list_del corruption. prev->next should be ffffc9000334fa20, but was ffff88802601c050
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4484 Comm: syz.2.71 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__list_del_entry_valid+0x107/0x120 lib/list_debug.c:59
Code: 48 89 de e8 0b 01 bf 05 0f 0b 48 c7 c7 80 97 59 8a 48 89 de e8 fa 00 bf 05 0f 0b 48 c7 c7 e0 97 59 8a 48 89 de e8 e9 00 bf 05 <0f> 0b 48 c7 c7 40 98 59 8a 48 89 de e8 d8 00 bf 05 0f 0b 00 00 cc
RSP: 0018:ffffc9000334f918 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffffc9000334fa20 RCX: 45004007ae65ec00
RDX: ffffc9000ced1000 RSI: 0000000000004fbc RDI: 0000000000004fbd
RBP: ffffc9000334fad0 R08: dffffc0000000000 R09: ffffed10172267a8
R10: ffffed10172267a8 R11: 1ffff110172267a7 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88802601c050 R15: ffff88802601c050
FS:  00007f97937e36c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32719ff8 CR3: 000000005ef1e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry include/linux/list.h:132 [inline]
 list_del include/linux/list.h:146 [inline]
 __mutex_remove_waiter kernel/locking/mutex.c:212 [inline]
 __mutex_lock_common+0x1211/0x2390 kernel/locking/mutex.c:699
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_interruptible_nested+0x17/0x20 kernel/locking/mutex.c:765
 az6007_i2c_xfer+0x82/0x1320 drivers/media/usb/dvb-usb-v2/az6007.c:755
 __i2c_transfer+0x864/0x2060 drivers/i2c/i2c-core-base.c:-1
 i2c_transfer+0x24c/0x390 drivers/i2c/i2c-core-base.c:2330
 i2cdev_ioctl_rdwr+0x3da/0x6c0 drivers/i2c/i2c-dev.c:297
 i2cdev_ioctl+0x5ba/0x750 drivers/i2c/i2c-dev.c:458
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f979557bbe9
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:00007f97937e3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f97957a2fa0 RCX: 00007f979557bbe9
RDX: 00002000000001c0 RSI: 0000000000000707 RDI: 0000000000000004
RBP: 00007f97955fee19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f97957a3038 R14: 00007f97957a2fa0 R15: 00007fff4bcdea98
 </TASK>
Modules linked in:
---[ end trace cd2f0d5eae0648ba ]---
RIP: 0010:__list_del_entry_valid+0x107/0x120 lib/list_debug.c:59
Code: 48 89 de e8 0b 01 bf 05 0f 0b 48 c7 c7 80 97 59 8a 48 89 de e8 fa 00 bf 05 0f 0b 48 c7 c7 e0 97 59 8a 48 89 de e8 e9 00 bf 05 <0f> 0b 48 c7 c7 40 98 59 8a 48 89 de e8 d8 00 bf 05 0f 0b 00 00 cc
RSP: 0018:ffffc9000334f918 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffffc9000334fa20 RCX: 45004007ae65ec00
RDX: ffffc9000ced1000 RSI: 0000000000004fbc RDI: 0000000000004fbd
RBP: ffffc9000334fad0 R08: dffffc0000000000 R09: ffffed10172267a8
R10: ffffed10172267a8 R11: 1ffff110172267a7 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88802601c050 R15: ffff88802601c050
FS:  00007f97937e36c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32719ff8 CR3: 000000005ef1e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400