loop4: detected capacity change from 0 to 512 ------------[ cut here ]------------ EA inode 11 i_nlink=2 WARNING: CPU: 0 PID: 5309 at fs/ext4/xattr.c:1022 ext4_xattr_inode_update_ref+0x42c/0x470 fs/ext4/xattr.c:1020 Modules linked in: CPU: 0 PID: 5309 Comm: syz.4.343 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_update_ref+0x42c/0x470 fs/ext4/xattr.c:1020 lr : ext4_xattr_inode_update_ref+0x42c/0x470 fs/ext4/xattr.c:1020 sp : ffff800020e56e00 x29: ffff800020e56ea0 x28: 0000000000000000 x27: dfff800000000000 x26: 1fffe0001c38995c x25: ffff7000041cadc4 x24: 0000000000000000 x23: ffff800017a17000 x22: ffff0000e1c4c928 x21: 0000000000000002 x20: 0000000000000001 x19: ffff0000e1c4c8e8 x18: ffff800011a6bd40 x17: 1fffe00033ee777e x16: ffff8000082d4a88 x15: 0000000040000000 x14: 0000000000000002 x13: 1ffff00002a0a0b1 x12: 0000000000ff0100 x11: ff0080000a899374 x10: 0000000000000003 x9 : f2c1153902d5c000 x8 : f2c1153902d5c000 x7 : ffff800008254344 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff800011a6d840 x0 : ffff80018a796000 Call trace: ext4_xattr_inode_update_ref+0x42c/0x470 fs/ext4/xattr.c:1020 ext4_xattr_inode_dec_ref fs/ext4/xattr.c:1045 [inline] ext4_xattr_set_entry+0x918/0x15ac fs/ext4/xattr.c:1687 ext4_xattr_ibody_set+0x204/0x600 fs/ext4/xattr.c:2234 ext4_xattr_move_to_block fs/ext4/xattr.c:2637 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2705 [inline] ext4_expand_extra_isize_ea+0xd00/0x15cc fs/ext4/xattr.c:2797 __ext4_expand_extra_isize+0x298/0x358 fs/ext4/inode.c:5979 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6022 [inline] __ext4_mark_inode_dirty+0x3e4/0x790 fs/ext4/inode.c:6100 ext4_evict_inode+0xb58/0x1270 fs/ext4/inode.c:279 evict+0x3c8/0x810 fs/inode.c:705 iput_final fs/inode.c:1834 [inline] iput+0x764/0x7f4 fs/inode.c:1860 ext4_process_orphan+0x240/0x2b4 fs/ext4/orphan.c:358 ext4_orphan_cleanup+0x908/0x104c fs/ext4/orphan.c:472 __ext4_fill_super fs/ext4/super.c:5556 [inline] ext4_fill_super+0x610c/0x6598 fs/ext4/super.c:5687 get_tree_bdev+0x358/0x544 fs/super.c:1366 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5717 vfs_get_tree+0x90/0x274 fs/super.c:1573 do_new_mount+0x228/0x810 fs/namespace.c:3078 path_mount+0x5b4/0xe78 fs/namespace.c:3408 do_mount fs/namespace.c:3421 [inline] __do_sys_mount fs/namespace.c:3629 [inline] __se_sys_mount fs/namespace.c:3606 [inline] __arm64_sys_mount+0x49c/0x584 fs/namespace.c:3606 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 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 irq event stamp: 3936 hardirqs last enabled at (3935): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1374 [inline] hardirqs last enabled at (3935): [] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:5004 hardirqs last disabled at (3936): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (3922): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (3922): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624 softirqs last disabled at (3903): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- EXT4-fs error (device loop4): ext4_xattr_inode_iget:404: inode #18: comm syz.4.343: iget: bad extra_isize 90 (inode size 256) EXT4-fs (loop4): Remounting filesystem read-only EXT4-fs error (device loop4): ext4_xattr_inode_iget:409: comm syz.4.343: error while reading EA inode 18 err=-117 EXT4-fs (loop4): Remounting filesystem read-only EXT4-fs error (device loop4): ext4_xattr_inode_iget:404: inode #18: comm syz.4.343: iget: bad extra_isize 90 (inode size 256) EXT4-fs (loop4): Remounting filesystem read-only EXT4-fs error (device loop4): ext4_xattr_inode_iget:409: comm syz.4.343: error while reading EA inode 18 err=-117 EXT4-fs (loop4): Remounting filesystem read-only EXT4-fs (loop4): 1 orphan inode deleted EXT4-fs (loop4): mounted filesystem without journal. Quota mode: none.