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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e285c3a0 x25: ffff0000e285c3c8 x24: ffff800088a09b80 x23: ffff0000d14fe000 x22: 000000000000feeb x21: ffff0000d14fe068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 00000000ffffffff x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 152664 hardirqs last enabled at (152663): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (152663): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (152664): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (152656): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (152656): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (152656): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (152654): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (152654): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (152654): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2860: Unable to expand inode 12. 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#1: syz-executor/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f067a798 x25: ffff0000f067a7c0 x24: ffff800088a09b80 x23: ffff0000c66e8000 x22: 000000000000feeb x21: ffff0000c66e8068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 159856 hardirqs last enabled at (159855): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (159855): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (159856): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (159848): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (159848): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (159848): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (159846): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (159846): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (159846): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f0678238 x25: ffff0000f0678260 x24: ffff800088a09b80 x23: ffff0000d3ebc000 x22: 000000000000feeb x21: ffff0000d3ebc068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 166534 hardirqs last enabled at (166533): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (166533): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (166534): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (166526): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (166526): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (166526): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (166524): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (166524): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (166524): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. EXT4-fs warning (device loop0): ext4_xatt 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2859e40 x25: ffff0000e2859e68 x24: ffff800088a09b80 x23: ffff0000da2ce000 x22: 000000000000feeb x21: ffff0000da2ce068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 172118 hardirqs last enabled at (172117): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (172117): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (172117): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (172118): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (172108): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (172108): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (172108): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (172106): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (172106): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (172106): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e285d650 x25: ffff0000e285d678 x24: ffff800088a09b80 x23: ffff0000dd628000 x22: 000000000000feeb x21: ffff0000dd628068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 178802 hardirqs last enabled at (178801): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (178801): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (178802): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (178794): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (178794): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (178794): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (178792): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (178792): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (178792): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f05c7258 x25: ffff0000f05c7280 x24: ffff800088a09b80 x23: ffff0000d67b6000 x22: 000000000000feeb x21: ffff0000d67b6068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 184050 hardirqs last enabled at (184049): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (184049): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (184049): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (184050): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (184040): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (184040): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (184040): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (184038): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (184038): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (184038): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e29f14e8 x25: ffff0000e29f1510 x24: ffff800088a09b80 x23: ffff0000ddd24000 x22: 000000000000feeb x21: ffff0000ddd24068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 189366 hardirqs last enabled at (189365): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (189365): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (189365): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (189366): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (189356): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (189356): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (189356): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (189354): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (189354): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (189354): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f067e900 x25: ffff0000f067e928 x24: ffff800088a09b80 x23: ffff0000d0700000 x22: 000000000000feeb x21: ffff0000d0700068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 195066 hardirqs last enabled at (195065): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (195065): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (195065): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (195066): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (195056): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (195056): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (195056): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (195054): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (195054): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (195054): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000dc93b0f0 x25: ffff0000dc93b118 x24: ffff800088a09b80 x23: ffff0000dde8c000 x22: 000000000000feeb x21: ffff0000dde8c068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 200452 hardirqs last enabled at (200451): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (200451): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (200451): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (200452): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (200442): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (200442): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (200442): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (200440): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (200440): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (200440): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e29f6900 x25: ffff0000e29f6928 x24: ffff800088a09b80 x23: ffff0000d4a4e000 x22: 000000000000feeb x21: ffff0000d4a4e068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 207070 hardirqs last enabled at (207069): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (207069): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (207070): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (207062): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (207062): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (207062): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (207060): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (207060): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (207060): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e29f43a0 x25: ffff0000e29f43c8 x24: ffff800088a09b80 x23: ffff0000d3560000 x22: 000000000000feeb x21: ffff0000d3560068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 212372 hardirqs last enabled at (212371): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (212371): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (212371): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (212372): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (212362): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (212362): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (212362): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (212360): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (212360): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (212360): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2bdccf8 x25: ffff0000e2bdcd20 x24: ffff800088a09b80 x23: ffff0000d833e000 x22: 000000000000feeb x21: ffff0000d833e068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 000000000000086f x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 218038 hardirqs last enabled at (218037): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (218037): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (218037): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (218038): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (218028): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (218028): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (218028): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (218026): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (218026): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (218026): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e297d650 x25: ffff0000e297d678 x24: ffff800088a09b80 x23: ffff0000d7358000 x22: 000000000000feeb x21: ffff0000d7358068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 223434 hardirqs last enabled at (223433): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (223433): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (223434): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (223426): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (223426): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (223426): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (223424): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (223424): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (223424): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2bda798 x25: ffff0000e2bda7c0 x24: ffff800088a09b80 x23: ffff0000d88d2000 x22: 000000000000feeb x21: ffff0000d88d2068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000c75 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 229436 hardirqs last enabled at (229435): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (229435): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (229436): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (229428): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (229428): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (229428): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (229426): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (229426): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (229426): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2bd8238 x25: ffff0000e2bd8260 x24: ffff800088a09b80 x23: ffff0000d3a56000 x22: 000000000000feeb x21: ffff0000d3a56068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000ccf x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 234962 hardirqs last enabled at (234961): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (234961): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (234962): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (234954): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (234954): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (234954): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (234952): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (234952): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (234952): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000ed855650 x25: ffff0000ed855678 x24: ffff800088a09b80 x23: ffff0000cd5ee000 x22: 000000000000feeb x21: ffff0000cd5ee068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 240320 hardirqs last enabled at (240319): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (240319): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (240320): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (240312): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (240312): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (240312): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (240310): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (240310): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (240310): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000ed8530f0 x25: ffff0000ed853118 x24: ffff800088a09b80 x23: ffff0000d938c000 x22: 000000000000feeb x21: ffff0000d938c068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 00000000000008fe x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 247312 hardirqs last enabled at (247311): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (247311): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (247311): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (247312): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (247302): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (247302): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (247302): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (247300): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (247300): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (247300): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e28bba48 x25: ffff0000e28bba70 x24: ffff800088a09b80 x23: ffff0000d92c8000 x22: 000000000000feeb x21: ffff0000d92c8068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 252620 hardirqs last enabled at (252619): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (252619): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (252620): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (252612): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (252612): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (252612): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (252610): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (252610): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (252610): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e28b94e8 x25: ffff0000e28b9510 x24: ffff800088a09b80 x23: ffff0000d9f24000 x22: 000000000000feeb x21: ffff0000d9f24068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 257894 hardirqs last enabled at (257893): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (257893): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (257894): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (257886): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (257886): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (257886): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (257884): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (257884): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (257884): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000ed850b90 x25: ffff0000ed850bb8 x24: ffff800088a09b80 x23: ffff0000d7a94000 x22: 000000000000feeb x21: ffff0000d7a94068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000e37 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 263532 hardirqs last enabled at (263531): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (263531): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (263532): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (263524): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (263524): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (263524): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (263522): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (263522): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (263522): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2bdf258 x25: ffff0000e2bdf280 x24: ffff800088a09b80 x23: ffff0000da352000 x22: 000000000000feeb x21: ffff0000da352068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 268782 hardirqs last enabled at (268781): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (268781): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (268782): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (268774): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (268774): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (268774): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (268772): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (268772): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (268772): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2adb0f0 x25: ffff0000e2adb118 x24: ffff800088a09b80 x23: ffff0000dac8e000 x22: 000000000000feeb x21: ffff0000dac8e068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 275078 hardirqs last enabled at (275077): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (275077): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (275078): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (275070): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (275070): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (275070): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (275068): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (275068): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (275068): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2ad8b90 x25: ffff0000e2ad8bb8 x24: ffff800088a09b80 x23: ffff0000da680000 x22: 000000000000feeb x21: ffff0000da680068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 281162 hardirqs last enabled at (281161): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (281161): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (281162): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (281154): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (281154): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (281154): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (281152): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (281152): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (281152): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e28bdfa8 x25: ffff0000e28bdfd0 x24: ffff800088a09b80 x23: ffff0000d6770000 x22: 000000000000feeb x21: ffff0000d6770068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 286440 hardirqs last enabled at (286439): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (286439): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (286439): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (286440): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (286430): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (286430): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (286430): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (286428): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (286428): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (286428): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f0752798 x25: ffff0000f07527c0 x24: ffff800088a09b80 x23: ffff0000db02e000 x22: 000000000000feeb x21: ffff0000db02e068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000ff8 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 291514 hardirqs last enabled at (291513): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (291513): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (291514): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (291506): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (291506): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (291506): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (291504): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (291504): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (291504): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f0750238 x25: ffff0000f0750260 x24: ffff800088a09b80 x23: ffff0000dd012000 x22: 000000000000feeb x21: ffff0000dd012068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 296762 hardirqs last enabled at (296761): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (296761): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (296762): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (296754): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (296754): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (296754): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (296752): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (296752): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (296752): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2add650 x25: ffff0000e2add678 x24: ffff800088a09b80 x23: ffff0000cc1b0000 x22: 000000000000feeb x21: ffff0000cc1b0068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 302722 hardirqs last enabled at (302721): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (302721): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (302722): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (302714): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (302714): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (302714): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (302712): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (302712): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (302712): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e29430f0 x25: ffff0000e2943118 x24: ffff800088a09b80 x23: ffff0000d084e000 x22: 000000000000feeb x21: ffff0000d084e068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 308368 hardirqs last enabled at (308367): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (308367): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (308368): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (308360): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (308360): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (308360): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (308358): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (308358): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (308358): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f07594e8 x25: ffff0000f0759510 x24: ffff800088a09b80 x23: ffff0000c6682000 x22: 000000000000feeb x21: ffff0000c6682068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 000000000000110f x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 313772 hardirqs last enabled at (313771): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (313771): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (313772): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (313764): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (313764): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (313764): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (313762): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (313762): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (313762): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2940b90 x25: ffff0000e2940bb8 x24: ffff800088a09b80 x23: ffff0000c66a6000 x22: 000000000000feeb x21: ffff0000c66a6068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 319378 hardirqs last enabled at (319377): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (319377): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (319378): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (319370): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (319370): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (319370): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (319368): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (319368): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (319368): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2946900 x25: ffff0000e2946928 x24: ffff800088a09b80 x23: ffff0000cbd60000 x22: 000000000000feeb x21: ffff0000cbd60068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 00000000000011c2 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 325088 hardirqs last enabled at (325087): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (325087): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (325088): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (325080): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (325080): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (325080): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (325078): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (325078): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (325078): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f0755fa8 x25: ffff0000f0755fd0 x24: ffff800088a09b80 x23: ffff0000c6bd8000 x22: 000000000000feeb x21: ffff0000c6bd8068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 330222 hardirqs last enabled at (330221): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (330221): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (330221): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (330222): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (330212): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (330212): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (330212): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (330210): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (330210): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (330210): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2949e40 x25: ffff0000e2949e68 x24: ffff800088a09b80 x23: ffff0000c9c2c000 x22: 000000000000feeb x21: ffff0000c9c2c068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 335678 hardirqs last enabled at (335677): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (335677): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (335678): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (335670): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (335670): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (335670): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (335668): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (335668): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (335668): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2948238 x25: ffff0000e2948260 x24: ffff800088a09b80 x23: ffff0000d5f68000 x22: 000000000000feeb x21: ffff0000d5f68068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 341804 hardirqs last enabled at (341803): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (341803): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (341804): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (341796): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (341796): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (341796): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (341794): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (341794): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (341794): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2943a48 x25: ffff0000e2943a70 x24: ffff800088a09b80 x23: ffff0000d907a000 x22: 000000000000feeb x21: ffff0000d907a068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 348248 hardirqs last enabled at (348247): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (348247): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (348248): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (348240): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (348240): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (348240): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (348238): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (348238): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (348238): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f075d650 x25: ffff0000f075d678 x24: ffff800088a09b80 x23: ffff0000d1c52000 x22: 000000000000feeb x21: ffff0000d1c52068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 354420 hardirqs last enabled at (354419): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (354419): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (354420): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (354412): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (354412): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (354412): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (354410): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (354410): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (354410): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f075b0f0 x25: ffff0000f075b118 x24: ffff800088a09b80 x23: ffff0000c98bc000 x22: 000000000000feeb x21: ffff0000c98bc068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 360154 hardirqs last enabled at (360153): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (360153): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (360154): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (360146): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (360146): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (360146): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (360144): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (360144): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (360144): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e294f258 x25: ffff0000e294f280 x24: ffff800088a09b80 x23: ffff0000cc156000 x22: 000000000000feeb x21: ffff0000cc156068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 365886 hardirqs last enabled at (365885): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (365885): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (365885): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (365886): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (365876): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (365876): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (365876): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (365874): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (365874): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (365874): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): e 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f0766900 x25: ffff0000f0766928 x24: ffff800088a09b80 x23: ffff0000dd24c000 x22: 000000000000feeb x21: ffff0000dd24c068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 00000000ffffffff x17: ffff80008a17ec80 x16: ffff80008a4b80f8 x15: ffff800080ceb8b0 x14: ffff800080c62790 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : ffff800080ceb578 x5 : ffff0000cc8f2610 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 370788 hardirqs last enabled at (370787): [] kasan_quarantine_put+0xb4/0x1c4 mm/kasan/quarantine.c:234 hardirqs last disabled at (370788): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (370728): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (370728): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (370728): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (370726): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (370726): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (370726): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e294ccf8 x25: ffff0000e294cd20 x24: ffff800088a09b80 x23: ffff0000cd8b8000 x22: 000000000000feeb x21: ffff0000cd8b8068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 375862 hardirqs last enabled at (375861): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (375861): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (375862): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (375854): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (375854): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (375854): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (375852): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (375852): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (375852): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f07643a0 x25: ffff0000f07643c8 x24: ffff800088a09b80 x23: ffff0000caa30000 x22: 000000000000feeb x21: ffff0000caa30068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 381624 hardirqs last enabled at (381623): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (381623): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (381623): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (381624): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (381614): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (381614): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (381614): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (381612): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (381612): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (381612): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e294a798 x25: ffff0000e294a7c0 x24: ffff800088a09b80 x23: ffff0000d4070000 x22: 000000000000feeb x21: ffff0000d4070068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 388336 hardirqs last enabled at (388335): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (388335): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (388335): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (388336): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (388326): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (388326): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (388326): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (388324): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (388324): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (388324): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000dc905fa8 x25: ffff0000dc905fd0 x24: ffff800088a09b80 x23: ffff0000d3f92000 x22: 000000000000feeb x21: ffff0000d3f92068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 394178 hardirqs last enabled at (394177): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (394177): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (394178): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (394170): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (394170): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (394170): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (394168): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (394168): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (394168): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f0761e40 x25: ffff0000f0761e68 x24: ffff800088a09b80 x23: ffff0000d06dc000 x22: 000000000000feeb x21: ffff0000d06dc068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 399648 hardirqs last enabled at (399647): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (399647): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (399647): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (399648): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (399638): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (399638): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (399638): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (399636): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (399636): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (399636): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f076d650 x25: ffff0000f076d678 x24: ffff800088a09b80 x23: ffff0000cfdec000 x22: 000000000000feeb x21: ffff0000cfdec068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 0000000000000000 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 405744 hardirqs last enabled at (405743): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (405743): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (405744): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (405736): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (405736): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (405736): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (405734): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (405734): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (405734): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f076b0f0 x25: ffff0000f076b118 x24: ffff800088a09b80 x23: ffff0000c8916000 x22: 000000000000feeb x21: ffff0000c8916068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 411302 hardirqs last enabled at (411301): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (411301): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (411302): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (411294): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (411294): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (411294): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (411292): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (411292): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (411292): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000dc903a48 x25: ffff0000dc903a70 x24: ffff800088a09b80 x23: ffff0000d708c000 x22: 000000000000feeb x21: ffff0000d708c068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 416792 hardirqs last enabled at (416791): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (416791): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (416791): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (416792): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (416782): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (416782): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (416782): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (416780): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (416780): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (416780): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f0768b90 x25: ffff0000f0768bb8 x24: ffff800088a09b80 x23: ffff0000ddf82000 x22: 000000000000feeb x21: ffff0000ddf82068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 423038 hardirqs last enabled at (423037): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (423037): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (423037): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (423038): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (423028): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (423028): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (423028): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (423026): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (423026): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (423026): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2965fa8 x25: ffff0000e2965fd0 x24: ffff800088a09b80 x23: ffff0000d1bfc000 x22: 000000000000feeb x21: ffff0000d1bfc068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 429392 hardirqs last enabled at (429391): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (429391): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (429392): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (429384): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (429384): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (429384): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (429382): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (429382): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (429382): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f0785fa8 x25: ffff0000f0785fd0 x24: ffff800088a09b80 x23: ffff0000d1bae000 x22: 000000000000feeb x21: ffff0000d1bae068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 434610 hardirqs last enabled at (434609): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (434609): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (434610): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (434602): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (434602): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (434602): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (434600): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (434600): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (434600): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e29630f0 x25: ffff0000e2963118 x24: ffff800088a09b80 x23: ffff0000d08a4000 x22: 000000000000feeb x21: ffff0000d08a4068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 439998 hardirqs last enabled at (439997): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (439997): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (439998): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (439990): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (439990): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (439990): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (439988): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (439988): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (439988): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f0783a48 x25: ffff0000f0783a70 x24: ffff800088a09b80 x23: ffff0000cb8b2000 x22: 000000000000feeb x21: ffff0000cb8b2068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 445516 hardirqs last enabled at (445515): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (445515): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (445515): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (445516): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (445506): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (445506): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (445506): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (445504): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (445504): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (445504): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f07814e8 x25: ffff0000f0781510 x24: ffff800088a09b80 x23: ffff0000d8052000 x22: 000000000000feeb x21: ffff0000d8052068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 451934 hardirqs last enabled at (451933): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (451933): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (451933): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (451934): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (451924): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (451924): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (451924): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (451922): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (451922): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (451922): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f05ed650 x25: ffff0000f05ed678 x24: ffff800088a09b80 x23: ffff0000d383e000 x22: 000000000000feeb x21: ffff0000d383e068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fdf10c x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 457256 hardirqs last enabled at (457255): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (457255): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (457255): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (457256): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (457246): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (457246): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (457246): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (457244): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (457244): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (457244): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f05eb0f0 x25: ffff0000f05eb118 x24: ffff800088a09b80 x23: ffff0000cb478000 x22: 000000000000feeb x21: ffff0000cb478068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 463940 hardirqs last enabled at (463939): [] raw_spin_rq_unlock_irq+0x18/0x28 kernel/sched/sched.h:1644 hardirqs last disabled at (463940): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (463930): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (463930): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (463930): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (463928): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (463928): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (463928): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f05e8b90 x25: ffff0000f05e8bb8 x24: ffff800088a09b80 x23: ffff0000d426c000 x22: 000000000000feeb x21: ffff0000d426c068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 469750 hardirqs last enabled at (469749): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (469749): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (469750): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (469742): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (469742): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (469742): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (469740): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (469740): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (469740): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f07bccf8 x25: ffff0000f07bcd20 x24: ffff800088a09b80 x23: ffff0000d0924000 x22: 000000000000feeb x21: ffff0000d0924068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 474702 hardirqs last enabled at (474701): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (474701): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (474702): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (474694): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (474694): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (474694): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (474692): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (474692): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (474692): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f07ba798 x25: ffff0000f07ba7c0 x24: ffff800088a09b80 x23: ffff0000db334000 x22: 000000000000feeb x21: ffff0000db334068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 479628 hardirqs last enabled at (479627): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (479627): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (479628): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (479620): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (479620): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (479620): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (479618): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (479618): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (479618): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2960b90 x25: ffff0000e2960bb8 x24: ffff800088a09b80 x23: ffff0000d58ee000 x22: 000000000000feeb x21: ffff0000d58ee068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 486036 hardirqs last enabled at (486035): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (486035): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (486036): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (486028): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (486028): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (486028): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (486026): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (486026): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (486026): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f07bdfa8 x25: ffff0000f07bdfd0 x24: ffff800088a09b80 x23: ffff0000c312c000 x22: 000000000000feeb x21: ffff0000c312c068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 491530 hardirqs last enabled at (491529): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (491529): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (491529): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (491530): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (491520): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (491520): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (491520): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (491518): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (491518): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (491518): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f07b8238 x25: ffff0000f07b8260 x24: ffff800088a09b80 x23: ffff0000d92de000 x22: 000000000000feeb x21: ffff0000d92de068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 0000000000000000 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 497234 hardirqs last enabled at (497233): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (497233): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (497234): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (497226): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (497226): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (497226): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (497224): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (497224): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (497224): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2b31e40 x25: ffff0000e2b31e68 x24: ffff800088a09b80 x23: ffff0000dd608000 x22: 000000000000feeb x21: ffff0000dd608068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 502308 hardirqs last enabled at (502307): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (502307): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (502308): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (502300): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (502300): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (502300): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (502298): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (502298): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (502298): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e285c3a0 x25: ffff0000e285c3c8 x24: ffff800088a09b80 x23: ffff0000cc02a000 x22: 000000000000feeb x21: ffff0000cc02a068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 507538 hardirqs last enabled at (507537): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (507537): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (507538): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (507530): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (507530): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (507530): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (507528): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (507528): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (507528): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f0679e40 x25: ffff0000f0679e68 x24: ffff800088a09b80 x23: ffff0000d69b8000 x22: 000000000000feeb x21: ffff0000d69b8068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 512652 hardirqs last enabled at (512651): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (512651): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (512651): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (512652): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (512642): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (512642): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (512642): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (512640): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (512640): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (512640): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2b343a0 x25: ffff0000e2b343c8 x24: ffff800088a09b80 x23: ffff0000d3342000 x22: 000000000000feeb x21: ffff0000d3342068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 517662 hardirqs last enabled at (517661): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (517661): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (517662): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (517654): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (517654): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (517654): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (517652): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (517652): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (517652): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2b30238 x25: ffff0000e2b30260 x24: ffff800088a09b80 x23: ffff0000dde54000 x22: 000000000000feeb x21: ffff0000dde54068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 523326 hardirqs last enabled at (523325): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (523325): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (523326): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (523318): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (523318): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (523318): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (523316): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (523316): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (523316): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e285f258 x25: ffff0000e285f280 x24: ffff800088a09b80 x23: ffff0000dde8c000 x22: 000000000000feeb x21: ffff0000dde8c068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 0000000000000000 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 529024 hardirqs last enabled at (529023): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (529023): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (529024): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (529016): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (529016): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (529016): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (529014): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (529014): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (529014): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e285d650 x25: ffff0000e285d678 x24: ffff800088a09b80 x23: ffff0000c9b9c000 x22: 000000000000feeb x21: ffff0000c9b9c068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 533926 hardirqs last enabled at (533925): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (533925): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (533925): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (533926): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (533916): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (533916): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (533916): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (533914): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (533914): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (533914): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e285dfa8 x25: ffff0000e285dfd0 x24: ffff800088a09b80 x23: ffff0000d5fc4000 x22: 000000000000feeb x21: ffff0000d5fc4068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 539520 hardirqs last enabled at (539519): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (539519): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (539520): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (539512): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (539512): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (539512): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (539510): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (539510): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (539510): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e29f2798 x25: ffff0000e29f27c0 x24: ffff800088a09b80 x23: ffff0000cc5f0000 x22: 000000000000feeb x21: ffff0000cc5f0068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 545064 hardirqs last enabled at (545063): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (545063): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (545064): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (545056): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (545056): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (545056): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (545054): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (545054): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (545054): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e29f0238 x25: ffff0000e29f0260 x24: ffff800088a09b80 x23: ffff0000d8bc4000 x22: 000000000000feeb x21: ffff0000d8bc4068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 550708 hardirqs last enabled at (550707): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (550707): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (550708): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (550700): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (550700): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (550700): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (550698): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (550698): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (550698): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000dc93b0f0 x25: ffff0000dc93b118 x24: ffff800088a09b80 x23: ffff0000d8fba000 x22: 000000000000feeb x21: ffff0000d8fba068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 556524 hardirqs last enabled at (556523): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (556523): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (556524): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (556516): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (556516): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (556516): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (556514): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (556514): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (556514): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e29f43a0 x25: ffff0000e29f43c8 x24: ffff800088a09b80 x23: ffff0000ce502000 x22: 000000000000feeb x21: ffff0000ce502068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 561546 hardirqs last enabled at (561545): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (561545): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (561546): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (561538): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (561538): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (561538): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (561536): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (561536): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (561536): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2bdccf8 x25: ffff0000e2bdcd20 x24: ffff800088a09b80 x23: ffff0000d83ee000 x22: 000000000000feeb x21: ffff0000d83ee068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 566654 hardirqs last enabled at (566653): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (566653): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (566654): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (566646): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (566646): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (566646): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (566644): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (566644): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (566644): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2bda798 x25: ffff0000e2bda7c0 x24: ffff800088a09b80 x23: ffff0000ee254000 x22: 000000000000feeb x21: ffff0000ee254068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 571804 hardirqs last enabled at (571803): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (571803): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (571803): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (571804): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (571794): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (571794): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (571794): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (571792): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (571792): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (571792): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e29f7258 x25: ffff0000e29f7280 x24: ffff800088a09b80 x23: ffff0000ddc36000 x22: 000000000000feeb x21: ffff0000ddc36068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 576938 hardirqs last enabled at (576937): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (576937): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (576938): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (576930): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (576930): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (576930): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (576928): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (576928): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (576928): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e297e900 x25: ffff0000e297e928 x24: ffff800088a09b80 x23: ffff0000da0c4000 x22: 000000000000feeb x21: ffff0000da0c4068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 581988 hardirqs last enabled at (581987): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (581987): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (581987): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (581988): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (581978): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (581978): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (581978): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (581976): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (581976): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (581976): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2bd8b90 x25: ffff0000e2bd8bb8 x24: ffff800088a09b80 x23: ffff0000d72aa000 x22: 000000000000feeb x21: ffff0000d72aa068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 587480 hardirqs last enabled at (587479): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (587479): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (587480): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (587472): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (587472): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (587472): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (587470): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (587470): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (587470): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f067dfa8 x25: ffff0000f067dfd0 x24: ffff800088a09b80 x23: ffff0000da38e000 x22: 000000000000feeb x21: ffff0000da38e068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 592784 hardirqs last enabled at (592783): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (592783): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (592784): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (592776): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (592776): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (592776): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (592774): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (592774): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (592774): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2b37258 x25: ffff0000e2b37280 x24: ffff800088a09b80 x23: ffff0000c1d20000 x22: 000000000000feeb x21: ffff0000c1d20068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 597666 hardirqs last enabled at (597665): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (597665): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (597665): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (597666): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (597656): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (597656): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (597656): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (597654): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (597654): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (597654): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000ed854cf8 x25: ffff0000ed854d20 x24: ffff800088a09b80 x23: ffff0000dbf42000 x22: 000000000000feeb x21: ffff0000dbf42068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 0000000000000000 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 602568 hardirqs last enabled at (602567): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (602567): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (602568): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (602560): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (602560): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (602560): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (602558): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (602558): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (602558): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e28ba798 x25: ffff0000e28ba7c0 x24: ffff800088a09b80 x23: ffff0000c53f4000 x22: 000000000000feeb x21: ffff0000c53f4068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 607746 hardirqs last enabled at (607745): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (607745): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (607746): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (607738): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (607738): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (607738): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (607736): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (607736): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (607736): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000ed853a48 x25: ffff0000ed853a70 x24: ffff800088a09b80 x23: ffff0000ce75e000 x22: 000000000000feeb x21: ffff0000ce75e068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 612836 hardirqs last enabled at (612835): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (612835): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (612835): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (612836): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (612826): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (612826): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (612826): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (612824): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (612824): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (612824): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e28b8238 x25: ffff0000e28b8260 x24: ffff800088a09b80 x23: ffff0000ce6f0000 x22: 000000000000feeb x21: ffff0000ce6f0068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 617916 hardirqs last enabled at (617915): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (617915): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (617915): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (617916): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (617906): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (617906): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (617906): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (617904): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (617904): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (617904): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000ed8514e8 x25: ffff0000ed851510 x24: ffff800088a09b80 x23: ffff0000c64be000 x22: 000000000000feeb x21: ffff0000c64be068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 622916 hardirqs last enabled at (622915): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (622915): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (622915): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (622916): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (622906): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (622906): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (622906): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (622904): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (622904): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (622904): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2adc3a0 x25: ffff0000e2adc3c8 x24: ffff800088a09b80 x23: ffff0000c77b6000 x22: 000000000000feeb x21: ffff0000c77b6068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: ffff0001a5fba10c x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 628578 hardirqs last enabled at (628577): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (628577): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (628577): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (628578): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (628568): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (628568): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (628568): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (628566): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (628566): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (628566): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (dev 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f0753a48 x25: ffff0000f0753a70 x24: ffff800088a09b80 x23: ffff0000c7602000 x22: 000000000000feeb x21: ffff0000c7602068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: ffff80008897b000 x16: ffff800088a2dc20 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 633766 hardirqs last enabled at (633765): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (633765): [] finish_lock_switch kernel/sched/core.c:5125 [inline] hardirqs last enabled at (633765): [] finish_task_switch+0x22c/0x768 kernel/sched/core.c:5243 hardirqs last disabled at (633766): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (633756): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (633756): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (633756): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (633754): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (633754): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (633754): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2ad9e40 x25: ffff0000e2ad9e68 x24: ffff800088a09b80 x23: ffff0000dc3ec000 x22: 000000000000feeb x21: ffff0000dc3ec068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 639398 hardirqs last enabled at (639397): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (639397): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (639398): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (639390): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (639390): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (639390): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (639388): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (639388): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (639388): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#0: syz-executor/5229 Modules linked in: CPU: 0 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000f07514e8 x25: ffff0000f0751510 x24: ffff800088a09b80 x23: ffff0000c9f22000 x22: 000000000000feeb x21: ffff0000c9f22068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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: 645144 hardirqs last enabled at (645143): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (645143): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (645144): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (645136): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (645136): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (645136): [] kernel_neon_begin+0x294/0x3fc arch/arm64/kernel/fpsimd.c:1936 softirqs last disabled at (645134): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (645134): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (645134): [] kernel_neon_begin+0x11c/0x3fc arch/arm64/kernel/fpsimd.c:1895 ---[ 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/5229 WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8 fs/ext4/xattr.c:1600, CPU#1: syz-executor/5229 Modules linked in: CPU: 1 UID: 0 PID: 5229 Comm: syz-executor 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 : ffff800094877060 x29: ffff8000948771a0 x28: 000000003bc0c61b x27: 0000000000000001 x26: ffff0000e2adf258 x25: ffff0000e2adf280 x24: ffff800088a09b80 x23: ffff0000ca4be000 x22: 000000000000feeb x21: ffff0000ca4be068 x20: ffff70001290ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 909e896302ba0f00 x8 : 00000000000000f8 x7 : ffff80008047db60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000804887a0 x2 : 0000000100000000 x1 : ffff0000da030000 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