================================================================================
UBSAN: Undefined behaviour in drivers/vhost/vhost.c:116:62
load of value 77 is not a valid value for type '_Bool'
CPU: 0 PID: 20060 Comm: syz-executor.5 Not tainted 4.19.152-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_net_open+0x54c/0x730 drivers/vhost/net.c:1103
 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: 0033:0x45de59
Code: 0d 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f7d727cac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000024a80 RCX: 000000000045de59
RDX: 0000000000000002 RSI: 00000000200000c0 RDI: ffffffffffffff9c
RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffdbc6ba03f R14: 00007f7d727cb9c0 R15: 000000000118bf2c
================================================================================
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'.
vxfs: WRONG superblock magic 105034be at 1
vxfs: WRONG superblock magic 00000000 at 8
vxfs: can't find superblock.
audit: type=1804 audit(1603208399.453:7712): pid=20309 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir406588856/syzkaller.wqn6W9/900/bus" dev="sda1" ino=16932 res=1
kvm [20334]: vcpu0, guest rIP: 0x14c Hyper-V uhandled wrmsr: 0x40000042 data 0xfffe
audit: type=1804 audit(1603208399.833:7713): pid=20350 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir406588856/syzkaller.wqn6W9/900/bus" dev="sda1" ino=16932 res=1
audit: type=1800 audit(1603208399.833:7714): pid=20309 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.2" name="bus" dev="sda1" ino=16932 res=0
kvm [20334]: vcpu0, guest rIP: 0x14c Hyper-V uhandled wrmsr: 0x40000041 data 0xff90
audit: type=1800 audit(1603208399.833:7715): pid=20350 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.2" name="bus" dev="sda1" ino=16932 res=0
audit: type=1800 audit(1603208400.193:7716): pid=20353 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.5" name="bus" dev="sda1" ino=16964 res=0
9pnet: Insufficient options for proto=fd
device ipvlan1 entered promiscuous mode
team0: Device ipvlan1 failed to register rx_handler
team0: Device ipvlan1 failed to register rx_handler
team0: Device ipvlan1 failed to register rx_handler
audit: type=1800 audit(1603208403.053:7717): pid=20551 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.2" name="bus" dev="sda1" ino=16986 res=0
IPVS: ftp: loaded support on port[0] = 21
audit: type=1800 audit(1603208404.633:7718): pid=20609 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.2" name="bus" dev="sda1" ino=15754 res=0
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'.
audit: type=1800 audit(1603208404.883:7719): pid=20646 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.5" name="bus" dev="sda1" ino=16995 res=0
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'.
IPVS: ftp: loaded support on port[0] = 21
audit: type=1800 audit(1603208405.873:7720): pid=20755 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.2" name="bus" dev="sda1" ino=17009 res=0
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'.
audit: type=1800 audit(1603208406.223:7721): pid=20707 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.5" name="bus" dev="sda1" ino=16942 res=0
EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue