16-Oct-2026 19:56:19: building syzkaller on 770ff59fb77d138f63af2893d3f1c97da2625d05... 16-Oct-2026 19:56:43: fetching kernel... 16-Oct-2026 19:56:48: checked out kernel commit 70dd4ee72eb2d5793c62e71c14e3aba78e5a4e56 ("Merge tag 'pinctrl-v7.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl", 2026-10-16 08:21:06 -0700 -0700) 16-Oct-2026 19:56:48: cleaning kernel... 16-Oct-2026 19:56:50: building kernel... 16-Oct-2026 20:08:54: kernel built successfully with compiler Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 16-Oct-2026 20:08:54: testing patch... 16-Oct-2026 20:12:38: reproduced crash: UBSAN: shift-out-of-bounds in befs_check_sb