slab kmalloc-8k start ffff88807cd64000 pointer offset 80 size 8192
list_del corruption. prev->next should be ffffc90003e0f860, but was ffff88807cd64050. (prev=ffff88807cd64050)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:64!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 7167 Comm: syz.2.447 Not tainted 6.15.0-rc5-syzkaller-00022-g01f95500a162 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62
Code: e8 2b 7c 43 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 4c 4c 63 fd 49 8b 17 48 c7 c7 c0 d6 c1 8b 48 89 de 4c 89 f9 e8 b7 18 69 fc 90 <0f> 0b 4c 89 f7 e8 fc 7b 43 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 1d
RSP: 0018:ffffc90003e0f750 EFLAGS: 00010046
RAX: 000000000000006d RBX: ffffc90003e0f860 RCX: 9bc2fb9c8dc67e00
RDX: ffffc9000c759000 RSI: 0000000000006c22 RDI: 0000000000006c23
RBP: ffffc90003e0f910 R08: ffff8880b8923e93 R09: 1ffff110171247d2
R10: dffffc0000000000 R11: ffffed10171247d3 R12: 1ffff1100f9ac80a
R13: dffffc0000000000 R14: ffff88807cd64050 R15: ffff88807cd64050
FS:  0000000000000000(0000) GS:ffff8881261cb000(0063) knlGS:00000000f50beb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000c36abc5 CR3: 0000000064ab8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_del include/linux/list.h:229 [inline]
 __mutex_remove_waiter kernel/locking/mutex.c:206 [inline]
 __mutex_lock_common kernel/locking/mutex.c:714 [inline]
 __mutex_lock+0x913/0xe80 kernel/locking/mutex.c:746
 az6007_i2c_xfer+0x84/0xb90 drivers/media/usb/dvb-usb-v2/az6007.c:755
 __i2c_transfer+0x871/0x2170 drivers/i2c/i2c-core-base.c:-1
 i2c_transfer+0x25b/0x3a0 drivers/i2c/i2c-core-base.c:2315
 i2c_transfer_buffer_flags+0x105/0x190 drivers/i2c/i2c-core-base.c:2343
 i2c_master_send include/linux/i2c.h:109 [inline]
 i2cdev_write+0x112/0x1b0 drivers/i2c/i2c-dev.c:183
 vfs_write+0x27b/0xa90 fs/read_write.c:682
 ksys_write+0x145/0x250 fs/read_write.c:736
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x34/0x80 arch/x86/entry/syscall_32.c:331
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf70ce539
Code: 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f50be55c EFLAGS: 00000206 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62
Code: e8 2b 7c 43 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 4c 4c 63 fd 49 8b 17 48 c7 c7 c0 d6 c1 8b 48 89 de 4c 89 f9 e8 b7 18 69 fc 90 <0f> 0b 4c 89 f7 e8 fc 7b 43 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 1d
RSP: 0018:ffffc90003e0f750 EFLAGS: 00010046
RAX: 000000000000006d RBX: ffffc90003e0f860 RCX: 9bc2fb9c8dc67e00
RDX: ffffc9000c759000 RSI: 0000000000006c22 RDI: 0000000000006c23
RBP: ffffc90003e0f910 R08: ffff8880b8923e93 R09: 1ffff110171247d2
R10: dffffc0000000000 R11: ffffed10171247d3 R12: 1ffff1100f9ac80a
R13: dffffc0000000000 R14: ffff88807cd64050 R15: ffff88807cd64050
FS:  0000000000000000(0000) GS:ffff8881261cb000(0063) knlGS:00000000f50beb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000000c36abc5 CR3: 0000000064ab8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	03 74 b4 01          	add    0x1(%rsp,%rsi,4),%esi
   4:	10 07                	adc    %al,(%rdi)
   6:	03 74 b0 01          	add    0x1(%rax,%rsi,4),%esi
   a:	10 08                	adc    %cl,(%rax)
   c:	03 74 d8 01          	add    0x1(%rax,%rbx,8),%esi
  20:	00 51 52             	add    %dl,0x52(%rcx)
  23:	55                   	push   %rbp
  24:	89 e5                	mov    %esp,%ebp
  26:	0f 34                	sysenter
  28:	cd 80                	int    $0x80
* 2a:	5d                   	pop    %rbp <-- trapping instruction
  2b:	5a                   	pop    %rdx
  2c:	59                   	pop    %rcx
  2d:	c3                   	ret
  2e:	90                   	nop
  2f:	90                   	nop
  30:	90                   	nop
  31:	90                   	nop
  32:	90                   	nop
  33:	90                   	nop
  34:	90                   	nop
  35:	90                   	nop
  36:	90                   	nop
  37:	90                   	nop
  38:	90                   	nop
  39:	90                   	nop
  3a:	90                   	nop
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop