INFO: task syz.0.44:6890 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.44 state:D stack:0 pid:6890 tgid:6889 ppid:6695 task_flags:0x400140 flags:0x00000011 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:742 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 __wait_on_freeing_inode+0x1ac/0x2b4 fs/inode.c:2524 find_inode_fast+0x2b0/0x608 fs/inode.c:1099 iget_locked+0xe0/0x5d4 fs/inode.c:1457 __ext4_iget+0x1d0/0x34d0 fs/ext4/inode.c:5194 ext4_xattr_inode_cache_find fs/ext4/xattr.c:1549 [inline] ext4_xattr_inode_lookup_create+0x350/0x17ac fs/ext4/xattr.c:1588 ext4_xattr_ibody_set+0x1b4/0x5fc fs/ext4/xattr.c:2267 ext4_xattr_set_handle+0xb1c/0x1260 fs/ext4/xattr.c:2444 ext4_xattr_set+0x1e4/0x2b8 fs/ext4/xattr.c:2558 ext4_xattr_trusted_set+0x4c/0x64 fs/ext4/xattr_trusted.c:38 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:200 __vfs_setxattr_noperm+0x120/0x5c4 fs/xattr.c:234 __vfs_setxattr_locked+0x1e8/0x214 fs/xattr.c:295 vfs_setxattr+0x158/0x2a8 fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] filename_setxattr+0x20c/0x4f8 fs/xattr.c:665 path_setxattrat+0x2e8/0x320 fs/xattr.c:713 __do_sys_setxattr fs/xattr.c:747 [inline] __se_sys_setxattr fs/xattr.c:743 [inline] __arm64_sys_setxattr+0xc0/0xdc fs/xattr.c:743 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 INFO: task syz.0.44:6893 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.44 state:D stack:0 pid:6893 tgid:6889 ppid:6695 task_flags:0x400140 flags:0x00000001 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:742 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 mb_cache_entry_wait_unused+0x13c/0x224 fs/mbcache.c:148 ext4_evict_ea_inode+0x130/0x2f0 fs/ext4/xattr.c:481 ext4_evict_inode+0x15c/0x1058 fs/ext4/inode.c:183 evict+0x4e0/0xa74 fs/inode.c:837 iput_final fs/inode.c:1951 [inline] iput+0xc54/0xfdc fs/inode.c:2003 ext4_xattr_set_entry+0xf68/0x15c0 fs/ext4/xattr.c:1848 ext4_xattr_block_set+0x1758/0x24bc fs/ext4/xattr.c:1960 ext4_xattr_set_handle+0xde8/0x1260 fs/ext4/xattr.c:2456 ext4_xattr_set+0x1e4/0x2b8 fs/ext4/xattr.c:2558 ext4_xattr_trusted_set+0x4c/0x64 fs/ext4/xattr_trusted.c:38 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:200 __vfs_setxattr_noperm+0x120/0x5c4 fs/xattr.c:234 __vfs_setxattr_locked+0x1e8/0x214 fs/xattr.c:295 vfs_setxattr+0x158/0x2a8 fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] filename_setxattr+0x20c/0x4f8 fs/xattr.c:665 path_setxattrat+0x2e8/0x320 fs/xattr.c:713 __do_sys_setxattr fs/xattr.c:747 [inline] __se_sys_setxattr fs/xattr.c:743 [inline] __arm64_sys_setxattr+0xc0/0xdc fs/xattr.c:743 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 Showing all locks held in the system: 1 lock held by khungtaskd/32: #0: ffff80008fa5b6e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 2 locks held by pr/ttyAMA-1/43: 1 lock held by klogd/6199: 2 locks held by getty/6355: #0: ffff0000d63f30a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800099f1e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfc8 drivers/tty/n_tty.c:2211 3 locks held by syz.0.44/6890: #0: ffff0000dacd8420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000e612edc0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000e612edc0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000e612eaa8 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000e612eaa8 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.0.44/6893: #0: ffff0000dacd8420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000e612c740 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000e612c740 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000e612c428 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000e612c428 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.1.124/7285: #0: ffff0000cacb2420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000e63e2a60 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000e63e2a60 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000e63e2748 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000e63e2748 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.1.124/7288: #0: ffff0000cacb2420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000e63e1720 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000e63e1720 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000e63e1408 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000e63e1408 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.2.225/7782: #0: ffff0000c8140420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000e62620c0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000e62620c0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000e6261da8 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000e6261da8 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.2.225/7785: #0: ffff0000c8140420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000f6dd2a60 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000f6dd2a60 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000f6dd2748 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000f6dd2748 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.3.435/8774: #0: ffff0000d68ea420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000f6d44740 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000f6d44740 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000f6d44428 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000f6d44428 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.3.435/8777: #0: ffff0000d68ea420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000e62603e0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000e62603e0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000e62600c8 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000e62600c8 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.4.458/8913: #0: ffff0000dcb02420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000e20d0d80 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000e20d0d80 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000e20d0a68 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000e20d0a68 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.4.458/8917: #0: ffff0000dcb02420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000e215f760 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000e215f760 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000e215f448 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000e215f448 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.5.498/9128: #0: ffff0000ddf94420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000f6f7e420 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000f6f7e420 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000f6f7e108 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000f6f7e108 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.5.498/9131: #0: ffff0000ddf94420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000f6f7bda0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000f6f7bda0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000f6f7ba88 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000f6f7ba88 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.6.512/9217: #0: ffff0000d999c420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000e63ee420 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000e63ee420 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000e63ee108 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000e63ee108 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.6.512/9220: #0: ffff0000d999c420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000f6f7a0c0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000f6f7a0c0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000f6f79da8 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000f6f79da8 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.7.522/9306: #0: ffff0000cf8ce420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000e63e6dc0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000e63e6dc0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000e63e6aa8 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000e63e6aa8 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.7.522/9309: #0: ffff0000cf8ce420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000e60af760 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000e60af760 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000e60af448 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000e60af448 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.8.588/9624: #0: ffff0000c8e0e420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000ed9abda0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000ed9abda0 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000ed9aba88 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000ed9aba88 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 3 locks held by syz.8.588/9627: #0: ffff0000c8e0e420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000ed986420 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000ed986420 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000ed986108 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_lock_xattr fs/ext4/xattr.h:157 [inline] #2: ffff0000ed986108 (&ei->xattr_sem){++++}-{4:4}, at: ext4_xattr_set_handle+0x11c/0x1260 fs/ext4/xattr.c:2371 =============================================