------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 1 PID: 8810 at fs/buffer.c:1229 __brelse fs/buffer.c:1229 [inline]
WARNING: CPU: 1 PID: 8810 at fs/buffer.c:1229 brelse include/linux/buffer_head.h:324 [inline]
WARNING: CPU: 1 PID: 8810 at fs/buffer.c:1229 __invalidate_bh_lrus fs/buffer.c:1498 [inline]
WARNING: CPU: 1 PID: 8810 at fs/buffer.c:1229 invalidate_bh_lrus_cpu+0x148/0x1e4 fs/buffer.c:1544
Modules linked in:
CPU: 1 UID: 0 PID: 8810 Comm: kworker/1:5 Tainted: G        W          6.13.0-rc6-syzkaller-g577490b6abb9 #0
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: mm_percpu_wq lru_add_drain_per_cpu
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __brelse fs/buffer.c:1229 [inline]
pc : brelse include/linux/buffer_head.h:324 [inline]
pc : __invalidate_bh_lrus fs/buffer.c:1498 [inline]
pc : invalidate_bh_lrus_cpu+0x148/0x1e4 fs/buffer.c:1544
lr : __brelse fs/buffer.c:1229 [inline]
lr : brelse include/linux/buffer_head.h:324 [inline]
lr : __invalidate_bh_lrus fs/buffer.c:1498 [inline]
lr : invalidate_bh_lrus_cpu+0x148/0x1e4 fs/buffer.c:1544
sp : ffff80009c227a70
x29: ffff80009c227a70 x28: ffff80008f98d600 x27: 1fffe0001f4ed3ca
x26: 0000000000000001 x25: 00000000ffffffff x24: ffff0001b3819998
x23: 0000000000000008 x22: dfff800000000000 x21: 0000000000000000
x20: ffff0000d94785d0 x19: ffff80008b832120 x18: 0000000000000008
x17: 0000000000000000 x16: ffff8000832776d4 x15: 0000000000000001
x14: 1fffe000367012ea x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000002 x10: 0000000000ff0100 x9 : c31e79d7c5be3800
x8 : c31e79d7c5be3800 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80009c227198 x4 : ffff80008fa80460 x3 : ffff80008073e590
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
 __brelse fs/buffer.c:1229 [inline] (P)
 brelse include/linux/buffer_head.h:324 [inline] (P)
 __invalidate_bh_lrus fs/buffer.c:1498 [inline] (P)
 invalidate_bh_lrus_cpu+0x148/0x1e4 fs/buffer.c:1544 (P)
 lru_add_and_bh_lrus_drain mm/swap.c:714 [inline]
 lru_add_drain_per_cpu+0x114/0x18c mm/swap.c:733
 process_one_work+0x7a8/0x15cc kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x97c/0xeec kernel/workqueue.c:3391
 kthread+0x288/0x310 kernel/kthread.c:389
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862
irq event stamp: 16970
hardirqs last  enabled at (16969): [<ffff80008b6c655c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (16969): [<ffff80008b6c655c>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (16970): [<ffff800080dfd4b0>] invalidate_bh_lrus_cpu+0x40/0x1e4 fs/buffer.c:1542
softirqs last  enabled at (16952): [<ffff8000856d7488>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (16952): [<ffff8000856d7488>] ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline]
softirqs last  enabled at (16952): [<ffff8000856d7488>] wg_packet_encrypt_worker+0x11b4/0x1244 drivers/net/wireguard/send.c:293
softirqs last disabled at (16950): [<ffff8000856d723c>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (16950): [<ffff8000856d723c>] ptr_ring_consume_bh include/linux/ptr_ring.h:365 [inline]
softirqs last disabled at (16950): [<ffff8000856d723c>] wg_packet_encrypt_worker+0xf68/0x1244 drivers/net/wireguard/send.c:293
---[ end trace 0000000000000000 ]---