EXT4-fs (loop3): mounted filesystem without journal. Quota mode: none. ====================================================== WARNING: possible circular locking dependency detected 6.1.105-syzkaller #0 Not tainted ------------------------------------------------------ syz.3.153/5437 is trying to acquire lock: ffff0000e20cca38 (&ea_inode->i_rwsem#9/1){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] ffff0000e20cca38 (&ea_inode->i_rwsem#9/1){+.+.}-{3:3}, at: ext4_xattr_inode_iget+0x34c/0x4e4 fs/ext4/xattr.c:425 but task is already holding lock: ffff0000e20cdcd0 (&ei->i_data_sem/3){++++}-{3:3}, at: ext4_truncate+0x7e0/0x1178 fs/ext4/inode.c:4283 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&ei->i_data_sem/3){++++}-{3:3}: down_write+0x5c/0x88 kernel/locking/rwsem.c:1573 ext4_update_i_disksize fs/ext4/ext4.h:3377 [inline] ext4_xattr_inode_write fs/ext4/xattr.c:1403 [inline] ext4_xattr_inode_lookup_create fs/ext4/xattr.c:1551 [inline] ext4_xattr_set_entry+0x2718/0x30b8 fs/ext4/xattr.c:1675 ext4_xattr_ibody_set+0x104/0x328 fs/ext4/xattr.c:2243 ext4_xattr_set_handle+0x9ec/0x1294 fs/ext4/xattr.c:2400 ext4_xattr_set+0x1dc/0x350 fs/ext4/xattr.c:2514 ext4_xattr_trusted_set+0x4c/0x64 fs/ext4/xattr_trusted.c:38 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x1a8/0x344 fs/xattr.c:309 do_setxattr fs/xattr.c:594 [inline] setxattr+0x230/0x294 fs/xattr.c:617 path_setxattr+0x17c/0x258 fs/xattr.c:636 __do_sys_setxattr fs/xattr.c:652 [inline] __se_sys_setxattr fs/xattr.c:648 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:648 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 -> #0 (&ea_inode->i_rwsem#9/1){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain kernel/locking/lockdep.c:3825 [inline] __lock_acquire+0x3338/0x7680 kernel/locking/lockdep.c:5049 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662 down_write+0x5c/0x88 kernel/locking/rwsem.c:1573 inode_lock include/linux/fs.h:758 [inline] ext4_xattr_inode_iget+0x34c/0x4e4 fs/ext4/xattr.c:425 ext4_xattr_inode_get+0x148/0x674 fs/ext4/xattr.c:485 ext4_xattr_move_to_block fs/ext4/xattr.c:2596 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2698 [inline] ext4_expand_extra_isize_ea+0xb9c/0x169c fs/ext4/xattr.c:2790 __ext4_expand_extra_isize+0x290/0x348 fs/ext4/inode.c:5930 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5973 [inline] __ext4_mark_inode_dirty+0x484/0x8fc fs/ext4/inode.c:6051 ext4_ext_truncate+0x94/0x210 fs/ext4/extents.c:4431 ext4_truncate+0xa08/0x1178 fs/ext4/inode.c:4288 ext4_evict_inode+0xc3c/0x12cc fs/ext4/inode.c:286 evict+0x260/0x68c fs/inode.c:666 iput_final fs/inode.c:1791 [inline] iput+0x7c0/0x8a4 fs/inode.c:1817 dentry_unlink_inode+0x37c/0x4bc fs/dcache.c:405 __dentry_kill+0x324/0x5e4 fs/dcache.c:611 dentry_kill+0xc8/0x250 dput+0x218/0x454 fs/dcache.c:918 do_renameat2+0x9f8/0xe64 fs/namei.c:5031 __do_sys_renameat2 fs/namei.c:5062 [inline] __se_sys_renameat2 fs/namei.c:5059 [inline] __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5059 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ei->i_data_sem/3); lock(&ea_inode->i_rwsem#9/1); lock(&ei->i_data_sem/3); lock(&ea_inode->i_rwsem#9/1); *** DEADLOCK *** 7 locks held by syz.3.153/5437: #0: ffff0000e9a94460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:393 #1: ffff0000e9a94748 (&type->s_vfs_rename_key#2){+.+.}-{3:3}, at: lock_rename fs/namei.c:3040 [inline] #1: ffff0000e9a94748 (&type->s_vfs_rename_key#2){+.+.}-{3:3}, at: do_renameat2+0x498/0xe64 fs/namei.c:4968 #2: ffff0000e20cc030 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: lock_rename fs/namei.c:3041 [inline] #2: ffff0000e20cc030 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_renameat2+0x50c/0xe64 fs/namei.c:4968 #3: ffff0000e20ce850 (&type->i_mutex_dir_key#3/5){+.+.}-{3:3}, at: do_renameat2+0x538/0xe64 fs/namei.c:4968 #4: ffff0000e9a94650 (sb_internal){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1891 [inline] #4: ffff0000e9a94650 (sb_internal){.+.+}-{0:0}, at: sb_start_intwrite include/linux/fs.h:2013 [inline] #4: ffff0000e9a94650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x408/0x12cc fs/ext4/inode.c:240 #5: ffff0000e20cdcd0 (&ei->i_data_sem/3){++++}-{3:3}, at: ext4_truncate+0x7e0/0x1178 fs/ext4/inode.c:4283 #6: ffff0000e20cdb10 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_trylock_xattr fs/ext4/xattr.h:162 [inline] #6: ffff0000e20cdb10 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_to_expand_extra_isize fs/ext4/inode.c:5970 [inline] #6: ffff0000e20cdb10 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x404/0x8fc fs/ext4/inode.c:6051 stack backtrace: CPU: 1 PID: 5437 Comm: syz.3.153 Not tainted 6.1.105-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2048 check_noncircular+0x2cc/0x378 kernel/locking/lockdep.c:2170 check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain kernel/locking/lockdep.c:3825 [inline] __lock_acquire+0x3338/0x7680 kernel/locking/lockdep.c:5049 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662 down_write+0x5c/0x88 kernel/locking/rwsem.c:1573 inode_lock include/linux/fs.h:758 [inline] ext4_xattr_inode_iget+0x34c/0x4e4 fs/ext4/xattr.c:425 ext4_xattr_inode_get+0x148/0x674 fs/ext4/xattr.c:485 ext4_xattr_move_to_block fs/ext4/xattr.c:2596 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2698 [inline] ext4_expand_extra_isize_ea+0xb9c/0x169c fs/ext4/xattr.c:2790 __ext4_expand_extra_isize+0x290/0x348 fs/ext4/inode.c:5930 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5973 [inline] __ext4_mark_inode_dirty+0x484/0x8fc fs/ext4/inode.c:6051 ext4_ext_truncate+0x94/0x210 fs/ext4/extents.c:4431 ext4_truncate+0xa08/0x1178 fs/ext4/inode.c:4288 ext4_evict_inode+0xc3c/0x12cc fs/ext4/inode.c:286 evict+0x260/0x68c fs/inode.c:666 iput_final fs/inode.c:1791 [inline] iput+0x7c0/0x8a4 fs/inode.c:1817 dentry_unlink_inode+0x37c/0x4bc fs/dcache.c:405 __dentry_kill+0x324/0x5e4 fs/dcache.c:611 dentry_kill+0xc8/0x250 dput+0x218/0x454 fs/dcache.c:918 do_renameat2+0x9f8/0xe64 fs/namei.c:5031 __do_sys_renameat2 fs/namei.c:5062 [inline] __se_sys_renameat2 fs/namei.c:5059 [inline] __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5059 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585