virtio-scsi blksize=512 sectors=4194304 = 2048 MiB
drive 0x000f27f0: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304
Sending Seabios boot VM event.
Booting from Hard Disk 0...
[    0serialport: Connected to syzkaller.us-central1-c.ci-upstream-net-this-kasan-gce-test-0 port 1 (session ID: 3b1999868ea2ef88666d431b5d718242b5034c6b6de9d2eeea2481b2def57aca, active connections: 1).
.000000][    T0] UBSAN: negation-overflow in lib/sort.c:199:36