20-Aug-2026 09:18:52: building syzkaller on d78ea535f456172a095a6d211ee0a2de1d049968... 20-Aug-2026 09:19:17: fetching kernel... 20-Aug-2026 09:19:21: checked out kernel commit 7aa7a88586d9f98dc3f97c55ec4e06961e2dabd0 ("ANDROID: 16K: x86_64: Re-enable userfaultfd", 2026-08-19 15:31:22 -0700 -0700) 20-Aug-2026 09:19:21: cleaning kernel... 20-Aug-2026 09:19:22: building kernel... 20-Aug-2026 09:24:16: 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 09:24:16: testing patch... 20-Aug-2026 09:35:36: reproduced crash: INFO: task hung in usbdev_ioctl