loop3: detected capacity change from 0 to 512 EXT4-f EXT4-fs (loop3): orphan cleanup on readonly fs ------------[ cut here ]------------ EA inode 11 i_nlink=0 WARNING: fs/ext4/xattr.c:1058 at ext4_xattr_inode_update_ref+0x444/0x44c fs/ext4/xattr.c:1056, CPU#1: syz.3.99/7150 Modules linked in: CPU: 1 UID: 0 PID: 7150 Comm: syz.3.99 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 : ffff80009f086e80 x29: ffff80009f086f20 x28: 0000000000000000 x27: 1fffe0002170b695 x26: dfff800000000000 x25: ffff80009f086ea0 x24: ffff700013e10dd4 x23: ffff800092e87000 x22: ffff00010b85b2f8 x21: 0000000000000000 x20: 0000000000000001 x19: ffff00010b85b2b8 x18: 00000000ffffffff x17: ffff800093599000 x16: ffff800082e5e68c x15: 0000000000000001 x14: 1fffe000337818fa x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 0000000000014678 x9 : 9784934de951fe00 x8 : 9784934de951fe00 x7 : ffff8000805761f8 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000807f1034 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_inode_dec_ref_all+0x79c/0xc50 fs/ext4/xattr.c:1227 ext4_xattr_delete_inode+0x8b0/0xa40 fs/ext4/xattr.c:2951 ext4_evict_inode+0xb50/0x1058 fs/ext4/inode.c:270 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: 1684 hardirqs last enabled at (1683): [] vprintk_store+0x898/0xac8 kernel/printk/printk.c:2332 hardirqs last disabled at (1684): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1104): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1102): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop3): 1 orphan inode deleted EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 ro without journal. Quota mode: writeback. EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000.