Warning: Permanently added '10.128.0.126' (ECDSA) to the list of known hosts.
2020/12/27 12:39:12 fuzzer started
syzkaller login: [   73.218036][ T8458] ================================================================================
[   73.227955][ T8458] UBSAN: invalid-load in kernel/params.c:302:33
[   73.234914][ T8458] load of value 255 is not a valid value for type '_Bool'
[   73.242130][ T8458] CPU: 0 PID: 8458 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0
[   73.250112][ T8458] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   73.260391][ T8458] Call Trace:
[   73.263802][ T8458]  dump_stack+0x107/0x163
[   73.268308][ T8458]  ubsan_epilogue+0xb/0x5a
[   73.272720][ T8458]  __ubsan_handle_load_invalid_value.cold+0x62/0x6c
[   73.279315][ T8458]  param_get_bool.cold+0x14/0x19
[   73.284283][ T8458]  param_attr_show+0x14a/0x220
[   73.289107][ T8458]  ? kernel_param_unlock+0x40/0x40
[   73.294247][ T8458]  module_attr_show+0x48/0x70
[   73.298937][ T8458]  ? func_ptr_is_kernel_text+0x80/0x80
[   73.304416][ T8458]  sysfs_kf_seq_show+0x1f8/0x400
[   73.309415][ T8458]  seq_read_iter+0x4d3/0x1220
[   73.314148][ T8458]  seq_read+0x3dd/0x5b0
[   73.318312][ T8458]  ? seq_read_iter+0x1220/0x1220
[   73.323245][ T8458]  ? lock_downgrade+0x6d0/0x6d0
[   73.328137][ T8458]  ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[   73.334667][ T8458]  kernfs_fop_read+0xe9/0x590
[   73.339587][ T8458]  ? rw_verify_area+0x11d/0x350
[   73.344661][ T8458]  ? kernfs_vma_page_mkwrite+0x230/0x230
[   73.350311][ T8458]  vfs_read+0x1b5/0x570
[   73.354499][ T8458]  ksys_read+0x12d/0x250
[   73.358767][ T8458]  ? vfs_write+0xa80/0xa80
[   73.363183][ T8458]  ? syscall_enter_from_user_mode+0x1d/0x50
[   73.369195][ T8458]  do_syscall_64+0x2d/0x70
[   73.373620][ T8458]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   73.379578][ T8458] RIP: 0033:0x4b117b
[   73.383488][ T8458] 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
[   73.403083][ T8458] RSP: 002b:000000c0000ab738 EFLAGS: 00000216 ORIG_RAX: 0000000000000000
[   73.411512][ T8458] RAX: ffffffffffffffda RBX: 000000c00001e000 RCX: 00000000004b117b
[   73.419490][ T8458] RDX: 0000000000001200 RSI: 000000c00030b300 RDI: 0000000000000006
[   73.427483][ T8458] RBP: 000000c0000ab788 R08: 0000000000000001 R09: 0000000000000002
[   73.435439][ T8458] R10: 0000000000001200 R11: 0000000000000216 R12: ffffffffffffffff
[   73.443398][ T8458] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000005
[   73.453312][ T8458] ================================================================================
[   73.462825][ T8458] Kernel panic - not syncing: panic_on_warn set ...
[   73.469427][ T8458] CPU: 0 PID: 8458 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0
[   73.477416][ T8458] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   73.487453][ T8458] Call Trace:
[   73.490721][ T8458]  dump_stack+0x107/0x163
[   73.495046][ T8458]  panic+0x343/0x77f
[   73.498993][ T8458]  ? __warn_printk+0xf3/0xf3
[   73.503583][ T8458]  ? ubsan_epilogue+0x3e/0x5a
[   73.508247][ T8458]  ubsan_epilogue+0x54/0x5a
[   73.512733][ T8458]  __ubsan_handle_load_invalid_value.cold+0x62/0x6c
[   73.519314][ T8458]  param_get_bool.cold+0x14/0x19
[   73.524298][ T8458]  param_attr_show+0x14a/0x220
[   73.529062][ T8458]  ? kernel_param_unlock+0x40/0x40
[   73.534161][ T8458]  module_attr_show+0x48/0x70
[   73.538823][ T8458]  ? func_ptr_is_kernel_text+0x80/0x80
[   73.544264][ T8458]  sysfs_kf_seq_show+0x1f8/0x400
[   73.549187][ T8458]  seq_read_iter+0x4d3/0x1220
[   73.553859][ T8458]  seq_read+0x3dd/0x5b0
[   73.558008][ T8458]  ? seq_read_iter+0x1220/0x1220
[   73.562937][ T8458]  ? lock_downgrade+0x6d0/0x6d0
[   73.567773][ T8458]  ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[   73.574017][ T8458]  kernfs_fop_read+0xe9/0x590
[   73.578696][ T8458]  ? rw_verify_area+0x11d/0x350
[   73.583547][ T8458]  ? kernfs_vma_page_mkwrite+0x230/0x230
[   73.589175][ T8458]  vfs_read+0x1b5/0x570
[   73.593332][ T8458]  ksys_read+0x12d/0x250
[   73.597556][ T8458]  ? vfs_write+0xa80/0xa80
[   73.601965][ T8458]  ? syscall_enter_from_user_mode+0x1d/0x50
[   73.607844][ T8458]  do_syscall_64+0x2d/0x70
[   73.612263][ T8458]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   73.618143][ T8458] RIP: 0033:0x4b117b
[   73.622042][ T8458] 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
[   73.641648][ T8458] RSP: 002b:000000c0000ab738 EFLAGS: 00000216 ORIG_RAX: 0000000000000000
[   73.650063][ T8458] RAX: ffffffffffffffda RBX: 000000c00001e000 RCX: 00000000004b117b
[   73.658018][ T8458] RDX: 0000000000001200 RSI: 000000c00030b300 RDI: 0000000000000006
[   73.665973][ T8458] RBP: 000000c0000ab788 R08: 0000000000000001 R09: 0000000000000002
[   73.673931][ T8458] R10: 0000000000001200 R11: 0000000000000216 R12: ffffffffffffffff
[   73.681893][ T8458] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000005
[   73.693924][ T8458] Kernel Offset: disabled
[   73.698387][ T8458] Rebooting in 86400 seconds..