------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 1 PID: 5931 at fs/buffer.c:1229 __brelse fs/buffer.c:1229 [inline]
WARNING: CPU: 1 PID: 5931 at fs/buffer.c:1229 brelse include/linux/buffer_head.h:324 [inline]
WARNING: CPU: 1 PID: 5931 at fs/buffer.c:1229 __invalidate_bh_lrus fs/buffer.c:1498 [inline]
WARNING: CPU: 1 PID: 5931 at fs/buffer.c:1229 invalidate_bh_lrus_cpu+0x1ba/0x280 fs/buffer.c:1544
Modules linked in:
CPU: 1 UID: 0 PID: 5931 Comm: kworker/1:7 Not tainted 6.12.0-next-20241122-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: mm_percpu_wq lru_add_drain_per_cpu
RIP: 0010:__brelse fs/buffer.c:1229 [inline]
RIP: 0010:brelse include/linux/buffer_head.h:324 [inline]
RIP: 0010:__invalidate_bh_lrus fs/buffer.c:1498 [inline]
RIP: 0010:invalidate_bh_lrus_cpu+0x1ba/0x280 fs/buffer.c:1544
Code: df be 04 00 00 00 e8 c5 eb da ff f0 ff 0b eb 1e e8 3b f8 6f ff eb 21 e8 34 f8 6f ff 90 48 c7 c7 20 e1 18 8c e8 b7 96 30 ff 90 <0f> 0b 90 90 49 bf 00 00 00 00 00 fc ff df 48 8b 5c 24 10 43 80 3c
RSP: 0018:ffffc90004547ac0 EFLAGS: 00010046
RAX: 55f1b10f5020f800 RBX: ffff8880606e1230 RCX: ffff88802f135a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004547b78 R08: ffffffff81601b32 R09: 1ffff110170e519a
R10: dffffc0000000000 R11: ffffed10170e519b R12: 0000000000000020
R13: ffff8880b8739858 R14: 1ffff110170e730b R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0a19e6d680 CR3: 000000005a240000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lru_add_and_bh_lrus_drain mm/swap.c:714 [inline]
 lru_add_drain_per_cpu+0x21a/0x3f0 mm/swap.c:733
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>