md: array md3 already has disks!
md: could not open device unknown-block(1,6).
md: error, md_import_device() returned -16
==================================================================
BUG: KASAN: null-ptr-deref in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: null-ptr-deref in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
BUG: KASAN: null-ptr-deref in raid5_has_ppl drivers/md/raid5-log.h:54 [inline]
BUG: KASAN: null-ptr-deref in log_exit drivers/md/raid5-log.h:128 [inline]
BUG: KASAN: null-ptr-deref in free_conf+0x90/0x4b0 drivers/md/raid5.c:7451
Read of size 8 at addr 0000000000000028 by task syz.3.2192/13801

CPU: 0 PID: 13801 Comm: syz.3.2192 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106
 kasan_report+0x117/0x150 mm/kasan/report.c:581
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x241/0x290 mm/kasan/generic.c:187
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 raid5_has_ppl drivers/md/raid5-log.h:54 [inline]
 log_exit drivers/md/raid5-log.h:128 [inline]
 free_conf+0x90/0x4b0 drivers/md/raid5.c:7451
 setup_conf+0x16ca/0x2a50 drivers/md/raid5.c:7785
 raid5_run+0x8af/0x2a30 drivers/md/raid5.c:7963
 md_run+0x10c5/0x2230 drivers/md/md.c:6149
 do_md_run+0x34/0x570 drivers/md/md.c:6281
 md_ioctl+0x20fa/0x24e0 drivers/md/md.c:7922
 blkdev_ioctl+0x5b2/0x730 block/ioctl.c:639
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe54c59fb19
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe54d471028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fe54c825fa0 RCX: 00007fe54c59fb19
RDX: 0000000000000000 RSI: 00000000400c0930 RDI: 0000000000000003
RBP: 00007fe54c637b70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe54c826038 R14: 00007fe54c825fa0 R15: 00007ffd6acfb518
 </TASK>
==================================================================