Warning: Permanently added '10.128.1.66' (ED25519) to the list of known hosts. 1970/01/01 00:00:48 ignoring optional flag "type"="gce" 1970/01/01 00:00:48 parsed 1 programs [ 48.868111][ T4930] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SS 1970/01/01 00:00:48 executed programs: 0 [ 48.885164][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 48.885500][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 48.885654][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 48.885953][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 48.886288][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 49.019921][ T4936] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.021547][ T4936] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.021830][ T4936] bridge_slave_0: entered allmulticast mode [ 49.022285][ T4936] bridge_slave_0: entered promiscuous mode [ 49.023335][ T4936] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.023374][ T4936] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.023417][ T4936] bridge_slave_1: entered allmulticast mode [ 49.023809][ T4936] bridge_slave_1: entered promiscuous mode [ 49.035422][ T4936] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 49.036785][ T4936] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 49.043803][ T4936] team0: Port device team_slave_0 added [ 49.044589][ T4936] team0: Port device team_slave_1 added [ 49.051880][ T4936] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 49.051900][ T4936] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 49.051915][ T4936] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 49.052443][ T4936] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 49.052449][ T4936] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 49.052465][ T4936] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 49.071323][ T4936] hsr_slave_0: entered promiscuous mode [ 49.071621][ T4936] hsr_slave_1: entered promiscuous mode [ 49.394332][ T4936] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 49.396624][ T4936] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 49.398643][ T4936] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 49.402875][ T4936] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 49.404730][ T4936] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 49.407855][ T4936] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 49.409808][ T4936] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 49.411847][ T4936] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 49.420955][ T4936] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.420995][ T4936] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.421078][ T4936] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.421110][ T4936] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.442958][ T4936] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.449040][ T1457] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.453428][ T1457] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.457364][ T4936] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.462754][ T3182] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.462793][ T3182] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.467093][ T3182] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.467149][ T3182] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.478583][ T4936] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 49.478623][ T4936] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 49.573709][ T4936] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 49.585258][ T4936] veth0_vlan: entered promiscuous mode [ 49.588356][ T4936] veth1_vlan: entered promiscuous mode [ 49.598351][ T4936] veth0_macvtap: entered promiscuous mode [ 49.600010][ T4936] veth1_macvtap: entered promiscuous mode [ 49.605937][ T4936] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 49.608853][ T4936] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 49.617611][ T850] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.617658][ T850] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.617675][ T850] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.617692][ T850] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.652371][ T5034] loop0: detected capacity change from 0 to 1024 [ 49.667640][ T5034] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 4 ** replaying previous printk message ** [ 49.681009][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 49.681130][ T4936] ------------[ cut here ]------------ [ 49.681134][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 49.686185][ T4936] Modules linked in: [ 49.686863][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Not tainted syzkaller #0 PREEMPT [ 49.688322][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 49.689874][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 49.691196][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 49.692268][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 49.693376][ T4936] sp : ffff80009b2f7060 [ 49.694067][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 49.695403][ T4936] x26: ffff0000dd14ccf8 x25: ffff0000dd14cd20 x24: ffff800088a09bc0 [ 49.696763][ T4936] x23: ffff0000dc15c000 x22: 0000000000000381 x21: ffff0000dc15c068 [ 49.698057][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 00000000ffffffff [ 49.699329][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 49.700661][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 49.701945][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 49.703266][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 49.704602][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 49.705955][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 49.707221][ T4936] Call trace: [ 49.707730][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 49.708823][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 49.709702][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 49.710622][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 49.711539][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 49.712489][ T4936] ext4_dirty_inode+0xd4/0x104 [ 49.713329][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 49.714231][ T4936] sync_lazytime+0x1a8/0x68c [ 49.715014][ T4936] iput+0x1cc/0xb90 [ 49.715642][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 49.716480][ T4936] __dentry_kill+0x170/0x5fc [ 49.717245][ T4936] shrink_kill+0xe8/0x318 [ 49.717992][ T4936] shrink_dentry_list+0x154/0x2a4 [ 49.718859][ T4936] shrink_dcache_tree+0x40c/0x570 [ 49.719712][ T4936] do_one_tree+0x24/0x58 [ 49.720431][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 49.721327][ T4936] generic_shutdown_super+0x70/0x2b8 [ 49.722191][ T4936] kill_block_super+0x44/0x90 [ 49.722974][ T4936] ext4_kill_sb+0x68/0xa4 [ 49.723700][ T4936] deactivate_locked_super+0xc4/0x140 [ 49.724599][ T4936] deactivate_super+0xd8/0xf8 [ 49.725377][ T4936] cleanup_mnt+0x328/0x3b8 [ 49.726138][ T4936] __cleanup_mnt+0x20/0x30 [ 49.726917][ T4936] task_work_run+0x1c4/0x254 [ 49.727666][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 49.728599][ T4936] el0_svc+0x18c/0x260 [ 49.729274][ T4936] el0t_64_sync_handler+0x48/0x148 [ 49.730104][ T4936] el0t_64_sync+0x198/0x19c [ 49.730896][ T4936] irq event stamp: 142164 [ 49.731607][ T4936] hardirqs last enabled at (142163): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 49.733363][ T4936] hardirqs last disabled at (142164): [] el1_brk64+0x20/0x54 [ 49.734919][ T4936] softirqs last enabled at (142088): [] do_sve_acc+0x32c/0x4b8 [ 49.736401][ T4936] softirqs last disabled at (142086): [] do_sve_acc+0x10c/0x4b8 [ 49.737924][ T4936] ---[ end trace 0000000000000000 ]--- [ 49.740922][ T4936] EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2860: Unable to expand inode 14. Delete some EAs or run e2fsck. [ 49.743765][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 49.775485][ T5050] loop0: detected capacity change from 0 to 1024 [ 49.809035][ T5050] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 49.814478][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 49.816914][ T4936] ------------[ cut here ]------------ [ 49.816922][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 49.819783][ T4936] Modules linked in: [ 49.820436][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 49.822253][ T4936] Tainted: [W]=WARN [ 49.822910][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 49.824674][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 49.825961][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 49.827020][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 49.828034][ T4936] sp : ffff80009b2f7060 [ 49.828688][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 49.829940][ T4936] x26: ffff0000d3177258 x25: ffff0000d3177280 x24: ffff800088a09bc0 [ 49.831216][ T4936] x23: ffff0000cedb6000 x22: 0000000000000381 x21: ffff0000cedb6068 [ 49.832484][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 49.833759][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 49.835028][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 49.836286][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 49.837602][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 49.839029][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 49.840344][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 49.841697][ T4936] Call trace: [ 49.842281][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 49.843374][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 49.844314][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 49.845309][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 49.846259][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 49.847258][ T4936] ext4_dirty_inode+0xd4/0x104 [ 49.848104][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 49.848981][ T4936] sync_lazytime+0x1a8/0x68c [ 49.849753][ T4936] iput+0x1cc/0xb90 [ 49.850398][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 49.851293][ T4936] __dentry_kill+0x170/0x5fc [ 49.852090][ T4936] shrink_kill+0xe8/0x318 [ 49.852851][ T4936] shrink_dentry_list+0x154/0x2a4 [ 49.853734][ T4936] shrink_dcache_tree+0x40c/0x570 [ 49.854530][ T4936] do_one_tree+0x24/0x58 [ 49.855275][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 49.856227][ T4936] generic_shutdown_super+0x70/0x2b8 [ 49.857137][ T4936] kill_block_super+0x44/0x90 [ 49.857937][ T4936] ext4_kill_sb+0x68/0xa4 [ 49.858680][ T4936] deactivate_locked_super+0xc4/0x140 [ 49.859567][ T4936] deactivate_super+0xd8/0xf8 [ 49.860324][ T4936] cleanup_mnt+0x328/0x3b8 [ 49.861033][ T4936] __cleanup_mnt+0x20/0x30 [ 49.861767][ T4936] task_work_run+0x1c4/0x254 [ 49.862557][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 49.863507][ T4936] el0_svc+0x18c/0x260 [ 49.864190][ T4936] el0t_64_sync_handler+0x48/0x148 [ 49.865111][ T4936] el0t_64_sync+0x198/0x19c [ 49.865889][ T4936] irq event stamp: 149582 [ 49.866650][ T4936] hardirqs last enabled at (149581): [] finish_task_switch+0x22c/0x768 [ 49.868388][ T4936] hardirqs last disabled at (149582): [] el1_brk64+0x20/0x54 [ 49.869912][ T4936] softirqs last enabled at (149514): [] do_sve_acc+0x32c/0x4b8 [ 49.871449][ T4936] softirqs last disabled at (149512): [] do_sve_acc+0x10c/0x4b8 [ 49.873076][ T4936] ---[ end trace 0000000000000000 ]--- [ 49.879081][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 49.906299][ T5072] loop0: detected capacity change from 0 to 1024 [ 49.932084][ T5072] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 49.944832][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 49.947103][ T4936] ------------[ cut here ]------------ [ 49.947110][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 49.949939][ T4936] Modules linked in: [ 49.950610][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 49.952520][ T4936] Tainted: [W]=WARN [ 49.953224][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 49.954908][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 49.956269][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 49.957363][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 49.958501][ T4936] sp : ffff80009b2f7060 [ 49.959178][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 49.960494][ T4936] x26: ffff0000e3258b90 x25: ffff0000e3258bb8 x24: ffff800088a09bc0 [ 49.961870][ T4936] x23: ffff0000cef4c000 x22: 0000000000000381 x21: ffff0000cef4c068 [ 49.963205][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 49.964508][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 49.965832][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 49.967148][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 49.968562][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 49.969960][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 49.971291][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 49.972619][ T4936] Call trace: [ 49.973144][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 49.974272][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 49.975190][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 49.976195][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 49.977147][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 49.978031][ T4936] ext4_dirty_inode+0xd4/0x104 [ 49.978861][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 49.979708][ T4936] sync_lazytime+0x1a8/0x68c [ 49.980482][ T4936] iput+0x1cc/0xb90 [ 49.981121][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 49.981999][ T4936] __dentry_kill+0x170/0x5fc [ 49.982754][ T4936] shrink_kill+0xe8/0x318 [ 49.983497][ T4936] shrink_dentry_list+0x154/0x2a4 [ 49.984342][ T4936] shrink_dcache_tree+0x40c/0x570 [ 49.985182][ T4936] do_one_tree+0x24/0x58 [ 49.985909][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 49.986827][ T4936] generic_shutdown_super+0x70/0x2b8 [ 49.987716][ T4936] kill_block_super+0x44/0x90 [ 49.988529][ T4936] ext4_kill_sb+0x68/0xa4 [ 49.989275][ T4936] deactivate_locked_super+0xc4/0x140 [ 49.990218][ T4936] deactivate_super+0xd8/0xf8 [ 49.990985][ T4936] cleanup_mnt+0x328/0x3b8 [ 49.991727][ T4936] __cleanup_mnt+0x20/0x30 [ 49.992485][ T4936] task_work_run+0x1c4/0x254 [ 49.993247][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 49.994096][ T4936] el0_svc+0x18c/0x260 [ 49.994771][ T4936] el0t_64_sync_handler+0x48/0x148 [ 49.995638][ T4936] el0t_64_sync+0x198/0x19c [ 49.996424][ T4936] irq event stamp: 156422 [ 49.997152][ T4936] hardirqs last enabled at (156421): [] finish_task_switch+0x22c/0x768 [ 49.998842][ T4936] hardirqs last disabled at (156422): [] el1_brk64+0x20/0x54 [ 50.000348][ T4936] softirqs last enabled at (156352): [] do_sve_acc+0x32c/0x4b8 [ 50.001969][ T4936] softirqs last disabled at (156350): [] do_sve_acc+0x10c/0x4b8 [ 50.003537][ T4936] ---[ end trace 0000000000000000 ]--- [ 50.006623][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 50.039429][ T5090] loop0: detected capacity change from 0 to 1024 [ 50.065593][ T5090] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 5 ** replaying previous printk message ** [ 50.072887][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 50.073001][ T4936] ------------[ cut here ]------------ [ 50.073006][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 50.078492][ T4936] Modules linked in: [ 50.079105][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 50.080889][ T4936] Tainted: [W]=WARN [ 50.081513][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 50.083179][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 50.084492][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 50.085609][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 50.086768][ T4936] sp : ffff80009b2f7060 [ 50.087488][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 50.088763][ T4936] x26: ffff0000e325f258 x25: ffff0000e325f280 x24: ffff800088a09bc0 [ 50.090060][ T4936] x23: ffff0000d8768000 x22: 0000000000000381 x21: ffff0000d8768068 [ 50.091325][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 50.092589][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 50.093924][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 50.095253][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 50.096684][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 50.098013][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 50.099309][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 50.100572][ T4936] Call trace: [ 50.101094][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 50.102161][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 50.103104][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 50.104185][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 50.105146][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 50.106120][ T4936] ext4_dirty_inode+0xd4/0x104 [ 50.106984][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 50.107839][ T4936] sync_lazytime+0x1a8/0x68c [ 50.108621][ T4936] iput+0x1cc/0xb90 [ 50.109274][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 50.110176][ T4936] __dentry_kill+0x170/0x5fc [ 50.110958][ T4936] shrink_kill+0xe8/0x318 [ 50.111741][ T4936] shrink_dentry_list+0x154/0x2a4 [ 50.112603][ T4936] shrink_dcache_tree+0x40c/0x570 [ 50.113462][ T4936] do_one_tree+0x24/0x58 [ 50.114173][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 50.115143][ T4936] generic_shutdown_super+0x70/0x2b8 [ 50.116059][ T4936] kill_block_super+0x44/0x90 [ 50.116803][ T4936] ext4_kill_sb+0x68/0xa4 [ 50.117535][ T4936] deactivate_locked_super+0xc4/0x140 [ 50.118376][ T4936] deactivate_super+0xd8/0xf8 [ 50.119120][ T4936] cleanup_mnt+0x328/0x3b8 [ 50.119838][ T4936] __cleanup_mnt+0x20/0x30 [ 50.120570][ T4936] task_work_run+0x1c4/0x254 [ 50.121332][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 50.122279][ T4936] el0_svc+0x18c/0x260 [ 50.122945][ T4936] el0t_64_sync_handler+0x48/0x148 [ 50.123768][ T4936] el0t_64_sync+0x198/0x19c [ 50.124544][ T4936] irq event stamp: 162602 [ 50.125248][ T4936] hardirqs last enabled at (162601): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 50.126968][ T4936] hardirqs last disabled at (162602): [] el1_brk64+0x20/0x54 [ 50.128431][ T4936] softirqs last enabled at (162534): [] do_sve_acc+0x32c/0x4b8 [ 50.129928][ T4936] softirqs last disabled at (162532): [] do_sve_acc+0x10c/0x4b8 [ 50.131409][ T4936] ---[ end trace 0000000000000000 ]--- [ 50.136887][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 50.176067][ T5106] loop0: detected capacity change from 0 to 1024 [ 50.193597][ T5106] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 5 ** replaying previous printk message ** [ 50.201617][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 50.201734][ T4936] ------------[ cut here ]------------ [ 50.201739][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 50.207186][ T4936] Modules linked in: [ 50.207842][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 50.209655][ T4936] Tainted: [W]=WARN [ 50.210322][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 50.212017][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 50.213420][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 50.214536][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 50.215633][ T4936] sp : ffff80009b2f7060 [ 50.216345][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 50.217616][ T4936] x26: ffff0000e31b5650 x25: ffff0000e31b5678 x24: ffff800088a09bc0 [ 50.218946][ T4936] x23: ffff0000d22a4000 x22: 0000000000000381 x21: ffff0000d22a4068 [ 50.220251][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 0000000000000000 [ 50.221534][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 50.222806][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 50.224005][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 50.225331][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 50.226759][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 50.228147][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 50.229518][ T4936] Call trace: [ 50.230099][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 50.231210][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 50.232148][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 50.233135][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 50.234116][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 50.235088][ T4936] ext4_dirty_inode+0xd4/0x104 [ 50.235939][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 50.236829][ T4936] sync_lazytime+0x1a8/0x68c [ 50.237651][ T4936] iput+0x1cc/0xb90 [ 50.238329][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 50.239226][ T4936] __dentry_kill+0x170/0x5fc [ 50.240023][ T4936] shrink_kill+0xe8/0x318 [ 50.240794][ T4936] shrink_dentry_list+0x154/0x2a4 [ 50.241683][ T4936] shrink_dcache_tree+0x40c/0x570 [ 50.242557][ T4936] do_one_tree+0x24/0x58 [ 50.243276][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 50.244134][ T4936] generic_shutdown_super+0x70/0x2b8 [ 50.244929][ T4936] kill_block_super+0x44/0x90 [ 50.245692][ T4936] ext4_kill_sb+0x68/0xa4 [ 50.246455][ T4936] deactivate_locked_super+0xc4/0x140 [ 50.247318][ T4936] deactivate_super+0xd8/0xf8 [ 50.248096][ T4936] cleanup_mnt+0x328/0x3b8 [ 50.248839][ T4936] __cleanup_mnt+0x20/0x30 [ 50.249611][ T4936] task_work_run+0x1c4/0x254 [ 50.250423][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 50.251389][ T4936] el0_svc+0x18c/0x260 [ 50.252086][ T4936] el0t_64_sync_handler+0x48/0x148 [ 50.252996][ T4936] el0t_64_sync+0x198/0x19c [ 50.253765][ T4936] irq event stamp: 169980 [ 50.254526][ T4936] hardirqs last enabled at (169979): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 50.256371][ T4936] hardirqs last disabled at (169980): [] el1_brk64+0x20/0x54 [ 50.257904][ T4936] softirqs last enabled at (169912): [] do_sve_acc+0x32c/0x4b8 [ 50.259488][ T4936] softirqs last disabled at (169910): [] do_sve_acc+0x10c/0x4b8 [ 50.260991][ T4936] ---[ end trace 0000000000000000 ]--- [ 50.267614][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 50.295399][ T5124] loop0: detected capacity change from 0 to 1024 [ 50.320744][ T5124] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 50 ** replaying previous printk message ** [ 50.333279][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 50.333402][ T4936] ------------[ cut here ]------------ [ 50.333407][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 50.338548][ T4936] Modules linked in: [ 50.339226][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 50.341075][ T4936] Tainted: [W]=WARN [ 50.341737][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 50.343518][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 50.344915][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 50.346060][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 50.347124][ T4936] sp : ffff80009b2f7060 [ 50.347808][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 50.349120][ T4936] x26: ffff0000e325b0f0 x25: ffff0000e325b118 x24: ffff800088a09bc0 [ 50.350481][ T4936] x23: ffff0000d0f10000 x22: 0000000000000381 x21: ffff0000d0f10068 [ 50.351757][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 0000000000000000 [ 50.352996][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 50.354248][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 50.355504][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 50.356791][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 50.358115][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 50.359402][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 50.360784][ T4936] Call trace: [ 50.361323][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 50.362452][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 50.363369][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 50.364346][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 50.365332][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 50.366270][ T4936] ext4_dirty_inode+0xd4/0x104 [ 50.367111][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 50.367989][ T4936] sync_lazytime+0x1a8/0x68c [ 50.368811][ T4936] iput+0x1cc/0xb90 [ 50.369493][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 50.370364][ T4936] __dentry_kill+0x170/0x5fc [ 50.371083][ T4936] shrink_kill+0xe8/0x318 [ 50.371821][ T4936] shrink_dentry_list+0x154/0x2a4 [ 50.372696][ T4936] shrink_dcache_tree+0x40c/0x570 [ 50.373537][ T4936] do_one_tree+0x24/0x58 [ 50.374290][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 50.375180][ T4936] generic_shutdown_super+0x70/0x2b8 [ 50.376063][ T4936] kill_block_super+0x44/0x90 [ 50.376892][ T4936] ext4_kill_sb+0x68/0xa4 [ 50.377628][ T4936] deactivate_locked_super+0xc4/0x140 [ 50.378521][ T4936] deactivate_super+0xd8/0xf8 [ 50.379301][ T4936] cleanup_mnt+0x328/0x3b8 [ 50.380067][ T4936] __cleanup_mnt+0x20/0x30 [ 50.380822][ T4936] task_work_run+0x1c4/0x254 [ 50.381636][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 50.382546][ T4936] el0_svc+0x18c/0x260 [ 50.383243][ T4936] el0t_64_sync_handler+0x48/0x148 [ 50.384085][ T4936] el0t_64_sync+0x198/0x19c [ 50.384871][ T4936] irq event stamp: 176846 [ 50.385598][ T4936] hardirqs last enabled at (176845): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 50.387354][ T4936] hardirqs last disabled at (176846): [] el1_brk64+0x20/0x54 [ 50.388818][ T4936] softirqs last enabled at (176774): [] do_sve_acc+0x32c/0x4b8 [ 50.390436][ T4936] softirqs last disabled at (176772): [] do_sve_acc+0x10c/0x4b8 [ 50.392002][ T4936] ---[ end trace 0000000000000000 ]--- [ 50.395816][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 50.435620][ T5141] loop0: detected capacity change from 0 to 1024 [ 50.451399][ T5141] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 50.455 ** replaying previous printk message ** [ 50.455794][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 50.456170][ T4936] ------------[ cut here ]------------ [ 50.456175][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 50.461449][ T4936] Modules linked in: [ 50.462085][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 50.463894][ T4936] Tainted: [W]=WARN [ 50.464495][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 50.466071][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 50.467283][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 50.468330][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 50.469388][ T4936] sp : ffff80009b2f7060 [ 50.470043][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 50.471414][ T4936] x26: ffff0000e31bb0f0 x25: ffff0000e31bb118 x24: ffff800088a09bc0 [ 50.472680][ T4936] x23: ffff0000dc1f8000 x22: 0000000000000381 x21: ffff0000dc1f8068 [ 50.473917][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 50.475170][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 [ 50.476522][ T4936] x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 [ 50.477880][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 50.479221][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 50.480546][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 50.481877][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 50.483165][ T4936] Call trace: [ 50.483725][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 50.484844][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 50.485754][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 50.486687][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 50.487612][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 50.488483][ T4936] ext4_dirty_inode+0xd4/0x104 [ 50.489288][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 50.490159][ T4936] sync_lazytime+0x1a8/0x68c [ 50.490941][ T4936] iput+0x1cc/0xb90 [ 50.491597][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 50.492522][ T4936] __dentry_kill+0x170/0x5fc [ 50.493248][ T4936] shrink_kill+0xe8/0x318 [ 50.493949][ T4936] shrink_dentry_list+0x154/0x2a4 [ 50.494743][ T4936] shrink_dcache_tree+0x40c/0x570 [ 50.495548][ T4936] do_one_tree+0x24/0x58 [ 50.496236][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 50.497098][ T4936] generic_shutdown_super+0x70/0x2b8 [ 50.497943][ T4936] kill_block_super+0x44/0x90 [ 50.498708][ T4936] ext4_kill_sb+0x68/0xa4 [ 50.499453][ T4936] deactivate_locked_super+0xc4/0x140 [ 50.500342][ T4936] deactivate_super+0xd8/0xf8 [ 50.501132][ T4936] cleanup_mnt+0x328/0x3b8 [ 50.501904][ T4936] __cleanup_mnt+0x20/0x30 [ 50.502658][ T4936] task_work_run+0x1c4/0x254 [ 50.503389][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 50.504365][ T4936] el0_svc+0x18c/0x260 [ 50.504987][ T4936] el0t_64_sync_handler+0x48/0x148 [ 50.505771][ T4936] el0t_64_sync+0x198/0x19c [ 50.506476][ T4936] irq event stamp: 183306 [ 50.507145][ T4936] hardirqs last enabled at (183305): [] finish_task_switch+0x22c/0x768 [ 50.508722][ T4936] hardirqs last disabled at (183306): [] el1_brk64+0x20/0x54 [ 50.510158][ T4936] softirqs last enabled at (183236): [] do_sve_acc+0x32c/0x4b8 [ 50.511677][ T4936] softirqs last disabled at (183234): [] do_sve_acc+0x10c/0x4b8 [ 50.513162][ T4936] ---[ end trace 0000000000000000 ]--- [ 50.521671][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 50.550323][ T5155] loop0: detected capacity change from 0 to 1024 [ 50.561444][ T5155] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 50.576102][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 50.579473][ T4936] ------------[ cut here ]------------ [ 50.579486][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 50.582323][ T4936] Modules linked in: [ 50.583004][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 50.584722][ T4936] Tainted: [W]=WARN [ 50.585399][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 50.587135][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 50.588401][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 50.589500][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 50.590553][ T4936] sp : ffff80009b2f7060 [ 50.591229][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 50.592576][ T4936] x26: ffff0000e326a798 x25: ffff0000e326a7c0 x24: ffff800088a09bc0 [ 50.593946][ T4936] x23: ffff0000d4758000 x22: 0000000000000381 x21: ffff0000d4758068 [ 50.595340][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 50.596671][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 [ 50.598022][ T4936] x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 [ 50.599308][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 50.600587][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 50.601824][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 50.603143][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 50.604458][ T4936] Call trace: [ 50.605006][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 50.606117][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 50.607014][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 50.608011][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 50.608996][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 50.609874][ T4936] ext4_dirty_inode+0xd4/0x104 [ 50.610693][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 50.611513][ T4936] sync_lazytime+0x1a8/0x68c [ 50.612246][ T4936] iput+0x1cc/0xb90 [ 50.612890][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 50.613730][ T4936] __dentry_kill+0x170/0x5fc [ 50.614464][ T4936] shrink_kill+0xe8/0x318 [ 50.615167][ T4936] shrink_dentry_list+0x154/0x2a4 [ 50.615964][ T4936] shrink_dcache_tree+0x40c/0x570 [ 50.616735][ T4936] do_one_tree+0x24/0x58 [ 50.617447][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 50.618364][ T4936] generic_shutdown_super+0x70/0x2b8 [ 50.619231][ T4936] kill_block_super+0x44/0x90 [ 50.620017][ T4936] ext4_kill_sb+0x68/0xa4 [ 50.620758][ T4936] deactivate_locked_super+0xc4/0x140 [ 50.621673][ T4936] deactivate_super+0xd8/0xf8 [ 50.622452][ T4936] cleanup_mnt+0x328/0x3b8 [ 50.623173][ T4936] __cleanup_mnt+0x20/0x30 [ 50.623877][ T4936] task_work_run+0x1c4/0x254 [ 50.624601][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 50.625524][ T4936] el0_svc+0x18c/0x260 [ 50.626236][ T4936] el0t_64_sync_handler+0x48/0x148 [ 50.627096][ T4936] el0t_64_sync+0x198/0x19c [ 50.627821][ T4936] irq event stamp: 189106 [ 50.628497][ T4936] hardirqs last enabled at (189105): [] finish_task_switch+0x22c/0x768 [ 50.630092][ T4936] hardirqs last disabled at (189106): [] el1_brk64+0x20/0x54 [ 50.631546][ T4936] softirqs last enabled at (189036): [] do_sve_acc+0x32c/0x4b8 [ 50.633112][ T4936] softirqs last disabled at (189034): [] do_sve_acc+0x10c/0x4b8 [ 50.634673][ T4936] ---[ end trace 0000000000000000 ]--- [ 50.644145][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 50.671354][ T5172] loop0: detected capacity change from 0 to 1024 [ 50.691023][ T5172] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 50.694023][ ** replaying previous printk message ** [ 50.694023][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 50.694262][ T4936] ------------[ cut here ]------------ [ 50.694268][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 50.699759][ T4936] Modules linked in: [ 50.700394][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 50.702288][ T4936] Tainted: [W]=WARN [ 50.702951][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 50.704619][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 50.705967][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 50.707106][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 50.708242][ T4936] sp : ffff80009b2f7060 [ 50.708923][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 50.710318][ T4936] x26: ffff0000e3272798 x25: ffff0000e32727c0 x24: ffff800088a09bc0 [ 50.711639][ T4936] x23: ffff0000d47ba000 x22: 0000000000000381 x21: ffff0000d47ba068 [ 50.712945][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 50.714317][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 [ 50.715690][ T4936] x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 [ 50.717059][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 50.718393][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 50.719838][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 50.721160][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 50.722514][ T4936] Call trace: [ 50.723099][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 50.724255][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 50.725190][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 50.726187][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 50.727161][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 50.728150][ T4936] ext4_dirty_inode+0xd4/0x104 [ 50.728951][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 50.729809][ T4936] sync_lazytime+0x1a8/0x68c [ 50.730615][ T4936] iput+0x1cc/0xb90 [ 50.731290][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 50.732224][ T4936] __dentry_kill+0x170/0x5fc [ 50.732998][ T4936] shrink_kill+0xe8/0x318 [ 50.733742][ T4936] shrink_dentry_list+0x154/0x2a4 [ 50.734582][ T4936] shrink_dcache_tree+0x40c/0x570 [ 50.735453][ T4936] do_one_tree+0x24/0x58 [ 50.736186][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 50.737100][ T4936] generic_shutdown_super+0x70/0x2b8 [ 50.738011][ T4936] kill_block_super+0x44/0x90 [ 50.738827][ T4936] ext4_kill_sb+0x68/0xa4 [ 50.739602][ T4936] deactivate_locked_super+0xc4/0x140 [ 50.740546][ T4936] deactivate_super+0xd8/0xf8 [ 50.741368][ T4936] cleanup_mnt+0x328/0x3b8 [ 50.742107][ T4936] __cleanup_mnt+0x20/0x30 [ 50.742843][ T4936] task_work_run+0x1c4/0x254 [ 50.743647][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 50.744555][ T4936] el0_svc+0x18c/0x260 [ 50.745248][ T4936] el0t_64_sync_handler+0x48/0x148 [ 50.746149][ T4936] el0t_64_sync+0x198/0x19c [ 50.746941][ T4936] irq event stamp: 195228 [ 50.747701][ T4936] hardirqs last enabled at (195227): [] finish_task_switch+0x22c/0x768 [ 50.749409][ T4936] hardirqs last disabled at (195228): [] el1_brk64+0x20/0x54 [ 50.750892][ T4936] softirqs last enabled at (195154): [] do_sve_acc+0x32c/0x4b8 [ 50.752494][ T4936] softirqs last disabled at (195152): [] do_sve_acc+0x10c/0x4b8 [ 50.754074][ T4936] ---[ end trace 0000000000000000 ]--- [ 50.759399][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 50.776360][ T5180] loop0: detected capacity change from 0 to 1024 [ 50.782861][ T5180] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 50.788739][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 50.790887][ T4936] ------------[ cut here ]------------ [ 50.790893][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 50.793566][ T4936] Modules linked in: [ 50.794226][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 50.796014][ T4936] Tainted: [W]=WARN [ 50.796643][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 50.798291][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 50.799542][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 50.800623][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 50.801747][ T4936] sp : ffff80009b2f7060 [ 50.802473][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 50.803802][ T4936] x26: ffff0000dd134cf8 x25: ffff0000dd134d20 x24: ffff800088a09bc0 [ 50.805141][ T4936] x23: ffff0000d53b2000 x22: 0000000000000381 x21: ffff0000d53b2068 [ 50.806451][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 50.807766][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 50.809130][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 50.810504][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 50.811888][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 50.813218][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 50.814558][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 50.815887][ T4936] Call trace: [ 50.816440][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 50.817464][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 50.818303][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 50.819288][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 50.820225][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 50.821147][ T4936] ext4_dirty_inode+0xd4/0x104 [ 50.821935][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 50.822784][ T4936] sync_lazytime+0x1a8/0x68c [ 50.823562][ T4936] iput+0x1cc/0xb90 [ 50.824158][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 50.825055][ T4936] __dentry_kill+0x170/0x5fc [ 50.825864][ T4936] shrink_kill+0xe8/0x318 [ 50.826648][ T4936] shrink_dentry_list+0x154/0x2a4 [ 50.827525][ T4936] shrink_dcache_tree+0x40c/0x570 [ 50.828347][ T4936] do_one_tree+0x24/0x58 [ 50.829085][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 50.830043][ T4936] generic_shutdown_super+0x70/0x2b8 [ 50.830925][ T4936] kill_block_super+0x44/0x90 [ 50.831727][ T4936] ext4_kill_sb+0x68/0xa4 [ 50.832495][ T4936] deactivate_locked_super+0xc4/0x140 [ 50.833415][ T4936] deactivate_super+0xd8/0xf8 [ 50.834259][ T4936] cleanup_mnt+0x328/0x3b8 [ 50.835016][ T4936] __cleanup_mnt+0x20/0x30 [ 50.835768][ T4936] task_work_run+0x1c4/0x254 [ 50.836560][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 50.837502][ T4936] el0_svc+0x18c/0x260 [ 50.838215][ T4936] el0t_64_sync_handler+0x48/0x148 [ 50.839088][ T4936] el0t_64_sync+0x198/0x19c [ 50.839814][ T4936] irq event stamp: 200584 [ 50.840541][ T4936] hardirqs last enabled at (200583): [] finish_task_switch+0x22c/0x768 [ 50.842181][ T4936] hardirqs last disabled at (200584): [] el1_brk64+0x20/0x54 [ 50.843633][ T4936] softirqs last enabled at (200506): [] do_sve_acc+0x32c/0x4b8 [ 50.845224][ T4936] softirqs last disabled at (200504): [] do_sve_acc+0x10c/0x4b8 [ 50.846840][ T4936] ---[ end trace 0000000000000000 ]--- [ 50.853670][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 50.871043][ T5184] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 50.876147][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 50.876257][ T4936] ------------[ cut here ]------------ [ 50.876263][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 50.880859][ T4936] Modules linked in: [ 50.881562][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 50.883419][ T4936] Tainted: [W]=WARN [ 50.884060][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 50.885807][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 50.887190][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 50.888256][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 50.889380][ T4936] sp : ffff80009b2f7060 [ 50.890091][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 50.891489][ T4936] x26: ffff0000e327d650 x25: ffff0000e327d678 x24: ffff800088a09bc0 [ 50.892794][ T4936] x23: ffff0000dc71a000 x22: 0000000000000381 x21: ffff0000dc71a068 [ 50.894183][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 50.895541][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 50.896881][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 50.898176][ T4936] x11: 0000000000000965 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 50.899572][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 50.900906][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 50.902279][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 50.903707][ T4936] Call trace: [ 50.904295][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 50.905421][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 50.906316][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 50.907324][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 50.908313][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 50.909276][ T4936] ext4_dirty_inode+0xd4/0x104 [ 50.910081][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 50.911018][ T4936] sync_lazytime+0x1a8/0x68c [ 50.911807][ T4936] iput+0x1cc/0xb90 [ 50.912475][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 50.913395][ T4936] __dentry_kill+0x170/0x5fc [ 50.914210][ T4936] shrink_kill+0xe8/0x318 [ 50.914980][ T4936] shrink_dentry_list+0x154/0x2a4 [ 50.915872][ T4936] shrink_dcache_tree+0x40c/0x570 [ 50.916787][ T4936] do_one_tree+0x24/0x58 [ 50.917507][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 50.918478][ T4936] generic_shutdown_super+0x70/0x2b8 [ 50.919394][ T4936] kill_block_super+0x44/0x90 [ 50.920170][ T4936] ext4_kill_sb+0x68/0xa4 [ 50.920926][ T4936] deactivate_locked_super+0xc4/0x140 [ 50.921867][ T4936] deactivate_super+0xd8/0xf8 [ 50.922599][ T4936] cleanup_mnt+0x328/0x3b8 [ 50.923331][ T4936] __cleanup_mnt+0x20/0x30 [ 50.924053][ T4936] task_work_run+0x1c4/0x254 [ 50.924878][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 50.925862][ T4936] el0_svc+0x18c/0x260 [ 50.926589][ T4936] el0t_64_sync_handler+0x48/0x148 [ 50.927492][ T4936] el0t_64_sync+0x198/0x19c [ 50.928297][ T4936] irq event stamp: 206116 [ 50.929070][ T4936] hardirqs last enabled at (206115): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 50.930146][ T4727] Bluetooth: hci0: command tx timeout [ 50.931756][ T4936] hardirqs last disabled at (206116): [] el1_brk64+0x20/0x54 [ 50.933164][ T4936] softirqs last enabled at (206046): [] do_sve_acc+0x32c/0x4b8 [ 50.934730][ T4936] softirqs last disabled at (206044): [] do_sve_acc+0x10c/0x4b8 [ 50.936194][ T4936] ---[ end trace 0000000000000000 ]--- [ 50.943562][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 50.981786][ T5188] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 50.989401][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 50.991651][ T4936] ------------[ cut here ]------------ [ 50.991661][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 50.994367][ T4936] Modules linked in: [ 50.995036][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 50.996790][ T4936] Tainted: [W]=WARN [ 50.997426][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 50.999016][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 51.000275][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 51.001433][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 51.002538][ T4936] sp : ffff80009b2f7060 [ 51.003253][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 51.004622][ T4936] x26: ffff0000dd15ba48 x25: ffff0000dd15ba70 x24: ffff800088a09bc0 [ 51.006016][ T4936] x23: ffff0000d4756000 x22: 0000000000000381 x21: ffff0000d4756068 [ 51.007297][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 51.008655][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 51.010036][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 51.011321][ T4936] x11: 00000000000009ca x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 51.012691][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 51.013994][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 51.015329][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 51.016657][ T4936] Call trace: [ 51.017200][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 51.018265][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 51.019126][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 51.020141][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 51.021116][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 51.022024][ T4936] ext4_dirty_inode+0xd4/0x104 [ 51.022791][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 51.023604][ T4936] sync_lazytime+0x1a8/0x68c [ 51.024401][ T4936] iput+0x1cc/0xb90 [ 51.025020][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 51.025832][ T4936] __dentry_kill+0x170/0x5fc [ 51.026555][ T4936] shrink_kill+0xe8/0x318 [ 51.027265][ T4936] shrink_dentry_list+0x154/0x2a4 [ 51.028094][ T4936] shrink_dcache_tree+0x40c/0x570 [ 51.028886][ T4936] do_one_tree+0x24/0x58 [ 51.029543][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 51.030452][ T4936] generic_shutdown_super+0x70/0x2b8 [ 51.031375][ T4936] kill_block_super+0x44/0x90 [ 51.032147][ T4936] ext4_kill_sb+0x68/0xa4 [ 51.032847][ T4936] deactivate_locked_super+0xc4/0x140 [ 51.033752][ T4936] deactivate_super+0xd8/0xf8 [ 51.034490][ T4936] cleanup_mnt+0x328/0x3b8 [ 51.035200][ T4936] __cleanup_mnt+0x20/0x30 [ 51.035916][ T4936] task_work_run+0x1c4/0x254 [ 51.036701][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 51.037626][ T4936] el0_svc+0x18c/0x260 [ 51.038328][ T4936] el0t_64_sync_handler+0x48/0x148 [ 51.039182][ T4936] el0t_64_sync+0x198/0x19c [ 51.039947][ T4936] irq event stamp: 212002 [ 51.040650][ T4936] hardirqs last enabled at (212001): [] finish_task_switch+0x22c/0x768 [ 51.042318][ T4936] hardirqs last disabled at (212002): [] el1_brk64+0x20/0x54 [ 51.043833][ T4936] softirqs last enabled at (211924): [] do_sve_acc+0x32c/0x4b8 [ 51.045406][ T4936] softirqs last disabled at (211922): [] do_sve_acc+0x10c/0x4b8 [ 51.046951][ T4936] ---[ end trace 0000000000000000 ]--- [ 51.052597][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 51.071802][ T5192] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 51.077237][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 51.077348][ T4936] ------------[ cut here ]------------ [ 51.077354][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 51.081798][ T4936] Modules linked in: [ 51.082462][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 51.084250][ T4936] Tainted: [W]=WARN [ 51.084886][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.086588][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 51.087939][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 51.088977][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 51.090101][ T4936] sp : ffff80009b2f7060 [ 51.090779][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 51.092139][ T4936] x26: ffff0000dd1594e8 x25: ffff0000dd159510 x24: ffff800088a09bc0 [ 51.093524][ T4936] x23: ffff0000dc7ce000 x22: 0000000000000381 x21: ffff0000dc7ce068 [ 51.094861][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 51.096251][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 51.097595][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 51.098879][ T4936] x11: 0000000000000a2c x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 51.100204][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 51.101502][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 51.102738][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 51.104113][ T4936] Call trace: [ 51.104634][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 51.105777][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 51.106675][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 51.107633][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 51.108517][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 51.109387][ T4936] ext4_dirty_inode+0xd4/0x104 [ 51.110122][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 51.110964][ T4936] sync_lazytime+0x1a8/0x68c [ 51.111745][ T4936] iput+0x1cc/0xb90 [ 51.112426][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 51.113316][ T4936] __dentry_kill+0x170/0x5fc [ 51.114078][ T4936] shrink_kill+0xe8/0x318 [ 51.114801][ T4936] shrink_dentry_list+0x154/0x2a4 [ 51.115616][ T4936] shrink_dcache_tree+0x40c/0x570 [ 51.116462][ T4936] do_one_tree+0x24/0x58 [ 51.117184][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 51.118106][ T4936] generic_shutdown_super+0x70/0x2b8 [ 51.118986][ T4936] kill_block_super+0x44/0x90 [ 51.119797][ T4936] ext4_kill_sb+0x68/0xa4 [ 51.120552][ T4936] deactivate_locked_super+0xc4/0x140 [ 51.121481][ T4936] deactivate_super+0xd8/0xf8 [ 51.122292][ T4936] cleanup_mnt+0x328/0x3b8 [ 51.123015][ T4936] __cleanup_mnt+0x20/0x30 [ 51.123728][ T4936] task_work_run+0x1c4/0x254 [ 51.124464][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 51.125344][ T4936] el0_svc+0x18c/0x260 [ 51.126062][ T4936] el0t_64_sync_handler+0x48/0x148 [ 51.126947][ T4936] el0t_64_sync+0x198/0x19c [ 51.127707][ T4936] irq event stamp: 217762 [ 51.128426][ T4936] hardirqs last enabled at (217761): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 51.130150][ T4936] hardirqs last disabled at (217762): [] el1_brk64+0x20/0x54 [ 51.131674][ T4936] softirqs last enabled at (217696): [] do_sve_acc+0x32c/0x4b8 [ 51.133188][ T4936] softirqs last disabled at (217694): [] do_sve_acc+0x10c/0x4b8 [ 51.134687][ T4936] ---[ end trace 0000000000000000 ]--- [ 51.138084][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 51.181382][ T5196] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ ** replaying previous printk message ** [ 51.187580][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 51.187691][ T4936] ------------[ cut here ]------------ [ 51.187696][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 51.193020][ T4936] Modules linked in: [ 51.193694][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 51.195434][ T4936] Tainted: [W]=WARN [ 51.196077][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.197739][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 51.199081][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 51.200181][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 51.201273][ T4936] sp : ffff80009b2f7060 [ 51.201990][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 51.203314][ T4936] x26: ffff0000e3280b90 x25: ffff0000e3280bb8 x24: ffff800088a09bc0 [ 51.204634][ T4936] x23: ffff0000dc882000 x22: 0000000000000381 x21: ffff0000dc882068 [ 51.205968][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 51.207226][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 51.208478][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 51.209787][ T4936] x11: 0000000000000a8a x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 51.211147][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 51.212542][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 51.213962][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 51.215336][ T4936] Call trace: [ 51.215890][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 51.217010][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 51.217950][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 51.218969][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 51.219930][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 51.220863][ T4936] ext4_dirty_inode+0xd4/0x104 [ 51.221673][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 51.222560][ T4936] sync_lazytime+0x1a8/0x68c [ 51.223371][ T4936] iput+0x1cc/0xb90 [ 51.224017][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 51.224855][ T4936] __dentry_kill+0x170/0x5fc [ 51.225661][ T4936] shrink_kill+0xe8/0x318 [ 51.226384][ T4936] shrink_dentry_list+0x154/0x2a4 [ 51.227245][ T4936] shrink_dcache_tree+0x40c/0x570 [ 51.228089][ T4936] do_one_tree+0x24/0x58 [ 51.228785][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 51.229692][ T4936] generic_shutdown_super+0x70/0x2b8 [ 51.230587][ T4936] kill_block_super+0x44/0x90 [ 51.231385][ T4936] ext4_kill_sb+0x68/0xa4 [ 51.232125][ T4936] deactivate_locked_super+0xc4/0x140 [ 51.232994][ T4936] deactivate_super+0xd8/0xf8 [ 51.233794][ T4936] cleanup_mnt+0x328/0x3b8 [ 51.234565][ T4936] __cleanup_mnt+0x20/0x30 [ 51.235230][ T4936] task_work_run+0x1c4/0x254 [ 51.235951][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 51.236783][ T4936] el0_svc+0x18c/0x260 [ 51.237467][ T4936] el0t_64_sync_handler+0x48/0x148 [ 51.238330][ T4936] el0t_64_sync+0x198/0x19c [ 51.239067][ T4936] irq event stamp: 223286 [ 51.239799][ T4936] hardirqs last enabled at (223285): [] raw_spin_rq_unlock_irq+0x18/0x28 [ 51.241504][ T4936] hardirqs last disabled at (223286): [] el1_brk64+0x20/0x54 [ 51.242993][ T4936] softirqs last enabled at (223216): [] do_sve_acc+0x32c/0x4b8 [ 51.244549][ T4936] softirqs last disabled at (223214): [] do_sve_acc+0x10c/0x4b8 [ 51.246186][ T4936] ---[ end trace 0000000000000000 ]--- [ 51.251428][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 51.270748][ T5200] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 51.274599][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 51.276720][ T4936] ------------[ cut here ]------------ [ 51.276728][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 51.279682][ T4936] Modules linked in: [ 51.280331][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 51.282206][ T4936] Tainted: [W]=WARN [ 51.282823][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.284535][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 51.285924][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 51.287077][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 51.288239][ T4936] sp : ffff80009b2f7060 [ 51.289008][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 51.290402][ T4936] x26: ffff0000e3072798 x25: ffff0000e30727c0 x24: ffff800088a09bc0 [ 51.291726][ T4936] x23: ffff0000d69be000 x22: 0000000000000381 x21: ffff0000d69be068 [ 51.293094][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 51.294500][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 51.295923][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 51.297240][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 51.298738][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 51.300161][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 51.301610][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 51.302963][ T4936] Call trace: [ 51.303496][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 51.304712][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 51.305637][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 51.306675][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 51.307654][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 51.308606][ T4936] ext4_dirty_inode+0xd4/0x104 [ 51.309457][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 51.310308][ T4936] sync_lazytime+0x1a8/0x68c [ 51.311071][ T4936] iput+0x1cc/0xb90 [ 51.311773][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 51.312650][ T4936] __dentry_kill+0x170/0x5fc [ 51.313416][ T4936] shrink_kill+0xe8/0x318 [ 51.314130][ T4936] shrink_dentry_list+0x154/0x2a4 [ 51.315017][ T4936] shrink_dcache_tree+0x40c/0x570 [ 51.315928][ T4936] do_one_tree+0x24/0x58 [ 51.316627][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 51.317574][ T4936] generic_shutdown_super+0x70/0x2b8 [ 51.318513][ T4936] kill_block_super+0x44/0x90 [ 51.319347][ T4936] ext4_kill_sb+0x68/0xa4 [ 51.320116][ T4936] deactivate_locked_super+0xc4/0x140 [ 51.321037][ T4936] deactivate_super+0xd8/0xf8 [ 51.321851][ T4936] cleanup_mnt+0x328/0x3b8 [ 51.322632][ T4936] __cleanup_mnt+0x20/0x30 [ 51.323364][ T4936] task_work_run+0x1c4/0x254 [ 51.324125][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 51.324984][ T4936] el0_svc+0x18c/0x260 [ 51.325713][ T4936] el0t_64_sync_handler+0x48/0x148 [ 51.326619][ T4936] el0t_64_sync+0x198/0x19c [ 51.327413][ T4936] irq event stamp: 228592 [ 51.328175][ T4936] hardirqs last enabled at (228591): [] finish_task_switch+0x22c/0x768 [ 51.329863][ T4936] hardirqs last disabled at (228592): [] el1_brk64+0x20/0x54 [ 51.331456][ T4936] softirqs last enabled at (228518): [] do_sve_acc+0x32c/0x4b8 [ 51.333039][ T4936] softirqs last disabled at (228516): [] do_sve_acc+0x10c/0x4b8 [ 51.334642][ T4936] ---[ end trace 0000000000000000 ]--- [ 51.340650][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 51.372160][ T5204] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 51.380648][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 51.384107][ T4936] ------------[ cut here ]------------ [ 51.384118][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 51.386803][ T4936] Modules linked in: [ 51.387455][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 51.389101][ T4936] Tainted: [W]=WARN [ 51.389754][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.391442][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 51.392781][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 51.393914][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 51.395005][ T4936] sp : ffff80009b2f7060 [ 51.395698][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 51.397058][ T4936] x26: ffff0000e3000238 x25: ffff0000e3000260 x24: ffff800088a09bc0 [ 51.398412][ T4936] x23: ffff0000d6d72000 x22: 0000000000000381 x21: ffff0000d6d72068 [ 51.399857][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 0000000000000000 [ 51.401221][ T4936] x17: 0000000000000000 x16: ffff0000d4db2eb4 x15: 0000000000000000 [ 51.402613][ T4936] x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 [ 51.403897][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 51.405210][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 51.406511][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 51.407822][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 51.409187][ T4936] Call trace: [ 51.409720][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 51.410804][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 51.411726][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 51.412679][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 51.413648][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 51.414527][ T4936] ext4_dirty_inode+0xd4/0x104 [ 51.415293][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 51.416206][ T4936] sync_lazytime+0x1a8/0x68c [ 51.417000][ T4936] iput+0x1cc/0xb90 [ 51.417639][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 51.418492][ T4936] __dentry_kill+0x170/0x5fc [ 51.419267][ T4936] shrink_kill+0xe8/0x318 [ 51.419959][ T4936] shrink_dentry_list+0x154/0x2a4 [ 51.420772][ T4936] shrink_dcache_tree+0x40c/0x570 [ 51.421615][ T4936] do_one_tree+0x24/0x58 [ 51.422290][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 51.423210][ T4936] generic_shutdown_super+0x70/0x2b8 [ 51.424096][ T4936] kill_block_super+0x44/0x90 [ 51.424893][ T4936] ext4_kill_sb+0x68/0xa4 [ 51.425584][ T4936] deactivate_locked_super+0xc4/0x140 [ 51.426505][ T4936] deactivate_super+0xd8/0xf8 [ 51.427276][ T4936] cleanup_mnt+0x328/0x3b8 [ 51.428011][ T4936] __cleanup_mnt+0x20/0x30 [ 51.428724][ T4936] task_work_run+0x1c4/0x254 [ 51.429450][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 51.430360][ T4936] el0_svc+0x18c/0x260 [ 51.431037][ T4936] el0t_64_sync_handler+0x48/0x148 [ 51.431903][ T4936] el0t_64_sync+0x198/0x19c [ 51.432662][ T4936] irq event stamp: 234234 [ 51.433346][ T4936] hardirqs last enabled at (234233): [] finish_task_switch+0x22c/0x768 [ 51.434894][ T4936] hardirqs last disabled at (234234): [] el1_brk64+0x20/0x54 [ 51.436398][ T4936] softirqs last enabled at (234154): [] do_sve_acc+0x32c/0x4b8 [ 51.438017][ T4936] softirqs last disabled at (234152): [] do_sve_acc+0x10c/0x4b8 [ 51.439578][ T4936] ---[ end trace 0000000000000000 ]--- [ 51.443207][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 51.481396][ T5208] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 51.485868][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 51.487832][ T4936] ------------[ cut here ]------------ [ 51.487840][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 51.490666][ T4936] Modules linked in: [ 51.491308][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 51.493101][ T4936] Tainted: [W]=WARN [ 51.493699][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.495303][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 51.496671][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 51.497725][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 51.498822][ T4936] sp : ffff80009b2f7060 [ 51.499546][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 51.500881][ T4936] x26: ffff0000e3075650 x25: ffff0000e3075678 x24: ffff800088a09bc0 [ 51.502168][ T4936] x23: ffff0000d6fb4000 x22: 0000000000000381 x21: ffff0000d6fb4068 [ 51.503533][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 51.504871][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c [ 51.506170][ T4936] x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 [ 51.507418][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 51.508682][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 51.510000][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 51.511373][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 51.512814][ T4936] Call trace: [ 51.513375][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 51.514469][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 51.515370][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 51.516416][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 51.517399][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 51.518389][ T4936] ext4_dirty_inode+0xd4/0x104 [ 51.519201][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 51.520040][ T4936] sync_lazytime+0x1a8/0x68c [ 51.520840][ T4936] iput+0x1cc/0xb90 [ 51.521463][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 51.522301][ T4936] __dentry_kill+0x170/0x5fc [ 51.523086][ T4936] shrink_kill+0xe8/0x318 [ 51.523783][ T4936] shrink_dentry_list+0x154/0x2a4 [ 51.524545][ T4936] shrink_dcache_tree+0x40c/0x570 [ 51.525364][ T4936] do_one_tree+0x24/0x58 [ 51.526018][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 51.526809][ T4936] generic_shutdown_super+0x70/0x2b8 [ 51.527711][ T4936] kill_block_super+0x44/0x90 [ 51.528504][ T4936] ext4_kill_sb+0x68/0xa4 [ 51.529283][ T4936] deactivate_locked_super+0xc4/0x140 [ 51.530212][ T4936] deactivate_super+0xd8/0xf8 [ 51.531058][ T4936] cleanup_mnt+0x328/0x3b8 [ 51.531819][ T4936] __cleanup_mnt+0x20/0x30 [ 51.532585][ T4936] task_work_run+0x1c4/0x254 [ 51.533340][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 51.534213][ T4936] el0_svc+0x18c/0x260 [ 51.534896][ T4936] el0t_64_sync_handler+0x48/0x148 [ 51.535723][ T4936] el0t_64_sync+0x198/0x19c [ 51.536448][ T4936] irq event stamp: 240152 [ 51.537154][ T4936] hardirqs last enabled at (240151): [] finish_task_switch+0x22c/0x768 [ 51.538789][ T4936] hardirqs last disabled at (240152): [] el1_brk64+0x20/0x54 [ 51.540285][ T4936] softirqs last enabled at (240074): [] do_sve_acc+0x32c/0x4b8 [ 51.541762][ T4936] softirqs last disabled at (240072): [] do_sve_acc+0x10c/0x4b8 [ 51.543270][ T4936] ---[ end trace 0000000000000000 ]--- [ 51.547587][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 51.572580][ T5212] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 51 ** replaying previous printk message ** [ 51.586070][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 51.586181][ T4936] ------------[ cut here ]------------ [ 51.586185][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 51.591507][ T4936] Modules linked in: [ 51.592171][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 51.593922][ T4936] Tainted: [W]=WARN [ 51.594551][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.596249][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 51.597559][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 51.598671][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 51.599801][ T4936] sp : ffff80009b2f7060 [ 51.600518][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 51.601815][ T4936] x26: ffff0000d3170b90 x25: ffff0000d3170bb8 x24: ffff800088a09bc0 [ 51.603189][ T4936] x23: ffff0000d72a0000 x22: 0000000000000381 x21: ffff0000d72a0068 [ 51.604600][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 51.605973][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 51.607320][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 51.608708][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 51.610121][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 51.611439][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 51.612694][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 51.614013][ T4936] Call trace: [ 51.614535][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 51.615643][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 51.616535][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 51.617619][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 51.618590][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 51.619527][ T4936] ext4_dirty_inode+0xd4/0x104 [ 51.620376][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 51.621264][ T4936] sync_lazytime+0x1a8/0x68c [ 51.622005][ T4936] iput+0x1cc/0xb90 [ 51.622607][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 51.623480][ T4936] __dentry_kill+0x170/0x5fc [ 51.624273][ T4936] shrink_kill+0xe8/0x318 [ 51.625007][ T4936] shrink_dentry_list+0x154/0x2a4 [ 51.625902][ T4936] shrink_dcache_tree+0x40c/0x570 [ 51.626824][ T4936] do_one_tree+0x24/0x58 [ 51.627563][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 51.628566][ T4936] generic_shutdown_super+0x70/0x2b8 [ 51.629387][ T4936] kill_block_super+0x44/0x90 [ 51.630194][ T4936] ext4_kill_sb+0x68/0xa4 [ 51.630957][ T4936] deactivate_locked_super+0xc4/0x140 [ 51.631922][ T4936] deactivate_super+0xd8/0xf8 [ 51.632688][ T4936] cleanup_mnt+0x328/0x3b8 [ 51.633394][ T4936] __cleanup_mnt+0x20/0x30 [ 51.634125][ T4936] task_work_run+0x1c4/0x254 [ 51.634918][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 51.635831][ T4936] el0_svc+0x18c/0x260 [ 51.636516][ T4936] el0t_64_sync_handler+0x48/0x148 [ 51.637408][ T4936] el0t_64_sync+0x198/0x19c [ 51.638202][ T4936] irq event stamp: 245686 [ 51.638900][ T4936] hardirqs last enabled at (245685): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 51.640634][ T4936] hardirqs last disabled at (245686): [] el1_brk64+0x20/0x54 [ 51.642227][ T4936] softirqs last enabled at (245616): [] do_sve_acc+0x32c/0x4b8 [ 51.643825][ T4936] softirqs last disabled at (245614): [] do_sve_acc+0x10c/0x4b8 [ 51.645298][ T4936] ---[ end trace 0000000000000000 ]--- [ 51.649109][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 51.700443][ T5216] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 51.705971][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 51.708057][ T4936] ------------[ cut here ]------------ [ 51.708064][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 51.710912][ T4936] Modules linked in: [ 51.711564][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 51.713425][ T4936] Tainted: [W]=WARN [ 51.714023][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.715755][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 51.717051][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 51.718132][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 51.719244][ T4936] sp : ffff80009b2f7060 [ 51.719937][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 51.721309][ T4936] x26: ffff0000e3082798 x25: ffff0000e30827c0 x24: ffff800088a09bc0 [ 51.722688][ T4936] x23: ffff0000de116000 x22: 0000000000000381 x21: ffff0000de116068 [ 51.724064][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 51.725378][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c [ 51.726582][ T4936] x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 [ 51.727963][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 51.729379][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 51.730795][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 51.732229][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 51.733642][ T4936] Call trace: [ 51.734174][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 51.735269][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 51.736198][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 51.737130][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 51.738073][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 51.739004][ T4936] ext4_dirty_inode+0xd4/0x104 [ 51.739765][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 51.740620][ T4936] sync_lazytime+0x1a8/0x68c [ 51.741435][ T4936] iput+0x1cc/0xb90 [ 51.742055][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 51.742915][ T4936] __dentry_kill+0x170/0x5fc [ 51.743726][ T4936] shrink_kill+0xe8/0x318 [ 51.744469][ T4936] shrink_dentry_list+0x154/0x2a4 [ 51.745335][ T4936] shrink_dcache_tree+0x40c/0x570 [ 51.746214][ T4936] do_one_tree+0x24/0x58 [ 51.746960][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 51.747887][ T4936] generic_shutdown_super+0x70/0x2b8 [ 51.748777][ T4936] kill_block_super+0x44/0x90 [ 51.749565][ T4936] ext4_kill_sb+0x68/0xa4 [ 51.750360][ T4936] deactivate_locked_super+0xc4/0x140 [ 51.751273][ T4936] deactivate_super+0xd8/0xf8 [ 51.752099][ T4936] cleanup_mnt+0x328/0x3b8 [ 51.752873][ T4936] __cleanup_mnt+0x20/0x30 [ 51.753596][ T4936] task_work_run+0x1c4/0x254 [ 51.754350][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 51.755238][ T4936] el0_svc+0x18c/0x260 [ 51.755902][ T4936] el0t_64_sync_handler+0x48/0x148 [ 51.756752][ T4936] el0t_64_sync+0x198/0x19c [ 51.757482][ T4936] irq event stamp: 252052 [ 51.758207][ T4936] hardirqs last enabled at (252051): [] finish_task_switch+0x22c/0x768 [ 51.759853][ T4936] hardirqs last disabled at (252052): [] el1_brk64+0x20/0x54 [ 51.761414][ T4936] softirqs last enabled at (251976): [] do_sve_acc+0x32c/0x4b8 [ 51.762970][ T4936] softirqs last disabled at (251974): [] do_sve_acc+0x10c/0x4b8 [ 51.764593][ T4936] ---[ end trace 0000000000000000 ]--- [ 51.767320][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 51.791076][ T5220] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 51.7 ** replaying previous printk message ** [ 51.795852][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 51.795975][ T4936] ------------[ cut here ]------------ [ 51.795979][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 51.801307][ T4936] Modules linked in: [ 51.801970][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 51.803686][ T4936] Tainted: [W]=WARN [ 51.804322][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.805989][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 51.807319][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 51.808494][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 51.809569][ T4936] sp : ffff80009b2f7060 [ 51.810270][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 51.811642][ T4936] x26: ffff0000dd16e900 x25: ffff0000dd16e928 x24: ffff800088a09bc0 [ 51.813012][ T4936] x23: ffff0000de242000 x22: 0000000000000381 x21: ffff0000de242068 [ 51.814316][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 51.815645][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 51.816969][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 51.818294][ T4936] x11: 0000000000000ba5 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 51.819614][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 51.820991][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 51.822359][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 51.823744][ T4936] Call trace: [ 51.824267][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 51.825359][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 51.826263][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 51.827217][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 51.828194][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 51.829148][ T4936] ext4_dirty_inode+0xd4/0x104 [ 51.829978][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 51.830856][ T4936] sync_lazytime+0x1a8/0x68c [ 51.831626][ T4936] iput+0x1cc/0xb90 [ 51.832217][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 51.833086][ T4936] __dentry_kill+0x170/0x5fc [ 51.833886][ T4936] shrink_kill+0xe8/0x318 [ 51.834626][ T4936] shrink_dentry_list+0x154/0x2a4 [ 51.835433][ T4936] shrink_dcache_tree+0x40c/0x570 [ 51.836271][ T4936] do_one_tree+0x24/0x58 [ 51.836986][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 51.837917][ T4936] generic_shutdown_super+0x70/0x2b8 [ 51.838806][ T4936] kill_block_super+0x44/0x90 [ 51.839610][ T4936] ext4_kill_sb+0x68/0xa4 [ 51.840365][ T4936] deactivate_locked_super+0xc4/0x140 [ 51.841316][ T4936] deactivate_super+0xd8/0xf8 [ 51.842127][ T4936] cleanup_mnt+0x328/0x3b8 [ 51.842907][ T4936] __cleanup_mnt+0x20/0x30 [ 51.843663][ T4936] task_work_run+0x1c4/0x254 [ 51.844428][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 51.845329][ T4936] el0_svc+0x18c/0x260 [ 51.846057][ T4936] el0t_64_sync_handler+0x48/0x148 [ 51.846931][ T4936] el0t_64_sync+0x198/0x19c [ 51.847714][ T4936] irq event stamp: 257250 [ 51.848455][ T4936] hardirqs last enabled at (257249): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 51.850302][ T4936] hardirqs last disabled at (257250): [] el1_brk64+0x20/0x54 [ 51.851879][ T4936] softirqs last enabled at (257180): [] do_sve_acc+0x32c/0x4b8 [ 51.853484][ T4936] softirqs last disabled at (257178): [] do_sve_acc+0x10c/0x4b8 [ 51.855106][ T4936] ---[ end trace 0000000000000000 ]--- [ 51.858927][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 51.891430][ T5224] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 51. ** replaying previous printk message ** [ 51.897107][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 51.897226][ T4936] ------------[ cut here ]------------ [ 51.897231][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 51.902671][ T4936] Modules linked in: [ 51.903355][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 51.905146][ T4936] Tainted: [W]=WARN [ 51.905847][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.907641][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 51.908954][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 51.910113][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 51.911256][ T4936] sp : ffff80009b2f7060 [ 51.911963][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 51.913371][ T4936] x26: ffff0000e309e900 x25: ffff0000e309e928 x24: ffff800088a09bc0 [ 51.914765][ T4936] x23: ffff0000d189e000 x22: 0000000000000381 x21: ffff0000d189e068 [ 51.916165][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 0000000000000000 [ 51.917562][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 51.918939][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 51.920226][ T4936] x11: 0000000000000bff x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 51.921486][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 51.922828][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 51.924208][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 51.925601][ T4936] Call trace: [ 51.926137][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 51.927244][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 51.928158][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 51.929166][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 51.930153][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 51.931100][ T4936] ext4_dirty_inode+0xd4/0x104 [ 51.931920][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 51.932773][ T4936] sync_lazytime+0x1a8/0x68c [ 51.933558][ T4936] iput+0x1cc/0xb90 [ 51.934201][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 51.935067][ T4936] __dentry_kill+0x170/0x5fc [ 51.935831][ T4936] shrink_kill+0xe8/0x318 [ 51.936572][ T4936] shrink_dentry_list+0x154/0x2a4 [ 51.937421][ T4936] shrink_dcache_tree+0x40c/0x570 [ 51.938281][ T4936] do_one_tree+0x24/0x58 [ 51.939002][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 51.939917][ T4936] generic_shutdown_super+0x70/0x2b8 [ 51.940837][ T4936] kill_block_super+0x44/0x90 [ 51.941635][ T4936] ext4_kill_sb+0x68/0xa4 [ 51.942385][ T4936] deactivate_locked_super+0xc4/0x140 [ 51.943305][ T4936] deactivate_super+0xd8/0xf8 [ 51.944130][ T4936] cleanup_mnt+0x328/0x3b8 [ 51.944888][ T4936] __cleanup_mnt+0x20/0x30 [ 51.945597][ T4936] task_work_run+0x1c4/0x254 [ 51.946397][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 51.947278][ T4936] el0_svc+0x18c/0x260 [ 51.947996][ T4936] el0t_64_sync_handler+0x48/0x148 [ 51.948862][ T4936] el0t_64_sync+0x198/0x19c [ 51.949594][ T4936] irq event stamp: 263420 [ 51.950350][ T4936] hardirqs last enabled at (263419): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 51.952024][ T4936] hardirqs last disabled at (263420): [] el1_brk64+0x20/0x54 [ 51.953507][ T4936] softirqs last enabled at (263346): [] do_sve_acc+0x32c/0x4b8 [ 51.955104][ T4936] softirqs last disabled at (263344): [] do_sve_acc+0x10c/0x4b8 [ 51.956610][ T4936] ---[ end trace 0000000000000000 ]--- [ 51.960005][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 51.983126][ T5228] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 51.987972][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 51.988090][ T4936] ------------[ cut here ]------------ [ 51.988097][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 51.992659][ T4936] Modules linked in: [ 51.993309][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 51.995010][ T4936] Tainted: [W]=WARN [ 51.995608][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 51.997271][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 51.998555][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 51.999615][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 52.000624][ T4936] sp : ffff80009b2f7060 [ 52.001334][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 52.002666][ T4936] x26: ffff0000e30994e8 x25: ffff0000e3099510 x24: ffff800088a09bc0 [ 52.004001][ T4936] x23: ffff0000ddd32000 x22: 0000000000000381 x21: ffff0000ddd32068 [ 52.005383][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 0000000000000000 [ 52.006668][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 52.008053][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 52.009388][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 52.010697][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 52.012007][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 52.013351][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 52.014648][ T4936] Call trace: [ 52.015185][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 52.016248][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 52.017108][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 52.018066][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 52.018966][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 52.019842][ T4936] ext4_dirty_inode+0xd4/0x104 [ 52.020611][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 52.021415][ T4936] sync_lazytime+0x1a8/0x68c [ 52.022193][ T4936] iput+0x1cc/0xb90 [ 52.022859][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 52.023731][ T4936] __dentry_kill+0x170/0x5fc [ 52.024448][ T4936] shrink_kill+0xe8/0x318 [ 52.025113][ T4936] shrink_dentry_list+0x154/0x2a4 [ 52.025968][ T4936] shrink_dcache_tree+0x40c/0x570 [ 52.026796][ T4936] do_one_tree+0x24/0x58 [ 52.027488][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 52.028360][ T4936] generic_shutdown_super+0x70/0x2b8 [ 52.029198][ T4936] kill_block_super+0x44/0x90 [ 52.029928][ T4936] ext4_kill_sb+0x68/0xa4 [ 52.030609][ T4936] deactivate_locked_super+0xc4/0x140 [ 52.031533][ T4936] deactivate_super+0xd8/0xf8 [ 52.032313][ T4936] cleanup_mnt+0x328/0x3b8 [ 52.033085][ T4936] __cleanup_mnt+0x20/0x30 [ 52.033805][ T4936] task_work_run+0x1c4/0x254 [ 52.034620][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 52.035523][ T4936] el0_svc+0x18c/0x260 [ 52.036226][ T4936] el0t_64_sync_handler+0x48/0x148 [ 52.037113][ T4936] el0t_64_sync+0x198/0x19c [ 52.037873][ T4936] irq event stamp: 269564 [ 52.038612][ T4936] hardirqs last enabled at (269563): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 52.040370][ T4936] hardirqs last disabled at (269564): [] el1_brk64+0x20/0x54 [ 52.041806][ T4936] softirqs last enabled at (269494): [] do_sve_acc+0x32c/0x4b8 [ 52.043347][ T4936] softirqs last disabled at (269492): [] do_sve_acc+0x10c/0x4b8 [ 52.044872][ T4936] ---[ end trace 0000000000000000 ]--- [ 52.048756][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 52.071599][ T5232] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 52.078180][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 52.080558][ T4936] ------------[ cut here ]------------ [ 52.080566][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 52.083314][ T4936] Modules linked in: [ 52.083937][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 52.085514][ T4936] Tainted: [W]=WARN [ 52.086136][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.087669][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 52.088933][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 52.090038][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 52.091129][ T4936] sp : ffff80009b2f7060 [ 52.091846][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 52.093212][ T4936] x26: ffff0000e3078b90 x25: ffff0000e3078bb8 x24: ffff800088a09bc0 [ 52.094453][ T4936] x23: ffff0000d8f34000 x22: 0000000000000381 x21: ffff0000d8f34068 [ 52.095797][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 52.097206][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c [ 52.098452][ T4936] x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 [ 52.099844][ T4936] x11: 00000000000009dc x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 52.101276][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 52.102639][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 52.103972][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 52.105284][ T4936] Call trace: [ 52.105883][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 52.106906][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 52.107827][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 52.108862][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 52.109856][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 52.110743][ T4936] ext4_dirty_inode+0xd4/0x104 [ 52.111512][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 52.112342][ T4936] sync_lazytime+0x1a8/0x68c [ 52.113133][ T4936] iput+0x1cc/0xb90 [ 52.113826][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 52.114648][ T4936] __dentry_kill+0x170/0x5fc [ 52.115437][ T4936] shrink_kill+0xe8/0x318 [ 52.116184][ T4936] shrink_dentry_list+0x154/0x2a4 [ 52.117048][ T4936] shrink_dcache_tree+0x40c/0x570 [ 52.117940][ T4936] do_one_tree+0x24/0x58 [ 52.118648][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 52.119540][ T4936] generic_shutdown_super+0x70/0x2b8 [ 52.120399][ T4936] kill_block_super+0x44/0x90 [ 52.121145][ T4936] ext4_kill_sb+0x68/0xa4 [ 52.121848][ T4936] deactivate_locked_super+0xc4/0x140 [ 52.122774][ T4936] deactivate_super+0xd8/0xf8 [ 52.123583][ T4936] cleanup_mnt+0x328/0x3b8 [ 52.124352][ T4936] __cleanup_mnt+0x20/0x30 [ 52.125089][ T4936] task_work_run+0x1c4/0x254 [ 52.125876][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 52.126805][ T4936] el0_svc+0x18c/0x260 [ 52.127465][ T4936] el0t_64_sync_handler+0x48/0x148 [ 52.128272][ T4936] el0t_64_sync+0x198/0x19c [ 52.128968][ T4936] irq event stamp: 274932 [ 52.129719][ T4936] hardirqs last enabled at (274931): [] finish_task_switch+0x22c/0x768 [ 52.131312][ T4936] hardirqs last disabled at (274932): [] el1_brk64+0x20/0x54 [ 52.132851][ T4936] softirqs last enabled at (274864): [] do_sve_acc+0x32c/0x4b8 [ 52.134356][ T4936] softirqs last disabled at (274862): [] do_sve_acc+0x10c/0x4b8 [ 52.135856][ T4936] ---[ end trace 0000000000000000 ]--- [ 52.141892][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 52.172184][ T5236] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 52.1 ** replaying previous printk message ** [ 52.175657][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 52.175792][ T4936] ------------[ cut here ]------------ [ 52.175797][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 52.181133][ T4936] Modules linked in: [ 52.181807][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 52.183564][ T4936] Tainted: [W]=WARN [ 52.184230][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.186008][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 52.187388][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 52.188507][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 52.189596][ T4936] sp : ffff80009b2f7060 [ 52.190295][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 52.191695][ T4936] x26: ffff0000e3288238 x25: ffff0000e3288260 x24: ffff800088a09bc0 [ 52.192979][ T4936] x23: ffff0000d8ab2000 x22: 0000000000000381 x21: ffff0000d8ab2068 [ 52.194269][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 52.195542][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 52.196836][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 52.198112][ T4936] x11: 0000000000000c5c x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 52.199492][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 52.200890][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 52.202276][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 52.203668][ T4936] Call trace: [ 52.204198][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 52.205270][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 52.206127][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 52.207082][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 52.208041][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 52.208938][ T4936] ext4_dirty_inode+0xd4/0x104 [ 52.209769][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 52.210618][ T4936] sync_lazytime+0x1a8/0x68c [ 52.211374][ T4936] iput+0x1cc/0xb90 [ 52.212019][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 52.212865][ T4936] __dentry_kill+0x170/0x5fc [ 52.213643][ T4936] shrink_kill+0xe8/0x318 [ 52.214368][ T4936] shrink_dentry_list+0x154/0x2a4 [ 52.215248][ T4936] shrink_dcache_tree+0x40c/0x570 [ 52.216096][ T4936] do_one_tree+0x24/0x58 [ 52.216813][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 52.217724][ T4936] generic_shutdown_super+0x70/0x2b8 [ 52.218624][ T4936] kill_block_super+0x44/0x90 [ 52.219451][ T4936] ext4_kill_sb+0x68/0xa4 [ 52.220226][ T4936] deactivate_locked_super+0xc4/0x140 [ 52.221156][ T4936] deactivate_super+0xd8/0xf8 [ 52.221947][ T4936] cleanup_mnt+0x328/0x3b8 [ 52.222796][ T4936] __cleanup_mnt+0x20/0x30 [ 52.223593][ T4936] task_work_run+0x1c4/0x254 [ 52.224427][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 52.225284][ T4936] el0_svc+0x18c/0x260 [ 52.225997][ T4936] el0t_64_sync_handler+0x48/0x148 [ 52.226896][ T4936] el0t_64_sync+0x198/0x19c [ 52.227639][ T4936] irq event stamp: 280668 [ 52.228330][ T4936] hardirqs last enabled at (280667): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 52.230077][ T4936] hardirqs last disabled at (280668): [] el1_brk64+0x20/0x54 [ 52.231603][ T4936] softirqs last enabled at (280600): [] do_sve_acc+0x32c/0x4b8 [ 52.233190][ T4936] softirqs last disabled at (280598): [] do_sve_acc+0x10c/0x4b8 [ 52.234805][ T4936] ---[ end trace 0000000000000000 ]--- [ 52.238011][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 52.261341][ T5240] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 52.264334][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 52.264452][ T4936] ------------[ cut here ]------------ [ 52.264459][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 52.269109][ T4936] Modules linked in: [ 52.269737][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 52.271362][ T4936] Tainted: [W]=WARN [ 52.272052][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.273821][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 52.275155][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 52.276266][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 52.277394][ T4936] sp : ffff80009b2f7060 [ 52.278095][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 52.279478][ T4936] x26: ffff0000e3079e40 x25: ffff0000e3079e68 x24: ffff800088a09bc0 [ 52.280896][ T4936] x23: ffff0000d60d2000 x22: 0000000000000381 x21: ffff0000d60d2068 [ 52.282264][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 52.283504][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 52.284864][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 52.286228][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 52.287566][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 52.288835][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 52.290117][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 52.291469][ T4936] Call trace: [ 52.291999][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 52.293101][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 52.294024][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 52.295091][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 52.296121][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 52.297064][ T4936] ext4_dirty_inode+0xd4/0x104 [ 52.297891][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 52.298747][ T4936] sync_lazytime+0x1a8/0x68c [ 52.299517][ T4936] iput+0x1cc/0xb90 [ 52.300125][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 52.300974][ T4936] __dentry_kill+0x170/0x5fc [ 52.301710][ T4936] shrink_kill+0xe8/0x318 [ 52.302409][ T4936] shrink_dentry_list+0x154/0x2a4 [ 52.303270][ T4936] shrink_dcache_tree+0x40c/0x570 [ 52.304090][ T4936] do_one_tree+0x24/0x58 [ 52.304837][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 52.305766][ T4936] generic_shutdown_super+0x70/0x2b8 [ 52.306698][ T4936] kill_block_super+0x44/0x90 [ 52.307509][ T4936] ext4_kill_sb+0x68/0xa4 [ 52.308275][ T4936] deactivate_locked_super+0xc4/0x140 [ 52.309182][ T4936] deactivate_super+0xd8/0xf8 [ 52.309986][ T4936] cleanup_mnt+0x328/0x3b8 [ 52.310703][ T4936] __cleanup_mnt+0x20/0x30 [ 52.311464][ T4936] task_work_run+0x1c4/0x254 [ 52.312228][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 52.313141][ T4936] el0_svc+0x18c/0x260 [ 52.313857][ T4936] el0t_64_sync_handler+0x48/0x148 [ 52.314720][ T4936] el0t_64_sync+0x198/0x19c [ 52.315462][ T4936] irq event stamp: 287400 [ 52.316197][ T4936] hardirqs last enabled at (287399): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 52.317881][ T4936] hardirqs last disabled at (287400): [] el1_brk64+0x20/0x54 [ 52.319426][ T4936] softirqs last enabled at (287324): [] do_sve_acc+0x32c/0x4b8 [ 52.321008][ T4936] softirqs last disabled at (287322): [] do_sve_acc+0x10c/0x4b8 [ 52.322537][ T4936] ---[ end trace 0000000000000000 ]--- [ 52.325803][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 52.360517][ T5244] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 52.365638][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 52.367722][ T4936] ------------[ cut here ]------------ [ 52.367729][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 52.370489][ T4936] Modules linked in: [ 52.371161][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 52.373165][ T4936] Tainted: [W]=WARN [ 52.373797][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.375430][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 52.376779][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 52.377854][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 52.379017][ T4936] sp : ffff80009b2f7060 [ 52.379725][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 52.381075][ T4936] x26: ffff0000e308ccf8 x25: ffff0000e308cd20 x24: ffff800088a09bc0 [ 52.382545][ T4936] x23: ffff0000d99e4000 x22: 0000000000000381 x21: ffff0000d99e4068 [ 52.384007][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 52.385380][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 52.386673][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 52.388069][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 52.389509][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 52.390945][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 52.392269][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 52.393579][ T4936] Call trace: [ 52.394154][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 52.395305][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 52.396203][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 52.397206][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 52.398226][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 52.399131][ T4936] ext4_dirty_inode+0xd4/0x104 [ 52.399961][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 52.400837][ T4936] sync_lazytime+0x1a8/0x68c [ 52.401628][ T4936] iput+0x1cc/0xb90 [ 52.402268][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 52.403195][ T4936] __dentry_kill+0x170/0x5fc [ 52.403990][ T4936] shrink_kill+0xe8/0x318 [ 52.404778][ T4936] shrink_dentry_list+0x154/0x2a4 [ 52.405666][ T4936] shrink_dcache_tree+0x40c/0x570 [ 52.406542][ T4936] do_one_tree+0x24/0x58 [ 52.407285][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 52.408172][ T4936] generic_shutdown_super+0x70/0x2b8 [ 52.409068][ T4936] kill_block_super+0x44/0x90 [ 52.409883][ T4936] ext4_kill_sb+0x68/0xa4 [ 52.410679][ T4936] deactivate_locked_super+0xc4/0x140 [ 52.411637][ T4936] deactivate_super+0xd8/0xf8 [ 52.412426][ T4936] cleanup_mnt+0x328/0x3b8 [ 52.413198][ T4936] __cleanup_mnt+0x20/0x30 [ 52.413981][ T4936] task_work_run+0x1c4/0x254 [ 52.414803][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 52.415764][ T4936] el0_svc+0x18c/0x260 [ 52.416490][ T4936] el0t_64_sync_handler+0x48/0x148 [ 52.417346][ T4936] el0t_64_sync+0x198/0x19c [ 52.418186][ T4936] irq event stamp: 292848 [ 52.418906][ T4936] hardirqs last enabled at (292847): [] finish_task_switch+0x22c/0x768 [ 52.420559][ T4936] hardirqs last disabled at (292848): [] el1_brk64+0x20/0x54 [ 52.422121][ T4936] softirqs last enabled at (292774): [] do_sve_acc+0x32c/0x4b8 [ 52.423689][ T4936] softirqs last disabled at (292772): [] do_sve_acc+0x10c/0x4b8 [ 52.425290][ T4936] ---[ end trace 0000000000000000 ]--- [ 52.428604][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 52.461795][ T5248] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 52.464902][ T4 ** replaying previous printk message ** [ 52.464902][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 52.465152][ T4936] ------------[ cut here ]------------ [ 52.465158][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 52.470341][ T4936] Modules linked in: [ 52.470973][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 52.472833][ T4936] Tainted: [W]=WARN [ 52.473483][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.475094][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 52.476500][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 52.477618][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 52.478741][ T4936] sp : ffff80009b2f7060 [ 52.479452][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 52.480772][ T4936] x26: ffff0000e32943a0 x25: ffff0000e32943c8 x24: ffff800088a09bc0 [ 52.482128][ T4936] x23: ffff0000d98fa000 x22: 0000000000000381 x21: ffff0000d98fa068 [ 52.483499][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 52.484874][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 [ 52.486252][ T4936] x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 [ 52.487667][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 52.489016][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 52.490353][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 52.491650][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 52.493052][ T4936] Call trace: [ 52.493606][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 52.494671][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 52.495528][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 52.496502][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 52.497463][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 52.498411][ T4936] ext4_dirty_inode+0xd4/0x104 [ 52.499216][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 52.500089][ T4936] sync_lazytime+0x1a8/0x68c [ 52.500819][ T4936] iput+0x1cc/0xb90 [ 52.501429][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 52.502305][ T4936] __dentry_kill+0x170/0x5fc [ 52.503089][ T4936] shrink_kill+0xe8/0x318 [ 52.503815][ T4936] shrink_dentry_list+0x154/0x2a4 [ 52.504645][ T4936] shrink_dcache_tree+0x40c/0x570 [ 52.505473][ T4936] do_one_tree+0x24/0x58 [ 52.506181][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 52.507134][ T4936] generic_shutdown_super+0x70/0x2b8 [ 52.508028][ T4936] kill_block_super+0x44/0x90 [ 52.508853][ T4936] ext4_kill_sb+0x68/0xa4 [ 52.509586][ T4936] deactivate_locked_super+0xc4/0x140 [ 52.510494][ T4936] deactivate_super+0xd8/0xf8 [ 52.511265][ T4936] cleanup_mnt+0x328/0x3b8 [ 52.511989][ T4936] __cleanup_mnt+0x20/0x30 [ 52.512689][ T4936] task_work_run+0x1c4/0x254 [ 52.513437][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 52.514353][ T4936] el0_svc+0x18c/0x260 [ 52.515009][ T4936] el0t_64_sync_handler+0x48/0x148 [ 52.515873][ T4936] el0t_64_sync+0x198/0x19c [ 52.516707][ T4936] irq event stamp: 298318 [ 52.517392][ T4936] hardirqs last enabled at (298317): [] finish_task_switch+0x22c/0x768 [ 52.519041][ T4936] hardirqs last disabled at (298318): [] el1_brk64+0x20/0x54 [ 52.520625][ T4936] softirqs last enabled at (298244): [] do_sve_acc+0x32c/0x4b8 [ 52.522187][ T4936] softirqs last disabled at (298242): [] do_sve_acc+0x10c/0x4b8 [ 52.523745][ T4936] ---[ end trace 0000000000000000 ]--- [ 52.526334][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 52.552315][ T5252] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 52. ** replaying previous printk message ** [ 52.555124][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 52.555241][ T4936] ------------[ cut here ]------------ [ 52.555245][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 52.560438][ T4936] Modules linked in: [ 52.561140][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 52.563048][ T4936] Tainted: [W]=WARN [ 52.563696][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.565331][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 52.566676][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 52.567838][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 52.568926][ T4936] sp : ffff80009b2f7060 [ 52.569598][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 52.570914][ T4936] x26: ffff0000dd1843a0 x25: ffff0000dd1843c8 x24: ffff800088a09bc0 [ 52.572232][ T4936] x23: ffff0000d98e6000 x22: 0000000000000381 x21: ffff0000d98e6068 [ 52.573565][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 52.574865][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 52.576095][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 52.577496][ T4936] x11: 0000000000000afe x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 52.578856][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 52.580215][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 52.581517][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 52.582794][ T4936] Call trace: [ 52.583334][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 52.584482][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 52.585311][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 52.586200][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 52.587174][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 52.588118][ T4936] ext4_dirty_inode+0xd4/0x104 [ 52.588890][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 52.589724][ T4936] sync_lazytime+0x1a8/0x68c [ 52.590534][ T4936] iput+0x1cc/0xb90 [ 52.591174][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 52.591981][ T4936] __dentry_kill+0x170/0x5fc [ 52.592702][ T4936] shrink_kill+0xe8/0x318 [ 52.593405][ T4936] shrink_dentry_list+0x154/0x2a4 [ 52.594258][ T4936] shrink_dcache_tree+0x40c/0x570 [ 52.595084][ T4936] do_one_tree+0x24/0x58 [ 52.595804][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 52.596749][ T4936] generic_shutdown_super+0x70/0x2b8 [ 52.597574][ T4936] kill_block_super+0x44/0x90 [ 52.598383][ T4936] ext4_kill_sb+0x68/0xa4 [ 52.599116][ T4936] deactivate_locked_super+0xc4/0x140 [ 52.600000][ T4936] deactivate_super+0xd8/0xf8 [ 52.600774][ T4936] cleanup_mnt+0x328/0x3b8 [ 52.601514][ T4936] __cleanup_mnt+0x20/0x30 [ 52.602262][ T4936] task_work_run+0x1c4/0x254 [ 52.603010][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 52.603885][ T4936] el0_svc+0x18c/0x260 [ 52.604596][ T4936] el0t_64_sync_handler+0x48/0x148 [ 52.605445][ T4936] el0t_64_sync+0x198/0x19c [ 52.606198][ T4936] irq event stamp: 304150 [ 52.606901][ T4936] hardirqs last enabled at (304149): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 52.608579][ T4936] hardirqs last disabled at (304150): [] el1_brk64+0x20/0x54 [ 52.610051][ T4936] softirqs last enabled at (304082): [] do_sve_acc+0x32c/0x4b8 [ 52.611557][ T4936] softirqs last disabled at (304080): [] do_sve_acc+0x10c/0x4b8 [ 52.613050][ T4936] ---[ end trace 0000000000000000 ]--- [ 52.615593][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 52.652591][ T5256] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 52.6 ** replaying previous printk message ** [ 52.656273][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 52.656393][ T4936] ------------[ cut here ]------------ [ 52.656397][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 52.661967][ T4936] Modules linked in: [ 52.662693][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 52.664541][ T4936] Tainted: [W]=WARN [ 52.665236][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.667004][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 52.668321][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 52.669449][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 52.670641][ T4936] sp : ffff80009b2f7060 [ 52.671330][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 52.672670][ T4936] x26: ffff0000e30a30f0 x25: ffff0000e30a3118 x24: ffff800088a09bc0 [ 52.673945][ T4936] x23: ffff0000de556000 x22: 0000000000000381 x21: ffff0000de556068 [ 52.675280][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 52.676575][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 52.677997][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 52.679415][ T4936] x11: 0000000000000d33 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 52.680855][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 52.682240][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 52.683545][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 52.685000][ T4936] Call trace: [ 52.685574][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 52.686643][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 52.687590][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 52.688631][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 52.689579][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 52.690490][ T4936] ext4_dirty_inode+0xd4/0x104 [ 52.691289][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 52.692148][ T4936] sync_lazytime+0x1a8/0x68c [ 52.692902][ T4936] iput+0x1cc/0xb90 [ 52.693532][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 52.694423][ T4936] __dentry_kill+0x170/0x5fc [ 52.695183][ T4936] shrink_kill+0xe8/0x318 [ 52.695906][ T4936] shrink_dentry_list+0x154/0x2a4 [ 52.696739][ T4936] shrink_dcache_tree+0x40c/0x570 [ 52.697660][ T4936] do_one_tree+0x24/0x58 [ 52.698401][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 52.699335][ T4936] generic_shutdown_super+0x70/0x2b8 [ 52.700269][ T4936] kill_block_super+0x44/0x90 [ 52.701072][ T4936] ext4_kill_sb+0x68/0xa4 [ 52.701819][ T4936] deactivate_locked_super+0xc4/0x140 [ 52.702745][ T4936] deactivate_super+0xd8/0xf8 [ 52.703592][ T4936] cleanup_mnt+0x328/0x3b8 [ 52.704358][ T4936] __cleanup_mnt+0x20/0x30 [ 52.705148][ T4936] task_work_run+0x1c4/0x254 [ 52.705914][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 52.706875][ T4936] el0_svc+0x18c/0x260 [ 52.707557][ T4936] el0t_64_sync_handler+0x48/0x148 [ 52.708398][ T4936] el0t_64_sync+0x198/0x19c [ 52.709170][ T4936] irq event stamp: 309484 [ 52.709916][ T4936] hardirqs last enabled at (309483): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 52.711657][ T4936] hardirqs last disabled at (309484): [] el1_brk64+0x20/0x54 [ 52.713186][ T4936] softirqs last enabled at (309416): [] do_sve_acc+0x32c/0x4b8 [ 52.714715][ T4936] softirqs last disabled at (309414): [] do_sve_acc+0x10c/0x4b8 [ 52.716360][ T4936] ---[ end trace 0000000000000000 ]--- [ 52.719249][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 52.741316][ T5260] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 52.745818][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 52.745939][ T4936] ------------[ cut here ]------------ [ 52.745945][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 52.750645][ T4936] Modules linked in: [ 52.751329][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 52.753209][ T4936] Tainted: [W]=WARN [ 52.753870][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.755676][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 52.757059][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 52.758189][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 52.759340][ T4936] sp : ffff80009b2f7060 [ 52.760032][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 52.761447][ T4936] x26: ffff0000e329b0f0 x25: ffff0000e329b118 x24: ffff800088a09bc0 [ 52.762819][ T4936] x23: ffff0000da8de000 x22: 0000000000000381 x21: ffff0000da8de068 [ 52.764248][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 52.765460][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 52.766770][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 52.768080][ T4936] x11: 0000000000000d8d x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 52.769476][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 52.770900][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 52.772305][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 52.773695][ T4936] Call trace: [ 52.774285][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 52.775439][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 52.776301][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 52.777264][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 52.778184][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 52.779120][ T4936] ext4_dirty_inode+0xd4/0x104 [ 52.779956][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 52.780823][ T4936] sync_lazytime+0x1a8/0x68c [ 52.781618][ T4936] iput+0x1cc/0xb90 [ 52.782306][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 52.783198][ T4936] __dentry_kill+0x170/0x5fc [ 52.783984][ T4936] shrink_kill+0xe8/0x318 [ 52.784693][ T4936] shrink_dentry_list+0x154/0x2a4 [ 52.785558][ T4936] shrink_dcache_tree+0x40c/0x570 [ 52.786459][ T4936] do_one_tree+0x24/0x58 [ 52.787198][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 52.788108][ T4936] generic_shutdown_super+0x70/0x2b8 [ 52.789046][ T4936] kill_block_super+0x44/0x90 [ 52.789864][ T4936] ext4_kill_sb+0x68/0xa4 [ 52.790573][ T4936] deactivate_locked_super+0xc4/0x140 [ 52.791518][ T4936] deactivate_super+0xd8/0xf8 [ 52.792325][ T4936] cleanup_mnt+0x328/0x3b8 [ 52.793131][ T4936] __cleanup_mnt+0x20/0x30 [ 52.793887][ T4936] task_work_run+0x1c4/0x254 [ 52.794657][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 52.795598][ T4936] el0_svc+0x18c/0x260 [ 52.796315][ T4936] el0t_64_sync_handler+0x48/0x148 [ 52.797221][ T4936] el0t_64_sync+0x198/0x19c [ 52.798027][ T4936] irq event stamp: 315602 [ 52.798828][ T4936] hardirqs last enabled at (315601): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 52.800689][ T4936] hardirqs last disabled at (315602): [] el1_brk64+0x20/0x54 [ 52.802239][ T4936] softirqs last enabled at (315530): [] do_sve_acc+0x32c/0x4b8 [ 52.803823][ T4936] softirqs last disabled at (315528): [] do_sve_acc+0x10c/0x4b8 [ 52.805457][ T4936] ---[ end trace 0000000000000000 ]--- [ 52.808151][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 52.842015][ T5264] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 52.846707][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 52.846835][ T4936] ------------[ cut here ]------------ [ 52.846842][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 52.851688][ T4936] Modules linked in: [ 52.852378][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 52.854250][ T4936] Tainted: [W]=WARN [ 52.854906][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.856638][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 52.857957][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 52.858996][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 52.860079][ T4936] sp : ffff80009b2f7060 [ 52.860782][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 52.862099][ T4936] x26: ffff0000e32a4cf8 x25: ffff0000e32a4d20 x24: ffff800088a09bc0 [ 52.863408][ T4936] x23: ffff0000d9cb6000 x22: 0000000000000381 x21: ffff0000d9cb6068 [ 52.864712][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 52.866105][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 52.867547][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 52.868945][ T4936] x11: 0000000000000de7 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 52.870396][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 52.871720][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 52.873033][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 52.874401][ T4936] Call trace: [ 52.874944][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 52.876036][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 52.876898][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 52.877927][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 52.878974][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 52.879880][ T4936] ext4_dirty_inode+0xd4/0x104 [ 52.880654][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 52.881594][ T4936] sync_lazytime+0x1a8/0x68c [ 52.882409][ T4936] iput+0x1cc/0xb90 [ 52.883080][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 52.884010][ T4936] __dentry_kill+0x170/0x5fc [ 52.884802][ T4936] shrink_kill+0xe8/0x318 [ 52.885569][ T4936] shrink_dentry_list+0x154/0x2a4 [ 52.886417][ T4936] shrink_dcache_tree+0x40c/0x570 [ 52.887306][ T4936] do_one_tree+0x24/0x58 [ 52.888078][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 52.888979][ T4936] generic_shutdown_super+0x70/0x2b8 [ 52.889842][ T4936] kill_block_super+0x44/0x90 [ 52.890615][ T4936] ext4_kill_sb+0x68/0xa4 [ 52.891351][ T4936] deactivate_locked_super+0xc4/0x140 [ 52.892281][ T4936] deactivate_super+0xd8/0xf8 [ 52.893091][ T4936] cleanup_mnt+0x328/0x3b8 [ 52.893878][ T4936] __cleanup_mnt+0x20/0x30 [ 52.894619][ T4936] task_work_run+0x1c4/0x254 [ 52.895402][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 52.896346][ T4936] el0_svc+0x18c/0x260 [ 52.897049][ T4936] el0t_64_sync_handler+0x48/0x148 [ 52.897939][ T4936] el0t_64_sync+0x198/0x19c [ 52.898743][ T4936] irq event stamp: 321042 [ 52.899494][ T4936] hardirqs last enabled at (321041): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 52.901267][ T4936] hardirqs last disabled at (321042): [] el1_brk64+0x20/0x54 [ 52.902849][ T4936] softirqs last enabled at (320970): [] do_sve_acc+0x32c/0x4b8 [ 52.904422][ T4936] softirqs last disabled at (320968): [] do_sve_acc+0x10c/0x4b8 [ 52.905991][ T4936] ---[ end trace 0000000000000000 ]--- [ 52.910808][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 52.952999][ T5268] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 52.9 ** replaying previous printk message ** [ 52.957104][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 52.957212][ T4936] ------------[ cut here ]------------ [ 52.957216][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 52.962776][ T4936] Modules linked in: [ 52.963465][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 52.965358][ T4936] Tainted: [W]=WARN [ 52.965979][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.967755][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 52.969131][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 52.970259][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 52.971425][ T4936] sp : ffff80009b2f7060 [ 52.972148][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 52.973585][ T4936] x26: ffff0000e32a1e40 x25: ffff0000e32a1e68 x24: ffff800088a09bc0 [ 52.975015][ T4936] x23: ffff0000c3118000 x22: 0000000000000381 x21: ffff0000c3118068 [ 52.976487][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 52.977889][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 52.979410][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 52.980800][ T4936] x11: 0000000000000e41 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 52.982234][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 52.983654][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 52.985065][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 52.986456][ T4936] Call trace: [ 52.987023][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 52.988176][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 52.989199][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 52.990241][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 52.991262][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 52.992279][ T4936] ext4_dirty_inode+0xd4/0x104 [ 52.993073][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 52.993963][ T4936] sync_lazytime+0x1a8/0x68c [ 52.994798][ T4936] iput+0x1cc/0xb90 [ 52.995476][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 52.996311][ T4936] __dentry_kill+0x170/0x5fc [ 52.997099][ T4936] shrink_kill+0xe8/0x318 [ 52.997877][ T4936] shrink_dentry_list+0x154/0x2a4 [ 52.998738][ T4936] shrink_dcache_tree+0x40c/0x570 [ 52.999621][ T4936] do_one_tree+0x24/0x58 [ 52.999969][ T4727] Bluetooth: hci0: command tx timeout [ 53.001232][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 53.002170][ T4936] generic_shutdown_super+0x70/0x2b8 [ 53.003135][ T4936] kill_block_super+0x44/0x90 [ 53.003979][ T4936] ext4_kill_sb+0x68/0xa4 [ 53.004695][ T4936] deactivate_locked_super+0xc4/0x140 [ 53.005642][ T4936] deactivate_super+0xd8/0xf8 [ 53.006447][ T4936] cleanup_mnt+0x328/0x3b8 [ 53.007190][ T4936] __cleanup_mnt+0x20/0x30 [ 53.007961][ T4936] task_work_run+0x1c4/0x254 [ 53.008797][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 53.009728][ T4936] el0_svc+0x18c/0x260 [ 53.010432][ T4936] el0t_64_sync_handler+0x48/0x148 [ 53.011349][ T4936] el0t_64_sync+0x198/0x19c [ 53.012175][ T4936] irq event stamp: 326462 [ 53.012922][ T4936] hardirqs last enabled at (326461): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 53.014707][ T4936] hardirqs last disabled at (326462): [] el1_brk64+0x20/0x54 [ 53.016249][ T4936] softirqs last enabled at (326394): [] do_sve_acc+0x32c/0x4b8 [ 53.017881][ T4936] softirqs last disabled at (326392): [] do_sve_acc+0x10c/0x4b8 [ 53.019513][ T4936] ---[ end trace 0000000000000000 ]--- [ 53.022943][ T4936] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 53 ** replaying previous printk message ** [ 53.064605][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 53.064719][ T4936] ------------[ cut here ]------------ [ 53.064723][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 53.069872][ T4936] Modules linked in: [ 53.070543][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 53.072530][ T4936] Tainted: [W]=WARN [ 53.073233][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.074934][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 53.076311][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 53.077499][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 53.078636][ T4936] sp : ffff80009b2f7060 [ 53.079374][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 53.080755][ T4936] x26: ffff0000e32a9e40 x25: ffff0000e32a9e68 x24: ffff800088a09bc0 [ 53.082205][ T4936] x23: ffff0000d9ee4000 x22: 0000000000000381 x21: ffff0000d9ee4068 [ 53.083695][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 00000000ffffffff [ 53.085089][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 53.086487][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 53.087925][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 53.089310][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 53.090717][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 53.092147][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 53.093561][ T4936] Call trace: [ 53.094093][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 53.095297][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 53.096200][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 53.097170][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 53.098162][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 53.099126][ T4936] ext4_dirty_inode+0xd4/0x104 [ 53.099983][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 53.100900][ T4936] sync_lazytime+0x1a8/0x68c [ 53.101743][ T4936] iput+0x1cc/0xb90 [ 53.102404][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 53.103256][ T4936] __dentry_kill+0x170/0x5fc [ 53.104007][ T4936] shrink_kill+0xe8/0x318 [ 53.104713][ T4936] shrink_dentry_list+0x154/0x2a4 [ 53.105521][ T4936] shrink_dcache_tree+0x40c/0x570 [ 53.106375][ T4936] do_one_tree+0x24/0x58 [ 53.107077][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 53.108039][ T4936] generic_shutdown_super+0x70/0x2b8 [ 53.108954][ T4936] kill_block_super+0x44/0x90 [ 53.109792][ T4936] ext4_kill_sb+0x68/0xa4 [ 53.110547][ T4936] deactivate_locked_super+0xc4/0x140 [ 53.111479][ T4936] deactivate_super+0xd8/0xf8 [ 53.112306][ T4936] cleanup_mnt+0x328/0x3b8 [ 53.113083][ T4936] __cleanup_mnt+0x20/0x30 [ 53.113881][ T4936] task_work_run+0x1c4/0x254 [ 53.114708][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 53.115612][ T4936] el0_svc+0x18c/0x260 [ 53.116346][ T4936] el0t_64_sync_handler+0x48/0x148 [ 53.117270][ T4936] el0t_64_sync+0x198/0x19c [ 53.118089][ T4936] irq event stamp: 332620 [ 53.118868][ T4936] hardirqs last enabled at (332619): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 53.120650][ T4936] hardirqs last disabled at (332620): [] el1_brk64+0x20/0x54 [ 53.122220][ T4936] softirqs last enabled at (332548): [] do_sve_acc+0x32c/0x4b8 [ 53.123803][ T4936] softirqs last disabled at (332546): [] do_sve_acc+0x10c/0x4b8 [ 53.125395][ T4936] ---[ end trace 0000000000000000 ]--- [ 53.157455][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 53.157580][ T4936] ------------[ cut here ]------------ [ 53.157587][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 53.162686][ T4936] Modules linked in: [ 53.163363][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 53.165218][ T4936] Tainted: [W]=WARN [ 53.165837][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.167456][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 53.168849][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 53.170025][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 53.171192][ T4936] sp : ffff80009b2f7060 [ 53.171929][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 53.173312][ T4936] x26: ffff0000dd17d650 x25: ffff0000dd17d678 x24: ffff800088a09bc0 [ 53.174740][ T4936] x23: ffff0000c3020000 x22: 0000000000000381 x21: ffff0000c3020068 [ 53.176102][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 53.177467][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 53.178906][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 53.180225][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 53.181630][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 53.183049][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 53.184380][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 53.185788][ T4936] Call trace: [ 53.186335][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 53.187445][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 53.188356][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 53.189318][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 53.190220][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 53.191171][ T4936] ext4_dirty_inode+0xd4/0x104 [ 53.191961][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 53.192793][ T4936] sync_lazytime+0x1a8/0x68c [ 53.193601][ T4936] iput+0x1cc/0xb90 [ 53.194235][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 53.195096][ T4936] __dentry_kill+0x170/0x5fc [ 53.195920][ T4936] shrink_kill+0xe8/0x318 [ 53.196665][ T4936] shrink_dentry_list+0x154/0x2a4 [ 53.197557][ T4936] shrink_dcache_tree+0x40c/0x570 [ 53.198403][ T4936] do_one_tree+0x24/0x58 [ 53.199137][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 53.200101][ T4936] generic_shutdown_super+0x70/0x2b8 [ 53.201067][ T4936] kill_block_super+0x44/0x90 [ 53.201864][ T4936] ext4_kill_sb+0x68/0xa4 [ 53.202629][ T4936] deactivate_locked_super+0xc4/0x140 [ 53.203528][ T4936] deactivate_super+0xd8/0xf8 [ 53.204349][ T4936] cleanup_mnt+0x328/0x3b8 [ 53.205094][ T4936] __cleanup_mnt+0x20/0x30 [ 53.205846][ T4936] task_work_run+0x1c4/0x254 [ 53.206649][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 53.207495][ T4936] el0_svc+0x18c/0x260 [ 53.208209][ T4936] el0t_64_sync_handler+0x48/0x148 [ 53.209127][ T4936] el0t_64_sync+0x198/0x19c [ 53.209917][ T4936] irq event stamp: 337764 [ 53.210614][ T4936] hardirqs last enabled at (337763): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 53.212412][ T4936] hardirqs last disabled at (337764): [] el1_brk64+0x20/0x54 [ 53.213922][ T4936] softirqs last enabled at (337694): [] do_sve_acc+0x32c/0x4b8 [ 53.215507][ T4936] softirqs last disabled at (337692): [] do_sve_acc+0x10c/0x4b8 [ 53.217164][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 53.267033][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 53.267154][ T4936] ------------[ cut here ]------------ [ 53.267159][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 53.272806][ T4936] Modules linked in: [ 53.273530][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 53.275421][ T4936] Tainted: [W]=WARN [ 53.276097][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.277862][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 53.279235][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 53.280317][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 53.281404][ T4936] sp : ffff80009b2f7060 [ 53.282126][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 53.283619][ T4936] x26: ffff0000e32af258 x25: ffff0000e32af280 x24: ffff800088a09bc0 [ 53.284979][ T4936] x23: ffff0000c66b0000 x22: 0000000000000381 x21: ffff0000c66b0068 [ 53.286408][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 53.287813][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 53.289273][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 53.290636][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 53.292021][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 53.293383][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 53.294798][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 53.296105][ T4936] Call trace: [ 53.296696][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 53.297809][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 53.298620][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 53.299655][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 53.300601][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 53.301563][ T4936] ext4_dirty_inode+0xd4/0x104 [ 53.302416][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 53.303311][ T4936] sync_lazytime+0x1a8/0x68c [ 53.304119][ T4936] iput+0x1cc/0xb90 [ 53.304800][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 53.305716][ T4936] __dentry_kill+0x170/0x5fc [ 53.306491][ T4936] shrink_kill+0xe8/0x318 [ 53.307258][ T4936] shrink_dentry_list+0x154/0x2a4 [ 53.308157][ T4936] shrink_dcache_tree+0x40c/0x570 [ 53.309065][ T4936] do_one_tree+0x24/0x58 [ 53.309827][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 53.310795][ T4936] generic_shutdown_super+0x70/0x2b8 [ 53.311692][ T4936] kill_block_super+0x44/0x90 [ 53.312546][ T4936] ext4_kill_sb+0x68/0xa4 [ 53.313313][ T4936] deactivate_locked_super+0xc4/0x140 [ 53.314323][ T4936] deactivate_super+0xd8/0xf8 [ 53.315156][ T4936] cleanup_mnt+0x328/0x3b8 [ 53.315938][ T4936] __cleanup_mnt+0x20/0x30 [ 53.316707][ T4936] task_work_run+0x1c4/0x254 [ 53.317523][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 53.318496][ T4936] el0_svc+0x18c/0x260 [ 53.319212][ T4936] el0t_64_sync_handler+0x48/0x148 [ 53.320084][ T4936] el0t_64_sync+0x198/0x19c [ 53.320862][ T4936] irq event stamp: 344166 [ 53.321689][ T4936] hardirqs last enabled at (344165): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 53.323481][ T4936] hardirqs last disabled at (344166): [] el1_brk64+0x20/0x54 [ 53.325102][ T4936] softirqs last enabled at (344090): [] do_sve_acc+0x32c/0x4b8 [ 53.326797][ T4936] softirqs last disabled at (344088): [] do_sve_acc+0x10c/0x4b8 [ 53.328385][ T4936] ---[ end trace 0000000000000000 ]--- [ 53.365440][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 53.367615][ T4936] ------------[ cut here ]------------ [ 53.367622][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 53.370474][ T4936] Modules linked in: [ 53.371169][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 53.373000][ T4936] Tainted: [W]=WARN [ 53.373623][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.375329][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 53.376641][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 53.377762][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 53.378841][ T4936] sp : ffff80009b2f7060 [ 53.379484][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 53.380807][ T4936] x26: ffff0000dd13ccf8 x25: ffff0000dd13cd20 x24: ffff800088a09bc0 [ 53.382096][ T4936] x23: ffff0000c56ca000 x22: 0000000000000381 x21: ffff0000c56ca068 [ 53.383350][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 53.384650][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c [ 53.386034][ T4936] x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 [ 53.387466][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 53.388898][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 53.390281][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 53.391690][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 53.392983][ T4936] Call trace: [ 53.393566][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 53.394718][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 53.395599][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 53.396636][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 53.397648][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 53.398608][ T4936] ext4_dirty_inode+0xd4/0x104 [ 53.399363][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 53.400285][ T4936] sync_lazytime+0x1a8/0x68c [ 53.401086][ T4936] iput+0x1cc/0xb90 [ 53.401727][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 53.402642][ T4936] __dentry_kill+0x170/0x5fc [ 53.403448][ T4936] shrink_kill+0xe8/0x318 [ 53.404185][ T4936] shrink_dentry_list+0x154/0x2a4 [ 53.405038][ T4936] shrink_dcache_tree+0x40c/0x570 [ 53.405959][ T4936] do_one_tree+0x24/0x58 [ 53.406675][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 53.407634][ T4936] generic_shutdown_super+0x70/0x2b8 [ 53.408548][ T4936] kill_block_super+0x44/0x90 [ 53.409297][ T4936] ext4_kill_sb+0x68/0xa4 [ 53.410095][ T4936] deactivate_locked_super+0xc4/0x140 [ 53.411022][ T4936] deactivate_super+0xd8/0xf8 [ 53.411827][ T4936] cleanup_mnt+0x328/0x3b8 [ 53.412590][ T4936] __cleanup_mnt+0x20/0x30 [ 53.413333][ T4936] task_work_run+0x1c4/0x254 [ 53.414116][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 53.415085][ T4936] el0_svc+0x18c/0x260 [ 53.415790][ T4936] el0t_64_sync_handler+0x48/0x148 [ 53.416651][ T4936] el0t_64_sync+0x198/0x19c [ 53.417414][ T4936] irq event stamp: 349690 [ 53.418114][ T4936] hardirqs last enabled at (349689): [] finish_task_switch+0x22c/0x768 [ 53.419782][ T4936] hardirqs last disabled at (349690): [] el1_brk64+0x20/0x54 [ 53.421287][ T4936] softirqs last enabled at (349616): [] do_sve_acc+0x32c/0x4b8 [ 53.422804][ T4936] softirqs last disabled at (349614): [] do_sve_acc+0x10c/0x4b8 [ 53.424377][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 53.474385][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 53.474499][ T4936] ------------[ cut here ]------------ [ 53.474503][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 53.480004][ T4936] Modules linked in: [ 53.480664][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 53.482475][ T4936] Tainted: [W]=WARN [ 53.483140][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.484870][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 53.486246][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 53.487395][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 53.488484][ T4936] sp : ffff80009b2f7060 [ 53.489184][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 53.490578][ T4936] x26: ffff0000e31c14e8 x25: ffff0000e31c1510 x24: ffff800088a09bc0 [ 53.491873][ T4936] x23: ffff0000dc9e2000 x22: 0000000000000381 x21: ffff0000dc9e2068 [ 53.493153][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 53.494478][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 53.495863][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 53.497203][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 53.498606][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 53.500027][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 53.501453][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 53.502817][ T4936] Call trace: [ 53.503340][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 53.504396][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 53.505234][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 53.506206][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 53.507100][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 53.507981][ T4936] ext4_dirty_inode+0xd4/0x104 [ 53.508787][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 53.509668][ T4936] sync_lazytime+0x1a8/0x68c [ 53.510492][ T4936] iput+0x1cc/0xb90 [ 53.511156][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 53.511966][ T4936] __dentry_kill+0x170/0x5fc [ 53.512719][ T4936] shrink_kill+0xe8/0x318 [ 53.513469][ T4936] shrink_dentry_list+0x154/0x2a4 [ 53.514274][ T4936] shrink_dcache_tree+0x40c/0x570 [ 53.515132][ T4936] do_one_tree+0x24/0x58 [ 53.515858][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 53.516762][ T4936] generic_shutdown_super+0x70/0x2b8 [ 53.517646][ T4936] kill_block_super+0x44/0x90 [ 53.518417][ T4936] ext4_kill_sb+0x68/0xa4 [ 53.519162][ T4936] deactivate_locked_super+0xc4/0x140 [ 53.520089][ T4936] deactivate_super+0xd8/0xf8 [ 53.520872][ T4936] cleanup_mnt+0x328/0x3b8 [ 53.521622][ T4936] __cleanup_mnt+0x20/0x30 [ 53.522377][ T4936] task_work_run+0x1c4/0x254 [ 53.523180][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 53.524071][ T4936] el0_svc+0x18c/0x260 [ 53.524741][ T4936] el0t_64_sync_handler+0x48/0x148 [ 53.525627][ T4936] el0t_64_sync+0x198/0x19c [ 53.526381][ T4936] irq event stamp: 356846 [ 53.527090][ T4936] hardirqs last enabled at (356845): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 53.528680][ T4936] hardirqs last disabled at (356846): [] el1_brk64+0x20/0x54 [ 53.530127][ T4936] softirqs last enabled at (356778): [] do_sve_acc+0x32c/0x4b8 [ 53.531612][ T4936] softirqs last disabled at (356776): [] do_sve_acc+0x10c/0x4b8 [ 53.533055][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 53.573021][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 53.573129][ T4936] ------------[ cut here ]------------ [ 53.573134][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 53.578371][ T4936] Modules linked in: [ 53.579033][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 53.580863][ T4936] Tainted: [W]=WARN [ 53.581485][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.583196][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 53.584550][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 53.585724][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 53.586850][ T4936] sp : ffff80009b2f7060 [ 53.587592][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 53.588866][ T4936] x26: ffff0000e32ba798 x25: ffff0000e32ba7c0 x24: ffff800088a09bc0 [ 53.590231][ T4936] x23: ffff0000c6d74000 x22: 0000000000000381 x21: ffff0000c6d74068 [ 53.591552][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 53.592961][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 53.594317][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 53.595741][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 53.597233][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 53.598570][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 53.600003][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 53.601388][ T4936] Call trace: [ 53.601980][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 53.603157][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 53.603980][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 53.604942][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 53.605866][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 53.606783][ T4936] ext4_dirty_inode+0xd4/0x104 [ 53.607572][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 53.608379][ T4936] sync_lazytime+0x1a8/0x68c [ 53.609105][ T4936] iput+0x1cc/0xb90 [ 53.609749][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 53.610566][ T4936] __dentry_kill+0x170/0x5fc [ 53.611373][ T4936] shrink_kill+0xe8/0x318 [ 53.612125][ T4936] shrink_dentry_list+0x154/0x2a4 [ 53.612947][ T4936] shrink_dcache_tree+0x40c/0x570 [ 53.613778][ T4936] do_one_tree+0x24/0x58 [ 53.614479][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 53.615381][ T4936] generic_shutdown_super+0x70/0x2b8 [ 53.616355][ T4936] kill_block_super+0x44/0x90 [ 53.617185][ T4936] ext4_kill_sb+0x68/0xa4 [ 53.617940][ T4936] deactivate_locked_super+0xc4/0x140 [ 53.618818][ T4936] deactivate_super+0xd8/0xf8 [ 53.619577][ T4936] cleanup_mnt+0x328/0x3b8 [ 53.620354][ T4936] __cleanup_mnt+0x20/0x30 [ 53.621095][ T4936] task_work_run+0x1c4/0x254 [ 53.621895][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 53.622815][ T4936] el0_svc+0x18c/0x260 [ 53.623519][ T4936] el0t_64_sync_handler+0x48/0x148 [ 53.624391][ T4936] el0t_64_sync+0x198/0x19c [ 53.625139][ T4936] irq event stamp: 362472 [ 53.625849][ T4936] hardirqs last enabled at (362471): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 53.627585][ T4936] hardirqs last disabled at (362472): [] el1_brk64+0x20/0x54 [ 53.628981][ T4936] softirqs last enabled at (362402): [] do_sve_acc+0x32c/0x4b8 [ 53.630452][ T4936] softirqs last disabled at (362400): [] do_sve_acc+0x10c/0x4b8 [ 53.631918][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 53.667534][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 53.667653][ T4936] ------------[ cut here ]------------ [ 53.667658][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 53.672937][ T4936] Modules linked in: [ 53.673586][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 53.675415][ T4936] Tainted: [W]=WARN [ 53.676031][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.677784][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 53.679107][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 53.680245][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 53.681383][ T4936] sp : ffff80009b2f7060 [ 53.682135][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 53.683483][ T4936] x26: ffff0000e31c5fa8 x25: ffff0000e31c5fd0 x24: ffff800088a09bc0 [ 53.684862][ T4936] x23: ffff0000c9adc000 x22: 0000000000000381 x21: ffff0000c9adc068 [ 53.686226][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 53.687645][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 53.689012][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 53.690466][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 53.691882][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 53.693244][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 53.694594][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 53.695862][ T4936] Call trace: [ 53.696386][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 53.697503][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 53.698421][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 53.699435][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 53.700426][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 53.701414][ T4936] ext4_dirty_inode+0xd4/0x104 [ 53.702222][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 53.703097][ T4936] sync_lazytime+0x1a8/0x68c [ 53.703907][ T4936] iput+0x1cc/0xb90 [ 53.704562][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 53.705443][ T4936] __dentry_kill+0x170/0x5fc [ 53.706209][ T4936] shrink_kill+0xe8/0x318 [ 53.706988][ T4936] shrink_dentry_list+0x154/0x2a4 [ 53.707904][ T4936] shrink_dcache_tree+0x40c/0x570 [ 53.708791][ T4936] do_one_tree+0x24/0x58 [ 53.709555][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 53.710516][ T4936] generic_shutdown_super+0x70/0x2b8 [ 53.711474][ T4936] kill_block_super+0x44/0x90 [ 53.712301][ T4936] ext4_kill_sb+0x68/0xa4 [ 53.713011][ T4936] deactivate_locked_super+0xc4/0x140 [ 53.713931][ T4936] deactivate_super+0xd8/0xf8 [ 53.714721][ T4936] cleanup_mnt+0x328/0x3b8 [ 53.715488][ T4936] __cleanup_mnt+0x20/0x30 [ 53.716247][ T4936] task_work_run+0x1c4/0x254 [ 53.717030][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 53.717993][ T4936] el0_svc+0x18c/0x260 [ 53.718677][ T4936] el0t_64_sync_handler+0x48/0x148 [ 53.719592][ T4936] el0t_64_sync+0x198/0x19c [ 53.720354][ T4936] irq event stamp: 368116 [ 53.721049][ T4936] hardirqs last enabled at (368115): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 53.722773][ T4936] hardirqs last disabled at (368116): [] el1_brk64+0x20/0x54 [ 53.724350][ T4936] softirqs last enabled at (368048): [] do_sve_acc+0x32c/0x4b8 [ 53.725971][ T4936] softirqs last disabled at (368046): [] do_sve_acc+0x10c/0x4b8 [ 53.727482][ T4936] ---[ end trace 0000000000000000 ]--- [ 53.774424][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 53.776622][ T4936] ------------[ cut here ]------------ [ 53.776629][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 53.779558][ T4936] Modules linked in: [ 53.780234][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 53.782166][ T4936] Tainted: [W]=WARN [ 53.782821][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.784482][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 53.785893][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 53.787078][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 53.788220][ T4936] sp : ffff80009b2f7060 [ 53.788953][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 53.790400][ T4936] x26: ffff0000e31c1e40 x25: ffff0000e31c1e68 x24: ffff800088a09bc0 [ 53.791811][ T4936] x23: ffff0000c7eb0000 x22: 0000000000000381 x21: ffff0000c7eb0068 [ 53.793243][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 53.794634][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 53.796015][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 53.797483][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 53.798931][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 53.800324][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 53.801716][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 53.803050][ T4936] Call trace: [ 53.803635][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 53.804761][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 53.805681][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 53.806655][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 53.807645][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 53.808605][ T4936] ext4_dirty_inode+0xd4/0x104 [ 53.809436][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 53.810354][ T4936] sync_lazytime+0x1a8/0x68c [ 53.811218][ T4936] iput+0x1cc/0xb90 [ 53.811902][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 53.812849][ T4936] __dentry_kill+0x170/0x5fc [ 53.813606][ T4936] shrink_kill+0xe8/0x318 [ 53.814335][ T4936] shrink_dentry_list+0x154/0x2a4 [ 53.815193][ T4936] shrink_dcache_tree+0x40c/0x570 [ 53.816076][ T4936] do_one_tree+0x24/0x58 [ 53.816814][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 53.817763][ T4936] generic_shutdown_super+0x70/0x2b8 [ 53.818755][ T4936] kill_block_super+0x44/0x90 [ 53.819535][ T4936] ext4_kill_sb+0x68/0xa4 [ 53.820201][ T4936] deactivate_locked_super+0xc4/0x140 [ 53.821027][ T4936] deactivate_super+0xd8/0xf8 [ 53.821829][ T4936] cleanup_mnt+0x328/0x3b8 [ 53.822600][ T4936] __cleanup_mnt+0x20/0x30 [ 53.823362][ T4936] task_work_run+0x1c4/0x254 [ 53.824122][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 53.825023][ T4936] el0_svc+0x18c/0x260 [ 53.825701][ T4936] el0t_64_sync_handler+0x48/0x148 [ 53.826599][ T4936] el0t_64_sync+0x198/0x19c [ 53.827381][ T4936] irq event stamp: 374058 [ 53.828131][ T4936] hardirqs last enabled at (374057): [] finish_task_switch+0x22c/0x768 [ 53.829903][ T4936] hardirqs last disabled at (374058): [] el1_brk64+0x20/0x54 [ 53.831472][ T4936] softirqs last enabled at (373982): [] do_sve_acc+0x32c/0x4b8 [ 53.833172][ T4936] softirqs last disabled at (373980): [] do_sve_acc+0x10c/0x4b8 [ 53.834803][ T4936] ---[ end trace 0000000000000000 ]--- [ 53.864222][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 53.866389][ T4936] ------------[ cut here ]------------ [ 53.866397][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 53.869215][ T4936] Modules linked in: [ 53.869906][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 53.871727][ T4936] Tainted: [W]=WARN [ 53.872417][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.874132][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 53.875482][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 53.876607][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 53.877716][ T4936] sp : ffff80009b2f7060 [ 53.878399][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 53.879813][ T4936] x26: ffff0000e32f1e40 x25: ffff0000e32f1e68 x24: ffff800088a09bc0 [ 53.881240][ T4936] x23: ffff0000c7a02000 x22: 0000000000000381 x21: ffff0000c7a02068 [ 53.882628][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 53.883968][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 53.885330][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 53.886718][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 53.888121][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 53.889599][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 53.890960][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 53.892324][ T4936] Call trace: [ 53.892914][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 53.894049][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 53.894952][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 53.895997][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 53.896944][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 53.897915][ T4936] ext4_dirty_inode+0xd4/0x104 [ 53.898704][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 53.899540][ T4936] sync_lazytime+0x1a8/0x68c [ 53.900310][ T4936] iput+0x1cc/0xb90 [ 53.901024][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 53.901912][ T4936] __dentry_kill+0x170/0x5fc [ 53.902725][ T4936] shrink_kill+0xe8/0x318 [ 53.903491][ T4936] shrink_dentry_list+0x154/0x2a4 [ 53.904340][ T4936] shrink_dcache_tree+0x40c/0x570 [ 53.905217][ T4936] do_one_tree+0x24/0x58 [ 53.905964][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 53.906937][ T4936] generic_shutdown_super+0x70/0x2b8 [ 53.907872][ T4936] kill_block_super+0x44/0x90 [ 53.908689][ T4936] ext4_kill_sb+0x68/0xa4 [ 53.909472][ T4936] deactivate_locked_super+0xc4/0x140 [ 53.910435][ T4936] deactivate_super+0xd8/0xf8 [ 53.911254][ T4936] cleanup_mnt+0x328/0x3b8 [ 53.912036][ T4936] __cleanup_mnt+0x20/0x30 [ 53.912867][ T4936] task_work_run+0x1c4/0x254 [ 53.913677][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 53.914631][ T4936] el0_svc+0x18c/0x260 [ 53.915378][ T4936] el0t_64_sync_handler+0x48/0x148 [ 53.916224][ T4936] el0t_64_sync+0x198/0x19c [ 53.917030][ T4936] irq event stamp: 380062 [ 53.917766][ T4936] hardirqs last enabled at (380061): [] finish_task_switch+0x22c/0x768 [ 53.919428][ T4936] hardirqs last disabled at (380062): [] el1_brk64+0x20/0x54 [ 53.920908][ T4936] softirqs last enabled at (379988): [] do_sve_acc+0x32c/0x4b8 [ 53.922432][ T4936] softirqs last disabled at (379986): [] do_sve_acc+0x10c/0x4b8 [ 53.923995][ T4936] ---[ end trace 0000000000000000 ]--- 1970/01/01 00:00:53 executed programs: 42 [ 5 ** replaying previous printk message ** [ 53.974296][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 53.974419][ T4936] ------------[ cut here ]------------ [ 53.974424][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 53.979990][ T4936] Modules linked in: [ 53.980674][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 53.982570][ T4936] Tainted: [W]=WARN [ 53.983252][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 53.985065][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 53.986377][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 53.987462][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 53.988537][ T4936] sp : ffff80009b2f7060 [ 53.989195][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 53.990516][ T4936] x26: ffff0000e32c5650 x25: ffff0000e32c5678 x24: ffff800088a09bc0 [ 53.991965][ T4936] x23: ffff0000ca296000 x22: 0000000000000381 x21: ffff0000ca296068 [ 53.993371][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 00000000ffffffff [ 53.994772][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 53.996202][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 53.997682][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 53.998979][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 54.000427][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 54.001877][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 54.003333][ T4936] Call trace: [ 54.003922][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 54.005083][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 54.005990][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 54.006988][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 54.007983][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 54.008899][ T4936] ext4_dirty_inode+0xd4/0x104 [ 54.009664][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 54.010505][ T4936] sync_lazytime+0x1a8/0x68c [ 54.011265][ T4936] iput+0x1cc/0xb90 [ 54.011919][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 54.012753][ T4936] __dentry_kill+0x170/0x5fc [ 54.013505][ T4936] shrink_kill+0xe8/0x318 [ 54.014186][ T4936] shrink_dentry_list+0x154/0x2a4 [ 54.015055][ T4936] shrink_dcache_tree+0x40c/0x570 [ 54.015861][ T4936] do_one_tree+0x24/0x58 [ 54.016619][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 54.017531][ T4936] generic_shutdown_super+0x70/0x2b8 [ 54.018344][ T4936] kill_block_super+0x44/0x90 [ 54.019113][ T4936] ext4_kill_sb+0x68/0xa4 [ 54.019847][ T4936] deactivate_locked_super+0xc4/0x140 [ 54.020726][ T4936] deactivate_super+0xd8/0xf8 [ 54.021556][ T4936] cleanup_mnt+0x328/0x3b8 [ 54.022287][ T4936] __cleanup_mnt+0x20/0x30 [ 54.023055][ T4936] task_work_run+0x1c4/0x254 [ 54.023826][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 54.024713][ T4936] el0_svc+0x18c/0x260 [ 54.025370][ T4936] el0t_64_sync_handler+0x48/0x148 [ 54.026240][ T4936] el0t_64_sync+0x198/0x19c [ 54.027075][ T4936] irq event stamp: 386612 [ 54.027748][ T4936] hardirqs last enabled at (386611): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 54.029413][ T4936] hardirqs last disabled at (386612): [] el1_brk64+0x20/0x54 [ 54.030955][ T4936] softirqs last enabled at (386522): [] do_sve_acc+0x32c/0x4b8 [ 54.032466][ T4936] softirqs last disabled at (386520): [] do_sve_acc+0x10c/0x4b8 [ 54.033988][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 54.072548][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 54.072666][ T4936] ------------[ cut here ]------------ [ 54.072670][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 54.078174][ T4936] Modules linked in: [ 54.078826][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 54.080677][ T4936] Tainted: [W]=WARN [ 54.081349][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.083148][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 54.084478][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 54.085620][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 54.086689][ T4936] sp : ffff80009b2f7060 [ 54.087377][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 54.088793][ T4936] x26: ffff0000e32f7258 x25: ffff0000e32f7280 x24: ffff800088a09bc0 [ 54.090247][ T4936] x23: ffff0000c5c78000 x22: 0000000000000381 x21: ffff0000c5c78068 [ 54.091694][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 54.093026][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 54.094366][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 54.095774][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 54.097169][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 54.098654][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 54.100106][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 54.101588][ T4936] Call trace: [ 54.102114][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 54.103231][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 54.104121][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 54.105161][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 54.106181][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 54.107160][ T4936] ext4_dirty_inode+0xd4/0x104 [ 54.108020][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 54.108889][ T4936] sync_lazytime+0x1a8/0x68c [ 54.109653][ T4936] iput+0x1cc/0xb90 [ 54.110270][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 54.111106][ T4936] __dentry_kill+0x170/0x5fc [ 54.111879][ T4936] shrink_kill+0xe8/0x318 [ 54.112612][ T4936] shrink_dentry_list+0x154/0x2a4 [ 54.113485][ T4936] shrink_dcache_tree+0x40c/0x570 [ 54.114365][ T4936] do_one_tree+0x24/0x58 [ 54.115082][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 54.115995][ T4936] generic_shutdown_super+0x70/0x2b8 [ 54.116886][ T4936] kill_block_super+0x44/0x90 [ 54.117719][ T4936] ext4_kill_sb+0x68/0xa4 [ 54.118474][ T4936] deactivate_locked_super+0xc4/0x140 [ 54.119374][ T4936] deactivate_super+0xd8/0xf8 [ 54.120232][ T4936] cleanup_mnt+0x328/0x3b8 [ 54.120986][ T4936] __cleanup_mnt+0x20/0x30 [ 54.121778][ T4936] task_work_run+0x1c4/0x254 [ 54.122574][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 54.123459][ T4936] el0_svc+0x18c/0x260 [ 54.124171][ T4936] el0t_64_sync_handler+0x48/0x148 [ 54.125069][ T4936] el0t_64_sync+0x198/0x19c [ 54.125857][ T4936] irq event stamp: 392146 [ 54.126621][ T4936] hardirqs last enabled at (392145): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 54.128416][ T4936] hardirqs last disabled at (392146): [] el1_brk64+0x20/0x54 [ 54.130015][ T4936] softirqs last enabled at (392078): [] do_sve_acc+0x32c/0x4b8 [ 54.131608][ T4936] softirqs last disabled at (392076): [] do_sve_acc+0x10c/0x4b8 [ 54.133214][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 54.165526][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 54.165647][ T4936] ------------[ cut here ]------------ [ 54.165651][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 54.170982][ T4936] Modules linked in: [ 54.171680][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 54.173566][ T4936] Tainted: [W]=WARN [ 54.174200][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.175962][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 54.177287][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 54.178365][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 54.179476][ T4936] sp : ffff80009b2f7060 [ 54.180202][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 54.181584][ T4936] x26: ffff0000e32f8238 x25: ffff0000e32f8260 x24: ffff800088a09bc0 [ 54.182854][ T4936] x23: ffff0000ca7a0000 x22: 0000000000000381 x21: ffff0000ca7a0068 [ 54.184191][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 54.185511][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 54.186853][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 54.188269][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 54.189681][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 54.191112][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 54.192479][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 54.193809][ T4936] Call trace: [ 54.194347][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 54.195365][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 54.196267][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 54.197147][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 54.198062][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 54.198949][ T4936] ext4_dirty_inode+0xd4/0x104 [ 54.199716][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 54.200478][ T4936] sync_lazytime+0x1a8/0x68c [ 54.201313][ T4936] iput+0x1cc/0xb90 [ 54.201961][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 54.202818][ T4936] __dentry_kill+0x170/0x5fc [ 54.203677][ T4936] shrink_kill+0xe8/0x318 [ 54.204425][ T4936] shrink_dentry_list+0x154/0x2a4 [ 54.205260][ T4936] shrink_dcache_tree+0x40c/0x570 [ 54.206119][ T4936] do_one_tree+0x24/0x58 [ 54.206843][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 54.207839][ T4936] generic_shutdown_super+0x70/0x2b8 [ 54.208757][ T4936] kill_block_super+0x44/0x90 [ 54.209550][ T4936] ext4_kill_sb+0x68/0xa4 [ 54.210324][ T4936] deactivate_locked_super+0xc4/0x140 [ 54.211243][ T4936] deactivate_super+0xd8/0xf8 [ 54.212025][ T4936] cleanup_mnt+0x328/0x3b8 [ 54.212791][ T4936] __cleanup_mnt+0x20/0x30 [ 54.213594][ T4936] task_work_run+0x1c4/0x254 [ 54.214359][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 54.215228][ T4936] el0_svc+0x18c/0x260 [ 54.215883][ T4936] el0t_64_sync_handler+0x48/0x148 [ 54.216754][ T4936] el0t_64_sync+0x198/0x19c [ 54.217506][ T4936] irq event stamp: 397318 [ 54.218218][ T4936] hardirqs last enabled at (397317): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 54.219794][ T4936] hardirqs last disabled at (397318): [] el1_brk64+0x20/0x54 [ 54.221323][ T4936] softirqs last enabled at (397250): [] do_sve_acc+0x32c/0x4b8 [ 54.222791][ T4936] softirqs last disabled at (397248): [] do_sve_acc+0x10c/0x4b8 [ 54.224326][ T4936] ---[ end trace 0000000000000000 ]--- [ 54.258918][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when um ** replaying previous printk message ** [ 54.258918][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 54.260878][ T4936] ------------[ cut here ]------------ [ 54.260886][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 54.266053][ T4936] Modules linked in: [ 54.266716][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 54.268436][ T4936] Tainted: [W]=WARN [ 54.269100][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.270842][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 54.272226][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 54.273341][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 54.274489][ T4936] sp : ffff80009b2f7060 [ 54.275196][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 54.276543][ T4936] x26: ffff0000e32ca798 x25: ffff0000e32ca7c0 x24: ffff800088a09bc0 [ 54.277931][ T4936] x23: ffff0000cbc6c000 x22: 0000000000000381 x21: ffff0000cbc6c068 [ 54.279404][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 54.280802][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 [ 54.282249][ T4936] x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 [ 54.283672][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 54.285021][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 54.286330][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 54.287638][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 54.288901][ T4936] Call trace: [ 54.289413][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 54.290445][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 54.291359][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 54.292343][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 54.293320][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 54.294223][ T4936] ext4_dirty_inode+0xd4/0x104 [ 54.294996][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 54.295842][ T4936] sync_lazytime+0x1a8/0x68c [ 54.296591][ T4936] iput+0x1cc/0xb90 [ 54.297221][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 54.298075][ T4936] __dentry_kill+0x170/0x5fc [ 54.298890][ T4936] shrink_kill+0xe8/0x318 [ 54.299699][ T4936] shrink_dentry_list+0x154/0x2a4 [ 54.300597][ T4936] shrink_dcache_tree+0x40c/0x570 [ 54.301485][ T4936] do_one_tree+0x24/0x58 [ 54.302216][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 54.303182][ T4936] generic_shutdown_super+0x70/0x2b8 [ 54.304145][ T4936] kill_block_super+0x44/0x90 [ 54.304924][ T4936] ext4_kill_sb+0x68/0xa4 [ 54.305622][ T4936] deactivate_locked_super+0xc4/0x140 [ 54.306519][ T4936] deactivate_super+0xd8/0xf8 [ 54.307369][ T4936] cleanup_mnt+0x328/0x3b8 [ 54.308111][ T4936] __cleanup_mnt+0x20/0x30 [ 54.308848][ T4936] task_work_run+0x1c4/0x254 [ 54.309569][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 54.310514][ T4936] el0_svc+0x18c/0x260 [ 54.311211][ T4936] el0t_64_sync_handler+0x48/0x148 [ 54.312075][ T4936] el0t_64_sync+0x198/0x19c [ 54.312851][ T4936] irq event stamp: 403750 [ 54.313587][ T4936] hardirqs last enabled at (403749): [] finish_task_switch+0x22c/0x768 [ 54.315300][ T4936] hardirqs last disabled at (403750): [] el1_brk64+0x20/0x54 [ 54.316858][ T4936] softirqs last enabled at (403678): [] do_sve_acc+0x32c/0x4b8 [ 54.318440][ T4936] softirqs last disabled at (403676): [] do_sve_acc+0x10c/0x4b8 [ 54.319927][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 54.360428][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 54.360550][ T4936] ------------[ cut here ]------------ [ 54.360555][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 54.366038][ T4936] Modules linked in: [ 54.366713][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 54.368621][ T4936] Tainted: [W]=WARN [ 54.369290][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.371136][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 54.372528][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 54.373680][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 54.374769][ T4936] sp : ffff80009b2f7060 [ 54.375471][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 54.376804][ T4936] x26: ffff0000e3305fa8 x25: ffff0000e3305fd0 x24: ffff800088a09bc0 [ 54.378126][ T4936] x23: ffff0000cb512000 x22: 0000000000000381 x21: ffff0000cb512068 [ 54.379355][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 54.380676][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 54.382059][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 54.383456][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 54.384860][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 54.386289][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 54.387605][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 54.388952][ T4936] Call trace: [ 54.389502][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 54.390613][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 54.391473][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 54.392523][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 54.393403][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 54.394347][ T4936] ext4_dirty_inode+0xd4/0x104 [ 54.395176][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 54.396030][ T4936] sync_lazytime+0x1a8/0x68c [ 54.396776][ T4936] iput+0x1cc/0xb90 [ 54.397464][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 54.398328][ T4936] __dentry_kill+0x170/0x5fc [ 54.399124][ T4936] shrink_kill+0xe8/0x318 [ 54.399874][ T4936] shrink_dentry_list+0x154/0x2a4 [ 54.400731][ T4936] shrink_dcache_tree+0x40c/0x570 [ 54.401595][ T4936] do_one_tree+0x24/0x58 [ 54.402369][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 54.403305][ T4936] generic_shutdown_super+0x70/0x2b8 [ 54.404287][ T4936] kill_block_super+0x44/0x90 [ 54.405108][ T4936] ext4_kill_sb+0x68/0xa4 [ 54.405860][ T4936] deactivate_locked_super+0xc4/0x140 [ 54.406791][ T4936] deactivate_super+0xd8/0xf8 [ 54.407577][ T4936] cleanup_mnt+0x328/0x3b8 [ 54.408372][ T4936] __cleanup_mnt+0x20/0x30 [ 54.409168][ T4936] task_work_run+0x1c4/0x254 [ 54.410031][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 54.410914][ T4936] el0_svc+0x18c/0x260 [ 54.411638][ T4936] el0t_64_sync_handler+0x48/0x148 [ 54.412509][ T4936] el0t_64_sync+0x198/0x19c [ 54.413320][ T4936] irq event stamp: 409604 [ 54.414045][ T4936] hardirqs last enabled at (409603): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 54.415732][ T4936] hardirqs last disabled at (409604): [] el1_brk64+0x20/0x54 [ 54.417298][ T4936] softirqs last enabled at (409524): [] do_sve_acc+0x32c/0x4b8 [ 54.418808][ T4936] softirqs last disabled at (409522): [] do_sve_acc+0x10c/0x4b8 [ 54.420332][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 54.462229][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 54.462340][ T4936] ------------[ cut here ]------------ [ 54.462344][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 54.467546][ T4936] Modules linked in: [ 54.468143][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 54.469806][ T4936] Tainted: [W]=WARN [ 54.470400][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.472050][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 54.473352][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 54.474408][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 54.475425][ T4936] sp : ffff80009b2f7060 [ 54.476131][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 54.477538][ T4936] x26: ffff0000e3308238 x25: ffff0000e3308260 x24: ffff800088a09bc0 [ 54.478910][ T4936] x23: ffff0000dd86c000 x22: 0000000000000381 x21: ffff0000dd86c068 [ 54.480208][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 54.481606][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 54.482994][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 54.484394][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 54.485751][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 54.487055][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 54.488278][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 54.489594][ T4936] Call trace: [ 54.490132][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 54.491145][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 54.491983][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 54.492867][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 54.493740][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 54.494633][ T4936] ext4_dirty_inode+0xd4/0x104 [ 54.495371][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 54.496126][ T4936] sync_lazytime+0x1a8/0x68c [ 54.496805][ T4936] iput+0x1cc/0xb90 [ 54.497355][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 54.498122][ T4936] __dentry_kill+0x170/0x5fc [ 54.498819][ T4936] shrink_kill+0xe8/0x318 [ 54.499462][ T4936] shrink_dentry_list+0x154/0x2a4 [ 54.500212][ T4936] shrink_dcache_tree+0x40c/0x570 [ 54.500981][ T4936] do_one_tree+0x24/0x58 [ 54.501622][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 54.502427][ T4936] generic_shutdown_super+0x70/0x2b8 [ 54.503232][ T4936] kill_block_super+0x44/0x90 [ 54.503944][ T4936] ext4_kill_sb+0x68/0xa4 [ 54.504589][ T4936] deactivate_locked_super+0xc4/0x140 [ 54.505429][ T4936] deactivate_super+0xd8/0xf8 [ 54.506193][ T4936] cleanup_mnt+0x328/0x3b8 [ 54.506889][ T4936] __cleanup_mnt+0x20/0x30 [ 54.507613][ T4936] task_work_run+0x1c4/0x254 [ 54.508335][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 54.509203][ T4936] el0_svc+0x18c/0x260 [ 54.509870][ T4936] el0t_64_sync_handler+0x48/0x148 [ 54.510645][ T4936] el0t_64_sync+0x198/0x19c [ 54.511425][ T4936] irq event stamp: 415614 [ 54.512185][ T4936] hardirqs last enabled at (415613): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 54.513811][ T4936] hardirqs last disabled at (415614): [] el1_brk64+0x20/0x54 [ 54.515280][ T4936] softirqs last enabled at (415548): [] do_sve_acc+0x32c/0x4b8 [ 54.516715][ T4936] softirqs last disabled at (415546): [] do_sve_acc+0x10c/0x4b8 [ 54.518324][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 54.564887][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 54.565001][ T4936] ------------[ cut here ]------------ [ 54.565005][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 54.570271][ T4936] Modules linked in: [ 54.570924][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 54.572803][ T4936] Tainted: [W]=WARN [ 54.573450][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.575176][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 54.576576][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 54.577696][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 54.578843][ T4936] sp : ffff80009b2f7060 [ 54.579565][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 54.580979][ T4936] x26: ffff0000e3310238 x25: ffff0000e3310260 x24: ffff800088a09bc0 [ 54.582331][ T4936] x23: ffff0000cfc3e000 x22: 0000000000000381 x21: ffff0000cfc3e068 [ 54.583708][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 54.585087][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 54.586379][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 54.587710][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 54.589071][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 54.590381][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 54.591729][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 54.593095][ T4936] Call trace: [ 54.593675][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 54.594713][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 54.595647][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 54.596669][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 54.597674][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 54.598634][ T4936] ext4_dirty_inode+0xd4/0x104 [ 54.599483][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 54.600359][ T4936] sync_lazytime+0x1a8/0x68c [ 54.601133][ T4936] iput+0x1cc/0xb90 [ 54.601758][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 54.602594][ T4936] __dentry_kill+0x170/0x5fc [ 54.603316][ T4936] shrink_kill+0xe8/0x318 [ 54.603979][ T4936] shrink_dentry_list+0x154/0x2a4 [ 54.604734][ T4936] shrink_dcache_tree+0x40c/0x570 [ 54.605606][ T4936] do_one_tree+0x24/0x58 [ 54.606332][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 54.607244][ T4936] generic_shutdown_super+0x70/0x2b8 [ 54.608131][ T4936] kill_block_super+0x44/0x90 [ 54.608863][ T4936] ext4_kill_sb+0x68/0xa4 [ 54.609575][ T4936] deactivate_locked_super+0xc4/0x140 [ 54.610473][ T4936] deactivate_super+0xd8/0xf8 [ 54.611221][ T4936] cleanup_mnt+0x328/0x3b8 [ 54.611928][ T4936] __cleanup_mnt+0x20/0x30 [ 54.612614][ T4936] task_work_run+0x1c4/0x254 [ 54.613337][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 54.614217][ T4936] el0_svc+0x18c/0x260 [ 54.614828][ T4936] el0t_64_sync_handler+0x48/0x148 [ 54.615646][ T4936] el0t_64_sync+0x198/0x19c [ 54.616345][ T4936] irq event stamp: 421206 [ 54.617035][ T4936] hardirqs last enabled at (421205): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 54.618683][ T4936] hardirqs last disabled at (421206): [] el1_brk64+0x20/0x54 [ 54.620108][ T4936] softirqs last enabled at (421136): [] do_sve_acc+0x32c/0x4b8 [ 54.621777][ T4936] softirqs last disabled at (421134): [] do_sve_acc+0x10c/0x4b8 [ 54.623295][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 54.678374][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 54.678513][ T4936] ------------[ cut here ]------------ [ 54.678517][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 54.684265][ T4936] Modules linked in: [ 54.684971][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 54.686760][ T4936] Tainted: [W]=WARN [ 54.687408][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.689271][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 54.690615][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 54.691719][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 54.692882][ T4936] sp : ffff80009b2f7060 [ 54.693611][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 54.694939][ T4936] x26: ffff0000e3318b90 x25: ffff0000e3318bb8 x24: ffff800088a09bc0 [ 54.696215][ T4936] x23: ffff0000d2f2a000 x22: 0000000000000381 x21: ffff0000d2f2a068 [ 54.697657][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 54.699044][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 54.700396][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 54.701808][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 54.703087][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 54.704429][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 54.705821][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 54.707194][ T4936] Call trace: [ 54.707736][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 54.708832][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 54.709715][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 54.710646][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 54.711611][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 54.712555][ T4936] ext4_dirty_inode+0xd4/0x104 [ 54.713391][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 54.714239][ T4936] sync_lazytime+0x1a8/0x68c [ 54.714985][ T4936] iput+0x1cc/0xb90 [ 54.715623][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 54.716483][ T4936] __dentry_kill+0x170/0x5fc [ 54.717269][ T4936] shrink_kill+0xe8/0x318 [ 54.718024][ T4936] shrink_dentry_list+0x154/0x2a4 [ 54.718940][ T4936] shrink_dcache_tree+0x40c/0x570 [ 54.719826][ T4936] do_one_tree+0x24/0x58 [ 54.720504][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 54.721396][ T4936] generic_shutdown_super+0x70/0x2b8 [ 54.722305][ T4936] kill_block_super+0x44/0x90 [ 54.723110][ T4936] ext4_kill_sb+0x68/0xa4 [ 54.723834][ T4936] deactivate_locked_super+0xc4/0x140 [ 54.724736][ T4936] deactivate_super+0xd8/0xf8 [ 54.725566][ T4936] cleanup_mnt+0x328/0x3b8 [ 54.726350][ T4936] __cleanup_mnt+0x20/0x30 [ 54.727081][ T4936] task_work_run+0x1c4/0x254 [ 54.727928][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 54.728908][ T4936] el0_svc+0x18c/0x260 [ 54.729616][ T4936] el0t_64_sync_handler+0x48/0x148 [ 54.730467][ T4936] el0t_64_sync+0x198/0x19c [ 54.731247][ T4936] irq event stamp: 427388 [ 54.731942][ T4936] hardirqs last enabled at (427387): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 54.733657][ T4936] hardirqs last disabled at (427388): [] el1_brk64+0x20/0x54 [ 54.735211][ T4936] softirqs last enabled at (427322): [] do_sve_acc+0x32c/0x4b8 [ 54.736739][ T4936] softirqs last disabled at (427320): [] do_sve_acc+0x10c/0x4b8 [ 54.738309][ T4936] ---[ end trace 0000000000000000 ]--- [ 54.755220][ T5340] set_capacity_and_notify: 39 callbacks suppressed [ 54.755839][ T5340] loop0: detected capacity change from 0 to 1024 [ ** replaying previous printk message ** [ 54.782024][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 54.782138][ T4936] ------------[ cut here ]------------ [ 54.782142][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 54.787522][ T4936] Modules linked in: [ 54.788141][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 54.789849][ T4936] Tainted: [W]=WARN [ 54.790505][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.792258][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 54.793593][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 54.794767][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 54.795873][ T4936] sp : ffff80009b2f7060 [ 54.796535][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 54.797912][ T4936] x26: ffff0000e32443a0 x25: ffff0000e32443c8 x24: ffff800088a09bc0 [ 54.799309][ T4936] x23: ffff0000cc3c6000 x22: 0000000000000381 x21: ffff0000cc3c6068 [ 54.800680][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 54.801997][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 54.803350][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 54.804686][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 54.805965][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 54.807299][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 54.808597][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 54.809910][ T4936] Call trace: [ 54.810457][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 54.811607][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 54.812563][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 54.813570][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 54.814512][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 54.815474][ T4936] ext4_dirty_inode+0xd4/0x104 [ 54.816304][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 54.817187][ T4936] sync_lazytime+0x1a8/0x68c [ 54.818004][ T4936] iput+0x1cc/0xb90 [ 54.818644][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 54.819510][ T4936] __dentry_kill+0x170/0x5fc [ 54.820299][ T4936] shrink_kill+0xe8/0x318 [ 54.821014][ T4936] shrink_dentry_list+0x154/0x2a4 [ 54.821841][ T4936] shrink_dcache_tree+0x40c/0x570 [ 54.822702][ T4936] do_one_tree+0x24/0x58 [ 54.823401][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 54.824324][ T4936] generic_shutdown_super+0x70/0x2b8 [ 54.825217][ T4936] kill_block_super+0x44/0x90 [ 54.825966][ T4936] ext4_kill_sb+0x68/0xa4 [ 54.826717][ T4936] deactivate_locked_super+0xc4/0x140 [ 54.827590][ T4936] deactivate_super+0xd8/0xf8 [ 54.828441][ T4936] cleanup_mnt+0x328/0x3b8 [ 54.829250][ T4936] __cleanup_mnt+0x20/0x30 [ 54.830056][ T4936] task_work_run+0x1c4/0x254 [ 54.830881][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 54.831810][ T4936] el0_svc+0x18c/0x260 [ 54.832506][ T4936] el0t_64_sync_handler+0x48/0x148 [ 54.833392][ T4936] el0t_64_sync+0x198/0x19c [ 54.834221][ T4936] irq event stamp: 434216 [ 54.835011][ T4936] hardirqs last enabled at (434215): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 54.836733][ T4936] hardirqs last disabled at (434216): [] el1_brk64+0x20/0x54 [ 54.838261][ T4936] softirqs last enabled at (434142): [] do_sve_acc+0x32c/0x4b8 [ 54.839789][ T4936] softirqs last disabled at (434140): [] do_sve_acc+0x10c/0x4b8 [ 54.841373][ T4936] ---[ end trace 0000000000000000 ]--- [ 54.864455][ T5344] loop0: detected capacity change from 0 to 1024 [ 5 ** replaying previous printk message ** [ 54.886761][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 54.886880][ T4936] ------------[ cut here ]------------ [ 54.886885][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 54.892407][ T4936] Modules linked in: [ 54.893050][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 54.894880][ T4936] Tainted: [W]=WARN [ 54.895565][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.897328][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 54.898701][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 54.899820][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 54.900911][ T4936] sp : ffff80009b2f7060 [ 54.901664][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 54.903075][ T4936] x26: ffff0000e3190238 x25: ffff0000e3190260 x24: ffff800088a09bc0 [ 54.904451][ T4936] x23: ffff0000dc21a000 x22: 0000000000000381 x21: ffff0000dc21a068 [ 54.905858][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 54.907208][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 54.908592][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 54.909974][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 54.911311][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 54.912681][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 54.914008][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 54.915407][ T4936] Call trace: [ 54.915942][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 54.916994][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 54.917896][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 54.918960][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 54.919921][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 54.920884][ T4936] ext4_dirty_inode+0xd4/0x104 [ 54.921763][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 54.922682][ T4936] sync_lazytime+0x1a8/0x68c [ 54.923369][ T4936] iput+0x1cc/0xb90 [ 54.923992][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 54.924918][ T4936] __dentry_kill+0x170/0x5fc [ 54.925720][ T4936] shrink_kill+0xe8/0x318 [ 54.926440][ T4936] shrink_dentry_list+0x154/0x2a4 [ 54.927342][ T4936] shrink_dcache_tree+0x40c/0x570 [ 54.928165][ T4936] do_one_tree+0x24/0x58 [ 54.928878][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 54.929841][ T4936] generic_shutdown_super+0x70/0x2b8 [ 54.930751][ T4936] kill_block_super+0x44/0x90 [ 54.931575][ T4936] ext4_kill_sb+0x68/0xa4 [ 54.932269][ T4936] deactivate_locked_super+0xc4/0x140 [ 54.933205][ T4936] deactivate_super+0xd8/0xf8 [ 54.934029][ T4936] cleanup_mnt+0x328/0x3b8 [ 54.934787][ T4936] __cleanup_mnt+0x20/0x30 [ 54.935560][ T4936] task_work_run+0x1c4/0x254 [ 54.936357][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 54.937298][ T4936] el0_svc+0x18c/0x260 [ 54.937973][ T4936] el0t_64_sync_handler+0x48/0x148 [ 54.938911][ T4936] el0t_64_sync+0x198/0x19c [ 54.939707][ T4936] irq event stamp: 441348 [ 54.940425][ T4936] hardirqs last enabled at (441347): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 54.942311][ T4936] hardirqs last disabled at (441348): [] el1_brk64+0x20/0x54 [ 54.943872][ T4936] softirqs last enabled at (441276): [] do_sve_acc+0x32c/0x4b8 [ 54.945369][ T4936] softirqs last disabled at (441274): [] do_sve_acc+0x10c/0x4b8 [ 54.946880][ T4936] ---[ end trace 0000000000000000 ]--- [ 54.965418][ T5348] loop0: detected capacity change from 0 to 1024 [ 54.997372][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 55.000192][ T4936] ------------[ cut here ]------------ [ 55.000200][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 55.003144][ T4936] Modules linked in: [ 55.003843][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 55.005708][ T4936] Tainted: [W]=WARN [ 55.006370][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.008102][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 55.009429][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 55.010623][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 55.011777][ T4936] sp : ffff80009b2f7060 [ 55.012508][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 55.013853][ T4936] x26: ffff0000e331dfa8 x25: ffff0000e331dfd0 x24: ffff800088a09bc0 [ 55.015324][ T4936] x23: ffff0000ced10000 x22: 0000000000000381 x21: ffff0000ced10068 [ 55.016759][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 55.018141][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 55.019549][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 55.020967][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 55.022352][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 55.023669][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 55.025076][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 55.026456][ T4936] Call trace: [ 55.027038][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 55.028200][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 55.029068][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 55.030120][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 55.031139][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 55.032081][ T4936] ext4_dirty_inode+0xd4/0x104 [ 55.032922][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 55.033893][ T4936] sync_lazytime+0x1a8/0x68c [ 55.034729][ T4936] iput+0x1cc/0xb90 [ 55.035432][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 55.036285][ T4936] __dentry_kill+0x170/0x5fc [ 55.037081][ T4936] shrink_kill+0xe8/0x318 [ 55.037837][ T4936] shrink_dentry_list+0x154/0x2a4 [ 55.038737][ T4936] shrink_dcache_tree+0x40c/0x570 [ 55.039664][ T4936] do_one_tree+0x24/0x58 [ 55.040420][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 55.041380][ T4936] generic_shutdown_super+0x70/0x2b8 [ 55.042279][ T4936] kill_block_super+0x44/0x90 [ 55.043070][ T4936] ext4_kill_sb+0x68/0xa4 [ 55.043791][ T4936] deactivate_locked_super+0xc4/0x140 [ 55.044740][ T4936] deactivate_super+0xd8/0xf8 [ 55.045580][ T4936] cleanup_mnt+0x328/0x3b8 [ 55.046374][ T4936] __cleanup_mnt+0x20/0x30 [ 55.047145][ T4936] task_work_run+0x1c4/0x254 [ 55.047948][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 55.048908][ T4936] el0_svc+0x18c/0x260 [ 55.049694][ T4936] el0t_64_sync_handler+0x48/0x148 [ 55.050614][ T4936] el0t_64_sync+0x198/0x19c [ 55.051374][ T4936] irq event stamp: 447654 [ 55.052124][ T4936] hardirqs last enabled at (447653): [] finish_task_switch+0x22c/0x768 [ 55.053884][ T4936] hardirqs last disabled at (447654): [] el1_brk64+0x20/0x54 [ 55.055400][ T4936] softirqs last enabled at (447576): [] do_sve_acc+0x32c/0x4b8 [ 55.057020][ T4936] softirqs last disabled at (447574): [] do_sve_acc+0x10c/0x4b8 [ 55.058636][ T4936] ---[ end trace 0000000000000000 ]--- [ 55.060248][ T4727] Bluetooth: hci0: command tx timeout [ 55.083789][ T5352] loop0: detected capacity change from 0 to 1024 [ 55.105700][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 55.107884][ T4936] ------------[ cut here ]------------ [ 55.107891][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 55.110764][ T4936] Modules linked in: [ 55.111421][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 55.113111][ T4936] Tainted: [W]=WARN [ 55.113793][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.115505][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 55.116823][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 55.117930][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 55.119000][ T4936] sp : ffff80009b2f7060 [ 55.119683][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 55.121078][ T4936] x26: ffff0000e3192798 x25: ffff0000e31927c0 x24: ffff800088a09bc0 [ 55.122422][ T4936] x23: ffff0000ca846000 x22: 0000000000000381 x21: ffff0000ca846068 [ 55.123842][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 55.125220][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 55.126467][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 55.127734][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 55.129042][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 55.130483][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 55.131911][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 55.133346][ T4936] Call trace: [ 55.133951][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 55.135132][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 55.136099][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 55.137145][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 55.138149][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 55.139113][ T4936] ext4_dirty_inode+0xd4/0x104 [ 55.139944][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 55.140829][ T4936] sync_lazytime+0x1a8/0x68c [ 55.141635][ T4936] iput+0x1cc/0xb90 [ 55.142310][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 55.143190][ T4936] __dentry_kill+0x170/0x5fc [ 55.144042][ T4936] shrink_kill+0xe8/0x318 [ 55.144835][ T4936] shrink_dentry_list+0x154/0x2a4 [ 55.145722][ T4936] shrink_dcache_tree+0x40c/0x570 [ 55.146554][ T4936] do_one_tree+0x24/0x58 [ 55.147270][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 55.148218][ T4936] generic_shutdown_super+0x70/0x2b8 [ 55.149120][ T4936] kill_block_super+0x44/0x90 [ 55.149926][ T4936] ext4_kill_sb+0x68/0xa4 [ 55.150605][ T4936] deactivate_locked_super+0xc4/0x140 [ 55.151473][ T4936] deactivate_super+0xd8/0xf8 [ 55.152306][ T4936] cleanup_mnt+0x328/0x3b8 [ 55.153074][ T4936] __cleanup_mnt+0x20/0x30 [ 55.153853][ T4936] task_work_run+0x1c4/0x254 [ 55.154675][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 55.155577][ T4936] el0_svc+0x18c/0x260 [ 55.156250][ T4936] el0t_64_sync_handler+0x48/0x148 [ 55.157159][ T4936] el0t_64_sync+0x198/0x19c [ 55.157928][ T4936] irq event stamp: 453436 [ 55.158672][ T4936] hardirqs last enabled at (453435): [] finish_task_switch+0x22c/0x768 [ 55.160491][ T4936] hardirqs last disabled at (453436): [] el1_brk64+0x20/0x54 [ 55.162073][ T4936] softirqs last enabled at (453362): [] do_sve_acc+0x32c/0x4b8 [ 55.163727][ T4936] softirqs last disabled at (453360): [] do_sve_acc+0x10c/0x4b8 [ 55.165377][ T4936] ---[ end trace 0000000000000000 ]--- [ 55.182784][ T5356] loop0: detected capacity change from 0 to 1024 [ 5 ** replaying previous printk message ** [ 55.200755][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 55.200867][ T4936] ------------[ cut here ]------------ [ 55.200871][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 55.206298][ T4936] Modules linked in: [ 55.206945][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 55.208669][ T4936] Tainted: [W]=WARN [ 55.209363][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.211142][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 55.212472][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 55.213606][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 55.214775][ T4936] sp : ffff80009b2f7060 [ 55.215488][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 55.216894][ T4936] x26: ffff0000dd14dfa8 x25: ffff0000dd14dfd0 x24: ffff800088a09bc0 [ 55.218306][ T4936] x23: ffff0000d08e8000 x22: 0000000000000381 x21: ffff0000d08e8068 [ 55.219695][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 55.221062][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 55.222434][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 55.223870][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 55.225076][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 55.226334][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 55.227648][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 55.229017][ T4936] Call trace: [ 55.229571][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 55.230743][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 55.231635][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 55.232649][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 55.233596][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 55.234517][ T4936] ext4_dirty_inode+0xd4/0x104 [ 55.235352][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 55.236263][ T4936] sync_lazytime+0x1a8/0x68c [ 55.237044][ T4936] iput+0x1cc/0xb90 [ 55.237706][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 55.238609][ T4936] __dentry_kill+0x170/0x5fc [ 55.239370][ T4936] shrink_kill+0xe8/0x318 [ 55.240144][ T4936] shrink_dentry_list+0x154/0x2a4 [ 55.241025][ T4936] shrink_dcache_tree+0x40c/0x570 [ 55.241835][ T4936] do_one_tree+0x24/0x58 [ 55.242541][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 55.243471][ T4936] generic_shutdown_super+0x70/0x2b8 [ 55.244387][ T4936] kill_block_super+0x44/0x90 [ 55.245179][ T4936] ext4_kill_sb+0x68/0xa4 [ 55.245909][ T4936] deactivate_locked_super+0xc4/0x140 [ 55.246789][ T4936] deactivate_super+0xd8/0xf8 [ 55.247622][ T4936] cleanup_mnt+0x328/0x3b8 [ 55.248365][ T4936] __cleanup_mnt+0x20/0x30 [ 55.249143][ T4936] task_work_run+0x1c4/0x254 [ 55.249947][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 55.250906][ T4936] el0_svc+0x18c/0x260 [ 55.251586][ T4936] el0t_64_sync_handler+0x48/0x148 [ 55.252548][ T4936] el0t_64_sync+0x198/0x19c [ 55.253320][ T4936] irq event stamp: 459434 [ 55.254066][ T4936] hardirqs last enabled at (459433): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 55.255864][ T4936] hardirqs last disabled at (459434): [] el1_brk64+0x20/0x54 [ 55.257364][ T4936] softirqs last enabled at (459366): [] do_sve_acc+0x32c/0x4b8 [ 55.258842][ T4936] softirqs last disabled at (459364): [] do_sve_acc+0x10c/0x4b8 [ 55.260514][ T4936] ---[ end trace 0000000000000000 ]--- [ 55.287411][ T5360] loop0: detected capacity change from 0 to 1024 [ 55.315079][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 55.317234][ T4936] ------------[ cut here ]------------ [ 55.317242][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 55.320102][ T4936] Modules linked in: [ 55.320825][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 55.322778][ T4936] Tainted: [W]=WARN [ 55.323365][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.325098][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 55.326434][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 55.327464][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 55.328613][ T4936] sp : ffff80009b2f7060 [ 55.329293][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 55.330567][ T4936] x26: ffff0000e3197258 x25: ffff0000e3197280 x24: ffff800088a09bc0 [ 55.331867][ T4936] x23: ffff0000cffa0000 x22: 0000000000000381 x21: ffff0000cffa0068 [ 55.333263][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 55.334623][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 55.336001][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 55.337401][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 55.338871][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 55.340246][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 55.341588][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 55.343044][ T4936] Call trace: [ 55.343604][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 55.344694][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 55.345630][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 55.346674][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 55.347629][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 55.348620][ T4936] ext4_dirty_inode+0xd4/0x104 [ 55.349445][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 55.350329][ T4936] sync_lazytime+0x1a8/0x68c [ 55.351166][ T4936] iput+0x1cc/0xb90 [ 55.351842][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 55.352765][ T4936] __dentry_kill+0x170/0x5fc [ 55.353607][ T4936] shrink_kill+0xe8/0x318 [ 55.354281][ T4936] shrink_dentry_list+0x154/0x2a4 [ 55.355108][ T4936] shrink_dcache_tree+0x40c/0x570 [ 55.355981][ T4936] do_one_tree+0x24/0x58 [ 55.356763][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 55.357754][ T4936] generic_shutdown_super+0x70/0x2b8 [ 55.358659][ T4936] kill_block_super+0x44/0x90 [ 55.359443][ T4936] ext4_kill_sb+0x68/0xa4 [ 55.360200][ T4936] deactivate_locked_super+0xc4/0x140 [ 55.361186][ T4936] deactivate_super+0xd8/0xf8 [ 55.362034][ T4936] cleanup_mnt+0x328/0x3b8 [ 55.362837][ T4936] __cleanup_mnt+0x20/0x30 [ 55.363573][ T4936] task_work_run+0x1c4/0x254 [ 55.364390][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 55.365311][ T4936] el0_svc+0x18c/0x260 [ 55.365999][ T4936] el0t_64_sync_handler+0x48/0x148 [ 55.366870][ T4936] el0t_64_sync+0x198/0x19c [ 55.367690][ T4936] irq event stamp: 465506 [ 55.368474][ T4936] hardirqs last enabled at (465505): [] finish_task_switch+0x22c/0x768 [ 55.370272][ T4936] hardirqs last disabled at (465506): [] el1_brk64+0x20/0x54 [ 55.371816][ T4936] softirqs last enabled at (465432): [] do_sve_acc+0x32c/0x4b8 [ 55.373355][ T4936] softirqs last disabled at (465430): [] do_sve_acc+0x10c/0x4b8 [ 55.375028][ T4936] ---[ end trace 0000000000000000 ]--- [ 55.390876][ T5364] loop0: detected capacity change from 0 to 1024 [ 55.424451][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 55.426677][ T4936] ------------[ cut here ]------------ [ 55.426685][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 55.429490][ T4936] Modules linked in: [ 55.430207][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 55.432123][ T4936] Tainted: [W]=WARN [ 55.432781][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.434520][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 55.435916][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 55.437142][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 55.438298][ T4936] sp : ffff80009b2f7060 [ 55.439022][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 55.440487][ T4936] x26: ffff0000e3187258 x25: ffff0000e3187280 x24: ffff800088a09bc0 [ 55.441832][ T4936] x23: ffff0000cf4fe000 x22: 0000000000000381 x21: ffff0000cf4fe068 [ 55.443177][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 55.444563][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 55.445972][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 55.447362][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 55.448794][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 55.450162][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 55.451591][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 55.453003][ T4936] Call trace: [ 55.453581][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 55.454702][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 55.455635][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 55.456724][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 55.457758][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 55.458754][ T4936] ext4_dirty_inode+0xd4/0x104 [ 55.459592][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 55.460533][ T4936] sync_lazytime+0x1a8/0x68c [ 55.461387][ T4936] iput+0x1cc/0xb90 [ 55.462060][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 55.462881][ T4936] __dentry_kill+0x170/0x5fc [ 55.463741][ T4936] shrink_kill+0xe8/0x318 [ 55.464508][ T4936] shrink_dentry_list+0x154/0x2a4 [ 55.465377][ T4936] shrink_dcache_tree+0x40c/0x570 [ 55.466296][ T4936] do_one_tree+0x24/0x58 [ 55.467068][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 55.468029][ T4936] generic_shutdown_super+0x70/0x2b8 [ 55.468909][ T4936] kill_block_super+0x44/0x90 [ 55.469724][ T4936] ext4_kill_sb+0x68/0xa4 [ 55.470494][ T4936] deactivate_locked_super+0xc4/0x140 [ 55.471449][ T4936] deactivate_super+0xd8/0xf8 [ 55.472287][ T4936] cleanup_mnt+0x328/0x3b8 [ 55.473125][ T4936] __cleanup_mnt+0x20/0x30 [ 55.473910][ T4936] task_work_run+0x1c4/0x254 [ 55.474724][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 55.475652][ T4936] el0_svc+0x18c/0x260 [ 55.476359][ T4936] el0t_64_sync_handler+0x48/0x148 [ 55.477244][ T4936] el0t_64_sync+0x198/0x19c [ 55.478023][ T4936] irq event stamp: 471258 [ 55.478784][ T4936] hardirqs last enabled at (471257): [] finish_task_switch+0x22c/0x768 [ 55.480489][ T4936] hardirqs last disabled at (471258): [] el1_brk64+0x20/0x54 [ 55.482120][ T4936] softirqs last enabled at (471188): [] do_sve_acc+0x32c/0x4b8 [ 55.483767][ T4936] softirqs last disabled at (471186): [] do_sve_acc+0x10c/0x4b8 [ 55.485433][ T4936] ---[ end trace 0000000000000000 ]--- [ 55.504928][ T5368] loop0: detected capacity change from 0 to 1024 [ 55.520904][ T4936] EXT4-fs warning (device loop0): ext4_xattr_i ** replaying previous printk message ** [ 55.520904][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 55.521999][ T4936] ------------[ cut here ]------------ [ 55.522007][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 55.527349][ T4936] Modules linked in: [ 55.528063][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 55.529947][ T4936] Tainted: [W]=WARN [ 55.530602][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.532359][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 55.533647][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 55.534806][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 55.535928][ T4936] sp : ffff80009b2f7060 [ 55.536685][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 55.538114][ T4936] x26: ffff0000e3253a48 x25: ffff0000e3253a70 x24: ffff800088a09bc0 [ 55.539584][ T4936] x23: ffff0000cfbfc000 x22: 0000000000000381 x21: ffff0000cfbfc068 [ 55.540992][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 55.542310][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 [ 55.543688][ T4936] x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 [ 55.545118][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 55.546428][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 55.547767][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 55.549158][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 55.550505][ T4936] Call trace: [ 55.551069][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 55.552192][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 55.553113][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 55.554123][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 55.555152][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 55.556102][ T4936] ext4_dirty_inode+0xd4/0x104 [ 55.556932][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 55.557906][ T4936] sync_lazytime+0x1a8/0x68c [ 55.558704][ T4936] iput+0x1cc/0xb90 [ 55.559377][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 55.560308][ T4936] __dentry_kill+0x170/0x5fc [ 55.561160][ T4936] shrink_kill+0xe8/0x318 [ 55.561936][ T4936] shrink_dentry_list+0x154/0x2a4 [ 55.562859][ T4936] shrink_dcache_tree+0x40c/0x570 [ 55.563721][ T4936] do_one_tree+0x24/0x58 [ 55.564441][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 55.565435][ T4936] generic_shutdown_super+0x70/0x2b8 [ 55.566360][ T4936] kill_block_super+0x44/0x90 [ 55.567218][ T4936] ext4_kill_sb+0x68/0xa4 [ 55.567956][ T4936] deactivate_locked_super+0xc4/0x140 [ 55.568827][ T4936] deactivate_super+0xd8/0xf8 [ 55.569586][ T4936] cleanup_mnt+0x328/0x3b8 [ 55.570390][ T4936] __cleanup_mnt+0x20/0x30 [ 55.571140][ T4936] task_work_run+0x1c4/0x254 [ 55.571871][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 55.572775][ T4936] el0_svc+0x18c/0x260 [ 55.573457][ T4936] el0t_64_sync_handler+0x48/0x148 [ 55.574311][ T4936] el0t_64_sync+0x198/0x19c [ 55.575040][ T4936] irq event stamp: 476630 [ 55.575738][ T4936] hardirqs last enabled at (476629): [] finish_task_switch+0x22c/0x768 [ 55.577375][ T4936] hardirqs last disabled at (476630): [] el1_brk64+0x20/0x54 [ 55.578968][ T4936] softirqs last enabled at (476560): [] do_sve_acc+0x32c/0x4b8 [ 55.580552][ T4936] softirqs last disabled at (476558): [] do_sve_acc+0x10c/0x4b8 [ 55.582189][ T4936] ---[ end trace 0000000000000000 ]--- [ 55.598602][ T5372] loop0: detected capacity change from 0 to 1024 [ 55.617709][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 55.620163][ T4936] ------------[ cut here ]------------ [ 55.620171][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 55.622986][ T4936] Modules linked in: [ 55.623631][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 55.625299][ T4936] Tainted: [W]=WARN [ 55.625896][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.627464][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 55.628767][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 55.629836][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 55.630921][ T4936] sp : ffff80009b2f7060 [ 55.631566][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 55.632795][ T4936] x26: ffff0000e3255fa8 x25: ffff0000e3255fd0 x24: ffff800088a09bc0 [ 55.634264][ T4936] x23: ffff0000d297e000 x22: 0000000000000381 x21: ffff0000d297e068 [ 55.635644][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 55.636985][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c [ 55.638331][ T4936] x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 [ 55.639586][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 55.640947][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 55.642315][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 55.643659][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 55.645027][ T4936] Call trace: [ 55.645574][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 55.646641][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 55.647520][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 55.648531][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 55.649479][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 55.650443][ T4936] ext4_dirty_inode+0xd4/0x104 [ 55.651331][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 55.652249][ T4936] sync_lazytime+0x1a8/0x68c [ 55.653009][ T4936] iput+0x1cc/0xb90 [ 55.653648][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 55.654560][ T4936] __dentry_kill+0x170/0x5fc [ 55.655358][ T4936] shrink_kill+0xe8/0x318 [ 55.656059][ T4936] shrink_dentry_list+0x154/0x2a4 [ 55.656866][ T4936] shrink_dcache_tree+0x40c/0x570 [ 55.657657][ T4936] do_one_tree+0x24/0x58 [ 55.658353][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 55.659321][ T4936] generic_shutdown_super+0x70/0x2b8 [ 55.660200][ T4936] kill_block_super+0x44/0x90 [ 55.660949][ T4936] ext4_kill_sb+0x68/0xa4 [ 55.661630][ T4936] deactivate_locked_super+0xc4/0x140 [ 55.662464][ T4936] deactivate_super+0xd8/0xf8 [ 55.663280][ T4936] cleanup_mnt+0x328/0x3b8 [ 55.664053][ T4936] __cleanup_mnt+0x20/0x30 [ 55.664820][ T4936] task_work_run+0x1c4/0x254 [ 55.665635][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 55.666686][ T4936] el0_svc+0x18c/0x260 [ 55.667373][ T4936] el0t_64_sync_handler+0x48/0x148 [ 55.668235][ T4936] el0t_64_sync+0x198/0x19c [ 55.669053][ T4936] irq event stamp: 482208 [ 55.669841][ T4936] hardirqs last enabled at (482207): [] finish_task_switch+0x22c/0x768 [ 55.671566][ T4936] hardirqs last disabled at (482208): [] el1_brk64+0x20/0x54 [ 55.673101][ T4936] softirqs last enabled at (482138): [] do_sve_acc+0x32c/0x4b8 [ 55.674674][ T4936] softirqs last disabled at (482136): [] do_sve_acc+0x10c/0x4b8 [ 55.676211][ T4936] ---[ end trace 0000000000000000 ]--- [ 55.695320][ T5376] loop0: detected capacity change from 0 to 1024 [ 55 ** replaying previous printk message ** [ 55.704352][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 55.704466][ T4936] ------------[ cut here ]------------ [ 55.704470][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 55.709823][ T4936] Modules linked in: [ 55.710537][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 55.712428][ T4936] Tainted: [W]=WARN [ 55.713037][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.714852][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 55.716249][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 55.717332][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 55.718475][ T4936] sp : ffff80009b2f7060 [ 55.719185][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 55.720544][ T4936] x26: ffff0000e324ba48 x25: ffff0000e324ba70 x24: ffff800088a09bc0 [ 55.721958][ T4936] x23: ffff0000d22ac000 x22: 0000000000000381 x21: ffff0000d22ac068 [ 55.723253][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 55.724510][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 55.725836][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 55.727077][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 55.728299][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 55.729705][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 55.731151][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 55.732557][ T4936] Call trace: [ 55.733155][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 55.734229][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 55.735113][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 55.736131][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 55.737064][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 55.737945][ T4936] ext4_dirty_inode+0xd4/0x104 [ 55.738706][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 55.739583][ T4936] sync_lazytime+0x1a8/0x68c [ 55.740374][ T4936] iput+0x1cc/0xb90 [ 55.741049][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 55.741929][ T4936] __dentry_kill+0x170/0x5fc [ 55.742699][ T4936] shrink_kill+0xe8/0x318 [ 55.743448][ T4936] shrink_dentry_list+0x154/0x2a4 [ 55.744259][ T4936] shrink_dcache_tree+0x40c/0x570 [ 55.745121][ T4936] do_one_tree+0x24/0x58 [ 55.745840][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 55.746733][ T4936] generic_shutdown_super+0x70/0x2b8 [ 55.747621][ T4936] kill_block_super+0x44/0x90 [ 55.748450][ T4936] ext4_kill_sb+0x68/0xa4 [ 55.749174][ T4936] deactivate_locked_super+0xc4/0x140 [ 55.750110][ T4936] deactivate_super+0xd8/0xf8 [ 55.750905][ T4936] cleanup_mnt+0x328/0x3b8 [ 55.751611][ T4936] __cleanup_mnt+0x20/0x30 [ 55.752326][ T4936] task_work_run+0x1c4/0x254 [ 55.753130][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 55.754013][ T4936] el0_svc+0x18c/0x260 [ 55.754728][ T4936] el0t_64_sync_handler+0x48/0x148 [ 55.755619][ T4936] el0t_64_sync+0x198/0x19c [ 55.756336][ T4936] irq event stamp: 487346 [ 55.757080][ T4936] hardirqs last enabled at (487345): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 55.758783][ T4936] hardirqs last disabled at (487346): [] el1_brk64+0x20/0x54 [ 55.760327][ T4936] softirqs last enabled at (487278): [] do_sve_acc+0x32c/0x4b8 [ 55.761898][ T4936] softirqs last disabled at (487276): [] do_sve_acc+0x10c/0x4b8 [ 55.763507][ T4936] ---[ end trace 0000000000000000 ]--- [ 55.801673][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 55.803944][ T4936] ------------[ cut here ]------------ [ 55.803952][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 55.806736][ T4936] Modules linked in: [ 55.807422][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 55.809311][ T4936] Tainted: [W]=WARN [ 55.809953][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.811724][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 55.813171][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 55.814335][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 55.815530][ T4936] sp : ffff80009b2f7060 [ 55.816251][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 55.817760][ T4936] x26: ffff0000e302ba48 x25: ffff0000e302ba70 x24: ffff800088a09bc0 [ 55.819149][ T4936] x23: ffff0000e38c6000 x22: 0000000000000381 x21: ffff0000e38c6068 [ 55.820557][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 55.821919][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 55.823299][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 55.824739][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 55.825959][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 55.827396][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 55.828694][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 55.829938][ T4936] Call trace: [ 55.830448][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 55.831497][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 55.832358][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 55.833310][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 55.834349][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 55.835299][ T4936] ext4_dirty_inode+0xd4/0x104 [ 55.836120][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 55.836982][ T4936] sync_lazytime+0x1a8/0x68c [ 55.837795][ T4936] iput+0x1cc/0xb90 [ 55.838456][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 55.839381][ T4936] __dentry_kill+0x170/0x5fc [ 55.840171][ T4936] shrink_kill+0xe8/0x318 [ 55.840933][ T4936] shrink_dentry_list+0x154/0x2a4 [ 55.841858][ T4936] shrink_dcache_tree+0x40c/0x570 [ 55.842725][ T4936] do_one_tree+0x24/0x58 [ 55.843433][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 55.844342][ T4936] generic_shutdown_super+0x70/0x2b8 [ 55.845295][ T4936] kill_block_super+0x44/0x90 [ 55.846088][ T4936] ext4_kill_sb+0x68/0xa4 [ 55.846860][ T4936] deactivate_locked_super+0xc4/0x140 [ 55.847778][ T4936] deactivate_super+0xd8/0xf8 [ 55.848627][ T4936] cleanup_mnt+0x328/0x3b8 [ 55.849427][ T4936] __cleanup_mnt+0x20/0x30 [ 55.850161][ T4936] task_work_run+0x1c4/0x254 [ 55.850969][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 55.851944][ T4936] el0_svc+0x18c/0x260 [ 55.852642][ T4936] el0t_64_sync_handler+0x48/0x148 [ 55.853472][ T4936] el0t_64_sync+0x198/0x19c [ 55.854248][ T4936] irq event stamp: 493550 [ 55.855006][ T4936] hardirqs last enabled at (493549): [] finish_task_switch+0x22c/0x768 [ 55.856634][ T4936] hardirqs last disabled at (493550): [] el1_brk64+0x20/0x54 [ 55.858171][ T4936] softirqs last enabled at (493476): [] do_sve_acc+0x32c/0x4b8 [ 55.859762][ T4936] softirqs last disabled at (493474): [] do_sve_acc+0x10c/0x4b8 [ 55.861424][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 55.891421][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 55.891537][ T4936] ------------[ cut here ]------------ [ 55.891542][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 55.897175][ T4936] Modules linked in: [ 55.897859][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 55.899873][ T4936] Tainted: [W]=WARN [ 55.900540][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 55.902304][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 55.903653][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 55.904758][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 55.905920][ T4936] sp : ffff80009b2f7060 [ 55.906613][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 55.907984][ T4936] x26: ffff0000e33e0238 x25: ffff0000e33e0260 x24: ffff800088a09bc0 [ 55.909393][ T4936] x23: ffff0000d0e7c000 x22: 0000000000000381 x21: ffff0000d0e7c068 [ 55.910835][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 55.912267][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 55.913739][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 55.915170][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 55.916707][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 55.918105][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 55.919524][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 55.920979][ T4936] Call trace: [ 55.921543][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 55.922720][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 55.923709][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 55.924771][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 55.925796][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 55.926782][ T4936] ext4_dirty_inode+0xd4/0x104 [ 55.927643][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 55.928556][ T4936] sync_lazytime+0x1a8/0x68c [ 55.929362][ T4936] iput+0x1cc/0xb90 [ 55.930034][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 55.930940][ T4936] __dentry_kill+0x170/0x5fc [ 55.931821][ T4936] shrink_kill+0xe8/0x318 [ 55.932589][ T4936] shrink_dentry_list+0x154/0x2a4 [ 55.933432][ T4936] shrink_dcache_tree+0x40c/0x570 [ 55.934236][ T4936] do_one_tree+0x24/0x58 [ 55.934944][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 55.935906][ T4936] generic_shutdown_super+0x70/0x2b8 [ 55.936817][ T4936] kill_block_super+0x44/0x90 [ 55.937657][ T4936] ext4_kill_sb+0x68/0xa4 [ 55.938435][ T4936] deactivate_locked_super+0xc4/0x140 [ 55.939446][ T4936] deactivate_super+0xd8/0xf8 [ 55.940286][ T4936] cleanup_mnt+0x328/0x3b8 [ 55.941063][ T4936] __cleanup_mnt+0x20/0x30 [ 55.941822][ T4936] task_work_run+0x1c4/0x254 [ 55.942595][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 55.943541][ T4936] el0_svc+0x18c/0x260 [ 55.944254][ T4936] el0t_64_sync_handler+0x48/0x148 [ 55.945160][ T4936] el0t_64_sync+0x198/0x19c [ 55.945964][ T4936] irq event stamp: 499492 [ 55.946693][ T4936] hardirqs last enabled at (499491): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 55.948507][ T4936] hardirqs last disabled at (499492): [] el1_brk64+0x20/0x54 [ 55.950083][ T4936] softirqs last enabled at (499422): [] do_sve_acc+0x32c/0x4b8 [ 55.951753][ T4936] softirqs last disabled at (499420): [] do_sve_acc+0x10c/0x4b8 [ 55.953350][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 55.990010][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 55.990124][ T4936] ------------[ cut here ]------------ [ 55.990128][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 55.995548][ T4936] Modules linked in: [ 55.996229][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 55.998147][ T4936] Tainted: [W]=WARN [ 55.998822][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.000484][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 56.001831][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 56.002981][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 56.004124][ T4936] sp : ffff80009b2f7060 [ 56.004804][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 56.006169][ T4936] x26: ffff0000e31ae900 x25: ffff0000e31ae928 x24: ffff800088a09bc0 [ 56.007472][ T4936] x23: ffff0000d7ac2000 x22: 0000000000000381 x21: ffff0000d7ac2068 [ 56.008859][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 56.010246][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 56.011582][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 56.012989][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 56.014343][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 56.015769][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 56.017187][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 56.018522][ T4936] Call trace: [ 56.019102][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 56.020252][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 56.021188][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 56.022187][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 56.023196][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 56.024128][ T4936] ext4_dirty_inode+0xd4/0x104 [ 56.024985][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 56.025897][ T4936] sync_lazytime+0x1a8/0x68c [ 56.026647][ T4936] iput+0x1cc/0xb90 [ 56.027278][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 56.028189][ T4936] __dentry_kill+0x170/0x5fc [ 56.028967][ T4936] shrink_kill+0xe8/0x318 [ 56.029740][ T4936] shrink_dentry_list+0x154/0x2a4 [ 56.030635][ T4936] shrink_dcache_tree+0x40c/0x570 [ 56.031521][ T4936] do_one_tree+0x24/0x58 [ 56.032220][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 56.033149][ T4936] generic_shutdown_super+0x70/0x2b8 [ 56.034018][ T4936] kill_block_super+0x44/0x90 [ 56.034840][ T4936] ext4_kill_sb+0x68/0xa4 [ 56.035645][ T4936] deactivate_locked_super+0xc4/0x140 [ 56.036624][ T4936] deactivate_super+0xd8/0xf8 [ 56.037467][ T4936] cleanup_mnt+0x328/0x3b8 [ 56.038320][ T4936] __cleanup_mnt+0x20/0x30 [ 56.039109][ T4936] task_work_run+0x1c4/0x254 [ 56.039933][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 56.040877][ T4936] el0_svc+0x18c/0x260 [ 56.041600][ T4936] el0t_64_sync_handler+0x48/0x148 [ 56.042511][ T4936] el0t_64_sync+0x198/0x19c [ 56.043347][ T4936] irq event stamp: 505596 [ 56.044108][ T4936] hardirqs last enabled at (505595): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 56.045907][ T4936] hardirqs last disabled at (505596): [] el1_brk64+0x20/0x54 [ 56.047507][ T4936] softirqs last enabled at (505528): [] do_sve_acc+0x32c/0x4b8 [ 56.049011][ T4936] softirqs last disabled at (505526): [] do_sve_acc+0x10c/0x4b8 [ 56.050618][ T4936] ---[ end trace 0000000000000000 ]--- [ 56 ** replaying previous printk message ** [ 56.090806][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 56.090947][ T4936] ------------[ cut here ]------------ [ 56.090951][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 56.096518][ T4936] Modules linked in: [ 56.097237][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 56.099024][ T4936] Tainted: [W]=WARN [ 56.099680][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.101396][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 56.102819][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 56.103965][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 56.105104][ T4936] sp : ffff80009b2f7060 [ 56.105843][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 56.107194][ T4936] x26: ffff0000e33e2798 x25: ffff0000e33e27c0 x24: ffff800088a09bc0 [ 56.108511][ T4936] x23: ffff0000d40e8000 x22: 0000000000000381 x21: ffff0000d40e8068 [ 56.109892][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 56.111344][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 56.112766][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 56.114163][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 56.115568][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 56.116939][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 56.118424][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 56.119773][ T4936] Call trace: [ 56.120345][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 56.121460][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 56.122388][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 56.123426][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 56.124335][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 56.125328][ T4936] ext4_dirty_inode+0xd4/0x104 [ 56.126142][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 56.127055][ T4936] sync_lazytime+0x1a8/0x68c [ 56.127902][ T4936] iput+0x1cc/0xb90 [ 56.128594][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 56.129497][ T4936] __dentry_kill+0x170/0x5fc [ 56.130332][ T4936] shrink_kill+0xe8/0x318 [ 56.131103][ T4936] shrink_dentry_list+0x154/0x2a4 [ 56.131950][ T4936] shrink_dcache_tree+0x40c/0x570 [ 56.132840][ T4936] do_one_tree+0x24/0x58 [ 56.133623][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 56.134566][ T4936] generic_shutdown_super+0x70/0x2b8 [ 56.135509][ T4936] kill_block_super+0x44/0x90 [ 56.136357][ T4936] ext4_kill_sb+0x68/0xa4 [ 56.137121][ T4936] deactivate_locked_super+0xc4/0x140 [ 56.138053][ T4936] deactivate_super+0xd8/0xf8 [ 56.138842][ T4936] cleanup_mnt+0x328/0x3b8 [ 56.139556][ T4936] __cleanup_mnt+0x20/0x30 [ 56.140286][ T4936] task_work_run+0x1c4/0x254 [ 56.141120][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 56.142058][ T4936] el0_svc+0x18c/0x260 [ 56.142755][ T4936] el0t_64_sync_handler+0x48/0x148 [ 56.143680][ T4936] el0t_64_sync+0x198/0x19c [ 56.144480][ T4936] irq event stamp: 510990 [ 56.145246][ T4936] hardirqs last enabled at (510989): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 56.147003][ T4936] hardirqs last disabled at (510990): [] el1_brk64+0x20/0x54 [ 56.148516][ T4936] softirqs last enabled at (510918): [] do_sve_acc+0x32c/0x4b8 [ 56.150157][ T4936] softirqs last disabled at (510916): [] do_sve_acc+0x10c/0x4b8 [ 56.151851][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 56.205307][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 56.205427][ T4936] ------------[ cut here ]------------ [ 56.205431][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 56.211213][ T4936] Modules linked in: [ 56.211872][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 56.213800][ T4936] Tainted: [W]=WARN [ 56.214444][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.216245][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 56.217638][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 56.218791][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 56.219890][ T4936] sp : ffff80009b2f7060 [ 56.220609][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 56.221907][ T4936] x26: ffff0000e31bc3a0 x25: ffff0000e31bc3c8 x24: ffff800088a09bc0 [ 56.223289][ T4936] x23: ffff0000c6af2000 x22: 0000000000000381 x21: ffff0000c6af2068 [ 56.224591][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 56.226044][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 56.227466][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 56.228843][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 56.230275][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 56.231575][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 56.232867][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 56.234197][ T4936] Call trace: [ 56.234737][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 56.235862][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 56.236835][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 56.237926][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 56.238923][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 56.239850][ T4936] ext4_dirty_inode+0xd4/0x104 [ 56.240683][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 56.241563][ T4936] sync_lazytime+0x1a8/0x68c [ 56.242320][ T4936] iput+0x1cc/0xb90 [ 56.242969][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 56.243868][ T4936] __dentry_kill+0x170/0x5fc [ 56.244674][ T4936] shrink_kill+0xe8/0x318 [ 56.245443][ T4936] shrink_dentry_list+0x154/0x2a4 [ 56.246334][ T4936] shrink_dcache_tree+0x40c/0x570 [ 56.247235][ T4936] do_one_tree+0x24/0x58 [ 56.247965][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 56.248948][ T4936] generic_shutdown_super+0x70/0x2b8 [ 56.249932][ T4936] kill_block_super+0x44/0x90 [ 56.250785][ T4936] ext4_kill_sb+0x68/0xa4 [ 56.251565][ T4936] deactivate_locked_super+0xc4/0x140 [ 56.252490][ T4936] deactivate_super+0xd8/0xf8 [ 56.253297][ T4936] cleanup_mnt+0x328/0x3b8 [ 56.254079][ T4936] __cleanup_mnt+0x20/0x30 [ 56.254818][ T4936] task_work_run+0x1c4/0x254 [ 56.255598][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 56.256546][ T4936] el0_svc+0x18c/0x260 [ 56.257263][ T4936] el0t_64_sync_handler+0x48/0x148 [ 56.258198][ T4936] el0t_64_sync+0x198/0x19c [ 56.258934][ T4936] irq event stamp: 516982 [ 56.259650][ T4936] hardirqs last enabled at (516981): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 56.261455][ T4936] hardirqs last disabled at (516982): [] el1_brk64+0x20/0x54 [ 56.263081][ T4936] softirqs last enabled at (516916): [] do_sve_acc+0x32c/0x4b8 [ 56.264678][ T4936] softirqs last disabled at (516914): [] do_sve_acc+0x10c/0x4b8 [ 56.266236][ T4936] ---[ end trace 0000000000000000 ]--- [ 56.308321][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 56.310763][ T4936] ------------[ cut here ]------------ [ 56.310775][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 56.313514][ T4936] Modules linked in: [ 56.314133][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 56.315909][ T4936] Tainted: [W]=WARN [ 56.316529][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.318188][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 56.319513][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 56.320695][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 56.321865][ T4936] sp : ffff80009b2f7060 [ 56.322602][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 56.324048][ T4936] x26: ffff0000e31b2798 x25: ffff0000e31b27c0 x24: ffff800088a09bc0 [ 56.325393][ T4936] x23: ffff0000e39f6000 x22: 0000000000000381 x21: ffff0000e39f6068 [ 56.326859][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 56.328265][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 56.329635][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 56.330994][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 56.332399][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 56.333778][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 56.335164][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 56.336623][ T4936] Call trace: [ 56.337145][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 56.338242][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 56.339157][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 56.340118][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 56.341057][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 56.342074][ T4936] ext4_dirty_inode+0xd4/0x104 [ 56.342902][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 56.343822][ T4936] sync_lazytime+0x1a8/0x68c [ 56.344630][ T4936] iput+0x1cc/0xb90 [ 56.345328][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 56.346236][ T4936] __dentry_kill+0x170/0x5fc [ 56.347035][ T4936] shrink_kill+0xe8/0x318 [ 56.347812][ T4936] shrink_dentry_list+0x154/0x2a4 [ 56.348711][ T4936] shrink_dcache_tree+0x40c/0x570 [ 56.349538][ T4936] do_one_tree+0x24/0x58 [ 56.350259][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 56.351170][ T4936] generic_shutdown_super+0x70/0x2b8 [ 56.352123][ T4936] kill_block_super+0x44/0x90 [ 56.352919][ T4936] ext4_kill_sb+0x68/0xa4 [ 56.353669][ T4936] deactivate_locked_super+0xc4/0x140 [ 56.354640][ T4936] deactivate_super+0xd8/0xf8 [ 56.355478][ T4936] cleanup_mnt+0x328/0x3b8 [ 56.356275][ T4936] __cleanup_mnt+0x20/0x30 [ 56.357048][ T4936] task_work_run+0x1c4/0x254 [ 56.357851][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 56.358806][ T4936] el0_svc+0x18c/0x260 [ 56.359510][ T4936] el0t_64_sync_handler+0x48/0x148 [ 56.360366][ T4936] el0t_64_sync+0x198/0x19c [ 56.361110][ T4936] irq event stamp: 522454 [ 56.361817][ T4936] hardirqs last enabled at (522453): [] finish_task_switch+0x22c/0x768 [ 56.363507][ T4936] hardirqs last disabled at (522454): [] el1_brk64+0x20/0x54 [ 56.365101][ T4936] softirqs last enabled at (522380): [] do_sve_acc+0x32c/0x4b8 [ 56.366635][ T4936] softirqs last disabled at (522378): [] do_sve_acc+0x10c/0x4b8 [ 56.368270][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 56.411157][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 56.411280][ T4936] ------------[ cut here ]------------ [ 56.411284][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 56.416848][ T4936] Modules linked in: [ 56.417542][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 56.419398][ T4936] Tainted: [W]=WARN [ 56.420092][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.421901][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 56.423336][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 56.424522][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 56.425703][ T4936] sp : ffff80009b2f7060 [ 56.426450][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 56.427836][ T4936] x26: ffff0000e326c3a0 x25: ffff0000e326c3c8 x24: ffff800088a09bc0 [ 56.429261][ T4936] x23: ffff0000d4bb2000 x22: 0000000000000381 x21: ffff0000d4bb2068 [ 56.430681][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 56.432090][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 56.433502][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 56.434937][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 56.436353][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 56.437732][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 56.439140][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 56.440525][ T4936] Call trace: [ 56.441113][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 56.442263][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 56.443241][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 56.444254][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 56.445204][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 56.446200][ T4936] ext4_dirty_inode+0xd4/0x104 [ 56.447026][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 56.447967][ T4936] sync_lazytime+0x1a8/0x68c [ 56.448794][ T4936] iput+0x1cc/0xb90 [ 56.449426][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 56.450297][ T4936] __dentry_kill+0x170/0x5fc [ 56.451104][ T4936] shrink_kill+0xe8/0x318 [ 56.451841][ T4936] shrink_dentry_list+0x154/0x2a4 [ 56.452747][ T4936] shrink_dcache_tree+0x40c/0x570 [ 56.453607][ T4936] do_one_tree+0x24/0x58 [ 56.454393][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 56.455453][ T4936] generic_shutdown_super+0x70/0x2b8 [ 56.456403][ T4936] kill_block_super+0x44/0x90 [ 56.457150][ T4936] ext4_kill_sb+0x68/0xa4 [ 56.457890][ T4936] deactivate_locked_super+0xc4/0x140 [ 56.458839][ T4936] deactivate_super+0xd8/0xf8 [ 56.459682][ T4936] cleanup_mnt+0x328/0x3b8 [ 56.460461][ T4936] __cleanup_mnt+0x20/0x30 [ 56.461251][ T4936] task_work_run+0x1c4/0x254 [ 56.462020][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 56.462954][ T4936] el0_svc+0x18c/0x260 [ 56.463677][ T4936] el0t_64_sync_handler+0x48/0x148 [ 56.464561][ T4936] el0t_64_sync+0x198/0x19c [ 56.465361][ T4936] irq event stamp: 527858 [ 56.466101][ T4936] hardirqs last enabled at (527857): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 56.467918][ T4936] hardirqs last disabled at (527858): [] el1_brk64+0x20/0x54 [ 56.469463][ T4936] softirqs last enabled at (527790): [] do_sve_acc+0x32c/0x4b8 [ 56.471070][ T4936] softirqs last disabled at (527788): [] do_sve_acc+0x10c/0x4b8 [ 56.472672][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 56.515137][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 56.515262][ T4936] ------------[ cut here ]------------ [ 56.515267][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 56.520668][ T4936] Modules linked in: [ 56.521348][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 56.523272][ T4936] Tainted: [W]=WARN [ 56.523911][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.525642][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 56.527048][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 56.528169][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 56.529351][ T4936] sp : ffff80009b2f7060 [ 56.530101][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 56.531506][ T4936] x26: ffff0000e33eba48 x25: ffff0000e33eba70 x24: ffff800088a09bc0 [ 56.532893][ T4936] x23: ffff0000d56be000 x22: 0000000000000381 x21: ffff0000d56be068 [ 56.534307][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 56.535713][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 56.537115][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 56.538563][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 56.540013][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 56.541473][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 56.542897][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 56.544306][ T4936] Call trace: [ 56.544871][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 56.545956][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 56.546787][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 56.547708][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 56.548587][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 56.549517][ T4936] ext4_dirty_inode+0xd4/0x104 [ 56.550345][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 56.551256][ T4936] sync_lazytime+0x1a8/0x68c [ 56.552087][ T4936] iput+0x1cc/0xb90 [ 56.552766][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 56.553668][ T4936] __dentry_kill+0x170/0x5fc [ 56.554503][ T4936] shrink_kill+0xe8/0x318 [ 56.555282][ T4936] shrink_dentry_list+0x154/0x2a4 [ 56.556185][ T4936] shrink_dcache_tree+0x40c/0x570 [ 56.557062][ T4936] do_one_tree+0x24/0x58 [ 56.557847][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 56.558785][ T4936] generic_shutdown_super+0x70/0x2b8 [ 56.559655][ T4936] kill_block_super+0x44/0x90 [ 56.560498][ T4936] ext4_kill_sb+0x68/0xa4 [ 56.561259][ T4936] deactivate_locked_super+0xc4/0x140 [ 56.562144][ T4936] deactivate_super+0xd8/0xf8 [ 56.562897][ T4936] cleanup_mnt+0x328/0x3b8 [ 56.563615][ T4936] __cleanup_mnt+0x20/0x30 [ 56.564416][ T4936] task_work_run+0x1c4/0x254 [ 56.565233][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 56.566167][ T4936] el0_svc+0x18c/0x260 [ 56.566892][ T4936] el0t_64_sync_handler+0x48/0x148 [ 56.567792][ T4936] el0t_64_sync+0x198/0x19c [ 56.568575][ T4936] irq event stamp: 534570 [ 56.569323][ T4936] hardirqs last enabled at (534569): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 56.571303][ T4936] hardirqs last disabled at (534570): [] el1_brk64+0x20/0x54 [ 56.572948][ T4936] softirqs last enabled at (534502): [] do_sve_acc+0x32c/0x4b8 [ 56.574639][ T4936] softirqs last disabled at (534500): [] do_sve_acc+0x10c/0x4b8 [ 56.576305][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 56.604869][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 56.604988][ T4936] ------------[ cut here ]------------ [ 56.604993][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 56.610373][ T4936] Modules linked in: [ 56.611069][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 56.612926][ T4936] Tainted: [W]=WARN [ 56.613599][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.615379][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 56.616719][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 56.617852][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 56.618939][ T4936] sp : ffff80009b2f7060 [ 56.619622][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 56.621023][ T4936] x26: ffff0000e33ef258 x25: ffff0000e33ef280 x24: ffff800088a09bc0 [ 56.622457][ T4936] x23: ffff0000dddc8000 x22: 0000000000000381 x21: ffff0000dddc8068 [ 56.623897][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 56.625362][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 56.626705][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 56.628072][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 56.629466][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 56.630960][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 56.632405][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 56.633810][ T4936] Call trace: [ 56.634398][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 56.635544][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 56.636512][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 56.637568][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 56.638543][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 56.639467][ T4936] ext4_dirty_inode+0xd4/0x104 [ 56.640309][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 56.641193][ T4936] sync_lazytime+0x1a8/0x68c [ 56.641992][ T4936] iput+0x1cc/0xb90 [ 56.642679][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 56.643573][ T4936] __dentry_kill+0x170/0x5fc [ 56.644385][ T4936] shrink_kill+0xe8/0x318 [ 56.645163][ T4936] shrink_dentry_list+0x154/0x2a4 [ 56.646067][ T4936] shrink_dcache_tree+0x40c/0x570 [ 56.646977][ T4936] do_one_tree+0x24/0x58 [ 56.647714][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 56.648673][ T4936] generic_shutdown_super+0x70/0x2b8 [ 56.649657][ T4936] kill_block_super+0x44/0x90 [ 56.650477][ T4936] ext4_kill_sb+0x68/0xa4 [ 56.651213][ T4936] deactivate_locked_super+0xc4/0x140 [ 56.652122][ T4936] deactivate_super+0xd8/0xf8 [ 56.652961][ T4936] cleanup_mnt+0x328/0x3b8 [ 56.653713][ T4936] __cleanup_mnt+0x20/0x30 [ 56.654485][ T4936] task_work_run+0x1c4/0x254 [ 56.655317][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 56.656323][ T4936] el0_svc+0x18c/0x260 [ 56.657053][ T4936] el0t_64_sync_handler+0x48/0x148 [ 56.657928][ T4936] el0t_64_sync+0x198/0x19c [ 56.658733][ T4936] irq event stamp: 539662 [ 56.659501][ T4936] hardirqs last enabled at (539661): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 56.661319][ T4936] hardirqs last disabled at (539662): [] el1_brk64+0x20/0x54 [ 56.662878][ T4936] softirqs last enabled at (539586): [] do_sve_acc+0x32c/0x4b8 [ 56.664534][ T4936] softirqs last disabled at (539584): [] do_sve_acc+0x10c/0x4b8 [ 56.666109][ T4936] ---[ end trace 0000000000000000 ]--- [ 56.698096][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 56.700630][ T4936] ------------[ cut here ]------------ [ 56.700638][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 56.703352][ T4936] Modules linked in: [ 56.703990][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 56.705686][ T4936] Tainted: [W]=WARN [ 56.706351][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.708058][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 56.709347][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 56.710467][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 56.711577][ T4936] sp : ffff80009b2f7060 [ 56.712277][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 56.713648][ T4936] x26: ffff0000e32730f0 x25: ffff0000e3273118 x24: ffff800088a09bc0 [ 56.714969][ T4936] x23: ffff0000dc67a000 x22: 0000000000000381 x21: ffff0000dc67a068 [ 56.716348][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 56.717627][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c [ 56.719009][ T4936] x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 [ 56.720396][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 56.721817][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 56.723137][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 56.724422][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 56.725687][ T4936] Call trace: [ 56.726191][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 56.727302][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 56.728215][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 56.729248][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 56.730181][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 56.731109][ T4936] ext4_dirty_inode+0xd4/0x104 [ 56.731886][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 56.732716][ T4936] sync_lazytime+0x1a8/0x68c [ 56.733498][ T4936] iput+0x1cc/0xb90 [ 56.734176][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 56.735036][ T4936] __dentry_kill+0x170/0x5fc [ 56.735857][ T4936] shrink_kill+0xe8/0x318 [ 56.736577][ T4936] shrink_dentry_list+0x154/0x2a4 [ 56.737357][ T4936] shrink_dcache_tree+0x40c/0x570 [ 56.738217][ T4936] do_one_tree+0x24/0x58 [ 56.738875][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 56.739777][ T4936] generic_shutdown_super+0x70/0x2b8 [ 56.740634][ T4936] kill_block_super+0x44/0x90 [ 56.741441][ T4936] ext4_kill_sb+0x68/0xa4 [ 56.742160][ T4936] deactivate_locked_super+0xc4/0x140 [ 56.743021][ T4936] deactivate_super+0xd8/0xf8 [ 56.743776][ T4936] cleanup_mnt+0x328/0x3b8 [ 56.744516][ T4936] __cleanup_mnt+0x20/0x30 [ 56.745302][ T4936] task_work_run+0x1c4/0x254 [ 56.746115][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 56.747052][ T4936] el0_svc+0x18c/0x260 [ 56.747750][ T4936] el0t_64_sync_handler+0x48/0x148 [ 56.748627][ T4936] el0t_64_sync+0x198/0x19c [ 56.749387][ T4936] irq event stamp: 544936 [ 56.750158][ T4936] hardirqs last enabled at (544935): [] finish_task_switch+0x22c/0x768 [ 56.751823][ T4936] hardirqs last disabled at (544936): [] el1_brk64+0x20/0x54 [ 56.753323][ T4936] softirqs last enabled at (544866): [] do_sve_acc+0x32c/0x4b8 [ 56.754863][ T4936] softirqs last disabled at (544864): [] do_sve_acc+0x10c/0x4b8 [ 56.756393][ T4936] ---[ end trace 0000000000000000 ]--- [ 56.794495][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 56.796632][ T4936] ------------[ cut here ]------------ [ 56.796640][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 56.799402][ T4936] Modules linked in: [ 56.800103][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 56.801934][ T4936] Tainted: [W]=WARN [ 56.802566][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.804377][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 56.805721][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 56.806871][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 56.807979][ T4936] sp : ffff80009b2f7060 [ 56.808656][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 56.810043][ T4936] x26: ffff0000e3275fa8 x25: ffff0000e3275fd0 x24: ffff800088a09bc0 [ 56.811411][ T4936] x23: ffff0000de2da000 x22: 0000000000000381 x21: ffff0000de2da068 [ 56.812768][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 56.814005][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c [ 56.815278][ T4936] x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 [ 56.816612][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 56.817930][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 56.819293][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 56.820611][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 56.822007][ T4936] Call trace: [ 56.822563][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 56.823676][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 56.824620][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 56.825627][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 56.826563][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 56.827502][ T4936] ext4_dirty_inode+0xd4/0x104 [ 56.828267][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 56.829117][ T4936] sync_lazytime+0x1a8/0x68c [ 56.829857][ T4936] iput+0x1cc/0xb90 [ 56.830486][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 56.831358][ T4936] __dentry_kill+0x170/0x5fc [ 56.832120][ T4936] shrink_kill+0xe8/0x318 [ 56.832822][ T4936] shrink_dentry_list+0x154/0x2a4 [ 56.833585][ T4936] shrink_dcache_tree+0x40c/0x570 [ 56.834408][ T4936] do_one_tree+0x24/0x58 [ 56.835162][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 56.836104][ T4936] generic_shutdown_super+0x70/0x2b8 [ 56.836998][ T4936] kill_block_super+0x44/0x90 [ 56.837808][ T4936] ext4_kill_sb+0x68/0xa4 [ 56.838545][ T4936] deactivate_locked_super+0xc4/0x140 [ 56.839463][ T4936] deactivate_super+0xd8/0xf8 [ 56.840268][ T4936] cleanup_mnt+0x328/0x3b8 [ 56.840974][ T4936] __cleanup_mnt+0x20/0x30 [ 56.841777][ T4936] task_work_run+0x1c4/0x254 [ 56.842575][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 56.843417][ T4936] el0_svc+0x18c/0x260 [ 56.844114][ T4936] el0t_64_sync_handler+0x48/0x148 [ 56.844984][ T4936] el0t_64_sync+0x198/0x19c [ 56.845731][ T4936] irq event stamp: 550166 [ 56.846446][ T4936] hardirqs last enabled at (550165): [] finish_task_switch+0x22c/0x768 [ 56.848050][ T4936] hardirqs last disabled at (550166): [] el1_brk64+0x20/0x54 [ 56.849519][ T4936] softirqs last enabled at (550092): [] do_sve_acc+0x32c/0x4b8 [ 56.851041][ T4936] softirqs last disabled at (550090): [] do_sve_acc+0x10c/0x4b8 [ 56.852526][ T4936] ---[ end trace 0000000000000000 ]--- [ 56.903884][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 56.906102][ T4936] ------------[ cut here ]------------ [ 56.906109][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 56.908922][ T4936] Modules linked in: [ 56.909581][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 56.911392][ T4936] Tainted: [W]=WARN [ 56.912048][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.913881][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 56.915175][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 56.916316][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 56.917448][ T4936] sp : ffff80009b2f7060 [ 56.918125][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 56.919391][ T4936] x26: ffff0000dd130238 x25: ffff0000dd130260 x24: ffff800088a09bc0 [ 56.920738][ T4936] x23: ffff0000ddfe8000 x22: 0000000000000381 x21: ffff0000ddfe8068 [ 56.922023][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 56.923276][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c [ 56.924580][ T4936] x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 [ 56.925930][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 56.927280][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 56.928629][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 56.929948][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 56.931276][ T4936] Call trace: [ 56.931789][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 56.932907][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 56.933753][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 56.934664][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 56.935594][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 56.936518][ T4936] ext4_dirty_inode+0xd4/0x104 [ 56.937316][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 56.938159][ T4936] sync_lazytime+0x1a8/0x68c [ 56.938956][ T4936] iput+0x1cc/0xb90 [ 56.939597][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 56.940502][ T4936] __dentry_kill+0x170/0x5fc [ 56.941295][ T4936] shrink_kill+0xe8/0x318 [ 56.941978][ T4936] shrink_dentry_list+0x154/0x2a4 [ 56.942829][ T4936] shrink_dcache_tree+0x40c/0x570 [ 56.943661][ T4936] do_one_tree+0x24/0x58 [ 56.944366][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 56.945268][ T4936] generic_shutdown_super+0x70/0x2b8 [ 56.946130][ T4936] kill_block_super+0x44/0x90 [ 56.946946][ T4936] ext4_kill_sb+0x68/0xa4 [ 56.947690][ T4936] deactivate_locked_super+0xc4/0x140 [ 56.948593][ T4936] deactivate_super+0xd8/0xf8 [ 56.949364][ T4936] cleanup_mnt+0x328/0x3b8 [ 56.950102][ T4936] __cleanup_mnt+0x20/0x30 [ 56.950816][ T4936] task_work_run+0x1c4/0x254 [ 56.951584][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 56.952532][ T4936] el0_svc+0x18c/0x260 [ 56.953222][ T4936] el0t_64_sync_handler+0x48/0x148 [ 56.954064][ T4936] el0t_64_sync+0x198/0x19c [ 56.954837][ T4936] irq event stamp: 557088 [ 56.955557][ T4936] hardirqs last enabled at (557087): [] finish_task_switch+0x22c/0x768 [ 56.957252][ T4936] hardirqs last disabled at (557088): [] el1_brk64+0x20/0x54 [ 56.958702][ T4936] softirqs last enabled at (557014): [] do_sve_acc+0x32c/0x4b8 [ 56.960193][ T4936] softirqs last disabled at (557012): [] do_sve_acc+0x10c/0x4b8 [ 56.961678][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 56.988247][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 56.988371][ T4936] ------------[ cut here ]------------ [ 56.988376][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 56.993723][ T4936] Modules linked in: [ 56.994432][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 56.996357][ T4936] Tainted: [W]=WARN [ 56.997007][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.998790][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 57.000107][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 57.001182][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 57.002292][ T4936] sp : ffff80009b2f7060 [ 57.002999][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 57.004494][ T4936] x26: ffff0000dd15a798 x25: ffff0000dd15a7c0 x24: ffff800088a09bc0 [ 57.005938][ T4936] x23: ffff0000dde40000 x22: 0000000000000381 x21: ffff0000dde40068 [ 57.007357][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 57.008812][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 57.010222][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 57.011662][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 57.013043][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 57.014405][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 57.015763][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 57.017155][ T4936] Call trace: [ 57.017703][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 57.018815][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 57.019736][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 57.020782][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 57.021753][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 57.022677][ T4936] ext4_dirty_inode+0xd4/0x104 [ 57.023500][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 57.024407][ T4936] sync_lazytime+0x1a8/0x68c [ 57.025214][ T4936] iput+0x1cc/0xb90 [ 57.025933][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 57.026852][ T4936] __dentry_kill+0x170/0x5fc [ 57.027647][ T4936] shrink_kill+0xe8/0x318 [ 57.028383][ T4936] shrink_dentry_list+0x154/0x2a4 [ 57.029208][ T4936] shrink_dcache_tree+0x40c/0x570 [ 57.030076][ T4936] do_one_tree+0x24/0x58 [ 57.030830][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 57.031806][ T4936] generic_shutdown_super+0x70/0x2b8 [ 57.032688][ T4936] kill_block_super+0x44/0x90 [ 57.033505][ T4936] ext4_kill_sb+0x68/0xa4 [ 57.034250][ T4936] deactivate_locked_super+0xc4/0x140 [ 57.035185][ T4936] deactivate_super+0xd8/0xf8 [ 57.036002][ T4936] cleanup_mnt+0x328/0x3b8 [ 57.036756][ T4936] __cleanup_mnt+0x20/0x30 [ 57.037498][ T4936] task_work_run+0x1c4/0x254 [ 57.038306][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 57.039207][ T4936] el0_svc+0x18c/0x260 [ 57.039938][ T4936] el0t_64_sync_handler+0x48/0x148 [ 57.040830][ T4936] el0t_64_sync+0x198/0x19c [ 57.041669][ T4936] irq event stamp: 562520 [ 57.042447][ T4936] hardirqs last enabled at (562519): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 57.044157][ T4936] hardirqs last disabled at (562520): [] el1_brk64+0x20/0x54 [ 57.045691][ T4936] softirqs last enabled at (562450): [] do_sve_acc+0x32c/0x4b8 [ 57.047317][ T4936] softirqs last disabled at (562448): [] do_sve_acc+0x10c/0x4b8 [ 57.048861][ T4936] ---[ end trace 0000000000000000 ]--- [ 57.074744][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 57.076895][ T4936] ------------[ cut here ]------------ [ 57.076903][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 57.079672][ T4936] Modules linked in: [ 57.080294][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 57.082169][ T4936] Tainted: [W]=WARN [ 57.082835][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.084460][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 57.085869][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 57.086983][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 57.088060][ T4936] sp : ffff80009b2f7060 [ 57.088697][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 57.090322][ T4936] x26: ffff0000e327ba48 x25: ffff0000e327ba70 x24: ffff800088a09bc0 [ 57.091665][ T4936] x23: ffff0000d6e0a000 x22: 0000000000000381 x21: ffff0000d6e0a068 [ 57.093076][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 57.094484][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c [ 57.095946][ T4936] x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 [ 57.097290][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 57.098582][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 57.099978][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 57.101361][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 57.102682][ T4936] Call trace: [ 57.103267][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 57.104347][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 57.105214][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 57.106165][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 57.107034][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 57.107877][ T4936] ext4_dirty_inode+0xd4/0x104 [ 57.108612][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 57.109398][ T4936] sync_lazytime+0x1a8/0x68c [ 57.110184][ T4936] iput+0x1cc/0xb90 [ 57.110808][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 57.111551][ T4936] __dentry_kill+0x170/0x5fc [ 57.112273][ T4936] shrink_kill+0xe8/0x318 [ 57.112997][ T4936] shrink_dentry_list+0x154/0x2a4 [ 57.113840][ T4936] shrink_dcache_tree+0x40c/0x570 [ 57.114673][ T4936] do_one_tree+0x24/0x58 [ 57.115367][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 57.116236][ T4936] generic_shutdown_super+0x70/0x2b8 [ 57.117127][ T4936] kill_block_super+0x44/0x90 [ 57.117899][ T4936] ext4_kill_sb+0x68/0xa4 [ 57.118620][ T4936] deactivate_locked_super+0xc4/0x140 [ 57.119490][ T4936] deactivate_super+0xd8/0xf8 [ 57.120307][ T4936] cleanup_mnt+0x328/0x3b8 [ 57.121046][ T4936] __cleanup_mnt+0x20/0x30 [ 57.121860][ T4936] task_work_run+0x1c4/0x254 [ 57.122714][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 57.123525][ T4936] el0_svc+0x18c/0x260 [ 57.124201][ T4936] el0t_64_sync_handler+0x48/0x148 [ 57.125090][ T4936] el0t_64_sync+0x198/0x19c [ 57.125872][ T4936] irq event stamp: 567760 [ 57.126577][ T4936] hardirqs last enabled at (567759): [] finish_task_switch+0x22c/0x768 [ 57.128215][ T4936] hardirqs last disabled at (567760): [] el1_brk64+0x20/0x54 [ 57.129610][ T4936] softirqs last enabled at (567690): [] do_sve_acc+0x32c/0x4b8 [ 57.131199][ T4936] softirqs last disabled at (567688): [] do_sve_acc+0x10c/0x4b8 [ 57.132759][ T4936] ---[ end trace 0000000000000000 ]--- [ 57.135209][ T4727] Bluetooth: hci0: command tx timeout [ 5 ** replaying previous printk message ** [ 57.165110][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 57.165237][ T4936] ------------[ cut here ]------------ [ 57.165242][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 57.170658][ T4936] Modules linked in: [ 57.171303][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 57.173192][ T4936] Tainted: [W]=WARN [ 57.173849][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.175547][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 57.176818][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 57.177867][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 57.178907][ T4936] sp : ffff80009b2f7060 [ 57.179562][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 57.180800][ T4936] x26: ffff0000e32dccf8 x25: ffff0000e32dcd20 x24: ffff800088a09bc0 [ 57.182086][ T4936] x23: ffff0000d6f84000 x22: 0000000000000381 x21: ffff0000d6f84068 [ 57.183388][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 57.184809][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 57.186164][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 57.187532][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 57.188891][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 57.190195][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 57.191481][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 57.192891][ T4936] Call trace: [ 57.193455][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 57.194640][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 57.195542][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 57.196520][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 57.197444][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 57.198425][ T4936] ext4_dirty_inode+0xd4/0x104 [ 57.199247][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 57.200153][ T4936] sync_lazytime+0x1a8/0x68c [ 57.200926][ T4936] iput+0x1cc/0xb90 [ 57.201549][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 57.202320][ T4936] __dentry_kill+0x170/0x5fc [ 57.203093][ T4936] shrink_kill+0xe8/0x318 [ 57.203835][ T4936] shrink_dentry_list+0x154/0x2a4 [ 57.204725][ T4936] shrink_dcache_tree+0x40c/0x570 [ 57.205607][ T4936] do_one_tree+0x24/0x58 [ 57.206347][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 57.207284][ T4936] generic_shutdown_super+0x70/0x2b8 [ 57.208205][ T4936] kill_block_super+0x44/0x90 [ 57.209033][ T4936] ext4_kill_sb+0x68/0xa4 [ 57.209794][ T4936] deactivate_locked_super+0xc4/0x140 [ 57.210678][ T4936] deactivate_super+0xd8/0xf8 [ 57.211491][ T4936] cleanup_mnt+0x328/0x3b8 [ 57.212272][ T4936] __cleanup_mnt+0x20/0x30 [ 57.213080][ T4936] task_work_run+0x1c4/0x254 [ 57.213878][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 57.214840][ T4936] el0_svc+0x18c/0x260 [ 57.215571][ T4936] el0t_64_sync_handler+0x48/0x148 [ 57.216385][ T4936] el0t_64_sync+0x198/0x19c [ 57.217142][ T4936] irq event stamp: 572718 [ 57.217913][ T4936] hardirqs last enabled at (572717): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 57.219733][ T4936] hardirqs last disabled at (572718): [] el1_brk64+0x20/0x54 [ 57.221298][ T4936] softirqs last enabled at (572650): [] do_sve_acc+0x32c/0x4b8 [ 57.222851][ T4936] softirqs last disabled at (572648): [] do_sve_acc+0x10c/0x4b8 [ 57.224506][ T4936] ---[ end trace 0000000000000000 ]--- [ 57.255828][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 57.258194][ T4936] ------------[ cut here ]------------ [ 57.258204][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 57.260955][ T4936] Modules linked in: [ 57.261593][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 57.263365][ T4936] Tainted: [W]=WARN [ 57.263967][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.265643][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 57.266930][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 57.268048][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 57.269132][ T4936] sp : ffff80009b2f7060 [ 57.269821][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 57.271210][ T4936] x26: ffff0000e3070b90 x25: ffff0000e3070bb8 x24: ffff800088a09bc0 [ 57.272557][ T4936] x23: ffff0000de0cc000 x22: 0000000000000381 x21: ffff0000de0cc068 [ 57.273889][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 57.275248][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 [ 57.276732][ T4936] x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 [ 57.278130][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 57.279541][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 57.280907][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 57.282276][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 57.283728][ T4936] Call trace: [ 57.284286][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 57.285382][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 57.286318][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 57.287338][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 57.288343][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 57.289334][ T4936] ext4_dirty_inode+0xd4/0x104 [ 57.290171][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 57.291052][ T4936] sync_lazytime+0x1a8/0x68c [ 57.291842][ T4936] iput+0x1cc/0xb90 [ 57.292470][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 57.293285][ T4936] __dentry_kill+0x170/0x5fc [ 57.294066][ T4936] shrink_kill+0xe8/0x318 [ 57.294748][ T4936] shrink_dentry_list+0x154/0x2a4 [ 57.295592][ T4936] shrink_dcache_tree+0x40c/0x570 [ 57.296436][ T4936] do_one_tree+0x24/0x58 [ 57.297130][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 57.298031][ T4936] generic_shutdown_super+0x70/0x2b8 [ 57.298953][ T4936] kill_block_super+0x44/0x90 [ 57.299797][ T4936] ext4_kill_sb+0x68/0xa4 [ 57.300531][ T4936] deactivate_locked_super+0xc4/0x140 [ 57.301468][ T4936] deactivate_super+0xd8/0xf8 [ 57.302217][ T4936] cleanup_mnt+0x328/0x3b8 [ 57.302943][ T4936] __cleanup_mnt+0x20/0x30 [ 57.303683][ T4936] task_work_run+0x1c4/0x254 [ 57.304440][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 57.305310][ T4936] el0_svc+0x18c/0x260 [ 57.305978][ T4936] el0t_64_sync_handler+0x48/0x148 [ 57.306853][ T4936] el0t_64_sync+0x198/0x19c [ 57.307621][ T4936] irq event stamp: 577750 [ 57.308321][ T4936] hardirqs last enabled at (577749): [] finish_task_switch+0x22c/0x768 [ 57.309979][ T4936] hardirqs last disabled at (577750): [] el1_brk64+0x20/0x54 [ 57.311483][ T4936] softirqs last enabled at (577678): [] do_sve_acc+0x32c/0x4b8 [ 57.312973][ T4936] softirqs last disabled at (577676): [] do_sve_acc+0x10c/0x4b8 [ 57.314376][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 57.352846][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 57.352958][ T4936] ------------[ cut here ]------------ [ 57.352963][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 57.358353][ T4936] Modules linked in: [ 57.359062][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 57.360891][ T4936] Tainted: [W]=WARN [ 57.361537][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.363326][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 57.364599][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 57.365759][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 57.366881][ T4936] sp : ffff80009b2f7060 [ 57.367563][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 57.368920][ T4936] x26: ffff0000e3007258 x25: ffff0000e3007280 x24: ffff800088a09bc0 [ 57.370300][ T4936] x23: ffff0000c6ec8000 x22: 0000000000000381 x21: ffff0000c6ec8068 [ 57.371626][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 57.372920][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 57.374326][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 57.375815][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 57.377176][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 57.378434][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 57.379860][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 57.381232][ T4936] Call trace: [ 57.381795][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 57.382927][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 57.383907][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 57.384920][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 57.385847][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 57.386809][ T4936] ext4_dirty_inode+0xd4/0x104 [ 57.387633][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 57.388522][ T4936] sync_lazytime+0x1a8/0x68c [ 57.389344][ T4936] iput+0x1cc/0xb90 [ 57.390032][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 57.390920][ T4936] __dentry_kill+0x170/0x5fc [ 57.391740][ T4936] shrink_kill+0xe8/0x318 [ 57.392548][ T4936] shrink_dentry_list+0x154/0x2a4 [ 57.393424][ T4936] shrink_dcache_tree+0x40c/0x570 [ 57.394323][ T4936] do_one_tree+0x24/0x58 [ 57.395105][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 57.396053][ T4936] generic_shutdown_super+0x70/0x2b8 [ 57.397021][ T4936] kill_block_super+0x44/0x90 [ 57.397835][ T4936] ext4_kill_sb+0x68/0xa4 [ 57.398617][ T4936] deactivate_locked_super+0xc4/0x140 [ 57.399615][ T4936] deactivate_super+0xd8/0xf8 [ 57.400526][ T4936] cleanup_mnt+0x328/0x3b8 [ 57.401264][ T4936] __cleanup_mnt+0x20/0x30 [ 57.402012][ T4936] task_work_run+0x1c4/0x254 [ 57.402845][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 57.403882][ T4936] el0_svc+0x18c/0x260 [ 57.404609][ T4936] el0t_64_sync_handler+0x48/0x148 [ 57.405539][ T4936] el0t_64_sync+0x198/0x19c [ 57.406358][ T4936] irq event stamp: 583760 [ 57.407119][ T4936] hardirqs last enabled at (583759): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 57.408861][ T4936] hardirqs last disabled at (583760): [] el1_brk64+0x20/0x54 [ 57.410496][ T4936] softirqs last enabled at (583692): [] do_sve_acc+0x32c/0x4b8 [ 57.412133][ T4936] softirqs last disabled at (583690): [] do_sve_acc+0x10c/0x4b8 [ 57.413774][ T4936] ---[ end trace 0000000000000000 ]--- [ 57 ** replaying previous printk message ** [ 57.446808][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 57.446932][ T4936] ------------[ cut here ]------------ [ 57.446937][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 57.452562][ T4936] Modules linked in: [ 57.453257][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 57.455122][ T4936] Tainted: [W]=WARN [ 57.455830][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.457555][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 57.458848][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 57.459981][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 57.461095][ T4936] sp : ffff80009b2f7060 [ 57.461826][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 57.463236][ T4936] x26: ffff0000e3075fa8 x25: ffff0000e3075fd0 x24: ffff800088a09bc0 [ 57.464657][ T4936] x23: ffff0000d21b0000 x22: 0000000000000381 x21: ffff0000d21b0068 [ 57.466005][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 57.467390][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 57.468782][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 57.470109][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 57.471496][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 57.472899][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 57.474311][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 57.475804][ T4936] Call trace: [ 57.476354][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 57.477462][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 57.478389][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 57.479359][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 57.480336][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 57.481260][ T4936] ext4_dirty_inode+0xd4/0x104 [ 57.482038][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 57.482920][ T4936] sync_lazytime+0x1a8/0x68c [ 57.483719][ T4936] iput+0x1cc/0xb90 [ 57.484437][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 57.485350][ T4936] __dentry_kill+0x170/0x5fc [ 57.486169][ T4936] shrink_kill+0xe8/0x318 [ 57.486951][ T4936] shrink_dentry_list+0x154/0x2a4 [ 57.487834][ T4936] shrink_dcache_tree+0x40c/0x570 [ 57.488777][ T4936] do_one_tree+0x24/0x58 [ 57.489525][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 57.490489][ T4936] generic_shutdown_super+0x70/0x2b8 [ 57.491447][ T4936] kill_block_super+0x44/0x90 [ 57.492304][ T4936] ext4_kill_sb+0x68/0xa4 [ 57.493037][ T4936] deactivate_locked_super+0xc4/0x140 [ 57.493928][ T4936] deactivate_super+0xd8/0xf8 [ 57.494776][ T4936] cleanup_mnt+0x328/0x3b8 [ 57.495554][ T4936] __cleanup_mnt+0x20/0x30 [ 57.496333][ T4936] task_work_run+0x1c4/0x254 [ 57.497155][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 57.498068][ T4936] el0_svc+0x18c/0x260 [ 57.498803][ T4936] el0t_64_sync_handler+0x48/0x148 [ 57.499679][ T4936] el0t_64_sync+0x198/0x19c [ 57.500424][ T4936] irq event stamp: 589558 [ 57.501167][ T4936] hardirqs last enabled at (589557): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 57.502872][ T4936] hardirqs last disabled at (589558): [] el1_brk64+0x20/0x54 [ 57.504472][ T4936] softirqs last enabled at (589490): [] do_sve_acc+0x32c/0x4b8 [ 57.506021][ T4936] softirqs last disabled at (589488): [] do_sve_acc+0x10c/0x4b8 [ 57.507625][ T4936] ---[ end trace 0000000000000000 ]--- [ 57.545206][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 57.547348][ T4936] ------------[ cut here ]------------ [ 57.547355][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 57.550073][ T4936] Modules linked in: [ 57.550697][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 57.552441][ T4936] Tainted: [W]=WARN [ 57.553079][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.554783][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 57.556168][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 57.557284][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 57.558398][ T4936] sp : ffff80009b2f7060 [ 57.559073][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 57.560499][ T4936] x26: ffff0000e30043a0 x25: ffff0000e30043c8 x24: ffff800088a09bc0 [ 57.561868][ T4936] x23: ffff0000dde14000 x22: 0000000000000381 x21: ffff0000dde14068 [ 57.563118][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 57.564375][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c [ 57.565753][ T4936] x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 [ 57.567081][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 57.568424][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 57.569762][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 57.571040][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 57.572354][ T4936] Call trace: [ 57.572963][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 57.574011][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 57.574992][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 57.575968][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 57.576929][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 57.577893][ T4936] ext4_dirty_inode+0xd4/0x104 [ 57.578678][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 57.579551][ T4936] sync_lazytime+0x1a8/0x68c [ 57.580350][ T4936] iput+0x1cc/0xb90 [ 57.581010][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 57.581898][ T4936] __dentry_kill+0x170/0x5fc [ 57.582659][ T4936] shrink_kill+0xe8/0x318 [ 57.583390][ T4936] shrink_dentry_list+0x154/0x2a4 [ 57.584208][ T4936] shrink_dcache_tree+0x40c/0x570 [ 57.585031][ T4936] do_one_tree+0x24/0x58 [ 57.585757][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 57.586691][ T4936] generic_shutdown_super+0x70/0x2b8 [ 57.587646][ T4936] kill_block_super+0x44/0x90 [ 57.588444][ T4936] ext4_kill_sb+0x68/0xa4 [ 57.589146][ T4936] deactivate_locked_super+0xc4/0x140 [ 57.590113][ T4936] deactivate_super+0xd8/0xf8 [ 57.590958][ T4936] cleanup_mnt+0x328/0x3b8 [ 57.591729][ T4936] __cleanup_mnt+0x20/0x30 [ 57.592492][ T4936] task_work_run+0x1c4/0x254 [ 57.593246][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 57.594144][ T4936] el0_svc+0x18c/0x260 [ 57.594869][ T4936] el0t_64_sync_handler+0x48/0x148 [ 57.595735][ T4936] el0t_64_sync+0x198/0x19c [ 57.596463][ T4936] irq event stamp: 594668 [ 57.597213][ T4936] hardirqs last enabled at (594667): [] finish_task_switch+0x22c/0x768 [ 57.598924][ T4936] hardirqs last disabled at (594668): [] el1_brk64+0x20/0x54 [ 57.600446][ T4936] softirqs last enabled at (594594): [] do_sve_acc+0x32c/0x4b8 [ 57.602059][ T4936] softirqs last disabled at (594592): [] do_sve_acc+0x10c/0x4b8 [ 57.603699][ T4936] ---[ end trace 0000000000000000 ]--- [ 57.634550][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 57.636785][ T4936] ------------[ cut here ]------------ [ 57.636792][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 57.639584][ T4936] Modules linked in: [ 57.640248][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 57.642018][ T4936] Tainted: [W]=WARN [ 57.642601][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.644266][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 57.645615][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 57.646719][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 57.647849][ T4936] sp : ffff80009b2f7060 [ 57.648577][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 57.649888][ T4936] x26: ffff0000e30814e8 x25: ffff0000e3081510 x24: ffff800088a09bc0 [ 57.651259][ T4936] x23: ffff0000d4044000 x22: 0000000000000381 x21: ffff0000d4044068 [ 57.652636][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 57.653946][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c [ 57.655301][ T4936] x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 [ 57.656623][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 57.657997][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 57.659366][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 57.660751][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 57.662202][ T4936] Call trace: [ 57.662725][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 57.663767][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 57.664720][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 57.665754][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 57.666709][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 57.667638][ T4936] ext4_dirty_inode+0xd4/0x104 [ 57.668431][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 57.669291][ T4936] sync_lazytime+0x1a8/0x68c [ 57.670037][ T4936] iput+0x1cc/0xb90 [ 57.670688][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 57.671565][ T4936] __dentry_kill+0x170/0x5fc [ 57.672303][ T4936] shrink_kill+0xe8/0x318 [ 57.673028][ T4936] shrink_dentry_list+0x154/0x2a4 [ 57.673866][ T4936] shrink_dcache_tree+0x40c/0x570 [ 57.674735][ T4936] do_one_tree+0x24/0x58 [ 57.675459][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 57.676357][ T4936] generic_shutdown_super+0x70/0x2b8 [ 57.677273][ T4936] kill_block_super+0x44/0x90 [ 57.678107][ T4936] ext4_kill_sb+0x68/0xa4 [ 57.678870][ T4936] deactivate_locked_super+0xc4/0x140 [ 57.679770][ T4936] deactivate_super+0xd8/0xf8 [ 57.680605][ T4936] cleanup_mnt+0x328/0x3b8 [ 57.681388][ T4936] __cleanup_mnt+0x20/0x30 [ 57.682202][ T4936] task_work_run+0x1c4/0x254 [ 57.682967][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 57.683934][ T4936] el0_svc+0x18c/0x260 [ 57.684654][ T4936] el0t_64_sync_handler+0x48/0x148 [ 57.685535][ T4936] el0t_64_sync+0x198/0x19c [ 57.686226][ T4936] irq event stamp: 599876 [ 57.686924][ T4936] hardirqs last enabled at (599875): [] finish_task_switch+0x22c/0x768 [ 57.688578][ T4936] hardirqs last disabled at (599876): [] el1_brk64+0x20/0x54 [ 57.690106][ T4936] softirqs last enabled at (599802): [] do_sve_acc+0x32c/0x4b8 [ 57.691708][ T4936] softirqs last disabled at (599800): [] do_sve_acc+0x10c/0x4b8 [ 57.693347][ T4936] ---[ end trace 0000000000000000 ]--- [ 57.737501][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 57.739537][ T4936] ------------[ cut here ]------------ [ 57.739546][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 57.742400][ T4936] Modules linked in: [ 57.743065][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 57.744872][ T4936] Tainted: [W]=WARN [ 57.745523][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.747228][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 57.748488][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 57.749581][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 57.750697][ T4936] sp : ffff80009b2f7060 [ 57.751445][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 57.752863][ T4936] x26: ffff0000dd168b90 x25: ffff0000dd168bb8 x24: ffff800088a09bc0 [ 57.754237][ T4936] x23: ffff0000d1dc8000 x22: 0000000000000381 x21: ffff0000d1dc8068 [ 57.755548][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 57.756865][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c [ 57.758120][ T4936] x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 [ 57.759448][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 57.760767][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 57.762060][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 57.763323][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 57.764766][ T4936] Call trace: [ 57.765306][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 57.766406][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 57.767371][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 57.768487][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 57.769508][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 57.770463][ T4936] ext4_dirty_inode+0xd4/0x104 [ 57.771272][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 57.772202][ T4936] sync_lazytime+0x1a8/0x68c [ 57.772976][ T4936] iput+0x1cc/0xb90 [ 57.773611][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 57.774473][ T4936] __dentry_kill+0x170/0x5fc [ 57.775254][ T4936] shrink_kill+0xe8/0x318 [ 57.776007][ T4936] shrink_dentry_list+0x154/0x2a4 [ 57.776853][ T4936] shrink_dcache_tree+0x40c/0x570 [ 57.777786][ T4936] do_one_tree+0x24/0x58 [ 57.778530][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 57.779437][ T4936] generic_shutdown_super+0x70/0x2b8 [ 57.780302][ T4936] kill_block_super+0x44/0x90 [ 57.781100][ T4936] ext4_kill_sb+0x68/0xa4 [ 57.781825][ T4936] deactivate_locked_super+0xc4/0x140 [ 57.782758][ T4936] deactivate_super+0xd8/0xf8 [ 57.783543][ T4936] cleanup_mnt+0x328/0x3b8 [ 57.784300][ T4936] __cleanup_mnt+0x20/0x30 [ 57.785040][ T4936] task_work_run+0x1c4/0x254 [ 57.785767][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 57.786657][ T4936] el0_svc+0x18c/0x260 [ 57.787348][ T4936] el0t_64_sync_handler+0x48/0x148 [ 57.788157][ T4936] el0t_64_sync+0x198/0x19c [ 57.788926][ T4936] irq event stamp: 605320 [ 57.789658][ T4936] hardirqs last enabled at (605319): [] finish_task_switch+0x22c/0x768 [ 57.791266][ T4936] hardirqs last disabled at (605320): [] el1_brk64+0x20/0x54 [ 57.792832][ T4936] softirqs last enabled at (605250): [] do_sve_acc+0x32c/0x4b8 [ 57.794435][ T4936] softirqs last disabled at (605248): [] do_sve_acc+0x10c/0x4b8 [ 57.796017][ T4936] ---[ end trace 0000000000000000 ]--- [ 57.828473][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ ** replaying previous printk message ** [ 57.830657][ T4936] ------------[ cut here ]------------ [ 57.830666][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 57.834113][ T4936] Modules linked in: [ 57.834741][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 57.836662][ T4936] Tainted: [W]=WARN [ 57.837310][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.839037][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 57.840394][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 57.841552][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 57.842706][ T4936] sp : ffff80009b2f7060 [ 57.843398][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 57.844798][ T4936] x26: ffff0000e309a798 x25: ffff0000e309a7c0 x24: ffff800088a09bc0 [ 57.846209][ T4936] x23: ffff0000d4b90000 x22: 0000000000000381 x21: ffff0000d4b90068 [ 57.847656][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 57.849094][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 57.850439][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 57.851839][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 57.853195][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 57.854511][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 57.855863][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 57.857335][ T4936] Call trace: [ 57.857905][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 57.858975][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 57.859884][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 57.860874][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 57.861763][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 57.862632][ T4936] ext4_dirty_inode+0xd4/0x104 [ 57.863450][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 57.864281][ T4936] sync_lazytime+0x1a8/0x68c [ 57.865071][ T4936] iput+0x1cc/0xb90 [ 57.865755][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 57.866664][ T4936] __dentry_kill+0x170/0x5fc [ 57.867428][ T4936] shrink_kill+0xe8/0x318 [ 57.868173][ T4936] shrink_dentry_list+0x154/0x2a4 [ 57.869027][ T4936] shrink_dcache_tree+0x40c/0x570 [ 57.869877][ T4936] do_one_tree+0x24/0x58 [ 57.870551][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 57.871489][ T4936] generic_shutdown_super+0x70/0x2b8 [ 57.872462][ T4936] kill_block_super+0x44/0x90 [ 57.873335][ T4936] ext4_kill_sb+0x68/0xa4 [ 57.874089][ T4936] deactivate_locked_super+0xc4/0x140 [ 57.875033][ T4936] deactivate_super+0xd8/0xf8 [ 57.875870][ T4936] cleanup_mnt+0x328/0x3b8 [ 57.876666][ T4936] __cleanup_mnt+0x20/0x30 [ 57.877449][ T4936] task_work_run+0x1c4/0x254 [ 57.878296][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 57.879241][ T4936] el0_svc+0x18c/0x260 [ 57.879948][ T4936] el0t_64_sync_handler+0x48/0x148 [ 57.880767][ T4936] el0t_64_sync+0x198/0x19c [ 57.881581][ T4936] irq event stamp: 610560 [ 57.882353][ T4936] hardirqs last enabled at (610559): [] finish_task_switch+0x22c/0x768 [ 57.884037][ T4936] hardirqs last disabled at (610560): [] el1_brk64+0x20/0x54 [ 57.885537][ T4936] softirqs last enabled at (610482): [] do_sve_acc+0x32c/0x4b8 [ 57.887159][ T4936] softirqs last disabled at (610480): [] do_sve_acc+0x10c/0x4b8 [ 57.888708][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 57.924173][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 57.924290][ T4936] ------------[ cut here ]------------ [ 57.924294][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 57.929706][ T4936] Modules linked in: [ 57.930367][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 57.932205][ T4936] Tainted: [W]=WARN [ 57.932822][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.934558][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 57.935859][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 57.936969][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 57.938114][ T4936] sp : ffff80009b2f7060 [ 57.938799][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 57.940236][ T4936] x26: ffff0000e30994e8 x25: ffff0000e3099510 x24: ffff800088a09bc0 [ 57.941618][ T4936] x23: ffff0000d8fee000 x22: 0000000000000381 x21: ffff0000d8fee068 [ 57.942958][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 57.944309][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 57.945654][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 57.946986][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 57.948364][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 57.949783][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 57.951165][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 57.952561][ T4936] Call trace: [ 57.953090][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 57.954128][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 57.955036][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 57.956041][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 57.957033][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 57.957971][ T4936] ext4_dirty_inode+0xd4/0x104 [ 57.958800][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 57.959716][ T4936] sync_lazytime+0x1a8/0x68c [ 57.960581][ T4936] iput+0x1cc/0xb90 [ 57.961249][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 57.962160][ T4936] __dentry_kill+0x170/0x5fc [ 57.962955][ T4936] shrink_kill+0xe8/0x318 [ 57.963664][ T4936] shrink_dentry_list+0x154/0x2a4 [ 57.964490][ T4936] shrink_dcache_tree+0x40c/0x570 [ 57.965336][ T4936] do_one_tree+0x24/0x58 [ 57.966099][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 57.967035][ T4936] generic_shutdown_super+0x70/0x2b8 [ 57.967989][ T4936] kill_block_super+0x44/0x90 [ 57.968807][ T4936] ext4_kill_sb+0x68/0xa4 [ 57.969553][ T4936] deactivate_locked_super+0xc4/0x140 [ 57.970495][ T4936] deactivate_super+0xd8/0xf8 [ 57.971277][ T4936] cleanup_mnt+0x328/0x3b8 [ 57.972021][ T4936] __cleanup_mnt+0x20/0x30 [ 57.972791][ T4936] task_work_run+0x1c4/0x254 [ 57.973609][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 57.974519][ T4936] el0_svc+0x18c/0x260 [ 57.975231][ T4936] el0t_64_sync_handler+0x48/0x148 [ 57.976145][ T4936] el0t_64_sync+0x198/0x19c [ 57.976949][ T4936] irq event stamp: 615742 [ 57.977697][ T4936] hardirqs last enabled at (615741): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 57.979517][ T4936] hardirqs last disabled at (615742): [] el1_brk64+0x20/0x54 [ 57.981034][ T4936] softirqs last enabled at (615666): [] do_sve_acc+0x32c/0x4b8 [ 57.982677][ T4936] softirqs last disabled at (615664): [] do_sve_acc+0x10c/0x4b8 [ 57.984318][ T4936] ---[ end trace 0000000000000000 ]--- [ 58.023749][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 58.025819][ T4936] ------------[ cut here ]------------ [ 58.025827][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 58.028641][ T4936] Modules linked in: [ 58.029303][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 58.031095][ T4936] Tainted: [W]=WARN [ 58.031770][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.033556][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 58.034915][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 58.036075][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 58.037218][ T4936] sp : ffff80009b2f7060 [ 58.037973][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 58.039405][ T4936] x26: ffff0000e3085fa8 x25: ffff0000e3085fd0 x24: ffff800088a09bc0 [ 58.040784][ T4936] x23: ffff0000d994a000 x22: 0000000000000381 x21: ffff0000d994a068 [ 58.042074][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 58.043322][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fdf10c [ 58.044500][ T4936] x14: ffff0001a5fdf108 x13: 0000000000000001 x12: 0000000000000000 [ 58.045698][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 58.046973][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 58.048218][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 58.049494][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 58.050781][ T4936] Call trace: [ 58.051271][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 58.052247][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 58.053097][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 58.054134][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 58.055036][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 58.056029][ T4936] ext4_dirty_inode+0xd4/0x104 [ 58.056869][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 58.057712][ T4936] sync_lazytime+0x1a8/0x68c [ 58.058517][ T4936] iput+0x1cc/0xb90 [ 58.059179][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 58.060043][ T4936] __dentry_kill+0x170/0x5fc [ 58.060827][ T4936] shrink_kill+0xe8/0x318 [ 58.061542][ T4936] shrink_dentry_list+0x154/0x2a4 [ 58.062358][ T4936] shrink_dcache_tree+0x40c/0x570 [ 58.063175][ T4936] do_one_tree+0x24/0x58 [ 58.063914][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 58.064832][ T4936] generic_shutdown_super+0x70/0x2b8 [ 58.065724][ T4936] kill_block_super+0x44/0x90 [ 58.066524][ T4936] ext4_kill_sb+0x68/0xa4 [ 58.067247][ T4936] deactivate_locked_super+0xc4/0x140 [ 58.068137][ T4936] deactivate_super+0xd8/0xf8 [ 58.068924][ T4936] cleanup_mnt+0x328/0x3b8 [ 58.069674][ T4936] __cleanup_mnt+0x20/0x30 [ 58.070456][ T4936] task_work_run+0x1c4/0x254 [ 58.071241][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 58.072138][ T4936] el0_svc+0x18c/0x260 [ 58.072822][ T4936] el0t_64_sync_handler+0x48/0x148 [ 58.073717][ T4936] el0t_64_sync+0x198/0x19c [ 58.074510][ T4936] irq event stamp: 621764 [ 58.075226][ T4936] hardirqs last enabled at (621763): [] finish_task_switch+0x22c/0x768 [ 58.076876][ T4936] hardirqs last disabled at (621764): [] el1_brk64+0x20/0x54 [ 58.078373][ T4936] softirqs last enabled at (621684): [] do_sve_acc+0x32c/0x4b8 [ 58.079869][ T4936] softirqs last disabled at (621682): [] do_sve_acc+0x10c/0x4b8 [ 58.081530][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 58.125507][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 58.125618][ T4936] ------------[ cut here ]------------ [ 58.125622][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 58.131246][ T4936] Modules linked in: [ 58.131972][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 58.133838][ T4936] Tainted: [W]=WARN [ 58.134475][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.136240][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 58.137547][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 58.138558][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 58.139607][ T4936] sp : ffff80009b2f7060 [ 58.140329][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 58.141719][ T4936] x26: ffff0000e3097258 x25: ffff0000e3097280 x24: ffff800088a09bc0 [ 58.143107][ T4936] x23: ffff0000d8f60000 x22: 0000000000000381 x21: ffff0000d8f60068 [ 58.144385][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 58.145717][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 58.147033][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 58.148388][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 58.149685][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 58.150969][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 58.152348][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 58.153764][ T4936] Call trace: [ 58.154296][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 58.155396][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 58.156315][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 58.157234][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 58.158188][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 58.159080][ T4936] ext4_dirty_inode+0xd4/0x104 [ 58.159872][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 58.160734][ T4936] sync_lazytime+0x1a8/0x68c [ 58.161518][ T4936] iput+0x1cc/0xb90 [ 58.162204][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 58.163110][ T4936] __dentry_kill+0x170/0x5fc [ 58.163874][ T4936] shrink_kill+0xe8/0x318 [ 58.164663][ T4936] shrink_dentry_list+0x154/0x2a4 [ 58.165481][ T4936] shrink_dcache_tree+0x40c/0x570 [ 58.166351][ T4936] do_one_tree+0x24/0x58 [ 58.167060][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 58.168038][ T4936] generic_shutdown_super+0x70/0x2b8 [ 58.168966][ T4936] kill_block_super+0x44/0x90 [ 58.169745][ T4936] ext4_kill_sb+0x68/0xa4 [ 58.170499][ T4936] deactivate_locked_super+0xc4/0x140 [ 58.171426][ T4936] deactivate_super+0xd8/0xf8 [ 58.172243][ T4936] cleanup_mnt+0x328/0x3b8 [ 58.173054][ T4936] __cleanup_mnt+0x20/0x30 [ 58.173818][ T4936] task_work_run+0x1c4/0x254 [ 58.174550][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 58.175425][ T4936] el0_svc+0x18c/0x260 [ 58.176184][ T4936] el0t_64_sync_handler+0x48/0x148 [ 58.176996][ T4936] el0t_64_sync+0x198/0x19c [ 58.177814][ T4936] irq event stamp: 627192 [ 58.178517][ T4936] hardirqs last enabled at (627191): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 58.180282][ T4936] hardirqs last disabled at (627192): [] el1_brk64+0x20/0x54 [ 58.181743][ T4936] softirqs last enabled at (627124): [] do_sve_acc+0x32c/0x4b8 [ 58.183201][ T4936] softirqs last disabled at (627122): [] do_sve_acc+0x10c/0x4b8 [ 58.184749][ T4936] ---[ end trace 0000000000000000 ]--- [ 58.218100][ T4936] EXT4-fs warning (device loop0): ext4_xat ** replaying previous printk message ** [ 58.218100][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 58.219110][ T4936] ------------[ cut here ]------------ [ 58.219118][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 58.224344][ T4936] Modules linked in: [ 58.225015][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 58.226824][ T4936] Tainted: [W]=WARN [ 58.227473][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.229212][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 58.230500][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 58.231586][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 58.232645][ T4936] sp : ffff80009b2f7060 [ 58.233332][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 58.234670][ T4936] x26: ffff0000e3079e40 x25: ffff0000e3079e68 x24: ffff800088a09bc0 [ 58.235928][ T4936] x23: ffff0000d99ea000 x22: 0000000000000381 x21: ffff0000d99ea068 [ 58.237150][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 58.238422][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: 0000000000000000 [ 58.239747][ T4936] x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 [ 58.241092][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 58.242490][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 58.243857][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 58.245158][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 58.246499][ T4936] Call trace: [ 58.247050][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 58.248197][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 58.249093][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 58.250095][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 58.251063][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 58.251946][ T4936] ext4_dirty_inode+0xd4/0x104 [ 58.252707][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 58.253577][ T4936] sync_lazytime+0x1a8/0x68c [ 58.254325][ T4936] iput+0x1cc/0xb90 [ 58.254962][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 58.255809][ T4936] __dentry_kill+0x170/0x5fc [ 58.256574][ T4936] shrink_kill+0xe8/0x318 [ 58.257299][ T4936] shrink_dentry_list+0x154/0x2a4 [ 58.258153][ T4936] shrink_dcache_tree+0x40c/0x570 [ 58.259047][ T4936] do_one_tree+0x24/0x58 [ 58.259757][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 58.260674][ T4936] generic_shutdown_super+0x70/0x2b8 [ 58.261574][ T4936] kill_block_super+0x44/0x90 [ 58.262317][ T4936] ext4_kill_sb+0x68/0xa4 [ 58.263001][ T4936] deactivate_locked_super+0xc4/0x140 [ 58.263879][ T4936] deactivate_super+0xd8/0xf8 [ 58.264646][ T4936] cleanup_mnt+0x328/0x3b8 [ 58.265398][ T4936] __cleanup_mnt+0x20/0x30 [ 58.266112][ T4936] task_work_run+0x1c4/0x254 [ 58.266844][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 58.267750][ T4936] el0_svc+0x18c/0x260 [ 58.268444][ T4936] el0t_64_sync_handler+0x48/0x148 [ 58.269249][ T4936] el0t_64_sync+0x198/0x19c [ 58.269949][ T4936] irq event stamp: 632818 [ 58.270650][ T4936] hardirqs last enabled at (632817): [] finish_task_switch+0x22c/0x768 [ 58.272303][ T4936] hardirqs last disabled at (632818): [] el1_brk64+0x20/0x54 [ 58.273762][ T4936] softirqs last enabled at (632748): [] do_sve_acc+0x32c/0x4b8 [ 58.275286][ T4936] softirqs last disabled at (632746): [] do_sve_acc+0x10c/0x4b8 [ 58.276736][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 58.307416][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 58.307527][ T4936] ------------[ cut here ]------------ [ 58.307532][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 58.312677][ T4936] Modules linked in: [ 58.313344][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 58.315084][ T4936] Tainted: [W]=WARN [ 58.315717][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.317399][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 58.318720][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 58.319852][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 58.320952][ T4936] sp : ffff80009b2f7060 [ 58.321676][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 58.323055][ T4936] x26: ffff0000e30843a0 x25: ffff0000e30843c8 x24: ffff800088a09bc0 [ 58.324477][ T4936] x23: ffff0000d9c4e000 x22: 0000000000000381 x21: ffff0000d9c4e068 [ 58.325890][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 58.327269][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 58.328603][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 58.329967][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 58.331342][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 58.332718][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 58.334077][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 58.335401][ T4936] Call trace: [ 58.335936][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 58.337088][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 58.338063][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 58.339042][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 58.340026][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 58.341011][ T4936] ext4_dirty_inode+0xd4/0x104 [ 58.341848][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 58.342728][ T4936] sync_lazytime+0x1a8/0x68c [ 58.343505][ T4936] iput+0x1cc/0xb90 [ 58.344143][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 58.344958][ T4936] __dentry_kill+0x170/0x5fc [ 58.345793][ T4936] shrink_kill+0xe8/0x318 [ 58.346577][ T4936] shrink_dentry_list+0x154/0x2a4 [ 58.347364][ T4936] shrink_dcache_tree+0x40c/0x570 [ 58.348218][ T4936] do_one_tree+0x24/0x58 [ 58.348925][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 58.349884][ T4936] generic_shutdown_super+0x70/0x2b8 [ 58.350840][ T4936] kill_block_super+0x44/0x90 [ 58.351637][ T4936] ext4_kill_sb+0x68/0xa4 [ 58.352386][ T4936] deactivate_locked_super+0xc4/0x140 [ 58.353312][ T4936] deactivate_super+0xd8/0xf8 [ 58.354122][ T4936] cleanup_mnt+0x328/0x3b8 [ 58.354881][ T4936] __cleanup_mnt+0x20/0x30 [ 58.355589][ T4936] task_work_run+0x1c4/0x254 [ 58.356388][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 58.357316][ T4936] el0_svc+0x18c/0x260 [ 58.358014][ T4936] el0t_64_sync_handler+0x48/0x148 [ 58.358916][ T4936] el0t_64_sync+0x198/0x19c [ 58.359683][ T4936] irq event stamp: 638370 [ 58.360465][ T4936] hardirqs last enabled at (638369): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 58.362174][ T4936] hardirqs last disabled at (638370): [] el1_brk64+0x20/0x54 [ 58.363735][ T4936] softirqs last enabled at (638302): [] do_sve_acc+0x32c/0x4b8 [ 58.365292][ T4936] softirqs last disabled at (638300): [] do_sve_acc+0x10c/0x4b8 [ 58.366843][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 58.404039][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 58.404152][ T4936] ------------[ cut here ]------------ [ 58.404156][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 58.409546][ T4936] Modules linked in: [ 58.410259][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 58.412079][ T4936] Tainted: [W]=WARN [ 58.412822][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.414598][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 58.415870][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 58.417022][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 58.418162][ T4936] sp : ffff80009b2f7060 [ 58.418860][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 58.420205][ T4936] x26: ffff0000e328d650 x25: ffff0000e328d678 x24: ffff800088a09bc0 [ 58.421568][ T4936] x23: ffff0000da74c000 x22: 0000000000000381 x21: ffff0000da74c068 [ 58.422970][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 58.424257][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 58.425569][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 58.426963][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 58.428302][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 58.429551][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 58.430933][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 58.432217][ T4936] Call trace: [ 58.432770][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 58.433855][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 58.434747][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 58.435737][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 58.436695][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 58.437624][ T4936] ext4_dirty_inode+0xd4/0x104 [ 58.438509][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 58.439431][ T4936] sync_lazytime+0x1a8/0x68c [ 58.440223][ T4936] iput+0x1cc/0xb90 [ 58.440839][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 58.441679][ T4936] __dentry_kill+0x170/0x5fc [ 58.442414][ T4936] shrink_kill+0xe8/0x318 [ 58.443107][ T4936] shrink_dentry_list+0x154/0x2a4 [ 58.444012][ T4936] shrink_dcache_tree+0x40c/0x570 [ 58.444914][ T4936] do_one_tree+0x24/0x58 [ 58.445709][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 58.446648][ T4936] generic_shutdown_super+0x70/0x2b8 [ 58.447558][ T4936] kill_block_super+0x44/0x90 [ 58.448397][ T4936] ext4_kill_sb+0x68/0xa4 [ 58.449171][ T4936] deactivate_locked_super+0xc4/0x140 [ 58.450089][ T4936] deactivate_super+0xd8/0xf8 [ 58.450912][ T4936] cleanup_mnt+0x328/0x3b8 [ 58.451666][ T4936] __cleanup_mnt+0x20/0x30 [ 58.452392][ T4936] task_work_run+0x1c4/0x254 [ 58.453142][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 58.454106][ T4936] el0_svc+0x18c/0x260 [ 58.454777][ T4936] el0t_64_sync_handler+0x48/0x148 [ 58.455610][ T4936] el0t_64_sync+0x198/0x19c [ 58.456317][ T4936] irq event stamp: 643858 [ 58.456983][ T4936] hardirqs last enabled at (643857): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 58.458533][ T4936] hardirqs last disabled at (643858): [] el1_brk64+0x20/0x54 [ 58.459884][ T4936] softirqs last enabled at (643784): [] do_sve_acc+0x32c/0x4b8 [ 58.461279][ T4936] softirqs last disabled at (643782): [] do_sve_acc+0x10c/0x4b8 [ 58.462842][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 58.504596][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 58.504703][ T4936] ------------[ cut here ]------------ [ 58.504708][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 58.509289][ T4936] Modules linked in: [ 58.509866][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 58.511378][ T4936] Tainted: [W]=WARN [ 58.511946][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.513340][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 58.514443][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 58.515372][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 58.516302][ T4936] sp : ffff80009b2f7060 [ 58.516904][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 58.518065][ T4936] x26: ffff0000e32914e8 x25: ffff0000e3291510 x24: ffff800088a09bc0 [ 58.519309][ T4936] x23: ffff0000de102000 x22: 0000000000000381 x21: ffff0000de102068 [ 58.520587][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 58.521837][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 58.523074][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 58.524467][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 58.525807][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 58.527188][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 58.528563][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 58.529921][ T4936] Call trace: [ 58.530485][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 58.531628][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 58.532540][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 58.533453][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 58.534361][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 58.535227][ T4936] ext4_dirty_inode+0xd4/0x104 [ 58.536114][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 58.536990][ T4936] sync_lazytime+0x1a8/0x68c [ 58.537762][ T4936] iput+0x1cc/0xb90 [ 58.538396][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 58.539250][ T4936] __dentry_kill+0x170/0x5fc [ 58.540047][ T4936] shrink_kill+0xe8/0x318 [ 58.540776][ T4936] shrink_dentry_list+0x154/0x2a4 [ 58.541620][ T4936] shrink_dcache_tree+0x40c/0x570 [ 58.542478][ T4936] do_one_tree+0x24/0x58 [ 58.543158][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 58.544027][ T4936] generic_shutdown_super+0x70/0x2b8 [ 58.544884][ T4936] kill_block_super+0x44/0x90 [ 58.545723][ T4936] ext4_kill_sb+0x68/0xa4 [ 58.546498][ T4936] deactivate_locked_super+0xc4/0x140 [ 58.547461][ T4936] deactivate_super+0xd8/0xf8 [ 58.548260][ T4936] cleanup_mnt+0x328/0x3b8 [ 58.549007][ T4936] __cleanup_mnt+0x20/0x30 [ 58.549776][ T4936] task_work_run+0x1c4/0x254 [ 58.550581][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 58.551459][ T4936] el0_svc+0x18c/0x260 [ 58.552126][ T4936] el0t_64_sync_handler+0x48/0x148 [ 58.552951][ T4936] el0t_64_sync+0x198/0x19c [ 58.553673][ T4936] irq event stamp: 651148 [ 58.554332][ T4936] hardirqs last enabled at (651147): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 58.555921][ T4936] hardirqs last disabled at (651148): [] el1_brk64+0x20/0x54 [ 58.557285][ T4936] softirqs last enabled at (651074): [] do_sve_acc+0x32c/0x4b8 [ 58.558819][ T4936] softirqs last disabled at (651072): [] do_sve_acc+0x10c/0x4b8 [ 58.560320][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 58.594877][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 58.594991][ T4936] ------------[ cut here ]------------ [ 58.594995][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 58.600307][ T4936] Modules linked in: [ 58.601018][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 58.602892][ T4936] Tainted: [W]=WARN [ 58.603484][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.605217][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 58.606570][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 58.607669][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 58.608881][ T4936] sp : ffff80009b2f7060 [ 58.609604][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 58.611092][ T4936] x26: ffff0000e30a30f0 x25: ffff0000e30a3118 x24: ffff800088a09bc0 [ 58.612470][ T4936] x23: ffff0000d8898000 x22: 0000000000000381 x21: ffff0000d8898068 [ 58.613807][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 58.615190][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 58.616546][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 58.617921][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 58.619318][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 58.620711][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 58.621995][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 58.623415][ T4936] Call trace: [ 58.623979][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 58.625173][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 58.626023][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 58.627068][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 58.627998][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 58.628955][ T4936] ext4_dirty_inode+0xd4/0x104 [ 58.629734][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 58.630537][ T4936] sync_lazytime+0x1a8/0x68c [ 58.631261][ T4936] iput+0x1cc/0xb90 [ 58.631870][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 58.632740][ T4936] __dentry_kill+0x170/0x5fc [ 58.633500][ T4936] shrink_kill+0xe8/0x318 [ 58.634266][ T4936] shrink_dentry_list+0x154/0x2a4 [ 58.635158][ T4936] shrink_dcache_tree+0x40c/0x570 [ 58.636035][ T4936] do_one_tree+0x24/0x58 [ 58.636750][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 58.637653][ T4936] generic_shutdown_super+0x70/0x2b8 [ 58.638608][ T4936] kill_block_super+0x44/0x90 [ 58.639448][ T4936] ext4_kill_sb+0x68/0xa4 [ 58.640193][ T4936] deactivate_locked_super+0xc4/0x140 [ 58.641112][ T4936] deactivate_super+0xd8/0xf8 [ 58.641929][ T4936] cleanup_mnt+0x328/0x3b8 [ 58.642725][ T4936] __cleanup_mnt+0x20/0x30 [ 58.643474][ T4936] task_work_run+0x1c4/0x254 [ 58.644243][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 58.645164][ T4936] el0_svc+0x18c/0x260 [ 58.645837][ T4936] el0t_64_sync_handler+0x48/0x148 [ 58.646696][ T4936] el0t_64_sync+0x198/0x19c [ 58.647417][ T4936] irq event stamp: 656334 [ 58.648138][ T4936] hardirqs last enabled at (656333): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 58.649971][ T4936] hardirqs last disabled at (656334): [] el1_brk64+0x20/0x54 [ 58.651512][ T4936] softirqs last enabled at (656268): [] do_sve_acc+0x32c/0x4b8 [ 58.653145][ T4936] softirqs last disabled at (656266): [] do_sve_acc+0x10c/0x4b8 [ 58.654744][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 58.694578][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 58.694695][ T4936] ------------[ cut here ]------------ [ 58.694699][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 58.700021][ T4936] Modules linked in: [ 58.700717][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 58.702503][ T4936] Tainted: [W]=WARN [ 58.703160][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.704810][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 58.706222][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 58.707318][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 58.708393][ T4936] sp : ffff80009b2f7060 [ 58.709100][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 58.710568][ T4936] x26: ffff0000e30a0b90 x25: ffff0000e30a0bb8 x24: ffff800088a09bc0 [ 58.711862][ T4936] x23: ffff0000c32aa000 x22: 0000000000000381 x21: ffff0000c32aa068 [ 58.713257][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 58.714709][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 58.716110][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 58.717576][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 58.719042][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 58.720376][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 58.721789][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 58.723047][ T4936] Call trace: [ 58.723581][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 58.724713][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 58.725659][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 58.726670][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 58.727664][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 58.728629][ T4936] ext4_dirty_inode+0xd4/0x104 [ 58.729452][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 58.730303][ T4936] sync_lazytime+0x1a8/0x68c [ 58.731056][ T4936] iput+0x1cc/0xb90 [ 58.731703][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 58.732659][ T4936] __dentry_kill+0x170/0x5fc [ 58.733460][ T4936] shrink_kill+0xe8/0x318 [ 58.734267][ T4936] shrink_dentry_list+0x154/0x2a4 [ 58.735133][ T4936] shrink_dcache_tree+0x40c/0x570 [ 58.735968][ T4936] do_one_tree+0x24/0x58 [ 58.736702][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 58.737631][ T4936] generic_shutdown_super+0x70/0x2b8 [ 58.738516][ T4936] kill_block_super+0x44/0x90 [ 58.739326][ T4936] ext4_kill_sb+0x68/0xa4 [ 58.740073][ T4936] deactivate_locked_super+0xc4/0x140 [ 58.740954][ T4936] deactivate_super+0xd8/0xf8 [ 58.741762][ T4936] cleanup_mnt+0x328/0x3b8 [ 58.742453][ T4936] __cleanup_mnt+0x20/0x30 [ 58.743184][ T4936] task_work_run+0x1c4/0x254 [ 58.744001][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 58.744948][ T4936] el0_svc+0x18c/0x260 [ 58.745628][ T4936] el0t_64_sync_handler+0x48/0x148 [ 58.746448][ T4936] el0t_64_sync+0x198/0x19c [ 58.747228][ T4936] irq event stamp: 661630 [ 58.747965][ T4936] hardirqs last enabled at (661629): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 58.749810][ T4936] hardirqs last disabled at (661630): [] el1_brk64+0x20/0x54 [ 58.751330][ T4936] softirqs last enabled at (661560): [] do_sve_acc+0x32c/0x4b8 [ 58.753034][ T4936] softirqs last disabled at (661558): [] do_sve_acc+0x10c/0x4b8 [ 58.754692][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 58.794002][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 58.794116][ T4936] ------------[ cut here ]------------ [ 58.794120][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 58.799524][ T4936] Modules linked in: [ 58.800265][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 58.802141][ T4936] Tainted: [W]=WARN [ 58.802784][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.804412][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 58.805759][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 58.806892][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 58.807905][ T4936] sp : ffff80009b2f7060 [ 58.808545][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 58.809866][ T4936] x26: ffff0000dd1430f0 x25: ffff0000dd143118 x24: ffff800088a09bc0 [ 58.811222][ T4936] x23: ffff0000c1ff0000 x22: 0000000000000381 x21: ffff0000c1ff0068 [ 58.812614][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 58.813992][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 58.815397][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 58.816803][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 58.818216][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 58.819619][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 58.821006][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 58.822276][ T4936] Call trace: [ 58.822772][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 58.823887][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 58.824769][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 58.825721][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 58.826696][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 58.827631][ T4936] ext4_dirty_inode+0xd4/0x104 [ 58.828465][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 58.829298][ T4936] sync_lazytime+0x1a8/0x68c [ 58.830030][ T4936] iput+0x1cc/0xb90 [ 58.830683][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 58.831524][ T4936] __dentry_kill+0x170/0x5fc [ 58.832302][ T4936] shrink_kill+0xe8/0x318 [ 58.833069][ T4936] shrink_dentry_list+0x154/0x2a4 [ 58.833933][ T4936] shrink_dcache_tree+0x40c/0x570 [ 58.834776][ T4936] do_one_tree+0x24/0x58 [ 58.835518][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 58.836434][ T4936] generic_shutdown_super+0x70/0x2b8 [ 58.837338][ T4936] kill_block_super+0x44/0x90 [ 58.838145][ T4936] ext4_kill_sb+0x68/0xa4 [ 58.838844][ T4936] deactivate_locked_super+0xc4/0x140 [ 58.839734][ T4936] deactivate_super+0xd8/0xf8 [ 58.840598][ T4936] cleanup_mnt+0x328/0x3b8 [ 58.841354][ T4936] __cleanup_mnt+0x20/0x30 [ 58.842174][ T4936] task_work_run+0x1c4/0x254 [ 58.843063][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 58.844063][ T4936] el0_svc+0x18c/0x260 [ 58.844758][ T4936] el0t_64_sync_handler+0x48/0x148 [ 58.845594][ T4936] el0t_64_sync+0x198/0x19c [ 58.846336][ T4936] irq event stamp: 666930 [ 58.847115][ T4936] hardirqs last enabled at (666929): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 58.848952][ T4936] hardirqs last disabled at (666930): [] el1_brk64+0x20/0x54 [ 58.850488][ T4936] softirqs last enabled at (666862): [] do_sve_acc+0x32c/0x4b8 [ 58.852056][ T4936] softirqs last disabled at (666860): [] do_sve_acc+0x10c/0x4b8 [ 58.853525][ T4936] ---[ end trace 0000000000000000 ]--- [ ** replaying previous printk message ** [ 58.893787][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 58.893910][ T4936] ------------[ cut here ]------------ [ 58.893915][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 58.899200][ T4936] Modules linked in: [ 58.899821][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 58.901515][ T4936] Tainted: [W]=WARN [ 58.902174][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 58.903823][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 58.905085][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 58.906174][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 58.907282][ T4936] sp : ffff80009b2f7060 [ 58.907988][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 58.909353][ T4936] x26: ffff0000e32a4cf8 x25: ffff0000e32a4d20 x24: ffff800088a09bc0 [ 58.910714][ T4936] x23: ffff0000c5c28000 x22: 0000000000000381 x21: ffff0000c5c28068 [ 58.912019][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 58.913338][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 58.914631][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 58.915918][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 58.917201][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 58.918453][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 58.919830][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 58.921201][ T4936] Call trace: [ 58.921767][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 58.922794][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 58.923688][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 58.924630][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 58.925549][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 58.926475][ T4936] ext4_dirty_inode+0xd4/0x104 [ 58.927293][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 58.928165][ T4936] sync_lazytime+0x1a8/0x68c [ 58.928940][ T4936] iput+0x1cc/0xb90 [ 58.929561][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 58.930447][ T4936] __dentry_kill+0x170/0x5fc [ 58.931208][ T4936] shrink_kill+0xe8/0x318 [ 58.931940][ T4936] shrink_dentry_list+0x154/0x2a4 [ 58.932782][ T4936] shrink_dcache_tree+0x40c/0x570 [ 58.933608][ T4936] do_one_tree+0x24/0x58 [ 58.934300][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 58.935200][ T4936] generic_shutdown_super+0x70/0x2b8 [ 58.936032][ T4936] kill_block_super+0x44/0x90 [ 58.936836][ T4936] ext4_kill_sb+0x68/0xa4 [ 58.937528][ T4936] deactivate_locked_super+0xc4/0x140 [ 58.938390][ T4936] deactivate_super+0xd8/0xf8 [ 58.939217][ T4936] cleanup_mnt+0x328/0x3b8 [ 58.939939][ T4936] __cleanup_mnt+0x20/0x30 [ 58.940785][ T4936] task_work_run+0x1c4/0x254 [ 58.941629][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 58.942560][ T4936] el0_svc+0x18c/0x260 [ 58.943277][ T4936] el0t_64_sync_handler+0x48/0x148 [ 58.944142][ T4936] el0t_64_sync+0x198/0x19c [ 58.944947][ T4936] irq event stamp: 672254 [ 58.945732][ T4936] hardirqs last enabled at (672253): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 58.947505][ T4936] hardirqs last disabled at (672254): [] el1_brk64+0x20/0x54 [ 58.948959][ T4936] softirqs last enabled at (672182): [] do_sve_acc+0x32c/0x4b8 [ 58.950552][ T4936] softirqs last disabled at (672180): [] do_sve_acc+0x10c/0x4b8 [ 58.952159][ T4936] ---[ end trace 0000000000000000 ]--- 1970/01/01 00:00:58 executed programs: 93 [ 5 ** replaying previous printk message ** [ 58.994384][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 58.994517][ T4936] ------------[ cut here ]------------ [ 58.994523][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 58.999896][ T4936] Modules linked in: [ 59.000541][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 59.002311][ T4936] Tainted: [W]=WARN [ 59.002907][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.004635][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 59.005972][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 59.007036][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 59.008071][ T4936] sp : ffff80009b2f7060 [ 59.008788][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 59.010059][ T4936] x26: ffff0000e328b0f0 x25: ffff0000e328b118 x24: ffff800088a09bc0 [ 59.011421][ T4936] x23: ffff0000c65f0000 x22: 0000000000000381 x21: ffff0000c65f0068 [ 59.012817][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 59.014170][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 59.015530][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 59.016909][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 59.018340][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 59.019746][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 59.021131][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 59.022474][ T4936] Call trace: [ 59.023026][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 59.024234][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 59.025167][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 59.026120][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 59.027019][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 59.027959][ T4936] ext4_dirty_inode+0xd4/0x104 [ 59.028720][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 59.029581][ T4936] sync_lazytime+0x1a8/0x68c [ 59.030361][ T4936] iput+0x1cc/0xb90 [ 59.031027][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 59.031907][ T4936] __dentry_kill+0x170/0x5fc [ 59.032701][ T4936] shrink_kill+0xe8/0x318 [ 59.033459][ T4936] shrink_dentry_list+0x154/0x2a4 [ 59.034374][ T4936] shrink_dcache_tree+0x40c/0x570 [ 59.035258][ T4936] do_one_tree+0x24/0x58 [ 59.035956][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 59.036915][ T4936] generic_shutdown_super+0x70/0x2b8 [ 59.037792][ T4936] kill_block_super+0x44/0x90 [ 59.038572][ T4936] ext4_kill_sb+0x68/0xa4 [ 59.039298][ T4936] deactivate_locked_super+0xc4/0x140 [ 59.040157][ T4936] deactivate_super+0xd8/0xf8 [ 59.040933][ T4936] cleanup_mnt+0x328/0x3b8 [ 59.041769][ T4936] __cleanup_mnt+0x20/0x30 [ 59.042548][ T4936] task_work_run+0x1c4/0x254 [ 59.043373][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 59.044288][ T4936] el0_svc+0x18c/0x260 [ 59.044966][ T4936] el0t_64_sync_handler+0x48/0x148 [ 59.045808][ T4936] el0t_64_sync+0x198/0x19c [ 59.046576][ T4936] irq event stamp: 677970 [ 59.047321][ T4936] hardirqs last enabled at (677969): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 59.049002][ T4936] hardirqs last disabled at (677970): [] el1_brk64+0x20/0x54 [ 59.050407][ T4936] softirqs last enabled at (677892): [] do_sve_acc+0x32c/0x4b8 [ 59.051952][ T4936] softirqs last disabled at (677890): [] do_sve_acc+0x10c/0x4b8 [ 59.053436][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 59.086985][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 59.087103][ T4936] ------------[ cut here ]------------ [ 59.087107][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 59.092639][ T4936] Modules linked in: [ 59.093321][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 59.095107][ T4936] Tainted: [W]=WARN [ 59.095745][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.097476][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 59.098914][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 59.100048][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 59.101228][ T4936] sp : ffff80009b2f7060 [ 59.101936][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 59.103398][ T4936] x26: ffff0000e3260b90 x25: ffff0000e3260bb8 x24: ffff800088a09bc0 [ 59.104773][ T4936] x23: ffff0000c5558000 x22: 0000000000000381 x21: ffff0000c5558068 [ 59.106168][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 59.107506][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 59.108830][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 59.110192][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 59.111675][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 59.113077][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 59.114507][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 59.115843][ T4936] Call trace: [ 59.116368][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 59.117523][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 59.118445][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 59.119460][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 59.120389][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 59.121332][ T4936] ext4_dirty_inode+0xd4/0x104 [ 59.122162][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 59.123087][ T4936] sync_lazytime+0x1a8/0x68c [ 59.123867][ T4936] iput+0x1cc/0xb90 [ 59.124531][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 59.125372][ T4936] __dentry_kill+0x170/0x5fc [ 59.126110][ T4936] shrink_kill+0xe8/0x318 [ 59.126859][ T4936] shrink_dentry_list+0x154/0x2a4 [ 59.127794][ T4936] shrink_dcache_tree+0x40c/0x570 [ 59.128617][ T4936] do_one_tree+0x24/0x58 [ 59.129329][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 59.130260][ T4936] generic_shutdown_super+0x70/0x2b8 [ 59.131172][ T4936] kill_block_super+0x44/0x90 [ 59.131980][ T4936] ext4_kill_sb+0x68/0xa4 [ 59.132715][ T4936] deactivate_locked_super+0xc4/0x140 [ 59.133634][ T4936] deactivate_super+0xd8/0xf8 [ 59.134391][ T4936] cleanup_mnt+0x328/0x3b8 [ 59.135150][ T4936] __cleanup_mnt+0x20/0x30 [ 59.135963][ T4936] task_work_run+0x1c4/0x254 [ 59.136766][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 59.137715][ T4936] el0_svc+0x18c/0x260 [ 59.138421][ T4936] el0t_64_sync_handler+0x48/0x148 [ 59.139308][ T4936] el0t_64_sync+0x198/0x19c [ 59.140080][ T4936] irq event stamp: 683628 [ 59.140812][ T4936] hardirqs last enabled at (683627): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 59.142544][ T4936] hardirqs last disabled at (683628): [] el1_brk64+0x20/0x54 [ 59.144025][ T4936] softirqs last enabled at (683560): [] do_sve_acc+0x32c/0x4b8 [ 59.145641][ T4936] softirqs last disabled at (683558): [] do_sve_acc+0x10c/0x4b8 [ 59.147232][ T4936] ---[ end trace 0000000000000000 ]--- [ 59.177372][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 59.177498][ T4936] ------------[ cut here ]------------ [ 59.177504][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#1: syz-executor.0/4936 [ 59.182188][ T4936] Modules linked in: [ 59.182855][ T4936] CPU: 1 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 59.184679][ T4936] Tainted: [W]=WARN [ 59.185316][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.186977][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 59.188268][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 59.189371][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 59.190560][ T4936] sp : ffff80009b2f7060 [ 59.191245][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 59.192695][ T4936] x26: ffff0000e3298b90 x25: ffff0000e3298bb8 x24: ffff800088a09bc0 [ 59.194151][ T4936] x23: ffff0000c61f0000 x22: 0000000000000381 x21: ffff0000c61f0068 [ 59.195522][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bfbe20 [ 59.196884][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 59.198196][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 59.199560][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 59.200933][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 59.202274][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 59.203625][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 59.205014][ T4936] Call trace: [ 59.205554][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 59.206660][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 59.207566][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 59.208586][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 59.209525][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 59.210545][ T4936] ext4_dirty_inode+0xd4/0x104 [ 59.211383][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 59.212287][ T4936] sync_lazytime+0x1a8/0x68c [ 59.213059][ T4936] iput+0x1cc/0xb90 [ 59.213711][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 59.214627][ T4936] __dentry_kill+0x170/0x5fc [ 59.215401][ T4936] shrink_kill+0xe8/0x318 [ 59.216102][ T4936] shrink_dentry_list+0x154/0x2a4 [ 59.216922][ T4936] shrink_dcache_tree+0x40c/0x570 [ 59.217767][ T4936] do_one_tree+0x24/0x58 [ 59.218501][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 59.219440][ T4936] generic_shutdown_super+0x70/0x2b8 [ 59.220382][ T4936] kill_block_super+0x44/0x90 [ 59.221191][ T4936] ext4_kill_sb+0x68/0xa4 [ 59.221924][ T4936] deactivate_locked_super+0xc4/0x140 [ 59.222851][ T4936] deactivate_super+0xd8/0xf8 [ 59.223651][ T4936] cleanup_mnt+0x328/0x3b8 [ 59.224387][ T4936] __cleanup_mnt+0x20/0x30 [ 59.225145][ T4936] task_work_run+0x1c4/0x254 [ 59.225931][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 59.226847][ T4936] el0_svc+0x18c/0x260 [ 59.227474][ T4936] el0t_64_sync_handler+0x48/0x148 [ 59.228335][ T4936] el0t_64_sync+0x198/0x19c [ 59.229088][ T4936] irq event stamp: 688638 [ 59.229806][ T4936] hardirqs last enabled at (688637): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 59.231489][ T4936] hardirqs last disabled at (688638): [] el1_brk64+0x20/0x54 [ 59.232930][ T4936] softirqs last enabled at (688568): [] do_sve_acc+0x32c/0x4b8 [ 59.234423][ T4936] softirqs last disabled at (688566): [] do_sve_acc+0x10c/0x4b8 [ 59.235977][ T4936] ---[ end trace 0000000000000000 ]--- [ 59.269704][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 59.271851][ T4936] ------------[ cut here ]------------ [ 59.271859][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 59.274693][ T4936] Modules linked in: [ 59.275331][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 59.277154][ T4936] Tainted: [W]=WARN [ 59.277783][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.279460][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 59.280744][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 59.281889][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 59.283004][ T4936] sp : ffff80009b2f7060 [ 59.283790][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 59.285238][ T4936] x26: ffff0000e32630f0 x25: ffff0000e3263118 x24: ffff800088a09bc0 [ 59.286635][ T4936] x23: ffff0000d6a9c000 x22: 0000000000000381 x21: ffff0000d6a9c068 [ 59.288064][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 59.289519][ T4936] x17: ffff80008897b000 x16: ffff800088a2dc60 x15: ffff0001a5fba10c [ 59.290921][ T4936] x14: ffff0001a5fba108 x13: 0000000000000001 x12: 0000000000000000 [ 59.292310][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 59.293590][ T4936] x8 : 00000000000000f8 x7 : 0000000000000000 x6 : 0000000000000000 [ 59.294847][ T4936] x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080487f48 [ 59.296173][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 59.297554][ T4936] Call trace: [ 59.298091][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 59.299132][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 59.300007][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 59.300971][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 59.301891][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 59.302779][ T4936] ext4_dirty_inode+0xd4/0x104 [ 59.303599][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 59.304453][ T4936] sync_lazytime+0x1a8/0x68c [ 59.305210][ T4936] iput+0x1cc/0xb90 [ 59.305861][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 59.306733][ T4936] __dentry_kill+0x170/0x5fc [ 59.307471][ T4936] shrink_kill+0xe8/0x318 [ 59.308190][ T4936] shrink_dentry_list+0x154/0x2a4 [ 59.309025][ T4936] shrink_dcache_tree+0x40c/0x570 [ 59.309893][ T4936] do_one_tree+0x24/0x58 [ 59.310592][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 59.311500][ T4936] generic_shutdown_super+0x70/0x2b8 [ 59.312416][ T4936] kill_block_super+0x44/0x90 [ 59.313206][ T4936] ext4_kill_sb+0x68/0xa4 [ 59.313970][ T4936] deactivate_locked_super+0xc4/0x140 [ 59.314941][ T4936] deactivate_super+0xd8/0xf8 [ 59.315804][ T4936] cleanup_mnt+0x328/0x3b8 [ 59.316572][ T4936] __cleanup_mnt+0x20/0x30 [ 59.317362][ T4936] task_work_run+0x1c4/0x254 [ 59.318158][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 59.319087][ T4936] el0_svc+0x18c/0x260 [ 59.319792][ T4936] el0t_64_sync_handler+0x48/0x148 [ 59.320665][ T4936] el0t_64_sync+0x198/0x19c [ 59.321442][ T4936] irq event stamp: 695082 [ 59.322225][ T4936] hardirqs last enabled at (695081): [] finish_task_switch+0x22c/0x768 [ 59.323833][ T4936] hardirqs last disabled at (695082): [] el1_brk64+0x20/0x54 [ 59.325325][ T4936] softirqs last enabled at (695006): [] do_sve_acc+0x32c/0x4b8 [ 59.326918][ T4936] softirqs last disabled at (695004): [] do_sve_acc+0x10c/0x4b8 [ 59.328471][ T4936] ---[ end trace 0000000000000000 ]--- [ 59.363721][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 59.363850][ T4936] ------------[ cut here ]------------ [ 59.363856][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 59.368644][ T4936] Modules linked in: [ 59.369354][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 59.371147][ T4936] Tainted: [W]=WARN [ 59.371837][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.373548][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 59.374883][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 59.375997][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 59.377108][ T4936] sp : ffff80009b2f7060 [ 59.377798][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 59.379259][ T4936] x26: ffff0000e32b0b90 x25: ffff0000e32b0bb8 x24: ffff800088a09bc0 [ 59.380735][ T4936] x23: ffff0000db05a000 x22: 0000000000000381 x21: ffff0000db05a068 [ 59.382121][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 0000000000000000 [ 59.383543][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 59.384869][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 59.386271][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 59.387669][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 59.389094][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 59.390521][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 59.391921][ T4936] Call trace: [ 59.392475][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 59.393584][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 59.394422][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 59.395364][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 59.396322][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 59.397260][ T4936] ext4_dirty_inode+0xd4/0x104 [ 59.398063][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 59.398933][ T4936] sync_lazytime+0x1a8/0x68c [ 59.399744][ T4936] iput+0x1cc/0xb90 [ 59.400403][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 59.401325][ T4936] __dentry_kill+0x170/0x5fc [ 59.402149][ T4936] shrink_kill+0xe8/0x318 [ 59.402891][ T4936] shrink_dentry_list+0x154/0x2a4 [ 59.403759][ T4936] shrink_dcache_tree+0x40c/0x570 [ 59.404665][ T4936] do_one_tree+0x24/0x58 [ 59.405417][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 59.406424][ T4936] generic_shutdown_super+0x70/0x2b8 [ 59.407339][ T4936] kill_block_super+0x44/0x90 [ 59.408185][ T4936] ext4_kill_sb+0x68/0xa4 [ 59.408947][ T4936] deactivate_locked_super+0xc4/0x140 [ 59.409866][ T4936] deactivate_super+0xd8/0xf8 [ 59.410616][ T4936] cleanup_mnt+0x328/0x3b8 [ 59.411388][ T4936] __cleanup_mnt+0x20/0x30 [ 59.412130][ T4936] task_work_run+0x1c4/0x254 [ 59.412924][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 59.413864][ T4936] el0_svc+0x18c/0x260 [ 59.414567][ T4936] el0t_64_sync_handler+0x48/0x148 [ 59.415476][ T4936] el0t_64_sync+0x198/0x19c [ 59.416248][ T4936] irq event stamp: 700364 [ 59.416965][ T4936] hardirqs last enabled at (700363): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 59.418638][ T4936] hardirqs last disabled at (700364): [] el1_brk64+0x20/0x54 [ 59.420230][ T4936] softirqs last enabled at (700292): [] do_sve_acc+0x32c/0x4b8 [ 59.421833][ T4936] softirqs last disabled at (700290): [] do_sve_acc+0x10c/0x4b8 [ 59.423350][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 59.474167][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 59.474282][ T4936] ------------[ cut here ]------------ [ 59.474287][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 59.479684][ T4936] Modules linked in: [ 59.480357][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 59.482253][ T4936] Tainted: [W]=WARN [ 59.482902][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.484522][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 59.485949][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 59.487007][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 59.488167][ T4936] sp : ffff80009b2f7060 [ 59.488913][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 59.490326][ T4936] x26: ffff0000dd13dfa8 x25: ffff0000dd13dfd0 x24: ffff800088a09bc0 [ 59.491722][ T4936] x23: ffff0000c85b2000 x22: 0000000000000381 x21: ffff0000c85b2068 [ 59.493139][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 59.494497][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 59.495882][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 59.497318][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 59.498718][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 59.500015][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 59.501318][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 59.502513][ T4936] Call trace: [ 59.503037][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 59.504142][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 59.505077][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 59.506086][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 59.507052][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 59.507960][ T4936] ext4_dirty_inode+0xd4/0x104 [ 59.508809][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 59.509682][ T4936] sync_lazytime+0x1a8/0x68c [ 59.510495][ T4936] iput+0x1cc/0xb90 [ 59.511172][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 59.512069][ T4936] __dentry_kill+0x170/0x5fc [ 59.512882][ T4936] shrink_kill+0xe8/0x318 [ 59.513663][ T4936] shrink_dentry_list+0x154/0x2a4 [ 59.514530][ T4936] shrink_dcache_tree+0x40c/0x570 [ 59.515397][ T4936] do_one_tree+0x24/0x58 [ 59.516162][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 59.517124][ T4936] generic_shutdown_super+0x70/0x2b8 [ 59.518063][ T4936] kill_block_super+0x44/0x90 [ 59.518850][ T4936] ext4_kill_sb+0x68/0xa4 [ 59.519596][ T4936] deactivate_locked_super+0xc4/0x140 [ 59.520517][ T4936] deactivate_super+0xd8/0xf8 [ 59.521329][ T4936] cleanup_mnt+0x328/0x3b8 [ 59.522135][ T4936] __cleanup_mnt+0x20/0x30 [ 59.522888][ T4936] task_work_run+0x1c4/0x254 [ 59.523668][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 59.524597][ T4936] el0_svc+0x18c/0x260 [ 59.525338][ T4936] el0t_64_sync_handler+0x48/0x148 [ 59.526189][ T4936] el0t_64_sync+0x198/0x19c [ 59.526950][ T4936] irq event stamp: 705766 [ 59.527707][ T4936] hardirqs last enabled at (705765): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 59.529484][ T4936] hardirqs last disabled at (705766): [] el1_brk64+0x20/0x54 [ 59.530996][ T4936] softirqs last enabled at (705696): [] do_sve_acc+0x32c/0x4b8 [ 59.532636][ T4936] softirqs last disabled at (705694): [] do_sve_acc+0x10c/0x4b8 [ 59.534231][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 59.575476][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 59.575589][ T4936] ------------[ cut here ]------------ [ 59.575593][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 59.581103][ T4936] Modules linked in: [ 59.581808][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT [ 59.583660][ T4936] Tainted: [W]=WARN [ 59.584293][ T4936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 59.585954][ T4936] pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) [ 59.587339][ T4936] pc : ext4_xattr_inode_lookup_create+0x768/0x12b8 [ 59.588474][ T4936] lr : ext4_xattr_inode_lookup_create+0x764/0x12b8 [ 59.589549][ T4936] sp : ffff80009b2f7060 [ 59.590253][ T4936] x29: ffff80009b2f71a0 x28: 000000004bf205ef x27: 0000000000000001 [ 59.591594][ T4936] x26: ffff0000e31c7258 x25: ffff0000e31c7280 x24: ffff800088a09bc0 [ 59.592881][ T4936] x23: ffff0000c9c3a000 x22: 0000000000000381 x21: ffff0000c9c3a068 [ 59.594188][ T4936] x20: ffff70001365ee1c x19: dfff800000000000 x18: 1fffe00034bf7420 [ 59.595561][ T4936] x17: 6572203a31383431 x16: 3a6574616572635f x15: 65646f6e695f7274 [ 59.596904][ T4936] x14: 7461785f34747865 x13: 0000000000000001 x12: 0000000000000000 [ 59.598222][ T4936] x11: 0000000000000000 x10: 0000000000ff0100 x9 : 968acbf6e9903700 [ 59.599579][ T4936] x8 : 00000000000000f8 x7 : ffff80008047d308 x6 : 0000000000000000 [ 59.601000][ T4936] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080487f48 [ 59.602380][ T4936] x2 : 0000000100000000 x1 : ffff0000cd219d00 x0 : 0000000000000066 [ 59.603810][ T4936] Call trace: [ 59.604352][ T4936] ext4_xattr_inode_lookup_create+0x768/0x12b8 (P) [ 59.605439][ T4936] ext4_xattr_block_set+0x1c0/0x2188 [ 59.606320][ T4936] ext4_expand_extra_isize_ea+0xb18/0x13a0 [ 59.607369][ T4936] __ext4_expand_extra_isize+0x29c/0x370 [ 59.608336][ T4936] __ext4_mark_inode_dirty+0x3a4/0x810 [ 59.609329][ T4936] ext4_dirty_inode+0xd4/0x104 [ 59.610102][ T4936] __mark_inode_dirty+0x354/0x1a10 [ 59.611039][ T4936] sync_lazytime+0x1a8/0x68c [ 59.611841][ T4936] iput+0x1cc/0xb90 [ 59.612514][ T4936] dentry_unlink_inode+0x3a8/0x484 [ 59.613356][ T4936] __dentry_kill+0x170/0x5fc [ 59.614143][ T4936] shrink_kill+0xe8/0x318 [ 59.614911][ T4936] shrink_dentry_list+0x154/0x2a4 [ 59.615784][ T4936] shrink_dcache_tree+0x40c/0x570 [ 59.616623][ T4936] do_one_tree+0x24/0x58 [ 59.617345][ T4936] shrink_dcache_for_umount+0xa0/0x168 [ 59.618282][ T4936] generic_shutdown_super+0x70/0x2b8 [ 59.619191][ T4936] kill_block_super+0x44/0x90 [ 59.619981][ T4936] ext4_kill_sb+0x68/0xa4 [ 59.620679][ T4936] deactivate_locked_super+0xc4/0x140 [ 59.621639][ T4936] deactivate_super+0xd8/0xf8 [ 59.622452][ T4936] cleanup_mnt+0x328/0x3b8 [ 59.623223][ T4936] __cleanup_mnt+0x20/0x30 [ 59.623961][ T4936] task_work_run+0x1c4/0x254 [ 59.624693][ T4936] exit_to_user_mode_loop+0x10c/0x17c [ 59.625645][ T4936] el0_svc+0x18c/0x260 [ 59.626348][ T4936] el0t_64_sync_handler+0x48/0x148 [ 59.627285][ T4936] el0t_64_sync+0x198/0x19c [ 59.628043][ T4936] irq event stamp: 710688 [ 59.628795][ T4936] hardirqs last enabled at (710687): [] arm64_exit_to_kernel_mode+0x80/0x94 [ 59.630586][ T4936] hardirqs last disabled at (710688): [] el1_brk64+0x20/0x54 [ 59.632180][ T4936] softirqs last enabled at (710616): [] do_sve_acc+0x32c/0x4b8 [ 59.633735][ T4936] softirqs last disabled at (710614): [] do_sve_acc+0x10c/0x4b8 [ 59.635327][ T4936] ---[ end trace 0000000000000000 ]--- [ 5 ** replaying previous printk message ** [ 59.681822][ T4936] EXT4-fs warning (device loop0): ext4_xattr_inode_create:1481: refuse to create EA inode when umounting [ 59.681935][ T4936] ------------[ cut here ]------------ [ 59.681940][ T4936] WARNING: fs/ext4/xattr.c:1482 at ext4_xattr_inode_lookup_create+0x768/0x12b8, CPU#0: syz-executor.0/4936 [ 59.687036][ T4936] Modules linked in: [ 59.687738][ T4936] CPU: 0 UID: 0 PID: 4936 Comm: syz-executor.0 Tainted: G W syzkaller #0 PREEMPT