INFO: task syz-executor.5:11668 blocked for more than 143 seconds. Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:0 pid:11668 ppid:6034 flags:0x00000001 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5343 [inline] __schedule+0x1368/0x23b8 kernel/sched/core.c:6669 schedule+0xc4/0x170 kernel/sched/core.c:6745 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6804 rwsem_down_write_slowpath+0xcfc/0x1aa0 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0xb4/0xc0 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:775 [inline] vfs_setxattr+0x17c/0x344 fs/xattr.c:321 do_setxattr fs/xattr.c:630 [inline] setxattr+0x208/0x29c fs/xattr.c:653 path_setxattr+0x17c/0x258 fs/xattr.c:672 __do_sys_setxattr fs/xattr.c:688 [inline] __se_sys_setxattr fs/xattr.c:684 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:684 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 INFO: task syz-executor.5:11677 blocked for more than 143 seconds. Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:0 pid:11677 ppid:6034 flags:0x00000009 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5343 [inline] __schedule+0x1368/0x23b8 kernel/sched/core.c:6669 schedule+0xc4/0x170 kernel/sched/core.c:6745 __wait_on_freeing_inode fs/inode.c:2196 [inline] find_inode_fast+0x2cc/0x3d4 fs/inode.c:950 iget_locked+0xd0/0x708 fs/inode.c:1273 __ext4_iget+0x1f4/0x31b4 fs/ext4/inode.c:4696 ext4_xattr_inode_cache_find fs/ext4/xattr.c:1542 [inline] ext4_xattr_inode_lookup_create fs/ext4/xattr.c:1577 [inline] ext4_xattr_set_entry+0x167c/0x2d7c fs/ext4/xattr.c:1719 ext4_xattr_block_set+0x8dc/0x2c64 fs/ext4/xattr.c:2025 ext4_xattr_set_handle+0xb2c/0x12d8 fs/ext4/xattr.c:2442 ext4_xattr_set+0x1e0/0x354 fs/ext4/xattr.c:2544 ext4_xattr_trusted_set+0x4c/0x64 fs/ext4/xattr_trusted.c:38 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:201 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:235 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:296 vfs_setxattr+0x1a8/0x344 fs/xattr.c:322 do_setxattr fs/xattr.c:630 [inline] setxattr+0x208/0x29c fs/xattr.c:653 path_setxattr+0x17c/0x258 fs/xattr.c:672 __do_sys_setxattr fs/xattr.c:688 [inline] __se_sys_setxattr fs/xattr.c:684 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:684 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 INFO: task syz-executor.5:11681 blocked for more than 143 seconds. Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:0 pid:11681 ppid:6034 flags:0x0000000d Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5343 [inline] __schedule+0x1368/0x23b8 kernel/sched/core.c:6669 schedule+0xc4/0x170 kernel/sched/core.c:6745 mb_cache_entry_wait_unused+0x140/0x228 fs/mbcache.c:148 ext4_evict_ea_inode+0x130/0x2f0 fs/ext4/xattr.c:480 ext4_evict_inode+0x174/0x10d8 fs/ext4/inode.c:180 evict+0x260/0x68c fs/inode.c:665 iput_final fs/inode.c:1747 [inline] iput+0x734/0x818 fs/inode.c:1773 ext4_xattr_set_entry+0x12a4/0x2d7c fs/ext4/xattr.c:1856 ext4_xattr_block_set+0x54c/0x2c64 fs/ext4/xattr.c:1956 ext4_xattr_set_handle+0xb2c/0x12d8 fs/ext4/xattr.c:2442 ext4_xattr_set+0x1e0/0x354 fs/ext4/xattr.c:2544 ext4_xattr_trusted_set+0x4c/0x64 fs/ext4/xattr_trusted.c:38 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:201 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:235 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:296 vfs_setxattr+0x1a8/0x344 fs/xattr.c:322 do_setxattr fs/xattr.c:630 [inline] setxattr+0x208/0x29c fs/xattr.c:653 path_setxattr+0x17c/0x258 fs/xattr.c:672 __do_sys_setxattr fs/xattr.c:688 [inline] __se_sys_setxattr fs/xattr.c:684 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:684 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/13: #0: ffff80008e0c16d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:518 1 lock held by rcu_tasks_trace/14: #0: ffff80008e0c1a90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:518 1 lock held by khungtaskd/28: #0: ffff80008e0c1500 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:326 1 lock held by udevd/5593: #0: ffff0000cc8c24c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x12c/0x8f8 block/bdev.c:747 2 locks held by getty/5735: #0: ffff0000cf0e4098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800092eb02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 drivers/tty/n_tty.c:2176 2 locks held by kworker/u4:7/6253: 2 locks held by syz-executor.5/11668: #0: ffff00012a842460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:394 #1: ffff00012c995400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline] #1: ffff00012c995400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_setxattr+0x17c/0x344 fs/xattr.c:321 3 locks held by syz-executor.5/11677: #0: ffff00012a842460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:394 #1: ffff00012c995400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline] #1: ffff00012c995400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_setxattr+0x17c/0x344 fs/xattr.c:321 #2: ffff00012c9950c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline] #2: ffff00012c9950c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x1e0/0x12d8 fs/ext4/xattr.c:2357 3 locks held by syz-executor.5/11681: #0: ffff00012a842460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:394 #1: ffff0001300c2c00 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline] #1: ffff0001300c2c00 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x17c/0x344 fs/xattr.c:321 #2: ffff0001300c28c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline] #2: ffff0001300c28c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x1e0/0x12d8 fs/ext4/xattr.c:2357 3 locks held by kworker/u4:25/12615: #0: ffff0000c1e4e938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x664/0x12d4 kernel/workqueue.c:2378 #1: ffff8000a7427c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x12d4 kernel/workqueue.c:2380 #2: ffff0000c18560e0 (&type->s_umount_key#39){.+.+}-{3:3}, at: trylock_super+0x28/0xf8 fs/super.c:414 1 lock held by syz-executor.4/13622: #0: ffff0000cc8c24c8 (&disk->open_mutex){+.+.}-{3:3}, at: sync_bdevs+0x150/0x28c block/bdev.c:986 1 lock held by syz-executor.5/13630: #0: ffff0000cc8c24c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x12c/0x8f8 block/bdev.c:747 =============================================