EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd14ccf8 x25: ffff0000dd14cd20 x24: ffff800088a09bc0 x23: ffff0000dc15c000 x22: 0000000000000381 x21: ffff0000dc15c068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 00000000ffffffff x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 142164 hardirqs last enabled at (142163): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (142163): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (142164): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (142088): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (142088): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (142088): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (142086): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (142086): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (142086): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2860: Unable to expand inode 14. Delete some EAs or run e2fsck. EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000d3177258 x25: ffff0000d3177280 x24: ffff800088a09bc0 x23: ffff0000cedb6000 x22: 0000000000000381 x21: ffff0000cedb6068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 149582 hardirqs last enabled at (149581): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (149581): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (149581): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (149582): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (149514): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (149514): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (149514): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (149512): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (149512): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (149512): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3258b90 x25: ffff0000e3258bb8 x24: ffff800088a09bc0 x23: ffff0000cef4c000 x22: 0000000000000381 x21: ffff0000cef4c068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 156422 hardirqs last enabled at (156421): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (156421): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (156421): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (156422): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (156352): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (156352): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (156352): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (156350): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (156350): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (156350): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e325f258 x25: ffff0000e325f280 x24: ffff800088a09bc0 x23: ffff0000d8768000 x22: 0000000000000381 x21: ffff0000d8768068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 162602 hardirqs last enabled at (162601): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (162601): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (162602): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (162534): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (162534): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (162534): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (162532): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (162532): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (162532): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e31b5650 x25: ffff0000e31b5678 x24: ffff800088a09bc0 x23: ffff0000d22a4000 x22: 0000000000000381 x21: ffff0000d22a4068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 0000000000000000 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 169980 hardirqs last enabled at (169979): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (169979): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (169980): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (169912): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (169912): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (169912): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (169910): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (169910): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (169910): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e325b0f0 x25: ffff0000e325b118 x24: ffff800088a09bc0 x23: ffff0000d0f10000 x22: 0000000000000381 x21: ffff0000d0f10068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 0000000000000000 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 176846 hardirqs last enabled at (176845): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (176845): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (176846): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (176774): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (176774): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (176774): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (176772): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (176772): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (176772): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e31bb0f0 x25: ffff0000e31bb118 x24: ffff800088a09bc0 x23: ffff0000dc1f8000 x22: 0000000000000381 x21: ffff0000dc1f8068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 183306 hardirqs last enabled at (183305): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (183305): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (183305): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (183306): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (183236): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (183236): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (183236): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (183234): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (183234): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (183234): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e326a798 x25: ffff0000e326a7c0 x24: ffff800088a09bc0 x23: ffff0000d4758000 x22: 0000000000000381 x21: ffff0000d4758068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 189106 hardirqs last enabled at (189105): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (189105): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (189105): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (189106): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (189036): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (189036): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (189036): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (189034): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (189034): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (189034): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3272798 x25: ffff0000e32727c0 x24: ffff800088a09bc0 x23: ffff0000d47ba000 x22: 0000000000000381 x21: ffff0000d47ba068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 195228 hardirqs last enabled at (195227): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (195227): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (195227): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (195228): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (195154): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (195154): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (195154): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (195152): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (195152): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (195152): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd134cf8 x25: ffff0000dd134d20 x24: ffff800088a09bc0 x23: ffff0000d53b2000 x22: 0000000000000381 x21: ffff0000d53b2068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 200584 hardirqs last enabled at (200583): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (200583): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (200583): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (200584): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (200506): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (200506): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (200506): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (200504): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (200504): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (200504): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e327d650 x25: ffff0000e327d678 x24: ffff800088a09bc0 x23: ffff0000dc71a000 x22: 0000000000000381 x21: ffff0000dc71a068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000965 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 206116 hardirqs last enabled at (206115): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (206115): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (206116): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (206046): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (206046): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (206046): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (206044): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (206044): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (206044): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd15ba48 x25: ffff0000dd15ba70 x24: ffff800088a09bc0 x23: ffff0000d4756000 x22: 0000000000000381 x21: ffff0000d4756068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 00000000000009ca x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 212002 hardirqs last enabled at (212001): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (212001): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (212001): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (212002): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (211924): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (211924): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (211924): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (211922): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (211922): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (211922): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd1594e8 x25: ffff0000dd159510 x24: ffff800088a09bc0 x23: ffff0000dc7ce000 x22: 0000000000000381 x21: ffff0000dc7ce068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000a2c x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 217762 hardirqs last enabled at (217761): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (217761): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (217762): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (217696): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (217696): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (217696): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (217694): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (217694): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (217694): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3280b90 x25: ffff0000e3280bb8 x24: ffff800088a09bc0 x23: ffff0000dc882000 x22: 0000000000000381 x21: ffff0000dc882068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000a8a x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 223286 hardirqs last enabled at (223285): [] raw_spin_rq_unlock_irq+0x18/0x28 kernel/sched/sched.h:1644 hardirqs last disabled at (223286): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (223216): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (223216): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (223216): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (223214): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (223214): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (223214): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3072798 x25: ffff0000e30727c0 x24: ffff800088a09bc0 x23: ffff0000d69be000 x22: 0000000000000381 x21: ffff0000d69be068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 228592 hardirqs last enabled at (228591): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (228591): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (228591): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (228592): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (228518): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (228518): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (228518): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (228516): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (228516): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (228516): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3000238 x25: ffff0000e3000260 x24: ffff800088a09bc0 x23: ffff0000d6d72000 x22: 0000000000000381 x21: ffff0000d6d72068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 0000000000000000 x17: 0000000000000000 x16: ffff0000d4db2eb4 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 234234 hardirqs last enabled at (234233): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (234233): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (234233): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (234234): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (234154): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (234154): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (234154): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (234152): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (234152): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (234152): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3075650 x25: ffff0000e3075678 x24: ffff800088a09bc0 x23: ffff0000d6fb4000 x22: 0000000000000381 x21: ffff0000d6fb4068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 240152 hardirqs last enabled at (240151): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (240151): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (240151): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (240152): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (240074): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (240074): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (240074): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (240072): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (240072): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (240072): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000d3170b90 x25: ffff0000d3170bb8 x24: ffff800088a09bc0 x23: ffff0000d72a0000 x22: 0000000000000381 x21: ffff0000d72a0068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 245686 hardirqs last enabled at (245685): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (245685): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (245686): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (245616): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (245616): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (245616): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (245614): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (245614): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (245614): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3082798 x25: ffff0000e30827c0 x24: ffff800088a09bc0 x23: ffff0000de116000 x22: 0000000000000381 x21: ffff0000de116068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 252052 hardirqs last enabled at (252051): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (252051): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (252051): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (252052): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (251976): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (251976): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (251976): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (251974): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (251974): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (251974): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd16e900 x25: ffff0000dd16e928 x24: ffff800088a09bc0 x23: ffff0000de242000 x22: 0000000000000381 x21: ffff0000de242068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000ba5 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 257250 hardirqs last enabled at (257249): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (257249): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (257250): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (257180): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (257180): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (257180): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (257178): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (257178): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (257178): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e309e900 x25: ffff0000e309e928 x24: ffff800088a09bc0 x23: ffff0000d189e000 x22: 0000000000000381 x21: ffff0000d189e068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 0000000000000000 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000bff x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 263420 hardirqs last enabled at (263419): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (263419): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (263420): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (263346): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (263346): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (263346): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (263344): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (263344): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (263344): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e30994e8 x25: ffff0000e3099510 x24: ffff800088a09bc0 x23: ffff0000ddd32000 x22: 0000000000000381 x21: ffff0000ddd32068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 0000000000000000 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 269564 hardirqs last enabled at (269563): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (269563): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (269564): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (269494): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (269494): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (269494): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (269492): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (269492): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (269492): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3078b90 x25: ffff0000e3078bb8 x24: ffff800088a09bc0 x23: ffff0000d8f34000 x22: 0000000000000381 x21: ffff0000d8f34068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 00000000000009dc x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 274932 hardirqs last enabled at (274931): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (274931): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (274931): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (274932): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (274864): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (274864): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (274864): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (274862): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (274862): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (274862): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3288238 x25: ffff0000e3288260 x24: ffff800088a09bc0 x23: ffff0000d8ab2000 x22: 0000000000000381 x21: ffff0000d8ab2068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000c5c x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 280668 hardirqs last enabled at (280667): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (280667): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (280668): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (280600): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (280600): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (280600): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (280598): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (280598): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (280598): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3079e40 x25: ffff0000e3079e68 x24: ffff800088a09bc0 x23: ffff0000d60d2000 x22: 0000000000000381 x21: ffff0000d60d2068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 287400 hardirqs last enabled at (287399): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (287399): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (287400): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (287324): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (287324): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (287324): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (287322): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (287322): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (287322): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e308ccf8 x25: ffff0000e308cd20 x24: ffff800088a09bc0 x23: ffff0000d99e4000 x22: 0000000000000381 x21: ffff0000d99e4068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 292848 hardirqs last enabled at (292847): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (292847): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (292847): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (292848): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (292774): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (292774): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (292774): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (292772): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (292772): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (292772): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32943a0 x25: ffff0000e32943c8 x24: ffff800088a09bc0 x23: ffff0000d98fa000 x22: 0000000000000381 x21: ffff0000d98fa068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 298318 hardirqs last enabled at (298317): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (298317): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (298317): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (298318): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (298244): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (298244): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (298244): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (298242): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (298242): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (298242): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd1843a0 x25: ffff0000dd1843c8 x24: ffff800088a09bc0 x23: ffff0000d98e6000 x22: 0000000000000381 x21: ffff0000d98e6068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000afe x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 304150 hardirqs last enabled at (304149): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (304149): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (304150): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (304082): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (304082): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (304082): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (304080): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (304080): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (304080): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e30a30f0 x25: ffff0000e30a3118 x24: ffff800088a09bc0 x23: ffff0000de556000 x22: 0000000000000381 x21: ffff0000de556068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000d33 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 309484 hardirqs last enabled at (309483): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (309483): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (309484): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (309416): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (309416): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (309416): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (309414): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (309414): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (309414): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e329b0f0 x25: ffff0000e329b118 x24: ffff800088a09bc0 x23: ffff0000da8de000 x22: 0000000000000381 x21: ffff0000da8de068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000d8d x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 315602 hardirqs last enabled at (315601): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (315601): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (315602): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (315530): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (315530): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (315530): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (315528): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (315528): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (315528): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32a4cf8 x25: ffff0000e32a4d20 x24: ffff800088a09bc0 x23: ffff0000d9cb6000 x22: 0000000000000381 x21: ffff0000d9cb6068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000de7 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 321042 hardirqs last enabled at (321041): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (321041): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (321042): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (320970): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (320970): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (320970): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (320968): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (320968): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (320968): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32a1e40 x25: ffff0000e32a1e68 x24: ffff800088a09bc0 x23: ffff0000c3118000 x22: 0000000000000381 x21: ffff0000c3118068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000e41 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 326462 hardirqs last enabled at (326461): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (326461): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (326462): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (326394): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (326394): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (326394): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (326392): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (326392): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (326392): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32a9e40 x25: ffff0000e32a9e68 x24: ffff800088a09bc0 x23: ffff0000d9ee4000 x22: 0000000000000381 x21: ffff0000d9ee4068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 00000000ffffffff x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 332620 hardirqs last enabled at (332619): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (332619): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (332620): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (332548): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (332548): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (332548): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (332546): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (332546): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (332546): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd17d650 x25: ffff0000dd17d678 x24: ffff800088a09bc0 x23: ffff0000c3020000 x22: 0000000000000381 x21: ffff0000c3020068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 337764 hardirqs last enabled at (337763): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (337763): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (337764): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (337694): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (337694): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (337694): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (337692): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (337692): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (337692): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32af258 x25: ffff0000e32af280 x24: ffff800088a09bc0 x23: ffff0000c66b0000 x22: 0000000000000381 x21: ffff0000c66b0068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 344166 hardirqs last enabled at (344165): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (344165): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (344166): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (344090): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (344090): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (344090): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (344088): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (344088): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (344088): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd13ccf8 x25: ffff0000dd13cd20 x24: ffff800088a09bc0 x23: ffff0000c56ca000 x22: 0000000000000381 x21: ffff0000c56ca068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 349690 hardirqs last enabled at (349689): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (349689): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (349689): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (349690): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (349616): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (349616): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (349616): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (349614): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (349614): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (349614): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e31c14e8 x25: ffff0000e31c1510 x24: ffff800088a09bc0 x23: ffff0000dc9e2000 x22: 0000000000000381 x21: ffff0000dc9e2068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 356846 hardirqs last enabled at (356845): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (356845): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (356846): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (356778): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (356778): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (356778): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (356776): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (356776): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (356776): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32ba798 x25: ffff0000e32ba7c0 x24: ffff800088a09bc0 x23: ffff0000c6d74000 x22: 0000000000000381 x21: ffff0000c6d74068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 362472 hardirqs last enabled at (362471): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (362471): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (362472): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (362402): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (362402): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (362402): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (362400): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (362400): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (362400): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e31c5fa8 x25: ffff0000e31c5fd0 x24: ffff800088a09bc0 x23: ffff0000c9adc000 x22: 0000000000000381 x21: ffff0000c9adc068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 368116 hardirqs last enabled at (368115): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (368115): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (368116): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (368048): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (368048): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (368048): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (368046): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (368046): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (368046): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e31c1e40 x25: ffff0000e31c1e68 x24: ffff800088a09bc0 x23: ffff0000c7eb0000 x22: 0000000000000381 x21: ffff0000c7eb0068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 374058 hardirqs last enabled at (374057): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (374057): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (374057): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (374058): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (373982): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (373982): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (373982): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (373980): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (373980): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (373980): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32f1e40 x25: ffff0000e32f1e68 x24: ffff800088a09bc0 x23: ffff0000c7a02000 x22: 0000000000000381 x21: ffff0000c7a02068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 380062 hardirqs last enabled at (380061): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (380061): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (380061): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (380062): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (379988): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (379988): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (379988): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (379986): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (379986): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (379986): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32c5650 x25: ffff0000e32c5678 x24: ffff800088a09bc0 x23: ffff0000ca296000 x22: 0000000000000381 x21: ffff0000ca296068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 00000000ffffffff x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 386612 hardirqs last enabled at (386611): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (386611): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (386612): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (386522): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (386522): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (386522): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (386520): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (386520): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (386520): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32f7258 x25: ffff0000e32f7280 x24: ffff800088a09bc0 x23: ffff0000c5c78000 x22: 0000000000000381 x21: ffff0000c5c78068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 392146 hardirqs last enabled at (392145): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (392145): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (392146): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (392078): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (392078): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (392078): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (392076): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (392076): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (392076): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32f8238 x25: ffff0000e32f8260 x24: ffff800088a09bc0 x23: ffff0000ca7a0000 x22: 0000000000000381 x21: ffff0000ca7a0068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 397318 hardirqs last enabled at (397317): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (397317): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (397318): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (397250): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (397250): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (397250): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (397248): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (397248): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (397248): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when um EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32ca798 x25: ffff0000e32ca7c0 x24: ffff800088a09bc0 x23: ffff0000cbc6c000 x22: 0000000000000381 x21: ffff0000cbc6c068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 403750 hardirqs last enabled at (403749): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (403749): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (403749): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (403750): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (403678): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (403678): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (403678): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (403676): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (403676): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (403676): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3305fa8 x25: ffff0000e3305fd0 x24: ffff800088a09bc0 x23: ffff0000cb512000 x22: 0000000000000381 x21: ffff0000cb512068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 409604 hardirqs last enabled at (409603): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (409603): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (409604): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (409524): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (409524): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (409524): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (409522): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (409522): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (409522): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3308238 x25: ffff0000e3308260 x24: ffff800088a09bc0 x23: ffff0000dd86c000 x22: 0000000000000381 x21: ffff0000dd86c068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 415614 hardirqs last enabled at (415613): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (415613): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (415614): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (415548): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (415548): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (415548): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (415546): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (415546): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (415546): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3310238 x25: ffff0000e3310260 x24: ffff800088a09bc0 x23: ffff0000cfc3e000 x22: 0000000000000381 x21: ffff0000cfc3e068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 421206 hardirqs last enabled at (421205): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (421205): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (421206): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (421136): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (421136): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (421136): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (421134): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (421134): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (421134): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3318b90 x25: ffff0000e3318bb8 x24: ffff800088a09bc0 x23: ffff0000d2f2a000 x22: 0000000000000381 x21: ffff0000d2f2a068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 427388 hardirqs last enabled at (427387): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (427387): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (427388): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (427322): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (427322): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (427322): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (427320): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (427320): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (427320): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32443a0 x25: ffff0000e32443c8 x24: ffff800088a09bc0 x23: ffff0000cc3c6000 x22: 0000000000000381 x21: ffff0000cc3c6068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 434216 hardirqs last enabled at (434215): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (434215): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (434216): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (434142): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (434142): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (434142): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (434140): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (434140): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (434140): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3190238 x25: ffff0000e3190260 x24: ffff800088a09bc0 x23: ffff0000dc21a000 x22: 0000000000000381 x21: ffff0000dc21a068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 441348 hardirqs last enabled at (441347): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (441347): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (441348): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (441276): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (441276): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (441276): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (441274): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (441274): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (441274): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e331dfa8 x25: ffff0000e331dfd0 x24: ffff800088a09bc0 x23: ffff0000ced10000 x22: 0000000000000381 x21: ffff0000ced10068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 447654 hardirqs last enabled at (447653): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (447653): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (447653): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (447654): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (447576): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (447576): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (447576): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (447574): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (447574): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (447574): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3192798 x25: ffff0000e31927c0 x24: ffff800088a09bc0 x23: ffff0000ca846000 x22: 0000000000000381 x21: ffff0000ca846068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 453436 hardirqs last enabled at (453435): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (453435): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (453435): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (453436): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (453362): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (453362): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (453362): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (453360): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (453360): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (453360): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd14dfa8 x25: ffff0000dd14dfd0 x24: ffff800088a09bc0 x23: ffff0000d08e8000 x22: 0000000000000381 x21: ffff0000d08e8068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 459434 hardirqs last enabled at (459433): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (459433): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (459434): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (459366): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (459366): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (459366): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (459364): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (459364): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (459364): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3197258 x25: ffff0000e3197280 x24: ffff800088a09bc0 x23: ffff0000cffa0000 x22: 0000000000000381 x21: ffff0000cffa0068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 465506 hardirqs last enabled at (465505): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (465505): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (465505): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (465506): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (465432): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (465432): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (465432): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (465430): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (465430): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (465430): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3187258 x25: ffff0000e3187280 x24: ffff800088a09bc0 x23: ffff0000cf4fe000 x22: 0000000000000381 x21: ffff0000cf4fe068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 471258 hardirqs last enabled at (471257): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (471257): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (471257): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (471258): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (471188): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (471188): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (471188): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (471186): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (471186): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (471186): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_i EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3253a48 x25: ffff0000e3253a70 x24: ffff800088a09bc0 x23: ffff0000cfbfc000 x22: 0000000000000381 x21: ffff0000cfbfc068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 476630 hardirqs last enabled at (476629): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (476629): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (476629): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (476630): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (476560): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (476560): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (476560): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (476558): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (476558): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (476558): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3255fa8 x25: ffff0000e3255fd0 x24: ffff800088a09bc0 x23: ffff0000d297e000 x22: 0000000000000381 x21: ffff0000d297e068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 482208 hardirqs last enabled at (482207): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (482207): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (482207): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (482208): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (482138): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (482138): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (482138): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (482136): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (482136): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (482136): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e324ba48 x25: ffff0000e324ba70 x24: ffff800088a09bc0 x23: ffff0000d22ac000 x22: 0000000000000381 x21: ffff0000d22ac068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 487346 hardirqs last enabled at (487345): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (487345): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (487346): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (487278): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (487278): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (487278): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (487276): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (487276): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (487276): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e302ba48 x25: ffff0000e302ba70 x24: ffff800088a09bc0 x23: ffff0000e38c6000 x22: 0000000000000381 x21: ffff0000e38c6068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 493550 hardirqs last enabled at (493549): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (493549): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (493549): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (493550): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (493476): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (493476): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (493476): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (493474): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (493474): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (493474): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e33e0238 x25: ffff0000e33e0260 x24: ffff800088a09bc0 x23: ffff0000d0e7c000 x22: 0000000000000381 x21: ffff0000d0e7c068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 499492 hardirqs last enabled at (499491): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (499491): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (499492): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (499422): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (499422): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (499422): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (499420): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (499420): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (499420): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e31ae900 x25: ffff0000e31ae928 x24: ffff800088a09bc0 x23: ffff0000d7ac2000 x22: 0000000000000381 x21: ffff0000d7ac2068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 505596 hardirqs last enabled at (505595): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (505595): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (505596): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (505528): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (505528): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (505528): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (505526): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (505526): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (505526): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e33e2798 x25: ffff0000e33e27c0 x24: ffff800088a09bc0 x23: ffff0000d40e8000 x22: 0000000000000381 x21: ffff0000d40e8068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 510990 hardirqs last enabled at (510989): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (510989): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (510990): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (510918): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (510918): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (510918): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (510916): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (510916): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (510916): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e31bc3a0 x25: ffff0000e31bc3c8 x24: ffff800088a09bc0 x23: ffff0000c6af2000 x22: 0000000000000381 x21: ffff0000c6af2068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 516982 hardirqs last enabled at (516981): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (516981): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (516982): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (516916): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (516916): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (516916): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (516914): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (516914): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (516914): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e31b2798 x25: ffff0000e31b27c0 x24: ffff800088a09bc0 x23: ffff0000e39f6000 x22: 0000000000000381 x21: ffff0000e39f6068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 522454 hardirqs last enabled at (522453): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (522453): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (522453): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (522454): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (522380): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (522380): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (522380): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (522378): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (522378): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (522378): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e326c3a0 x25: ffff0000e326c3c8 x24: ffff800088a09bc0 x23: ffff0000d4bb2000 x22: 0000000000000381 x21: ffff0000d4bb2068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 527858 hardirqs last enabled at (527857): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (527857): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (527858): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (527790): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (527790): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (527790): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (527788): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (527788): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (527788): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e33eba48 x25: ffff0000e33eba70 x24: ffff800088a09bc0 x23: ffff0000d56be000 x22: 0000000000000381 x21: ffff0000d56be068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 534570 hardirqs last enabled at (534569): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (534569): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (534570): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (534502): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (534502): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (534502): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (534500): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (534500): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (534500): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e33ef258 x25: ffff0000e33ef280 x24: ffff800088a09bc0 x23: ffff0000dddc8000 x22: 0000000000000381 x21: ffff0000dddc8068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 539662 hardirqs last enabled at (539661): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (539661): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (539662): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (539586): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (539586): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (539586): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (539584): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (539584): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (539584): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32730f0 x25: ffff0000e3273118 x24: ffff800088a09bc0 x23: ffff0000dc67a000 x22: 0000000000000381 x21: ffff0000dc67a068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 544936 hardirqs last enabled at (544935): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (544935): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (544935): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (544936): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (544866): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (544866): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (544866): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (544864): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (544864): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (544864): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3275fa8 x25: ffff0000e3275fd0 x24: ffff800088a09bc0 x23: ffff0000de2da000 x22: 0000000000000381 x21: ffff0000de2da068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 550166 hardirqs last enabled at (550165): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (550165): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (550165): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (550166): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (550092): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (550092): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (550092): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (550090): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (550090): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (550090): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd130238 x25: ffff0000dd130260 x24: ffff800088a09bc0 x23: ffff0000ddfe8000 x22: 0000000000000381 x21: ffff0000ddfe8068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 557088 hardirqs last enabled at (557087): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (557087): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (557087): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (557088): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (557014): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (557014): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (557014): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (557012): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (557012): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (557012): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd15a798 x25: ffff0000dd15a7c0 x24: ffff800088a09bc0 x23: ffff0000dde40000 x22: 0000000000000381 x21: ffff0000dde40068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 562520 hardirqs last enabled at (562519): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (562519): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (562520): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (562450): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (562450): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (562450): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (562448): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (562448): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (562448): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e327ba48 x25: ffff0000e327ba70 x24: ffff800088a09bc0 x23: ffff0000d6e0a000 x22: 0000000000000381 x21: ffff0000d6e0a068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 567760 hardirqs last enabled at (567759): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (567759): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (567759): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (567760): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (567690): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (567690): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (567690): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (567688): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (567688): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (567688): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32dccf8 x25: ffff0000e32dcd20 x24: ffff800088a09bc0 x23: ffff0000d6f84000 x22: 0000000000000381 x21: ffff0000d6f84068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 572718 hardirqs last enabled at (572717): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (572717): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (572718): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (572650): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (572650): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (572650): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (572648): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (572648): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (572648): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3070b90 x25: ffff0000e3070bb8 x24: ffff800088a09bc0 x23: ffff0000de0cc000 x22: 0000000000000381 x21: ffff0000de0cc068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 577750 hardirqs last enabled at (577749): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (577749): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (577749): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (577750): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (577678): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (577678): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (577678): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (577676): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (577676): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (577676): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3007258 x25: ffff0000e3007280 x24: ffff800088a09bc0 x23: ffff0000c6ec8000 x22: 0000000000000381 x21: ffff0000c6ec8068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 583760 hardirqs last enabled at (583759): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (583759): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (583760): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (583692): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (583692): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (583692): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (583690): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (583690): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (583690): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3075fa8 x25: ffff0000e3075fd0 x24: ffff800088a09bc0 x23: ffff0000d21b0000 x22: 0000000000000381 x21: ffff0000d21b0068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 589558 hardirqs last enabled at (589557): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (589557): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (589558): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (589490): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (589490): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (589490): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (589488): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (589488): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (589488): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e30043a0 x25: ffff0000e30043c8 x24: ffff800088a09bc0 x23: ffff0000dde14000 x22: 0000000000000381 x21: ffff0000dde14068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 594668 hardirqs last enabled at (594667): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (594667): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (594667): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (594668): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (594594): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (594594): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (594594): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (594592): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (594592): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (594592): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e30814e8 x25: ffff0000e3081510 x24: ffff800088a09bc0 x23: ffff0000d4044000 x22: 0000000000000381 x21: ffff0000d4044068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 599876 hardirqs last enabled at (599875): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (599875): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (599875): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (599876): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (599802): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (599802): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (599802): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (599800): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (599800): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (599800): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd168b90 x25: ffff0000dd168bb8 x24: ffff800088a09bc0 x23: ffff0000d1dc8000 x22: 0000000000000381 x21: ffff0000d1dc8068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 605320 hardirqs last enabled at (605319): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (605319): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (605319): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (605320): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (605250): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (605250): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (605250): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (605248): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (605248): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (605248): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e309a798 x25: ffff0000e309a7c0 x24: ffff800088a09bc0 x23: ffff0000d4b90000 x22: 0000000000000381 x21: ffff0000d4b90068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 610560 hardirqs last enabled at (610559): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (610559): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (610559): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (610560): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (610482): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (610482): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (610482): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (610480): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (610480): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (610480): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e30994e8 x25: ffff0000e3099510 x24: ffff800088a09bc0 x23: ffff0000d8fee000 x22: 0000000000000381 x21: ffff0000d8fee068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 615742 hardirqs last enabled at (615741): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (615741): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (615742): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (615666): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (615666): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (615666): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (615664): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (615664): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (615664): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3085fa8 x25: ffff0000e3085fd0 x24: ffff800088a09bc0 x23: ffff0000d994a000 x22: 0000000000000381 x21: ffff0000d994a068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 621764 hardirqs last enabled at (621763): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (621763): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (621763): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (621764): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (621684): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (621684): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (621684): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (621682): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (621682): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (621682): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3097258 x25: ffff0000e3097280 x24: ffff800088a09bc0 x23: ffff0000d8f60000 x22: 0000000000000381 x21: ffff0000d8f60068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 627192 hardirqs last enabled at (627191): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (627191): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (627192): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (627124): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (627124): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (627124): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (627122): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (627122): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (627122): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xat EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3079e40 x25: ffff0000e3079e68 x24: ffff800088a09bc0 x23: ffff0000d99ea000 x22: 0000000000000381 x21: ffff0000d99ea068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 632818 hardirqs last enabled at (632817): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (632817): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (632817): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (632818): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (632748): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (632748): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (632748): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (632746): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (632746): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (632746): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e30843a0 x25: ffff0000e30843c8 x24: ffff800088a09bc0 x23: ffff0000d9c4e000 x22: 0000000000000381 x21: ffff0000d9c4e068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 638370 hardirqs last enabled at (638369): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (638369): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (638370): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (638302): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (638302): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (638302): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (638300): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (638300): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (638300): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e328d650 x25: ffff0000e328d678 x24: ffff800088a09bc0 x23: ffff0000da74c000 x22: 0000000000000381 x21: ffff0000da74c068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 643858 hardirqs last enabled at (643857): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (643857): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (643858): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (643784): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (643784): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (643784): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (643782): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (643782): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (643782): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32914e8 x25: ffff0000e3291510 x24: ffff800088a09bc0 x23: ffff0000de102000 x22: 0000000000000381 x21: ffff0000de102068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 651148 hardirqs last enabled at (651147): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (651147): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (651148): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (651074): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (651074): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (651074): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (651072): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (651072): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (651072): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e30a30f0 x25: ffff0000e30a3118 x24: ffff800088a09bc0 x23: ffff0000d8898000 x22: 0000000000000381 x21: ffff0000d8898068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 656334 hardirqs last enabled at (656333): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (656333): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (656334): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (656268): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (656268): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (656268): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (656266): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (656266): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (656266): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e30a0b90 x25: ffff0000e30a0bb8 x24: ffff800088a09bc0 x23: ffff0000c32aa000 x22: 0000000000000381 x21: ffff0000c32aa068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 661630 hardirqs last enabled at (661629): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (661629): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (661630): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (661560): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (661560): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (661560): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (661558): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (661558): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (661558): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd1430f0 x25: ffff0000dd143118 x24: ffff800088a09bc0 x23: ffff0000c1ff0000 x22: 0000000000000381 x21: ffff0000c1ff0068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 666930 hardirqs last enabled at (666929): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (666929): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (666930): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (666862): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (666862): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (666862): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (666860): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (666860): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (666860): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32a4cf8 x25: ffff0000e32a4d20 x24: ffff800088a09bc0 x23: ffff0000c5c28000 x22: 0000000000000381 x21: ffff0000c5c28068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 672254 hardirqs last enabled at (672253): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (672253): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (672254): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (672182): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (672182): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (672182): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (672180): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (672180): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (672180): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e328b0f0 x25: ffff0000e328b118 x24: ffff800088a09bc0 x23: ffff0000c65f0000 x22: 0000000000000381 x21: ffff0000c65f0068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 677970 hardirqs last enabled at (677969): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (677969): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (677970): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (677892): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (677892): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (677892): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (677890): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (677890): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (677890): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3260b90 x25: ffff0000e3260bb8 x24: ffff800088a09bc0 x23: ffff0000c5558000 x22: 0000000000000381 x21: ffff0000c5558068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 683628 hardirqs last enabled at (683627): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (683627): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (683628): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (683560): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (683560): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (683560): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (683558): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (683558): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (683558): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#1: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor.0/4936 Modules linked in: CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e3298b90 x25: ffff0000e3298bb8 x24: ffff800088a09bc0 x23: ffff0000c61f0000 x22: 0000000000000381 x21: ffff0000c61f0068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 688638 hardirqs last enabled at (688637): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (688637): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (688638): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (688568): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (688568): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (688568): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (688566): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (688566): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (688566): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32630f0 x25: ffff0000e3263118 x24: ffff800088a09bc0 x23: ffff0000d6a9c000 x22: 0000000000000381 x21: ffff0000d6a9c068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 695082 hardirqs last enabled at (695081): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (695081): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (695081): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (695082): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (695006): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (695006): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (695006): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (695004): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (695004): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (695004): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e32b0b90 x25: ffff0000e32b0bb8 x24: ffff800088a09bc0 x23: ffff0000db05a000 x22: 0000000000000381 x21: ffff0000db05a068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 0000000000000000 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 700364 hardirqs last enabled at (700363): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (700363): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (700364): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (700292): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (700292): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (700292): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (700290): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (700290): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (700290): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000dd13dfa8 x25: ffff0000dd13dfd0 x24: ffff800088a09bc0 x23: ffff0000c85b2000 x22: 0000000000000381 x21: ffff0000c85b2068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 705766 hardirqs last enabled at (705765): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (705765): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (705766): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (705696): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (705696): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (705696): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (705694): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (705694): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (705694): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 lr : ext4_xattr_inode_create fs/ext4/xattr.c:1480 [inline] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 fs/ext4/xattr.c:1600 sp : ffff80009b2f7060 x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 x26: ffff0000e31c7258 x25: ffff0000e31c7280 x24: ffff800088a09bc0 x23: ffff0000c9c3a000 x22: 0000000000000381 x21: ffff0000c9c3a068 x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 Call trace: ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline] (P) ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600 (P) ext4_xattr_block_set+0x1c0/0x2188 fs/ext4/xattr.c:1920 ext4_xattr_move_to_block fs/ext4/xattr.c:2671 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2746 [inline] ext4_expand_extra_isize_ea+0xb18/0x13a0 fs/ext4/xattr.c:2834 __ext4_expand_extra_isize+0x29c/0x370 fs/ext4/inode.c:6434 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6477 [inline] __ext4_mark_inode_dirty+0x3a4/0x810 fs/ext4/inode.c:6555 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6587 __mark_inode_dirty+0x354/0x1a10 fs/fs-writeback.c:2623 mark_inode_dirty_sync include/linux/fs.h:2218 [inline] sync_lazytime+0x1a8/0x68c fs/fs-writeback.c:1737 iput+0x1cc/0xb90 fs/inode.c:1991 dentry_unlink_inode+0x3a8/0x484 fs/dcache.c:476 __dentry_kill+0x170/0x5fc fs/dcache.c:718 shrink_kill+0xe8/0x318 fs/dcache.c:1195 shrink_dentry_list+0x154/0x2a4 fs/dcache.c:1222 shrink_dcache_tree+0x40c/0x570 fs/dcache.c:-1 do_one_tree+0x24/0x58 fs/dcache.c:1721 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1738 generic_shutdown_super+0x70/0x2b8 fs/super.c:624 kill_block_super+0x44/0x90 fs/super.c:1725 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7492 deactivate_locked_super+0xc4/0x140 fs/super.c:476 deactivate_super+0xd8/0xf8 fs/super.c:509 cleanup_mnt+0x328/0x3b8 fs/namespace.c:1312 __cleanup_mnt+0x20/0x30 fs/namespace.c:1319 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 710688 hardirqs last enabled at (710687): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (710687): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (710688): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (710616): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (710616): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (710616): [] do_sve_acc+0x32c/0x4b8 arch/arm64/kernel/fpsimd.c:1349 softirqs last disabled at (710614): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (710614): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (710614): [] do_sve_acc+0x10c/0x4b8 arch/arm64/kernel/fpsimd.c:1325 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting ------------[ cut here ]------------ WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_create fs/ext4/xattr.c:-1 [inline], CPU#0: syz-executor.0/4936 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor.0/4936 Modules linked in: CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT