syz-executor.4 (6153): drop_caches: 1 ntfs: volume version 3.1. syz-executor.4 (6153): drop_caches: 1 ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ kworker/u4:9/19411 is trying to acquire lock: 0000000026a495c1 (&rl->lock){++++}, at: ntfs_read_block fs/ntfs/aops.c:265 [inline] 0000000026a495c1 (&rl->lock){++++}, at: ntfs_readpage+0x1909/0x21b0 fs/ntfs/aops.c:452 but task is already holding lock: 000000004433cb37 (&ni->mrec_lock){+.+.}, at: map_mft_record+0x3c/0xc70 fs/ntfs/mft.c:168 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&ni->mrec_lock){+.+.}: map_mft_record+0x3c/0xc70 fs/ntfs/mft.c:168 ntfs_attr_extend_allocation+0x236/0x34c0 fs/ntfs/attrib.c:1992 ntfs_prepare_file_for_write fs/ntfs/file.c:412 [inline] ntfs_file_write_iter+0x6c9/0x23b0 fs/ntfs/file.c:1949 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x51b/0x770 fs/read_write.c:487 vfs_write+0x1f3/0x540 fs/read_write.c:549 ksys_write+0x12b/0x2a0 fs/read_write.c:599 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&rl->lock){++++}: down_read+0x36/0x80 kernel/locking/rwsem.c:24 ntfs_read_block fs/ntfs/aops.c:265 [inline] ntfs_readpage+0x1909/0x21b0 fs/ntfs/aops.c:452 do_read_cache_page+0x533/0x1170 mm/filemap.c:2828 read_mapping_page include/linux/pagemap.h:402 [inline] ntfs_map_page fs/ntfs/aops.h:89 [inline] ntfs_sync_mft_mirror+0x24f/0x1d00 fs/ntfs/mft.c:494 write_mft_record_nolock+0x13d2/0x16c0 fs/ntfs/mft.c:801 write_mft_record fs/ntfs/mft.h:109 [inline] __ntfs_write_inode+0x609/0xe10 fs/ntfs/inode.c:3064 write_inode fs/fs-writeback.c:1244 [inline] __writeback_single_inode+0x733/0x11d0 fs/fs-writeback.c:1442 writeback_sb_inodes+0x537/0xef0 fs/fs-writeback.c:1647 wb_writeback+0x28d/0xcc0 fs/fs-writeback.c:1820 wb_do_writeback fs/fs-writeback.c:1965 [inline] wb_workfn+0x29b/0x1250 fs/fs-writeback.c:2006 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ni->mrec_lock); lock(&rl->lock); lock(&ni->mrec_lock); lock(&rl->lock); *** DEADLOCK *** 3 locks held by kworker/u4:9/19411: #0: 000000005aec3327 ((wq_completion)"writeback"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 0000000091f46732 ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 000000004433cb37 (&ni->mrec_lock){+.+.}, at: map_mft_record+0x3c/0xc70 fs/ntfs/mft.c:168 stack backtrace: CPU: 1 PID: 19411 Comm: kworker/u4:9 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Workqueue: writeback wb_workfn (flush-7:2) Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2420 [inline] __lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 down_read+0x36/0x80 kernel/locking/rwsem.c:24 ntfs_read_block fs/ntfs/aops.c:265 [inline] ntfs_readpage+0x1909/0x21b0 fs/ntfs/aops.c:452 do_read_cache_page+0x533/0x1170 mm/filemap.c:2828 read_mapping_page include/linux/pagemap.h:402 [inline] ntfs_map_page fs/ntfs/aops.h:89 [inline] ntfs_sync_mft_mirror+0x24f/0x1d00 fs/ntfs/mft.c:494 write_mft_record_nolock+0x13d2/0x16c0 fs/ntfs/mft.c:801 write_mft_record fs/ntfs/mft.h:109 [inline] __ntfs_write_inode+0x609/0xe10 fs/ntfs/inode.c:3064 write_inode fs/fs-writeback.c:1244 [inline] __writeback_single_inode+0x733/0x11d0 fs/fs-writeback.c:1442 writeback_sb_inodes+0x537/0xef0 fs/fs-writeback.c:1647 wb_writeback+0x28d/0xcc0 fs/fs-writeback.c:1820 wb_do_writeback fs/fs-writeback.c:1965 [inline] wb_workfn+0x29b/0x1250 fs/fs-writeback.c:2006 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 caif:caif_disconnect_client(): nothing to disconnect XFS (loop1): Mounting V4 Filesystem XFS (loop1): Ending clean mount XFS (loop1): Quotacheck needed: Please wait. XFS (loop1): Quotacheck: Done. XFS (loop1): Unmounting Filesystem netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 'syz-executor.2': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium audit: type=1804 audit(1674917123.430:401): pid=6292 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2072241516/syzkaller.u8yjgG/94/bus" dev="sda1" ino=14081 res=1 XFS (loop1): Mounting V4 Filesystem XFS (loop1): Ending clean mount XFS (loop1): Quotacheck needed: Please wait. XFS (loop1): Quotacheck: Done. audit: type=1804 audit(1674917123.710:402): pid=6417 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2072241516/syzkaller.u8yjgG/95/bus" dev="sda1" ino=14099 res=1 audit: type=1804 audit(1674917123.710:403): pid=6417 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2072241516/syzkaller.u8yjgG/95/bus" dev="sda1" ino=14099 res=1 netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 'syz-executor.2': attribute type 6 has an invalid length. audit: type=1804 audit(1674917123.710:404): pid=6417 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2072241516/syzkaller.u8yjgG/95/bus" dev="sda1" ino=14099 res=1 XFS (loop1): Unmounting Filesystem audit: type=1804 audit(1674917123.710:405): pid=6417 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2072241516/syzkaller.u8yjgG/95/bus" dev="sda1" ino=14099 res=1 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium audit: type=1804 audit(1674917123.710:406): pid=6417 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2072241516/syzkaller.u8yjgG/95/bus" dev="sda1" ino=14099 res=1 netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. audit: type=1804 audit(1674917123.710:407): pid=6417 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2072241516/syzkaller.u8yjgG/95/bus" dev="sda1" ino=14099 res=1 netlink: 'syz-executor.2': attribute type 6 has an invalid length. audit: type=1804 audit(1674917123.710:408): pid=6417 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2072241516/syzkaller.u8yjgG/95/bus" dev="sda1" ino=14099 res=1 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. audit: type=1804 audit(1674917123.710:409): pid=6417 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2072241516/syzkaller.u8yjgG/95/bus" dev="sda1" ino=14099 res=1 netlink: 'syz-executor.2': attribute type 6 has an invalid length. audit: type=1804 audit(1674917123.710:410): pid=6417 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir2072241516/syzkaller.u8yjgG/95/bus" dev="sda1" ino=14099 res=1 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 'syz-executor.2': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 'syz-executor.2': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium XFS (loop1): Mounting V4 Filesystem XFS (loop1): Ending clean mount XFS (loop1): Quotacheck needed: Please wait. XFS (loop1): Quotacheck: Done. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. XFS (loop1): Unmounting Filesystem netlink: 'syz-executor.2': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 'syz-executor.2': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 'syz-executor.2': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium IPVS: ftp: loaded support on port[0] = 21 netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. IPVS: ftp: loaded support on port[0] = 21 netlink: 'syz-executor.2': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium validate_nla: 5 callbacks suppressed netlink: 'syz-executor.2': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 'syz-executor.2': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium IPVS: ftp: loaded support on port[0] = 21 netlink: 'syz-executor.4': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 'syz-executor.5': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 'syz-executor.2': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium nla_parse: 10 callbacks suppressed netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 'syz-executor.4': attribute type 6 has an invalid length. netlink: 'syz-executor.2': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 'syz-executor.0': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 'syz-executor.5': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 'syz-executor.4': attribute type 6 has an invalid length. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium