Warning: Permanently added '10.128.0.175' (ECDSA) to the list of known hosts.
2020/12/27 11:40:45 fuzzer started
syzkaller login: [   56.043502][ T8481] ================================================================================
[   56.053478][ T8481] UBSAN: invalid-load in kernel/params.c:302:33
[   56.060542][ T8481] load of value 255 is not a valid value for type '_Bool'
[   56.068063][ T8481] CPU: 0 PID: 8481 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0
[   56.076640][ T8481] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   56.086961][ T8481] Call Trace:
[   56.090225][ T8481]  dump_stack+0x107/0x163
[   56.094643][ T8481]  ubsan_epilogue+0xb/0x5a
[   56.099321][ T8481]  __ubsan_handle_load_invalid_value.cold+0x62/0x6c
[   56.105998][ T8481]  param_get_bool.cold+0x14/0x19
[   56.110921][ T8481]  param_attr_show+0x14a/0x220
[   56.115671][ T8481]  ? kernel_param_unlock+0x40/0x40
[   56.120770][ T8481]  module_attr_show+0x48/0x70
[   56.125515][ T8481]  ? func_ptr_is_kernel_text+0x80/0x80
[   56.132084][ T8481]  sysfs_kf_seq_show+0x1f8/0x400
[   56.137092][ T8481]  seq_read_iter+0x4d3/0x1220
[   56.141757][ T8481]  seq_read+0x3dd/0x5b0
[   56.145989][ T8481]  ? seq_read_iter+0x1220/0x1220
[   56.150912][ T8481]  ? lock_downgrade+0x6d0/0x6d0
[   56.155742][ T8481]  ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[   56.161985][ T8481]  kernfs_fop_read+0xe9/0x590
[   56.166641][ T8481]  ? rw_verify_area+0x11d/0x350
[   56.171473][ T8481]  ? kernfs_vma_page_mkwrite+0x230/0x230
[   56.177088][ T8481]  vfs_read+0x1b5/0x570
[   56.181241][ T8481]  ksys_read+0x12d/0x250
[   56.185463][ T8481]  ? vfs_write+0xa80/0xa80
[   56.189867][ T8481]  ? syscall_enter_from_user_mode+0x1d/0x50
[   56.195746][ T8481]  do_syscall_64+0x2d/0x70
[   56.200142][ T8481]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   56.206016][ T8481] RIP: 0033:0x4b117b
[   56.209887][ T8481] 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
[   56.230004][ T8481] RSP: 002b:000000c0000a9738 EFLAGS: 00000216 ORIG_RAX: 0000000000000000
[   56.238488][ T8481] RAX: ffffffffffffffda RBX: 000000c00001e000 RCX: 00000000004b117b
[   56.246439][ T8481] RDX: 0000000000001200 RSI: 000000c00030b300 RDI: 0000000000000006
[   56.254389][ T8481] RBP: 000000c0000a9788 R08: 0000000000000001 R09: 0000000000000002
[   56.262368][ T8481] R10: 0000000000001200 R11: 0000000000000216 R12: ffffffffffffffff
[   56.270791][ T8481] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000005
[   56.280744][ T8481] ================================================================================
[   56.290835][ T8481] Kernel panic - not syncing: panic_on_warn set ...
[   56.297569][ T8481] CPU: 0 PID: 8481 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0
[   56.305520][ T8481] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   56.315641][ T8481] Call Trace:
[   56.318906][ T8481]  dump_stack+0x107/0x163
[   56.323219][ T8481]  panic+0x343/0x77f
[   56.327088][ T8481]  ? __warn_printk+0xf3/0xf3
[   56.331748][ T8481]  ? ubsan_epilogue+0x3e/0x5a
[   56.336415][ T8481]  ubsan_epilogue+0x54/0x5a
[   56.341161][ T8481]  __ubsan_handle_load_invalid_value.cold+0x62/0x6c
[   56.347910][ T8481]  param_get_bool.cold+0x14/0x19
[   56.352832][ T8481]  param_attr_show+0x14a/0x220
[   56.357576][ T8481]  ? kernel_param_unlock+0x40/0x40
[   56.362673][ T8481]  module_attr_show+0x48/0x70
[   56.367329][ T8481]  ? func_ptr_is_kernel_text+0x80/0x80
[   56.372768][ T8481]  sysfs_kf_seq_show+0x1f8/0x400
[   56.377691][ T8481]  seq_read_iter+0x4d3/0x1220
[   56.382356][ T8481]  seq_read+0x3dd/0x5b0
[   56.386493][ T8481]  ? seq_read_iter+0x1220/0x1220
[   56.391412][ T8481]  ? lock_downgrade+0x6d0/0x6d0
[   56.396244][ T8481]  ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[   56.402467][ T8481]  kernfs_fop_read+0xe9/0x590
[   56.407125][ T8481]  ? rw_verify_area+0x11d/0x350
[   56.411951][ T8481]  ? kernfs_vma_page_mkwrite+0x230/0x230
[   56.417560][ T8481]  vfs_read+0x1b5/0x570
[   56.421695][ T8481]  ksys_read+0x12d/0x250
[   56.425922][ T8481]  ? vfs_write+0xa80/0xa80
[   56.430318][ T8481]  ? syscall_enter_from_user_mode+0x1d/0x50
[   56.436192][ T8481]  do_syscall_64+0x2d/0x70
[   56.440610][ T8481]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   56.446572][ T8481] RIP: 0033:0x4b117b
[   56.450441][ T8481] 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
[   56.470152][ T8481] RSP: 002b:000000c0000a9738 EFLAGS: 00000216 ORIG_RAX: 0000000000000000
[   56.478552][ T8481] RAX: ffffffffffffffda RBX: 000000c00001e000 RCX: 00000000004b117b
[   56.486776][ T8481] RDX: 0000000000001200 RSI: 000000c00030b300 RDI: 0000000000000006
[   56.494844][ T8481] RBP: 000000c0000a9788 R08: 0000000000000001 R09: 0000000000000002
[   56.502943][ T8481] R10: 0000000000001200 R11: 0000000000000216 R12: ffffffffffffffff
[   56.510992][ T8481] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000005
[   56.522557][ T8481] Kernel Offset: disabled
[   56.527029][ T8481] Rebooting in 86400 seconds..