INFO: task hung in vfs

INFO: task hung in vfs_setxattr (3)
Status: upstream: reported syz repro on 2020/09/15 04:59
Reported-by: syzbot+738cca7d7d9754493513@syzkaller.appspotmail.com
First crash: 18d, last: 4d11h

Cause bisection: introduced by (bisect log):

commit 6a3c7f5c87854e948c3c234e5f5e745c7c553722
Author: Nikolay Borisov <nborisov@suse.com>
Date: Thu May 28 08:05:13 2020 +0000

btrfs: don't balance btree inode pages from buffered write path

Crash: INFO: task hung in vfs_setxattr (log)
Repro: syz .config
similar bugs (6):
Kernel	Title	Repro	Count	Last	Reported	Patched	Status
upstream	INFO: task hung in vfs_setxattr (2)		1	122d	122d	0/17	auto-closed as invalid on 2020/07/28 17:13
android-49	INFO: task hung in vfs_setxattr		4	779d	805d	0/3	auto-closed as invalid on 2019/02/22 13:09
upstream	INFO: task hung in vfs_setxattr		46	652d	812d	0/17	auto-closed as invalid on 2019/06/15 01:37
android-414	INFO: task hung in vfs_setxattr		1	528d	528d	0/1	auto-closed as invalid on 2019/10/16 16:43
linux-4.19	INFO: task hung in vfs_setxattr		3	324d	386d	0/1	auto-closed as invalid on 2020/03/08 20:30
android-44	INFO: task hung in vfs_setxattr	C	3	403d	408d	0/2	public: reported C repro on 2019/08/17 15:36
Sample crash report:
INFO: task syz-executor.5:30612 blocked for more than 143 seconds.
      Not tainted 5.9.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:29792 pid:30612 ppid:  6894 flags:0x00000000
Call Trace:
 context_switch kernel/sched/core.c:3778 [inline]
 __schedule+0xec9/0x2280 kernel/sched/core.c:4527
 schedule+0xd0/0x2a0 kernel/sched/core.c:4602
 rwsem_down_write_slowpath+0x603/0xc60 kernel/locking/rwsem.c:1235
 __down_write kernel/locking/rwsem.c:1389 [inline]
 down_write+0x137/0x150 kernel/locking/rwsem.c:1532
 inode_lock include/linux/fs.h:779 [inline]
 vfs_setxattr+0xc7/0x270 fs/xattr.c:282
 setxattr+0x23d/0x330 fs/xattr.c:548
 path_setxattr+0x170/0x190 fs/xattr.c:567
 __do_sys_setxattr fs/xattr.c:582 [inline]
 __se_sys_setxattr fs/xattr.c:578 [inline]
 __x64_sys_setxattr+0xc0/0x160 fs/xattr.c:578
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e179
Code: Bad RIP value.
RSP: 002b:00007f6fa21b0c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 0000000000032500 RCX: 000000000045e179
RDX: 0000000000000000 RSI: 0000000020000100 RDI: 00000000200000c0
RBP: 000000000118d0e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118d09c
R13: 00007fff6fa781df R14: 00007f6fa21b19c0 R15: 000000000118d09c

Showing all locks held in the system:
1 lock held by khungtaskd/1169:
 #0: ffffffff8a067f00 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:5852
1 lock held by systemd-udevd/3920:
1 lock held by in:imklog/6541:
 #0: ffff88809206ae30 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:930
1 lock held by syz-executor.4/6888:
 #0: ffffffff8a071068 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
 #0: ffffffff8a071068 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x27e/0x610 kernel/rcu/tree_exp.h:838
1 lock held by syz-executor.1/6893:
 #0: ffffffff8a071068 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
 #0: ffffffff8a071068 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4f2/0x610 kernel/rcu/tree_exp.h:838
2 locks held by syz-executor.1/8472:
 #0: ffff8880763f2450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880763f2450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888078223150 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888078223150 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/8698:
 #0: ffff8880a04e6450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880a04e6450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880837ac9d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880837ac9d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/9368:
 #0: ffff8880a2fa0450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880a2fa0450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888087f9a8d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888087f9a8d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/9928:
 #0: ffff88808dc0e450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88808dc0e450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888078214450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888078214450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/10133:
 #0: ffff888071d3e450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888071d3e450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880783fc390 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880783fc390 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/10537:
 #0: ffff88809aba4450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88809aba4450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888087f1c3d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888087f1c3d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/10841:
 #0: ffff88808ed14450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88808ed14450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880634c8a10 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880634c8a10 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/10972:
 #0: ffff88808dcd8450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88808dcd8450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880836e8150 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880836e8150 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.1/11083:
 #0: ffff888087620450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888087620450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880634b6950 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880634b6950 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/11091:
 #0: ffff8880955f2450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880955f2450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880781be350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880781be350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/11139:
 #0: ffff8880959d8450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880959d8450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888078349250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888078349250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/11198:
 #0: ffff888091e12450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888091e12450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888063517850 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888063517850 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/11307:
 #0: ffff88806ef52450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88806ef52450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888063545950 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888063545950 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/11495:
 #0: ffff88805806c450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88805806c450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880783c6a50 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880783c6a50 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/12122:
 #0: ffff88808844a450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88808844a450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888063710950 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888063710950 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/12149:
 #0: ffff888058458450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888058458450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880637283d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880637283d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/12422:
 #0: ffff888092d6c450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888092d6c450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888087f07950 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888087f07950 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.1/13738:
 #0: ffff888089a0e450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888089a0e450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880481ce310 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880481ce310 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/13786:
 #0: ffff88806ec6c450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88806ec6c450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888048235a50 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888048235a50 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/14110:
 #0: ffff888093a54450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888093a54450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888048352290 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888048352290 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.1/14201:
 #0: ffff888041b76450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888041b76450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880483582d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880483582d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/14378:
 #0: ffff88809a646450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88809a646450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888033807890 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888033807890 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.1/15021:
 #0: ffff8880a8ac0450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880a8ac0450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880481372d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880481372d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/15235:
 #0: ffff88804cae6450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88804cae6450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88806341c1d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88806341c1d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/15622:
 #0: ffff8880a2b86450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880a2b86450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880634d5810 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880634d5810 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/16012:
 #0: ffff8880437da450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880437da450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880481aa810 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880481aa810 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/16306:
 #0: ffff888043726450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888043726450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88804839e310 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88804839e310 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/16330:
 #0: ffff888093784450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888093784450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888048105790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888048105790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/16398:
 #0: ffff888075250450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888075250450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888033950990 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888033950990 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/16621:
 #0: ffff88805318e450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88805318e450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888033a1f7d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888033a1f7d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/17282:
 #0: ffff88809dca8450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88809dca8450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888033b2f390 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888033b2f390 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/17598:
 #0: ffff8880299de450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880299de450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888015c21910 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888015c21910 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.1/17918:
 #0: ffff88806ecf8450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88806ecf8450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888015d2b390 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888015d2b390 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/18303:
 #0: ffff888076e36450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888076e36450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888015cf1250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888015cf1250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/18413:
 #0: ffff888034638450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888034638450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888033a0c450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888033a0c450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/18907:
 #0: ffff888078e1e450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888078e1e450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888015c13890 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888015c13890 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/19215:
 #0: ffff888097966450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888097966450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888015c5e350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888015c5e350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/19217:
 #0: ffff8882143c4450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8882143c4450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888015f48850 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888015f48850 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/19980:
 #0: ffff888210ce6450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888210ce6450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88800e425250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88800e425250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/20047:
 #0: ffff888093c4e450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888093c4e450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88800e473310 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88800e473310 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/20075:
 #0: ffff88821385e450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88821385e450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888217dac390 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888217dac390 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/20128:
 #0: ffff888036db6450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888036db6450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88800e48d410 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88800e48d410 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/20483:
 #0: ffff888032054450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888032054450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88800e54d8d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88800e54d8d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/20565:
 #0: ffff888053354450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888053354450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88800e566350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88800e566350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/20929:
 #0: ffff888017d30450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888017d30450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888012a72890 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888012a72890 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/21165:
 #0: ffff88808493e450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88808493e450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88800e5f5a10 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88800e5f5a10 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/21336:
 #0: ffff8880251c8450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880251c8450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888012a16790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888012a16790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/21530:
 #0: ffff8880716dc450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880716dc450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88800e525810 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88800e525810 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/22419:
 #0: ffff888212fc0450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888212fc0450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88800e53a890 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88800e53a890 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/23362:
 #0: ffff888036e58450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888036e58450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880129cc310 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880129cc310 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.1/23687:
 #0: ffff8880395e6450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880395e6450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888013f58410 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888013f58410 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/23726:
 #0: ffff8880934dc450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880934dc450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888013f73190 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888013f73190 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/24427:
 #0: ffff88820855e450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88820855e450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888209044810 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888209044810 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/24694:
 #0: ffff88809bc36450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88809bc36450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888015fa8450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888015fa8450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/24719:
 #0: ffff88809a6fe450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88809a6fe450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88801eec8a10 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88801eec8a10 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/24960:
 #0: ffff888207b22450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888207b22450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88801ef348d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88801ef348d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/25140:
 #0: ffff888090bda450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888090bda450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88801ef92a90 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88801ef92a90 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.1/25391:
 #0: ffff888084244450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888084244450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880129517d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880129517d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/26328:
 #0: ffff8880321f2450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880321f2450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888013fe7a50 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888013fe7a50 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/26855:
 #0: ffff88803cb16450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88803cb16450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888012ea5350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888012ea5350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/27682:
 #0: ffff8880418cc450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880418cc450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888017f28950 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888017f28950 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/28070:
 #0: ffff88809f42c450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88809f42c450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888017f95210 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888017f95210 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/28382:
 #0: ffff88820dad8450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88820dad8450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888017edd250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888017edd250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/28387:
 #0: ffff888070a56450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888070a56450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888017f0f850 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888017f0f850 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/28400:
 #0: ffff888204356450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888204356450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888017e70250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888017e70250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/28721:
 #0: ffff88808e570450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88808e570450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888012e408d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888012e408d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/29269:
 #0: ffff8882044b4450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8882044b4450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888017f80450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888017f80450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/29695:
 #0: ffff888070228450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888070228450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88801ef46a50 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88801ef46a50 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/30252:
 #0: ffff8880934d0450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880934d0450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880156aa910 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880156aa910 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/30297:
 #0: ffff8882052ac450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8882052ac450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8882091ff890 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8882091ff890 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/30598:
 #0: ffff8881ffd66450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881ffd66450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888209190790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888209190790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/30600:
 #0: ffff8881ffe14450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881ffe14450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888209297150 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888209297150 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/30612:
 #0: ffff8881ffd66450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881ffd66450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888209190790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888209190790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/30783:
 #0: ffff88820cad6450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88820cad6450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888017f5d8d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888017f5d8d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/31161:
 #0: ffff888206b6a450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888206b6a450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88801c65ba10 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88801c65ba10 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.1/31322:
 #0: ffff88820dae0450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88820dae0450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88801c750150 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88801c750150 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/31818:
 #0: ffff888201b06450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888201b06450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888209387990 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888209387990 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/31904:
 #0: ffff8882068ec450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8882068ec450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8882092d9910 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8882092d9910 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/32155:
 #0: ffff8881ff180450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881ff180450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881fc419790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881fc419790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/300:
 #0: ffff8882048e4450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8882048e4450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888209379350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888209379350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/339:
 #0: ffff8881fb082450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881fb082450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880157e0890 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880157e0890 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/413:
 #0: ffff88802996a450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88802996a450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888034748310 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888034748310 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/549:
 #0: ffff888201dba450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888201dba450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8882092c7350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8882092c7350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/1071:
 #0: ffff8882020ce450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8882020ce450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881fc507990 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881fc507990 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/1462:
 #0: ffff8880a7af0450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880a7af0450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8882093119d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8882093119d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/1700:
 #0: ffff888201ef6450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888201ef6450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880346b4a10 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880346b4a10 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/1810:
 #0: ffff8882067c8450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8882067c8450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881fc5142d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881fc5142d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/2368:
 #0: ffff8882021ce450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8882021ce450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881fc507350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881fc507350 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/2789:
 #0: ffff8881f956e450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881f956e450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881fc669290 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881fc669290 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.1/3026:
 #0: ffff8880581b4450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880581b4450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881fc734450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881fc734450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/3412:
 #0: ffff88820bc0c450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88820bc0c450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881fc403910 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881fc403910 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/3569:
 #0: ffff88809be94450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88809be94450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff88803463d250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff88803463d250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/4198:
 #0: ffff888070572450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888070572450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881fc7911d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881fc7911d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/4625:
 #0: ffff888206716450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888206716450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f6c09790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f6c09790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/4786:
 #0: ffff88820d166450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88820d166450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f6d5c1d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f6d5c1d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/5363:
 #0: ffff8881f5b8c450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881f5b8c450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f6cb0290 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f6cb0290 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/5726:
 #0: ffff888070290450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888070290450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8880008b77d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8880008b77d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/6274:
 #0: ffff888093658450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888093658450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888012db2210 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888012db2210 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/6635:
 #0: ffff8881f83b2450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881f83b2450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f6dff7d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f6dff7d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/7270:
 #0: ffff888048d0a450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888048d0a450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f6dd4410 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f6dd4410 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/7358:
 #0: ffff8880a1f62450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880a1f62450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8882093d4910 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8882093d4910 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/7673:
 #0: ffff8881f4cea450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881f4cea450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888012d588d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888012d588d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/8213:
 #0: ffff8881ef572450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881ef572450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f10bba90 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f10bba90 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/8553:
 #0: ffff8881f4058450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881f4058450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f11b8290 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f11b8290 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.4/8669:
 #0: ffff8881efeb6450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881efeb6450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881fc7ea950 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881fc7ea950 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/9669:
 #0: ffff888039530450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888039530450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff888012db6a10 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff888012db6a10 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/9998:
 #0: ffff8881f2892450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881f2892450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f128b250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f128b250 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.1/10137:
 #0: ffff8881ef656450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881ef656450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f11f8850 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f11f8850 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/10297:
 #0: ffff8881f3acc450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881f3acc450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f12f9450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f12f9450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/10378:
 #0: ffff8881fb65a450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881fb65a450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f13658d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f13658d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/10390:
 #0: ffff8881ee290450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881ee290450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f1373910 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f1373910 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/10480:
 #0: ffff8881effb8450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881effb8450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f12649d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f12649d0 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/10664:
 #0: ffff88820ac64450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88820ac64450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881ec4caa50 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881ec4caa50 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.0/10931:
 #0: ffff888204bee450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff888204bee450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f1059290 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f1059290 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.3/11282:
 #0: ffff8881fb36a450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881fb36a450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f6ee8290 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f6ee8290 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.2/11686:
 #0: ffff8881f9614450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881f9614450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f6e52450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f6e52450 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/11819:
 #0: ffff88820356a450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88820356a450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f1111990 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f1111990 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/12593:
 #0: ffff8880a3dfa450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8880a3dfa450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881ec4ca410 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881ec4ca410 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.5/12656:
 #0: ffff88805324a450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff88805324a450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881f114f790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881f114f790 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282
2 locks held by syz-executor.1/12812:
 #0: ffff8881f8c68450 (sb_writers#17){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1643 [inline]
 #0: ffff8881f8c68450 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:354
 #1: ffff8881ec477390 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:779 [inline]
 #1: ffff8881ec477390 (&sb->s_type->i_mutex_key#22){+.+.}-{3:3}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:282

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 1169 Comm: khungtaskd Not tainted 5.9.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x198/0x1fd lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x70/0xb1 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1b3/0x223 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline]
 watchdog+0xd7d/0x1000 kernel/hung_task.c:295
 kthread+0x3b5/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3911 Comm: systemd-journal Not tainted 5.9.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:0xffffffffa000cc9e
Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 0f 1f 44 00 00 55 <48> 89 e5 48 81 ec 00 00 00 00 53 41 55 41 56 41 57 31 c0 45 31 ed
RSP: 0018:ffffc900056f7d80 EFLAGS: 00000246
RAX: 1ffff920001b2c06 RBX: ffff8880a6b50800 RCX: dffffc0000000000
RDX: ffff8880a69be200 RSI: ffffc90000d96038 RDI: ffffc900056f7e38
RBP: ffffc90000d96000 R08: 0000000000000001 R09: 0000000000000001
R10: 000000007fff0000 R11: 0000000000000000 R12: dffffc0000000000
R13: 000000007fff0000 R14: 000000007fff0000 R15: ffffc900056f7e38
FS:  00007f37311ea8c0(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f372e6e5000 CR3: 00000000a6e60000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Crashes (3):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	Maintainers
ci-upstream-kasan-gce-selinux-root	2020/09/24 17:46	upstream	c9c9e6a4	54289b08	.config	log	report	syz	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-root	2020/09/24 03:45	upstream	805c6d3c	287cd75a	.config	log	report	syz	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce-selinux-root	2020/09/11 04:49	upstream	7fe10096	409809d8	.config	log	report	syz	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk