EXT4-fs warning (device loop0): ext4_xattr_inode_create:1485: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1486 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor/5261 WARNING: fs/ext4/xattr.c:1486 at ext4_xattr_inode_lookup_create+0x6fc/0x1284 fs/ext4/xattr.c:1604, CPU#1: syz-executor/5261 Modules linked in: CPU: 1 UID: 0 PID: 5261 Comm: syz-executor Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x6fc/0x1284 fs/ext4/xattr.c:1604 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1484 [inline] lr : ext4_xattr_inode_lookup_create+0x6f8/0x1284 fs/ext4/xattr.c:1604 sp : ffff8000979f6dc0 x29: ffff8000979f6f00 x28: dfff800000000000 x27: ffff0000e0dad4d0 x26: ffff0000e0dad4d0 x25: ffff0000e0f8f838 x24: ffff0000e0dad4d0 x23: ffff0000dbc8e000 x22: ffff0000e0f8f810 x21: 0000000000000f8d x20: ffff700012f3edc8 x19: ffff0000dbc8e078 x18: ffff8001237d4000 x17: 6572203a35383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 00000000000007f9 x13: 0000000000000001 x12: 0000000000000003 x11: 0000000000000000 x10: 0000000000000001 x9 : f6892378f255a900 x8 : 00000000000000f8 x7 : ffff800080484084 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80008048eb84 x2 : 0000000100000000 x1 : ffff0000cb59bb00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x6fc/0x1284 fs/ext4/xattr.c:1604 (P) ext4_xattr_block_set+0x1d4/0x2218 fs/ext4/xattr.c:1924 ext4_xattr_move_to_block fs/ext4/xattr.c:2673 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2748 [inline] ext4_expand_extra_isize_ea+0xb00/0x127c fs/ext4/xattr.c:2836 __ext4_expand_extra_isize+0x2a4/0x378 fs/ext4/inode.c:6573 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6626 [inline] __ext4_mark_inode_dirty+0x3e8/0x78c fs/ext4/inode.c:6704 ext4_dirty_inode+0xd8/0x114 fs/ext4/inode.c:6736 __mark_inode_dirty+0x378/0x1634 fs/fs-writeback.c:2744 mark_inode_dirty_sync include/linux/fs.h:2213 [inline] sync_lazytime+0x1a8/0x57c fs/fs-writeback.c:1776 iput+0x1ec/0xc28 fs/inode.c:2045 dentry_unlink_inode+0x324/0x3d0 fs/dcache.c:479 dentry_kill+0x1dc/0x7b0 fs/dcache.c:826 shrink_kill fs/dcache.c:1275 [inline] shrink_dentry_list+0x22c/0x310 fs/dcache.c:1292 shrink_dcache_tree+0x13c/0x360 fs/dcache.c:1727 do_one_tree+0x30/0x12c fs/dcache.c:1797 shrink_dcache_for_umount+0x108/0x468 fs/dcache.c:1819 generic_shutdown_super+0x74/0x2c0 fs/super.c:729 kill_block_super+0x48/0xa4 fs/super.c:1903 ext4_kill_sb+0x68/0xa8 fs/ext4/super.c:7528 deactivate_locked_super+0xcc/0x128 fs/super.c:586 deactivate_super+0xd4/0xf4 fs/super.c:614 cleanup_mnt+0x190/0x220 fs/namespace.c:1392 __cleanup_mnt+0x20/0x30 fs/namespace.c:1399 task_work_run+0x1cc/0x25c kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x58c/0x1a74 kernel/exit.c:986 do_group_exit+0x198/0x238 kernel/exit.c:1129 __do_sys_exit_group kernel/exit.c:1140 [inline] __se_sys_exit_group kernel/exit.c:1138 [inline] pid_child_should_wake+0x0/0x104 kernel/exit.c:1138 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x1d8 arch/arm64/kernel/entry-common.c:796 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:815 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:606 irq event stamp: 168000 hardirqs last enabled at (167999): [] vprintk_store+0x924/0xb94 kernel/printk/printk.c:2385 hardirqs last disabled at (168000): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:483 softirqs last enabled at (167994): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (167994): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (167994): [] kernel_neon_begin+0x294/0x400 arch/arm64/kernel/fpsimd.c:1924 softirqs last disabled at (167992): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (167992): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (167992): [] kernel_neon_begin+0x11c/0x400 arch/arm64/kernel/fpsimd.c:1883 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2863: Unable to expand inode 12. Delete some EAs or run e2fsck. EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.