R13: 00007fc433a16038 R14: 00007fc433a15fa0 R15: 00007ffc4ba25c98
 </TASK>
kobject: kobject_add_internal failed for mtd1 (error: -12 parent: mtd)
------------[ cut here ]------------
!list_empty(&mtd->part.node)
WARNING: drivers/mtd/mtdpart.c:38 at release_mtd_partition+0x71/0x90 drivers/mtd/mtdpart.c:38, CPU#1: syz.4.249/6801
Modules linked in:
CPU: 1 UID: 0 PID: 6801 Comm: syz.4.249 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:release_mtd_partition+0x71/0x90 drivers/mtd/mtdpart.c:38
Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 1e 48 8b 7b 38 e8 bf dc d6 fb 48 89 df 5b 5d e9 b5 dc d6 fb e8 90 f0 74 fb 90 <0f> 0b 90 eb c2 e8 a5 af e2 fb eb db 48 89 ef e8 9b af e2 fb eb a5
RSP: 0018:ffffc9000655f818 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88802b9fb000 RCX: ffffffff8b85dff3
RDX: ffff888055d02500 RSI: ffffffff8693be50 RDI: ffff88802b9fb000
RBP: ffff88802b9fb6a8 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88802bed4820 R15: 0000000000000000
FS:  00007fc43473c6c0(0000) GS:ffff8880d646d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc43471bd58 CR3: 000000002f610000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 mtd_release+0xa0/0xd0 drivers/mtd/mtdcore.c:102
 device_release+0xd2/0x270 drivers/base/core.c:2566
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1f7/0x640 lib/kobject.c:737
 put_device+0x1f/0x30 drivers/base/core.c:3814
 add_mtd_device+0xbd7/0x17a0 drivers/mtd/mtdcore.c:803
 mtd_add_partition+0x30a/0x660 drivers/mtd/mtdpart.c:280
 mtdchar_blkpg_ioctl+0x207/0x250 drivers/mtd/mtdchar.c:562
 mtdchar_ioctl+0x1670/0x1fd0 drivers/mtd/mtdchar.c:1218
 mtdchar_unlocked_ioctl+0xb0/0xf0 drivers/mtd/mtdchar.c:1241
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x10b/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc43379ce59
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:00007fc43473c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc433a15fa0 RCX: 00007fc43379ce59
RDX: 00002000000000c0 RSI: 0000000000001269 RDI: 0000000000000004
RBP: 00007fc43473c090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fc433a16038 R14: 00007fc433a15fa0 R15: 00007ffc4ba25c98
 </TASK>