ubi0: attaching mtd0
ubi0: scanning is finished
Oops: general protection fault, probably for non-canonical address 0xdffffc0000002002: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000000010010-0x0000000000010017]
CPU: 1 UID: 0 PID: 15269 Comm: syz.4.2550 Not tainted 6.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:notifier_chain_register+0xc1/0x420 kernel/notifier.c:27
Code: 00 00 00 e8 11 30 34 00 48 8b 04 24 0f b6 00 84 c0 74 08 3c 03 0f 8e ff 02 00 00 48 8d 7b 10 45 8b 65 10 48 89 f8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 74 08 3c 03 0f 8e d5 02 00 00 8b 6b 10 44 89
RSP: 0018:ffffc9000b8afa60 EFLAGS: 00010203
RAX: 0000000000002002 RBX: 0000000000010005 RCX: ffffffff8165e487
RDX: ffff8880602ec880 RSI: ffffffff8165e42f RDI: 0000000000010015
RBP: 0000000000010005 R08: 0000000000000004 R09: 0000000000000001
R10: 0000000000010005 R11: 000000000001c808 R12: 0000000000000001
R13: ffff88805b0ad8c8 R14: ffff88802cd058d0 R15: dffffc0000000000
FS:  00007f91aaa466c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fd0f000 CR3: 0000000034bfa000 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: 0033:0x7f91a9b85d29
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:00007f91aaa46038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f91a9d76080 RCX: 00007f91a9b85d29
RDX: 0000000020000502 RSI: 0000000040186f40 RDI: 0000000000000003
RBP: 00007f91a9c01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f91a9d76080 R15: 00007ffc79726338
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:notifier_chain_register+0xc1/0x420 kernel/notifier.c:27
Code: 00 00 00 e8 11 30 34 00 48 8b 04 24 0f b6 00 84 c0 74 08 3c 03 0f 8e ff 02 00 00 48 8d 7b 10 45 8b 65 10 48 89 f8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 74 08 3c 03 0f 8e d5 02 00 00 8b 6b 10 44 89
RSP: 0018:ffffc9000b8afa60 EFLAGS: 00010203
RAX: 0000000000002002 RBX: 0000000000010005 RCX: ffffffff8165e487
RDX: ffff8880602ec880 RSI: ffffffff8165e42f RDI: 0000000000010015
RBP: 0000000000010005 R08: 0000000000000004 R09: 0000000000000001
R10: 0000000000010005 R11: 000000000001c808 R12: 0000000000000001
R13: ffff88805b0ad8c8 R14: ffff88802cd058d0 R15: dffffc0000000000
FS:  00007f91aaa466c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f91aaa24f98 CR3: 0000000034bfa000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 e8                	add    %ch,%al
   4:	11 30                	adc    %esi,(%rax)
   6:	34 00                	xor    $0x0,%al
   8:	48 8b 04 24          	mov    (%rsp),%rax
   c:	0f b6 00             	movzbl (%rax),%eax
   f:	84 c0                	test   %al,%al
  11:	74 08                	je     0x1b
  13:	3c 03                	cmp    $0x3,%al
  15:	0f 8e ff 02 00 00    	jle    0x31a
  1b:	48 8d 7b 10          	lea    0x10(%rbx),%rdi
  1f:	45 8b 65 10          	mov    0x10(%r13),%r12d
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	74 08                	je     0x3b
  33:	3c 03                	cmp    $0x3,%al
  35:	0f 8e d5 02 00 00    	jle    0x310
  3b:	8b 6b 10             	mov    0x10(%rbx),%ebp
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89