INFO: task syz-executor.1:5356 blocked for more than 143 seconds. Not tainted 6.0.0-syzkaller-06205-gffb39098bf87 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:26216 pid: 5356 ppid: 3645 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5183 [inline] __schedule+0xadf/0x52b0 kernel/sched/core.c:6495 schedule+0xda/0x1b0 kernel/sched/core.c:6571 io_schedule+0xba/0x130 kernel/sched/core.c:8715 folio_wait_bit_common+0x3dd/0xa90 mm/filemap.c:1298 __folio_lock mm/filemap.c:1664 [inline] folio_lock include/linux/pagemap.h:939 [inline] folio_lock include/linux/pagemap.h:935 [inline] __filemap_get_folio+0xc6d/0xed0 mm/filemap.c:1936 truncate_inode_pages_range+0x37c/0x1510 mm/truncate.c:378 ntfs_evict_inode+0x16/0xa0 fs/ntfs3/inode.c:1741 evict+0x2ed/0x6b0 fs/inode.c:665 iput_final fs/inode.c:1748 [inline] iput.part.0+0x55d/0x810 fs/inode.c:1774 iput+0x58/0x70 fs/inode.c:1764 ntfs_fill_super+0x2e89/0x37f0 fs/ntfs3/super.c:1190 get_tree_bdev+0x440/0x760 fs/super.c:1323 vfs_get_tree+0x89/0x2f0 fs/super.c:1530 do_new_mount fs/namespace.c:3040 [inline] path_mount+0x1326/0x1e20 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f2a7ec8bada RSP: 002b:00007f2a7fd98f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f2a7ec8bada RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f2a7fd98fe0 RBP: 00007f2a7fd99020 R08: 00007f2a7fd99020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f2a7fd98fe0 R15: 000000002007aa80 Showing all locks held in the system: 3 locks held by kworker/0:0/7: #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260 #1: ffffc900000c7da8 (fqdir_free_work){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264 #2: ffffffff8bf91300 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x44/0x710 kernel/rcu/tree.c:3951 1 lock held by rcu_tasks_kthre/13: #0: ffffffff8bf85bf0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/14: #0: ffffffff8bf858f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/29: #0: ffffffff8bf86740 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6492 3 locks held by kworker/u4:5/1200: #0: ffff8880119c6138 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8880119c6138 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8880119c6138 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff8880119c6138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff8880119c6138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff8880119c6138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260 #1: ffffc9000562fda8 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264 #2: ffffffff8bf91300 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x44/0x710 kernel/rcu/tree.c:3951 2 locks held by getty/3286: #0: ffff888025c3b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177 1 lock held by syz-executor.1/5356: #0: ffff888039f340e0 (&type->s_umount_key#67/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228 1 lock held by syz-executor.4/7543: 2 locks held by syz-executor.4/7549: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.0.0-syzkaller-06205-gffb39098bf87 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x46/0x14f lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x206/0x250 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline] watchdog+0xc18/0xf50 kernel/hung_task.c:369 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7543 Comm: syz-executor.4 Not tainted 6.0.0-syzkaller-06205-gffb39098bf87 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x60 kernel/kcov.c:200 Code: 00 00 e9 b6 09 83 02 66 0f 1f 44 00 00 48 8b be a8 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 65 8b 05 89 59 87 7e 89 c1 48 8b 34 24 <81> e1 00 01 00 00 65 48 8b 14 25 80 6f 02 00 a9 00 01 ff 00 74 0e RSP: 0018:ffffc90004817cc0 EFLAGS: 00000246 RAX: 0000000080000000 RBX: 0000000000000000 RCX: 0000000080000000 RDX: ffff88801841d880 RSI: ffffffff874f3aaa RDI: 0000000000000005 RBP: 0000000000000002 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000008c2d R13: 0000000000000000 R14: 0000000020230c00 R15: 0000000000010106 FS: 00007f65fa412700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020230030 CR3: 0000000020469000 CR4: 0000000000350ef0 Call Trace: do_recvmmsg+0x27a/0x6e0 net/socket.c:2843 __sys_recvmmsg net/socket.c:2916 [inline] __do_sys_recvmmsg net/socket.c:2939 [inline] __se_sys_recvmmsg net/socket.c:2932 [inline] __x64_sys_recvmmsg+0x20b/0x260 net/socket.c:2932 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f65f928a5a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f65fa412168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f65f93abf80 RCX: 00007f65f928a5a9 RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00007f65f92e5580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc5074fd6f R14: 00007f65fa412300 R15: 0000000000022000