================================================================================
UBSAN: Undefined behaviour in drivers/vhost/vhost.c:116:62
load of value 63 is not a valid value for type '_Bool'
CPU: 0 PID: 2288 Comm: syz-executor.4 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_vsock_dev_open+0x1c9/0x310 drivers/vhost/vsock.c:629
 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:00007f689e583c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000024840 RCX: 000000000045de59
RDX: 0000000000000002 RSI: 0000000020000480 RDI: ffffffffffffff9c
RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffed2d98aef R14: 00007f689e5849c0 R15: 000000000118bf2c
================================================================================
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 'syz-executor.3': attribute type 5 has an invalid length.
audit: type=1326 audit(1603181896.167:31): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=2577 comm="syz-executor.4" exe="/root/syz-executor.4" sig=9 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0
print_req_error: 620 callbacks suppressed
print_req_error: I/O error, dev loop3, sector 208000
print_req_error: I/O error, dev loop3, sector 208000
print_req_error: I/O error, dev loop3, sector 32640
print_req_error: I/O error, dev loop3, sector 32640
print_req_error: I/O error, dev loop3, sector 0
print_req_error: I/O error, dev loop3, sector 1
print_req_error: I/O error, dev loop3, sector 32640
buffer_io_error: 530 callbacks suppressed
Buffer I/O error on dev loop3p6, logical block 4080, async page read
print_req_error: I/O error, dev loop3, sector 32640
Buffer I/O error on dev loop3p4, logical block 4080, async page read
print_req_error: I/O error, dev loop3, sector 208000
Buffer I/O error on dev loop3p2, logical block 208000, async page read
print_req_error: I/O error, dev loop3, sector 0
Buffer I/O error on dev loop3p3, logical block 0, async page read
Buffer I/O error on dev loop3p5, logical block 208000, async page read
Buffer I/O error on dev loop3p5, logical block 208001, async page read
Buffer I/O error on dev loop3p5, logical block 208002, async page read
Buffer I/O error on dev loop3p5, logical block 208003, async page read
Buffer I/O error on dev loop3p5, logical block 208004, async page read
Buffer I/O error on dev loop3p2, logical block 208004, async page read
audit: type=1326 audit(1603181896.967:32): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=2577 comm="syz-executor.4" exe="/root/syz-executor.4" sig=9 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0
VFS: Can't find a Minix filesystem V1 | V2 | V3 on device loop3.
VFS: Can't find a Minix filesystem V1 | V2 | V3 on device loop3.
print_req_error: 912 callbacks suppressed
print_req_error: I/O error, dev loop3, sector 1
print_req_error: I/O error, dev loop3, sector 208000
print_req_error: I/O error, dev loop3, sector 0
print_req_error: I/O error, dev loop3, sector 32640
print_req_error: I/O error, dev loop3, sector 208000
print_req_error: I/O error, dev loop3, sector 32640
print_req_error: I/O error, dev loop3, sector 1
buffer_io_error: 782 callbacks suppressed
Buffer I/O error on dev loop3p1, logical block 0, async page read
print_req_error: I/O error, dev loop3, sector 1
Buffer I/O error on dev loop3p1, logical block 0, async page read
print_req_error: I/O error, dev loop3, sector 1
Buffer I/O error on dev loop3p1, logical block 0, async page read
print_req_error: I/O error, dev loop3, sector 0
Buffer I/O error on dev loop3p3, logical block 0, async page read
Buffer I/O error on dev loop3p2, logical block 208000, async page read