==================================================================
BUG: KCSAN: data-race in __list_add_valid / nfc_llcp_unregister_device
write to 0xffff8881369b6008 of 8 bytes by task 32524 on cpu 1:
list_del include/linux/list.h:150 [inline]
nfc_llcp_remove_local net/nfc/llcp_core.c:306 [inline]
nfc_llcp_unregister_device+0xba/0x170 net/nfc/llcp_core.c:1646
nfc_unregister_device+0xe6/0x130 net/nfc/core.c:1179
nci_unregister_device+0x14c/0x160 net/nfc/nci/core.c:1303
virtual_ncidev_close+0x30/0x50 drivers/nfc/virtual_ncidev.c:163
__fput+0x303/0x600 fs/file_table.c:384
____fput+0x15/0x20 fs/file_table.c:412
task_work_run+0x135/0x1a0 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd1/0xe0 kernel/entry/common.c:171
exit_to_user_mode_prepare+0x6c/0xb0 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x26/0x140 kernel/entry/common.c:297
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
read to 0xffff8881369b6008 of 8 bytes by task 32529 on cpu 0:
__list_add_valid+0x25/0xb0 lib/list_debug.c:27
__list_add include/linux/list.h:69 [inline]
list_add include/linux/list.h:88 [inline]
nfc_llcp_register_device+0x3d1/0x440 net/nfc/llcp_core.c:1639
nfc_register_device+0x67/0x190 net/nfc/core.c:1124
nci_register_device+0x4e6/0x570 net/nfc/nci/core.c:1257
virtual_ncidev_open+0xdc/0x140 drivers/nfc/virtual_ncidev.c:148
misc_open+0x203/0x240 drivers/char/misc.c:165
chrdev_open+0x34f/0x3c0 fs/char_dev.c:414
do_dentry_open+0x5cd/0xaf0 fs/open.c:914
vfs_open+0x4a/0x50 fs/open.c:1048
do_open fs/namei.c:3636 [inline]
path_openat+0x17f2/0x1d10 fs/namei.c:3793
do_filp_open+0xf6/0x200 fs/namei.c:3820
do_sys_openat2+0xab/0x110 fs/open.c:1407
do_sys_open fs/open.c:1422 [inline]
__do_sys_openat fs/open.c:1438 [inline]
__se_sys_openat fs/open.c:1433 [inline]
__x64_sys_openat+0xf3/0x120 fs/open.c:1433
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
value changed: 0xffffffff85eb4f30 -> 0xdead000000000122
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 32529 Comm: syz-executor.0 Not tainted 6.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
==================================================================
list_add corruption. next->prev should be prev (ffffffff85eb4f30), but was dead000000000122. (next=ffff8881369b6000).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:29!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 0 PID: 32529 Comm: syz-executor.0 Not tainted 6.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:__list_add_valid+0x95/0xb0 lib/list_debug.c:27
Code: 4d 5c 85 e8 5d 1b 08 03 0f 0b 48 c7 c7 2d 4e 5c 85 e8 4f 1b 08 03 0f 0b 48 c7 c7 53 4e 5c 85 48 89 de 4c 89 f1 e8 3b 1b 08 03 <0f> 0b 48 c7 c7 a5 4e 5c 85 4c 89 f6 48 89 d9 e8 27 1b 08 03 0f 0b
RSP: 0018:ffffc9000d0ffa08 EFLAGS: 00010246
RAX: 0000000000000075 RBX: ffffffff85eb4f30 RCX: 9a84aabeb01afd00
RDX: ffffc9000630f000 RSI: 0000000000024533 RDI: 0000000000024534
RBP: 0000000000000000 R08: ffffffff811862fd R09: 0000000000000000
R10: 0001ffffffffffff R11: 0000000000000000 R12: ffff8881369b6000
R13: 0000000fffffffe0 R14: ffff8881369b6000 R15: ffff88817d493c00
FS: 00007efd5c3b9700(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1a4b8163e7 CR3: 0000000137fa6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
<TASK>
__list_add include/linux/list.h:69 [inline]
list_add include/linux/list.h:88 [inline]
nfc_llcp_register_device+0x3d1/0x440 net/nfc/llcp_core.c:1639
nfc_register_device+0x67/0x190 net/nfc/core.c:1124
nci_register_device+0x4e6/0x570 net/nfc/nci/core.c:1257
virtual_ncidev_open+0xdc/0x140 drivers/nfc/virtual_ncidev.c:148
misc_open+0x203/0x240 drivers/char/misc.c:165
chrdev_open+0x34f/0x3c0 fs/char_dev.c:414
do_dentry_open+0x5cd/0xaf0 fs/open.c:914
vfs_open+0x4a/0x50 fs/open.c:1048
do_open fs/namei.c:3636 [inline]
path_openat+0x17f2/0x1d10 fs/namei.c:3793
do_filp_open+0xf6/0x200 fs/namei.c:3820
do_sys_openat2+0xab/0x110 fs/open.c:1407
do_sys_open fs/open.c:1422 [inline]
__do_sys_openat fs/open.c:1438 [inline]
__se_sys_openat fs/open.c:1433 [inline]
__x64_sys_openat+0xf3/0x120 fs/open.c:1433
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7efd5d046389
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007efd5c3b9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007efd5d165f80 RCX: 00007efd5d046389
RDX: 0000000000000002 RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007efd5d091493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffa0342c3f R14: 00007efd5c3b9300 R15: 0000000000022000
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid+0x95/0xb0 lib/list_debug.c:27
Code: 4d 5c 85 e8 5d 1b 08 03 0f 0b 48 c7 c7 2d 4e 5c 85 e8 4f 1b 08 03 0f 0b 48 c7 c7 53 4e 5c 85 48 89 de 4c 89 f1 e8 3b 1b 08 03 <0f> 0b 48 c7 c7 a5 4e 5c 85 4c 89 f6 48 89 d9 e8 27 1b 08 03 0f 0b
RSP: 0018:ffffc9000d0ffa08 EFLAGS: 00010246
RAX: 0000000000000075 RBX: ffffffff85eb4f30 RCX: 9a84aabeb01afd00
RDX: ffffc9000630f000 RSI: 0000000000024533 RDI: 0000000000024534
RBP: 0000000000000000 R08: ffffffff811862fd R09: 0000000000000000
R10: 0001ffffffffffff R11: 0000000000000000 R12: ffff8881369b6000
R13: 0000000fffffffe0 R14: ffff8881369b6000 R15: ffff88817d493c00
FS: 00007efd5c3b9700(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1a4b8163e7 CR3: 0000000137fa6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600