loop0: detected capacity change from 0 to 512 ------------[ cut here ]------------ EA inode 11 i_nlink=2 WARNING: CPU: 0 PID: 4542 at fs/ext4/xattr.c:1005 ext4_xattr_inode_update_ref+0x454/0x498 fs/ext4/xattr.c:1003 Modules linked in: CPU: 0 PID: 4542 Comm: syz.0.17 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+0x454/0x498 fs/ext4/xattr.c:1003 lr : ext4_xattr_inode_update_ref+0x454/0x498 fs/ext4/xattr.c:1003 sp : ffff800021106dc0 x29: ffff800021106e70 x28: 0000000000000000 x27: dfff800000000000 x26: ffff800021106de0 x25: ffff700004220dbc x24: 0000000000000000 x23: ffff800017bc9000 x22: ffff0000ea0dd330 x21: 0000000000000002 x20: 0000000000000001 x19: ffff0000ea0dd2f0 x18: ffff800011b7bf60 x17: 0000000000000000 x16: ffff8000082d9364 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe00033eaaba3 x12: 0000000000ff0100 x11: ff00800008194238 x10: 0000000000000000 x9 : e6517e1178383700 x8 : e6517e1178383700 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800021106858 x4 : ffff8000152e4cc0 x3 : ffff800008538160 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: ext4_xattr_inode_update_ref+0x454/0x498 fs/ext4/xattr.c:1003 ext4_xattr_inode_dec_ref fs/ext4/xattr.c:1028 [inline] ext4_xattr_set_entry+0x918/0x15a0 fs/ext4/xattr.c:1670 ext4_xattr_ibody_set+0x204/0x5f8 fs/ext4/xattr.c:2214 ext4_xattr_move_to_block fs/ext4/xattr.c:2617 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2685 [inline] ext4_expand_extra_isize_ea+0xea4/0x17ac fs/ext4/xattr.c:2773 __ext4_expand_extra_isize+0x298/0x358 fs/ext4/inode.c:5984 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6027 [inline] __ext4_mark_inode_dirty+0x3e4/0x784 fs/ext4/inode.c:6105 ext4_evict_inode+0xb64/0x1278 fs/ext4/inode.c:279 evict+0x3e0/0x828 fs/inode.c:705 iput_final fs/inode.c:1834 [inline] iput+0x754/0x7e4 fs/inode.c:1860 ext4_process_orphan+0x240/0x2b4 fs/ext4/orphan.c:358 ext4_orphan_cleanup+0x920/0x1060 fs/ext4/orphan.c:472 __ext4_fill_super fs/ext4/super.c:5556 [inline] ext4_fill_super+0x6188/0x660c 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+0x5bc/0xe80 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/0x59c fs/namespace.c:3606 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 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: 4324 hardirqs last enabled at (4323): [] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:261 hardirqs last disabled at (4324): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1528): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1526): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- EXT4-fs error (device loop0): ext4_xattr_inode_iget:401: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) EXT4-fs error (device loop0): ext4_xattr_inode_iget:406: comm syz.0.17: error while reading EA inode 18 err=-117 EXT4-fs error (device loop0): ext4_xattr_inode_iget:401: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) EXT4-fs error (device loop0): ext4_xattr_inode_iget:406: comm syz.0.17: error while reading EA inode 18 err=-117 EXT4-fs (loop0): 1 orphan inode deleted EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none.