====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.5/25847 is trying to acquire lock: 00000000c3e256e1 (&tree->tree_lock){+.+.}, at: hfsplus_file_truncate+0xde7/0x1040 fs/hfsplus/extents.c:595 but task is already holding lock: 00000000fd7a311f (&HFSPLUS_I(inode)->extents_lock){+.+.}, at: hfsplus_file_truncate+0x1e2/0x1040 fs/hfsplus/extents.c:576 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&HFSPLUS_I(inode)->extents_lock){+.+.}: hfsplus_file_extend+0x1bb/0xf40 fs/hfsplus/extents.c:457 hfsplus_bmap_reserve+0x298/0x440 fs/hfsplus/btree.c:357 hfsplus_create_attr+0x221/0x470 fs/hfsplus/attributes.c:221 __hfsplus_setxattr+0x34a/0x1cc0 fs/hfsplus/xattr.c:346 hfsplus_setxattr+0x94/0xd0 fs/hfsplus/xattr.c:435 __vfs_setxattr+0x10e/0x170 fs/xattr.c:149 __vfs_setxattr_noperm+0x11a/0x420 fs/xattr.c:180 __vfs_setxattr_locked+0x176/0x250 fs/xattr.c:238 vfs_setxattr+0xe5/0x270 fs/xattr.c:255 setxattr+0x23d/0x330 fs/xattr.c:520 path_setxattr+0x170/0x190 fs/xattr.c:539 __do_sys_lsetxattr fs/xattr.c:561 [inline] __se_sys_lsetxattr fs/xattr.c:557 [inline] __x64_sys_lsetxattr+0xbd/0x150 fs/xattr.c:557 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (&tree->tree_lock/2){+.+.}: hfsplus_find_init+0x195/0x220 fs/hfsplus/bfind.c:36 hfsplus_attr_exists+0xf4/0x1f0 fs/hfsplus/attributes.c:178 __hfsplus_setxattr+0x301/0x1cc0 fs/hfsplus/xattr.c:337 hfsplus_setxattr+0x94/0xd0 fs/hfsplus/xattr.c:435 __vfs_setxattr+0x10e/0x170 fs/xattr.c:149 __vfs_setxattr_noperm+0x11a/0x420 fs/xattr.c:180 __vfs_setxattr_locked+0x176/0x250 fs/xattr.c:238 vfs_setxattr+0xe5/0x270 fs/xattr.c:255 setxattr+0x23d/0x330 fs/xattr.c:520 path_setxattr+0x170/0x190 fs/xattr.c:539 __do_sys_lsetxattr fs/xattr.c:561 [inline] __se_sys_lsetxattr fs/xattr.c:557 [inline] __x64_sys_lsetxattr+0xbd/0x150 fs/xattr.c:557 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: Chain exists of: &tree->tree_lock --> &tree->tree_lock/2 --> &HFSPLUS_I(inode)->extents_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&HFSPLUS_I(inode)->extents_lock); lock(&tree->tree_lock/2); lock(&HFSPLUS_I(inode)->extents_lock); lock(&tree->tree_lock); *** DEADLOCK *** 3 locks held by syz-executor.5/25847: #0: 00000000126d7d17 (sb_writers#23){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 00000000126d7d17 (sb_writers#23){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 0000000019a638fd (&sb->s_type->i_mutex_key#27){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 0000000019a638fd (&sb->s_type->i_mutex_key#27){+.+.}, at: do_truncate+0x125/0x1f0 fs/open.c:61 #2: 00000000fd7a311f (&HFSPLUS_I(inode)->extents_lock){+.+.}, at: hfsplus_file_truncate+0x1e2/0x1040 fs/hfsplus/extents.c:576 stack backtrace: CPU: 0 PID: 25847 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: 0033:0x7f08490de0f9 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:00007f0847650168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f08491fdf80 RCX: 00007f08490de0f9 RDX: 0000000000000000 RSI: 00000000000000c8 RDI: 0000000020000000 RBP: 00007f0849139ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc6c02fc6f R14: 00007f0847650300 R15: 0000000000022000 IPVS: ftp: loaded support on port[0] = 21 device syz_tun entered promiscuous mode IPVS: ftp: loaded support on port[0] = 21 hfsplus: cannot replace xattr device syz_tun left promiscuous mode device syz_tun entered promiscuous mode IPVS: ftp: loaded support on port[0] = 21 device syz_tun left promiscuous mode hfsplus: cannot replace xattr device syz_tun entered promiscuous mode hfsplus: unable to parse mount options audit: type=1800 audit(1676724995.322:1855): pid=26047 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="file0" dev="sda1" ino=15059 res=0 device syz_tun left promiscuous mode device syz_tun entered promiscuous mode audit: type=1804 audit(1676724995.322:1856): pid=26047 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir3175116739/syzkaller.ZZJbUx/478/file0" dev="sda1" ino=15059 res=1 device syz_tun left promiscuous mode device syz_tun entered promiscuous mode audit: type=1800 audit(1676724995.502:1857): pid=26082 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="file0" dev="sda1" ino=14770 res=0 device syz_tun left promiscuous mode IPVS: ftp: loaded support on port[0] = 21 audit: type=1804 audit(1676724995.532:1858): pid=26082 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir3175116739/syzkaller.ZZJbUx/479/file0" dev="sda1" ino=14770 res=1 hfsplus: unable to parse mount options device syz_tun entered promiscuous mode device syz_tun left promiscuous mode hfsplus: unable to load nls mapping "†p1250" hfsplus: unable to parse mount options device syz_tun entered promiscuous mode device syz_tun left promiscuous mode hfsplus: unable to parse mount options audit: type=1800 audit(1676724996.022:1859): pid=26177 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="file0" dev="sda1" ino=14883 res=0 audit: type=1804 audit(1676724996.052:1860): pid=26177 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir3175116739/syzkaller.ZZJbUx/481/file0" dev="sda1" ino=14883 res=1 device syz_tun entered promiscuous mode IPVS: ftp: loaded support on port[0] = 21 device syz_tun left promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun entered promiscuous mode hfsplus: unable to load nls mapping "†p1250" hfsplus: unable to parse mount options device syz_tun left promiscuous mode IPVS: ftp: loaded support on port[0] = 21 device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode IPVS: ftp: loaded support on port[0] = 21 device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun entered promiscuous mode IPVS: ftp: loaded support on port[0] = 21 device syz_tun left promiscuous mode hfsplus: cannot replace xattr device syz_tun entered promiscuous mode device syz_tun left promiscuous mode hfsplus: unable to parse mount options EXT4-fs warning (device sda1): verify_group_input:131: Cannot add at group 8 (only 16 groups) device syz_tun entered promiscuous mode device syz_tun left promiscuous mode hfsplus: cannot replace xattr IPVS: ftp: loaded support on port[0] = 21 device syz_tun entered promiscuous mode device syz_tun left promiscuous mode hfsplus: unable to parse mount options device syz_tun entered promiscuous mode device syz_tun left promiscuous mode EXT4-fs warning (device sda1): verify_group_input:131: Cannot add at group 8 (only 16 groups) hfsplus: cannot replace xattr audit: type=1800 audit(1676724998.192:1861): pid=26576 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="file0" dev="sda1" ino=14737 res=0 hfsplus: cannot replace xattr audit: type=1804 audit(1676724998.222:1862): pid=26576 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir3175116739/syzkaller.ZZJbUx/489/file0" dev="sda1" ino=14737 res=1 hfsplus: unable to parse mount options EXT4-fs warning (device sda1): verify_group_input:131: Cannot add at group 8 (only 16 groups) IPVS: ftp: loaded support on port[0] = 21 hfsplus: cannot replace xattr audit: type=1800 audit(1676724998.612:1863): pid=26642 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="file0" dev="sda1" ino=15250 res=0 audit: type=1804 audit(1676724998.612:1864): pid=26642 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir3175116739/syzkaller.ZZJbUx/490/file0" dev="sda1" ino=15250 res=1 hfsplus: cannot replace xattr hfsplus: unable to parse mount options IPVS: ftp: loaded support on port[0] = 21 hfsplus: cannot replace xattr hfsplus: unable to parse mount options device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun entered promiscuous mode hfsplus: unable to parse mount options device syz_tun left promiscuous mode device syz_tun entered promiscuous mode IPVS: ftp: loaded support on port[0] = 21 hfsplus: unable to parse mount options hfsplus: cannot replace xattr hfsplus: cannot replace xattr hfsplus: unable to parse mount options device syz_tun left promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode hfsplus: cannot replace xattr hfsplus: cannot replace xattr device syz_tun entered promiscuous mode device syz_tun left promiscuous mode hfsplus: unable to parse mount options device syz_tun entered promiscuous mode device syz_tun left promiscuous mode IPVS: ftp: loaded support on port[0] = 21 hfsplus: unable to parse mount options device syz_tun entered promiscuous mode hfsplus: unable to parse mount options hfsplus: unable to parse mount options device syz_tun left promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode kauditd_printk_skb: 77 callbacks suppressed audit: type=1800 audit(1676725000.893:1942): pid=26986 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="file0" dev="sda1" ino=15858 res=0 hfsplus: unable to parse mount options audit: type=1804 audit(1676725000.893:1943): pid=26986 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir2416092768/syzkaller.VsWfWp/128/file0" dev="sda1" ino=15858 res=1 audit: type=1800 audit(1676725000.943:1944): pid=26995 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="file0" dev="sda1" ino=14705 res=0 IPVS: ftp: loaded support on port[0] = 21 audit: type=1804 audit(1676725000.943:1945): pid=26995 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir2416092768/syzkaller.VsWfWp/129/file0" dev="sda1" ino=14705 res=1 hfsplus: unable to parse mount options device syz_tun entered promiscuous mode device syz_tun left promiscuous mode audit: type=1800 audit(1676725001.543:1946): pid=27067 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="file0" dev="sda1" ino=15865 res=0 IPVS: ftp: loaded support on port[0] = 21 hfsplus: unable to parse mount options hfsplus: unable to parse mount options hfsplus: unable to parse mount options audit: type=1804 audit(1676725001.543:1947): pid=27067 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir2416092768/syzkaller.VsWfWp/130/file0" dev="sda1" ino=15865 res=1 hfsplus: unable to parse mount options device syz_tun entered promiscuous mode device syz_tun left promiscuous mode hfsplus: unable to parse mount options hfsplus: unable to parse mount options device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun entered promiscuous mode IPVS: ftp: loaded support on port[0] = 21 device syz_tun left promiscuous mode hfsplus: unable to parse mount options hfsplus: unable to parse mount options device syz_tun entered promiscuous mode device syz_tun left promiscuous mode hfsplus: cannot replace xattr hfsplus: unable to parse mount options device syz_tun entered promiscuous mode device syz_tun left promiscuous mode hfsplus: unable to parse mount options IPVS: ftp: loaded support on port[0] = 21 hfsplus: cannot replace xattr device syz_tun entered promiscuous mode device syz_tun left promiscuous mode hfsplus: unable to parse mount options hfsplus: unable to parse mount options hfsplus: cannot replace xattr hfsplus: cannot replace xattr IPVS: ftp: loaded support on port[0] = 21 hfsplus: unable to parse mount options audit: type=1800 audit(1676725002.983:1948): pid=27360 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="file0" dev="sda1" ino=15844 res=0 audit: type=1804 audit(1676725002.983:1949): pid=27360 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir3175116739/syzkaller.ZZJbUx/505/file0" dev="sda1" ino=15844 res=1 hfsplus: cannot replace xattr device syz_tun entered promiscuous mode device syz_tun left promiscuous mode audit: type=1800 audit(1676725003.263:1950): pid=27397 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="file0" dev="sda1" ino=15880 res=0 hfsplus: cannot replace xattr IPVS: ftp: loaded support on port[0] = 21 hfsplus: cannot replace xattr