====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.5/2799 is trying to acquire lock: 00000000d2357b65 (&tree->tree_lock){+.+.}, at: hfsplus_file_truncate+0xde7/0x1040 fs/hfsplus/extents.c:595 but task is already holding lock: 00000000f99a19a6 (&HFSPLUS_I(inode)->extents_lock){+.+.}, at: hfsplus_file_truncate+0x1e2/0x1040 fs/hfsplus/extents.c:576 XFS (loop4): Mounting V4 Filesystem which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&HFSPLUS_I(inode)->extents_lock){+.+.}: XFS (loop4): Ending clean mount hfsplus_get_block+0x292/0x960 fs/hfsplus/extents.c:260 block_read_full_page+0x288/0xd10 fs/buffer.c:2259 do_read_cache_page+0x533/0x1170 mm/filemap.c:2828 read_mapping_page include/linux/pagemap.h:402 [inline] __hfs_bnode_create+0x5b7/0xb60 fs/hfsplus/bnode.c:447 XFS (loop4): Quotacheck needed: Please wait. hfsplus_bnode_find+0x2aa/0xb80 fs/hfsplus/bnode.c:497 XFS (loop4): Quotacheck: Done. hfsplus_brec_find+0x2af/0x500 fs/hfsplus/bfind.c:183 hfsplus_brec_read+0x28/0x120 fs/hfsplus/bfind.c:222 hfsplus_find_cat+0x1d0/0x480 fs/hfsplus/catalog.c:202 hfsplus_iget+0x400/0x790 fs/hfsplus/super.c:81 hfsplus_fill_super+0xc5f/0x19e0 fs/hfsplus/super.c:503 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&tree->tree_lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:937 [inline] __mutex_lock+0xd7/0x1190 kernel/locking/mutex.c:1078 hfsplus_file_truncate+0xde7/0x1040 fs/hfsplus/extents.c:595 hfsplus_setattr+0x1e7/0x310 fs/hfsplus/inode.c:263 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 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&HFSPLUS_I(inode)->extents_lock); lock(&tree->tree_lock); lock(&HFSPLUS_I(inode)->extents_lock); lock(&tree->tree_lock); *** DEADLOCK *** 3 locks held by syz-executor.5/2799: #0: 0000000004fe7b26 (sb_writers#32){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 0000000004fe7b26 (sb_writers#32){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 00000000a53e3d26 (&sb->s_type->i_mutex_key#36){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 00000000a53e3d26 (&sb->s_type->i_mutex_key#36){+.+.}, at: do_truncate+0x125/0x1f0 fs/open.c:61 #2: 00000000f99a19a6 (&HFSPLUS_I(inode)->extents_lock){+.+.}, at: hfsplus_file_truncate+0x1e2/0x1040 fs/hfsplus/extents.c:576 stack backtrace: CPU: 0 PID: 2799 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 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 __mutex_lock_common kernel/locking/mutex.c:937 [inline] __mutex_lock+0xd7/0x1190 kernel/locking/mutex.c:1078 hfsplus_file_truncate+0xde7/0x1040 fs/hfsplus/extents.c:595 hfsplus_setattr+0x1e7/0x310 fs/hfsplus/inode.c:263 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 RIP: 0033:0x7f679d6340f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f679bba6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f679d753f80 RCX: 00007f679d6340f9 RDX: 0000000000000000 RSI: 0000000000143242 RDI: 0000000020000000 RBP: 00007f679d68fae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd09d2853f R14: 00007f679bba6300 R15: 0000000000022000 XFS (loop4): Unmounting Filesystem EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue audit: type=1800 audit(1676654906.505:467): pid=2936 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="SYSV00000000" dev="hugetlbfs" ino=1081372 res=0 netlink: 'syz-executor.1': attribute type 1 has an invalid length. audit: type=1800 audit(1676654906.725:468): pid=2961 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="SYSV00000000" dev="hugetlbfs" ino=1179678 res=0 8021q: adding VLAN 0 to HW filter on device batadv1 bond1: making interface batadv1 the new active one bond1: Enslaving batadv1 as an active interface with an up link XFS (loop4): Mounting V4 Filesystem XFS (loop4): Ending clean mount XFS (loop4): Quotacheck needed: Please wait. XFS (loop4): Quotacheck: Done. XFS (loop4): Unmounting Filesystem netlink: 'syz-executor.1': attribute type 1 has an invalid length. EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue audit: type=1800 audit(1676654907.215:469): pid=3029 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="SYSV00000000" dev="hugetlbfs" ino=1277984 res=0 8021q: adding VLAN 0 to HW filter on device batadv2 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue bond2: making interface batadv2 the new active one bond2: Enslaving batadv2 as an active interface with an up link netlink: 'syz-executor.5': attribute type 1 has an invalid length. audit: type=1800 audit(1676654907.525:470): pid=3095 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="SYSV00000000" dev="hugetlbfs" ino=1376290 res=0 8021q: adding VLAN 0 to HW filter on device batadv1 bond1: making interface batadv1 the new active one EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue bond1: Enslaving batadv1 as an active interface with an up link XFS (loop4): Mounting V4 Filesystem XFS (loop4): Ending clean mount XFS (loop4): Quotacheck needed: Please wait. XFS (loop4): Quotacheck: Done. XFS (loop4): Unmounting Filesystem netlink: 'syz-executor.1': attribute type 1 has an invalid length. netlink: 'syz-executor.2': attribute type 1 has an invalid length. audit: type=1800 audit(1676654908.245:471): pid=3186 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.0" name="SYSV00000000" dev="hugetlbfs" ino=360459 res=0 netlink: 'syz-executor.5': attribute type 1 has an invalid length. 8021q: adding VLAN 0 to HW filter on device batadv3 bond3: making interface batadv3 the new active one bond3: Enslaving batadv3 as an active interface with an up link 8021q: adding VLAN 0 to HW filter on device batadv2 bond2: making interface batadv2 the new active one bond2: Enslaving batadv2 as an active interface with an up link 8021q: adding VLAN 0 to HW filter on device batadv1 audit: type=1800 audit(1676654908.555:472): pid=3303 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.0" name="SYSV00000000" dev="hugetlbfs" ino=458765 res=0 bond1: making interface batadv1 the new active one bond1: Enslaving batadv1 as an active interface with an up link audit: type=1800 audit(1676654908.775:473): pid=3311 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.0" name="SYSV00000000" dev="hugetlbfs" ino=557071 res=0 netlink: 'syz-executor.5': attribute type 1 has an invalid length. netlink: 'syz-executor.1': attribute type 1 has an invalid length. 8021q: adding VLAN 0 to HW filter on device batadv3 bond3: making interface batadv3 the new active one bond3: Enslaving batadv3 as an active interface with an up link audit: type=1800 audit(1676654909.105:474): pid=3364 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.0" name="SYSV00000000" dev="hugetlbfs" ino=655377 res=0 8021q: adding VLAN 0 to HW filter on device batadv4 bond4: making interface batadv4 the new active one bond4: Enslaving batadv4 as an active interface with an up link netlink: 'syz-executor.2': attribute type 1 has an invalid length. audit: type=1800 audit(1676654909.315:475): pid=3406 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.0" name="SYSV00000000" dev="hugetlbfs" ino=753683 res=0 8021q: adding VLAN 0 to HW filter on device batadv2 bond2: making interface batadv2 the new active one bond2: Enslaving batadv2 as an active interface with an up link XFS (loop4): Mounting V4 Filesystem XFS (loop4): Ending clean mount XFS (loop4): Quotacheck needed: Please wait. XFS (loop4): Quotacheck: Done. XFS (loop4): Unmounting Filesystem netlink: 'syz-executor.2': attribute type 1 has an invalid length. audit: type=1800 audit(1676654909.715:476): pid=3470 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.0" name="SYSV00000000" dev="hugetlbfs" ino=851989 res=0 8021q: adding VLAN 0 to HW filter on device batadv3 bond3: making interface batadv3 the new active one bond3: Enslaving batadv3 as an active interface with an up link kauditd_printk_skb: 22 callbacks suppressed audit: type=1800 audit(1676654911.515:499): pid=3597 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="SYSV00000000" dev="hugetlbfs" ino=983065 res=0 audit: type=1800 audit(1676654911.585:500): pid=3604 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.2" name="SYSV00000000" dev="hugetlbfs" ino=1671208 res=0 audit: type=1800 audit(1676654911.775:501): pid=3609 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.5" name="SYSV00000000" dev="hugetlbfs" ino=1507365 res=0 audit: type=1800 audit(1676654911.935:502): pid=3623 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.1" name="SYSV00000000" dev="hugetlbfs" ino=1409058 res=0 audit: type=1800 audit(1676654912.065:503): pid=3624 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed comm="syz-executor.3" name="SYSV00000000" dev="hugetlbfs" ino=1081371 res=0 audit: type=1804 audit(1676654912.755:504): pid=3721 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir3625629323/syzkaller.zfyxTP/653/bus" dev="sda1" ino=14898 res=1 device geneve2 entered promiscuous mode IPv6: ADDRCONF(NETDEV_CHANGE): geneve2: link becomes ready audit: type=1804 audit(1676654912.755:505): pid=3721 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir3625629323/syzkaller.zfyxTP/653/bus" dev="sda1" ino=14898 res=1 audit: type=1804 audit(1676654913.675:506): pid=3769 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir3625629323/syzkaller.zfyxTP/654/bus" dev="sda1" ino=14836 res=1 audit: type=1804 audit(1676654913.695:507): pid=3769 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir3625629323/syzkaller.zfyxTP/654/bus" dev="sda1" ino=14836 res=1 EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue audit: type=1804 audit(1676654913.995:508): pid=3777 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir1294298907/syzkaller.LwvkbM/192/file0/bus" dev="loop1" ino=18 res=1 EXT4-fs error (device loop5): ext4_mb_generate_buddy:744: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs (loop5): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop5): This should not happen!! Data will be lost EXT4-fs (loop5): Total free blocks count 0 EXT4-fs (loop5): Free/Dirty block details EXT4-fs (loop5): free_blocks=2415919104 EXT4-fs (loop5): dirty_blocks=16 EXT4-fs (loop5): Block reservation details EXT4-fs (loop5): i_reserved_data_blocks=1 EXT4-fs error (device loop1): ext4_mb_generate_buddy:744: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop1): This should not happen!! Data will be lost EXT4-fs (loop1): Total free blocks count 0 EXT4-fs (loop1): Free/Dirty block details EXT4-fs (loop1): free_blocks=2415919104 EXT4-fs (loop1): dirty_blocks=16 EXT4-fs (loop1): Block reservation details EXT4-fs (loop1): i_reserved_data_blocks=1 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue