0x000000003c39-0x000000020000 : ""
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5332 Comm: syz.0.0 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
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 fail_dump lib/fault-inject.c:73 [inline]
 should_fail_ex+0x412/0x560 lib/fault-inject.c:174
 should_failslab+0xa8/0x100 mm/failslab.c:46
 slab_pre_alloc_hook mm/slub.c:4522 [inline]
 slab_alloc_node mm/slub.c:4875 [inline]
 __do_kmalloc_node mm/slub.c:5294 [inline]
 __kmalloc_node_track_caller_noprof+0xeb/0x7b0 mm/slub.c:5407
 __kmemdup_nul mm/util.c:64 [inline]
 kstrdup+0x42/0x100 mm/util.c:84
 __kernfs_new_node+0xaa/0x970 fs/kernfs/dir.c:660
 kernfs_new_node+0x102/0x210 fs/kernfs/dir.c:748
 kernfs_create_dir_ns+0x44/0x130 fs/kernfs/dir.c:1121
 sysfs_create_dir_ns+0x12f/0x2a0 fs/sysfs/dir.c:59
 create_dir lib/kobject.c:73 [inline]
 kobject_add_internal+0x62b/0xd00 lib/kobject.c:240
 kobject_add_varg lib/kobject.c:374 [inline]
 kobject_add+0x163/0x240 lib/kobject.c:426
 device_add+0x408/0xbb0 drivers/base/core.c:3629
 add_mtd_device+0xd2c/0x1750 drivers/mtd/mtdcore.c:801
 mtd_add_partition+0x316/0x510 drivers/mtd/mtdpart.c:280
 mtdchar_blkpg_ioctl+0x28a/0x2c0 drivers/mtd/mtdchar.c:562
 mtdchar_ioctl+0x14f7/0x1bc0 drivers/mtd/mtdchar.c:1218
 mtdchar_unlocked_ioctl+0xae/0xd0 drivers/mtd/mtdchar.c:1241
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc340d9cdd9
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:00007fc341c14fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc341015fa0 RCX: 00007fc340d9cdd9
RDX: 0000200000000580 RSI: 0000000000001269 RDI: 0000000000000004
RBP: 00007fc341c15050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fc341016038 R14: 00007fc341015fa0 R15: 00007fff467f55b8
 </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+0x78/0x80 drivers/mtd/mtdpart.c:38, CPU#0: syz.0.0/5332
Modules linked in:
CPU: 0 UID: 0 PID: 5332 Comm: syz.0.0 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+0x78/0x80 drivers/mtd/mtdpart.c:38
Code: e8 03 42 80 3c 38 00 74 05 e8 34 b2 cb fb 48 8b 7b 38 e8 cb fa bf fb 48 89 df 5b 41 5e 41 5f e9 be fa bf fb e8 69 e6 5e fb 90 <0f> 0b 90 eb c8 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000c44f4b0 EFLAGS: 00010293
RAX: ffffffff8666ead7 RBX: ffff888012b4f000 RCX: ffff88801aa24a00
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888012b4f000
RBP: 0000000000000001 R08: ffff888032434fef R09: 1ffff110064869fd
R10: dffffc0000000000 R11: ffffed10064869fe R12: 1ffffffff18a66c8
R13: dffffc0000000000 R14: ffff888012b4f6a8 R15: dffffc0000000000
FS:  00007fc341c156c0(0000) GS:ffff88808c881000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc341bf3ff8 CR3: 0000000012ad4000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 mtd_release+0x8f/0xd0 drivers/mtd/mtdcore.c:102
 device_release+0xc4/0x1f0 drivers/base/core.c:-1
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x228/0x560 lib/kobject.c:737
 add_mtd_device+0xd9c/0x1750 drivers/mtd/mtdcore.c:803
 mtd_add_partition+0x316/0x510 drivers/mtd/mtdpart.c:280
 mtdchar_blkpg_ioctl+0x28a/0x2c0 drivers/mtd/mtdchar.c:562
 mtdchar_ioctl+0x14f7/0x1bc0 drivers/mtd/mtdchar.c:1218
 mtdchar_unlocked_ioctl+0xae/0xd0 drivers/mtd/mtdchar.c:1241
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc340d9cdd9
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:00007fc341c14fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc341015fa0 RCX: 00007fc340d9cdd9
RDX: 0000200000000580 RSI: 0000000000001269 RDI: 0000000000000004
RBP: 00007fc341c15050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fc341016038 R14: 00007fc341015fa0 R15: 00007fff467f55b8
 </TASK>