WARNING: locking bug in wg_packet_decrypt

Title	Replies (including bot)	Last reply
[syzbot] [wireguard?] WARNING: locking bug in wg_packet_decrypt_worker (2)	0 (1)	2024/12/23 13:38

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	WARNING: locking bug in wg_packet_decrypt_worker wireguard				2	191d	205d	0/28	auto-obsoleted due to no activity on 2024/09/26 08:40

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DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 0 PID: 5889 at kernel/locking/lockdep.c:232 hlock_class kernel/locking/lockdep.c:232 [inline]
WARNING: CPU: 0 PID: 5889 at kernel/locking/lockdep.c:232 check_wait_context kernel/locking/lockdep.c:4850 [inline]
WARNING: CPU: 0 PID: 5889 at kernel/locking/lockdep.c:232 __lock_acquire+0x564/0x2100 kernel/locking/lockdep.c:5176
Modules linked in:
CPU: 0 UID: 0 PID: 5889 Comm: kworker/0:5 Not tainted 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Workqueue: wg-crypt-wg2 wg_packet_decrypt_worker
RIP: 0010:hlock_class kernel/locking/lockdep.c:232 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4850 [inline]
RIP: 0010:__lock_acquire+0x564/0x2100 kernel/locking/lockdep.c:5176
Code: 00 00 83 3d 21 f4 9e 0e 00 75 23 90 48 c7 c7 00 96 0a 8c 48 c7 c6 00 99 0a 8c e8 67 5d e5 ff 48 ba 00 00 00 00 00 fc ff df 90 <0f> 0b 90 90 90 31 db 48 81 c3 c4 00 00 00 48 89 d8 48 c1 e8 03 0f
RSP: 0018:ffffc9000488f450 EFLAGS: 00010046
RAX: d0f6e83a7c789700 RBX: 0000000000001201 RCX: ffff88802ede3c00
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000041201 R08: ffffffff81601a42 R09: 1ffff110170c519a
R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff88802ede46c4
R13: 000000000000000a R14: 1ffff11005dbc8ea R15: ffff88802ede4750
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30112ff8 CR3: 000000000e736000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
 _raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 ptr_ring_consume_bh include/linux/ptr_ring.h:365 [inline]
 wg_packet_decrypt_worker+0xcf/0xd80 drivers/net/wireguard/receive.c:499
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>