INFO: task syz-executor.2:20632 blocked for more than 143 seconds. Not tainted 6.8.0-rc6-syzkaller-01752-ge96082570933 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:25776 pid:20632 tgid:20628 ppid:5109 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0x17d1/0x49f0 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0x149/0x260 kernel/sched/core.c:6817 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2159 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x354/0x620 kernel/sched/completion.c:148 __flush_work+0x950/0xad0 kernel/workqueue.c:3410 __cancel_work_timer+0x51d/0x6b0 kernel/workqueue.c:3497 tls_sk_proto_close+0x125/0x940 net/tls/tls_main.c:376 inet_release+0x17c/0x200 net/ipv4/af_inet.c:436 __sock_release net/socket.c:659 [inline] sock_close+0xbc/0x240 net/socket.c:1421 __fput+0x429/0x8a0 fs/file_table.c:376 task_work_run+0x24e/0x310 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa2c/0x2740 kernel/exit.c:871 do_group_exit+0x206/0x2c0 kernel/exit.c:1020 get_signal+0x176d/0x1850 kernel/signal.c:2893 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:105 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline] syscall_exit_to_user_mode+0xc8/0x360 kernel/entry/common.c:212 do_syscall_64+0x108/0x240 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7efd7fc7dda9 RSP: 002b:00007efd809ab0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: 0000000000000000 RBX: 00007efd7fdac050 RCX: 00007efd7fc7dda9 RDX: 0000000000000013 RSI: 0000000000000006 RDI: 0000000000000003 RBP: 00007efd7fcca47a R08: 0000000000000004 R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007efd7fdac050 R15: 00007ffef5aaf088 Showing all locks held in the system: 1 lock held by ksoftirqd/1/22: #0: ffff8880b953c958 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559 1 lock held by khungtaskd/29: #0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline] #0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline] #0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 2 locks held by getty/4828: #0: ffff88802a6d30a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201 3 locks held by kworker/1:15/10635: #0: ffff888014c78938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline] #0: ffff888014c78938 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706 #1: ffffc90012747d20 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline] #1: ffffc90012747d20 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706 #2: ffff888095d044f0 (&ctx->tx_lock){+.+.}-{3:3}, at: tx_work_handler+0x10e/0x210 net/tls/tls_sw.c:2559 5 locks held by kworker/u4:18/12404: 3 locks held by kworker/u4:5/15992: 1 lock held by syz-executor.2/20632: #0: ffff88803e477a10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:804 [inline] #0: ffff88803e477a10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release net/socket.c:658 [inline] #0: ffff88803e477a10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: sock_close+0x90/0x240 net/socket.c:1421 2 locks held by kworker/1:2/20982: #0: ffff888014c7a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline] #0: ffff888014c7a538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706 #1: ffffc90003c5fd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline] #1: ffffc90003c5fd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706 2 locks held by syz-executor.4/26231: 2 locks held by syz-executor.2/26243: 4 locks held by syz-executor.3/26249: 2 locks held by syz-executor.0/26254: #0: ffffffff8e179528 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_register_prio_may_exist+0xbb/0x190 kernel/tracepoint.c:478 #1: ffffffff8e136578 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline] #1: ffffffff8e136578 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:995 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc6-syzkaller-01752-ge96082570933 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 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+0xfaf/0xff0 kernel/hung_task.c:379 kthread+0x2ef/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 20885 Comm: syz-executor.2 Not tainted 6.8.0-rc6-syzkaller-01752-ge96082570933 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:crc32c_pcl_intel_update+0x98/0x280 arch/x86/crypto/crc32c-intel_glue.c:165 Code: 01 00 00 8b 13 4c 89 e7 89 ee e8 73 05 00 00 89 c5 43 0f b6 04 2e 84 c0 0f 85 ad 01 00 00 89 2b e8 5d 0a e4 ff e9 3b 01 00 00 <48> 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 53 01 00 00 48 89 RSP: 0018:ffffc9000311ed70 EFLAGS: 00000283 RAX: 0000000000000000 RBX: ffffc9000311eea8 RCX: ffff888039f3bb80 RDX: ffff888039f3bb80 RSI: 0000000000000002 RDI: 00000000000001ff RBP: 0000000000000002 R08: ffffffff8151b189 R09: 1ffff1100625ed15 R10: dffffc0000000000 R11: ffffffff8151b150 R12: ffff888045e6157e R13: dffffc0000000000 R14: ffff88801d888600 R15: ffff888045e6157e FS: 00005555574f4480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff805eaff8 CR3: 00000000577ec000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_chksum fs/ext4/ext4.h:2476 [inline] ext4_inode_csum+0x43d/0xc90 fs/ext4/inode.c:64 ext4_inode_csum_set fs/ext4/inode.c:115 [inline] ext4_fill_raw_inode+0x17cf/0x2560 fs/ext4/inode.c:4322 ext4_do_update_inode fs/ext4/inode.c:5079 [inline] ext4_mark_iloc_dirty+0x4e8/0x1d40 fs/ext4/inode.c:5709 __ext4_mark_inode_dirty+0x5ac/0x870 fs/ext4/inode.c:5913 ext4_dirty_inode+0xce/0x110 fs/ext4/inode.c:5942 __mark_inode_dirty+0x309/0xdb0 fs/fs-writeback.c:2452 mark_inode_dirty include/linux/fs.h:2382 [inline] dquot_alloc_space include/linux/quotaops.h:319 [inline] dquot_alloc_block include/linux/quotaops.h:336 [inline] ext4_mb_new_blocks+0x2d1e/0x4b50 fs/ext4/mballoc.c:6169 ext4_ext_map_blocks+0x1fd5/0x76d0 fs/ext4/extents.c:4317 ext4_map_blocks+0xa5e/0x1d20 fs/ext4/inode.c:623 ext4_getblk+0x1fa/0x850 fs/ext4/inode.c:833 ext4_bread+0x2e/0x180 fs/ext4/inode.c:889 ext4_append+0x327/0x5c0 fs/ext4/namei.c:83 ext4_init_new_dir+0x33e/0xa30 fs/ext4/namei.c:2978 ext4_mkdir+0x4f6/0xcf0 fs/ext4/namei.c:3024 vfs_mkdir+0x2f9/0x4b0 fs/namei.c:4126 do_mkdirat+0x264/0x3a0 fs/namei.c:4149 __do_sys_mkdirat fs/namei.c:4164 [inline] __se_sys_mkdirat fs/namei.c:4162 [inline] __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4162 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7fc16967c8a7 Code: 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff805ec378 EFLAGS: 00000206 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007fff805ec400 RCX: 00007fc16967c8a7 RDX: 00000000000001ff RSI: 00007fff805ec400 RDI: 00000000ffffff9c RBP: 00007fff805ec3dc R08: 0000000000000005 R09: 00007fff805ec115 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000032 R13: 00000000001bee29 R14: 00000000001beb04 R15: 0000000000000009