audit: type=1804 audit(1674062963.509:18): pid=10255 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir1136016592/syzkaller.BW3AC3/18/bus" dev="sda1" ino=13998 res=1 ====================================================== WARNING: possible circular locking dependency detected 4.14.303-syzkaller #0 Not tainted ------------------------------------------------------ kworker/u4:2/40 is trying to acquire lock: (&rl->lock){++++}, at: [] ntfs_read_block fs/ntfs/aops.c:269 [inline] (&rl->lock){++++}, at: [] ntfs_readpage+0x1396/0x1ad0 fs/ntfs/aops.c:456 but task is already holding lock: (&ni->mrec_lock){+.+.}, at: [] map_mft_record+0x2b/0xbe0 fs/ntfs/mft.c:166 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&ni->mrec_lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 map_mft_record+0x2b/0xbe0 fs/ntfs/mft.c:166 ntfs_truncate+0x1a6/0x22d0 fs/ntfs/inode.c:2415 ntfs_truncate_vfs fs/ntfs/inode.c:2895 [inline] ntfs_setattr+0x148/0x580 fs/ntfs/inode.c:2945 notify_change+0x56b/0xd10 fs/attr.c:315 do_truncate+0xff/0x1a0 fs/open.c:63 handle_truncate fs/namei.c:3010 [inline] do_last fs/namei.c:3437 [inline] path_openat+0x1dcc/0x2970 fs/namei.c:3571 do_filp_open+0x179/0x3c0 fs/namei.c:3605 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 -> #0 (&rl->lock){++++}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 down_read+0x36/0x80 kernel/locking/rwsem.c:24 ntfs_read_block fs/ntfs/aops.c:269 [inline] ntfs_readpage+0x1396/0x1ad0 fs/ntfs/aops.c:456 do_read_cache_page+0x38e/0xc10 mm/filemap.c:2713 read_mapping_page include/linux/pagemap.h:398 [inline] ntfs_map_page fs/ntfs/aops.h:89 [inline] ntfs_sync_mft_mirror+0x1f4/0x1560 fs/ntfs/mft.c:490 write_mft_record_nolock+0xece/0x1240 fs/ntfs/mft.c:793 write_mft_record fs/ntfs/mft.h:109 [inline] __ntfs_write_inode+0x58d/0xcc0 fs/ntfs/inode.c:3084 write_inode fs/fs-writeback.c:1241 [inline] __writeback_single_inode+0x6a4/0x1010 fs/fs-writeback.c:1439 writeback_sb_inodes+0x48b/0xd30 fs/fs-writeback.c:1645 wb_writeback+0x243/0xb80 fs/fs-writeback.c:1820 wb_do_writeback fs/fs-writeback.c:1952 [inline] wb_workfn+0x2bd/0xf50 fs/fs-writeback.c:1988 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 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/u4:2/40: #0: ("writeback"){+.+.}, at: [] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2088 #1: ((&(&wb->dwork)->work)){+.+.}, at: [] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2092 #2: (&ni->mrec_lock){+.+.}, at: [] map_mft_record+0x2b/0xbe0 fs/ntfs/mft.c:166 stack backtrace: CPU: 0 PID: 40 Comm: kworker/u4:2 Not tainted 4.14.303-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Workqueue: writeback wb_workfn (flush-7:4) Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 down_read+0x36/0x80 kernel/locking/rwsem.c:24 ntfs_read_block fs/ntfs/aops.c:269 [inline] ntfs_readpage+0x1396/0x1ad0 fs/ntfs/aops.c:456 do_read_cache_page+0x38e/0xc10 mm/filemap.c:2713 read_mapping_page include/linux/pagemap.h:398 [inline] ntfs_map_page fs/ntfs/aops.h:89 [inline] ntfs_sync_mft_mirror+0x1f4/0x1560 fs/ntfs/mft.c:490 write_mft_record_nolock+0xece/0x1240 fs/ntfs/mft.c:793 write_mft_record fs/ntfs/mft.h:109 [inline] __ntfs_write_inode+0x58d/0xcc0 fs/ntfs/inode.c:3084 write_inode fs/fs-writeback.c:1241 [inline] __writeback_single_inode+0x6a4/0x1010 fs/fs-writeback.c:1439 writeback_sb_inodes+0x48b/0xd30 fs/fs-writeback.c:1645 wb_writeback+0x243/0xb80 fs/fs-writeback.c:1820 wb_do_writeback fs/fs-writeback.c:1952 [inline] wb_workfn+0x2bd/0xf50 fs/fs-writeback.c:1988 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 syz-executor.5 (10257): drop_caches: 1 IPVS: sync thread started: state = MASTER, mcast_ifn = macvlan1, syncid = 3, id = 0 Cannot find del_set index 0 as target netlink: 52 bytes leftover after parsing attributes in process `syz-executor.0'. nbd: socks must be embedded in a SOCK_ITEM attr ntfs: volume version 3.1. Cannot find del_set index 0 as target syz-executor.5 (10325): drop_caches: 1 ntfs: (device loop4): ntfs_cluster_alloc(): Failed to allocate clusters, aborting (error -28). netlink: 52 bytes leftover after parsing attributes in process `syz-executor.0'. ntfs: (device loop4): ntfs_attr_extend_allocation(): Cannot extend allocation of inode 0x43, attribute type 0x80, because the allocation of clusters failed with error code -28. nbd: socks must be embedded in a SOCK_ITEM attr ntfs: (device loop4): ntfs_write_block(): Writing beyond initialized size is not supported yet. Sorry. Cannot find del_set index 0 as target netlink: 52 bytes leftover after parsing attributes in process `syz-executor.0'. IPVS: sync thread started: state = MASTER, mcast_ifn = macvlan1, syncid = 3, id = 0 nbd: socks must be embedded in a SOCK_ITEM attr Cannot find del_set index 0 as target netlink: 52 bytes leftover after parsing attributes in process `syz-executor.3'. nbd: socks must be embedded in a SOCK_ITEM attr Cannot find del_set index 0 as target netlink: 52 bytes leftover after parsing attributes in process `syz-executor.0'. nbd: socks must be embedded in a SOCK_ITEM attr syz-executor.5 (10325): drop_caches: 1 ntfs: volume version 3.1. ntfs: (device loop4): ntfs_cluster_alloc(): Failed to allocate clusters, aborting (error -28). ntfs: (device loop4): ntfs_attr_extend_allocation(): Cannot extend allocation of inode 0x43, attribute type 0x80, because the allocation of clusters failed with error code -28. Cannot find del_set index 0 as target Cannot find del_set index 0 as target IPVS: sync thread started: state = MASTER, mcast_ifn = macvlan1, syncid = 3, id = 0 Cannot find del_set index 0 as target netlink: 52 bytes leftover after parsing attributes in process `syz-executor.3'. nbd: socks must be embedded in a SOCK_ITEM attr netlink: 52 bytes leftover after parsing attributes in process `syz-executor.0'. ntfs: volume version 3.1. nbd: socks must be embedded in a SOCK_ITEM attr Cannot find del_set index 0 as target Cannot find del_set index 0 as target netlink: 52 bytes leftover after parsing attributes in process `syz-executor.3'. nbd: socks must be embedded in a SOCK_ITEM attr netlink: 52 bytes leftover after parsing attributes in process `syz-executor.1'. syz-executor.5 (10392): drop_caches: 1 Cannot find del_set index 0 as target nbd: socks must be embedded in a SOCK_ITEM attr netlink: 52 bytes leftover after parsing attributes in process `syz-executor.0'. nbd: socks must be embedded in a SOCK_ITEM attr Cannot find del_set index 0 as target nbd: socks must be embedded in a SOCK_ITEM attr syz-executor.5 (10392): drop_caches: 1 L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. sctp: [Deprecated]: syz-executor.4 (pid 10423) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead Cannot find del_set index 0 as target sctp: [Deprecated]: syz-executor.2 (pid 10454) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead nbd: socks must be embedded in a SOCK_ITEM attr sctp: [Deprecated]: syz-executor.4 (pid 10439) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor.5 (pid 10447) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor.4 (pid 10462) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor.2 (pid 10504) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor.5 (pid 10503) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead kauditd_printk_skb: 6 callbacks suppressed audit: type=1804 audit(1674062967.899:21): pid=10515 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir3226311289/syzkaller.9Ayd3j/18/bus" dev="sda1" ino=14029 res=1 sctp: [Deprecated]: syz-executor.4 (pid 10506) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead audit: type=1804 audit(1674062968.109:22): pid=10508 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir1457267437/syzkaller.yAurY7/27/bus" dev="sda1" ino=14030 res=1 sctp: [Deprecated]: syz-executor.2 (pid 10539) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor.5 (pid 10540) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead audit: type=1804 audit(1674062968.889:23): pid=10546 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir3226311289/syzkaller.9Ayd3j/19/bus" dev="sda1" ino=14027 res=1 audit: type=1804 audit(1674062969.099:24): pid=10551 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir1457267437/syzkaller.yAurY7/28/bus" dev="sda1" ino=14028 res=1