loop2: detected capacity change from 0 to 512 ------------[ cut here ]------------ EA inode 11 i_nlink=2 WARNING: fs/ext4/xattr.c:1058 at ext4_xattr_inode_update_ref+0x444/0x44c fs/ext4/xattr.c:1056, CPU#1: syz.2.9/6703 Modules linked in: CPU: 1 UID: 0 PID: 6703 Comm: syz.2.9 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_update_ref+0x444/0x44c fs/ext4/xattr.c:1056 lr : ext4_xattr_inode_update_ref+0x444/0x44c fs/ext4/xattr.c:1056 sp : ffff8000a1f26cc0 x29: ffff8000a1f26d70 x28: 0000000000000000 x27: 1fffe0001ef9542d x26: dfff800000000000 x25: ffff8000a1f26ce0 x24: ffff7000143e4d9c x23: ffff800092e86000 x22: ffff0000f7ca9fb8 x21: 0000000000000002 x20: 0000000000000001 x19: ffff0000f7ca9f78 x18: 00000000ffffffff x17: ffff800093598000 x16: ffff800082e5c71c x15: 0000000000000001 x14: 1ffff000143e4d0c x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 0000000000041ff6 x9 : 68be5791ac996300 x8 : 68be5791ac996300 x7 : ffff800080575c38 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000807f0b34 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: ext4_xattr_inode_update_ref+0x444/0x44c fs/ext4/xattr.c:1056 (P) ext4_xattr_inode_dec_ref fs/ext4/xattr.c:1081 [inline] ext4_xattr_set_entry+0x928/0x15c0 fs/ext4/xattr.c:1723 ext4_xattr_ibody_set+0x204/0x5fc fs/ext4/xattr.c:2272 ext4_xattr_move_to_block fs/ext4/xattr.c:2675 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2743 [inline] ext4_expand_extra_isize_ea+0xf00/0x1830 fs/ext4/xattr.c:2831 __ext4_expand_extra_isize+0x2a0/0x37c fs/ext4/inode.c:6349 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6392 [inline] __ext4_mark_inode_dirty+0x3a8/0x6fc fs/ext4/inode.c:6470 ext4_evict_inode+0x8dc/0x1058 fs/ext4/inode.c:253 evict+0x4e0/0xa74 fs/inode.c:837 iput_final fs/inode.c:1951 [inline] iput+0xc54/0xfdc fs/inode.c:2003 ext4_process_orphan+0x240/0x2b4 fs/ext4/orphan.c:358 ext4_orphan_cleanup+0x930/0x107c fs/ext4/orphan.c:472 __ext4_fill_super fs/ext4/super.c:5658 [inline] ext4_fill_super+0x47e8/0x4f5c fs/ext4/super.c:5777 get_tree_bdev_flags+0x360/0x414 fs/super.c:1691 get_tree_bdev+0x2c/0x3c fs/super.c:1714 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5809 vfs_get_tree+0x90/0x28c fs/super.c:1751 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3636 [inline] do_new_mount+0x284/0x944 fs/namespace.c:3712 path_mount+0x5b4/0xdfc fs/namespace.c:4022 do_mount fs/namespace.c:4035 [inline] __do_sys_mount fs/namespace.c:4224 [inline] __se_sys_mount fs/namespace.c:4201 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4201 __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 irq event stamp: 2878 hardirqs last enabled at (2877): [] irqentry_exit+0x1b4/0x2f4 kernel/entry/common.c:219 hardirqs last disabled at (2878): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1644): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1644): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650 softirqs last disabled at (1575): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- EXT4-fs error (device loop2): ext4_xattr_inode_iget:441: inode #18: comm syz.2.9: iget: bad extra_isize 90 (inode size 256) EXT4-fs (loop2): Remounting filesystem read-only EXT4-fs warning (device loop2): ext4_evict_inode:273: xattr delete (err -30) EXT4-fs (loop2): 1 orphan inode deleted EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.