WARNING: CPU: 1 PID: 6880 at fs/buffer.c:1235 __brelse fs/buffer.c:1235 [inline]
WARNING: CPU: 1 PID: 6880 at fs/buffer.c:1235 __brelse+0x6d/0xb0 fs/buffer.c:1229
Modules linked in:
CPU: 1 PID: 6880 Comm: syz-executor.1 Not tainted 6.9.0-rc3-syzkaller-00399-g72374d71c315 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__brelse fs/buffer.c:1235 [inline]
RIP: 0010:__brelse+0x6d/0xb0 fs/buffer.c:1229
Code: 84 d2 75 52 44 8b 63 60 31 ff 44 89 e6 e8 bb ac 82 ff 45 85 e4 75 20 e8 d1 b1 82 ff 90 48 c7 c7 60 f3 1d 8b e8 54 20 45 ff 90 <0f> 0b 90 90 5b 5d 41 5c e9 b6 b1 82 ff e8 b1 b1 82 ff be 04 00 00
RSP: 0018:ffffc9000394fb68 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffff888034d7b000 RCX: ffffc90008d03000
RDX: 0000000000040000 RSI: ffffffff81503356 RDI: 0000000000000001
RBP: ffff888034d7b060 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888034d7b000 R14: dffffc0000000000 R15: ffff88806b33fc00
FS:  00007f99ebb606c0(0000) GS:ffff88806b300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f99e0c0f000 CR3: 0000000024b88000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 brelse include/linux/buffer_head.h:309 [inline]
 __invalidate_bh_lrus fs/buffer.c:1487 [inline]
 invalidate_bh_lru+0xa2/0x190 fs/buffer.c:1500
 csd_do_func kernel/smp.c:133 [inline]
 smp_call_function_many_cond+0x10af/0x1420 kernel/smp.c:846
 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1023
 kill_bdev block/bdev.c:84 [inline]
 blkdev_flush_mapping+0x13a/0x310 block/bdev.c:644
 blkdev_put_whole+0xc4/0xf0 block/bdev.c:675
 bdev_release+0x487/0x710 block/bdev.c:1066
 blkdev_release+0x15/0x20 block/fops.c:628
 __fput+0x270/0xb80 fs/file_table.c:422
 task_work_run+0x14e/0x250 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x278/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xdc/0x260 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f99eae7f56a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f99ebb5fef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffea RBX: 00007f99ebb5ff80 RCX: 00007f99eae7f56a
RDX: 0000000020000080 RSI: 0000000020000000 RDI: 00007f99ebb5ff40
RBP: 0000000020000080 R08: 00007f99ebb5ff80 R09: 0000000000004000
R10: 0000000000004000 R11: 0000000000000202 R12: 0000000020000000
R13: 00007f99ebb5ff40 R14: 0000000000009e81 R15: 0000000020000140
 </TASK>