syzbot

ubi0: attaching mtd0
ubi0: scanning is finished
------------[ cut here ]------------
notifier callback ubi_wl_reboot_notifier already registered
WARNING: CPU: 0 PID: 6162 at kernel/notifier.c:23 notifier_chain_register kernel/notifier.c:23 [inline]
WARNING: CPU: 0 PID: 6162 at kernel/notifier.c:23 notifier_chain_register+0x157/0x420 kernel/notifier.c:17
Modules linked in:
CPU: 0 UID: 0 PID: 6162 Comm: syz.0.62 Not tainted 6.13.0-rc6-syzkaller-00059-g643e2e259c2b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:notifier_chain_register kernel/notifier.c:23 [inline]
RIP: 0010:notifier_chain_register+0x157/0x420 kernel/notifier.c:17
Code: 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 c2 02 00 00 49 8b 75 00 48 c7 c7 00 17 6c 8b e8 7a 6a f4 ff 90 <0f> 0b 90 90 bb ef ff ff ff e8 9b 33 34 00 89 d8 48 83 c4 18 5b 5d
RSP: 0018:ffffc9000bc0fa60 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888025b198c8 RCX: ffffc9000e85e000
RDX: 0000000000080000 RSI: ffffffff815a5146 RDI: 0000000000000001
RBP: 000000007fffffff R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
R13: ffff888025b198c8 R14: ffffffff8fa2cd88 R15: dffffc0000000000
FS:  00007fcfaebb16c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c351438 CR3: 00000000364d8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __blocking_notifier_chain_register kernel/notifier.c:264 [inline]
 blocking_notifier_chain_register+0x76/0xd0 kernel/notifier.c:282
 ubi_wl_init+0x1018/0x17b0 drivers/mtd/ubi/wl.c:1960
 ubi_attach+0x1b92/0x4c00 drivers/mtd/ubi/attach.c:1605
 ubi_attach_mtd_dev+0x158f/0x3590 drivers/mtd/ubi/build.c:1004
 ctrl_cdev_ioctl+0x339/0x3d0 drivers/mtd/ubi/cdev.c:1043
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcfadd85d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcfaebb1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fcfadf76080 RCX: 00007fcfadd85d29
RDX: 0000000020000502 RSI: 0000000040186f40 RDI: 0000000000000006
RBP: 00007fcfade01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fcfadf76080 R15: 00007ffe58825028
 </TASK>