EXT4-fs: Warning: mounting with an experimental mount option 'dioread_nolock' for blocksize < PAGE_SIZE
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EA inode 11 i_nlink=0
WARNING: CPU: 0 PID: 6364 at fs/ext4/xattr.c:1006 ext4_xattr_inode_update_ref+0x474/0x4b8 fs/ext4/xattr.c:1004
Modules linked in:
CPU: 0 PID: 6364 Comm: syz.4.699 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : ext4_xattr_inode_update_ref+0x474/0x4b8 fs/ext4/xattr.c:1004
lr : ext4_xattr_inode_update_ref+0x474/0x4b8 fs/ext4/xattr.c:1004
sp : ffff800021096dc0
x29: ffff800021096e70 x28: 0000000000000000 x27: dfff800000000000
x26: ffff800021096de0 x25: ffff700004212dbc x24: 0000000000000000
x23: ffff800017c11000 x22: ffff0000c064ab10 x21: 0000000000000000
x20: 0000000000000001 x19: ffff0000c064aad0 x18: ffff800011babf60
x17: 0000000000000000 x16: ffff800011a529a8 x15: 0000000000000002
x14: 0000000000000001 x13: 1fffe00033e9f7a3 x12: 0000000000080000
x11: 000000000003e2d5 x10: ffff800028e70000 x9 : bc4c8c37930b8100
x8 : bc4c8c37930b8100 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800021096858 x4 : ffff800015324ea0 x3 : ffff80000853974c
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
 ext4_xattr_inode_update_ref+0x474/0x4b8 fs/ext4/xattr.c:1004
 ext4_xattr_inode_dec_ref fs/ext4/xattr.c:1029 [inline]
 ext4_xattr_set_entry+0x918/0x15a0 fs/ext4/xattr.c:1673
 ext4_xattr_ibody_set+0x204/0x5f8 fs/ext4/xattr.c:2217
 ext4_xattr_move_to_block fs/ext4/xattr.c:2620 [inline]
 ext4_xattr_make_inode_space fs/ext4/xattr.c:2688 [inline]
 ext4_expand_extra_isize_ea+0xea4/0x17ac fs/ext4/xattr.c:2776
 __ext4_expand_extra_isize+0x298/0x358 fs/ext4/inode.c:6003
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6046 [inline]
 __ext4_mark_inode_dirty+0x3e4/0x784 fs/ext4/inode.c:6124
 ext4_evict_inode+0xb64/0x1278 fs/ext4/inode.c:281
 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:5574 [inline]
 ext4_fill_super+0x594c/0x61b0 fs/ext4/super.c:5693
 get_tree_bdev+0x358/0x544 fs/super.c:1366
 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5723
 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+0x98/0x290 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: 2972
hardirqs last  enabled at (2971): [<ffff800008310650>] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:261
hardirqs last disabled at (2972): [<ffff800011a4ebe4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (2866): [<ffff8000081acd08>] softirq_handle_end kernel/softirq.c:439 [inline]
softirqs last  enabled at (2866): [<ffff8000081acd08>] handle_softirqs+0xaec/0xc60 kernel/softirq.c:624
softirqs last disabled at (2855): [<ffff800008020e4c>] __do_softirq+0x14/0x20 kernel/softirq.c:630
---[ end trace 0000000000000000 ]---
EXT4-fs error (device loop4): ext4_free_inode:355: comm syz.4.699: bit already cleared for inode 11
EXT4-fs error (device loop4) in ext4_free_inode:362: Corrupt filesystem
EXT4-fs error (device loop4) in ext4_free_inode:362: Corrupt filesystem
EXT4-fs (loop4): 1 orphan inode deleted
EXT4-fs (loop4): mounted filesystem without journal. Quota mode: none.