INFO: task syz-executor.2:8134 blocked for more than 143 seconds. Not tainted 5.15.112-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack: 0 pid: 8134 ppid: 4022 flags:0x00000001 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5026 [inline] __schedule+0xf10/0x1e38 kernel/sched/core.c:6372 schedule+0x11c/0x1c8 kernel/sched/core.c:6455 xlog_grant_head_wait+0x390/0xa88 fs/xfs/xfs_log.c:256 xlog_grant_head_check+0x218/0x3d8 xfs_log_reserve+0x384/0xc1c fs/xfs/xfs_log.c:464 xfs_trans_reserve+0x1e8/0x5a4 fs/xfs/xfs_trans.c:197 xfs_trans_alloc+0x4c4/0xaa4 fs/xfs/xfs_trans.c:288 xfs_trans_alloc_icreate+0xc8/0x290 fs/xfs/xfs_trans.c:1102 xfs_create+0x578/0xfec fs/xfs/xfs_inode.c:1018 xfs_generic_create+0x390/0xb70 fs/xfs/xfs_iops.c:197 xfs_vn_create+0x44/0x58 fs/xfs/xfs_iops.c:275 lookup_open fs/namei.c:3392 [inline] open_last_lookups fs/namei.c:3462 [inline] path_openat+0xec0/0x26f0 fs/namei.c:3669 do_filp_open+0x1a8/0x3b4 fs/namei.c:3699 do_sys_openat2+0x128/0x3d8 fs/open.c:1211 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1238 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz-executor.2:8180 blocked for more than 143 seconds. Not tainted 5.15.112-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack: 0 pid: 8180 ppid: 4022 flags:0x00000001 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5026 [inline] __schedule+0xf10/0x1e38 kernel/sched/core.c:6372 schedule+0x11c/0x1c8 kernel/sched/core.c:6455 xlog_grant_head_wait+0x390/0xa88 fs/xfs/xfs_log.c:256 xlog_grant_head_check+0x218/0x3d8 xfs_log_reserve+0x384/0xc1c fs/xfs/xfs_log.c:464 xfs_trans_reserve+0x1e8/0x5a4 fs/xfs/xfs_trans.c:197 xfs_trans_alloc+0x4c4/0xaa4 fs/xfs/xfs_trans.c:288 xfs_trans_alloc_icreate+0xc8/0x290 fs/xfs/xfs_trans.c:1102 xfs_create+0x578/0xfec fs/xfs/xfs_inode.c:1018 xfs_generic_create+0x390/0xb70 fs/xfs/xfs_iops.c:197 xfs_vn_create+0x44/0x58 fs/xfs/xfs_iops.c:275 lookup_open fs/namei.c:3392 [inline] open_last_lookups fs/namei.c:3462 [inline] path_openat+0xec0/0x26f0 fs/namei.c:3669 do_filp_open+0x1a8/0x3b4 fs/namei.c:3699 do_sys_openat2+0x128/0x3d8 fs/open.c:1211 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1238 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffff800014aa19e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:268 2 locks held by getty/3721: #0: ffff0000d2327098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001a28b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1200 drivers/tty/n_tty.c:2147 2 locks held by kworker/u4:9/4809: 3 locks held by syz-executor.2/8134: #0: ffff0000d743c460 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0001274db000 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0001274db000 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: open_last_lookups fs/namei.c:3459 [inline] #1: ffff0001274db000 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: path_openat+0x63c/0x26f0 fs/namei.c:3669 #2: ffff0000d743c650 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_icreate+0xc8/0x290 fs/xfs/xfs_trans.c:1102 3 locks held by syz-executor.2/8180: #0: ffff0000d743c460 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0001274dc680 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0001274dc680 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: open_last_lookups fs/namei.c:3459 [inline] #1: ffff0001274dc680 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: path_openat+0x63c/0x26f0 fs/namei.c:3669 #2: ffff0000d743c650 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_icreate+0xc8/0x290 fs/xfs/xfs_trans.c:1102 3 locks held by syz-executor.3/8228: #0: ffff000166084460 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0001274da880 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0001274da880 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: open_last_lookups fs/namei.c:3459 [inline] #1: ffff0001274da880 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: path_openat+0x63c/0x26f0 fs/namei.c:3669 #2: ffff000166084650 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_icreate+0xc8/0x290 fs/xfs/xfs_trans.c:1102 3 locks held by syz-executor.3/8251: #0: ffff000166084460 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0001274d9200 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0001274d9200 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: open_last_lookups fs/namei.c:3459 [inline] #1: ffff0001274d9200 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: path_openat+0x63c/0x26f0 fs/namei.c:3669 #2: ffff000166084650 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_icreate+0xc8/0x290 fs/xfs/xfs_trans.c:1102 3 locks held by syz-executor.5/8234: #0: ffff000134856460 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0001274d8a80 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0001274d8a80 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: open_last_lookups fs/namei.c:3459 [inline] #1: ffff0001274d8a80 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: path_openat+0x63c/0x26f0 fs/namei.c:3669 #2: ffff000134856650 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_icreate+0xc8/0x290 fs/xfs/xfs_trans.c:1102 3 locks held by syz-executor.5/8253: #0: ffff000134856460 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0001274dd580 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3} , at: inode_lock include/linux/fs.h:787 [inline] , at: open_last_lookups fs/namei.c:3459 [inline] , at: path_openat+0x63c/0x26f0 fs/namei.c:3669 #2: ffff000134856650 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_icreate+0xc8/0x290 fs/xfs/xfs_trans.c:1102 3 locks held by kworker/u4:10/8515: #0: ffff0000c03e4138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2280 #1: ffff800028797c00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2282 #2: ffff8000169a9c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf4/0x9bc net/core/net_namespace.c:558 5 locks held by syz-executor.0/9435: 1 lock held by syz-executor.5/9443: #0: ffff8000169b5588 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000169b5588 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0xa2c/0xdac net/core/rtnetlink.c:5584 2 locks held by syz-executor.2/9442: #0: ffff8000169b5588 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000169b5588 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0xa2c/0xdac net/core/rtnetlink.c:5584 #1: ffff800014aa5f68 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline] #1: ffff800014aa5f68 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x320/0x660 kernel/rcu/tree_exp.h:840 =============================================