syzbot

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VFS: brelse: Trying to free free buffer
WARNING: CPU: 1 PID: 4165 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline]
WARNING: CPU: 1 PID: 4165 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline]
WARNING: CPU: 1 PID: 4165 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline]
WARNING: CPU: 1 PID: 4165 at fs/buffer.c:1148 invalidate_bh_lru+0xf8/0x1a0 fs/buffer.c:1407
Modules linked in:
CPU: 1 PID: 4165 Comm: udevd Not tainted 5.15.177-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:__brelse fs/buffer.c:1148 [inline]
RIP: 0010:brelse include/linux/buffer_head.h:325 [inline]
RIP: 0010:__invalidate_bh_lrus fs/buffer.c:1394 [inline]
RIP: 0010:invalidate_bh_lru+0xf8/0x1a0 fs/buffer.c:1407
Code: 00 e8 4c 61 e4 ff f0 ff 0b eb 21 e8 42 77 9a ff 41 80 3c 2e 00 75 26 eb 2c e8 34 77 9a ff 48 c7 c7 a0 6f b7 8a e8 c8 10 66 ff <0f> 0b 48 bd 00 00 00 00 00 fc ff df 41 80 3c 2e 00 74 08 4c 89 ff
RSP: 0018:ffffc90002dafa88 EFLAGS: 00010046
RAX: 68c16f7ec4e3fe00 RBX: ffff88806f097148 RCX: ffff888073c5bb80
RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8166aa8c R09: ffffed10171e4f24
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b8f36538
R13: 0000000000000000 R14: 1ffff110171e6ca7 R15: ffff8880b8f36538
FS:  00007fa06c234c80(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd02b38fb8 CR3: 0000000020278000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 smp_call_function_many_cond+0x8fa/0xd90 kernel/smp.c:960
 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1135
 kill_bdev block/bdev.c:76 [inline]
 blkdev_flush_mapping+0x178/0x340 block/bdev.c:659
 blkdev_put_whole block/bdev.c:690 [inline]
 blkdev_put+0x4f1/0x790 block/bdev.c:954
 blkdev_close+0x7c/0xa0 block/fops.c:475
 __fput+0x3fe/0x8e0 fs/file_table.c:280
 task_work_run+0x129/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa06c3600a8
Code: 48 8b 05 83 9d 0d 00 64 c7 00 16 00 00 00 83 c8 ff 48 83 c4 20 5b c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 5b 48 8b 15 51 9d 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffd02b3a978 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007fa06c234ae0 RCX: 00007fa06c3600a8
RDX: 000056348de3b2f7 RSI: 00007ffd02b3a178 RDI: 0000000000000008
RBP: 00005631eefd56e0 R08: 0000000000000006 R09: 773fc404fa6f0d2e
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000002
R13: 00005631eefc6a50 R14: 0000000000000008 R15: 00005631eefb5910
 </TASK>