Warning: Permanently added '10.128.0.158' (ECDSA) to the list of known hosts.
2020/12/16 16:22:41 fuzzer started
syzkaller login: [   56.198426][ T8484] ================================================================================
[   56.208191][ T8484] UBSAN: invalid-load in kernel/params.c:302:33
[   56.215245][ T8484] load of value 255 is not a valid value for type '_Bool'
[   56.222584][ T8484] CPU: 1 PID: 8484 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0
[   56.230635][ T8484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   56.240674][ T8484] Call Trace:
[   56.243979][ T8484]  dump_stack+0x107/0x163
[   56.248297][ T8484]  ubsan_epilogue+0xb/0x5a
[   56.252693][ T8484]  __ubsan_handle_load_invalid_value.cold+0x62/0x6c
[   56.259271][ T8484]  param_get_bool.cold+0x14/0x19
[   56.264362][ T8484]  param_attr_show+0x14a/0x220
[   56.269296][ T8484]  ? kernel_param_unlock+0x40/0x40
[   56.274390][ T8484]  module_attr_show+0x48/0x70
[   56.279059][ T8484]  ? func_ptr_is_kernel_text+0x80/0x80
[   56.284503][ T8484]  sysfs_kf_seq_show+0x1f8/0x400
[   56.289425][ T8484]  seq_read_iter+0x4d3/0x1220
[   56.294304][ T8484]  seq_read+0x3dd/0x5b0
[   56.298444][ T8484]  ? seq_read_iter+0x1220/0x1220
[   56.303364][ T8484]  ? lock_downgrade+0x6d0/0x6d0
[   56.308375][ T8484]  ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[   56.314612][ T8484]  kernfs_fop_read+0xe9/0x590
[   56.319273][ T8484]  ? rw_verify_area+0x11d/0x350
[   56.324096][ T8484]  ? kernfs_vma_page_mkwrite+0x230/0x230
[   56.329715][ T8484]  vfs_read+0x1b5/0x570
[   56.333982][ T8484]  ksys_read+0x12d/0x250
[   56.338220][ T8484]  ? vfs_write+0xa80/0xa80
[   56.342619][ T8484]  ? syscall_enter_from_user_mode+0x1d/0x50
[   56.348503][ T8484]  do_syscall_64+0x2d/0x70
[   56.352898][ T8484]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   56.358998][ T8484] RIP: 0033:0x4b3d8b
[   56.362882][ T8484] Code: ff e9 69 ff ff ff cc cc cc cc cc cc cc cc cc e8 db a1 f8 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
[   56.382482][ T8484] RSP: 002b:000000c000139740 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   56.390896][ T8484] RAX: ffffffffffffffda RBX: 000000c00002e800 RCX: 00000000004b3d8b
[   56.398850][ T8484] RDX: 0000000000001200 RSI: 000000c0004b7300 RDI: 0000000000000006
[   56.406986][ T8484] RBP: 000000c000139790 R08: 0000000000000001 R09: 0000000000000002
[   56.414935][ T8484] R10: 0000000000001200 R11: 0000000000000202 R12: ffffffffffffffff
[   56.422878][ T8484] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000005
[   56.432339][ T8484] ================================================================================
[   56.441654][ T8484] Kernel panic - not syncing: panic_on_warn set ...
[   56.448219][ T8484] CPU: 1 PID: 8484 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0
[   56.456452][ T8484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   56.466552][ T8484] Call Trace:
[   56.469819][ T8484]  dump_stack+0x107/0x163
[   56.474145][ T8484]  panic+0x343/0x77f
[   56.478015][ T8484]  ? __warn_printk+0xf3/0xf3
[   56.482585][ T8484]  ? ubsan_epilogue+0x3e/0x5a
[   56.487238][ T8484]  ubsan_epilogue+0x54/0x5a
[   56.491716][ T8484]  __ubsan_handle_load_invalid_value.cold+0x62/0x6c
[   56.498351][ T8484]  param_get_bool.cold+0x14/0x19
[   56.503268][ T8484]  param_attr_show+0x14a/0x220
[   56.508342][ T8484]  ? kernel_param_unlock+0x40/0x40
[   56.513441][ T8484]  module_attr_show+0x48/0x70
[   56.518763][ T8484]  ? func_ptr_is_kernel_text+0x80/0x80
[   56.524201][ T8484]  sysfs_kf_seq_show+0x1f8/0x400
[   56.529120][ T8484]  seq_read_iter+0x4d3/0x1220
[   56.533778][ T8484]  seq_read+0x3dd/0x5b0
[   56.537980][ T8484]  ? seq_read_iter+0x1220/0x1220
[   56.542897][ T8484]  ? lock_downgrade+0x6d0/0x6d0
[   56.547814][ T8484]  ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[   56.554381][ T8484]  kernfs_fop_read+0xe9/0x590
[   56.559385][ T8484]  ? rw_verify_area+0x11d/0x350
[   56.564931][ T8484]  ? kernfs_vma_page_mkwrite+0x230/0x230
[   56.570925][ T8484]  vfs_read+0x1b5/0x570
[   56.575058][ T8484]  ksys_read+0x12d/0x250
[   56.579274][ T8484]  ? vfs_write+0xa80/0xa80
[   56.583667][ T8484]  ? syscall_enter_from_user_mode+0x1d/0x50
[   56.589745][ T8484]  do_syscall_64+0x2d/0x70
[   56.594249][ T8484]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   56.600220][ T8484] RIP: 0033:0x4b3d8b
[   56.604101][ T8484] Code: ff e9 69 ff ff ff cc cc cc cc cc cc cc cc cc e8 db a1 f8 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
[   56.624513][ T8484] RSP: 002b:000000c000139740 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   56.633346][ T8484] RAX: ffffffffffffffda RBX: 000000c00002e800 RCX: 00000000004b3d8b
[   56.641471][ T8484] RDX: 0000000000001200 RSI: 000000c0004b7300 RDI: 0000000000000006
[   56.649539][ T8484] RBP: 000000c000139790 R08: 0000000000000001 R09: 0000000000000002
[   56.657661][ T8484] R10: 0000000000001200 R11: 0000000000000202 R12: ffffffffffffffff
[   56.666059][ T8484] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000005
[   56.679785][ T8484] Kernel Offset: disabled
[   56.684284][ T8484] Rebooting in 86400 seconds..