20-Aug-2026 09:35:47: building syzkaller on d78ea535f456172a095a6d211ee0a2de1d049968... 20-Aug-2026 09:36:09: fetching kernel... 20-Aug-2026 09:36:12: checked out kernel commit 7aa7a88586d9f98dc3f97c55ec4e06961e2dabd0 ("ANDROID: 16K: x86_64: Re-enable userfaultfd", 2026-08-19 15:31:22 -0700 -0700) 20-Aug-2026 09:36:12: cleaning kernel... 20-Aug-2026 09:36:13: building kernel... 20-Aug-2026 09:40:48: kernel built successfully with compiler Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 20-Aug-2026 09:40:48: testing patch... 20-Aug-2026 09:52:51: reproduced crash: INFO: task hung in usbdev_ioctl