syz-executor.4 (5676): drop_caches: 1 ntfs: (device loop1): ntfs_attr_extend_allocation(): Cannot extend allocation of inode 0x43, attribute type 0x80, because the allocation of clusters failed with error code -28. syz-executor.0 (5709): drop_caches: 1 ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ kworker/u4:9/13182 is trying to acquire lock: 00000000c1316c9f (&rl->lock){++++}, at: ntfs_read_block fs/ntfs/aops.c:265 [inline] 00000000c1316c9f (&rl->lock){++++}, at: ntfs_readpage+0x1909/0x21b0 fs/ntfs/aops.c:452 but task is already holding lock: 00000000cb151891 (&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_truncate+0x202/0x2820 fs/ntfs/inode.c:2395 ntfs_truncate_vfs fs/ntfs/inode.c:2875 [inline] ntfs_setattr+0x1b6/0x620 fs/ntfs/inode.c:2925 notify_change+0x70b/0xfc0 fs/attr.c:334 do_truncate+0x134/0x1f0 fs/open.c:63 handle_truncate fs/namei.c:3009 [inline] do_last fs/namei.c:3427 [inline] path_openat+0x2308/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 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/u4:9/13182: #0: 000000005c3c8d01 ((wq_completion)"writeback"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000009e4c631c ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000cb151891 (&ni->mrec_lock){+.+.}, at: map_mft_record+0x3c/0xc70 fs/ntfs/mft.c:168 stack backtrace: CPU: 0 PID: 13182 Comm: kworker/u4:9 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: writeback wb_workfn (flush-7:1) 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 syz-executor.4 (5676): drop_caches: 1 syz-executor.0 (5709): drop_caches: 1 syz-executor.4 (5680): drop_caches: 1 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue QAT: failed to copy from user cfg_data. ntfs: (device loop1): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel. ntfs: volume version 3.1. EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue syz-executor.0 (5754): drop_caches: 1 ntfs: (device loop1): ntfs_cluster_alloc(): Failed to allocate clusters, aborting (error -28). ntfs: (device loop1): ntfs_attr_extend_allocation(): Cannot extend allocation of inode 0x43, attribute type 0x80, because the allocation of clusters failed with error code -28. syz-executor.0 (5754): drop_caches: 1 QAT: failed to copy from user cfg_data. QAT: failed to copy from user cfg_data. EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue QAT: failed to copy from user cfg_data. syz-executor.0 (5826): drop_caches: 1 ntfs: (device loop1): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel. EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue ntfs: volume version 3.1. syz-executor.0 (5826): drop_caches: 1 syz-executor.4 (5858): drop_caches: 1 ntfs: (device loop1): ntfs_cluster_alloc(): Failed to allocate clusters, aborting (error -28). ntfs: (device loop1): ntfs_attr_extend_allocation(): Cannot extend allocation of inode 0x43, attribute type 0x80, because the allocation of clusters failed with error code -28. BTRFS info (device loop2): using free space tree BTRFS info (device loop2): has skinny extents EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue syz-executor.4 (5858): drop_caches: 1 syz-executor.0 (5918): drop_caches: 1 ntfs: volume version 3.1. EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue syz-executor.0 (5930): drop_caches: 1 syz-executor.4 (5940): drop_caches: 1 syz-executor.0 (5935): drop_caches: 1 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue syz-executor.0 (5918): drop_caches: 1 syz-executor.4 (5940): drop_caches: 1 syz-executor.0 (5930): drop_caches: 1 syz-executor.0 (5935): drop_caches: 1 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue BTRFS info (device loop2): using free space tree BTRFS info (device loop2): has skinny extents syz-executor.0 (5998): drop_caches: 1 syz-executor.4 (6007): drop_caches: 1 BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor.3 (5981) syz-executor.0 (6006): drop_caches: 1 BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by systemd-udevd (6046) syz-executor.0 (5998): drop_caches: 1 BTRFS info (device loop1): using free space tree BTRFS info (device loop1): has skinny extents syz-executor.4 (6007): drop_caches: 1 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor.2 (6055) syz-executor.0 (6006): drop_caches: 1 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue syz-executor.0 (6117): drop_caches: 1 syz-executor.4 (6092): drop_caches: 1 syz-executor.0 (6121): drop_caches: 1 syz-executor.0 (6117): drop_caches: 1 BTRFS info (device loop1): using free space tree BTRFS info (device loop1): has skinny extents kauditd_printk_skb: 23 callbacks suppressed audit: type=1800 audit(1672912719.093:129): pid=6091 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="bus" dev="sda1" ino=14198 res=0 audit: type=1800 audit(1672912719.133:130): pid=6091 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="bus" dev="sda1" ino=14198 res=0 syz-executor.0 (6121): drop_caches: 1 syz-executor.4 (6092): drop_caches: 1 audit: type=1800 audit(1672912719.213:131): pid=6110 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="loop1" ino=263 res=0 audit: type=1800 audit(1672912719.213:132): pid=6110 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="loop1" ino=263 res=0 audit: type=1804 audit(1672912719.213:133): pid=6110 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir4063556579/syzkaller.4dNwLZ/699/file0/bus" dev="loop1" ino=263 res=1 audit: type=1804 audit(1672912719.213:134): pid=6110 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir4063556579/syzkaller.4dNwLZ/699/file0/bus" dev="loop1" ino=263 res=1 audit: type=1804 audit(1672912719.263:135): pid=6182 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir4113753825/syzkaller.eiSQiW/881/bus" dev="sda1" ino=14198 res=1 BTRFS info (device loop2): using free space tree BTRFS info (device loop2): has skinny extents audit: type=1804 audit(1672912719.483:136): pid=6091 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir4113753825/syzkaller.eiSQiW/881/bus" dev="sda1" ino=14198 res=1 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue syz-executor.4 (6177): drop_caches: 1 audit: type=1800 audit(1672912719.733:137): pid=6141 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="loop2" ino=263 res=0 audit: type=1800 audit(1672912719.743:138): pid=6141 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="loop2" ino=263 res=0 syz-executor.0 (6230): drop_caches: 1 BTRFS info (device loop1): using free space tree BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor.3 (6232) BTRFS info (device loop1): has skinny extents syz-executor.4 (6177): drop_caches: 1 syz-executor.0 (6230): drop_caches: 1 syz-executor.4 (6313): drop_caches: 1 BTRFS info (device loop2): using free space tree BTRFS info (device loop2): has skinny extents EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue syz-executor.0 (6317): drop_caches: 1 syz-executor.4 (6313): drop_caches: 1 syz-executor.0 (6317): drop_caches: 1 REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal REISERFS (device loop1): using ordered data mode reiserfs: using flush barriers REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop1): checking transaction log (loop1) REISERFS (device loop1): Using r5 hash to sort names REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. syz-executor.4 (6401): drop_caches: 1 syz-executor.0 (6410): drop_caches: 1 syz-executor.4 (6401): drop_caches: 1 BTRFS info (device loop2): using free space tree BTRFS info (device loop2): has skinny extents syz-executor.0 (6410): drop_caches: 1 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue syz-executor.4 (6479): drop_caches: 1 syz-executor.4 (6479): drop_caches: 1 BTRFS info (device loop2): using free space tree BTRFS info (device loop2): has skinny extents netlink: 'syz-executor.1': attribute type 1 has an invalid length. netlink: 'syz-executor.1': attribute type 2 has an invalid length. syz-executor.4 (6573): drop_caches: 1 nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue syz-executor.0 (6571): drop_caches: 1 syz-executor.4 (6573): drop_caches: 1 syz-executor.0 (6571): drop_caches: 1 syz-executor.0 (6627): drop_caches: 1 syz-executor.0 (6627): drop_caches: 1 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue syz-executor.0 (6650): drop_caches: 1 syz-executor.4 (6651): drop_caches: 1 syz-executor.0 (6650): drop_caches: 1 syz-executor.4 (6651): drop_caches: 1 syz-executor.4 (6711): drop_caches: 1 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue syz-executor.0 (6706): drop_caches: 1 syz-executor.4 (6711): drop_caches: 1 syz-executor.0 (6706): drop_caches: 1 syz-executor.4 (6751): drop_caches: 1 syz-executor.4 (6761): drop_caches: 1 syz-executor.4 (6751): drop_caches: 1 syz-executor.4 (6761): drop_caches: 1 syz-executor.0 (6773): drop_caches: 1 syz-executor.0 (6773): drop_caches: 1 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue syz-executor.4 (6785): drop_caches: 1 syz-executor.4 (6784): drop_caches: 1