syzbot

ubi0: attaching mtd0
ubi0: scanning is finished
------------[ cut here ]------------
notifier callback ubi_wl_reboot_notifier already registered
WARNING: CPU: 0 PID: 9761 at kernel/notifier.c:24 notifier_chain_register+0x29b/0x3f0 kernel/notifier.c:23
Modules linked in:
CPU: 0 UID: 0 PID: 9761 Comm: syz.4.816 Not tainted 6.13.0-syzkaller-07632-gaa22f4da2a46 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:notifier_chain_register+0x29b/0x3f0 kernel/notifier.c:23
Code: cc 33 00 90 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 25 e9 97 00 48 8b 33 48 c7 c7 00 fc 09 8c e8 86 7b f4 ff 90 <0f> 0b 90 90 bb ef ff ff ff eb b4 e8 45 cc 33 00 90 0f 0b 90 e9 36
RSP: 0018:ffffc90010a27948 EFLAGS: 00010246
RAX: 178d23fc7c33ac00 RBX: ffff888029b558c8 RCX: 0000000000080000
RDX: ffffc9000cdd9000 RSI: 00000000000081e8 RDI: 00000000000081e9
RBP: 0000000000000001 R08: ffffffff818019a2 R09: fffffbfff1cfa5a4
R10: dffffc0000000000 R11: fffffbfff1cfa5a4 R12: dffffc0000000000
R13: ffff888029b558c8 R14: dffffc0000000000 R15: ffffffff8f971ea8
FS:  00007f5c072c06c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3edd36 CR3: 000000005ff88000 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+0x61/0xc0 kernel/notifier.c:282
 ubi_wl_init+0x3396/0x3720 drivers/mtd/ubi/wl.c:1960
 ubi_attach+0x3e01/0x5b80 drivers/mtd/ubi/attach.c:1605
 ubi_attach_mtd_dev+0x1a3a/0x3540 drivers/mtd/ubi/build.c:1004
 ctrl_cdev_ioctl+0x346/0x570 drivers/mtd/ubi/cdev.c:1043
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5c0638cd29
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:00007f5c072c0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f5c065a5fa0 RCX: 00007f5c0638cd29
RDX: 0000000020000502 RSI: 0000000040186f40 RDI: 000000000000000b
RBP: 00007f5c0640e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5c065a5fa0 R15: 00007ffcf0097e58
 </TASK>