Warning: Permanently added '10.128.0.135' (ECDSA) to the list of known hosts.
2020/12/27 11:27:53 fuzzer started
syzkaller login: [   54.190951][ T8437] ================================================================================
[   54.200955][ T8437] UBSAN: invalid-load in kernel/params.c:302:33
[   54.208359][ T8437] load of value 255 is not a valid value for type '_Bool'
[   54.215774][ T8437] CPU: 0 PID: 8437 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0
[   54.223738][ T8437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.233941][ T8437] Call Trace:
[   54.237201][ T8437]  dump_stack+0x107/0x163
[   54.241528][ T8437]  ubsan_epilogue+0xb/0x5a
[   54.245922][ T8437]  __ubsan_handle_load_invalid_value.cold+0x62/0x6c
[   54.252684][ T8437]  param_get_bool.cold+0x14/0x19
[   54.257603][ T8437]  param_attr_show+0x14a/0x220
[   54.262346][ T8437]  ? kernel_param_unlock+0x40/0x40
[   54.267439][ T8437]  module_attr_show+0x48/0x70
[   54.272095][ T8437]  ? func_ptr_is_kernel_text+0x80/0x80
[   54.277533][ T8437]  sysfs_kf_seq_show+0x1f8/0x400
[   54.282450][ T8437]  seq_read_iter+0x4d3/0x1220
[   54.287116][ T8437]  seq_read+0x3dd/0x5b0
[   54.291249][ T8437]  ? seq_read_iter+0x1220/0x1220
[   54.296169][ T8437]  ? lock_downgrade+0x6d0/0x6d0
[   54.301000][ T8437]  ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[   54.307224][ T8437]  kernfs_fop_read+0xe9/0x590
[   54.311881][ T8437]  ? rw_verify_area+0x11d/0x350
[   54.316710][ T8437]  ? kernfs_vma_page_mkwrite+0x230/0x230
[   54.322323][ T8437]  vfs_read+0x1b5/0x570
[   54.326461][ T8437]  ksys_read+0x12d/0x250
[   54.330676][ T8437]  ? vfs_write+0xa80/0xa80
[   54.335130][ T8437]  ? syscall_enter_from_user_mode+0x1d/0x50
[   54.341005][ T8437]  do_syscall_64+0x2d/0x70
[   54.345397][ T8437]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   54.351269][ T8437] RIP: 0033:0x4b117b
[   54.355137][ T8437] Code: ff e9 69 ff ff ff cc cc cc cc cc cc cc cc cc e8 9b c2 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
[   54.374718][ T8437] RSP: 002b:000000c00030f738 EFLAGS: 00000216 ORIG_RAX: 0000000000000000
[   54.383112][ T8437] RAX: ffffffffffffffda RBX: 000000c00001e000 RCX: 00000000004b117b
[   54.391062][ T8437] RDX: 0000000000001200 RSI: 000000c00033b300 RDI: 0000000000000006
[   54.399009][ T8437] RBP: 000000c00030f788 R08: 0000000000000001 R09: 0000000000000002
[   54.406957][ T8437] R10: 0000000000001200 R11: 0000000000000216 R12: ffffffffffffffff
[   54.414902][ T8437] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000005
[   54.423900][ T8437] ================================================================================
[   54.433203][ T8437] Kernel panic - not syncing: panic_on_warn set ...
[   54.439765][ T8437] CPU: 1 PID: 8437 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0
[   54.447715][ T8437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.457746][ T8437] Call Trace:
[   54.461001][ T8437]  dump_stack+0x107/0x163
[   54.465309][ T8437]  panic+0x343/0x77f
[   54.469182][ T8437]  ? __warn_printk+0xf3/0xf3
[   54.473754][ T8437]  ? ubsan_epilogue+0x3e/0x5a
[   54.478430][ T8437]  ubsan_epilogue+0x54/0x5a
[   54.482974][ T8437]  __ubsan_handle_load_invalid_value.cold+0x62/0x6c
[   54.489542][ T8437]  param_get_bool.cold+0x14/0x19
[   54.494459][ T8437]  param_attr_show+0x14a/0x220
[   54.499201][ T8437]  ? kernel_param_unlock+0x40/0x40
[   54.504295][ T8437]  module_attr_show+0x48/0x70
[   54.508952][ T8437]  ? func_ptr_is_kernel_text+0x80/0x80
[   54.514385][ T8437]  sysfs_kf_seq_show+0x1f8/0x400
[   54.519301][ T8437]  seq_read_iter+0x4d3/0x1220
[   54.523984][ T8437]  seq_read+0x3dd/0x5b0
[   54.528120][ T8437]  ? seq_read_iter+0x1220/0x1220
[   54.533040][ T8437]  ? lock_downgrade+0x6d0/0x6d0
[   54.537871][ T8437]  ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[   54.544093][ T8437]  kernfs_fop_read+0xe9/0x590
[   54.548751][ T8437]  ? rw_verify_area+0x11d/0x350
[   54.553581][ T8437]  ? kernfs_vma_page_mkwrite+0x230/0x230
[   54.559194][ T8437]  vfs_read+0x1b5/0x570
[   54.563331][ T8437]  ksys_read+0x12d/0x250
[   54.567550][ T8437]  ? vfs_write+0xa80/0xa80
[   54.571943][ T8437]  ? syscall_enter_from_user_mode+0x1d/0x50
[   54.577818][ T8437]  do_syscall_64+0x2d/0x70
[   54.582210][ T8437]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   54.588143][ T8437] RIP: 0033:0x4b117b
[   54.592013][ T8437] Code: ff e9 69 ff ff ff cc cc cc cc cc cc cc cc cc e8 9b c2 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
[   54.611599][ T8437] RSP: 002b:000000c00030f738 EFLAGS: 00000216 ORIG_RAX: 0000000000000000
[   54.619986][ T8437] RAX: ffffffffffffffda RBX: 000000c00001e000 RCX: 00000000004b117b
[   54.628049][ T8437] RDX: 0000000000001200 RSI: 000000c00033b300 RDI: 0000000000000006
[   54.635998][ T8437] RBP: 000000c00030f788 R08: 0000000000000001 R09: 0000000000000002
[   54.643947][ T8437] R10: 0000000000001200 R11: 0000000000000216 R12: ffffffffffffffff
[   54.651896][ T8437] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000005
[   54.663527][ T8437] Kernel Offset: disabled
[   54.668086][ T8437] Rebooting in 86400 seconds..