INFO: task syz-executor.0:13891 blocked for more than 143 seconds. Not tainted 6.2.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:23432 pid:13891 ppid:5482 flags:0x00004004 Call Trace: __schedule+0x17b7/0x4960 schedule+0xc3/0x180 find_inode_fast+0x2e8/0x3d0 iget_locked+0x9b/0x720 __ext4_iget+0x2ef/0x3d80 ext4_xattr_set_entry+0x1308/0x3960 ext4_xattr_block_set+0xbeb/0x3380 ext4_xattr_set_handle+0xabd/0x1280 ext4_xattr_set+0x218/0x370 __vfs_setxattr+0x334/0x380 __vfs_setxattr_noperm+0x106/0x4c0 vfs_setxattr+0x1d3/0x350 setxattr+0x182/0x1f0 path_setxattr+0x17d/0x230 __x64_sys_setxattr+0xb6/0xd0 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f85df08c0c9 RSP: 002b:00007f85dfe92168 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007f85df1abf80 RCX: 00007f85df08c0c9 RDX: 00000000200005c0 RSI: 0000000020000180 RDI: 00000000200000c0 RBP: 00007f85df0e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000002000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffc54708bf R14: 00007f85dfe92300 R15: 0000000000022000 INFO: task syz-executor.0:13904 blocked for more than 144 seconds. Not tainted 6.2.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:25864 pid:13904 ppid:5482 flags:0x00004004 Call Trace: __schedule+0x17b7/0x4960 schedule+0xc3/0x180 mb_cache_entry_wait_unused+0x16e/0x200 ext4_evict_ea_inode+0x169/0x2b0 ext4_evict_inode+0x175/0xec0 evict+0x262/0x550 ext4_xattr_set_entry+0x2792/0x3960 ext4_xattr_block_set+0x669/0x3380 ext4_xattr_set_handle+0xabd/0x1280 ext4_xattr_set+0x218/0x370 __vfs_setxattr+0x334/0x380 __vfs_setxattr_noperm+0x106/0x4c0 vfs_setxattr+0x1d3/0x350 setxattr+0x182/0x1f0 path_setxattr+0x17d/0x230 __x64_sys_setxattr+0xb6/0xd0 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f85df08c0c9 RSP: 002b:00007f85dfe71168 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007f85df1ac050 RCX: 00007f85df08c0c9 RDX: 0000000000000000 RSI: 0000000020000200 RDI: 00000000200001c0 RBP: 00007f85df0e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffc54708bf R14: 00007f85dfe71300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8bf1a310 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 1 lock held by rcu_tasks_trace/13: #0: ffffffff8bf1ab10 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 2 locks held by kworker/0:1/14: #0: ffff888011072538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x6dd/0x1010 #1: ffffc90000137d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x724/0x1010 1 lock held by khungtaskd/28: #0: ffffffff8bf1a140 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by kworker/u4:5/1157: 2 locks held by getty/4737: #0: ffff88802adeb098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x20/0x60 #1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5ed/0x1880 3 locks held by kworker/0:4/5079: #0: ffff888011070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x6dd/0x1010 #1: ffffc90003a3fd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x724/0x1010 #2: ffffffff8bf1f838 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 3 locks held by kworker/0:6/5081: #0: ffff888011070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x6dd/0x1010 #1: ffffc90003a5fd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x724/0x1010 #2: ffffffff8bf1f838 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 2 locks held by kworker/1:4/5485: #0: ffff888011070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x6dd/0x1010 #1: ffffc9000460fd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x724/0x1010 2 locks held by kworker/1:7/5603: #0: ffff888011070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x6dd/0x1010 #1: ffffc90004c2fd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x724/0x1010 2 locks held by kworker/1:8/5669: #0: ffff888011070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x6dd/0x1010 #1: ffffc90004c8fd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x724/0x1010 3 locks held by syz-executor.0/13891: #0: ffff888027d98460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3a/0x70 #1: ffff8880710c3628 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: vfs_setxattr+0x192/0x350 #2: ffff8880710c32f0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x23b/0x1280 3 locks held by syz-executor.0/13904: #0: ffff888027d98460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3a/0x70 #1: ffff888071088e08 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x192/0x350 #2: ffff888071088ad0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x23b/0x1280 3 locks held by udevd/13963: #0: ffff8880b9d3b1d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 #1: ffff8880b9d3b1d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 #2: ffff88807d9cdab0 (&mm->cid_lock#2){....}-{2:2}, at: __schedule+0x1340/0x4960 2 locks held by syz-executor.0/18788: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call Trace: dump_stack_lvl+0x167/0x220 nmi_cpu_backtrace+0x381/0x3f0 nmi_trigger_cpumask_backtrace+0x138/0x310 watchdog+0xb5f/0xba0 kthread+0x232/0x2b0 ret_from_fork+0x1f/0x30 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.2.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 RIP: 0010:lock_is_held_type+0x57/0x190 Code: 84 00 01 00 00 65 8b 05 ff 5b 5f 76 85 c0 0f 85 f1 00 00 00 65 4c 8b 2d 37 7b 60 76 41 83 bd 34 0a 00 00 00 0f 85 db 00 00 00 <41> 89 f6 49 89 ff 48 c7 04 24 00 00 00 00 9c 8f 04 24 4c 8b 24 24 RSP: 0018:ffffc90000147958 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 1ffff92000028f34 RCX: 0000000080000102 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8bf1a0c0 RBP: 00000000ffffffff R08: dffffc0000000000 R09: fffffbfff1a79646 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88806cebb400 R13: ffff8880113e3a00 R14: dffffc0000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4f6183e000 CR3: 000000000bd27000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_read_lock_sched_held+0x8d/0x130 __update_load_avg_cfs_rq+0x712/0xc70 update_blocked_averages+0xb57/0x16a0 run_rebalance_domains+0xf9/0x1b0 __do_softirq+0x311/0xb1a run_ksoftirqd+0xc5/0x120 smpboot_thread_fn+0x534/0x8e0 kthread+0x232/0x2b0 ret_from_fork+0x1f/0x30