4d3/0x770 fs/read_write.c:483 __vfs_write+0xe1/0x110 fs/read_write.c:496 vfs_write+0x20c/0x580 fs/read_write.c:558 ksys_write+0x14f/0x290 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write fs/read_write.c:620 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:620 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459279 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fbf7dde1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279 RDX: 00000000fffffe5c RSI: 0000000020000080 RDI: 0000000000000008 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbf7dde26d4 R13: 00000000004c8ed3 R14: 00000000004dfb98 R15: 00000000ffffffff Modules linked in: ---[ end trace 4abe394412af75c5 ]--- RIP: 0010:icmpv6_xrlim_allow+0x256/0x440 net/ipv6/icmp.c:216 Code: d1 01 00 00 4d 8b 2c 24 4d 85 ed 74 51 e8 02 4a 4a fb 49 8d bd 20 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e b2 01 00 00 45 8b ad 20 02 00 RSP: 0018:ffff8880ae909890 EFLAGS: 00010a07 RAX: dffffc0000000000 RBX: 1ffff11015d21314 RCX: ffffffff86265ad6 RDX: 1ff1101162d0f063 RSI: ffffffff86265bbe RDI: ff88808b1687831f RBP: ffff8880ae909950 R08: ffff888096cdc380 R09: 0000000000000008 R10: ffffed1015d26be7 R11: ffff8880ae935f3b R12: ffff8880a576efff R13: ff88808b168780ff R14: 0000000000000001 R15: ffff88808e706140 FS: 00007fbf7dde2700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007effbf571518 CR3: 0000000091a92000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600