etdevsim6 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 437.279217][ T1145] netdevsim netdevsim6 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 437.313465][ T51] Bluetooth: hci3: command tx timeout
[ 437.313504][ T6267] Bluetooth: hci5: command tx timeout
[ 437.375770][ T7867] netdevsim netdevsim3 netdevsim0: renamed from eth0
[ 437.393514][ T6267] Bluetooth: hci2: command tx timeout
[ 437.409730][ T1145] netdevsim netdevsim6 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 437.464257][ T7867] netdevsim netdevsim3 netdevsim1: renamed from eth1
[ 437.511032][ T7867] netdevsim netdevsim3 netdevsim2: renamed from eth2
[ 437.563333][ T7867] netdevsim netdevsim3 netdevsim3: renamed from eth3
[ 437.606819][ T7774] 8021q: adding VLAN 0 to HW filter on device bond0
[ 437.804662][ T7774] 8021q: adding VLAN 0 to HW filter on device team0
[ 437.815792][ T1145] bridge_slave_1: left allmulticast mode
[ 437.821560][ T1145] bridge_slave_1: left promiscuous mode
[ 437.834869][ T1145] bridge0: port 2(bridge_slave_1) entered disabled state
[ 437.846357][ T1145] bridge_slave_0: left allmulticast mode
[ 437.852028][ T1145] bridge_slave_0: left promiscuous mode
[ 437.866178][ T1145] bridge0: port 1(bridge_slave_0) entered disabled state
[ 437.879040][ T1145] bridge_slave_1: left allmulticast mode
[ 437.885845][ T1145] bridge_slave_1: left promiscuous mode
[ 437.891910][ T1145] bridge0: port 2(bridge_slave_1) entered disabled state
[ 437.901867][ T1145] bridge_slave_0: left allmulticast mode
[ 437.908060][ T1145] bridge_slave_0: left promiscuous mode
[ 437.915780][ T1145] bridge0: port 1(bridge_slave_0) entered disabled state
[ 437.928598][ T1145] bridge_slave_1: left allmulticast mode
[ 437.935365][ T1145] bridge_slave_1: left promiscuous mode
[ 437.941234][ T1145] bridge0: port 2(bridge_slave_1) entered disabled state
[ 437.951355][ T1145] bridge_slave_0: left allmulticast mode
[ 437.959692][ T1145] bridge_slave_0: left promiscuous mode
[ 437.965797][ T1145] bridge0: port 1(bridge_slave_0) entered disabled state
[ 438.394449][ T1145] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 438.407093][ T1145] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 438.419127][ T1145] bond0 (unregistering): Released all slaves
[ 438.707306][ T1145] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 438.720525][ T1145] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 438.730377][ T1145] bond0 (unregistering): Released all slaves
[ 438.937839][ T1145] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 438.948564][ T1145] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 438.958563][ T1145] bond0 (unregistering): Released all slaves
[ 438.969746][ T7775] 8021q: adding VLAN 0 to HW filter on device bond0
[ 439.016154][ T6960] bridge0: port 1(bridge_slave_0) entered blocking state
[ 439.023448][ T6960] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 439.101175][ T6960] bridge0: port 2(bridge_slave_1) entered blocking state
[ 439.108508][ T6960] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 439.151178][ T7775] 8021q: adding VLAN 0 to HW filter on device team0
[ 439.200205][ T6641] bridge0: port 1(bridge_slave_0) entered blocking state
[ 439.207764][ T6641] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 439.239888][ T6641] bridge0: port 2(bridge_slave_1) entered blocking state
[ 439.247160][ T6641] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 439.422653][ T7867] 8021q: adding VLAN 0 to HW filter on device bond0
[ 439.475737][ T6267] Bluetooth: hci2: command tx timeout
[ 439.588830][ T7867] 8021q: adding VLAN 0 to HW filter on device team0
[ 439.640882][ T6960] bridge0: port 1(bridge_slave_0) entered blocking state
[ 439.648200][ T6960] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 439.692145][ T6960] bridge0: port 2(bridge_slave_1) entered blocking state
[ 439.699472][ T6960] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 439.712341][ T7886] netdevsim netdevsim5 netdevsim0: renamed from eth0
[ 439.789623][ T7886] netdevsim netdevsim5 netdevsim1: renamed from eth1
[ 439.821682][ T7886] netdevsim netdevsim5 netdevsim2: renamed from eth2
[ 439.854018][ T7886] netdevsim netdevsim5 netdevsim3: renamed from eth3
[ 439.919328][ T1145] hsr_slave_0: left promiscuous mode
[ 439.927201][ T1145] hsr_slave_1: left promiscuous mode
[ 439.936078][ T1145] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 439.944988][ T1145] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 439.953217][ T1145] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 439.960714][ T1145] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 439.971733][ T1145] hsr_slave_0: left promiscuous mode
[ 439.978251][ T1145] hsr_slave_1: left promiscuous mode
[ 439.984834][ T1145] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 439.992491][ T1145] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 440.000912][ T1145] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 440.009218][ T1145] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 440.019889][ T1145] hsr_slave_0: left promiscuous mode
[ 440.026343][ T1145] hsr_slave_1: left promiscuous mode
[ 440.033489][ T1145] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 440.041780][ T1305] ieee802154 phy0 wpan0: encryption failed: -22
[ 440.048537][ T1145] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 440.056392][ T1305] ieee802154 phy1 wpan1: encryption failed: -22
[ 440.065489][ T1145] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 440.073284][ T1145] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 440.103133][ T1145] veth1_macvtap: left promiscuous mode
[ 440.108704][ T1145] veth0_macvtap: left promiscuous mode
[ 440.115825][ T1145] veth1_vlan: left promiscuous mode
[ 440.121320][ T1145] veth0_vlan: left promiscuous mode
[ 440.127808][ T1145] veth1_macvtap: left promiscuous mode
[ 440.133380][ T1145] veth0_macvtap: left promiscuous mode
[ 440.139317][ T1145] veth1_vlan: left promiscuous mode
[ 440.145018][ T1145] veth0_vlan: left promiscuous mode
[ 440.151287][ T1145] veth1_macvtap: left promiscuous mode
[ 440.156970][ T1145] veth0_macvtap: left promiscuous mode
[ 440.162562][ T1145] veth1_vlan: left promiscuous mode
[ 440.168334][ T1145] veth0_vlan: left promiscuous mode
[ 440.672565][ T1145] team0 (unregistering): Port device team_slave_1 removed
[ 440.710381][ T1145] team0 (unregistering): Port device team_slave_0 removed
[ 441.288477][ T1145] team0 (unregistering): Port device team_slave_1 removed
[ 441.318844][ T1145] team0 (unregistering): Port device team_slave_0 removed
[ 441.562861][ T6267] Bluetooth: hci2: command tx timeout
[ 441.885992][ T1145] team0 (unregistering): Port device team_slave_1 removed
[ 441.918715][ T1145] team0 (unregistering): Port device team_slave_0 removed
[ 442.277376][ T7915] netdevsim netdevsim1 netdevsim0: renamed from eth0
[ 442.299684][ T7915] netdevsim netdevsim1 netdevsim1: renamed from eth1
[ 442.317642][ T7774] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 442.330835][ T7915] netdevsim netdevsim1 netdevsim2: renamed from eth2
[ 442.353457][ T7915] netdevsim netdevsim1 netdevsim3: renamed from eth3
[ 442.428777][ T7775] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 442.786762][ T7886] 8021q: adding VLAN 0 to HW filter on device bond0
[ 442.871637][ T7915] 8021q: adding VLAN 0 to HW filter on device bond0
[ 442.888822][ T7886] 8021q: adding VLAN 0 to HW filter on device team0
[ 442.901251][ T7867] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 442.960808][ T7915] 8021q: adding VLAN 0 to HW filter on device team0
[ 442.985855][ T49] bridge0: port 1(bridge_slave_0) entered blocking state
[ 442.993058][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 443.028874][ T7774] veth0_vlan: entered promiscuous mode
[ 443.039305][ T49] bridge0: port 2(bridge_slave_1) entered blocking state
[ 443.046526][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 443.056035][ T49] bridge0: port 1(bridge_slave_0) entered blocking state
[ 443.063230][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 443.072367][ T49] bridge0: port 2(bridge_slave_1) entered blocking state
[ 443.079664][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 443.126293][ T7774] veth1_vlan: entered promiscuous mode
[ 443.248646][ T7774] veth0_macvtap: entered promiscuous mode
[ 443.259440][ T7867] veth0_vlan: entered promiscuous mode
[ 443.306690][ T7774] veth1_macvtap: entered promiscuous mode
[ 443.325877][ T7775] veth0_vlan: entered promiscuous mode
[ 443.338809][ T7775] veth1_vlan: entered promiscuous mode
[ 443.349275][ T7867] veth1_vlan: entered promiscuous mode
[ 443.419008][ T7774] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 443.466222][ T7774] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 443.519952][ T6960] netdevsim netdevsim4 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 443.544521][ T7775] veth0_macvtap: entered promiscuous mode
[ 443.556706][ T6960] netdevsim netdevsim4 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 443.585765][ T6960] netdevsim netdevsim4 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 443.600374][ T6960] netdevsim netdevsim4 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 443.617224][ T7775] veth1_macvtap: entered promiscuous mode
[ 443.635363][ T7867] veth0_macvtap: entered promiscuous mode
[ 443.652476][ T7867] veth1_macvtap: entered promiscuous mode
[ 443.702533][ T7775] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 443.719632][ T7775] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 443.736182][ T7886] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 443.746978][ T7867] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 443.763514][ T7867] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 443.778163][ T7915] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 443.801574][ T1106] netdevsim netdevsim9 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 443.851576][ T1106] netdevsim netdevsim9 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 443.866303][ T1106] netdevsim netdevsim9 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 443.882867][ T1106] netdevsim netdevsim9 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 443.902177][ T1106] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 443.913590][ T1145] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 443.931461][ T1106] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 443.947961][ T1145] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 443.959671][ T1145] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 443.970086][ T1145] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 444.095622][ T1145] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 444.107745][ T6639] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 444.116133][ T1145] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 444.126562][ T6639] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 444.156655][ T7915] veth0_vlan: entered promiscuous mode
[ 444.163676][ T7774] EXT4-fs warning: 2 callbacks suppressed
[ 444.163692][ T7774] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2155: comm syz-executor: ext4_cache_extents: caching extents
[ 444.163692][ T7774]
[ 444.210272][ T6960] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 444.212155][ T7915] veth1_vlan: entered promiscuous mode
[ 444.227383][ T6960] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 444.236299][ T7774] EXT4-fs warning (device sda1): ext4_es_cache_extent:1045: inode #2155: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:4294967295 pblk:18446744073709551615 status:0x8
[ 444.236299][ T7774]
[ 444.273480][ T7774] EXT4-fs warning (device sda1): __es_insert_extent:852: inode #2155: comm syz-executor: __es_insert_extent: add lblk:0 len:4294967295 pblk:576460752303423487 status:0x8]
[ 444.273480][ T7774]
[ 444.306029][ T7774] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2155: comm syz-executor: ext4_cache_extents: caching extents
[ 444.306029][ T7774]
[ 444.310009][ T6641] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 444.336426][ T6641] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 444.354619][ T7774] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6274: inode #2155: comm syz-executor: ext4_mb_new_blocks: Allocation requested for: lblk:0 len:1
[ 444.354619][ T7774]
[ 444.384134][ T7774] EXT4-fs warning (device sda1): ext4_mb_regular_allocator:3120: inode #2155: comm syz-executor: ext4_mb_regular_allocator: Best len 1, origin len 1, ac_status 2, ac_flags 0x0, cr 1 ret 0
[ 444.384134][ T7774]
[ 444.395084][ T7775] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2156: comm syz-executor: ext4_cache_extents: caching extents
[ 444.395084][ T7775]
[ 444.405266][ T7774] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6363: inode #2155: comm syz-executor: ext4_mb_new_blocks: Allocation found: lblk:0, len:1, pblk:5844
[ 444.405266][ T7774]
[ 444.424784][ T7775] EXT4-fs warning (device sda1): ext4_es_cache_extent:1045: inode #2156: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:4294967295 pblk:18446744073709551615 status:0x8
[ 444.424784][ T7775]
[ 444.459325][ T7915] veth0_macvtap: entered promiscuous mode
[ 444.464235][ T7915] veth1_macvtap: entered promiscuous mode
[ 444.480262][ T7774] EXT4-fs warning (device sda1): ext4_ext_map_blocks:4488: inode #2155: comm syz-executor: ext4_ext_map_blocks: add newext [0, 1, 5844, unwrit:0] to extent tree.
[ 444.480262][ T7774]
[ 444.496259][ T7915] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 444.520391][ T6641] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 444.529982][ T6641] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 444.552067][ T7886] veth0_vlan: entered promiscuous mode
2026/02/11 10:02:04 executed programs: 55
[ 444.585985][ T7915] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 444.648369][ T7886] veth1_vlan: entered promiscuous mode
[ 444.694872][ T8130] loop9: detected capacity change from 0 to 1024
[ 444.724584][ T4342] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 444.737622][ T8131] loop4: detected capacity change from 0 to 1024
[ 444.770929][ T4342] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 444.801320][ T8133] loop3: detected capacity change from 0 to 1024
[ 444.810618][ T8131] EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 444.824497][ T8130] EXT4-fs (loop9): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 444.885349][ T8139] EXT4-fs warning (device loop4): ext4_cache_extents:532: inode #2: comm syz.4.61: ext4_cache_extents: caching extents
[ 444.885349][ T8139]
[ 444.898870][ T4342] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 444.908823][ T8139] CPU: 1 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 444.908845][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 444.908855][ T8139] Call Trace:
[ 444.908862][ T8139]
[ 444.908869][ T8139] dump_stack_lvl+0xe8/0x150
[ 444.908893][ T8139] ext4_cache_extents+0x31a/0x340
[ 444.908913][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 444.908948][ T8139] ext4_find_extent+0x3a9/0xa20
[ 444.908972][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 444.909002][ T8139] ? lock_acquire+0x106/0x330
[ 444.909034][ T8139] ? finish_task_switch+0x23c/0x920
[ 444.909051][ T8139] ? look_up_lock_class+0x57/0x110
[ 444.909072][ T8139] ? register_lock_class+0x31/0x2e0
[ 444.909095][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 444.909118][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 444.909160][ T8139] ext4_map_query_blocks+0x13b/0xa00
[ 444.909182][ T8139] ? ext4_map_blocks+0x42c/0x11d0
[ 444.909210][ T8139] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 444.909239][ T8139] ? down_read+0x272/0x2e0
[ 444.909257][ T8139] ? ext4_map_blocks+0x259/0x11d0
[ 444.909281][ T8139] ext4_map_blocks+0x444/0x11d0
[ 444.909300][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 444.909326][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 444.909351][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 444.909378][ T8139] ext4_getblk+0x1ca/0x780
[ 444.909405][ T8139] ? __pfx_ext4_getblk+0x10/0x10
[ 444.909428][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 444.909454][ T8139] ext4_bread_batch+0x67/0x4b0
[ 444.909482][ T8139] __ext4_find_entry+0x10ec/0x1ce0
[ 444.909523][ T8139] ? __pfx___ext4_find_entry+0x10/0x10
[ 444.909548][ T8139] ? ext4_fname_prepare_lookup+0x3dc/0x4f0
[ 444.909577][ T8139] ? __memcg_slab_post_alloc_hook+0x6af/0x8d0
[ 444.909604][ T8139] ext4_lookup+0x17b/0x710
[ 444.909631][ T8139] ? __pfx_ext4_lookup+0x10/0x10
[ 444.909649][ T8139] ? do_raw_spin_lock+0x12b/0x2f0
[ 444.909675][ T8139] ? do_raw_spin_unlock+0xf5/0x210
[ 444.909694][ T8139] ? _raw_spin_unlock+0x28/0x50
[ 444.909717][ T8139] ? d_alloc+0x144/0x190
[ 444.909737][ T8139] lookup_one_qstr_excl+0x131/0x360
[ 444.909759][ T8139] do_unlinkat+0x1d6/0x590
[ 444.909786][ T8139] ? __pfx_do_unlinkat+0x10/0x10
[ 444.909804][ T8139] ? kmem_cache_alloc_noprof+0x3bd/0x6e0
[ 444.909824][ T8139] ? getname_kernel+0x146/0x2f0
[ 444.909845][ T8139] ? getname_kernel+0x20d/0x2f0
[ 444.909862][ T8139] vfs_coredump+0x2132/0x4270
[ 444.909899][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 444.909915][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 444.909936][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 444.909964][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 444.909989][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 444.910015][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 444.910047][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 444.910062][ T8139] ? lock_acquire+0x106/0x330
[ 444.910085][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 444.910104][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 444.910119][ T8139] ? lock_acquire+0x106/0x330
[ 444.910147][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 444.910167][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 444.910183][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 444.910202][ T8139] ? kernel_text_address+0xa5/0xe0
[ 444.910221][ T8139] ? __kernel_text_address+0xd/0x30
[ 444.910238][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 444.910253][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 444.910271][ T8139] ? arch_stack_walk+0xfb/0x150
[ 444.910299][ T8139] ? stack_trace_save+0xa9/0x100
[ 444.910316][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 444.910335][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 444.910358][ T8139] ? kasan_save_track+0x4f/0x80
[ 444.910376][ T8139] ? kasan_save_track+0x3e/0x80
[ 444.910394][ T8139] ? kasan_save_free_info+0x46/0x50
[ 444.910411][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 444.910423][ T8139] ? kmem_cache_free+0x195/0x610
[ 444.910436][ T8139] ? get_signal+0xa4a/0x1330
[ 444.910453][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 444.910492][ T8139] ? irqentry_exit+0x176/0x620
[ 444.910508][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 444.910582][ T8139] get_signal+0x1107/0x1330
[ 444.910622][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 444.910645][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 444.910683][ T8139] irqentry_exit+0x176/0x620
[ 444.910702][ T8139] ? trace_irq_disable+0x37/0x100
[ 444.910732][ T8139] asm_exc_page_fault+0x26/0x30
[ 444.910746][ T8139] RIP: 0033:0x0
[ 444.910759][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 444.910768][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 444.910783][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 444.910794][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 444.910804][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 444.910815][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 444.910824][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 444.910852][ T8139]
[ 444.910861][ T8139] EXT4-fs warning (device loop4): ext4_es_cache_extent:1045: inode #2: comm syz.4.61: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 444.910861][ T8139]
[ 444.980891][ T8141] EXT4-fs warning (device loop9): ext4_cache_extents:532: inode #2: comm syz.9.50: ext4_cache_extents: caching extents
[ 444.980891][ T8141]
[ 445.048355][ T8139] EXT4-fs warning (device loop4): __es_insert_extent:852: inode #2: comm syz.4.61: __es_insert_extent: add lblk:0 len:1 pblk:16 status:0x1]
[ 445.048355][ T8139]
[ 445.062392][ T8141] CPU: 0 UID: 0 PID: 8141 Comm: syz.9.50 Not tainted syzkaller #0 PREEMPT(full)
[ 445.062416][ T8141] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.062426][ T8141] Call Trace:
[ 445.062434][ T8141]
[ 445.062441][ T8141] dump_stack_lvl+0xe8/0x150
[ 445.062464][ T8141] ext4_cache_extents+0x31a/0x340
[ 445.062483][ T8141] ? ext4_find_extent+0x2e3/0xa20
[ 445.062505][ T8141] ext4_find_extent+0x3a9/0xa20
[ 445.062530][ T8141] ext4_ext_map_blocks+0x27a/0x5730
[ 445.062554][ T8141] ? __lock_acquire+0x6b5/0x2cf0
[ 445.062583][ T8141] ? unwind_next_frame+0xa5/0x23c0
[ 445.062606][ T8141] ? unwind_next_frame+0xa5/0x23c0
[ 445.062620][ T8141] ? look_up_lock_class+0x57/0x110
[ 445.062640][ T8141] ? register_lock_class+0x31/0x2e0
[ 445.062664][ T8141] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.062690][ T8141] ? __lock_acquire+0x6b5/0x2cf0
[ 445.062730][ T8141] ? kernel_text_address+0xa5/0xe0
[ 445.062756][ T8141] ext4_map_query_blocks+0x13b/0xa00
[ 445.062777][ T8141] ? ext4_map_blocks+0x42c/0x11d0
[ 445.062804][ T8141] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 445.062833][ T8141] ? down_read+0x272/0x2e0
[ 445.062851][ T8141] ? ext4_map_blocks+0x259/0x11d0
[ 445.062874][ T8141] ext4_map_blocks+0x444/0x11d0
[ 445.062893][ T8141] ? kasan_save_track+0x3e/0x80
[ 445.062912][ T8141] ? kasan_save_free_info+0x46/0x50
[ 445.062929][ T8141] ? __kasan_slab_free+0x5c/0x80
[ 445.062945][ T8141] ? do_filp_open+0x22d/0x490
[ 445.062968][ T8141] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.063004][ T8141] ext4_getblk+0x1ca/0x780
[ 445.063031][ T8141] ? __pfx_ext4_getblk+0x10/0x10
[ 445.063053][ T8141] ? __lock_acquire+0x6b5/0x2cf0
[ 445.063080][ T8141] ext4_bread_batch+0x67/0x4b0
[ 445.063107][ T8141] __ext4_find_entry+0x10ec/0x1ce0
[ 445.063147][ T8141] ? __pfx___ext4_find_entry+0x10/0x10
[ 445.063172][ T8141] ? ext4_fname_prepare_lookup+0x3dc/0x4f0
[ 445.063209][ T8141] ext4_lookup+0x17b/0x710
[ 445.063229][ T8141] ? d_alloc_parallel+0x366/0x1610
[ 445.063249][ T8141] ? apparmor_path_mknod+0x33d/0x410
[ 445.063268][ T8141] ? __pfx_ext4_lookup+0x10/0x10
[ 445.063302][ T8141] ? inode_permission+0x2fd/0x5f0
[ 445.063318][ T8141] ? bpf_lsm_inode_create+0x9/0x20
[ 445.063336][ T8141] path_openat+0x13bc/0x3e20
[ 445.063384][ T8141] ? getname_flags+0xb7/0x540
[ 445.063400][ T8141] ? __pfx_path_openat+0x10/0x10
[ 445.063438][ T8141] do_filp_open+0x22d/0x490
[ 445.063459][ T8141] ? __pfx_do_filp_open+0x10/0x10
[ 445.063500][ T8141] ? _raw_spin_unlock+0x28/0x50
[ 445.063515][ T8141] ? alloc_fd+0x64b/0x6c0
[ 445.063541][ T8141] do_sys_openat2+0x12f/0x220
[ 445.063558][ T8141] ? _raw_spin_unlock_irq+0x2e/0x50
[ 445.063576][ T8141] ? __pfx_do_sys_openat2+0x10/0x10
[ 445.063594][ T8141] ? exc_page_fault+0x6a/0xc0
[ 445.063615][ T8141] ? do_user_addr_fault+0xc7c/0x1360
[ 445.063638][ T8141] __x64_sys_openat+0x138/0x170
[ 445.063661][ T8141] do_syscall_64+0xe2/0xf80
[ 445.063687][ T8141] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 445.063707][ T8141] ? trace_irq_disable+0x37/0x100
[ 445.063720][ T8141] ? clear_bhb_loop+0x60/0xb0
[ 445.063739][ T8141] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 445.063754][ T8141] RIP: 0033:0x7f01e919aeb9
[ 445.063769][ T8141] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 445.063783][ T8141] RSP: 002b:00007f01e9fa9028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 445.063801][ T8141] RAX: ffffffffffffffda RBX: 00007f01e9416090 RCX: 00007f01e919aeb9
[ 445.063812][ T8141] RDX: 0000000000143042 RSI: 0000200000000040 RDI: ffffffffffffff9c
[ 445.063823][ T8141] RBP: 00007f01e9208c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.063833][ T8141] R10: 00000000000000b5 R11: 0000000000000246 R12: 0000000000000000
[ 445.063843][ T8141] R13: 00007f01e9416128 R14: 00007f01e9416090 R15: 00007ffcff28dcc8
[ 445.063871][ T8141]
[ 445.070796][ T8141] EXT4-fs warning (device loop9): ext4_es_cache_extent:1045: inode #2: comm syz.9.50: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 445.070796][ T8141]
[ 445.143167][ T8139] EXT4-fs warning (device loop4): ext4_es_cache_extent:1045: inode #2: comm syz.4.61: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 445.143167][ T8139]
[ 445.152500][ T4342] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 445.170964][ T8133] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 445.190089][ T7886] veth0_macvtap: entered promiscuous mode
[ 445.283506][ T8141] EXT4-fs warning (device loop9): __es_insert_extent:852: inode #2: comm syz.9.50: __es_insert_extent: add lblk:0 len:1 pblk:16 status:0x1]
[ 445.283506][ T8141]
[ 445.311590][ T8146] EXT4-fs warning (device loop3): ext4_cache_extents:532: inode #2: comm syz.3.63: ext4_cache_extents: caching extents
[ 445.311590][ T8146]
[ 445.405122][ T8141] EXT4-fs warning (device loop9): ext4_es_cache_extent:1045: inode #2: comm syz.9.50: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 445.405122][ T8141]
[ 445.429078][ T7886] veth1_macvtap: entered promiscuous mode
[ 445.685696][ T30] audit: type=1800 audit(1770804125.908:9): pid=8141 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed comm="syz.9.50" name="file1" dev="loop9" ino=15 res=0 errno=0
[ 445.695135][ T8145] CPU: 0 UID: 0 PID: 8145 Comm: syz.9.50 Not tainted syzkaller #0 PREEMPT(full)
[ 445.695157][ T8145] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.695167][ T8145] Call Trace:
[ 445.695174][ T8145]
[ 445.695182][ T8145] dump_stack_lvl+0xe8/0x150
[ 445.695206][ T8145] ext4_es_remove_extent+0x33b/0x4e0
[ 445.695234][ T8145] ext4_ext_truncate+0x16a/0x2f0
[ 445.695259][ T8145] ext4_truncate+0xb63/0x1300
[ 445.695284][ T8145] ? unmap_mapping_range+0xe6/0x180
[ 445.695306][ T8145] ? __pfx_ext4_truncate+0x10/0x10
[ 445.695327][ T8145] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.695354][ T8145] ext4_setattr+0x1017/0x1bc0
[ 445.695383][ T8145] ? __pfx_ext4_setattr+0x10/0x10
[ 445.695401][ T8145] notify_change+0xc1a/0xf40
[ 445.695433][ T8145] do_truncate+0x1c2/0x250
[ 445.695456][ T8145] ? __pfx_do_truncate+0x10/0x10
[ 445.695473][ T8145] ? filp_open+0x198/0x1f0
[ 445.695503][ T8145] ? getname_kernel+0x20d/0x2f0
[ 445.695521][ T8145] vfs_coredump+0x3712/0x4270
[ 445.695558][ T8145] ? __pfx_vfs_coredump+0x10/0x10
[ 445.695572][ T8145] ? __lock_acquire+0x6b5/0x2cf0
[ 445.695594][ T8145] ? __lock_acquire+0x6b5/0x2cf0
[ 445.695621][ T8145] ? __lock_acquire+0x6b5/0x2cf0
[ 445.695645][ T8145] ? __lock_acquire+0x6b5/0x2cf0
[ 445.695666][ T8145] ? __lock_acquire+0x6b5/0x2cf0
[ 445.695694][ T8145] ? unwind_next_frame+0xa5/0x23c0
[ 445.695709][ T8145] ? lock_acquire+0x106/0x330
[ 445.695733][ T8145] ? unwind_next_frame+0xa5/0x23c0
[ 445.695751][ T8145] ? is_bpf_text_address+0x26/0x2b0
[ 445.695767][ T8145] ? lock_acquire+0x106/0x330
[ 445.695794][ T8145] ? is_bpf_text_address+0x26/0x2b0
[ 445.695815][ T8145] ? is_bpf_text_address+0x292/0x2b0
[ 445.695829][ T8145] ? is_bpf_text_address+0x26/0x2b0
[ 445.695848][ T8145] ? kernel_text_address+0xa5/0xe0
[ 445.695867][ T8145] ? __kernel_text_address+0xd/0x30
[ 445.695883][ T8145] ? unwind_get_return_address+0x4d/0x90
[ 445.695899][ T8145] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.695924][ T8145] ? arch_stack_walk+0xfb/0x150
[ 445.695951][ T8145] ? stack_trace_save+0xa9/0x100
[ 445.695968][ T8145] ? __pfx_stack_trace_save+0x10/0x10
[ 445.695987][ T8145] ? stack_depot_save_flags+0x33/0x810
[ 445.696010][ T8145] ? kasan_save_track+0x4f/0x80
[ 445.696029][ T8145] ? kasan_save_track+0x3e/0x80
[ 445.696047][ T8145] ? kasan_save_free_info+0x46/0x50
[ 445.696064][ T8145] ? __kasan_slab_free+0x5c/0x80
[ 445.696077][ T8145] ? kmem_cache_free+0x195/0x610
[ 445.696090][ T8145] ? get_signal+0xa4a/0x1330
[ 445.696107][ T8145] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.696125][ T8145] ? irqentry_exit+0x176/0x620
[ 445.696142][ T8145] ? asm_exc_page_fault+0x26/0x30
[ 445.696210][ T8145] ? _raw_spin_unlock_irq+0x23/0x50
[ 445.696230][ T8145] get_signal+0x1107/0x1330
[ 445.696270][ T8145] arch_do_signal_or_restart+0xbc/0x830
[ 445.696292][ T8145] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.696331][ T8145] irqentry_exit+0x176/0x620
[ 445.696350][ T8145] ? trace_irq_disable+0x37/0x100
[ 445.696369][ T8145] asm_exc_page_fault+0x26/0x30
[ 445.696383][ T8145] RIP: 0033:0x0
[ 445.696396][ T8145] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.696405][ T8145] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.696420][ T8145] RAX: 0000000000000000 RBX: 00007f01e9415fa0 RCX: 00007f01e919aeb9
[ 445.696431][ T8145] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.696441][ T8145] RBP: 00007f01e9208c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.696451][ T8145] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.696461][ T8145] R13: 00007f01e9416038 R14: 00007f01e9415fa0 R15: 00007ffcff28dcc8
[ 445.696489][ T8145]
[ 445.696498][ T8145] EXT4-fs warning (device loop9): ext4_es_remove_extent:1658: inode #18: comm syz.9.50: ext4_es_remove_extent: remove lblk:0 len:4294967295 from es
[ 445.696498][ T8145]
[ 445.701186][ T8139] CPU: 1 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.701208][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.701218][ T8139] Call Trace:
[ 445.701225][ T8139]
[ 445.701232][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.701255][ T8139] ext4_es_remove_extent+0x33b/0x4e0
[ 445.701284][ T8139] ext4_ext_truncate+0x16a/0x2f0
[ 445.701308][ T8139] ext4_truncate+0xb63/0x1300
[ 445.701332][ T8139] ? unmap_mapping_range+0xe6/0x180
[ 445.701354][ T8139] ? __pfx_ext4_truncate+0x10/0x10
[ 445.701376][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.701402][ T8139] ext4_setattr+0x1017/0x1bc0
[ 445.701432][ T8139] ? __pfx_ext4_setattr+0x10/0x10
[ 445.701450][ T8139] notify_change+0xc1a/0xf40
[ 445.701481][ T8139] do_truncate+0x1c2/0x250
[ 445.701504][ T8139] ? __pfx_do_truncate+0x10/0x10
[ 445.701522][ T8139] ? filp_open+0x198/0x1f0
[ 445.701551][ T8139] ? getname_kernel+0x20d/0x2f0
[ 445.701570][ T8139] vfs_coredump+0x3712/0x4270
[ 445.701606][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.701622][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.701644][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.701680][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.701705][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.701725][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.701754][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.701769][ T8139] ? lock_acquire+0x106/0x330
[ 445.701793][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.701811][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.701827][ T8139] ? lock_acquire+0x106/0x330
[ 445.701854][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.701875][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.701890][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.701909][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.701927][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.701944][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.701958][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.701976][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.702002][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.702018][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.702037][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.702060][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.702079][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.702097][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.702114][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.702126][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.702139][ T8139] ? get_signal+0xa4a/0x1330
[ 445.702156][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.702174][ T8139] ? irqentry_exit+0x176/0x620
[ 445.702191][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.702265][ T8139] get_signal+0x1107/0x1330
[ 445.702304][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.702326][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.702365][ T8139] irqentry_exit+0x176/0x620
[ 445.702384][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.702403][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.702417][ T8139] RIP: 0033:0x0
[ 445.702430][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.702438][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.702453][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.702464][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.702474][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.702484][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.702494][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.702522][ T8139]
[ 445.702530][ T8139] EXT4-fs warning (device loop4): ext4_es_remove_extent:1658: inode #18: comm syz.4.61: ext4_es_remove_extent: remove lblk:0 len:4294967295 from es
[ 445.702530][ T8139]
[ 445.705367][ T8145] EXT4-fs warning (device loop9): __es_remove_extent:1512: inode #18: comm syz.9.50: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 445.705367][ T8145]
[ 445.709964][ T8146] CPU: 1 UID: 0 PID: 8146 Comm: syz.3.63 Not tainted syzkaller #0 PREEMPT(full)
[ 445.709985][ T8146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.709995][ T8146] Call Trace:
[ 445.710002][ T8146]
[ 445.710010][ T8146] dump_stack_lvl+0xe8/0x150
[ 445.710033][ T8146] ext4_cache_extents+0x31a/0x340
[ 445.710052][ T8146] ? ext4_find_extent+0x2e3/0xa20
[ 445.710075][ T8146] ext4_find_extent+0x3a9/0xa20
[ 445.710101][ T8146] ext4_ext_map_blocks+0x27a/0x5730
[ 445.710137][ T8146] ? __lock_acquire+0x6b5/0x2cf0
[ 445.710162][ T8146] ? look_up_lock_class+0x57/0x110
[ 445.710182][ T8146] ? register_lock_class+0x31/0x2e0
[ 445.710204][ T8146] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.710227][ T8146] ? __lock_acquire+0x6b5/0x2cf0
[ 445.710267][ T8146] ext4_map_query_blocks+0x13b/0xa00
[ 445.710288][ T8146] ? ext4_map_blocks+0x42c/0x11d0
[ 445.710314][ T8146] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 445.710342][ T8146] ? down_read+0x272/0x2e0
[ 445.710360][ T8146] ? ext4_map_blocks+0x259/0x11d0
[ 445.710383][ T8146] ext4_map_blocks+0x444/0x11d0
[ 445.710402][ T8146] ? unwind_next_frame+0xa5/0x23c0
[ 445.710429][ T8146] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.710454][ T8146] ? __lock_acquire+0x6b5/0x2cf0
[ 445.710481][ T8146] ext4_getblk+0x1ca/0x780
[ 445.710508][ T8146] ? __pfx_ext4_getblk+0x10/0x10
[ 445.710530][ T8146] ? __lock_acquire+0x6b5/0x2cf0
[ 445.710557][ T8146] ext4_bread_batch+0x67/0x4b0
[ 445.710585][ T8146] __ext4_find_entry+0x10ec/0x1ce0
[ 445.710624][ T8146] ? __pfx___ext4_find_entry+0x10/0x10
[ 445.710649][ T8146] ? ext4_fname_prepare_lookup+0x3dc/0x4f0
[ 445.710684][ T8146] ? __memcg_slab_post_alloc_hook+0x6af/0x8d0
[ 445.710711][ T8146] ext4_lookup+0x17b/0x710
[ 445.710737][ T8146] ? __pfx_ext4_lookup+0x10/0x10
[ 445.710755][ T8146] ? do_raw_spin_lock+0x12b/0x2f0
[ 445.710782][ T8146] ? do_raw_spin_unlock+0xf5/0x210
[ 445.710801][ T8146] ? _raw_spin_unlock+0x28/0x50
[ 445.710816][ T8146] ? d_alloc+0x144/0x190
[ 445.710837][ T8146] lookup_one_qstr_excl+0x131/0x360
[ 445.710859][ T8146] do_unlinkat+0x1d6/0x590
[ 445.710886][ T8146] ? __pfx_do_unlinkat+0x10/0x10
[ 445.710904][ T8146] ? kmem_cache_alloc_noprof+0x3bd/0x6e0
[ 445.710925][ T8146] ? getname_kernel+0x146/0x2f0
[ 445.710945][ T8146] ? getname_kernel+0x20d/0x2f0
[ 445.710962][ T8146] vfs_coredump+0x2132/0x4270
[ 445.711001][ T8146] ? __pfx_vfs_coredump+0x10/0x10
[ 445.711016][ T8146] ? __lock_acquire+0x6b5/0x2cf0
[ 445.711037][ T8146] ? __lock_acquire+0x6b5/0x2cf0
[ 445.711066][ T8146] ? __lock_acquire+0x6b5/0x2cf0
[ 445.711091][ T8146] ? __lock_acquire+0x6b5/0x2cf0
[ 445.711112][ T8146] ? __lock_acquire+0x6b5/0x2cf0
[ 445.711138][ T8146] ? unwind_next_frame+0xa5/0x23c0
[ 445.711153][ T8146] ? lock_acquire+0x106/0x330
[ 445.711176][ T8146] ? unwind_next_frame+0xa5/0x23c0
[ 445.711195][ T8146] ? is_bpf_text_address+0x26/0x2b0
[ 445.711210][ T8146] ? lock_acquire+0x106/0x330
[ 445.711237][ T8146] ? is_bpf_text_address+0x26/0x2b0
[ 445.711257][ T8146] ? is_bpf_text_address+0x292/0x2b0
[ 445.711273][ T8146] ? is_bpf_text_address+0x26/0x2b0
[ 445.711292][ T8146] ? kernel_text_address+0xa5/0xe0
[ 445.711310][ T8146] ? __kernel_text_address+0xd/0x30
[ 445.711327][ T8146] ? unwind_get_return_address+0x4d/0x90
[ 445.711342][ T8146] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.711359][ T8146] ? arch_stack_walk+0xfb/0x150
[ 445.711387][ T8146] ? stack_trace_save+0xa9/0x100
[ 445.711404][ T8146] ? __pfx_stack_trace_save+0x10/0x10
[ 445.711422][ T8146] ? stack_depot_save_flags+0x33/0x810
[ 445.711445][ T8146] ? kasan_save_track+0x4f/0x80
[ 445.711463][ T8146] ? kasan_save_track+0x3e/0x80
[ 445.711481][ T8146] ? kasan_save_free_info+0x46/0x50
[ 445.711497][ T8146] ? __kasan_slab_free+0x5c/0x80
[ 445.711510][ T8146] ? kmem_cache_free+0x195/0x610
[ 445.711522][ T8146] ? get_signal+0xa4a/0x1330
[ 445.711538][ T8146] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.711557][ T8146] ? irqentry_exit+0x176/0x620
[ 445.711573][ T8146] ? asm_exc_page_fault+0x26/0x30
[ 445.711640][ T8146] ? _raw_spin_unlock_irq+0x23/0x50
[ 445.711661][ T8146] get_signal+0x1107/0x1330
[ 445.711705][ T8146] arch_do_signal_or_restart+0xbc/0x830
[ 445.711727][ T8146] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.711766][ T8146] irqentry_exit+0x176/0x620
[ 445.711785][ T8146] ? trace_irq_disable+0x37/0x100
[ 445.711804][ T8146] asm_exc_page_fault+0x26/0x30
[ 445.711819][ T8146] RIP: 0033:0x0
[ 445.711831][ T8146] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.711839][ T8146] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.711853][ T8146] RAX: 0000000000000000 RBX: 00007fd506215fa0 RCX: 00007fd505f9aeb9
[ 445.711864][ T8146] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.711874][ T8146] RBP: 00007fd506008c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.711884][ T8146] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.711894][ T8146] R13: 00007fd506216038 R14: 00007fd506215fa0 R15: 00007ffc30a5b528
[ 445.711928][ T8146]
[ 445.711937][ T8146] EXT4-fs warning (device loop3): ext4_es_cache_extent:1045: inode #2: comm syz.3.63: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 445.711937][ T8146]
[ 445.740144][ T7774] EXT4-fs warning (device loop4): ext4_cache_extents:532: inode #11: comm syz-executor: ext4_cache_extents: caching extents
[ 445.740144][ T7774]
[ 445.752790][ T30] audit: type=1800 audit(1770804126.038:10): pid=8131 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed comm="syz.4.61" name="file1" dev="loop4" ino=15 res=0 errno=0
[ 445.759024][ T8145] EXT4-fs warning (device loop9): ext4_ext_remove_space:2857: inode #18: comm syz.9.50: ext4_ext_remove_space: remove range [0, 4294967294] from extent tree
[ 445.759024][ T8145]
[ 445.813456][ T7774] CPU: 1 UID: 0 PID: 7774 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 445.813480][ T7774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.813492][ T7774] Call Trace:
[ 445.813499][ T7774]
[ 445.813507][ T7774] dump_stack_lvl+0xe8/0x150
[ 445.813531][ T7774] ext4_cache_extents+0x31a/0x340
[ 445.813551][ T7774] ? ext4_find_extent+0x2e3/0xa20
[ 445.813573][ T7774] ext4_find_extent+0x3a9/0xa20
[ 445.813599][ T7774] ext4_ext_map_blocks+0x27a/0x5730
[ 445.813626][ T7774] ? __page_table_check_zero+0x6a/0x3e0
[ 445.813671][ T7774] ? __page_table_check_zero+0x6a/0x3e0
[ 445.813694][ T7774] ? look_up_lock_class+0x57/0x110
[ 445.813714][ T7774] ? register_lock_class+0x31/0x2e0
[ 445.813741][ T7774] ? look_up_lock_class+0x57/0x110
[ 445.813761][ T7774] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.813783][ T7774] ? __lock_acquire+0x6b5/0x2cf0
[ 445.813812][ T7774] ? lock_acquire+0x106/0x330
[ 445.813839][ T7774] ext4_map_query_blocks+0x13b/0xa00
[ 445.813864][ T7774] ? ext4_map_blocks+0x42c/0x11d0
[ 445.813892][ T7774] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 445.813921][ T7774] ? down_read+0x272/0x2e0
[ 445.813938][ T7774] ? ext4_map_blocks+0x259/0x11d0
[ 445.813961][ T7774] ext4_map_blocks+0x444/0x11d0
[ 445.813993][ T7774] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.814030][ T7774] ext4_readdir+0xaf0/0x4000
[ 445.814076][ T7774] ? __pfx_ext4_readdir+0x10/0x10
[ 445.814091][ T7774] ? handle_mm_fault+0x2ca8/0x32a0
[ 445.814115][ T7774] ? iterate_dir+0x292/0x570
[ 445.814148][ T7774] ? iterate_dir+0x292/0x570
[ 445.814166][ T7774] ? down_read_killable+0x1bb/0x340
[ 445.814205][ T7774] iterate_dir+0x399/0x570
[ 445.814229][ T7774] __se_sys_getdents64+0xf1/0x280
[ 445.814252][ T7774] ? __pfx___se_sys_getdents64+0x10/0x10
[ 445.814270][ T7774] ? exc_page_fault+0x6a/0xc0
[ 445.814286][ T7774] ? __pfx_filldir64+0x10/0x10
[ 445.814309][ T7774] ? do_user_addr_fault+0xc7c/0x1360
[ 445.814340][ T7774] do_syscall_64+0xe2/0xf80
[ 445.814358][ T7774] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 445.814373][ T7774] ? trace_irq_disable+0x37/0x100
[ 445.814387][ T7774] ? clear_bhb_loop+0x60/0xb0
[ 445.814405][ T7774] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 445.814420][ T7774] RIP: 0033:0x7f7d203c3873
[ 445.814435][ T7774] Code: c7 c0 e8 ff ff ff 64 c7 00 16 00 00 00 31 c0 eb 9e e8 81 9b fd ff 90 b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 c7 c2 e8 ff ff ff f7 d8
[ 445.814449][ T7774] RSP: 002b:00007fff12d15fb8 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9
[ 445.814466][ T7774] RAX: ffffffffffffffda RBX: 000055555c3e3a70 RCX: 00007f7d203c3873
[ 445.814478][ T7774] RDX: 0000000000008000 RSI: 000055555c3e3aa0 RDI: 0000000000000006
[ 445.814489][ T7774] RBP: 000055555c3e3aa0 R08: 00007f7d205e4cc0 R09: 0000000000000001
[ 445.814499][ T7774] R10: 0000000000000000 R11: 0000000000000293 R12: 000055555c3e3a74
[ 445.814509][ T7774] R13: ffffffffffffffe8 R14: 0000000000000016 R15: 00007fff12d19350
[ 445.814536][ T7774]
[ 445.814557][ T7774] EXT4-fs warning (device loop4): ext4_es_cache_extent:1045: inode #11: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:11 pblk:32 status:0x1
[ 445.814557][ T7774]
[ 445.819420][ T8139] EXT4-fs warning (device loop4): __es_remove_extent:1512: inode #18: comm syz.4.61: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 445.819420][ T8139]
[ 445.841390][ T8146] EXT4-fs warning (device loop3): __es_insert_extent:852: inode #2: comm syz.3.63: __es_insert_extent: add lblk:0 len:1 pblk:16 status:0x1]
[ 445.841390][ T8146]
[ 445.856428][ T8139] EXT4-fs warning (device loop4): ext4_ext_remove_space:2857: inode #18: comm syz.4.61: ext4_ext_remove_space: remove range [0, 4294967294] from extent tree
[ 445.856428][ T8139]
[ 445.858129][ T8139] EXT4-fs warning (device loop4): ext4_cache_extents:532: inode #18: comm syz.4.61: ext4_cache_extents: caching extents
[ 445.858129][ T8139]
[ 445.918885][ T8145] EXT4-fs warning (device loop9): ext4_cache_extents:532: inode #18: comm syz.9.50: ext4_cache_extents: caching extents
[ 445.918885][ T8145]
[ 445.933550][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.933573][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.933583][ T8139] Call Trace:
[ 445.933590][ T8139]
[ 445.933597][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.933621][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.933642][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.933665][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.933691][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.933724][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.933746][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.933762][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.933781][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.933806][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.933828][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.933871][ T8139] ext4_map_query_blocks+0x13b/0xa00
[ 445.933900][ T8139] ? ext4_map_blocks+0x42c/0x11d0
[ 445.933928][ T8139] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 445.933957][ T8139] ? down_read+0x272/0x2e0
[ 445.933975][ T8139] ? ext4_map_blocks+0x259/0x11d0
[ 445.933998][ T8139] ext4_map_blocks+0x444/0x11d0
[ 445.934031][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.934058][ T8139] ? rcu_is_watching+0x15/0xb0
[ 445.934087][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.934111][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.934135][ T8139] ? do_raw_spin_unlock+0xf5/0x210
[ 445.934155][ T8139] ? _raw_spin_unlock+0x28/0x50
[ 445.934174][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.934198][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.934229][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.934251][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.934269][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.934291][ T8139] ext4_convert_inline_data_to_extent+0x670/0xde0
[ 445.934326][ T8139] ? __pfx_ext4_convert_inline_data_to_extent+0x10/0x10
[ 445.934349][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.934372][ T8139] ? ext4_try_to_write_inline_data+0x49/0xa0
[ 445.934395][ T8139] ext4_write_begin+0x357/0x1870
[ 445.934412][ T8139] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 445.934434][ T8139] ? __ext4_mark_inode_dirty+0x4c8/0x6e0
[ 445.934458][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.934487][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.934504][ T8139] ? __ext4_journal_stop+0x34/0x1a0
[ 445.934524][ T8139] ? ext4_write_inline_data_end+0x8f6/0xad0
[ 445.934547][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.934582][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.934599][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.934627][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.934656][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.934674][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.934697][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.934715][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.934736][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.934763][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.934778][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.934797][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.934815][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.934829][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.934845][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.934864][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.934890][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.934921][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.934948][ T8139] ? __asan_memset+0x22/0x50
[ 445.934967][ T8139] ? iov_iter_kvec+0xb8/0x180
[ 445.934989][ T8139] __kernel_write+0x106/0x170
[ 445.935011][ T8139] ? __pfx___kernel_write+0x10/0x10
[ 445.935050][ T8139] dump_emit+0x8e9/0xab0
[ 445.935078][ T8139] ? __pfx_dump_emit+0x10/0x10
[ 445.935096][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.935111][ T8139] ? __kmalloc_cache_noprof+0x3d1/0x6e0
[ 445.935141][ T8139] elf_core_dump+0x2e5d/0x3ad0
[ 445.935178][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.935196][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.935215][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.935233][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.935245][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.935259][ T8139] ? coredump_write+0x381/0x1950
[ 445.935273][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.935287][ T8139] ? get_signal+0x1107/0x1330
[ 445.935304][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.935323][ T8139] ? irqentry_exit+0x176/0x620
[ 445.935339][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.935357][ T8139] ? mas_ascend+0x304/0x890
[ 445.935413][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.935446][ T8139] coredump_write+0x1219/0x1950
[ 445.935481][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.935514][ T8139] ? unshare_files+0xa8/0x140
[ 445.935534][ T8139] vfs_coredump+0x369e/0x4270
[ 445.935571][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.935586][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.935608][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.935637][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.935661][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.935682][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.935711][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.935724][ T8139] ? lock_acquire+0x106/0x330
[ 445.935748][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.935766][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.935781][ T8139] ? lock_acquire+0x106/0x330
[ 445.935809][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.935829][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.935844][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.935863][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.935882][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.935904][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.935919][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.935936][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.935964][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.935981][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.936000][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.936021][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.936040][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.936058][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.936074][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.936087][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.936099][ T8139] ? get_signal+0xa4a/0x1330
[ 445.936116][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.936134][ T8139] ? irqentry_exit+0x176/0x620
[ 445.936150][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.936225][ T8139] get_signal+0x1107/0x1330
[ 445.936265][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.936287][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.936327][ T8139] irqentry_exit+0x176/0x620
[ 445.936347][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.936366][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.936380][ T8139] RIP: 0033:0x0
[ 445.936394][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.936402][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.936417][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.936428][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.936439][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.936448][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.936458][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.936487][ T8139]
[ 445.936575][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.936592][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.936601][ T8139] Call Trace:
[ 445.936607][ T8139]
[ 445.936612][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.936631][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.936647][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.936670][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.936696][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.936713][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.936735][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.936754][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.936775][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.936801][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.936833][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.936857][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.936905][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.936932][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.936965][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.936992][ T8139] ? rcu_is_watching+0x15/0xb0
[ 445.937021][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.937044][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.937069][ T8139] ? do_raw_spin_unlock+0xf5/0x210
[ 445.937089][ T8139] ? _raw_spin_unlock+0x28/0x50
[ 445.937108][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.937131][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.937162][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.937184][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.937204][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.937225][ T8139] ext4_convert_inline_data_to_extent+0x670/0xde0
[ 445.937261][ T8139] ? __pfx_ext4_convert_inline_data_to_extent+0x10/0x10
[ 445.937285][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.937308][ T8139] ? ext4_try_to_write_inline_data+0x49/0xa0
[ 445.937331][ T8139] ext4_write_begin+0x357/0x1870
[ 445.937348][ T8139] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 445.937371][ T8139] ? __ext4_mark_inode_dirty+0x4c8/0x6e0
[ 445.937395][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.937422][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.937439][ T8139] ? __ext4_journal_stop+0x34/0x1a0
[ 445.937460][ T8139] ? ext4_write_inline_data_end+0x8f6/0xad0
[ 445.937483][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.937518][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.937535][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.937562][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.937592][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.937610][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.937632][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.937651][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.937672][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.937698][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.937714][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.937733][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.937751][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.937765][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.937781][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.937798][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.937822][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.937848][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.937875][ T8139] ? __asan_memset+0x22/0x50
[ 445.937898][ T8139] ? iov_iter_kvec+0xb8/0x180
[ 445.937919][ T8139] __kernel_write+0x106/0x170
[ 445.937941][ T8139] ? __pfx___kernel_write+0x10/0x10
[ 445.937980][ T8139] dump_emit+0x8e9/0xab0
[ 445.938008][ T8139] ? __pfx_dump_emit+0x10/0x10
[ 445.938025][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.938041][ T8139] ? __kmalloc_cache_noprof+0x3d1/0x6e0
[ 445.938070][ T8139] elf_core_dump+0x2e5d/0x3ad0
[ 445.938105][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.938124][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.938142][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.938160][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.938173][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.938186][ T8139] ? coredump_write+0x381/0x1950
[ 445.938200][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.938214][ T8139] ? get_signal+0x1107/0x1330
[ 445.938231][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.938248][ T8139] ? irqentry_exit+0x176/0x620
[ 445.938264][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.938282][ T8139] ? mas_ascend+0x304/0x890
[ 445.938337][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.938370][ T8139] coredump_write+0x1219/0x1950
[ 445.938405][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.938439][ T8139] ? unshare_files+0xa8/0x140
[ 445.938457][ T8139] vfs_coredump+0x369e/0x4270
[ 445.938495][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.938510][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.938532][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.938560][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.938585][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.938607][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.938635][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.938648][ T8139] ? lock_acquire+0x106/0x330
[ 445.938673][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.938691][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.938706][ T8139] ? lock_acquire+0x106/0x330
[ 445.938733][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.938754][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.938770][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.938789][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.938807][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.938824][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.938838][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.938855][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.938883][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.938904][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.938924][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.938945][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.938963][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.938982][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.938998][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.939010][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.939023][ T8139] ? get_signal+0xa4a/0x1330
[ 445.939040][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.939057][ T8139] ? irqentry_exit+0x176/0x620
[ 445.939073][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.939149][ T8139] get_signal+0x1107/0x1330
[ 445.939189][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.939211][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.939251][ T8139] irqentry_exit+0x176/0x620
[ 445.939270][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.939289][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.939302][ T8139] RIP: 0033:0x0
[ 445.939314][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.939322][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.939336][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.939346][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.939356][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.939366][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.939375][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.939403][ T8139]
[ 445.940070][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.940088][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.940098][ T8139] Call Trace:
[ 445.940104][ T8139]
[ 445.940111][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.940131][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.940149][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.940171][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.940197][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.940233][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.940261][ T8139] ? ext4_sb_block_valid+0x16d/0x560
[ 445.940281][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.940306][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.940348][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.940377][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.940410][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.940445][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.940469][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.940494][ T8139] ? filemap_get_entry+0xca/0x320
[ 445.940517][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.940540][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.940571][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.940592][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.940610][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.940626][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.940647][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.940689][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.940710][ T8139] ? __ext4_mark_inode_dirty+0x4c8/0x6e0
[ 445.940736][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.940770][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.940788][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.940815][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.940843][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.940861][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.940882][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.940927][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.940947][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.940973][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.940989][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.941009][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.941027][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.941041][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.941056][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.941073][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.941098][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.941123][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.941149][ T8139] ? __asan_memset+0x22/0x50
[ 445.941168][ T8139] ? iov_iter_kvec+0xb8/0x180
[ 445.941189][ T8139] __kernel_write+0x106/0x170
[ 445.941211][ T8139] ? __pfx___kernel_write+0x10/0x10
[ 445.941249][ T8139] dump_emit+0x8e9/0xab0
[ 445.941276][ T8139] ? __pfx_dump_emit+0x10/0x10
[ 445.941294][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.941310][ T8139] ? __kmalloc_cache_noprof+0x3d1/0x6e0
[ 445.941340][ T8139] elf_core_dump+0x2e5d/0x3ad0
[ 445.941379][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.941397][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.941416][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.941434][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.941445][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.941458][ T8139] ? coredump_write+0x381/0x1950
[ 445.941472][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.941486][ T8139] ? get_signal+0x1107/0x1330
[ 445.941503][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.941521][ T8139] ? irqentry_exit+0x176/0x620
[ 445.941537][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.941555][ T8139] ? mas_ascend+0x304/0x890
[ 445.941609][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.941641][ T8139] coredump_write+0x1219/0x1950
[ 445.941671][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.941700][ T8139] ? unshare_files+0xa8/0x140
[ 445.941718][ T8139] vfs_coredump+0x369e/0x4270
[ 445.941754][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.941769][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.941791][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.941819][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.941844][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.941865][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.941900][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.941913][ T8139] ? lock_acquire+0x106/0x330
[ 445.941937][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.941956][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.941971][ T8139] ? lock_acquire+0x106/0x330
[ 445.941998][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.942018][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.942034][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.942053][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.942071][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.942087][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.942102][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.942119][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.942146][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.942162][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.942181][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.942204][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.942221][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.942239][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.942256][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.942268][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.942281][ T8139] ? get_signal+0xa4a/0x1330
[ 445.942298][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.942315][ T8139] ? irqentry_exit+0x176/0x620
[ 445.942331][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.942405][ T8139] get_signal+0x1107/0x1330
[ 445.942443][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.942466][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.942505][ T8139] irqentry_exit+0x176/0x620
[ 445.942524][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.942542][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.942557][ T8139] RIP: 0033:0x0
[ 445.942569][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.942577][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.942591][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.942602][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.942612][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.942621][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.942631][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.942658][ T8139]
[ 445.943071][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.943089][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.943098][ T8139] Call Trace:
[ 445.943105][ T8139]
[ 445.943111][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.943131][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.943148][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.943170][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.943196][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.943227][ T8139] ? rcu_is_watching+0x15/0xb0
[ 445.943252][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.943286][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.943303][ T8139] ? ext4_es_insert_extent+0x26ab/0x2fb0
[ 445.943328][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.943370][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.943399][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.943431][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.943468][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.943491][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.943515][ T8139] ? filemap_get_entry+0xca/0x320
[ 445.943539][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.943563][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.943593][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.943615][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.943633][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.943649][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.943670][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.943712][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.943732][ T8139] ? __ext4_mark_inode_dirty+0x4c8/0x6e0
[ 445.943759][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.943793][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.943810][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.943837][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.943867][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.943885][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.943913][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.943932][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.943953][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.943977][ T8139] ? ext4_buffered_write_iter+0x233/0x3a0
[ 445.943996][ T8139] ? ext4_file_write_iter+0x298/0x1bf0
[ 445.944014][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.944034][ T8139] ? look_up_lock_class+0x57/0x110
[ 445.944057][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.944083][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.944109][ T8139] ? __asan_memset+0x22/0x50
[ 445.944128][ T8139] ? iov_iter_kvec+0xb8/0x180
[ 445.944149][ T8139] __kernel_write+0x106/0x170
[ 445.944171][ T8139] ? __pfx___kernel_write+0x10/0x10
[ 445.944196][ T8139] ? do_raw_spin_unlock+0xf5/0x210
[ 445.944215][ T8139] ? _raw_spin_unlock+0x28/0x50
[ 445.944231][ T8139] ? generic_file_llseek_size+0x43e/0x4c0
[ 445.944254][ T8139] dump_emit+0x8e9/0xab0
[ 445.944281][ T8139] ? __pfx_dump_emit+0x10/0x10
[ 445.944298][ T8139] ? dump_emit+0x90b/0xab0
[ 445.944320][ T8139] ? dump_align+0xc5/0x110
[ 445.944338][ T8139] writenote+0x1c0/0x2f0
[ 445.944358][ T8139] ? __pfx_writenote+0x10/0x10
[ 445.944385][ T8139] elf_core_dump+0x2fdd/0x3ad0
[ 445.944420][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.944438][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.944457][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.944475][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.944487][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.944501][ T8139] ? coredump_write+0x381/0x1950
[ 445.944515][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.944529][ T8139] ? get_signal+0x1107/0x1330
[ 445.944546][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.944563][ T8139] ? irqentry_exit+0x176/0x620
[ 445.944580][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.944596][ T8139] ? mas_ascend+0x304/0x890
[ 445.944651][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.944668][ T8139] ? 0xffffffffff600000
[ 445.944694][ T8139] coredump_write+0x1219/0x1950
[ 445.944728][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.944761][ T8139] ? unshare_files+0xa8/0x140
[ 445.944780][ T8139] vfs_coredump+0x369e/0x4270
[ 445.944816][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.944832][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.944854][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.944882][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.944913][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.944934][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.944962][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.944976][ T8139] ? lock_acquire+0x106/0x330
[ 445.945000][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.945018][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.945033][ T8139] ? lock_acquire+0x106/0x330
[ 445.945061][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.945081][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.945096][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.945115][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.945133][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.945150][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.945165][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.945182][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.945209][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.945226][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.945245][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.945267][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.945285][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.945303][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.945319][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.945331][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.945344][ T8139] ? get_signal+0xa4a/0x1330
[ 445.945361][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.945378][ T8139] ? irqentry_exit+0x176/0x620
[ 445.945394][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.945468][ T8139] get_signal+0x1107/0x1330
[ 445.945507][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.945529][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.945568][ T8139] irqentry_exit+0x176/0x620
[ 445.945586][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.945604][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.945619][ T8139] RIP: 0033:0x0
[ 445.945630][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.945639][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.945652][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.945662][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.945672][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.945682][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.945694][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.945723][ T8139]
[ 445.945905][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.945922][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.945931][ T8139] Call Trace:
[ 445.945937][ T8139]
[ 445.945944][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.945963][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.945981][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.945996][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.946019][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.946036][ T8139] ? __es_remove_extent+0x13a1/0x1d30
[ 445.946063][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.946089][ T8139] ? __es_insert_extent+0xb14/0x17b0
[ 445.946117][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.946142][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.946167][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.946191][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.946233][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.946262][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.946294][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.946331][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.946354][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.946378][ T8139] ? filemap_get_entry+0xca/0x320
[ 445.946401][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.946425][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.946456][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.946477][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.946495][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.946510][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.946532][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.946574][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.946594][ T8139] ? __ext4_mark_inode_dirty+0x4c8/0x6e0
[ 445.946620][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.946654][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.946671][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.946699][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.946727][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.946745][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.946767][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.946786][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.946806][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.946830][ T8139] ? ext4_buffered_write_iter+0x233/0x3a0
[ 445.946850][ T8139] ? ext4_file_write_iter+0x298/0x1bf0
[ 445.946868][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.946887][ T8139] ? look_up_lock_class+0x57/0x110
[ 445.946917][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.946942][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.946969][ T8139] ? __asan_memset+0x22/0x50
[ 445.946988][ T8139] ? iov_iter_kvec+0xb8/0x180
[ 445.947008][ T8139] __kernel_write+0x106/0x170
[ 445.947030][ T8139] ? __pfx___kernel_write+0x10/0x10
[ 445.947055][ T8139] ? do_raw_spin_unlock+0xf5/0x210
[ 445.947075][ T8139] ? _raw_spin_unlock+0x28/0x50
[ 445.947090][ T8139] ? generic_file_llseek_size+0x43e/0x4c0
[ 445.947112][ T8139] dump_emit+0x8e9/0xab0
[ 445.947139][ T8139] ? __pfx_dump_emit+0x10/0x10
[ 445.947156][ T8139] ? dump_emit+0x90b/0xab0
[ 445.947178][ T8139] ? dump_align+0xc5/0x110
[ 445.947196][ T8139] writenote+0x1c0/0x2f0
[ 445.947216][ T8139] ? __pfx_writenote+0x10/0x10
[ 445.947243][ T8139] elf_core_dump+0x309a/0x3ad0
[ 445.947278][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.947296][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.947314][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.947332][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.947344][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.947358][ T8139] ? coredump_write+0x381/0x1950
[ 445.947372][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.947386][ T8139] ? get_signal+0x1107/0x1330
[ 445.947403][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.947421][ T8139] ? irqentry_exit+0x176/0x620
[ 445.947437][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.947455][ T8139] ? mas_ascend+0x304/0x890
[ 445.947509][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.947526][ T8139] ? 0xffffffffff600000
[ 445.947552][ T8139] coredump_write+0x1219/0x1950
[ 445.947587][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.947619][ T8139] ? unshare_files+0xa8/0x140
[ 445.947637][ T8139] vfs_coredump+0x369e/0x4270
[ 445.947673][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.947689][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.947710][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.947738][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.947763][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.947784][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.947812][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.947826][ T8139] ? lock_acquire+0x106/0x330
[ 445.947850][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.947868][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.947883][ T8139] ? lock_acquire+0x106/0x330
[ 445.947916][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.947937][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.947953][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.947971][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.947989][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.948006][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.948021][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.948039][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.948066][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.948082][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.948101][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.948123][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.948141][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.948159][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.948175][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.948188][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.948200][ T8139] ? get_signal+0xa4a/0x1330
[ 445.948217][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.948234][ T8139] ? irqentry_exit+0x176/0x620
[ 445.948251][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.948324][ T8139] get_signal+0x1107/0x1330
[ 445.948363][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.948385][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.948423][ T8139] irqentry_exit+0x176/0x620
[ 445.948441][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.948459][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.948473][ T8139] RIP: 0033:0x0
[ 445.948485][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.948493][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.948506][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.948517][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.948527][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.948536][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.948546][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.948574][ T8139]
[ 445.948899][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.948917][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.948926][ T8139] Call Trace:
[ 445.948933][ T8139]
[ 445.948938][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.948963][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.948980][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.949002][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.949028][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.949051][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.949077][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.949106][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.949124][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.949143][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.949163][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.949203][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.949232][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.949265][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.949291][ T8139] ? percpu_ref_get_many+0x19/0x140
[ 445.949315][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.949338][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.949374][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.949397][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.949427][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.949450][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.949467][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.949483][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.949504][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.949546][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.949566][ T8139] ? __ext4_mark_inode_dirty+0x4c8/0x6e0
[ 445.949593][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.949627][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.949644][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.949671][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.949701][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.949718][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.949740][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.949759][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.949780][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.949799][ T8139] ? ext4_file_write_iter+0x298/0x1bf0
[ 445.949822][ T8139] ? ext4_buffered_write_iter+0x233/0x3a0
[ 445.949841][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.949854][ T8139] ? ext4_file_write_iter+0x298/0x1bf0
[ 445.949872][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.949900][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.949925][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.949952][ T8139] ? __asan_memset+0x22/0x50
[ 445.949971][ T8139] ? iov_iter_kvec+0xb8/0x180
[ 445.949991][ T8139] __kernel_write+0x106/0x170
[ 445.950013][ T8139] ? __pfx___kernel_write+0x10/0x10
[ 445.950030][ T8139] ? __kernel_write+0x106/0x170
[ 445.950061][ T8139] ? do_raw_spin_unlock+0xf5/0x210
[ 445.950081][ T8139] dump_emit+0x8e9/0xab0
[ 445.950109][ T8139] ? __pfx_dump_emit+0x10/0x10
[ 445.950128][ T8139] ? __pfx_dump_emit+0x10/0x10
[ 445.950144][ T8139] ? dump_emit+0x90b/0xab0
[ 445.950166][ T8139] elf_coredump_extra_notes_write+0x1a7/0x4d0
[ 445.950186][ T8139] ? dump_align+0xee/0x110
[ 445.950204][ T8139] ? writenote+0x1f2/0x2f0
[ 445.950220][ T8139] ? __pfx_elf_coredump_extra_notes_write+0x10/0x10
[ 445.950242][ T8139] ? __pfx_writenote+0x10/0x10
[ 445.950269][ T8139] elf_core_dump+0x3394/0x3ad0
[ 445.950304][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.950322][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.950340][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.950358][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.950370][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.950384][ T8139] ? coredump_write+0x381/0x1950
[ 445.950398][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.950411][ T8139] ? get_signal+0x1107/0x1330
[ 445.950428][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.950446][ T8139] ? irqentry_exit+0x176/0x620
[ 445.950462][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.950480][ T8139] ? mas_ascend+0x304/0x890
[ 445.950533][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.950550][ T8139] ? 0xffffffffff600000
[ 445.950577][ T8139] coredump_write+0x1219/0x1950
[ 445.950611][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.950643][ T8139] ? unshare_files+0xa8/0x140
[ 445.950662][ T8139] vfs_coredump+0x369e/0x4270
[ 445.950699][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.950714][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.950735][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.950763][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.950788][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.950809][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.950836][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.950850][ T8139] ? lock_acquire+0x106/0x330
[ 445.950874][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.950899][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.950914][ T8139] ? lock_acquire+0x106/0x330
[ 445.950941][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.950961][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.950976][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.950996][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.951014][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.951029][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.951043][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.951058][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.951080][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.951095][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.951112][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.951133][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.951150][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.951169][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.951184][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.951195][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.951206][ T8139] ? get_signal+0xa4a/0x1330
[ 445.951221][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.951237][ T8139] ? irqentry_exit+0x176/0x620
[ 445.951253][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.951329][ T8139] get_signal+0x1107/0x1330
[ 445.951370][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.951392][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.951432][ T8139] irqentry_exit+0x176/0x620
[ 445.951452][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.951471][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.951486][ T8139] RIP: 0033:0x0
[ 445.951497][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.951504][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.951516][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.951527][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.951536][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.951545][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.951555][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.951583][ T8139]
[ 445.952031][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.952049][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.952059][ T8139] Call Trace:
[ 445.952066][ T8139]
[ 445.952072][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.952093][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.952110][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.952132][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.952158][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.952181][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.952208][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.952238][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.952261][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.952280][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.952300][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.952341][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.952369][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.952402][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.952428][ T8139] ? percpu_ref_get_many+0x19/0x140
[ 445.952451][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.952475][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.952510][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.952533][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.952564][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.952585][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.952604][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.952619][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.952640][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.952687][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.952704][ T8139] ? css_rstat_updated+0x23a/0x530
[ 445.952730][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.952764][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.952781][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.952809][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.952838][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.952855][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.952877][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.952905][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.952925][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.952951][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.952977][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.953006][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.953031][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.953056][ T8139] ? __asan_memset+0x22/0x50
[ 445.953076][ T8139] ? iov_iter_bvec+0xb8/0x180
[ 445.953097][ T8139] dump_user_range+0xb89/0x12d0
[ 445.953127][ T8139] ? __pfx_dump_user_range+0x10/0x10
[ 445.953148][ T8139] ? elf_coredump_extra_notes_write+0x441/0x4d0
[ 445.953175][ T8139] ? __pfx_elf_coredump_extra_notes_write+0x10/0x10
[ 445.953209][ T8139] elf_core_dump+0x34c2/0x3ad0
[ 445.953245][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.953263][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.953282][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.953300][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.953311][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.953325][ T8139] ? coredump_write+0x381/0x1950
[ 445.953339][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.953353][ T8139] ? get_signal+0x1107/0x1330
[ 445.953370][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.953386][ T8139] ? irqentry_exit+0x176/0x620
[ 445.953403][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.953420][ T8139] ? mas_ascend+0x304/0x890
[ 445.953474][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.953491][ T8139] ? 0xffffffffff600000
[ 445.953517][ T8139] coredump_write+0x1219/0x1950
[ 445.953550][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.953583][ T8139] ? unshare_files+0xa8/0x140
[ 445.953601][ T8139] vfs_coredump+0x369e/0x4270
[ 445.953638][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.953652][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.953673][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.953701][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.953726][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.953746][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.953774][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.953788][ T8139] ? lock_acquire+0x106/0x330
[ 445.953811][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.953828][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.953843][ T8139] ? lock_acquire+0x106/0x330
[ 445.953871][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.953897][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.953912][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.953931][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.953950][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.953966][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.953981][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.953998][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.954025][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.954042][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.954061][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.954084][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.954102][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.954120][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.954136][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.954149][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.954162][ T8139] ? get_signal+0xa4a/0x1330
[ 445.954179][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.954195][ T8139] ? irqentry_exit+0x176/0x620
[ 445.954212][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.954285][ T8139] get_signal+0x1107/0x1330
[ 445.954324][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.954346][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.954384][ T8139] irqentry_exit+0x176/0x620
[ 445.954403][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.954421][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.954434][ T8139] RIP: 0033:0x0
[ 445.954445][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.954454][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.954467][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.954478][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.954488][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.954497][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.954507][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.954534][ T8139]
[ 445.954687][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.954704][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.954713][ T8139] Call Trace:
[ 445.954720][ T8139]
[ 445.954726][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.954745][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.954763][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.954785][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.954810][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.954836][ T8139] ? __es_insert_extent+0x10f1/0x17b0
[ 445.954865][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.954889][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.954920][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.954944][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.954986][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.955015][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.955047][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.955066][ T8139] ? ext4_update_bh_state+0x10d/0x1f0
[ 445.955084][ T8139] ? __pfx_ext4_update_bh_state+0x10/0x10
[ 445.955099][ T8139] ? percpu_ref_get_many+0x19/0x140
[ 445.955122][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.955146][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.955181][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.955204][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.955234][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.955256][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.955274][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.955290][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.955310][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.955352][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.955369][ T8139] ? css_rstat_updated+0x23a/0x530
[ 445.955395][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.955428][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.955446][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.955473][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.955501][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.955519][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.955541][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.955559][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.955580][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.955605][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.955632][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.955659][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.955684][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.955711][ T8139] ? __asan_memset+0x22/0x50
[ 445.955729][ T8139] ? iov_iter_bvec+0xb8/0x180
[ 445.955750][ T8139] dump_user_range+0xb89/0x12d0
[ 445.955781][ T8139] ? __pfx_dump_user_range+0x10/0x10
[ 445.955802][ T8139] ? elf_coredump_extra_notes_write+0x441/0x4d0
[ 445.955828][ T8139] ? __pfx_elf_coredump_extra_notes_write+0x10/0x10
[ 445.955863][ T8139] elf_core_dump+0x34c2/0x3ad0
[ 445.955903][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.955921][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.955939][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.955957][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.955970][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.955983][ T8139] ? coredump_write+0x381/0x1950
[ 445.955998][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.956012][ T8139] ? get_signal+0x1107/0x1330
[ 445.956028][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.956045][ T8139] ? irqentry_exit+0x176/0x620
[ 445.956062][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.956079][ T8139] ? mas_ascend+0x304/0x890
[ 445.956133][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.956151][ T8139] ? 0xffffffffff600000
[ 445.956177][ T8139] coredump_write+0x1219/0x1950
[ 445.956211][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.956243][ T8139] ? unshare_files+0xa8/0x140
[ 445.956262][ T8139] vfs_coredump+0x369e/0x4270
[ 445.956299][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.956314][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.956335][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.956363][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.956387][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.956408][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.956435][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.956449][ T8139] ? lock_acquire+0x106/0x330
[ 445.956472][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.956491][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.956506][ T8139] ? lock_acquire+0x106/0x330
[ 445.956532][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.956553][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.956567][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.956586][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.956604][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.956621][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.956635][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.956652][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.956679][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.956696][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.956714][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.956736][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.956754][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.956772][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.956789][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.956802][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.956814][ T8139] ? get_signal+0xa4a/0x1330
[ 445.956831][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.956848][ T8139] ? irqentry_exit+0x176/0x620
[ 445.956864][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.956943][ T8139] get_signal+0x1107/0x1330
[ 445.956982][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.957004][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.957043][ T8139] irqentry_exit+0x176/0x620
[ 445.957061][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.957080][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.957094][ T8139] RIP: 0033:0x0
[ 445.957105][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.957114][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.957127][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.957137][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.957147][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.957157][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.957166][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.957194][ T8139]
[ 445.957259][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.957274][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.957282][ T8139] Call Trace:
[ 445.957287][ T8139]
[ 445.957294][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.957310][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.957325][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.957340][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.957362][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.957379][ T8139] ? __es_remove_extent+0x13a1/0x1d30
[ 445.957406][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.957432][ T8139] ? __es_insert_extent+0xb14/0x17b0
[ 445.957461][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.957484][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.957508][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.957530][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.957568][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.957596][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.957648][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.957667][ T8139] ? ext4_update_bh_state+0x10d/0x1f0
[ 445.957685][ T8139] ? __pfx_ext4_update_bh_state+0x10/0x10
[ 445.957701][ T8139] ? percpu_ref_get_many+0x19/0x140
[ 445.957725][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.957749][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.957784][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.957807][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.957837][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.957859][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.957877][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.957901][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.957922][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.957965][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.957982][ T8139] ? css_rstat_updated+0x23a/0x530
[ 445.958009][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.958043][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.958061][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.958088][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.958118][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.958136][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.958158][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.958177][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.958196][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.958222][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.958249][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.958277][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.958302][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.958328][ T8139] ? __asan_memset+0x22/0x50
[ 445.958347][ T8139] ? iov_iter_bvec+0xb8/0x180
[ 445.958368][ T8139] dump_user_range+0xb89/0x12d0
[ 445.958399][ T8139] ? __pfx_dump_user_range+0x10/0x10
[ 445.958419][ T8139] ? elf_coredump_extra_notes_write+0x441/0x4d0
[ 445.958446][ T8139] ? __pfx_elf_coredump_extra_notes_write+0x10/0x10
[ 445.958480][ T8139] elf_core_dump+0x34c2/0x3ad0
[ 445.958514][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.958533][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.958551][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.958570][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.958582][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.958595][ T8139] ? coredump_write+0x381/0x1950
[ 445.958609][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.958623][ T8139] ? get_signal+0x1107/0x1330
[ 445.958640][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.958658][ T8139] ? irqentry_exit+0x176/0x620
[ 445.958674][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.958692][ T8139] ? mas_ascend+0x304/0x890
[ 445.958746][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.958763][ T8139] ? 0xffffffffff600000
[ 445.958790][ T8139] coredump_write+0x1219/0x1950
[ 445.958824][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.958857][ T8139] ? unshare_files+0xa8/0x140
[ 445.958876][ T8139] vfs_coredump+0x369e/0x4270
[ 445.958917][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.958933][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.958954][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.958983][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.959007][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.959028][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.959056][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.959070][ T8139] ? lock_acquire+0x106/0x330
[ 445.959094][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.959112][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.959127][ T8139] ? lock_acquire+0x106/0x330
[ 445.959154][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.959175][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.959190][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.959208][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.959226][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.959242][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.959257][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.959275][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.959302][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.959319][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.959338][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.959359][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.959377][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.959395][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.959411][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.959423][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.959436][ T8139] ? get_signal+0xa4a/0x1330
[ 445.959453][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.959470][ T8139] ? irqentry_exit+0x176/0x620
[ 445.959500][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.959573][ T8139] get_signal+0x1107/0x1330
[ 445.959612][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.959634][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.959673][ T8139] irqentry_exit+0x176/0x620
[ 445.959691][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.959710][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.959723][ T8139] RIP: 0033:0x0
[ 445.959735][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.959743][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.959757][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.959768][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.959779][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.959789][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.959798][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.959826][ T8139]
[ 445.959916][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.959933][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.959942][ T8139] Call Trace:
[ 445.959948][ T8139]
[ 445.959955][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.959974][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.959991][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.960006][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.960028][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.960044][ T8139] ? __es_remove_extent+0x13a1/0x1d30
[ 445.960072][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.960097][ T8139] ? __es_insert_extent+0xb14/0x17b0
[ 445.960126][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.960150][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.960175][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.960199][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.960241][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.960270][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.960302][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.960320][ T8139] ? ext4_update_bh_state+0x10d/0x1f0
[ 445.960338][ T8139] ? __pfx_ext4_update_bh_state+0x10/0x10
[ 445.960353][ T8139] ? percpu_ref_get_many+0x19/0x140
[ 445.960377][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.960400][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.960434][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.960457][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.960488][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.960510][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.960527][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.960543][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.960564][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.960606][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.960623][ T8139] ? css_rstat_updated+0x23a/0x530
[ 445.960649][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.960684][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.960701][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.960729][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.960758][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.960776][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.960798][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.960816][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.960836][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.960862][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.960888][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.960922][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.960948][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.960974][ T8139] ? __asan_memset+0x22/0x50
[ 445.960993][ T8139] ? iov_iter_bvec+0xb8/0x180
[ 445.961013][ T8139] dump_user_range+0xb89/0x12d0
[ 445.961044][ T8139] ? __pfx_dump_user_range+0x10/0x10
[ 445.961065][ T8139] ? elf_coredump_extra_notes_write+0x441/0x4d0
[ 445.961092][ T8139] ? __pfx_elf_coredump_extra_notes_write+0x10/0x10
[ 445.961125][ T8139] elf_core_dump+0x34c2/0x3ad0
[ 445.961160][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.961178][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.961196][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.961214][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.961226][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.961240][ T8139] ? coredump_write+0x381/0x1950
[ 445.961253][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.961267][ T8139] ? get_signal+0x1107/0x1330
[ 445.961284][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.961301][ T8139] ? irqentry_exit+0x176/0x620
[ 445.961316][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.961334][ T8139] ? mas_ascend+0x304/0x890
[ 445.961388][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.961405][ T8139] ? 0xffffffffff600000
[ 445.961431][ T8139] coredump_write+0x1219/0x1950
[ 445.961465][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.961498][ T8139] ? unshare_files+0xa8/0x140
[ 445.961517][ T8139] vfs_coredump+0x369e/0x4270
[ 445.961553][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.961568][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.961589][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.961617][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.961642][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.961663][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.961687][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.961699][ T8139] ? lock_acquire+0x106/0x330
[ 445.961723][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.961741][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.961756][ T8139] ? lock_acquire+0x106/0x330
[ 445.961783][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.961804][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.961819][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.961838][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.961855][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.961872][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.961887][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.961909][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.961936][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.961952][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.961972][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.961993][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.962012][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.962030][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.962046][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.962059][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.962072][ T8139] ? get_signal+0xa4a/0x1330
[ 445.962088][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.962106][ T8139] ? irqentry_exit+0x176/0x620
[ 445.962122][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.962195][ T8139] get_signal+0x1107/0x1330
[ 445.962234][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.962256][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.962295][ T8139] irqentry_exit+0x176/0x620
[ 445.962314][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.962333][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.962345][ T8139] RIP: 0033:0x0
[ 445.962357][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.962365][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.962378][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.962389][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.962399][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.962409][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.962418][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.962446][ T8139]
[ 445.963137][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.963156][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.963165][ T8139] Call Trace:
[ 445.963172][ T8139]
[ 445.963179][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.963199][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.963216][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.963238][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.963264][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.963287][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.963313][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.963343][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.963361][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.963379][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.963398][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.963440][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.963470][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.963502][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.963527][ T8139] ? percpu_ref_get_many+0x19/0x140
[ 445.963551][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.963574][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.963609][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.963632][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.963662][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.963684][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.963702][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.963718][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.963739][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.963782][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.963810][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.963844][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.963861][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.963889][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.963925][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.963943][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.963965][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.963983][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.964004][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.964032][ T8139] ? __get_user_pages+0x280d/0x29d0
[ 445.964056][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.964085][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.964110][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.964136][ T8139] ? __asan_memset+0x22/0x50
[ 445.964155][ T8139] ? iov_iter_bvec+0xb8/0x180
[ 445.964175][ T8139] dump_user_range+0xb89/0x12d0
[ 445.964206][ T8139] ? __pfx_dump_user_range+0x10/0x10
[ 445.964226][ T8139] ? elf_coredump_extra_notes_write+0x441/0x4d0
[ 445.964252][ T8139] ? __pfx_elf_coredump_extra_notes_write+0x10/0x10
[ 445.964287][ T8139] elf_core_dump+0x34c2/0x3ad0
[ 445.964322][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.964339][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.964358][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.964376][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.964388][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.964402][ T8139] ? coredump_write+0x381/0x1950
[ 445.964416][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.964429][ T8139] ? get_signal+0x1107/0x1330
[ 445.964447][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.964464][ T8139] ? irqentry_exit+0x176/0x620
[ 445.964480][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.964497][ T8139] ? mas_ascend+0x304/0x890
[ 445.964551][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.964568][ T8139] ? 0xffffffffff600000
[ 445.964595][ T8139] coredump_write+0x1219/0x1950
[ 445.964628][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.964660][ T8139] ? unshare_files+0xa8/0x140
[ 445.964679][ T8139] vfs_coredump+0x369e/0x4270
[ 445.964716][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.964731][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.964752][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.964780][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.964805][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.964826][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.964853][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.964867][ T8139] ? lock_acquire+0x106/0x330
[ 445.964897][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.964915][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.964930][ T8139] ? lock_acquire+0x106/0x330
[ 445.964957][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.964977][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.964992][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.965011][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.965028][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.965044][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.965060][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.965076][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.965104][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.965120][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.965139][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.965160][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.965178][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.965196][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.965213][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.965225][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.965238][ T8139] ? get_signal+0xa4a/0x1330
[ 445.965254][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.965271][ T8139] ? irqentry_exit+0x176/0x620
[ 445.965288][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.965362][ T8139] get_signal+0x1107/0x1330
[ 445.965401][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.965423][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.965462][ T8139] irqentry_exit+0x176/0x620
[ 445.965480][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.965499][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.965513][ T8139] RIP: 0033:0x0
[ 445.965524][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.965533][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.965546][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.965557][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.965567][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.965577][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.965586][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.965615][ T8139]
[ 445.965691][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.965708][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.965717][ T8139] Call Trace:
[ 445.965724][ T8139]
[ 445.965730][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.965748][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.965765][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.965781][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.965804][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.965820][ T8139] ? __es_remove_extent+0x13a1/0x1d30
[ 445.965847][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.965873][ T8139] ? __es_insert_extent+0xb14/0x17b0
[ 445.965907][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.965931][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.965956][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.965981][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.966023][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.966052][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.966084][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.966102][ T8139] ? ext4_update_bh_state+0x10d/0x1f0
[ 445.966120][ T8139] ? __pfx_ext4_update_bh_state+0x10/0x10
[ 445.966135][ T8139] ? percpu_ref_get_many+0x19/0x140
[ 445.966158][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.966182][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.966216][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.966239][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.966269][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.966291][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.966309][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.966325][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.966346][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.966388][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.966417][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.966451][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.966468][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.966495][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.966523][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.966540][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.966562][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.966581][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.966601][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.966628][ T8139] ? __get_user_pages+0x280d/0x29d0
[ 445.966651][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.966679][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.966704][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.966730][ T8139] ? __asan_memset+0x22/0x50
[ 445.966748][ T8139] ? iov_iter_bvec+0xb8/0x180
[ 445.966769][ T8139] dump_user_range+0xb89/0x12d0
[ 445.966800][ T8139] ? __pfx_dump_user_range+0x10/0x10
[ 445.966818][ T8139] ? elf_coredump_extra_notes_write+0x441/0x4d0
[ 445.966844][ T8139] ? __pfx_elf_coredump_extra_notes_write+0x10/0x10
[ 445.966877][ T8139] elf_core_dump+0x34c2/0x3ad0
[ 445.966919][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.966937][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.966955][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.966973][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.966985][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.966998][ T8139] ? coredump_write+0x381/0x1950
[ 445.967013][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.967026][ T8139] ? get_signal+0x1107/0x1330
[ 445.967043][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.967060][ T8139] ? irqentry_exit+0x176/0x620
[ 445.967076][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.967094][ T8139] ? mas_ascend+0x304/0x890
[ 445.967147][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.967164][ T8139] ? 0xffffffffff600000
[ 445.967191][ T8139] coredump_write+0x1219/0x1950
[ 445.967224][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.967257][ T8139] ? unshare_files+0xa8/0x140
[ 445.967276][ T8139] vfs_coredump+0x369e/0x4270
[ 445.967312][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.967327][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.967348][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.967377][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.967401][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.967423][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.967450][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.967464][ T8139] ? lock_acquire+0x106/0x330
[ 445.967488][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.967506][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.967521][ T8139] ? lock_acquire+0x106/0x330
[ 445.967548][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.967569][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.967584][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.967602][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.967620][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.967637][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.967652][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.967669][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.967696][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.967713][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.967732][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.967753][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.967771][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.967790][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.967806][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.967818][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.967831][ T8139] ? get_signal+0xa4a/0x1330
[ 445.967848][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.967865][ T8139] ? irqentry_exit+0x176/0x620
[ 445.967881][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.967961][ T8139] get_signal+0x1107/0x1330
[ 445.968000][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.968021][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.968060][ T8139] irqentry_exit+0x176/0x620
[ 445.968078][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.968096][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.968110][ T8139] RIP: 0033:0x0
[ 445.968121][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.968129][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.968141][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.968152][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.968162][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.968172][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.968182][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.968210][ T8139]
[ 445.968279][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.968296][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.968305][ T8139] Call Trace:
[ 445.968311][ T8139]
[ 445.968318][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.968336][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.968353][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.968368][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.968391][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.968408][ T8139] ? __es_remove_extent+0x13a1/0x1d30
[ 445.968435][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.968460][ T8139] ? __es_insert_extent+0xb14/0x17b0
[ 445.968489][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.968513][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.968538][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.968562][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.968604][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.968633][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.968665][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.968683][ T8139] ? ext4_update_bh_state+0x10d/0x1f0
[ 445.968701][ T8139] ? __pfx_ext4_update_bh_state+0x10/0x10
[ 445.968717][ T8139] ? percpu_ref_get_many+0x19/0x140
[ 445.968740][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.968763][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.968799][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.968822][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.968852][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.968874][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.968897][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.968913][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.968934][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.968976][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.969004][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.969038][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.969055][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.969082][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.969111][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.969128][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.969150][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.969169][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.969189][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.969217][ T8139] ? __get_user_pages+0x280d/0x29d0
[ 445.969239][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.969268][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.969293][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.969320][ T8139] ? __asan_memset+0x22/0x50
[ 445.969352][ T8139] ? iov_iter_bvec+0xb8/0x180
[ 445.969373][ T8139] dump_user_range+0xb89/0x12d0
[ 445.969404][ T8139] ? __pfx_dump_user_range+0x10/0x10
[ 445.969425][ T8139] ? elf_coredump_extra_notes_write+0x441/0x4d0
[ 445.969451][ T8139] ? __pfx_elf_coredump_extra_notes_write+0x10/0x10
[ 445.969485][ T8139] elf_core_dump+0x34c2/0x3ad0
[ 445.969520][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.969538][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.969556][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.969574][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.969587][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.969601][ T8139] ? coredump_write+0x381/0x1950
[ 445.969615][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.969629][ T8139] ? get_signal+0x1107/0x1330
[ 445.969646][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.969663][ T8139] ? irqentry_exit+0x176/0x620
[ 445.969680][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.969697][ T8139] ? mas_ascend+0x304/0x890
[ 445.969751][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.969768][ T8139] ? 0xffffffffff600000
[ 445.969794][ T8139] coredump_write+0x1219/0x1950
[ 445.969828][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.969860][ T8139] ? unshare_files+0xa8/0x140
[ 445.969879][ T8139] vfs_coredump+0x369e/0x4270
[ 445.969921][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.969937][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.969958][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.969986][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.970011][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.970032][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.970059][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.970073][ T8139] ? lock_acquire+0x106/0x330
[ 445.970097][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.970115][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.970130][ T8139] ? lock_acquire+0x106/0x330
[ 445.970157][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.970178][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.970193][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.970211][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.970230][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.970246][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.970261][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.970278][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.970305][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.970321][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.970340][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.970361][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.970379][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.970398][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.970413][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.970426][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.970439][ T8139] ? get_signal+0xa4a/0x1330
[ 445.970455][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.970473][ T8139] ? irqentry_exit+0x176/0x620
[ 445.970488][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.970560][ T8139] get_signal+0x1107/0x1330
[ 445.970600][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.970621][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.970659][ T8139] irqentry_exit+0x176/0x620
[ 445.970678][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.970696][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.970710][ T8139] RIP: 0033:0x0
[ 445.970721][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.970729][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.970741][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.970751][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.970760][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.970768][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.970776][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.970800][ T8139]
[ 445.970872][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.970888][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.970903][ T8139] Call Trace:
[ 445.970909][ T8139]
[ 445.970915][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.970934][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.970951][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.970966][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.970988][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.971005][ T8139] ? __es_remove_extent+0x13a1/0x1d30
[ 445.971031][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.971057][ T8139] ? __es_insert_extent+0xb14/0x17b0
[ 445.971085][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.971109][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.971135][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.971158][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.971199][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.971229][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.971261][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.971279][ T8139] ? ext4_update_bh_state+0x10d/0x1f0
[ 445.971297][ T8139] ? __pfx_ext4_update_bh_state+0x10/0x10
[ 445.971312][ T8139] ? percpu_ref_get_many+0x19/0x140
[ 445.971335][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.971358][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.971393][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.971416][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.971446][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.971468][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.971485][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.971501][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.971522][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.971564][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.971593][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.971626][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.971643][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.971670][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.971699][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.971717][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.971738][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.971757][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.971777][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.971804][ T8139] ? __get_user_pages+0x280d/0x29d0
[ 445.971827][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.971855][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.971880][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.971931][ T8139] ? __asan_memset+0x22/0x50
[ 445.971950][ T8139] ? iov_iter_bvec+0xb8/0x180
[ 445.971970][ T8139] dump_user_range+0xb89/0x12d0
[ 445.972001][ T8139] ? __pfx_dump_user_range+0x10/0x10
[ 445.972021][ T8139] ? elf_coredump_extra_notes_write+0x441/0x4d0
[ 445.972047][ T8139] ? __pfx_elf_coredump_extra_notes_write+0x10/0x10
[ 445.972081][ T8139] elf_core_dump+0x34c2/0x3ad0
[ 445.972116][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.972134][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.972152][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.972169][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.972182][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.972195][ T8139] ? coredump_write+0x381/0x1950
[ 445.972209][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.972222][ T8139] ? get_signal+0x1107/0x1330
[ 445.972239][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.972256][ T8139] ? irqentry_exit+0x176/0x620
[ 445.972273][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.972290][ T8139] ? mas_ascend+0x304/0x890
[ 445.972344][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.972360][ T8139] ? 0xffffffffff600000
[ 445.972386][ T8139] coredump_write+0x1219/0x1950
[ 445.972420][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.972452][ T8139] ? unshare_files+0xa8/0x140
[ 445.972471][ T8139] vfs_coredump+0x369e/0x4270
[ 445.972507][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.972522][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.972544][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.972572][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.972596][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.972617][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.972644][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.972656][ T8139] ? lock_acquire+0x106/0x330
[ 445.972675][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.972697][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.972712][ T8139] ? lock_acquire+0x106/0x330
[ 445.972736][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.972757][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.972771][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.972790][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.972809][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.972825][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.972839][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.972857][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.972883][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.972906][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.972926][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.972946][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.972965][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.972983][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.972999][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.973011][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.973024][ T8139] ? get_signal+0xa4a/0x1330
[ 445.973041][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.973058][ T8139] ? irqentry_exit+0x176/0x620
[ 445.973074][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.973147][ T8139] get_signal+0x1107/0x1330
[ 445.973187][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.973208][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.973246][ T8139] irqentry_exit+0x176/0x620
[ 445.973265][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.973283][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.973297][ T8139] RIP: 0033:0x0
[ 445.973308][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.973317][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.973329][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.973339][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.973350][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.973360][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.973369][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.973397][ T8139]
[ 445.973673][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.973692][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.973701][ T8139] Call Trace:
[ 445.973707][ T8139]
[ 445.973714][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.973733][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.973750][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.973773][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.973799][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.973822][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.973848][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.973878][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.973904][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.973922][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.973941][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.973983][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.974012][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.974044][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.974070][ T8139] ? percpu_ref_get_many+0x19/0x140
[ 445.974093][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.974117][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.974152][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.974175][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.974205][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.974227][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.974245][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.974261][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.974282][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.974325][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.974353][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.974388][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.974405][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.974433][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.974462][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.974480][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.974501][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.974521][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.974540][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.974569][ T8139] ? __get_user_pages+0x280d/0x29d0
[ 445.974592][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.974621][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.974644][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.974670][ T8139] ? __asan_memset+0x22/0x50
[ 445.974689][ T8139] ? iov_iter_bvec+0xb8/0x180
[ 445.974710][ T8139] dump_user_range+0xb89/0x12d0
[ 445.974741][ T8139] ? __pfx_dump_user_range+0x10/0x10
[ 445.974761][ T8139] ? elf_coredump_extra_notes_write+0x441/0x4d0
[ 445.974788][ T8139] ? __pfx_elf_coredump_extra_notes_write+0x10/0x10
[ 445.974822][ T8139] elf_core_dump+0x34c2/0x3ad0
[ 445.974857][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.974875][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.974899][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.974917][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.974930][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.974943][ T8139] ? coredump_write+0x381/0x1950
[ 445.974957][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.974971][ T8139] ? get_signal+0x1107/0x1330
[ 445.974988][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.975006][ T8139] ? irqentry_exit+0x176/0x620
[ 445.975021][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.975039][ T8139] ? mas_ascend+0x304/0x890
[ 445.975093][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.975110][ T8139] ? 0xffffffffff600000
[ 445.975136][ T8139] coredump_write+0x1219/0x1950
[ 445.975170][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.975202][ T8139] ? unshare_files+0xa8/0x140
[ 445.975221][ T8139] vfs_coredump+0x369e/0x4270
[ 445.975257][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.975272][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.975294][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.975322][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.975347][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.975368][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.975396][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.975409][ T8139] ? lock_acquire+0x106/0x330
[ 445.975433][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.975452][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.975466][ T8139] ? lock_acquire+0x106/0x330
[ 445.975494][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.975514][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.975529][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.975547][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.975566][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.975582][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.975597][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.975614][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.975640][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.975656][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.975675][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.975697][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.975715][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.975732][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.975748][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.975760][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.975773][ T8139] ? get_signal+0xa4a/0x1330
[ 445.975790][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.975807][ T8139] ? irqentry_exit+0x176/0x620
[ 445.975823][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.975901][ T8139] get_signal+0x1107/0x1330
[ 445.975939][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.975961][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.976000][ T8139] irqentry_exit+0x176/0x620
[ 445.976019][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.976037][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.976051][ T8139] RIP: 0033:0x0
[ 445.976062][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.976071][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.976083][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.976094][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.976105][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.976114][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.976124][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.976152][ T8139]
[ 445.976423][ T8139] CPU: 0 UID: 0 PID: 8139 Comm: syz.4.61 Not tainted syzkaller #0 PREEMPT(full)
[ 445.976441][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 445.976451][ T8139] Call Trace:
[ 445.976457][ T8139]
[ 445.976463][ T8139] dump_stack_lvl+0xe8/0x150
[ 445.976482][ T8139] ext4_cache_extents+0x31a/0x340
[ 445.976500][ T8139] ? ext4_find_extent+0x2e3/0xa20
[ 445.976522][ T8139] ext4_find_extent+0x3a9/0xa20
[ 445.976548][ T8139] ext4_ext_map_blocks+0x27a/0x5730
[ 445.976574][ T8139] ? __es_insert_extent+0x10f1/0x17b0
[ 445.976603][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.976627][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.976652][ T8139] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 445.976677][ T8139] ? ext4_map_blocks+0x7b5/0x11d0
[ 445.976718][ T8139] ext4_map_create_blocks+0x11d/0x540
[ 445.976747][ T8139] ext4_map_blocks+0x7cd/0x11d0
[ 445.976779][ T8139] ? __pfx_ext4_map_blocks+0x10/0x10
[ 445.976798][ T8139] ? ext4_update_bh_state+0x10d/0x1f0
[ 445.976816][ T8139] ? __pfx_ext4_update_bh_state+0x10/0x10
[ 445.976831][ T8139] ? percpu_ref_get_many+0x19/0x140
[ 445.976854][ T8139] _ext4_get_block+0x1e3/0x470
[ 445.976878][ T8139] ? __pfx__ext4_get_block+0x10/0x10
[ 445.976919][ T8139] ext4_get_block_unwritten+0x2e/0x100
[ 445.976943][ T8139] ext4_block_write_begin+0xb14/0x1950
[ 445.976973][ T8139] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 445.976995][ T8139] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 445.977012][ T8139] ? folio_mapping+0x16f/0x1f0
[ 445.977027][ T8139] ? ext4_inode_journal_mode+0x193/0x470
[ 445.977045][ T8139] ext4_write_begin+0xb40/0x1870
[ 445.977084][ T8139] ? __pfx_ext4_write_begin+0x10/0x10
[ 445.977110][ T8139] ext4_da_write_begin+0x355/0xd30
[ 445.977144][ T8139] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 445.977161][ T8139] ? lockdep_hardirqs_on+0x7a/0x110
[ 445.977189][ T8139] generic_perform_write+0x2e2/0x8f0
[ 445.977218][ T8139] ? __pfx_generic_perform_write+0x10/0x10
[ 445.977235][ T8139] ? file_update_time_flags+0x2cb/0x4d0
[ 445.977257][ T8139] ? ext4_write_checks+0x24b/0x2c0
[ 445.977275][ T8139] ext4_buffered_write_iter+0xce/0x3a0
[ 445.977296][ T8139] ext4_file_write_iter+0x298/0x1bf0
[ 445.977323][ T8139] ? __get_user_pages+0x280d/0x29d0
[ 445.977347][ T8139] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 445.977376][ T8139] __kernel_write_iter+0x41e/0x880
[ 445.977401][ T8139] ? __pfx___kernel_write_iter+0x10/0x10
[ 445.977427][ T8139] ? __asan_memset+0x22/0x50
[ 445.977446][ T8139] ? iov_iter_bvec+0xb8/0x180
[ 445.977467][ T8139] dump_user_range+0xb89/0x12d0
[ 445.977498][ T8139] ? __pfx_dump_user_range+0x10/0x10
[ 445.977518][ T8139] ? elf_coredump_extra_notes_write+0x441/0x4d0
[ 445.977545][ T8139] ? __pfx_elf_coredump_extra_notes_write+0x10/0x10
[ 445.977578][ T8139] elf_core_dump+0x34c2/0x3ad0
[ 445.977613][ T8139] ? __pfx_elf_core_dump+0x10/0x10
[ 445.977631][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.977710][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.977728][ T8139] ? __kasan_kmalloc+0x93/0xb0
[ 445.977741][ T8139] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 445.977754][ T8139] ? coredump_write+0x381/0x1950
[ 445.977768][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.977782][ T8139] ? get_signal+0x1107/0x1330
[ 445.977799][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.977816][ T8139] ? irqentry_exit+0x176/0x620
[ 445.977832][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.977850][ T8139] ? mas_ascend+0x304/0x890
[ 445.977908][ T8139] ? vfs_coredump+0x369e/0x4270
[ 445.977925][ T8139] ? 0xffffffffff600000
[ 445.977952][ T8139] coredump_write+0x1219/0x1950
[ 445.977986][ T8139] ? __pfx_coredump_write+0x10/0x10
[ 445.978019][ T8139] ? unshare_files+0xa8/0x140
[ 445.978037][ T8139] vfs_coredump+0x369e/0x4270
[ 445.978074][ T8139] ? __pfx_vfs_coredump+0x10/0x10
[ 445.978089][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.978110][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.978139][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.978164][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.978184][ T8139] ? __lock_acquire+0x6b5/0x2cf0
[ 445.978210][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.978224][ T8139] ? lock_acquire+0x106/0x330
[ 445.978248][ T8139] ? unwind_next_frame+0xa5/0x23c0
[ 445.978266][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.978281][ T8139] ? lock_acquire+0x106/0x330
[ 445.978308][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.978329][ T8139] ? is_bpf_text_address+0x292/0x2b0
[ 445.978344][ T8139] ? is_bpf_text_address+0x26/0x2b0
[ 445.978363][ T8139] ? kernel_text_address+0xa5/0xe0
[ 445.978381][ T8139] ? __kernel_text_address+0xd/0x30
[ 445.978398][ T8139] ? unwind_get_return_address+0x4d/0x90
[ 445.978412][ T8139] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 445.978430][ T8139] ? arch_stack_walk+0xfb/0x150
[ 445.978456][ T8139] ? stack_trace_save+0xa9/0x100
[ 445.978473][ T8139] ? __pfx_stack_trace_save+0x10/0x10
[ 445.978492][ T8139] ? stack_depot_save_flags+0x33/0x810
[ 445.978514][ T8139] ? kasan_save_track+0x4f/0x80
[ 445.978532][ T8139] ? kasan_save_track+0x3e/0x80
[ 445.978550][ T8139] ? kasan_save_free_info+0x46/0x50
[ 445.978566][ T8139] ? __kasan_slab_free+0x5c/0x80
[ 445.978579][ T8139] ? kmem_cache_free+0x195/0x610
[ 445.978592][ T8139] ? get_signal+0xa4a/0x1330
[ 445.978608][ T8139] ? arch_do_signal_or_restart+0xbc/0x830
[ 445.978625][ T8139] ? irqentry_exit+0x176/0x620
[ 445.978641][ T8139] ? asm_exc_page_fault+0x26/0x30
[ 445.978715][ T8139] get_signal+0x1107/0x1330
[ 445.978754][ T8139] arch_do_signal_or_restart+0xbc/0x830
[ 445.978777][ T8139] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 445.978815][ T8139] irqentry_exit+0x176/0x620
[ 445.978834][ T8139] ? trace_irq_disable+0x37/0x100
[ 445.978853][ T8139] asm_exc_page_fault+0x26/0x30
[ 445.978867][ T8139] RIP: 0033:0x0
[ 445.978878][ T8139] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 445.978886][ T8139] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 445.978904][ T8139] RAX: 0000000000000000 RBX: 00007f7d20615fa0 RCX: 00007f7d2039aeb9
[ 445.978916][ T8139] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 445.978926][ T8139] RBP: 00007f7d20408c1f R08: 0000000000000000 R09: 0000000000000000
[ 445.978935][ T8139] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 445.978944][ T8139] R13: 00007f7d20616038 R14: 00007f7d20615fa0 R15: 00007fff12d18f58
[ 445.978972][ T8139]
[ 446.003524][ T8146] EXT4-fs warning (device loop3): ext4_es_cache_extent:1045: inode #2: comm syz.3.63: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 446.003524][ T8146]
[ 446.068500][ T7886] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 446.098779][ T8145] CPU: 0 UID: 0 PID: 8145 Comm: syz.9.50 Not tainted syzkaller #0 PREEMPT(full)
[ 446.098801][ T8145] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.098812][ T8145] Call Trace:
[ 446.098819][ T8145]
[ 446.098827][ T8145] dump_stack_lvl+0xe8/0x150
[ 446.098851][ T8145] ext4_cache_extents+0x31a/0x340
[ 446.098870][ T8145] ? ext4_find_extent+0x2e3/0xa20
[ 446.098899][ T8145] ext4_find_extent+0x3a9/0xa20
[ 446.098925][ T8145] ext4_ext_map_blocks+0x27a/0x5730
[ 446.098958][ T8145] ? is_bpf_text_address+0x26/0x2b0
[ 446.098980][ T8145] ? is_bpf_text_address+0x292/0x2b0
[ 446.098995][ T8145] ? is_bpf_text_address+0x26/0x2b0
[ 446.099014][ T8145] ? kernel_text_address+0xa5/0xe0
[ 446.099040][ T8145] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 446.099062][ T8145] ? __lock_acquire+0x6b5/0x2cf0
[ 446.099104][ T8145] ext4_map_query_blocks+0x13b/0xa00
[ 446.099125][ T8145] ? ext4_map_blocks+0x42c/0x11d0
[ 446.099153][ T8145] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 446.099181][ T8145] ? down_read+0x272/0x2e0
[ 446.099199][ T8145] ? ext4_map_blocks+0x259/0x11d0
[ 446.099223][ T8145] ext4_map_blocks+0x444/0x11d0
[ 446.099255][ T8145] ? __pfx_ext4_map_blocks+0x10/0x10
[ 446.099282][ T8145] ? rcu_is_watching+0x15/0xb0
[ 446.099311][ T8145] _ext4_get_block+0x1e3/0x470
[ 446.099334][ T8145] ? __pfx__ext4_get_block+0x10/0x10
[ 446.099359][ T8145] ? do_raw_spin_unlock+0xf5/0x210
[ 446.099379][ T8145] ? _raw_spin_unlock+0x28/0x50
[ 446.099398][ T8145] ext4_get_block_unwritten+0x2e/0x100
[ 446.099421][ T8145] ext4_block_write_begin+0xb14/0x1950
[ 446.099453][ T8145] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 446.099490][ T8145] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 446.099509][ T8145] ? ext4_inode_journal_mode+0x193/0x470
[ 446.099531][ T8145] ext4_convert_inline_data_to_extent+0x670/0xde0
[ 446.099567][ T8145] ? __pfx_ext4_convert_inline_data_to_extent+0x10/0x10
[ 446.099590][ T8145] ? ext4_inode_journal_mode+0x193/0x470
[ 446.099612][ T8145] ? ext4_try_to_write_inline_data+0x49/0xa0
[ 446.099635][ T8145] ext4_write_begin+0x357/0x1870
[ 446.099652][ T8145] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.099674][ T8145] ? __ext4_mark_inode_dirty+0x4c8/0x6e0
[ 446.099698][ T8145] ? __lock_acquire+0x6b5/0x2cf0
[ 446.099727][ T8145] ? __pfx_ext4_write_begin+0x10/0x10
[ 446.099744][ T8145] ? __ext4_journal_stop+0x34/0x1a0
[ 446.099765][ T8145] ? ext4_write_inline_data_end+0x8f6/0xad0
[ 446.099788][ T8145] ext4_da_write_begin+0x355/0xd30
[ 446.099822][ T8145] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 446.099840][ T8145] ? lockdep_hardirqs_on+0x7a/0x110
[ 446.099868][ T8145] generic_perform_write+0x2e2/0x8f0
[ 446.099904][ T8145] ? __pfx_generic_perform_write+0x10/0x10
[ 446.099922][ T8145] ? file_update_time_flags+0x2cb/0x4d0
[ 446.099945][ T8145] ? ext4_write_checks+0x24b/0x2c0
[ 446.099964][ T8145] ext4_buffered_write_iter+0xce/0x3a0
[ 446.099984][ T8145] ext4_file_write_iter+0x298/0x1bf0
[ 446.100011][ T8145] ? is_bpf_text_address+0x292/0x2b0
[ 446.100027][ T8145] ? is_bpf_text_address+0x26/0x2b0
[ 446.100046][ T8145] ? kernel_text_address+0xa5/0xe0
[ 446.100064][ T8145] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 446.100078][ T8145] ? unwind_get_return_address+0x4d/0x90
[ 446.100094][ T8145] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 446.100112][ T8145] ? arch_stack_walk+0xfb/0x150
[ 446.100137][ T8145] __kernel_write_iter+0x41e/0x880
[ 446.100164][ T8145] ? __pfx___kernel_write_iter+0x10/0x10
[ 446.100191][ T8145] ? __asan_memset+0x22/0x50
[ 446.100211][ T8145] ? iov_iter_kvec+0xb8/0x180
[ 446.100232][ T8145] __kernel_write+0x106/0x170
[ 446.100255][ T8145] ? __pfx___kernel_write+0x10/0x10
[ 446.100293][ T8145] dump_emit+0x8e9/0xab0
[ 446.100323][ T8145] ? __pfx_dump_emit+0x10/0x10
[ 446.100340][ T8145] ? __kasan_kmalloc+0x93/0xb0
[ 446.100356][ T8145] ? __kmalloc_cache_noprof+0x3d1/0x6e0
[ 446.100386][ T8145] elf_core_dump+0x2e5d/0x3ad0
[ 446.100422][ T8145] ? __pfx_elf_core_dump+0x10/0x10
[ 446.100441][ T8145] ? kasan_save_track+0x4f/0x80
[ 446.100460][ T8145] ? kasan_save_track+0x3e/0x80
[ 446.100478][ T8145] ? __kasan_kmalloc+0x93/0xb0
[ 446.100490][ T8145] ? __kvmalloc_node_noprof+0x59a/0x8d0
[ 446.100504][ T8145] ? coredump_write+0x381/0x1950
[ 446.100518][ T8145] ? vfs_coredump+0x369e/0x4270
[ 446.100532][ T8145] ? get_signal+0x1107/0x1330
[ 446.100550][ T8145] ? arch_do_signal_or_restart+0xbc/0x830
[ 446.100568][ T8145] ? irqentry_exit+0x176/0x620
[ 446.100585][ T8145] ? asm_exc_page_fault+0x26/0x30
[ 446.100603][ T8145] ? mas_ascend+0x304/0x890
[ 446.100658][ T8145] ? vfs_coredump+0x369e/0x4270
[ 446.100692][ T8145] coredump_write+0x1219/0x1950
[ 446.100726][ T8145] ? __pfx_coredump_write+0x10/0x10
[ 446.100760][ T8145] ? unshare_files+0xa8/0x140
[ 446.100779][ T8145] vfs_coredump+0x369e/0x4270
[ 446.100816][ T8145] ? __pfx_vfs_coredump+0x10/0x10
[ 446.100832][ T8145] ? __lock_acquire+0x6b5/0x2cf0
[ 446.100854][ T8145] ? __lock_acquire+0x6b5/0x2cf0
[ 446.100887][ T8145] ? __lock_acquire+0x6b5/0x2cf0
[ 446.100912][ T8145] ? __lock_acquire+0x6b5/0x2cf0
[ 446.100933][ T8145] ? __lock_acquire+0x6b5/0x2cf0
[ 446.100961][ T8145] ? unwind_next_frame+0xa5/0x23c0
[ 446.100976][ T8145] ? lock_acquire+0x106/0x330
[ 446.101000][ T8145] ? unwind_next_frame+0xa5/0x23c0
[ 446.101019][ T8145] ? is_bpf_text_address+0x26/0x2b0
[ 446.101033][ T8145] ? lock_acquire+0x106/0x330
[ 446.101062][ T8145] ? is_bpf_text_address+0x26/0x2b0
[ 446.101082][ T8145] ? is_bpf_text_address+0x292/0x2b0
[ 446.101097][ T8145] ? is_bpf_text_address+0x26/0x2b0
[ 446.101116][ T8145] ? kernel_text_address+0xa5/0xe0
[ 446.101134][ T8145] ? __kernel_text_address+0xd/0x30
[ 446.101151][ T8145] ? unwind_get_return_address+0x4d/0x90
[ 446.101166][ T8145] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 446.101184][ T8145] ? arch_stack_walk+0xfb/0x150
[ 446.101211][ T8145] ? stack_trace_save+0xa9/0x100
[ 446.101227][ T8145] ? __pfx_stack_trace_save+0x10/0x10
[ 446.101247][ T8145] ? stack_depot_save_flags+0x33/0x810
[ 446.101269][ T8145] ? kasan_save_track+0x4f/0x80
[ 446.101287][ T8145] ? kasan_save_track+0x3e/0x80
[ 446.101306][ T8145] ? kasan_save_free_info+0x46/0x50
[ 446.101322][ T8145] ? __kasan_slab_free+0x5c/0x80
[ 446.101334][ T8145] ? kmem_cache_free+0x195/0x610
[ 446.101347][ T8145] ? get_signal+0xa4a/0x1330
[ 446.101364][ T8145] ? arch_do_signal_or_restart+0xbc/0x830
[ 446.101381][ T8145] ? irqentry_exit+0x176/0x620
[ 446.101397][ T8145] ? asm_exc_page_fault+0x26/0x30
[ 446.101468][ T8145] ? _raw_spin_unlock_irq+0x23/0x50
[ 446.101488][ T8145] get_signal+0x1107/0x1330
[ 446.101528][ T8145] arch_do_signal_or_restart+0xbc/0x830
[ 446.101550][ T8145] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 446.101590][ T8145] irqentry_exit+0x176/0x620
[ 446.101609][ T8145] ? trace_irq_disable+0x37/0x100
[ 446.101628][ T8145] asm_exc_page_fault+0x26/0x30
[ 446.101642][ T8145] RIP: 0033:0x0
[ 446.101655][ T8145] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 446.101664][ T8145] RSP: 002b:0000200000000548 EFLAGS: 00010217
[ 446.101679][ T8145] RAX: 0000000000000000 RBX: 00007f01e9415fa0 RCX: 00007f01e919aeb9
[ 446.101690][ T8145] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 0000000000000000
[ 446.101700][ T8145] RBP: 00007f01e9208c1f R08: 0000000000000000 R09: 0000000000000000
[ 446.101710][ T8145] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 446.101720][ T8145] R13: 00007f01e9416038 R14: 00007f01e9415fa0 R15: 00007ffcff28dcc8
[ 446.101748][ T8145]
[ 446.101761][ T8145] EXT4-fs warning (device loop9): ext4_es_cache_extent:1045: inode #18: comm syz.9.50: ext4_es_cache_extent: cache extent lblk:0 len:4294967295 pblk:18446744073709551615 status:0x8
[ 446.101761][ T8145]
[ 446.107565][ T8139] EXT4-fs error (device loop4): ext4_mb_mark_diskspace_used:4242: comm syz.4.61: Allocating blocks 497-513 which overlap fs metadata
[ 446.123502][ T7774] CPU: 0 UID: 0 PID: 7774 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.123527][ T7774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.123537][ T7774] Call Trace:
[ 446.123544][ T7774]
[ 446.123552][ T7774] dump_stack_lvl+0xe8/0x150
[ 446.123576][ T7774] ext4_es_remove_extent+0x33b/0x4e0
[ 446.123605][ T7774] ext4_ext_truncate+0x16a/0x2f0
[ 446.123630][ T7774] ext4_truncate+0xb63/0x1300
[ 446.123659][ T7774] ? __pfx_ext4_truncate+0x10/0x10
[ 446.123690][ T7774] ext4_evict_inode+0x863/0xe60
[ 446.123722][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.123746][ T7774] ? do_raw_spin_unlock+0xf5/0x210
[ 446.123763][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.123785][ T7774] evict+0x61e/0xb10
[ 446.123814][ T7774] ? __pfx_evict+0x10/0x10
[ 446.123834][ T7774] ? _raw_spin_unlock+0x28/0x50
[ 446.123859][ T7774] ? iput+0xcc2/0x1020
[ 446.123886][ T7774] vfs_rmdir+0x3f1/0x660
[ 446.123912][ T7774] do_rmdir+0x278/0x470
[ 446.123945][ T7774] ? __pfx_do_rmdir+0x10/0x10
[ 446.123971][ T7774] ? getname_flags+0x1e4/0x540
[ 446.123992][ T7774] __x64_sys_unlinkat+0xc2/0xf0
[ 446.124015][ T7774] do_syscall_64+0xe2/0xf80
[ 446.124033][ T7774] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.124049][ T7774] ? trace_irq_disable+0x37/0x100
[ 446.124062][ T7774] ? clear_bhb_loop+0x60/0xb0
[ 446.124081][ T7774] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.124096][ T7774] RIP: 0033:0x7f7d20399fd7
[ 446.124112][ T7774] Code: 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 b8 07 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 446.124126][ T7774] RSP: 002b:00007fff12d15fe8 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
[ 446.124143][ T7774] RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f7d20399fd7
[ 446.124154][ T7774] RDX: 0000000000000200 RSI: 00007fff12d17190 RDI: 00000000ffffff9c
[ 446.124165][ T7774] RBP: 00007f7d2040471f R08: 0000000000018560 R09: 0000000000000001
[ 446.124175][ T7774] R10: 0000000000000000 R11: 0000000000000207 R12: 00007fff12d17190
[ 446.124185][ T7774] R13: 00007f7d2040471f R14: 000000000006cc16 R15: 00007fff12d19350
[ 446.124214][ T7774]
[ 446.124399][ T7774] CPU: 0 UID: 0 PID: 7774 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.124417][ T7774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.124426][ T7774] Call Trace:
[ 446.124432][ T7774]
[ 446.124437][ T7774] dump_stack_lvl+0xe8/0x150
[ 446.124457][ T7774] ext4_es_remove_extent+0x33b/0x4e0
[ 446.124484][ T7774] ext4_clear_inode+0x4f/0x2f0
[ 446.124507][ T7774] ext4_free_inode+0x346/0xf50
[ 446.124525][ T7774] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.124548][ T7774] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.124575][ T7774] ext4_evict_inode+0xb2a/0xe60
[ 446.124607][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.124630][ T7774] ? do_raw_spin_unlock+0xf5/0x210
[ 446.124646][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.124668][ T7774] evict+0x61e/0xb10
[ 446.124694][ T7774] ? __pfx_evict+0x10/0x10
[ 446.124714][ T7774] ? _raw_spin_unlock+0x28/0x50
[ 446.124730][ T7774] ? iput+0xcc2/0x1020
[ 446.124755][ T7774] vfs_rmdir+0x3f1/0x660
[ 446.124781][ T7774] do_rmdir+0x278/0x470
[ 446.124806][ T7774] ? __pfx_do_rmdir+0x10/0x10
[ 446.124832][ T7774] ? getname_flags+0x1e4/0x540
[ 446.124851][ T7774] __x64_sys_unlinkat+0xc2/0xf0
[ 446.124873][ T7774] do_syscall_64+0xe2/0xf80
[ 446.124891][ T7774] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.124905][ T7774] ? trace_irq_disable+0x37/0x100
[ 446.124918][ T7774] ? clear_bhb_loop+0x60/0xb0
[ 446.124943][ T7774] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.124958][ T7774] RIP: 0033:0x7f7d20399fd7
[ 446.124971][ T7774] Code: 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 b8 07 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 446.124984][ T7774] RSP: 002b:00007fff12d15fe8 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
[ 446.125000][ T7774] RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f7d20399fd7
[ 446.125011][ T7774] RDX: 0000000000000200 RSI: 00007fff12d17190 RDI: 00000000ffffff9c
[ 446.125022][ T7774] RBP: 00007f7d2040471f R08: 0000000000018560 R09: 0000000000000001
[ 446.125032][ T7774] R10: 0000000000000000 R11: 0000000000000207 R12: 00007fff12d17190
[ 446.125043][ T7774] R13: 00007f7d2040471f R14: 000000000006cc16 R15: 00007fff12d19350
[ 446.125070][ T7774]
[ 446.127324][ T7774] CPU: 0 UID: 0 PID: 7774 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.127346][ T7774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.127355][ T7774] Call Trace:
[ 446.127362][ T7774]
[ 446.127369][ T7774] dump_stack_lvl+0xe8/0x150
[ 446.127393][ T7774] ext4_es_remove_extent+0x33b/0x4e0
[ 446.127421][ T7774] ext4_ext_truncate+0x16a/0x2f0
[ 446.127445][ T7774] ext4_truncate+0xb63/0x1300
[ 446.127480][ T7774] ? __pfx_ext4_truncate+0x10/0x10
[ 446.127511][ T7774] ext4_evict_inode+0x863/0xe60
[ 446.127542][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.127566][ T7774] ? do_raw_spin_unlock+0xf5/0x210
[ 446.127583][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.127606][ T7774] evict+0x61e/0xb10
[ 446.127633][ T7774] ? __pfx_evict+0x10/0x10
[ 446.127653][ T7774] ? _raw_spin_unlock+0x28/0x50
[ 446.127669][ T7774] ? iput+0xcc2/0x1020
[ 446.127694][ T7774] do_unlinkat+0x354/0x590
[ 446.127720][ T7774] ? __pfx_do_unlinkat+0x10/0x10
[ 446.127747][ T7774] ? getname_flags+0x1e4/0x540
[ 446.127766][ T7774] __x64_sys_unlink+0x47/0x50
[ 446.127786][ T7774] do_syscall_64+0xe2/0xf80
[ 446.127804][ T7774] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.127818][ T7774] ? trace_irq_disable+0x37/0x100
[ 446.127832][ T7774] ? clear_bhb_loop+0x60/0xb0
[ 446.127850][ T7774] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.127865][ T7774] RIP: 0033:0x7f7d20399fa7
[ 446.127879][ T7774] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.127893][ T7774] RSP: 002b:00007fff12d15fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.127909][ T7774] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7d20399fa7
[ 446.127920][ T7774] RDX: 00007fff12d16010 RSI: 00007fff12d160a0 RDI: 00007fff12d160a0
[ 446.127937][ T7774] RBP: 00007fff12d160a0 R08: 00007fff12d170a0 R09: 00000000ffffffff
[ 446.127947][ T7774] R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff12d17190
[ 446.127958][ T7774] R13: 00007f7d2040471f R14: 000000000006cc16 R15: 00007fff12d19350
[ 446.127986][ T7774]
[ 446.128088][ T7774] CPU: 0 UID: 0 PID: 7774 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.128106][ T7774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.128115][ T7774] Call Trace:
[ 446.128121][ T7774]
[ 446.128127][ T7774] dump_stack_lvl+0xe8/0x150
[ 446.128145][ T7774] ext4_es_remove_extent+0x33b/0x4e0
[ 446.128171][ T7774] ext4_clear_inode+0x4f/0x2f0
[ 446.128195][ T7774] ext4_free_inode+0x346/0xf50
[ 446.128213][ T7774] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.128235][ T7774] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.128262][ T7774] ext4_evict_inode+0xb2a/0xe60
[ 446.128293][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.128317][ T7774] ? do_raw_spin_unlock+0xf5/0x210
[ 446.128333][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.128355][ T7774] evict+0x61e/0xb10
[ 446.128381][ T7774] ? __pfx_evict+0x10/0x10
[ 446.128401][ T7774] ? _raw_spin_unlock+0x28/0x50
[ 446.128416][ T7774] ? iput+0xcc2/0x1020
[ 446.128441][ T7774] do_unlinkat+0x354/0x590
[ 446.128466][ T7774] ? __pfx_do_unlinkat+0x10/0x10
[ 446.128491][ T7774] ? getname_flags+0x1e4/0x540
[ 446.128510][ T7774] __x64_sys_unlink+0x47/0x50
[ 446.128530][ T7774] do_syscall_64+0xe2/0xf80
[ 446.128547][ T7774] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.128562][ T7774] ? trace_irq_disable+0x37/0x100
[ 446.128575][ T7774] ? clear_bhb_loop+0x60/0xb0
[ 446.128594][ T7774] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.128609][ T7774] RIP: 0033:0x7f7d20399fa7
[ 446.128622][ T7774] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.128635][ T7774] RSP: 002b:00007fff12d15fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.128650][ T7774] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7d20399fa7
[ 446.128660][ T7774] RDX: 00007fff12d16010 RSI: 00007fff12d160a0 RDI: 00007fff12d160a0
[ 446.128671][ T7774] RBP: 00007fff12d160a0 R08: 00007fff12d170a0 R09: 00000000ffffffff
[ 446.128682][ T7774] R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff12d17190
[ 446.128692][ T7774] R13: 00007f7d2040471f R14: 000000000006cc16 R15: 00007fff12d19350
[ 446.128720][ T7774]
[ 446.129142][ T7774] CPU: 0 UID: 0 PID: 7774 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.129160][ T7774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.129169][ T7774] Call Trace:
[ 446.129176][ T7774]
[ 446.129183][ T7774] dump_stack_lvl+0xe8/0x150
[ 446.129202][ T7774] ext4_es_remove_extent+0x33b/0x4e0
[ 446.129228][ T7774] ext4_clear_inode+0x4f/0x2f0
[ 446.129250][ T7774] ext4_free_inode+0x346/0xf50
[ 446.129267][ T7774] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.129290][ T7774] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.129316][ T7774] ext4_evict_inode+0xb2a/0xe60
[ 446.129348][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.129371][ T7774] ? do_raw_spin_unlock+0xf5/0x210
[ 446.129387][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.129409][ T7774] evict+0x61e/0xb10
[ 446.129436][ T7774] ? __pfx_evict+0x10/0x10
[ 446.129455][ T7774] ? _raw_spin_unlock+0x28/0x50
[ 446.129477][ T7774] ? iput+0xcc2/0x1020
[ 446.129502][ T7774] do_unlinkat+0x354/0x590
[ 446.129527][ T7774] ? __pfx_do_unlinkat+0x10/0x10
[ 446.129553][ T7774] ? getname_flags+0x1e4/0x540
[ 446.129572][ T7774] __x64_sys_unlink+0x47/0x50
[ 446.129592][ T7774] do_syscall_64+0xe2/0xf80
[ 446.129610][ T7774] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.129624][ T7774] ? trace_irq_disable+0x37/0x100
[ 446.129637][ T7774] ? clear_bhb_loop+0x60/0xb0
[ 446.129660][ T7774] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.129674][ T7774] RIP: 0033:0x7f7d20399fa7
[ 446.129687][ T7774] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.129700][ T7774] RSP: 002b:00007fff12d15fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.129716][ T7774] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7d20399fa7
[ 446.129727][ T7774] RDX: 00007fff12d16010 RSI: 00007fff12d160a0 RDI: 00007fff12d160a0
[ 446.129738][ T7774] RBP: 00007fff12d160a0 R08: 00007fff12d170a0 R09: 00000000ffffffff
[ 446.129749][ T7774] R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff12d17190
[ 446.129759][ T7774] R13: 00007f7d2040471f R14: 000000000006cc16 R15: 00007fff12d19350
[ 446.129787][ T7774]
[ 446.130392][ T7774] CPU: 0 UID: 0 PID: 7774 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.130411][ T7774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.130420][ T7774] Call Trace:
[ 446.130427][ T7774]
[ 446.130433][ T7774] dump_stack_lvl+0xe8/0x150
[ 446.130454][ T7774] ext4_es_remove_extent+0x33b/0x4e0
[ 446.130481][ T7774] ext4_clear_inode+0x4f/0x2f0
[ 446.130504][ T7774] ext4_free_inode+0x346/0xf50
[ 446.130522][ T7774] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.130545][ T7774] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.130571][ T7774] ext4_evict_inode+0xb2a/0xe60
[ 446.130603][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.130626][ T7774] ? do_raw_spin_unlock+0xf5/0x210
[ 446.130642][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.130664][ T7774] evict+0x61e/0xb10
[ 446.130690][ T7774] ? __pfx_evict+0x10/0x10
[ 446.130707][ T7774] ? _raw_spin_unlock+0x28/0x50
[ 446.130721][ T7774] ? iput+0xcc2/0x1020
[ 446.130745][ T7774] vfs_rmdir+0x3f1/0x660
[ 446.130771][ T7774] do_rmdir+0x278/0x470
[ 446.130796][ T7774] ? __pfx_do_rmdir+0x10/0x10
[ 446.130823][ T7774] ? getname_flags+0x1e4/0x540
[ 446.130842][ T7774] __x64_sys_unlinkat+0xc2/0xf0
[ 446.130865][ T7774] do_syscall_64+0xe2/0xf80
[ 446.130882][ T7774] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.130897][ T7774] ? trace_irq_disable+0x37/0x100
[ 446.130910][ T7774] ? clear_bhb_loop+0x60/0xb0
[ 446.130928][ T7774] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.130953][ T7774] RIP: 0033:0x7f7d20399fd7
[ 446.130967][ T7774] Code: 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 b8 07 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 446.130980][ T7774] RSP: 002b:00007fff12d15fe8 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
[ 446.130995][ T7774] RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f7d20399fd7
[ 446.131006][ T7774] RDX: 0000000000000200 RSI: 00007fff12d17190 RDI: 00000000ffffff9c
[ 446.131017][ T7774] RBP: 00007f7d2040471f R08: 0000000000018560 R09: 00000000ffffffff
[ 446.131028][ T7774] R10: 0000000000000100 R11: 0000000000000207 R12: 00007fff12d17190
[ 446.131038][ T7774] R13: 00007f7d2040471f R14: 000000000006cc16 R15: 00007fff12d19350
[ 446.131066][ T7774]
[ 446.131578][ T7774] CPU: 0 UID: 0 PID: 7774 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.131597][ T7774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.131607][ T7774] Call Trace:
[ 446.131613][ T7774]
[ 446.131620][ T7774] dump_stack_lvl+0xe8/0x150
[ 446.131640][ T7774] ext4_es_remove_extent+0x33b/0x4e0
[ 446.131666][ T7774] ext4_clear_inode+0x4f/0x2f0
[ 446.131688][ T7774] ext4_free_inode+0x346/0xf50
[ 446.131705][ T7774] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.131728][ T7774] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.131754][ T7774] ext4_evict_inode+0xb2a/0xe60
[ 446.131786][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.131809][ T7774] ? do_raw_spin_unlock+0xf5/0x210
[ 446.131825][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.131847][ T7774] evict+0x61e/0xb10
[ 446.131874][ T7774] ? __pfx_evict+0x10/0x10
[ 446.131893][ T7774] ? _raw_spin_unlock+0x28/0x50
[ 446.131910][ T7774] ? iput+0xcc2/0x1020
[ 446.131969][ T7774] do_unlinkat+0x354/0x590
[ 446.131995][ T7774] ? __pfx_do_unlinkat+0x10/0x10
[ 446.132021][ T7774] ? getname_flags+0x1e4/0x540
[ 446.132040][ T7774] __x64_sys_unlink+0x47/0x50
[ 446.132059][ T7774] do_syscall_64+0xe2/0xf80
[ 446.132077][ T7774] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.132092][ T7774] ? trace_irq_disable+0x37/0x100
[ 446.132105][ T7774] ? clear_bhb_loop+0x60/0xb0
[ 446.132129][ T7774] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.132144][ T7774] RIP: 0033:0x7f7d20399fa7
[ 446.132157][ T7774] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.132170][ T7774] RSP: 002b:00007fff12d170d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.132187][ T7774] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7d20399fa7
[ 446.132197][ T7774] RDX: 00007fff12d17100 RSI: 00007fff12d17190 RDI: 00007fff12d17190
[ 446.132208][ T7774] RBP: 00007fff12d17190 R08: 00007fff12d18190 R09: 00000000ffffffff
[ 446.132219][ T7774] R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff12d18280
[ 446.132230][ T7774] R13: 00007f7d2040471f R14: 000000000006cc16 R15: 00007fff12d19350
[ 446.132257][ T7774]
[ 446.137243][ T7774] CPU: 0 UID: 0 PID: 7774 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.137267][ T7774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.137276][ T7774] Call Trace:
[ 446.137283][ T7774]
[ 446.137291][ T7774] dump_stack_lvl+0xe8/0x150
[ 446.137314][ T7774] ext4_es_remove_extent+0x33b/0x4e0
[ 446.137342][ T7774] ext4_ext_truncate+0x16a/0x2f0
[ 446.137366][ T7774] ext4_truncate+0xb63/0x1300
[ 446.137397][ T7774] ? __pfx_ext4_truncate+0x10/0x10
[ 446.137427][ T7774] ext4_evict_inode+0x863/0xe60
[ 446.137459][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.137482][ T7774] ? do_raw_spin_unlock+0xf5/0x210
[ 446.137499][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.137521][ T7774] evict+0x61e/0xb10
[ 446.137549][ T7774] ? __pfx_evict+0x10/0x10
[ 446.137569][ T7774] ? _raw_spin_unlock+0x28/0x50
[ 446.137584][ T7774] ? iput+0xcc2/0x1020
[ 446.137610][ T7774] do_unlinkat+0x354/0x590
[ 446.137636][ T7774] ? __pfx_do_unlinkat+0x10/0x10
[ 446.137662][ T7774] ? getname_flags+0x1e4/0x540
[ 446.137681][ T7774] __x64_sys_unlink+0x47/0x50
[ 446.137701][ T7774] do_syscall_64+0xe2/0xf80
[ 446.137720][ T7774] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.137735][ T7774] ? trace_irq_disable+0x37/0x100
[ 446.137748][ T7774] ? clear_bhb_loop+0x60/0xb0
[ 446.137768][ T7774] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.137783][ T7774] RIP: 0033:0x7f7d20399fa7
[ 446.137798][ T7774] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.137812][ T7774] RSP: 002b:00007fff12d170d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.137829][ T7774] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7d20399fa7
[ 446.137840][ T7774] RDX: 00007fff12d17100 RSI: 00007fff12d17190 RDI: 00007fff12d17190
[ 446.137851][ T7774] RBP: 00007fff12d17190 R08: 00007fff12d18190 R09: 00000000ffffffff
[ 446.137862][ T7774] R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff12d18280
[ 446.137872][ T7774] R13: 00007f7d2040471f R14: 000000000006cc16 R15: 00007fff12d19350
[ 446.137900][ T7774]
[ 446.138016][ T7774] CPU: 0 UID: 0 PID: 7774 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.138033][ T7774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.138042][ T7774] Call Trace:
[ 446.138049][ T7774]
[ 446.138056][ T7774] dump_stack_lvl+0xe8/0x150
[ 446.138075][ T7774] ext4_es_remove_extent+0x33b/0x4e0
[ 446.138101][ T7774] ext4_clear_inode+0x4f/0x2f0
[ 446.138123][ T7774] ext4_free_inode+0x346/0xf50
[ 446.138140][ T7774] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.138163][ T7774] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.138190][ T7774] ext4_evict_inode+0xb2a/0xe60
[ 446.138221][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.138245][ T7774] ? do_raw_spin_unlock+0xf5/0x210
[ 446.138261][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.138283][ T7774] evict+0x61e/0xb10
[ 446.138309][ T7774] ? __pfx_evict+0x10/0x10
[ 446.138329][ T7774] ? _raw_spin_unlock+0x28/0x50
[ 446.138345][ T7774] ? iput+0xcc2/0x1020
[ 446.138369][ T7774] do_unlinkat+0x354/0x590
[ 446.138395][ T7774] ? __pfx_do_unlinkat+0x10/0x10
[ 446.138420][ T7774] ? getname_flags+0x1e4/0x540
[ 446.138440][ T7774] __x64_sys_unlink+0x47/0x50
[ 446.138459][ T7774] do_syscall_64+0xe2/0xf80
[ 446.138477][ T7774] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.138491][ T7774] ? trace_irq_disable+0x37/0x100
[ 446.138504][ T7774] ? clear_bhb_loop+0x60/0xb0
[ 446.138523][ T7774] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.138538][ T7774] RIP: 0033:0x7f7d20399fa7
[ 446.138551][ T7774] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.138563][ T7774] RSP: 002b:00007fff12d170d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.138578][ T7774] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7d20399fa7
[ 446.138589][ T7774] RDX: 00007fff12d17100 RSI: 00007fff12d17190 RDI: 00007fff12d17190
[ 446.138599][ T7774] RBP: 00007fff12d17190 R08: 00007fff12d18190 R09: 00000000ffffffff
[ 446.138610][ T7774] R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff12d18280
[ 446.138620][ T7774] R13: 00007f7d2040471f R14: 000000000006cc16 R15: 00007fff12d19350
[ 446.138648][ T7774]
[ 446.151732][ T8145] EXT4-fs warning (device loop9): __es_insert_extent:852: inode #18: comm syz.9.50: __es_insert_extent: add lblk:0 len:4294967295 pblk:576460752303423487 status:0x8]
[ 446.151732][ T8145]
[ 446.244342][ T30] audit: type=1800 audit(1770804126.568:11): pid=8133 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed comm="syz.3.63" name="file1" dev="loop3" ino=15 res=0 errno=0
[ 446.251641][ T7867] EXT4-fs warning (device loop3): ext4_cache_extents:532: inode #11: comm syz-executor: ext4_cache_extents: caching extents
[ 446.251641][ T7867]
[ 446.261992][ T7774] CPU: 0 UID: 0 PID: 7774 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.262017][ T7774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.262028][ T7774] Call Trace:
[ 446.262035][ T7774]
[ 446.262042][ T7774] dump_stack_lvl+0xe8/0x150
[ 446.262065][ T7774] ext4_es_remove_extent+0x33b/0x4e0
[ 446.262094][ T7774] ext4_clear_inode+0x4f/0x2f0
[ 446.262118][ T7774] ext4_free_inode+0x346/0xf50
[ 446.262136][ T7774] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.262159][ T7774] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.262186][ T7774] ext4_evict_inode+0xb2a/0xe60
[ 446.262217][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.262241][ T7774] ? do_raw_spin_unlock+0xf5/0x210
[ 446.262257][ T7774] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.262279][ T7774] evict+0x61e/0xb10
[ 446.262307][ T7774] ? __pfx_evict+0x10/0x10
[ 446.262327][ T7774] ? _raw_spin_unlock+0x28/0x50
[ 446.262344][ T7774] ? iput+0xcc2/0x1020
[ 446.262369][ T7774] do_unlinkat+0x354/0x590
[ 446.262396][ T7774] ? __pfx_do_unlinkat+0x10/0x10
[ 446.262421][ T7774] ? getname_flags+0x1e4/0x540
[ 446.262440][ T7774] __x64_sys_unlink+0x47/0x50
[ 446.262460][ T7774] do_syscall_64+0xe2/0xf80
[ 446.262478][ T7774] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.262493][ T7774] ? trace_irq_disable+0x37/0x100
[ 446.262506][ T7774] ? clear_bhb_loop+0x60/0xb0
[ 446.262525][ T7774] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.262540][ T7774] RIP: 0033:0x7f7d20399fa7
[ 446.262556][ T7774] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.262570][ T7774] RSP: 002b:00007fff12d170d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.262587][ T7774] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7d20399fa7
[ 446.262598][ T7774] RDX: 00007fff12d17100 RSI: 00007fff12d17190 RDI: 00007fff12d17190
[ 446.262609][ T7774] RBP: 00007fff12d17190 R08: 00007fff12d18190 R09: 00000000ffffffff
[ 446.262620][ T7774] R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff12d18280
[ 446.262631][ T7774] R13: 00007f7d2040471f R14: 000000000006cc16 R15: 00007fff12d19350
[ 446.262658][ T7774]
[ 446.266200][ T7775] CPU: 0 UID: 0 PID: 7775 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.266225][ T7775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.266235][ T7775] Call Trace:
[ 446.266242][ T7775]
[ 446.266249][ T7775] dump_stack_lvl+0xe8/0x150
[ 446.266273][ T7775] ext4_cache_extents+0x31a/0x340
[ 446.266292][ T7775] ? ext4_find_extent+0x2e3/0xa20
[ 446.266315][ T7775] ext4_find_extent+0x3a9/0xa20
[ 446.266341][ T7775] ext4_ext_map_blocks+0x27a/0x5730
[ 446.266367][ T7775] ? __page_table_check_zero+0x6a/0x3e0
[ 446.266397][ T7775] ? __page_table_check_zero+0x6a/0x3e0
[ 446.266421][ T7775] ? look_up_lock_class+0x57/0x110
[ 446.266442][ T7775] ? register_lock_class+0x31/0x2e0
[ 446.266466][ T7775] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 446.266488][ T7775] ? __lock_acquire+0x6b5/0x2cf0
[ 446.266518][ T7775] ? fs_reclaim_acquire+0x7c/0x100
[ 446.266542][ T7775] ext4_map_query_blocks+0x13b/0xa00
[ 446.266563][ T7775] ? ext4_map_blocks+0x42c/0x11d0
[ 446.266590][ T7775] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 446.266619][ T7775] ? down_read+0x272/0x2e0
[ 446.266636][ T7775] ? ext4_map_blocks+0x259/0x11d0
[ 446.266659][ T7775] ext4_map_blocks+0x444/0x11d0
[ 446.266691][ T7775] ? __pfx_ext4_map_blocks+0x10/0x10
[ 446.266728][ T7775] ext4_readdir+0xaf0/0x4000
[ 446.266773][ T7775] ? __pfx_ext4_readdir+0x10/0x10
[ 446.266787][ T7775] ? handle_mm_fault+0x2ca8/0x32a0
[ 446.266811][ T7775] ? iterate_dir+0x292/0x570
[ 446.266852][ T7775] ? iterate_dir+0x292/0x570
[ 446.266870][ T7775] ? down_read_killable+0x1bb/0x340
[ 446.266895][ T7775] iterate_dir+0x399/0x570
[ 446.266919][ T7775] __se_sys_getdents64+0xf1/0x280
[ 446.266939][ T7775] ? __pfx___se_sys_getdents64+0x10/0x10
[ 446.266955][ T7775] ? exc_page_fault+0x6a/0xc0
[ 446.266969][ T7775] ? __pfx_filldir64+0x10/0x10
[ 446.266990][ T7775] ? do_user_addr_fault+0xc7c/0x1360
[ 446.267019][ T7775] do_syscall_64+0xe2/0xf80
[ 446.267037][ T7775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.267052][ T7775] ? trace_irq_disable+0x37/0x100
[ 446.267066][ T7775] ? clear_bhb_loop+0x60/0xb0
[ 446.267086][ T7775] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.267102][ T7775] RIP: 0033:0x7f01e91c3873
[ 446.267117][ T7775] Code: c7 c0 e8 ff ff ff 64 c7 00 16 00 00 00 31 c0 eb 9e e8 81 9b fd ff 90 b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 c7 c2 e8 ff ff ff f7 d8
[ 446.267131][ T7775] RSP: 002b:00007ffcff28ad28 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9
[ 446.267149][ T7775] RAX: ffffffffffffffda RBX: 000055555ce0aa70 RCX: 00007f01e91c3873
[ 446.267161][ T7775] RDX: 0000000000008000 RSI: 000055555ce0aaa0 RDI: 0000000000000006
[ 446.267171][ T7775] RBP: 000055555ce0aaa0 R08: 00007f01e93e4cc0 R09: 0000000000000001
[ 446.267180][ T7775] R10: 0000000000000000 R11: 0000000000000293 R12: 000055555ce0aa74
[ 446.267190][ T7775] R13: ffffffffffffffe8 R14: 0000000000000016 R15: 00007ffcff28e0c0
[ 446.267219][ T7775]
[ 446.268861][ T7775] CPU: 0 UID: 0 PID: 7775 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.268887][ T7775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.268896][ T7775] Call Trace:
[ 446.268903][ T7775]
[ 446.268911][ T7775] dump_stack_lvl+0xe8/0x150
[ 446.268933][ T7775] ext4_es_remove_extent+0x33b/0x4e0
[ 446.268961][ T7775] ext4_ext_truncate+0x16a/0x2f0
[ 446.268985][ T7775] ext4_truncate+0xb63/0x1300
[ 446.269016][ T7775] ? __pfx_ext4_truncate+0x10/0x10
[ 446.269047][ T7775] ext4_evict_inode+0x863/0xe60
[ 446.269079][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.269103][ T7775] ? do_raw_spin_unlock+0xf5/0x210
[ 446.269120][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.269142][ T7775] evict+0x61e/0xb10
[ 446.269170][ T7775] ? __pfx_evict+0x10/0x10
[ 446.269191][ T7775] ? _raw_spin_unlock+0x28/0x50
[ 446.269207][ T7775] ? iput+0xcc2/0x1020
[ 446.269234][ T7775] vfs_rmdir+0x3f1/0x660
[ 446.269261][ T7775] do_rmdir+0x278/0x470
[ 446.269286][ T7775] ? __pfx_do_rmdir+0x10/0x10
[ 446.269313][ T7775] ? getname_flags+0x1e4/0x540
[ 446.269333][ T7775] __x64_sys_unlinkat+0xc2/0xf0
[ 446.269356][ T7775] do_syscall_64+0xe2/0xf80
[ 446.269374][ T7775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.269388][ T7775] ? trace_irq_disable+0x37/0x100
[ 446.269402][ T7775] ? clear_bhb_loop+0x60/0xb0
[ 446.269421][ T7775] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.269435][ T7775] RIP: 0033:0x7f01e9199fd7
[ 446.269451][ T7775] Code: 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 b8 07 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 446.269464][ T7775] RSP: 002b:00007ffcff28ad58 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
[ 446.269480][ T7775] RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f01e9199fd7
[ 446.269491][ T7775] RDX: 0000000000000200 RSI: 00007ffcff28bf00 RDI: 00000000ffffff9c
[ 446.269502][ T7775] RBP: 00007f01e920471f R08: 0000000000018560 R09: 0000000000000001
[ 446.269512][ T7775] R10: 0000000000000000 R11: 0000000000000207 R12: 00007ffcff28bf00
[ 446.269522][ T7775] R13: 00007f01e920471f R14: 000000000006cc71 R15: 00007ffcff28e0c0
[ 446.269551][ T7775]
[ 446.269729][ T7775] CPU: 0 UID: 0 PID: 7775 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.269746][ T7775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.269755][ T7775] Call Trace:
[ 446.269761][ T7775]
[ 446.269768][ T7775] dump_stack_lvl+0xe8/0x150
[ 446.269787][ T7775] ext4_es_remove_extent+0x33b/0x4e0
[ 446.269813][ T7775] ext4_clear_inode+0x4f/0x2f0
[ 446.269843][ T7775] ext4_free_inode+0x346/0xf50
[ 446.269861][ T7775] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.269884][ T7775] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.269911][ T7775] ext4_evict_inode+0xb2a/0xe60
[ 446.269943][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.269967][ T7775] ? do_raw_spin_unlock+0xf5/0x210
[ 446.269983][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.270005][ T7775] evict+0x61e/0xb10
[ 446.270032][ T7775] ? __pfx_evict+0x10/0x10
[ 446.270052][ T7775] ? _raw_spin_unlock+0x28/0x50
[ 446.270068][ T7775] ? iput+0xcc2/0x1020
[ 446.270092][ T7775] vfs_rmdir+0x3f1/0x660
[ 446.270119][ T7775] do_rmdir+0x278/0x470
[ 446.270144][ T7775] ? __pfx_do_rmdir+0x10/0x10
[ 446.270170][ T7775] ? getname_flags+0x1e4/0x540
[ 446.270189][ T7775] __x64_sys_unlinkat+0xc2/0xf0
[ 446.270212][ T7775] do_syscall_64+0xe2/0xf80
[ 446.270229][ T7775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.270244][ T7775] ? trace_irq_disable+0x37/0x100
[ 446.270257][ T7775] ? clear_bhb_loop+0x60/0xb0
[ 446.270276][ T7775] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.270291][ T7775] RIP: 0033:0x7f01e9199fd7
[ 446.270304][ T7775] Code: 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 b8 07 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 446.270317][ T7775] RSP: 002b:00007ffcff28ad58 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
[ 446.270332][ T7775] RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f01e9199fd7
[ 446.270344][ T7775] RDX: 0000000000000200 RSI: 00007ffcff28bf00 RDI: 00000000ffffff9c
[ 446.270355][ T7775] RBP: 00007f01e920471f R08: 0000000000018560 R09: 0000000000000001
[ 446.270365][ T7775] R10: 0000000000000000 R11: 0000000000000207 R12: 00007ffcff28bf00
[ 446.270375][ T7775] R13: 00007f01e920471f R14: 000000000006cc71 R15: 00007ffcff28e0c0
[ 446.270403][ T7775]
[ 446.271399][ T7775] CPU: 0 UID: 0 PID: 7775 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.271418][ T7775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.271428][ T7775] Call Trace:
[ 446.271435][ T7775]
[ 446.271442][ T7775] dump_stack_lvl+0xe8/0x150
[ 446.271462][ T7775] ext4_es_remove_extent+0x33b/0x4e0
[ 446.271489][ T7775] ext4_ext_truncate+0x16a/0x2f0
[ 446.271513][ T7775] ext4_truncate+0xb63/0x1300
[ 446.271543][ T7775] ? __pfx_ext4_truncate+0x10/0x10
[ 446.271573][ T7775] ext4_evict_inode+0x863/0xe60
[ 446.271605][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.271628][ T7775] ? do_raw_spin_unlock+0xf5/0x210
[ 446.271645][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.271666][ T7775] evict+0x61e/0xb10
[ 446.271693][ T7775] ? __pfx_evict+0x10/0x10
[ 446.271714][ T7775] ? _raw_spin_unlock+0x28/0x50
[ 446.271730][ T7775] ? iput+0xcc2/0x1020
[ 446.271755][ T7775] do_unlinkat+0x354/0x590
[ 446.271781][ T7775] ? __pfx_do_unlinkat+0x10/0x10
[ 446.271807][ T7775] ? getname_flags+0x1e4/0x540
[ 446.271833][ T7775] __x64_sys_unlink+0x47/0x50
[ 446.271853][ T7775] do_syscall_64+0xe2/0xf80
[ 446.271871][ T7775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.271886][ T7775] ? trace_irq_disable+0x37/0x100
[ 446.271899][ T7775] ? clear_bhb_loop+0x60/0xb0
[ 446.271918][ T7775] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.271933][ T7775] RIP: 0033:0x7f01e9199fa7
[ 446.271946][ T7775] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.271959][ T7775] RSP: 002b:00007ffcff28ad58 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.271975][ T7775] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f01e9199fa7
[ 446.271987][ T7775] RDX: 00007ffcff28ad80 RSI: 00007ffcff28ae10 RDI: 00007ffcff28ae10
[ 446.271998][ T7775] RBP: 00007ffcff28ae10 R08: 00007ffcff28be10 R09: 00000000ffffffff
[ 446.272009][ T7775] R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffcff28bf00
[ 446.272019][ T7775] R13: 00007f01e920471f R14: 000000000006cc71 R15: 00007ffcff28e0c0
[ 446.272045][ T7775]
[ 446.272152][ T7775] CPU: 0 UID: 0 PID: 7775 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.272168][ T7775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.272177][ T7775] Call Trace:
[ 446.272183][ T7775]
[ 446.272190][ T7775] dump_stack_lvl+0xe8/0x150
[ 446.272209][ T7775] ext4_es_remove_extent+0x33b/0x4e0
[ 446.272235][ T7775] ext4_clear_inode+0x4f/0x2f0
[ 446.272257][ T7775] ext4_free_inode+0x346/0xf50
[ 446.272274][ T7775] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.272297][ T7775] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.272324][ T7775] ext4_evict_inode+0xb2a/0xe60
[ 446.272356][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.272379][ T7775] ? do_raw_spin_unlock+0xf5/0x210
[ 446.272395][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.272417][ T7775] evict+0x61e/0xb10
[ 446.272443][ T7775] ? __pfx_evict+0x10/0x10
[ 446.272463][ T7775] ? _raw_spin_unlock+0x28/0x50
[ 446.272479][ T7775] ? iput+0xcc2/0x1020
[ 446.272504][ T7775] do_unlinkat+0x354/0x590
[ 446.272528][ T7775] ? __pfx_do_unlinkat+0x10/0x10
[ 446.272554][ T7775] ? getname_flags+0x1e4/0x540
[ 446.272573][ T7775] __x64_sys_unlink+0x47/0x50
[ 446.272593][ T7775] do_syscall_64+0xe2/0xf80
[ 446.272610][ T7775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.272624][ T7775] ? trace_irq_disable+0x37/0x100
[ 446.272638][ T7775] ? clear_bhb_loop+0x60/0xb0
[ 446.272657][ T7775] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.272671][ T7775] RIP: 0033:0x7f01e9199fa7
[ 446.272693][ T7775] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.272706][ T7775] RSP: 002b:00007ffcff28ad58 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.272722][ T7775] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f01e9199fa7
[ 446.272732][ T7775] RDX: 00007ffcff28ad80 RSI: 00007ffcff28ae10 RDI: 00007ffcff28ae10
[ 446.272743][ T7775] RBP: 00007ffcff28ae10 R08: 00007ffcff28be10 R09: 00000000ffffffff
[ 446.272754][ T7775] R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffcff28bf00
[ 446.272765][ T7775] R13: 00007f01e920471f R14: 000000000006cc71 R15: 00007ffcff28e0c0
[ 446.272792][ T7775]
[ 446.273300][ T7775] CPU: 0 UID: 0 PID: 7775 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.273319][ T7775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.273329][ T7775] Call Trace:
[ 446.273335][ T7775]
[ 446.273342][ T7775] dump_stack_lvl+0xe8/0x150
[ 446.273362][ T7775] ext4_es_remove_extent+0x33b/0x4e0
[ 446.273388][ T7775] ext4_clear_inode+0x4f/0x2f0
[ 446.273411][ T7775] ext4_free_inode+0x346/0xf50
[ 446.273429][ T7775] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.273452][ T7775] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.273478][ T7775] ext4_evict_inode+0xb2a/0xe60
[ 446.273509][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.273533][ T7775] ? do_raw_spin_unlock+0xf5/0x210
[ 446.273549][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.273571][ T7775] evict+0x61e/0xb10
[ 446.273598][ T7775] ? __pfx_evict+0x10/0x10
[ 446.273618][ T7775] ? _raw_spin_unlock+0x28/0x50
[ 446.273633][ T7775] ? iput+0xcc2/0x1020
[ 446.273659][ T7775] do_unlinkat+0x354/0x590
[ 446.273684][ T7775] ? __pfx_do_unlinkat+0x10/0x10
[ 446.273709][ T7775] ? getname_flags+0x1e4/0x540
[ 446.273728][ T7775] __x64_sys_unlink+0x47/0x50
[ 446.273748][ T7775] do_syscall_64+0xe2/0xf80
[ 446.273765][ T7775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.273779][ T7775] ? trace_irq_disable+0x37/0x100
[ 446.273793][ T7775] ? clear_bhb_loop+0x60/0xb0
[ 446.273812][ T7775] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.273833][ T7775] RIP: 0033:0x7f01e9199fa7
[ 446.273847][ T7775] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.273860][ T7775] RSP: 002b:00007ffcff28ad58 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.273876][ T7775] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f01e9199fa7
[ 446.273887][ T7775] RDX: 00007ffcff28ad80 RSI: 00007ffcff28ae10 RDI: 00007ffcff28ae10
[ 446.273898][ T7775] RBP: 00007ffcff28ae10 R08: 00007ffcff28be10 R09: 00000000ffffffff
[ 446.273909][ T7775] R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffcff28bf00
[ 446.273920][ T7775] R13: 00007f01e920471f R14: 000000000006cc71 R15: 00007ffcff28e0c0
[ 446.273947][ T7775]
[ 446.274502][ T7775] CPU: 0 UID: 0 PID: 7775 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.274521][ T7775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.274530][ T7775] Call Trace:
[ 446.274541][ T7775]
[ 446.274548][ T7775] dump_stack_lvl+0xe8/0x150
[ 446.274568][ T7775] ext4_es_remove_extent+0x33b/0x4e0
[ 446.274595][ T7775] ext4_clear_inode+0x4f/0x2f0
[ 446.274618][ T7775] ext4_free_inode+0x346/0xf50
[ 446.274636][ T7775] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.274659][ T7775] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.274689][ T7775] ext4_evict_inode+0xb2a/0xe60
[ 446.274721][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.274745][ T7775] ? do_raw_spin_unlock+0xf5/0x210
[ 446.274762][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.274783][ T7775] evict+0x61e/0xb10
[ 446.274811][ T7775] ? __pfx_evict+0x10/0x10
[ 446.274838][ T7775] ? _raw_spin_unlock+0x28/0x50
[ 446.274854][ T7775] ? iput+0xcc2/0x1020
[ 446.274879][ T7775] vfs_rmdir+0x3f1/0x660
[ 446.274906][ T7775] do_rmdir+0x278/0x470
[ 446.274932][ T7775] ? __pfx_do_rmdir+0x10/0x10
[ 446.274957][ T7775] ? getname_flags+0x1e4/0x540
[ 446.274976][ T7775] __x64_sys_unlinkat+0xc2/0xf0
[ 446.274999][ T7775] do_syscall_64+0xe2/0xf80
[ 446.275017][ T7775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.275032][ T7775] ? trace_irq_disable+0x37/0x100
[ 446.275046][ T7775] ? clear_bhb_loop+0x60/0xb0
[ 446.275064][ T7775] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.275078][ T7775] RIP: 0033:0x7f01e9199fd7
[ 446.275092][ T7775] Code: 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 b8 07 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 446.275105][ T7775] RSP: 002b:00007ffcff28ad58 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
[ 446.275121][ T7775] RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f01e9199fd7
[ 446.275132][ T7775] RDX: 0000000000000200 RSI: 00007ffcff28bf00 RDI: 00000000ffffff9c
[ 446.275142][ T7775] RBP: 00007f01e920471f R08: 0000000000018560 R09: 00000000ffffffff
[ 446.275153][ T7775] R10: 0000000000000100 R11: 0000000000000207 R12: 00007ffcff28bf00
[ 446.275163][ T7775] R13: 00007f01e920471f R14: 000000000006cc71 R15: 00007ffcff28e0c0
[ 446.275191][ T7775]
[ 446.276330][ T7775] CPU: 0 UID: 0 PID: 7775 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.276350][ T7775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.276360][ T7775] Call Trace:
[ 446.276366][ T7775]
[ 446.276373][ T7775] dump_stack_lvl+0xe8/0x150
[ 446.276394][ T7775] ext4_es_remove_extent+0x33b/0x4e0
[ 446.276419][ T7775] ext4_clear_inode+0x4f/0x2f0
[ 446.276442][ T7775] ext4_free_inode+0x346/0xf50
[ 446.276460][ T7775] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.276482][ T7775] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.276509][ T7775] ext4_evict_inode+0xb2a/0xe60
[ 446.276540][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.276564][ T7775] ? do_raw_spin_unlock+0xf5/0x210
[ 446.276579][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.276601][ T7775] evict+0x61e/0xb10
[ 446.276627][ T7775] ? __pfx_evict+0x10/0x10
[ 446.276647][ T7775] ? _raw_spin_unlock+0x28/0x50
[ 446.276663][ T7775] ? iput+0xcc2/0x1020
[ 446.276688][ T7775] do_unlinkat+0x354/0x590
[ 446.276713][ T7775] ? __pfx_do_unlinkat+0x10/0x10
[ 446.276739][ T7775] ? getname_flags+0x1e4/0x540
[ 446.276759][ T7775] __x64_sys_unlink+0x47/0x50
[ 446.276778][ T7775] do_syscall_64+0xe2/0xf80
[ 446.276796][ T7775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.276810][ T7775] ? trace_irq_disable+0x37/0x100
[ 446.276830][ T7775] ? clear_bhb_loop+0x60/0xb0
[ 446.276849][ T7775] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.276864][ T7775] RIP: 0033:0x7f01e9199fa7
[ 446.276877][ T7775] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.276890][ T7775] RSP: 002b:00007ffcff28be48 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.276906][ T7775] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f01e9199fa7
[ 446.276917][ T7775] RDX: 00007ffcff28be70 RSI: 00007ffcff28bf00 RDI: 00007ffcff28bf00
[ 446.276928][ T7775] RBP: 00007ffcff28bf00 R08: 00007ffcff28cf00 R09: 00000000ffffffff
[ 446.276939][ T7775] R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffcff28cff0
[ 446.276949][ T7775] R13: 00007f01e920471f R14: 000000000006cc71 R15: 00007ffcff28e0c0
[ 446.276977][ T7775]
[ 446.279543][ T7775] CPU: 0 UID: 0 PID: 7775 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.279565][ T7775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.279575][ T7775] Call Trace:
[ 446.279581][ T7775]
[ 446.279589][ T7775] dump_stack_lvl+0xe8/0x150
[ 446.279610][ T7775] ext4_es_remove_extent+0x33b/0x4e0
[ 446.279637][ T7775] ext4_ext_truncate+0x16a/0x2f0
[ 446.279661][ T7775] ext4_truncate+0xb63/0x1300
[ 446.279690][ T7775] ? __pfx_ext4_truncate+0x10/0x10
[ 446.279721][ T7775] ext4_evict_inode+0x863/0xe60
[ 446.279752][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.279776][ T7775] ? do_raw_spin_unlock+0xf5/0x210
[ 446.279793][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.279815][ T7775] evict+0x61e/0xb10
[ 446.279851][ T7775] ? __pfx_evict+0x10/0x10
[ 446.279871][ T7775] ? _raw_spin_unlock+0x28/0x50
[ 446.279886][ T7775] ? iput+0xcc2/0x1020
[ 446.279911][ T7775] do_unlinkat+0x354/0x590
[ 446.279937][ T7775] ? __pfx_do_unlinkat+0x10/0x10
[ 446.279964][ T7775] ? getname_flags+0x1e4/0x540
[ 446.279983][ T7775] __x64_sys_unlink+0x47/0x50
[ 446.280003][ T7775] do_syscall_64+0xe2/0xf80
[ 446.280021][ T7775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.280035][ T7775] ? trace_irq_disable+0x37/0x100
[ 446.280049][ T7775] ? clear_bhb_loop+0x60/0xb0
[ 446.280068][ T7775] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.280082][ T7775] RIP: 0033:0x7f01e9199fa7
[ 446.280097][ T7775] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.280110][ T7775] RSP: 002b:00007ffcff28be48 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.280127][ T7775] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f01e9199fa7
[ 446.280137][ T7775] RDX: 00007ffcff28be70 RSI: 00007ffcff28bf00 RDI: 00007ffcff28bf00
[ 446.280148][ T7775] RBP: 00007ffcff28bf00 R08: 00007ffcff28cf00 R09: 00000000ffffffff
[ 446.280159][ T7775] R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffcff28cff0
[ 446.280169][ T7775] R13: 00007f01e920471f R14: 000000000006cc71 R15: 00007ffcff28e0c0
[ 446.280198][ T7775]
[ 446.280314][ T7775] CPU: 0 UID: 0 PID: 7775 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.280332][ T7775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.280341][ T7775] Call Trace:
[ 446.280347][ T7775]
[ 446.280354][ T7775] dump_stack_lvl+0xe8/0x150
[ 446.280372][ T7775] ext4_es_remove_extent+0x33b/0x4e0
[ 446.280398][ T7775] ext4_clear_inode+0x4f/0x2f0
[ 446.280421][ T7775] ext4_free_inode+0x346/0xf50
[ 446.280438][ T7775] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.280461][ T7775] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.280487][ T7775] ext4_evict_inode+0xb2a/0xe60
[ 446.280518][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.280541][ T7775] ? do_raw_spin_unlock+0xf5/0x210
[ 446.280557][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.280578][ T7775] evict+0x61e/0xb10
[ 446.280605][ T7775] ? __pfx_evict+0x10/0x10
[ 446.280624][ T7775] ? _raw_spin_unlock+0x28/0x50
[ 446.280639][ T7775] ? iput+0xcc2/0x1020
[ 446.280664][ T7775] do_unlinkat+0x354/0x590
[ 446.280690][ T7775] ? __pfx_do_unlinkat+0x10/0x10
[ 446.280716][ T7775] ? getname_flags+0x1e4/0x540
[ 446.280735][ T7775] __x64_sys_unlink+0x47/0x50
[ 446.280754][ T7775] do_syscall_64+0xe2/0xf80
[ 446.280772][ T7775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.280786][ T7775] ? trace_irq_disable+0x37/0x100
[ 446.280799][ T7775] ? clear_bhb_loop+0x60/0xb0
[ 446.280818][ T7775] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.280838][ T7775] RIP: 0033:0x7f01e9199fa7
[ 446.280851][ T7775] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.280864][ T7775] RSP: 002b:00007ffcff28be48 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.280879][ T7775] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f01e9199fa7
[ 446.280890][ T7775] RDX: 00007ffcff28be70 RSI: 00007ffcff28bf00 RDI: 00007ffcff28bf00
[ 446.280901][ T7775] RBP: 00007ffcff28bf00 R08: 00007ffcff28cf00 R09: 00000000ffffffff
[ 446.280912][ T7775] R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffcff28cff0
[ 446.280923][ T7775] R13: 00007f01e920471f R14: 000000000006cc71 R15: 00007ffcff28e0c0
[ 446.280950][ T7775]
[ 446.281572][ T7775] CPU: 0 UID: 0 PID: 7775 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 446.281591][ T7775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.281600][ T7775] Call Trace:
[ 446.281607][ T7775]
[ 446.281614][ T7775] dump_stack_lvl+0xe8/0x150
[ 446.281634][ T7775] ext4_es_remove_extent+0x33b/0x4e0
[ 446.281660][ T7775] ext4_clear_inode+0x4f/0x2f0
[ 446.281683][ T7775] ext4_free_inode+0x346/0xf50
[ 446.281700][ T7775] ? ext4_mark_iloc_dirty+0x6ec/0x1c90
[ 446.281723][ T7775] ? __pfx_ext4_free_inode+0x10/0x10
[ 446.281749][ T7775] ext4_evict_inode+0xb2a/0xe60
[ 446.281781][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.281805][ T7775] ? do_raw_spin_unlock+0xf5/0x210
[ 446.281821][ T7775] ? __pfx_ext4_evict_inode+0x10/0x10
[ 446.281851][ T7775] evict+0x61e/0xb10
[ 446.281878][ T7775] ? __pfx_evict+0x10/0x10
[ 446.281898][ T7775] ? _raw_spin_unlock+0x28/0x50
[ 446.281914][ T7775] ? iput+0xcc2/0x1020
[ 446.281938][ T7775] do_unlinkat+0x354/0x590
[ 446.281964][ T7775] ? __pfx_do_unlinkat+0x10/0x10
[ 446.281990][ T7775] ? getname_flags+0x1e4/0x540
[ 446.282009][ T7775] __x64_sys_unlink+0x47/0x50
[ 446.282029][ T7775] do_syscall_64+0xe2/0xf80
[ 446.282046][ T7775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.282060][ T7775] ? trace_irq_disable+0x37/0x100
[ 446.282074][ T7775] ? clear_bhb_loop+0x60/0xb0
[ 446.282093][ T7775] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.282107][ T7775] RIP: 0033:0x7f01e9199fa7
[ 446.282121][ T7775] Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 446.282133][ T7775] RSP: 002b:00007ffcff28be48 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
[ 446.282148][ T7775] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f01e9199fa7
[ 446.282159][ T7775] RDX: 00007ffcff28be70 RSI: 00007ffcff28bf00 RDI: 00007ffcff28bf00
[ 446.282171][ T7775] RBP: 00007ffcff28bf00 R08: 00007ffcff28cf00 R09: 00000000ffffffff
[ 446.282182][ T7775] R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffcff28cff0
[ 446.282193][ T7775] R13: 00007f01e920471f R14: 000000000006cc71 R15: 00007ffcff28e0c0
[ 446.282220][ T7775]
[ 446.282555][ T8145] CPU: 0 UID: 0 PID: 8145 Comm: syz.9.50 Not tainted syzkaller #0 PREEMPT(full)
[ 446.282573][ T8145] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 446.282581][ T8145] Call Trace:
[ 446.282587][ T8145]