ftl_cs: FTL header not found.
------------[ cut here ]------------
!rwb
WARNING: block/blk-wbt.c:785 at wbt_init_enable_default+0x18a/0x220 block/blk-wbt.c:785, CPU#0: syz.8.3248/19259
Modules linked in:
CPU: 0 UID: 0 PID: 19259 Comm: syz.8.3248 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:wbt_init_enable_default+0x18a/0x220 block/blk-wbt.c:785
Code: 1c 84 c0 0f 85 8d 00 00 00 41 21 2e eb 1f e8 9d ee 24 fd eb 18 e8 96 ee 24 fd eb 0d e8 8f ee 24 fd 4c 89 ff e8 77 1c 83 fd 90 <0f> 0b 90 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d e9 ab 80 6f fc
RSP: 0018:ffffc9000437f170 EFLAGS: 00010282
RAX: 2df1efee75d7b500 RBX: 1ffff110069a3904 RCX: 0000000000000046
RDX: 0000000000000006 RSI: ffffffff8def9650 RDI: ffffffff8c27cb80
RBP: dffffc0000000000 R08: ffffffff9011beb7 R09: 1ffffffff20237d6
R10: dffffc0000000000 R11: fffffbfff20237d7 R12: ffff888034d1c820
R13: 0000000000000000 R14: ffff88805708f000 R15: ffff888034d1c800
FS:  00007ff1db9f66c0(0000) GS:ffff88812545a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c31231c CR3: 00000000879f1000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 blk_register_queue+0x382/0x430 block/blk-sysfs.c:949
 __add_disk+0x677/0xd50 block/genhd.c:528
 add_disk_fwnode+0xfb/0x480 block/genhd.c:597
 add_mtd_blktrans_dev+0xe6f/0x14b0 drivers/mtd/mtd_blkdevs.c:382
 mtdblock_add_mtd+0x18a/0x240 drivers/mtd/mtdblock.c:333
 blktrans_notify_add+0x9f/0xf0 drivers/mtd/mtd_blkdevs.c:464
 add_mtd_device+0x10d6/0x1750 drivers/mtd/mtdcore.c:820
 mtd_add_partition+0x316/0x510 drivers/mtd/mtdpart.c:279
 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+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff1dd79c799
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:00007ff1db9f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff1dda15fa0 RCX: 00007ff1dd79c799
RDX: 0000200000000180 RSI: 0000000000001269 RDI: 0000000000000004
RBP: 00007ff1dd832c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff1dda16038 R14: 00007ff1dda15fa0 R15: 00007ffd3cbff858
 </TASK>