MINIX-fs: mounting unchecked file system, running fsck is recommended
==================================================================
BUG: KASAN: null-ptr-deref in test_and_set_bit_lock include/asm-generic/bitops/instrumented-lock.h:55 [inline]
BUG: KASAN: null-ptr-deref in trylock_buffer include/linux/buffer_head.h:367 [inline]
BUG: KASAN: null-ptr-deref in lock_buffer include/linux/buffer_head.h:373 [inline]
BUG: KASAN: null-ptr-deref in alloc_branch fs/minix/itree_common.c:88 [inline]
BUG: KASAN: null-ptr-deref in get_block+0x916/0x1600 fs/minix/itree_common.c:191
Write of size 8 at addr 0000000000000000 by task syz-executor.1/31476

CPU: 0 PID: 31476 Comm: syz-executor.1 Not tainted 5.7.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1e9/0x30e lib/dump_stack.c:118
 __kasan_report+0x122/0x1a0 mm/kasan/report.c:515
 kasan_report+0x4d/0x80 mm/kasan/common.c:625
==================================================================
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 31476 Comm: syz-executor.1 Tainted: G    B             5.7.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1e9/0x30e lib/dump_stack.c:118
 panic+0x264/0x7a0 kernel/panic.c:221
 end_report mm/kasan/report.c:103 [inline]
 __kasan_report+0x191/0x1a0 mm/kasan/report.c:518
 kasan_report+0x4d/0x80 mm/kasan/common.c:625
Kernel Offset: disabled
Rebooting in 86400 seconds..