INFO: task syz-executor.4:3835 blocked for more than 143 seconds.
      Not tainted 6.1.87-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:24496 pid:3835  ppid:3570   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0x142d/0x4550 kernel/sched/core.c:6558
 schedule+0xbf/0x180 kernel/sched/core.c:6634
 xlog_grant_head_wait+0x3b6/0xa00 fs/xfs/xfs_log.c:307
 xlog_grant_head_check+0x295/0x480
 xfs_log_reserve+0x3e1/0xc30 fs/xfs/xfs_log.c:486
 xfs_trans_reserve+0x239/0x6a0 fs/xfs/xfs_trans.c:194
 xfs_trans_alloc+0x41e/0x890 fs/xfs/xfs_trans.c:283
 xfs_trans_alloc_inode+0x129/0x450 fs/xfs/xfs_trans.c:1191
 xfs_attr_set+0xa4e/0x1660 fs/xfs/libxfs/xfs_attr.c:1024
 xfs_attr_change fs/xfs/xfs_xattr.c:106 [inline]
 xfs_xattr_set+0x227/0x3a0 fs/xfs/xfs_xattr.c:151
 __vfs_setxattr+0x3e7/0x420 fs/xattr.c:182
 __vfs_setxattr_noperm+0x12a/0x5e0 fs/xattr.c:216
 vfs_setxattr+0x21d/0x420 fs/xattr.c:309
 do_setxattr fs/xattr.c:594 [inline]
 setxattr+0x250/0x2b0 fs/xattr.c:617
 path_setxattr+0x1bc/0x2a0 fs/xattr.c:636
 __do_sys_lsetxattr fs/xattr.c:659 [inline]
 __se_sys_lsetxattr fs/xattr.c:655 [inline]
 __x64_sys_lsetxattr+0xb4/0xd0 fs/xattr.c:655
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f83b307dea9
RSP: 002b:00007f83b3e470c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
RAX: ffffffffffffffda RBX: 00007f83b31abf80 RCX: 00007f83b307dea9
RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000020000000
RBP: 00007f83b30ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fffe R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f83b31abf80 R15: 00007ffdccda2ef8
 </TASK>
INFO: task syz-executor.4:3902 blocked for more than 144 seconds.
      Not tainted 6.1.87-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:26072 pid:3902  ppid:3570   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0x142d/0x4550 kernel/sched/core.c:6558
 schedule+0xbf/0x180 kernel/sched/core.c:6634
 xlog_grant_head_wait+0x3b6/0xa00 fs/xfs/xfs_log.c:307
 xlog_grant_head_check+0x295/0x480
 xfs_log_reserve+0x3e1/0xc30 fs/xfs/xfs_log.c:486
 xfs_trans_reserve+0x239/0x6a0 fs/xfs/xfs_trans.c:194
 xfs_trans_alloc+0x41e/0x890 fs/xfs/xfs_trans.c:283
 xfs_trans_alloc_icreate+0xc5/0x2b0 fs/xfs/xfs_trans.c:1246
 xfs_create+0x749/0x1360 fs/xfs/xfs_inode.c:1002
 xfs_generic_create+0x48d/0xd70 fs/xfs/xfs_iops.c:199
 lookup_open fs/namei.c:3484 [inline]
 open_last_lookups fs/namei.c:3552 [inline]
 path_openat+0x12f1/0x2e60 fs/namei.c:3782
 do_filp_open+0x230/0x480 fs/namei.c:3812
 do_sys_openat2+0x13b/0x500 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1345
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f83b307dea9
RSP: 002b:00007f83b3e260c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f83b31ac050 RCX: 00007f83b307dea9
RDX: 0000000000145842 RSI: 0000000020000440 RDI: ffffffffffffff9c
RBP: 00007f83b30ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f83b31ac050 R15: 00007ffdccda2ef8
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8d12ae50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8d12b650 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by khungtaskd/28:
 #0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 #0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
 #0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6494
2 locks held by getty/3306:
 #0: ffff888028695098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
 #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2188
3 locks held by kworker/0:8/3614:
 #0: ffff888012470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
 #1: ffffc9000505fd20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
 #2: ffffffff8e299fa8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:263
2 locks held by kworker/1:5/3618:
 #0: ffff888012472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
 #1: 
ffffc9000506fd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
4 locks held by kworker/u4:7/3710:
 #0: ffff888012616938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
 #1: ffffc900052f7d20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
 #2: ffffffff8e28dd50 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf1/0xb60 net/core/net_namespace.c:563
 #3: ffffffff8e299fa8 (rtnl_mutex){+.+.}-{3:3}, at: fib6_rules_net_exit_batch+0x1c/0xc0 net/ipv6/fib6_rules.c:506
3 locks held by syz-executor.4/3835:
 #0: ffff88802344a460 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
 #1: ffff888070496fb8 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
 #1: ffff888070496fb8 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: vfs_setxattr+0x1dd/0x420 fs/xattr.c:308
 #2: ffff88802344a650 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_inode+0x129/0x450 fs/xfs/xfs_trans.c:1191
3 locks held by syz-executor.4/3902:
 #0: ffff88802344a460 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
 #1: ffff888070495878 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
 #1: ffff888070495878 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: open_last_lookups fs/namei.c:3549 [inline]
 #1: ffff888070495878 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: path_openat+0x7b6/0x2e60 fs/namei.c:3782
 #2: ffff88802344a650 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_icreate+0xc5/0x2b0 fs/xfs/xfs_trans.c:1246
4 locks held by kworker/0:14/4199:
 #0: ffff8880b983aa18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0xa8/0x140 kernel/sched/core.c:545
 #1: ffff8880b9827788 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x43d/0x770 kernel/sched/psi.c:1000
 #2: ffff8880b9828358 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260 kernel/time/timer.c:999
 #3: ffffffff91f447f0 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x68/0x4e0 lib/debugobjects.c:697
2 locks held by kworker/1:15/4304:
 #0: ffff888012470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
 #1: ffffc90012fbfd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
2 locks held by kworker/u4:14/5078:
 #0: ffff8880b983aa18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0xa8/0x140 kernel/sched/core.c:545
 #1: ffff8880b9827788 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x43d/0x770 kernel/sched/psi.c:1000
2 locks held by syz-executor.3/6271:
 #0: ffffffff8e299fa8 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
 #0: ffffffff8e299fa8 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3a/0x1b0 drivers/net/tun.c:3487
 #1: ffffffff8d130278 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
 #1: ffffffff8d130278 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4f0/0x930 kernel/rcu/tree_exp.h:962
5 locks held by syz-executor.1/6946:
1 lock held by syz-executor.0/6963:
 #0: ffffffff8cfe7f28 (sched_core_mutex){+.+.}-{3:3}, at: sched_core_get+0x49/0x1d0 kernel/sched/core.c:398

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

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.87-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1b0/0x3f0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
 watchdog+0xf88/0xfd0 kernel/hung_task.c:377
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3549 Comm: syz-fuzzer Not tainted 6.1.87-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0033:0x42b980
Code: 89 4a 58 90 90 48 8b 84 24 a0 00 00 00 e8 58 30 fe ff 48 8b 94 24 88 00 00 00 48 8b 9c 24 a8 00 00 00 48 8d 42 48 0f 1f 40 00 <e8> 5b 4f 00 00 48 85 c0 74 4d 49 8b 56 30 48 8b 92 d0 00 00 00 48
RSP: 002b:000000c0010edee0 EFLAGS: 00000206
RAX: 000000c000044548 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 000000c000044500 RSI: 000000c000891a78 RDI: 0000000000000081
RBP: 000000c0010edf70 R08: 0000000000000081 R09: 0000000000000000
R10: 00007efe8c8f7ea0 R11: 0000000000000000 R12: 000000c0010edf60
R13: 0000000000000001 R14: 000000c0004b7040 R15: 0000000000000001
FS:  000000c0010e0490 GS:  0000000000000000