------------[ cut here ]------------ kernel BUG at drivers/vhost/vhost.c:2240! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 7970 Comm: vhost-7969 Not tainted 4.14.267-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88808f8be6c0 task.stack: ffff8880b3b68000 RIP: 0010:vhost_get_vq_desc+0x1b5c/0x20c0 drivers/vhost/vhost.c:2240 RSP: 0018:ffff8880b3b6fb80 EFLAGS: 00010297 RAX: ffff88808f8be6c0 RBX: 0000000000000001 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffff8880b3b6fdb8 RDI: ffff888091784b86 RBP: 0000000000000000 R08: 0000000000000400 R09: 0000000000000001 R10: ffff8880b3b6fc5f R11: ffff88808f8be6c0 R12: ffff888091784b98 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880917849c8 FS: 0000000000000000(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000002 CR3: 00000000ab171000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vhost_vsock_handle_tx_kick+0x1d1/0x900 drivers/vhost/vsock.c:460 vhost_worker+0x267/0x450 drivers/vhost/vhost.c:364 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Code: 94 00 00 00 48 c7 c6 c0 86 48 88 48 c7 c7 38 08 06 8a 48 89 ca 48 c1 e1 04 48 01 d9 e8 ee 38 aa fd e9 c1 fc ff ff e8 44 2e d6 fb <0f> 0b e8 3d 2e d6 fb 44 89 f2 b9 10 00 00 00 48 c7 c6 c0 84 48 RIP: vhost_get_vq_desc+0x1b5c/0x20c0 drivers/vhost/vhost.c:2240 RSP: ffff8880b3b6fb80 ---[ end trace 6d65af052c41cb5b ]---