INFO: task syz.0.1297:8834 blocked for more than 143 seconds.
      Not tainted 5.15.168-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.1297      state:D stack:22304 pid: 8834 ppid:  3570 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5027 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
 schedule+0x11b/0x1f0 kernel/sched/core.c:6456
 xlog_grant_head_wait+0x381/0x900 fs/xfs/xfs_log.c:256
 xlog_grant_head_check+0x295/0x480
 xfs_log_reserve+0x3b8/0xb10 fs/xfs/xfs_log.c:464
 xfs_trans_reserve+0x23d/0x690 fs/xfs/xfs_trans.c:197
 xfs_trans_alloc+0x420/0x7f0 fs/xfs/xfs_trans.c:288
 xfs_trans_alloc_inode+0x129/0x450 fs/xfs/xfs_trans.c:1047
 xfs_attr_set+0x848/0x1460 fs/xfs/libxfs/xfs_attr.c:772
 xfs_xattr_set+0x227/0x3a0 fs/xfs/xfs_xattr.c:59
 __vfs_setxattr+0x3e7/0x420 fs/xattr.c:182
 __vfs_setxattr_noperm+0x12a/0x5e0 fs/xattr.c:216
 vfs_setxattr+0x21d/0x420 fs/xattr.c:303
 do_setxattr fs/xattr.c:588 [inline]
 setxattr+0x27e/0x2e0 fs/xattr.c:611
 path_setxattr+0x1bc/0x2a0 fs/xattr.c:630
 __do_sys_lsetxattr fs/xattr.c:653 [inline]
 __se_sys_lsetxattr fs/xattr.c:649 [inline]
 __x64_sys_lsetxattr+0xb4/0xd0 fs/xattr.c:649
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f02ebee9ff9
RSP: 002b:00007f02ea362038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
RAX: ffffffffffffffda RBX: 00007f02ec0a1f80 RCX: 00007f02ebee9ff9
RDX: 0000000020000040 RSI: 00000000200000c0 RDI: 0000000020000100
RBP: 00007f02ebf5c296 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fe37 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f02ec0a1f80 R15: 00007ffc6c513e28
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8c91fc20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by udevd/3028:
 #0: ffff8880b913a318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
2 locks held by getty/3329:
 #0: ffff88814ac22098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
 #1: ffffc90002b9e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
2 locks held by kworker/0:9/3722:
 #0: ffff888065f9c538 ((wq_completion)xfs-sync/loop0){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
 #1: ffffc90003297d20 ((work_completion)(&(&log->l_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
3 locks held by syz.0.1297/8834:
 #0: ffff888022cee460 (sb_writers#21){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
 #1: ffff88805fdf6480 (&sb->s_type->i_mutex_key#28){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
 #1: ffff88805fdf6480 (&sb->s_type->i_mutex_key#28){++++}-{3:3}, at: vfs_setxattr+0x1dd/0x420 fs/xattr.c:302
 #2: ffff888022cee650 (sb_internal#4){.+.+}-{0:0}, at: xfs_trans_alloc_inode+0x129/0x450 fs/xfs/xfs_trans.c:1047
2 locks held by udevd/11075:
 #0: ffff888020d1e518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x14d/0xa50 block/bdev.c:817
 #1: ffff888020f3b468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_open+0x68/0x100 drivers/block/loop.c:2055
1 lock held by syz.2.1856/11141:
 #0: ffff888020f3b468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xa9/0xbe0 drivers/block/loop.c:1365
1 lock held by syz.4.1860/11154:

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

NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.168-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
 watchdog+0xe72/0xeb0 kernel/hung_task.c:295
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3614 Comm: kworker/u4:4 Not tainted 5.15.168-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: phy3 ieee80211_iface_work
RIP: 0010:ieee80211_sta_active_ibss+0x1/0x2d0 net/mac80211/ibss.c:651
Code: f7 e8 1b c3 3d f7 e9 b5 fb ff ff e8 89 a9 bd f7 e8 0c c3 3d f7 e9 8d fc ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 <41> 57 41 56 41 55 41 54 53 50 48 89 fb 48 bd 00 00 00 00 00 fc ff
RSP: 0018:ffffc90002f27ab0 EFLAGS: 00000207
RAX: 0000000000000000 RBX: 000000000000c218 RCX: ffff888065275940
RDX: 0000000000000001 RSI: 000000000000c218 RDI: ffff888062454c80
RBP: ffffc90002f27c50 R08: ffffffff89c259c6 R09: fffff520005e4f49
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888062694000 R14: ffff888062455ad0 R15: ffff888062454c80
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2af797 CR3: 00000000664f4000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 ieee80211_sta_merge_ibss net/mac80211/ibss.c:1308 [inline]
 ieee80211_ibss_work+0x857/0x1480 net/mac80211/ibss.c:1713
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>