BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1523
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 5265, name: syz.1.154
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
2 locks held by syz.1.154/5265:
 #0: ffff88810c6ffcc8 (&disk->open_mutex){....}-{3:3}, at: bdev_open+0x73/0x360 block/bdev.c:903
 #1: ffffffff83b80d58 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 #1: ffffffff83b80d58 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffffff83b80d58 (rcu_read_lock){....}-{1:2}, at: blk_mq_flush_plug_list+0x687/0x900 block/blk-mq.c:2904
CPU: 0 UID: 0 PID: 5265 Comm: syz.1.154 Not tainted 6.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x3e/0xe0 lib/dump_stack.c:120
 __might_resched+0x1a4/0x1c0 kernel/sched/core.c:8766
 down_read+0x34/0x470 kernel/locking/rwsem.c:1523
 i_mmap_lock_read include/linux/fs.h:565 [inline]
 unmap_mapping_folio+0x76/0xe0 mm/memory.c:3887
 folio_unmap_invalidate+0x5d/0x270 mm/truncate.c:557
 folio_end_dropbehind_write mm/filemap.c:1609 [inline]
 folio_end_writeback+0xe6/0x1d0 mm/filemap.c:1654
 end_bio_bh_io_sync+0x23/0x40 fs/buffer.c:2766
 blk_update_request+0x178/0x390 block/blk-mq.c:983
 blk_mq_end_request+0x13/0x30 block/blk-mq.c:1145
 nullb_complete_cmd drivers/block/null_blk/main.c:1354 [inline]
 null_handle_cmd drivers/block/null_blk/main.c:1405 [inline]
 null_queue_rq+0x2e5/0x320 drivers/block/null_blk/main.c:1645
 null_queue_rqs+0x7d/0xd0 drivers/block/null_blk/main.c:1659
 __blk_mq_flush_plug_list block/blk-mq.c:2825 [inline]
 blk_mq_flush_plug_list+0x6bf/0x900 block/blk-mq.c:2904
 __blk_flush_plug+0xdf/0x130 block/blk-core.c:1214
 blk_finish_plug+0x24/0x40 block/blk-core.c:1241
 blkdev_writepages+0x96/0xc0 block/fops.c:460
 do_writepages+0xdc/0x320 mm/page-writeback.c:2687
 filemap_fdatawrite_wbc mm/filemap.c:389 [inline]
 __filemap_fdatawrite_range mm/filemap.c:422 [inline]
 filemap_write_and_wait_range+0xb0/0x150 mm/filemap.c:694
 bdev_disk_changed+0x88/0x780 block/partitions/core.c:656
 blkdev_get_whole+0xd2/0x120 block/bdev.c:706
 bdev_open+0x189/0x360 block/bdev.c:915
 bdev_file_open_by_dev+0x11c/0x140 block/bdev.c:1017
 disk_scan_partitions+0x84/0xc0 block/genhd.c:374
 blkdev_common_ioctl+0xb85/0xed0 block/ioctl.c:617
 blkdev_ioctl+0x291/0x310 block/ioctl.c:687
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0x68/0xb0 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f356d58cda9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f356e3cb038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f356d7a5fa0 RCX: 00007f356d58cda9
RDX: 0000000000000000 RSI: 000000000000125f RDI: 0000000000000004
RBP: 00007f356d60e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f356d7a5fa0 R15: 00007fffc953dc98
 </TASK>