5fe0: 76feee88 76feee78 00018bc4 00130300
 r10:00000036 r9:8480c980 r8:8020029c r7:00000036 r6:0012ed04 r5:00000000
 r4:00000000
------------[ cut here ]------------
WARNING: drivers/mtd/mtdpart.c:37 at release_mtd_partition+0x4c/0x50 drivers/mtd/mtdpart.c:37, CPU#0: syz.0.1928/10783
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 0 UID: 0 PID: 10783 Comm: syz.0.1928 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: ARM-Versatile Express
Call trace: 
[<80201a14>] (dump_backtrace) from [<80201b08>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:8281e6fc r6:00000000 r5:822a987c r4:00000001
[<80201af0>] (show_stack) from [<8021e448>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201af0>] (show_stack) from [<8021e448>] (dump_stack_lvl+0x5c/0x70 lib/dump_stack.c:120)
[<8021e3ec>] (dump_stack_lvl) from [<8021e474>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r7:8281e6fc r6:00000000 r5:8480c980 r4:82a7cd3c
[<8021e45c>] (dump_stack) from [<8020260c>] (vpanic+0x114/0x320 kernel/panic.c:650)
[<802024f8>] (vpanic) from [<8020284c>] (trace_suspend_resume+0x0/0x104 kernel/panic.c:787)
 r7:80d11334
[<80202818>] (panic) from [<802507ec>] (check_panic_on_warn kernel/panic.c:524 [inline])
[<80202818>] (panic) from [<802507ec>] (get_taint+0x0/0x1c kernel/panic.c:519)
 r3:8280b544 r2:00000001 r1:822904c4 r0:82297d90
[<80250774>] (check_panic_on_warn) from [<80250968>] (__warn+0x98/0x1ac kernel/panic.c:1062)
[<802508d0>] (__warn) from [<80250bf4>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:1089)
 r8:00000009 r7:8236496c r6:e8485bbc r5:8480c980 r4:00000000
[<80250a80>] (warn_slowpath_fmt) from [<80d11334>] (release_mtd_partition+0x4c/0x50 drivers/mtd/mtdpart.c:37)
 r10:00000000 r9:fffffff4 r8:86852cf8 r7:00000000 r6:85de8980 r5:86852c00
 r4:86852c00
[<80d112e8>] (release_mtd_partition) from [<80d0b8e0>] (mtd_release+0x40/0x54 drivers/mtd/mtdcore.c:101)
 r5:86852c00 r4:05a0000a
[<80d0b8a0>] (mtd_release) from [<80b97c28>] (device_release+0x40/0xb0 drivers/base/core.c:2566)
 r5:00000000 r4:86852cf8
[<80b97be8>] (device_release) from [<81ac4b48>] (kobject_cleanup lib/kobject.c:689 [inline])
[<80b97be8>] (device_release) from [<81ac4b48>] (kobject_release lib/kobject.c:720 [inline])
[<80b97be8>] (device_release) from [<81ac4b48>] (kref_put include/linux/kref.h:65 [inline])
[<80b97be8>] (device_release) from [<81ac4b48>] (kobject_put+0xa0/0x258 lib/kobject.c:737)
 r5:81d54c54 r4:86852cf8
[<81ac4aa8>] (kobject_put) from [<80b97e6c>] (put_device+0x18/0x1c drivers/base/core.c:3799)
 r8:86852cf8 r7:05a0000a r6:fffffff4 r5:00000005 r4:86852c00
[<80b97e54>] (put_device) from [<80d0e918>] (add_mtd_device+0x66c/0x7f0 drivers/mtd/mtdcore.c:802)
[<80d0e2ac>] (add_mtd_device) from [<80d11224>] (mtd_add_partition+0x140/0x204 drivers/mtd/mtdpart.c:279)
 r10:00020003 r9:841d8708 r8:86852f10 r7:86852b10 r6:86852c00 r5:841d8400
 r4:841d8730
[<80d110e4>] (mtd_add_partition) from [<80d146e0>] (mtdchar_blkpg_ioctl drivers/mtd/mtdchar.c:562 [inline])
[<80d110e4>] (mtd_add_partition) from [<80d146e0>] (mtdchar_ioctl+0x125c/0x1474 drivers/mtd/mtdchar.c:1218)
 r10:8480c980 r9:85bee140 r8:86962500 r7:841d8400 r6:200000c0 r5:00000000
 r4:00020003
[<80d13484>] (mtdchar_ioctl) from [<80d14944>] (mtdchar_unlocked_ioctl+0x4c/0x64 drivers/mtd/mtdchar.c:1241)
 r10:8480c980 r9:00000004 r8:86962500 r7:200000c0 r6:00001269 r5:86962500
 r4:841d8740
[<80d148f8>] (mtdchar_unlocked_ioctl) from [<80590b44>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<80d148f8>] (mtdchar_unlocked_ioctl) from [<80590b44>] (do_vfs_ioctl fs/ioctl.c:551 [inline])
[<80d148f8>] (mtdchar_unlocked_ioctl) from [<80590b44>] (__do_sys_ioctl fs/ioctl.c:595 [inline])
[<80d148f8>] (mtdchar_unlocked_ioctl) from [<80590b44>] (sys_ioctl+0x244/0xb5c fs/ioctl.c:583)
 r7:200000c0 r6:00001269 r5:86962501 r4:00000000
[<80590900>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xe8485fa8 to 0xe8485ff0)
5fa0:                   00000000 00000000 00000004 00001269 200000c0 00000000
5fc0: 00000000 00000000 0012ed04 00000036 003462d8 00000000 00000001 76fef0dc
5fe0: 76feee88 76feee78 00018bc4 00130300
 r10:00000036 r9:8480c980 r8:8020029c r7:00000036 r6:0012ed04 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..