INFO: task syz.2.79:4009 blocked for more than 143 seconds.
      Not tainted 5.15.164-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.79        state:D stack:22176 pid: 4009 ppid:  3567 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 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_setxattr fs/xattr.c:646 [inline]
 __se_sys_setxattr fs/xattr.c:642 [inline]
 __x64_sys_setxattr+0xb7/0xd0 fs/xattr.c:642
 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: 0033:0x7f46eccff9f9
RSP: 002b:00007f46eb17c038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f46ece9bf80 RCX: 00007f46eccff9f9
RDX: 0000000020000100 RSI: 0000000020000340 RDI: 0000000020000040
RBP: 00007f46ecd6d8ee R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fc21 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f46ece9bf80 R15: 00007ffd3cce0328
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/1:1/24:
 #0: ffff888011c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
 #1: ffffc90000defd20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
 #2: ffffffff8da308c8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:251
1 lock held by khungtaskd/27:
 #0: ffffffff8c91fb20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/1:2/1074:
 #0: ffff888011c72138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
 #1: ffffc900048cfd20 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
2 locks held by getty/3323:
 #0: ffff888024665098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
 #1: ffffc9000229b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
2 locks held by kworker/1:4/3570:
 #0: ffff888019665538 ((wq_completion)xfs-sync/loop2){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
 #1: ffffc90002e47d20 ((work_completion)(&(&log->l_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
3 locks held by kworker/u5:2/3578:
 #0: ffff88807db94138 ((wq_completion)hci2){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
 #1: ffffc90002eb7d20 ((work_completion)(&hdev->error_reset)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
 #2: ffff888078f70ff0 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_open+0xa4/0x1330 net/bluetooth/hci_core.c:1446
6 locks held by kworker/u4:6/3700:
 #0: ffff888011dd5138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
 #1: ffffc900031a7d20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
 #2: ffffffff8da24d10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf1/0xb60 net/core/net_namespace.c:561
 #3: ffffffff8da308c8 (rtnl_mutex){+.+.}-{3:3}, at: wg_netns_pre_exit+0x1b/0x1d0 drivers/net/wireguard/device.c:404
 #4: ffff88807d8413e8 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_netns_pre_exit+0xb6/0x1d0 drivers/net/wireguard/device.c:409
 #5: ffffffff8c9240e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
 #5: ffffffff8c9240e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x280/0x740 kernel/rcu/tree_exp.h:845
3 locks held by syz.2.79/4009:
 #0: ffff88807cc0e460 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
 #1: ffff888060ccd580 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
 #1: ffff888060ccd580 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: vfs_setxattr+0x1dd/0x420 fs/xattr.c:302
 #2: ffff88807cc0e650 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_inode+0x129/0x450 fs/xfs/xfs_trans.c:1047

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

NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.164-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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: 3555 Comm: syz-executor Not tainted 5.15.164-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:196
Code: 00 00 00 0f 1f 00 53 48 89 fb e8 17 00 00 00 48 8b 3d 08 ed 68 0c 48 89 de 5b e9 c7 fc 48 00 cc cc cc cc cc cc cc 48 8b 04 24 <65> 48 8b 0d 54 0e 82 7e 65 8b 15 55 0e 82 7e f7 c2 00 01 ff 00 74
RSP: 0018:ffffc900030578c8 EFLAGS: 00000246
RAX: ffffffff88d9ba47 RBX: ffff88807bce8280 RCX: ffff888078a4d940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003057a90 R08: ffffffff88d9ba0a R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88807bce8000 R15: 1ffff1100f79d050
FS:  00005555568fc500(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc81c685d58 CR3: 00000000721f5000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 tcp_release_cb+0x87/0x350 net/ipv4/tcp_output.c:1083
 release_sock+0xaf/0x1c0 net/core/sock.c:3271
 tcp_recvmsg+0x25d/0x7f0 net/ipv4/tcp.c:2564
 inet_recvmsg+0x157/0x280 net/ipv4/af_inet.c:870
 sock_recvmsg_nosec net/socket.c:966 [inline]
 sock_recvmsg net/socket.c:984 [inline]
 sock_read_iter+0x353/0x480 net/socket.c:1057
 call_read_iter include/linux/fs.h:2166 [inline]
 new_sync_read fs/read_write.c:404 [inline]
 vfs_read+0xa93/0xe10 fs/read_write.c:485
 ksys_read+0x1a2/0x2c0 fs/read_write.c:623
 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: 0033:0x7f69803753fd
Code: a8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb b5 e8 78 47 00 00 0f 1f 84 00 00 00 00 00 80 3d 41 41 17 00 00 74 17 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 5b c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 ec
RSP: 002b:00007fffb8098cc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f69803753fd
RDX: 0000000000000004 RSI: 00007fffb8098cdc RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007fffb81060b0 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb80990d0
R13: 0000000000000004 R14: 00007fffb8098cdc R15: 00007fffb8098d70
 </TASK>