22-Oct-2026 19:34:50: building syzkaller on 753c55b9fb3983f31c253085b34a2be4a0022d54...
22-Oct-2026 19:35:16: fetching kernel...
22-Oct-2026 19:35:18: checked out kernel commit 3ad9f1eca4fa204bb4428fa7f6e8448cee35d055 ("UPSTREAM: ipv4: validate checksum_start before completing checksum", 2026-10-21 01:44:02 -0700 -0700)
22-Oct-2026 19:35:18: cleaning kernel...
22-Oct-2026 19:35:19: building kernel...
22-Oct-2026 19:38:45: kernel built successfully with compiler Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8
22-Oct-2026 19:38:45: testing patch...
22-Oct-2026 19:54:16: reproduced crash: kernel BUG in mb_mark_used