------------[ cut here ]------------ WARNING: CPU: 0 PID: 4437 at fs/ext4/xattr.c:1874 ext4_xattr_block_set+0x2010/0x2810 fs/ext4/xattr.c:1874 Modules linked in: CPU: 0 PID: 4437 Comm: syz.1.7 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : ext4_xattr_block_set+0x2010/0x2810 fs/ext4/xattr.c:1874 lr : ext4_xattr_block_set+0x2010/0x2810 fs/ext4/xattr.c:1874 sp : ffff800021ca6f20 x29: ffff800021ca7090 x28: ffff0000d8628e00 x27: ffff800021ca71e0 x26: dfff800000000000 x25: ffff0000e1fda0f0 x24: ffff0000d8628e00 x23: 1ffff00004394e3e x22: 1ffff00004394e3d x21: 0000000000000000 x20: ffff800021ca71f0 x19: ffff800021ca71e8 x18: ffff800011abbcc0 x17: ffff8000181f8000 x16: ffff8000082d0e30 x15: 0000000000000002 x14: 00000000ffffffc3 x13: 00000000ffffffc3 x12: 0000000000080000 x11: 0000000000077660 x10: ffff800022389000 x9 : ffff800008e51da8 x8 : 0000000000077661 x7 : ffff0000e180c000 x6 : ffff0000e180c020 x5 : ffff800021ca7020 x4 : ffff0000d8628e28 x3 : ffff800008e4fe50 x2 : 0000000000000028 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: ext4_xattr_block_set+0x2010/0x2810 fs/ext4/xattr.c:1874 ext4_xattr_move_to_block fs/ext4/xattr.c:2625 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2700 [inline] ext4_expand_extra_isize_ea+0xcb8/0x15cc fs/ext4/xattr.c:2792 __ext4_expand_extra_isize+0x298/0x358 fs/ext4/inode.c:5966 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6009 [inline] __ext4_mark_inode_dirty+0x3e4/0x790 fs/ext4/inode.c:6087 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:360 ext4_orphan_cleanup+0x908/0x104c fs/ext4/orphan.c:474 __ext4_fill_super fs/ext4/super.c:5537 [inline] ext4_fill_super+0x6920/0x6e34 fs/ext4/super.c:5668 get_tree_bdev+0x358/0x544 fs/super.c:1366 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5698 vfs_get_tree+0x90/0x274 fs/super.c:1573 do_new_mount+0x228/0x810 fs/namespace.c:3069 path_mount+0x5b4/0xe78 fs/namespace.c:3399 do_mount fs/namespace.c:3412 [inline] __do_sys_mount fs/namespace.c:3620 [inline] __se_sys_mount fs/namespace.c:3597 [inline] __arm64_sys_mount+0x49c/0x584 fs/namespace.c:3597 __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: 3498 hardirqs last enabled at (3497): [] lookup_bh_lru fs/buffer.c:1291 [inline] hardirqs last enabled at (3497): [] __find_get_block+0x1c8/0xdfc fs/buffer.c:1303 hardirqs last disabled at (3498): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (2168): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (2166): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ EA inode 11 i_nlink=2 WARNING: CPU: 0 PID: 4437 at fs/ext4/xattr.c:1021 ext4_xattr_inode_update_ref+0x468/0x4ac fs/ext4/xattr.c:-1 Modules linked in: CPU: 0 PID: 4437 Comm: syz.1.7 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_update_ref+0x468/0x4ac fs/ext4/xattr.c:-1 lr : ext4_xattr_inode_update_ref+0x464/0x4ac fs/ext4/xattr.c:1019 sp : ffff800021ca6e80 x29: ffff800021ca6f00 x28: 0000000000000000 x27: dfff800000000000 x26: 1fffe0001c3fb81b x25: ffff700004394dd0 x24: 0000000000000000 x23: ffff800017a8a000 x22: ffff800021ca6e80 x21: 0000000000000002 x20: 0000000000000001 x19: ffff0000e1fdbee0 x18: ffff800011abbcc0 x17: 1fffe00033ed797e x16: ffff8000082d22e0 x15: ffff8000150bd000 x14: 0000000000000100 x13: 1ffff00002a180b1 x12: 0000000000000001 x11: 1fffe0001894b3d0 x10: 0000000000000000 x9 : 8c077514eb52d500 x8 : 8c077514eb52d500 x7 : ffff800008251e10 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff800008240d6c x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: ext4_xattr_inode_update_ref+0x468/0x4ac fs/ext4/xattr.c:-1 ext4_xattr_inode_dec_ref fs/ext4/xattr.c:1044 [inline] ext4_xattr_set_entry+0x918/0x15ac fs/ext4/xattr.c:1682 ext4_xattr_ibody_set+0x204/0x600 fs/ext4/xattr.c:2229 ext4_xattr_move_to_block fs/ext4/xattr.c:2632 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2700 [inline] ext4_expand_extra_isize_ea+0xd00/0x15cc fs/ext4/xattr.c:2792 __ext4_expand_extra_isize+0x298/0x358 fs/ext4/inode.c:5966 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6009 [inline] __ext4_mark_inode_dirty+0x3e4/0x790 fs/ext4/inode.c:6087 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:360 ext4_orphan_cleanup+0x908/0x104c fs/ext4/orphan.c:474 __ext4_fill_super fs/ext4/super.c:5537 [inline] ext4_fill_super+0x6920/0x6e34 fs/ext4/super.c:5668 get_tree_bdev+0x358/0x544 fs/super.c:1366 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5698 vfs_get_tree+0x90/0x274 fs/super.c:1573 do_new_mount+0x228/0x810 fs/namespace.c:3069 path_mount+0x5b4/0xe78 fs/namespace.c:3399 do_mount fs/namespace.c:3412 [inline] __do_sys_mount fs/namespace.c:3620 [inline] __se_sys_mount fs/namespace.c:3597 [inline] __arm64_sys_mount+0x49c/0x584 fs/namespace.c:3597 __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: 3768 hardirqs last enabled at (3767): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline] hardirqs last enabled at (3767): [] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:5003 hardirqs last disabled at (3768): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (3656): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (3656): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624 softirqs last disabled at (3501): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop1): 1 orphan inode deleted EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop1): unmounting filesystem.