================================================================================
UBSAN: Undefined behaviour in drivers/vhost/vhost.c:116:62
load of value 255 is not a valid value for type '_Bool'
CPU: 0 PID: 13907 Comm: syz-executor.4 Not tainted 4.19.145-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x22c/0x33e lib/dump_stack.c:118
 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161
 __ubsan_handle_load_invalid_value.cold+0x63/0x6f lib/ubsan.c:454
 vhost_init_is_le drivers/vhost/vhost.c:116 [inline]
 vhost_reset_is_le drivers/vhost/vhost.c:143 [inline]
 vhost_vq_reset.constprop.0.cold+0x15/0x1a drivers/vhost/vhost.c:325
 vhost_dev_init+0x442/0x780 drivers/vhost/vhost.c:463
 vhost_vsock_dev_open+0x1c9/0x310 drivers/vhost/vsock.c:583
 misc_open+0x372/0x4a0 drivers/char/misc.c:141
 chrdev_open+0x266/0x770 fs/char_dev.c:423
 do_dentry_open+0x4aa/0x1160 fs/open.c:796
 do_last fs/namei.c:3421 [inline]
 path_openat+0x7d5/0x2e90 fs/namei.c:3537
 do_filp_open+0x18c/0x3f0 fs/namei.c:3567
 do_sys_open+0x3b3/0x520 fs/open.c:1085
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45d5f9
Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fd84cc65c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000243c0 RCX: 000000000045d5f9
RDX: 0000000000000002 RSI: 0000000020000100 RDI: ffffffffffffff9c
RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007fff2e5e4e2f R14: 00007fd84cc669c0 R15: 000000000118cf4c
================================================================================
nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based  firewall rule not found. Use the iptables CT target to attach helpers instead.
JFS: Cannot determine volume size
JFS: discard option not supported on device
JFS: Cannot determine volume size
JFS: discard option not supported on device
JFS: Cannot determine volume size
JFS: discard option not supported on device
JFS: Cannot determine volume size
JFS: discard option not supported on device
JFS: Cannot determine volume size
JFS: discard option not supported on device
nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based  firewall rule not found. Use the iptables CT target to attach helpers instead.
nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based  firewall rule not found. Use the iptables CT target to attach helpers instead.