INFO: task syz-executor.5:5777 blocked for more than 143 seconds.
      Not tainted 6.6.0-syzkaller-14651-gd2f51b3516da #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:25544 pid:5777  tgid:5757  ppid:5428   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5376 [inline]
 __schedule+0x1960/0x4a80 kernel/sched/core.c:6688
 __schedule_loop kernel/sched/core.c:6763 [inline]
 schedule+0x149/0x260 kernel/sched/core.c:6778
 __wait_on_freeing_inode fs/inode.c:2279 [inline]
 find_inode_fast+0x319/0x450 fs/inode.c:936
 iget_locked+0xcb/0x830 fs/inode.c:1301
 __ext4_iget+0x264/0x3f00 fs/ext4/inode.c:4712
 ext4_xattr_inode_cache_find fs/ext4/xattr.c:1542 [inline]
 ext4_xattr_inode_lookup_create fs/ext4/xattr.c:1577 [inline]
 ext4_xattr_set_entry+0x2095/0x3fb0 fs/ext4/xattr.c:1719
 ext4_xattr_block_set+0xb15/0x35e0 fs/ext4/xattr.c:2039
 ext4_xattr_set_handle+0xcdf/0x1570 fs/ext4/xattr.c:2456
 ext4_xattr_set+0x241/0x3d0 fs/ext4/xattr.c:2558
 __vfs_setxattr+0x460/0x4a0 fs/xattr.c:201
 __vfs_setxattr_noperm+0x12e/0x5e0 fs/xattr.c:235
 vfs_setxattr+0x221/0x420 fs/xattr.c:322
 do_setxattr fs/xattr.c:630 [inline]
 setxattr+0x25d/0x2f0 fs/xattr.c:653
 path_setxattr+0x1c0/0x2a0 fs/xattr.c:672
 __do_sys_setxattr fs/xattr.c:688 [inline]
 __se_sys_setxattr fs/xattr.c:684 [inline]
 __x64_sys_setxattr+0xbb/0xd0 fs/xattr.c:684
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f3aedc7c899
RSP: 002b:00007f3aeea730c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f3aedd9c050 RCX: 00007f3aedc7c899
RDX: 00000000200005c0 RSI: 0000000020000180 RDI: 00000000200000c0
RBP: 00007f3aedcd8ad0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000002000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3aedd9c050 R15: 00007ffc6bd46bd8
 </TASK>
INFO: task syz-executor.5:5779 blocked for more than 144 seconds.
      Not tainted 6.6.0-syzkaller-14651-gd2f51b3516da #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:25672 pid:5779  tgid:5757  ppid:5428   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5376 [inline]
 __schedule+0x1960/0x4a80 kernel/sched/core.c:6688
 __schedule_loop kernel/sched/core.c:6763 [inline]
 schedule+0x149/0x260 kernel/sched/core.c:6778
 mb_cache_entry_wait_unused+0x166/0x250 fs/mbcache.c:148
 ext4_evict_ea_inode+0x14a/0x2f0 fs/ext4/xattr.c:480
 ext4_evict_inode+0x184/0xf20 fs/ext4/inode.c:180
 evict+0x2a4/0x620 fs/inode.c:664
 ext4_xattr_set_entry+0x13ef/0x3fb0 fs/ext4/xattr.c:1870
 ext4_xattr_block_set+0x6a2/0x35e0 fs/ext4/xattr.c:1970
 ext4_xattr_set_handle+0xcdf/0x1570 fs/ext4/xattr.c:2456
 ext4_xattr_set+0x241/0x3d0 fs/ext4/xattr.c:2558
 __vfs_setxattr+0x460/0x4a0 fs/xattr.c:201
 __vfs_setxattr_noperm+0x12e/0x5e0 fs/xattr.c:235
 vfs_setxattr+0x221/0x420 fs/xattr.c:322
 do_setxattr fs/xattr.c:630 [inline]
 setxattr+0x25d/0x2f0 fs/xattr.c:653
 path_setxattr+0x1c0/0x2a0 fs/xattr.c:672
 __do_sys_setxattr fs/xattr.c:688 [inline]
 __se_sys_setxattr fs/xattr.c:684 [inline]
 __x64_sys_setxattr+0xbb/0xd0 fs/xattr.c:684
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f3aedc7c899
RSP: 002b:00007f3aeea520c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f3aedd9c120 RCX: 00007f3aedc7c899
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 00000000200001c0
RBP: 00007f3aedcd8ad0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3aedd9c120 R15: 00007ffc6bd46bd8
 </TASK>

Showing all locks held in the system:
1 lock held by pool_workqueue_/3:
 #0: ffffffff8d932a78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
 #0: ffffffff8d932a78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:996
1 lock held by khungtaskd/29:
 #0: ffffffff8d92d0a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
 #0: ffffffff8d92d0a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
 #0: ffffffff8d92d0a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6613
2 locks held by kworker/u4:7/1559:
1 lock held by udevd/4513:
3 locks held by kworker/1:3/4800:
2 locks held by getty/4820:
 #0: ffff88814b43c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
2 locks held by kworker/0:6/5529:
 #0: ffff888012c72938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
 #0: ffff888012c72938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1400 kernel/workqueue.c:2703
 #1: ffffc90008f27d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
 #1: ffffc90008f27d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1400 kernel/workqueue.c:2703
3 locks held by syz-executor.5/5777:
 #0: ffff88802935a418 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:404
 #1: ffff88806bef0e00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
 #1: ffff88806bef0e00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: vfs_setxattr+0x1e1/0x420 fs/xattr.c:321
 #2: ffff88806bef0ac8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
 #2: ffff88806bef0ac8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x277/0x1570 fs/ext4/xattr.c:2371
3 locks held by syz-executor.5/5779:
 #0: ffff88802935a418 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:404
 #1: ffff88806be37200 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
 #1: ffff88806be37200 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x1e1/0x420 fs/xattr.c:321
 #2: ffff88806be36ec8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
 #2: ffff88806be36ec8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x277/0x1570 fs/ext4/xattr.c:2371
1 lock held by udevd/6045:
1 lock held by syz-executor.0/10814:

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

NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.6.0-syzkaller-14651-gd2f51b3516da #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xfa9/0xff0 kernel/hung_task.c:379
 kthread+0x2d3/0x370 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6014 Comm: udevd Not tainted 6.6.0-syzkaller-14651-gd2f51b3516da #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
RIP: 0010:security_path_symlink+0x0/0x130 security/security.c:1783
Code: d6 e0 52 fd eb eb 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 5a ff ff ff 48 89 ef e8 5c 02 af fd e9 4d ff ff ff 0f 1f 80 00 00 00 00 <66> 0f 1f 00 55 41 57 41 56 41 55 41 54 53 49 89 d6 49 89 f7 49 89
RSP: 0018:ffffc90004c1fdf8 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffc90004c1fe80 RCX: 1ffff110030e8660
RDX: ffff888018743320 RSI: ffff888076623d60 RDI: ffffc90004c1fe80
RBP: ffffc90004c1ff00 R08: ffffffff81fe3f11 R09: 1ffff1100ecc47be
R10: dffffc0000000000 R11: ffffed100ecc47bf R12: ffffc90004c1fe80
R13: ffff88807b09e600 R14: ffff888076623d60 R15: ffff888018743300
FS:  00007fe8b4588c80(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff409b24d58 CR3: 0000000020479000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 do_symlinkat+0x136/0x3a0 fs/namei.c:4488
 __do_sys_symlink fs/namei.c:4511 [inline]
 __se_sys_symlink fs/namei.c:4509 [inline]
 __x64_sys_symlink+0x7e/0x90 fs/namei.c:4509
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fe8b4117ce7
Code: f0 ff ff 73 01 c3 48 8b 0d 3e 91 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 58 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 11 91 0d 00 f7 d8 64 89 01 48
RSP: 002b:00007ffc39f5fec8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 00007ffc39f5ff68 RCX: 00007fe8b4117ce7
RDX: 0000000000000000 RSI: 00007ffc39f60368 RDI: 00007ffc39f5ff68
RBP: 00005636a5d920b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc39f60368
R13: 00007ffc39f60ff8 R14: 00005636a5da5d00 R15: 00005636a5d920cc
 </TASK>