: 249 > 9
[ 540.147487][ T6377] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 540.151817][ T9505] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 540.157875][ T6377] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 540.166686][ T9505] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 540.175968][ T6377] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 540.213901][ T9505] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 540.264220][ T9505] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 540.272264][ T9505] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 540.300262][ T9505] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 540.316819][ T6885] hsr_slave_0: left promiscuous mode
[ 540.324123][ T6885] hsr_slave_1: left promiscuous mode
[ 540.330347][ T6885] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 540.338765][ T6885] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 540.347808][ T6885] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 540.356135][ T6885] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 540.373685][ T6885] veth1_macvtap: left promiscuous mode
[ 540.379479][ T6885] veth0_macvtap: left promiscuous mode
[ 540.385816][ T6885] veth1_vlan: left promiscuous mode
[ 540.391980][ T6885] veth0_vlan: left promiscuous mode
[ 540.565604][ T6376] Bluetooth: hci4: command tx timeout
[ 540.724569][ T6376] Bluetooth: hci1: command tx timeout
[ 540.853818][ T6885] team0 (unregistering): Port device team_slave_1 removed
[ 540.893412][ T6885] team0 (unregistering): Port device team_slave_0 removed
[ 541.120999][ T6376] Bluetooth: hci2: command tx timeout
[ 541.429125][ T9505] hsr_slave_0: entered promiscuous mode
[ 541.439358][ T9505] hsr_slave_1: entered promiscuous mode
[ 541.462370][ T64] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 541.477375][ T64] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 541.651718][ T1967] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 541.660835][ T1967] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 541.725891][ T9392] EXT4-fs warning: 34 callbacks suppressed
[ 541.725910][ T9392] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2214: comm syz-executor: ext4_cache_extents: caching extents
[ 541.725910][ T9392]
[ 541.756592][ T9392] CPU: 0 UID: 0 PID: 9392 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 541.756614][ T9392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 541.756625][ T9392] Call Trace:
[ 541.756632][ T9392]
[ 541.756640][ T9392] dump_stack_lvl+0xe8/0x150
[ 541.756663][ T9392] ext4_cache_extents+0x31a/0x340
[ 541.756682][ T9392] ? ext4_find_extent+0x2e3/0xa20
[ 541.756704][ T9392] ext4_find_extent+0x3a9/0xa20
[ 541.756731][ T9392] ext4_ext_map_blocks+0x283/0x5760
[ 541.756762][ T9392] ? __lock_acquire+0x6b5/0x2cf0
[ 541.756793][ T9392] ? look_up_lock_class+0x57/0x110
[ 541.756813][ T9392] ? register_lock_class+0x31/0x2e0
[ 541.756832][ T9392] ? look_up_lock_class+0x57/0x110
[ 541.756852][ T9392] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 541.756874][ T9392] ? __lock_acquire+0x6b5/0x2cf0
[ 541.756913][ T9392] ext4_map_query_blocks+0x13b/0xa00
[ 541.756934][ T9392] ? ext4_map_blocks+0x42c/0x11d0
[ 541.756961][ T9392] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 541.756996][ T9392] ? down_read+0x272/0x2e0
[ 541.757014][ T9392] ? ext4_map_blocks+0x259/0x11d0
[ 541.757037][ T9392] ext4_map_blocks+0x444/0x11d0
[ 541.757068][ T9392] ? __pfx_ext4_map_blocks+0x10/0x10
[ 541.757103][ T9392] ext4_append+0x22e/0x560
[ 541.757128][ T9392] ? __pfx_ext4_append+0x10/0x10
[ 541.757153][ T9392] ? set_nlink+0x5f/0x170
[ 541.757178][ T9392] ext4_init_new_dir+0x11f/0x1c0
[ 541.757201][ T9392] ext4_mkdir+0x49b/0xbf0
[ 541.757232][ T9392] ? __pfx_ext4_mkdir+0x10/0x10
[ 541.757256][ T9392] ? inode_permission+0x2fd/0x5f0
[ 541.757271][ T9392] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 541.757290][ T9392] vfs_mkdir+0x753/0x870
[ 541.757319][ T9392] do_mkdirat+0x27d/0x4b0
[ 541.757346][ T9392] ? __pfx_do_mkdirat+0x10/0x10
[ 541.757370][ T9392] ? getname_flags+0x1e4/0x540
[ 541.757391][ T9392] __x64_sys_mkdirat+0x87/0xa0
[ 541.757413][ T9392] do_syscall_64+0xe2/0xf80
[ 541.757431][ T9392] ? rcu_is_watching+0x15/0xb0
[ 541.757451][ T9392] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 541.757467][ T9392] ? clear_bhb_loop+0x60/0xb0
[ 541.757486][ T9392] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 541.757502][ T9392] RIP: 0033:0x7f3419d99d97
[ 541.757520][ T9392] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 541.757534][ T9392] RSP: 002b:00007ffc1011ffa8 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 541.757560][ T9392] RAX: ffffffffffffffda RBX: 00007f3419e05adc RCX: 00007f3419d99d97
[ 541.757572][ T9392] RDX: 00000000000001ff RSI: 00007f3419e05adc RDI: 00000000ffffff9c
[ 541.757583][ T9392] RBP: 00007ffc10120030 R08: 0000000000000000 R09: 0000000000000000
[ 541.757594][ T9392] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc10120038
[ 541.757604][ T9392] R13: 0000000000000002 R14: 00007ffc10120218 R15: 0000000000000000
[ 541.757634][ T9392]
[ 541.757795][ T9392] EXT4-fs warning (device sda1): ext4_es_cache_extent:1045: inode #2214: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:-1 pblk:-1 status:0x8
[ 541.757795][ T9392]
[ 541.994347][ T9529] chnl_net:caif_netlink_parms(): no params data found
[ 542.034482][ T9392] EXT4-fs warning (device sda1): __es_insert_extent:852: inode #2214: comm syz-executor: __es_insert_extent: add [0, -2, 576460752303423487, 0x8]
[ 542.034482][ T9392]
[ 542.049826][ T9527] chnl_net:caif_netlink_parms(): no params data found
[ 542.063990][ T9392] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2214: comm syz-executor: ext4_cache_extents: caching extents
[ 542.063990][ T9392]
[ 542.160281][ T9392] CPU: 0 UID: 0 PID: 9392 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 542.160306][ T9392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 542.160316][ T9392] Call Trace:
[ 542.160323][ T9392]
[ 542.160332][ T9392] dump_stack_lvl+0xe8/0x150
[ 542.160357][ T9392] ext4_cache_extents+0x31a/0x340
[ 542.160377][ T9392] ? ext4_find_extent+0x2e3/0xa20
[ 542.160401][ T9392] ext4_find_extent+0x3a9/0xa20
[ 542.160428][ T9392] ext4_ext_map_blocks+0x283/0x5760
[ 542.160461][ T9392] ? __lock_acquire+0x6b5/0x2cf0
[ 542.160484][ T9392] ? __lock_acquire+0x6b5/0x2cf0
[ 542.160511][ T9392] ? __lock_acquire+0x6b5/0x2cf0
[ 542.160536][ T9392] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 542.160561][ T9392] ? ext4_map_blocks+0x7b5/0x11d0
[ 542.160603][ T9392] ext4_map_create_blocks+0x11d/0x540
[ 542.160633][ T9392] ext4_map_blocks+0x7cd/0x11d0
[ 542.160666][ T9392] ? __pfx_ext4_map_blocks+0x10/0x10
[ 542.160703][ T9392] ext4_getblk+0x1ca/0x780
[ 542.160729][ T9392] ? __pfx_ext4_getblk+0x10/0x10
[ 542.160763][ T9392] ext4_bread+0x2a/0x180
[ 542.160786][ T9392] ext4_append+0x2ba/0x560
[ 542.160813][ T9392] ? __pfx_ext4_append+0x10/0x10
[ 542.160844][ T9392] ? set_nlink+0x5f/0x170
[ 542.160863][ T9392] ext4_init_new_dir+0x11f/0x1c0
[ 542.160884][ T9392] ext4_mkdir+0x49b/0xbf0
[ 542.160917][ T9392] ? __pfx_ext4_mkdir+0x10/0x10
[ 542.160942][ T9392] ? inode_permission+0x2fd/0x5f0
[ 542.160958][ T9392] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 542.160977][ T9392] vfs_mkdir+0x753/0x870
[ 542.161004][ T9392] do_mkdirat+0x27d/0x4b0
[ 542.161030][ T9392] ? __pfx_do_mkdirat+0x10/0x10
[ 542.161054][ T9392] ? getname_flags+0x1e4/0x540
[ 542.161072][ T9392] __x64_sys_mkdirat+0x87/0xa0
[ 542.161092][ T9392] do_syscall_64+0xe2/0xf80
[ 542.161109][ T9392] ? rcu_is_watching+0x15/0xb0
[ 542.161129][ T9392] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 542.161144][ T9392] ? clear_bhb_loop+0x60/0xb0
[ 542.161163][ T9392] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 542.161179][ T9392] RIP: 0033:0x7f3419d99d97
[ 542.161194][ T9392] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 542.161208][ T9392] RSP: 002b:00007ffc1011ffa8 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 542.161225][ T9392] RAX: ffffffffffffffda RBX: 00007f3419e05adc RCX: 00007f3419d99d97
[ 542.161236][ T9392] RDX: 00000000000001ff RSI: 00007f3419e05adc RDI: 00000000ffffff9c
[ 542.161246][ T9392] RBP: 00007ffc10120030 R08: 0000000000000000 R09: 0000000000000000
[ 542.161256][ T9392] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc10120038
[ 542.161266][ T9392] R13: 0000000000000002 R14: 00007ffc10120218 R15: 0000000000000000
[ 542.161299][ T9392]
[ 542.447511][ T6376] Bluetooth: hci0: command tx timeout
[ 542.454388][ T9392] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6274: inode #2214: comm syz-executor: ext4_mb_new_blocks: Allocation requested for: [0, 0]
[ 542.454388][ T9392]
[ 542.472937][ T9392] EXT4-fs warning (device sda1): ext4_mb_regular_allocator:3120: inode #2214: comm syz-executor: ext4_mb_regular_allocator: Best len 1, origin len 1, ac_status 2, ac_flags 0x0, cr 1 ret 0
[ 542.472937][ T9392]
[ 542.495982][ T9392] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6363: inode #2214: comm syz-executor: ext4_mb_new_blocks: Allocation found: [0, 0], pblk:5896 len:1
[ 542.495982][ T9392]
[ 542.514742][ T9392] EXT4-fs warning (device sda1): ext4_ext_insert_extent:2017: inode #2214: comm syz-executor: ext4_ext_insert_extent: add newext [0, 1, 5896, unwrit:0] to extent tree.
[ 542.514742][ T9392]
[ 542.534569][ T9392] EXT4-fs warning (device sda1): ext4_es_insert_extent:931: inode #2214: comm syz-executor: ext4_es_insert_extent: add [0, 0] 5896 1 0 to extent status tree of inode 2214
[ 542.534569][ T9392]
[ 542.555218][ T9392] EXT4-fs warning (device sda1): __es_remove_extent:1512: inode #2214: comm syz-executor: __es_remove_extent: remove [0,0] range from extent status tree of inode 2214
[ 542.555218][ T9392]
[ 542.595245][ T9539] chnl_net:caif_netlink_parms(): no params data found
[ 542.644909][ T9553] loop0: detected capacity change from 0 to 1024
[ 542.654966][ T6377] Bluetooth: hci4: command tx timeout
[ 542.687545][ T9553] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 542.768033][ T9559] EXT4-fs warning (device loop0): ext4_cache_extents:532: inode #2: comm syz.0.169: ext4_cache_extents: caching extents
[ 542.768033][ T9559]
[ 542.784358][ T9559] EXT4-fs warning (device loop0): ext4_es_cache_extent:1045: inode #2: comm syz.0.169: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 542.784358][ T9559]
[ 542.804052][ T9559] EXT4-fs warning (device loop0): __es_insert_extent:852: inode #2: comm syz.0.169: __es_insert_extent: add [0, 0, 16, 0x1]
[ 542.804052][ T9559]
[ 542.806076][ T6377] Bluetooth: hci1: command tx timeout
[ 542.822186][ T9559] EXT4-fs warning (device loop0): ext4_es_cache_extent:1045: inode #2: comm syz.0.169: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 542.822186][ T9559]
[ 542.849691][ T9559] EXT4-fs warning (device loop0): ext4_es_remove_extent:1657: inode #18: comm syz.0.169: ext4_es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 542.849691][ T9559]
[ 542.874837][ T9559] EXT4-fs warning (device loop0): __es_remove_extent:1512: inode #18: comm syz.0.169: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 542.874837][ T9559]
[ 542.897678][ T9559] EXT4-fs warning (device loop0): ext4_ext_remove_space:2857: inode #18: comm syz.0.169: ext4_ext_remove_space: remove range [0, -2] from extent tree
[ 542.897678][ T9559]
[ 542.972570][ T9559] EXT4-fs warning (device loop0): ext4_cache_extents:532: inode #18: comm syz.0.169: ext4_cache_extents: caching extents
[ 542.972570][ T9559]
[ 542.981846][ T9392] EXT4-fs warning (device loop0): ext4_cache_extents:532: inode #11: comm syz-executor: ext4_cache_extents: caching extents
[ 542.981846][ T9392]
[ 542.988683][ T9559] EXT4-fs warning (device loop0): ext4_es_cache_extent:1045: inode #18: comm syz.0.169: ext4_es_cache_extent: cache extent lblk:0 len:-1 pblk:-1 status:0x8
[ 542.988683][ T9559]
[ 543.067736][ T9527] bridge0: port 1(bridge_slave_0) entered blocking state
[ 543.077528][ T9527] bridge0: port 1(bridge_slave_0) entered disabled state
[ 543.086480][ T9527] bridge_slave_0: entered allmulticast mode
[ 543.095484][ T9527] bridge_slave_0: entered promiscuous mode
[ 543.117014][ T9529] bridge0: port 1(bridge_slave_0) entered blocking state
[ 543.125335][ T9529] bridge0: port 1(bridge_slave_0) entered disabled state
[ 543.133588][ T9529] bridge_slave_0: entered allmulticast mode
[ 543.146226][ T9529] bridge_slave_0: entered promiscuous mode
[ 543.155996][ T9529] bridge0: port 2(bridge_slave_1) entered blocking state
[ 543.163760][ T9529] bridge0: port 2(bridge_slave_1) entered disabled state
[ 543.173137][ T9529] bridge_slave_1: entered allmulticast mode
[ 543.181333][ T9529] bridge_slave_1: entered promiscuous mode
[ 543.200455][ T9527] bridge0: port 2(bridge_slave_1) entered blocking state
[ 543.200776][ T6377] Bluetooth: hci2: command tx timeout
[ 543.209330][ T9527] bridge0: port 2(bridge_slave_1) entered disabled state
[ 543.223387][ T9527] bridge_slave_1: entered allmulticast mode
[ 543.231833][ T9527] bridge_slave_1: entered promiscuous mode
[ 543.259395][ T6885] netdevsim netdevsim9 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 543.334692][ T9529] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 543.357699][ T6885] netdevsim netdevsim9 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 543.395398][ T9529] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 543.426473][ T9527] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 543.440178][ T9527] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 543.453305][ T9539] bridge0: port 1(bridge_slave_0) entered blocking state
[ 543.461696][ T9539] bridge0: port 1(bridge_slave_0) entered disabled state
[ 543.469251][ T9539] bridge_slave_0: entered allmulticast mode
[ 543.477222][ T9539] bridge_slave_0: entered promiscuous mode
[ 543.488667][ T9539] bridge0: port 2(bridge_slave_1) entered blocking state
[ 543.497243][ T9559] EXT4-fs error (device loop0): mb_free_blocks:2059: group 0,
[ 543.497254][ T9539] bridge0: port 2(bridge_slave_1) entered disabled state
[ 543.497474][ T9539] bridge_slave_1: entered allmulticast mode
[ 543.506368][ T9559] inode 18:
[ 543.516920][ T9539] bridge_slave_1: entered promiscuous mode
[ 543.521775][ T9559] block 177:freeing already freed block (bit 11); block bitmap corrupt.
[ 543.548579][ T9559] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[ 543.574615][ T9529] team0: Port device team_slave_0 added
2026/02/10 20:52:57 executed programs: 172
[ 543.615711][ T9529] team0: Port device team_slave_1 added
[ 543.628580][ T9565] CPU: 1 UID: 0 PID: 9565 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 543.628604][ T9565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 543.628613][ T9565] Call Trace:
[ 543.628619][ T9565]
[ 543.628626][ T9565] dump_stack_lvl+0xe8/0x150
[ 543.628647][ T9565] ext4_cache_extents+0x31a/0x340
[ 543.628665][ T9565] ? ext4_find_extent+0x2e3/0xa20
[ 543.628685][ T9565] ext4_find_extent+0x3a9/0xa20
[ 543.628708][ T9565] ext4_ext_map_blocks+0x283/0x5760
[ 543.628735][ T9565] ? __lock_acquire+0x6b5/0x2cf0
[ 543.628764][ T9565] ? look_up_lock_class+0x57/0x110
[ 543.628782][ T9565] ? register_lock_class+0x31/0x2e0
[ 543.628803][ T9565] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 543.628823][ T9565] ? __lock_acquire+0x6b5/0x2cf0
[ 543.628861][ T9565] ext4_map_query_blocks+0x13b/0xa00
[ 543.628880][ T9565] ? ext4_map_blocks+0x42c/0x11d0
[ 543.628904][ T9565] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 543.628943][ T9565] ? down_read+0x272/0x2e0
[ 543.628959][ T9565] ? ext4_map_blocks+0x259/0x11d0
[ 543.628980][ T9565] ext4_map_blocks+0x444/0x11d0
[ 543.629010][ T9565] ? __pfx_ext4_map_blocks+0x10/0x10
[ 543.629043][ T9565] ext4_append+0x22e/0x560
[ 543.629066][ T9565] ? __pfx_ext4_append+0x10/0x10
[ 543.629091][ T9565] ? set_nlink+0x5f/0x170
[ 543.629107][ T9565] ext4_init_new_dir+0x11f/0x1c0
[ 543.629129][ T9565] ext4_mkdir+0x49b/0xbf0
[ 543.629159][ T9565] ? __pfx_ext4_mkdir+0x10/0x10
[ 543.629181][ T9565] ? inode_permission+0x2fd/0x5f0
[ 543.629195][ T9565] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 543.629212][ T9565] vfs_mkdir+0x753/0x870
[ 543.629237][ T9565] do_mkdirat+0x27d/0x4b0
[ 543.629260][ T9565] ? __pfx_do_mkdirat+0x10/0x10
[ 543.629276][ T9565] ? strncpy_from_user+0x150/0x2b0
[ 543.629300][ T9565] ? getname_flags+0x1e4/0x540
[ 543.629318][ T9565] __x64_sys_mkdir+0x6c/0x80
[ 543.629336][ T9565] do_syscall_64+0xe2/0xf80
[ 543.629352][ T9565] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 543.629365][ T9565] ? trace_irq_disable+0x37/0x100
[ 543.629377][ T9565] ? clear_bhb_loop+0x60/0xb0
[ 543.629395][ T9565] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 543.629408][ T9565] RIP: 0033:0x7f74a25c82d7
[ 543.629422][ T9565] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 543.629434][ T9565] RSP: 002b:00007ffcd8f13ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 543.629449][ T9565] RAX: ffffffffffffffda RBX: 00007ffcd8f13fd2 RCX: 00007f74a25c82d7
[ 543.629460][ T9565] RDX: 00000000043c0b0d RSI: 00000000000001c0 RDI: 00007ffcd8f13fc0
[ 543.629469][ T9565] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 543.629479][ T9565] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000043c0b0d
[ 543.629487][ T9565] R13: 00007ffcd8f13fd2 R14: 0000000000000004 R15: 00007f74a2655dc0
[ 543.629513][ T9565]
[ 543.629582][ T9565] CPU: 1 UID: 0 PID: 9565 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 543.629597][ T9565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 543.629606][ T9565] Call Trace:
[ 543.629612][ T9565]
[ 543.629618][ T9565] dump_stack_lvl+0xe8/0x150
[ 543.629635][ T9565] ext4_cache_extents+0x31a/0x340
[ 543.629651][ T9565] ? ext4_find_extent+0x2e3/0xa20
[ 543.629671][ T9565] ext4_find_extent+0x3a9/0xa20
[ 543.629694][ T9565] ext4_ext_map_blocks+0x283/0x5760
[ 543.629721][ T9565] ? rcu_is_watching+0x15/0xb0
[ 543.629742][ T9565] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 543.629761][ T9565] ? __lock_acquire+0x6b5/0x2cf0
[ 543.629785][ T9565] ? __lock_acquire+0x6b5/0x2cf0
[ 543.629807][ T9565] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 543.629830][ T9565] ? ext4_map_blocks+0x7b5/0x11d0
[ 543.629870][ T9565] ext4_map_create_blocks+0x11d/0x540
[ 543.629897][ T9565] ext4_map_blocks+0x7cd/0x11d0
[ 543.629982][ T9565] ? __pfx_ext4_map_blocks+0x10/0x10
[ 543.630017][ T9565] ext4_getblk+0x1ca/0x780
[ 543.630041][ T9565] ? __pfx_ext4_getblk+0x10/0x10
[ 543.630074][ T9565] ext4_bread+0x2a/0x180
[ 543.630094][ T9565] ext4_append+0x2ba/0x560
[ 543.630119][ T9565] ? __pfx_ext4_append+0x10/0x10
[ 543.630144][ T9565] ? set_nlink+0x5f/0x170
[ 543.630160][ T9565] ext4_init_new_dir+0x11f/0x1c0
[ 543.630182][ T9565] ext4_mkdir+0x49b/0xbf0
[ 543.630212][ T9565] ? __pfx_ext4_mkdir+0x10/0x10
[ 543.630234][ T9565] ? inode_permission+0x2fd/0x5f0
[ 543.630248][ T9565] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 543.630265][ T9565] vfs_mkdir+0x753/0x870
[ 543.630291][ T9565] do_mkdirat+0x27d/0x4b0
[ 543.630314][ T9565] ? __pfx_do_mkdirat+0x10/0x10
[ 543.630330][ T9565] ? strncpy_from_user+0x150/0x2b0
[ 543.630354][ T9565] ? getname_flags+0x1e4/0x540
[ 543.630372][ T9565] __x64_sys_mkdir+0x6c/0x80
[ 543.630391][ T9565] do_syscall_64+0xe2/0xf80
[ 543.630408][ T9565] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 543.630420][ T9565] ? trace_irq_disable+0x37/0x100
[ 543.630433][ T9565] ? clear_bhb_loop+0x60/0xb0
[ 543.630450][ T9565] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 543.630463][ T9565] RIP: 0033:0x7f74a25c82d7
[ 543.630477][ T9565] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 543.630489][ T9565] RSP: 002b:00007ffcd8f13ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 543.630505][ T9565] RAX: ffffffffffffffda RBX: 00007ffcd8f13fd2 RCX: 00007f74a25c82d7
[ 543.630515][ T9565] RDX: 00000000043c0b0d RSI: 00000000000001c0 RDI: 00007ffcd8f13fc0
[ 543.630525][ T9565] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 543.630534][ T9565] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000043c0b0d
[ 543.630544][ T9565] R13: 00007ffcd8f13fd2 R14: 0000000000000004 R15: 00007f74a2655dc0
[ 543.630575][ T9565]
[ 544.239669][ T6885] netdevsim netdevsim9 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 544.292077][ T6376] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1
[ 544.310400][ T6376] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9
[ 544.319464][ T6376] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9
[ 544.329567][ T6376] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4
[ 544.345390][ T6376] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2
[ 544.388572][ T9539] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 544.399383][ T9529] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 544.408764][ T9529] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 544.443126][ T9529] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 544.458212][ T9527] team0: Port device team_slave_0 added
[ 544.493501][ T6376] Bluetooth: hci0: command tx timeout
[ 544.505536][ T9539] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 544.529697][ T6885] netdevsim netdevsim9 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 544.547455][ T9529] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 544.554827][ T9529] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 544.585597][ T9529] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 544.599415][ T9527] team0: Port device team_slave_1 added
[ 544.670276][ T9527] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 544.678480][ T9527] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 544.706604][ T9527] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 544.722498][ T6376] Bluetooth: hci4: command tx timeout
[ 544.762281][ T9527] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 544.769454][ T9527] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 544.804997][ T9527] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 544.839344][ T9539] team0: Port device team_slave_0 added
[ 544.863213][ T9539] team0: Port device team_slave_1 added
[ 544.947340][ T9529] hsr_slave_0: entered promiscuous mode
[ 544.955324][ T9529] hsr_slave_1: entered promiscuous mode
[ 544.962455][ T9529] debugfs: 'hsr0' already exists in 'hsr'
[ 544.968565][ T9529] Cannot create hsr debugfs directory
[ 545.090070][ T9539] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 545.099548][ T9539] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 545.134892][ T9539] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 545.198511][ T9527] hsr_slave_0: entered promiscuous mode
[ 545.205890][ T9527] hsr_slave_1: entered promiscuous mode
[ 545.214872][ T9527] debugfs: 'hsr0' already exists in 'hsr'
[ 545.223928][ T9527] Cannot create hsr debugfs directory
[ 545.237512][ T9539] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 545.247098][ T9539] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 545.278543][ T9539] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 545.300212][ T6376] Bluetooth: hci2: command tx timeout
[ 545.567764][ T9505] netdevsim netdevsim4 netdevsim0: renamed from eth0
[ 545.614057][ T9539] hsr_slave_0: entered promiscuous mode
[ 545.622454][ T9539] hsr_slave_1: entered promiscuous mode
[ 545.631524][ T9539] debugfs: 'hsr0' already exists in 'hsr'
[ 545.637643][ T9539] Cannot create hsr debugfs directory
[ 545.644789][ T9505] netdevsim netdevsim4 netdevsim1: renamed from eth1
[ 545.691522][ T6885] netdevsim netdevsim6 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 545.720043][ T9505] netdevsim netdevsim4 netdevsim2: renamed from eth2
[ 545.798384][ T9505] netdevsim netdevsim4 netdevsim3: renamed from eth3
[ 545.893305][ T6885] netdevsim netdevsim6 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 546.064297][ T6885] netdevsim netdevsim6 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 546.125403][ T9566] chnl_net:caif_netlink_parms(): no params data found
[ 546.267433][ T6885] netdevsim netdevsim6 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 546.401260][ T6376] Bluetooth: hci3: command tx timeout
[ 546.545708][ T9566] bridge0: port 1(bridge_slave_0) entered blocking state
[ 546.555554][ T9566] bridge0: port 1(bridge_slave_0) entered disabled state
[ 546.565704][ T9566] bridge_slave_0: entered allmulticast mode
[ 546.572430][ T6376] Bluetooth: hci0: command tx timeout
[ 546.573963][ T9566] bridge_slave_0: entered promiscuous mode
[ 546.586447][ T9566] bridge0: port 2(bridge_slave_1) entered blocking state
[ 546.594509][ T9566] bridge0: port 2(bridge_slave_1) entered disabled state
[ 546.604727][ T9566] bridge_slave_1: entered allmulticast mode
[ 546.612382][ T9566] bridge_slave_1: entered promiscuous mode
[ 546.715944][ T9566] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 546.732515][ T9566] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 546.807821][ T6885] netdevsim netdevsim8 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 546.812002][ T6376] Bluetooth: hci4: command tx timeout
[ 546.856323][ T9566] team0: Port device team_slave_0 added
[ 546.873274][ T9566] team0: Port device team_slave_1 added
[ 546.898665][ T6885] netdevsim netdevsim8 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 546.947604][ T9566] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 546.955973][ T9566] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 546.988201][ T9566] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 547.007762][ T9566] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 547.015642][ T9566] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 547.045139][ T9566] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 547.066279][ T9505] 8021q: adding VLAN 0 to HW filter on device bond0
[ 547.109416][ T6885] netdevsim netdevsim8 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 547.216398][ T6885] netdevsim netdevsim8 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 547.243956][ T9566] hsr_slave_0: entered promiscuous mode
[ 547.253098][ T9566] hsr_slave_1: entered promiscuous mode
[ 547.264815][ T9566] debugfs: 'hsr0' already exists in 'hsr'
[ 547.274178][ T9566] Cannot create hsr debugfs directory
[ 547.375665][ T9505] 8021q: adding VLAN 0 to HW filter on device team0
[ 547.508393][ T36] bridge0: port 1(bridge_slave_0) entered blocking state
[ 547.516024][ T36] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 547.568765][ T36] bridge0: port 2(bridge_slave_1) entered blocking state
[ 547.576357][ T36] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 547.692106][ T6885] bridge_slave_1: left allmulticast mode
[ 547.698915][ T6885] bridge_slave_1: left promiscuous mode
[ 547.705882][ T6885] bridge0: port 2(bridge_slave_1) entered disabled state
[ 547.717736][ T6885] bridge_slave_0: left allmulticast mode
[ 547.724533][ T6885] bridge_slave_0: left promiscuous mode
[ 547.731474][ T6885] bridge0: port 1(bridge_slave_0) entered disabled state
[ 547.744145][ T6885] bridge_slave_1: left allmulticast mode
[ 547.750269][ T6885] bridge_slave_1: left promiscuous mode
[ 547.757001][ T6885] bridge0: port 2(bridge_slave_1) entered disabled state
[ 547.768681][ T6885] bridge_slave_0: left allmulticast mode
[ 547.776500][ T6885] bridge_slave_0: left promiscuous mode
[ 547.785274][ T6885] bridge0: port 1(bridge_slave_0) entered disabled state
[ 547.798823][ T6885] bridge_slave_1: left allmulticast mode
[ 547.805878][ T6885] bridge_slave_1: left promiscuous mode
[ 547.812364][ T6885] bridge0: port 2(bridge_slave_1) entered disabled state
[ 547.823979][ T6885] bridge_slave_0: left allmulticast mode
[ 547.832652][ T6885] bridge_slave_0: left promiscuous mode
[ 547.838874][ T6885] bridge0: port 1(bridge_slave_0) entered disabled state
[ 548.278135][ T6885] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 548.290302][ T6885] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 548.303693][ T6885] bond0 (unregistering): Released all slaves
[ 548.480858][ T6376] Bluetooth: hci3: command tx timeout
[ 548.528111][ T6885] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 548.539243][ T6885] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 548.553776][ T6885] bond0 (unregistering): Released all slaves
[ 548.644771][ T6376] Bluetooth: hci0: command tx timeout
[ 548.808632][ T6885] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 548.819781][ T6885] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 548.830777][ T6885] bond0 (unregistering): Released all slaves
[ 549.379928][ T9529] netdevsim netdevsim1 netdevsim0: renamed from eth0
[ 549.427146][ T9529] netdevsim netdevsim1 netdevsim1: renamed from eth1
[ 549.459873][ T9529] netdevsim netdevsim1 netdevsim2: renamed from eth2
[ 549.526745][ T9529] netdevsim netdevsim1 netdevsim3: renamed from eth3
[ 549.737168][ T9527] netdevsim netdevsim2 netdevsim0: renamed from eth0
[ 549.759119][ T9527] netdevsim netdevsim2 netdevsim1: renamed from eth1
[ 549.812713][ T9527] netdevsim netdevsim2 netdevsim2: renamed from eth2
[ 549.859369][ T9505] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 549.867994][ T9527] netdevsim netdevsim2 netdevsim3: renamed from eth3
[ 549.920469][ T6885] hsr_slave_0: left promiscuous mode
[ 549.939505][ T6885] hsr_slave_1: left promiscuous mode
[ 549.946926][ T6885] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 549.956068][ T6885] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 549.970363][ T6885] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 549.979114][ T6885] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 550.002102][ T6885] hsr_slave_0: left promiscuous mode
[ 550.009165][ T6885] hsr_slave_1: left promiscuous mode
[ 550.016670][ T6885] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 550.027861][ T6885] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 550.037300][ T6885] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 550.046924][ T6885] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 550.059963][ T6885] hsr_slave_0: left promiscuous mode
[ 550.066833][ T6885] hsr_slave_1: left promiscuous mode
[ 550.075487][ T6885] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 550.083756][ T6885] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 550.096411][ T6885] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 550.108445][ T6885] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 550.165132][ T6885] veth1_macvtap: left promiscuous mode
[ 550.175769][ T6885] veth0_macvtap: left promiscuous mode
[ 550.183129][ T6885] veth1_vlan: left promiscuous mode
[ 550.189946][ T6885] veth0_vlan: left promiscuous mode
[ 550.198155][ T6885] veth1_macvtap: left promiscuous mode
[ 550.204683][ T6885] veth0_macvtap: left promiscuous mode
[ 550.211987][ T6885] veth1_vlan: left promiscuous mode
[ 550.218264][ T6885] veth0_vlan: left promiscuous mode
[ 550.225816][ T6885] veth1_macvtap: left promiscuous mode
[ 550.233449][ T6885] veth0_macvtap: left promiscuous mode
[ 550.240327][ T6885] veth1_vlan: left promiscuous mode
[ 550.246299][ T6885] veth0_vlan: left promiscuous mode
[ 550.560750][ T6376] Bluetooth: hci3: command tx timeout
[ 550.839329][ T6885] team0 (unregistering): Port device team_slave_1 removed
[ 550.882313][ T6885] team0 (unregistering): Port device team_slave_0 removed
[ 551.627521][ T6885] team0 (unregistering): Port device team_slave_1 removed
[ 551.667457][ T6885] team0 (unregistering): Port device team_slave_0 removed
[ 552.397871][ T6885] team0 (unregistering): Port device team_slave_1 removed
[ 552.440247][ T6885] team0 (unregistering): Port device team_slave_0 removed
[ 552.646123][ T6376] Bluetooth: hci3: command tx timeout
[ 553.046662][ T9529] 8021q: adding VLAN 0 to HW filter on device bond0
[ 553.123259][ T9529] 8021q: adding VLAN 0 to HW filter on device team0
[ 553.214207][ T3548] bridge0: port 1(bridge_slave_0) entered blocking state
[ 553.223116][ T3548] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 553.294517][ T3548] bridge0: port 2(bridge_slave_1) entered blocking state
[ 553.302279][ T3548] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 553.483381][ T9527] 8021q: adding VLAN 0 to HW filter on device bond0
[ 553.591071][ T9529] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[ 553.629911][ T9566] netdevsim netdevsim5 netdevsim0: renamed from eth0
[ 553.659499][ T9527] 8021q: adding VLAN 0 to HW filter on device team0
[ 553.684750][ T9566] netdevsim netdevsim5 netdevsim1: renamed from eth1
[ 553.706815][ T9505] veth0_vlan: entered promiscuous mode
[ 553.716746][ T9566] netdevsim netdevsim5 netdevsim2: renamed from eth2
[ 553.731864][ T9566] netdevsim netdevsim5 netdevsim3: renamed from eth3
[ 553.782599][ T1152] bridge0: port 1(bridge_slave_0) entered blocking state
[ 553.790841][ T1152] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 553.888528][ T1152] bridge0: port 2(bridge_slave_1) entered blocking state
[ 553.896062][ T1152] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 553.983910][ T9505] veth1_vlan: entered promiscuous mode
[ 554.123770][ T9539] netdevsim netdevsim3 netdevsim0: renamed from eth0
[ 554.161877][ T9539] netdevsim netdevsim3 netdevsim1: renamed from eth1
[ 554.184877][ T9539] netdevsim netdevsim3 netdevsim2: renamed from eth2
[ 554.209177][ T9529] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 554.226378][ T9539] netdevsim netdevsim3 netdevsim3: renamed from eth3
[ 554.254267][ T9505] veth0_macvtap: entered promiscuous mode
[ 554.316622][ T9505] veth1_macvtap: entered promiscuous mode
[ 554.419209][ T9505] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 554.531354][ T6885] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 554.555520][ T9529] veth0_vlan: entered promiscuous mode
[ 554.566036][ T9505] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 554.667799][ T6885] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 554.705753][ T12] netdevsim netdevsim4 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 554.716600][ T12] netdevsim netdevsim4 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 554.728779][ T9529] veth1_vlan: entered promiscuous mode
[ 554.742174][ T12] netdevsim netdevsim4 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 554.759244][ T9566] 8021q: adding VLAN 0 to HW filter on device bond0
[ 554.775816][ T12] netdevsim netdevsim4 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 554.812222][ T6885] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 554.887040][ T9527] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 554.919686][ T6885] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 554.945641][ T9566] 8021q: adding VLAN 0 to HW filter on device team0
[ 555.023187][ T9147] bridge0: port 1(bridge_slave_0) entered blocking state
[ 555.031071][ T9147] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 555.078811][ T9529] veth0_macvtap: entered promiscuous mode
[ 555.098897][ T9147] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 555.123671][ T9147] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 555.136038][ T3498] bridge0: port 2(bridge_slave_1) entered blocking state
[ 555.144073][ T3498] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 555.191688][ T9529] veth1_macvtap: entered promiscuous mode
[ 555.285784][ T6885] bridge_slave_1: left allmulticast mode
[ 555.292997][ T6885] bridge_slave_1: left promiscuous mode
[ 555.299302][ T6885] bridge0: port 2(bridge_slave_1) entered disabled state
[ 555.310053][ T6885] bridge_slave_0: left allmulticast mode
[ 555.321042][ T6885] bridge_slave_0: left promiscuous mode
[ 555.328283][ T6885] bridge0: port 1(bridge_slave_0) entered disabled state
[ 555.698795][ T6885] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 555.718262][ T6885] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 555.729195][ T6885] bond0 (unregistering): Released all slaves
[ 555.743119][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 555.753102][ T12] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 555.762594][ T9529] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 555.780515][ T9539] 8021q: adding VLAN 0 to HW filter on device bond0
[ 555.798709][ T9529] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 555.811034][ T9505] EXT4-fs warning: 12 callbacks suppressed
[ 555.811052][ T9505] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2216: comm syz-executor: ext4_cache_extents: caching extents
[ 555.811052][ T9505]
[ 555.840451][ T9505] CPU: 0 UID: 0 PID: 9505 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 555.840475][ T9505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 555.840484][ T9505] Call Trace:
[ 555.840491][ T9505]
[ 555.840499][ T9505] dump_stack_lvl+0xe8/0x150
[ 555.840524][ T9505] ext4_cache_extents+0x31a/0x340
[ 555.840544][ T9505] ? ext4_find_extent+0x2e3/0xa20
[ 555.840570][ T9505] ext4_find_extent+0x3a9/0xa20
[ 555.840593][ T9505] ext4_ext_map_blocks+0x283/0x5760
[ 555.840623][ T9505] ? __lock_acquire+0x6b5/0x2cf0
[ 555.840654][ T9505] ? look_up_lock_class+0x57/0x110
[ 555.840675][ T9505] ? register_lock_class+0x31/0x2e0
[ 555.840705][ T9505] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 555.840728][ T9505] ? __lock_acquire+0x6b5/0x2cf0
[ 555.840768][ T9505] ext4_map_query_blocks+0x13b/0xa00
[ 555.840789][ T9505] ? ext4_map_blocks+0x42c/0x11d0
[ 555.840817][ T9505] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 555.840845][ T9505] ? down_read+0x272/0x2e0
[ 555.840863][ T9505] ? ext4_map_blocks+0x259/0x11d0
[ 555.840886][ T9505] ext4_map_blocks+0x444/0x11d0
[ 555.840920][ T9505] ? __pfx_ext4_map_blocks+0x10/0x10
[ 555.840958][ T9505] ext4_append+0x22e/0x560
[ 555.840986][ T9505] ? __pfx_ext4_append+0x10/0x10
[ 555.841013][ T9505] ? set_nlink+0x5f/0x170
[ 555.841031][ T9505] ext4_init_new_dir+0x11f/0x1c0
[ 555.841056][ T9505] ext4_mkdir+0x49b/0xbf0
[ 555.841091][ T9505] ? __pfx_ext4_mkdir+0x10/0x10
[ 555.841115][ T9505] ? inode_permission+0x2fd/0x5f0
[ 555.841131][ T9505] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 555.841150][ T9505] vfs_mkdir+0x753/0x870
[ 555.841179][ T9505] do_mkdirat+0x27d/0x4b0
[ 555.841205][ T9505] ? __pfx_do_mkdirat+0x10/0x10
[ 555.841241][ T9505] ? getname_flags+0x1e4/0x540
[ 555.841262][ T9505] __x64_sys_mkdirat+0x87/0xa0
[ 555.841284][ T9505] do_syscall_64+0xe2/0xf80
[ 555.841302][ T9505] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 555.841319][ T9505] ? clear_bhb_loop+0x60/0xb0
[ 555.841338][ T9505] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 555.841354][ T9505] RIP: 0033:0x7fb8bf599d97
[ 555.841370][ T9505] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 555.841383][ T9505] RSP: 002b:00007ffcb2881218 EFLAGS: 00000202 ORIG_RAX: 0000000000000102
[ 555.841401][ T9505] RAX: ffffffffffffffda RBX: 00007fb8bf605adc RCX: 00007fb8bf599d97
[ 555.841413][ T9505] RDX: 00000000000001ff RSI: 00007fb8bf605adc RDI: 00000000ffffff9c
[ 555.841424][ T9505] RBP: 00007ffcb28812a0 R08: 0000000000000000 R09: 0000000000000000
[ 555.841435][ T9505] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb28812a8
[ 555.841445][ T9505] R13: 0000000000000002 R14: 00007ffcb2881488 R15: 0000000000000000
[ 555.841473][ T9505]
[ 556.164641][ T9539] 8021q: adding VLAN 0 to HW filter on device team0
[ 556.179278][ T9505] EXT4-fs warning (device sda1): ext4_es_cache_extent:1045: inode #2216: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:-1 pblk:-1 status:0x8
[ 556.179278][ T9505]
[ 556.204862][ T9505] EXT4-fs warning (device sda1): __es_insert_extent:852: inode #2216: comm syz-executor: __es_insert_extent: add [0, -2, 576460752303423487, 0x8]
[ 556.204862][ T9505]
[ 556.210346][ T12] bridge0: port 1(bridge_slave_0) entered blocking state
[ 556.226337][ T9505] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2216: comm syz-executor: ext4_cache_extents: caching extents
[ 556.226337][ T9505]
[ 556.235360][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 556.255468][ T9505] CPU: 0 UID: 0 PID: 9505 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 556.255492][ T9505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 556.255503][ T9505] Call Trace:
[ 556.255510][ T9505]
[ 556.255518][ T9505] dump_stack_lvl+0xe8/0x150
[ 556.255542][ T9505] ext4_cache_extents+0x31a/0x340
[ 556.255562][ T9505] ? ext4_find_extent+0x2e3/0xa20
[ 556.255716][ T9505] ext4_find_extent+0x3a9/0xa20
[ 556.255764][ T9505] ext4_ext_map_blocks+0x283/0x5760
[ 556.255794][ T9505] ? rcu_is_watching+0x15/0xb0
[ 556.255818][ T9505] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 556.255839][ T9505] ? __lock_acquire+0x6b5/0x2cf0
[ 556.255867][ T9505] ? __lock_acquire+0x6b5/0x2cf0
[ 556.255892][ T9505] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 556.255916][ T9505] ? ext4_map_blocks+0x7b5/0x11d0
[ 556.255959][ T9505] ext4_map_create_blocks+0x11d/0x540
[ 556.255990][ T9505] ext4_map_blocks+0x7cd/0x11d0
[ 556.256025][ T9505] ? __pfx_ext4_map_blocks+0x10/0x10
[ 556.256081][ T9505] ext4_getblk+0x1ca/0x780
[ 556.256112][ T9505] ? __pfx_ext4_getblk+0x10/0x10
[ 556.256157][ T9505] ext4_bread+0x2a/0x180
[ 556.256182][ T9505] ext4_append+0x2ba/0x560
[ 556.256209][ T9505] ? __pfx_ext4_append+0x10/0x10
[ 556.256237][ T9505] ? set_nlink+0x5f/0x170
[ 556.256256][ T9505] ext4_init_new_dir+0x11f/0x1c0
[ 556.256281][ T9505] ext4_mkdir+0x49b/0xbf0
[ 556.256315][ T9505] ? __pfx_ext4_mkdir+0x10/0x10
[ 556.256346][ T9505] ? inode_permission+0x2fd/0x5f0
[ 556.256364][ T9505] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 556.256384][ T9505] vfs_mkdir+0x753/0x870
[ 556.256412][ T9505] do_mkdirat+0x27d/0x4b0
[ 556.256439][ T9505] ? __pfx_do_mkdirat+0x10/0x10
[ 556.256464][ T9505] ? getname_flags+0x1e4/0x540
[ 556.256485][ T9505] __x64_sys_mkdirat+0x87/0xa0
[ 556.256512][ T9505] do_syscall_64+0xe2/0xf80
[ 556.256533][ T9505] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 556.256549][ T9505] ? clear_bhb_loop+0x60/0xb0
[ 556.256568][ T9505] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 556.256585][ T9505] RIP: 0033:0x7fb8bf599d97
[ 556.256605][ T9505] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 556.256620][ T9505] RSP: 002b:00007ffcb2881218 EFLAGS: 00000202 ORIG_RAX: 0000000000000102
[ 556.256758][ T9505] RAX: ffffffffffffffda RBX: 00007fb8bf605adc RCX: 00007fb8bf599d97
[ 556.256776][ T9505] RDX: 00000000000001ff RSI: 00007fb8bf605adc RDI: 00000000ffffff9c
[ 556.256804][ T9505] RBP: 00007ffcb28812a0 R08: 0000000000000000 R09: 0000000000000000
[ 556.256814][ T9505] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcb28812a8
[ 556.256824][ T9505] R13: 0000000000000002 R14: 00007ffcb2881488 R15: 0000000000000000
[ 556.256856][ T9505]
[ 556.256893][ T9505] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6274: inode #2216: comm syz-executor: ext4_mb_new_blocks: Allocation requested for: [0, 0]
[ 556.256893][ T9505]
[ 556.577381][ T9505] EXT4-fs warning (device sda1): ext4_mb_regular_allocator:3120: inode #2216: comm syz-executor: ext4_mb_regular_allocator: Best len 1, origin len 1, ac_status 2, ac_flags 0x0, cr 1 ret 0
[ 556.577381][ T9505]
[ 556.601854][ T9505] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6363: inode #2216: comm syz-executor: ext4_mb_new_blocks: Allocation found: [0, 0], pblk:5898 len:1
[ 556.601854][ T9505]
[ 556.621009][ T9505] EXT4-fs warning (device sda1): ext4_ext_insert_extent:2017: inode #2216: comm syz-executor: ext4_ext_insert_extent: add newext [0, 1, 5898, unwrit:0] to extent tree.
[ 556.621009][ T9505]
[ 556.642161][ T9505] EXT4-fs warning (device sda1): ext4_es_insert_extent:931: inode #2216: comm syz-executor: ext4_es_insert_extent: add [0, 0] 5898 1 0 to extent status tree of inode 2216
[ 556.642161][ T9505]
[ 556.652126][ T9527] veth0_vlan: entered promiscuous mode
[ 556.669344][ T9505] EXT4-fs warning (device sda1): __es_remove_extent:1512: inode #2216: comm syz-executor: __es_remove_extent: remove [0,0] range from extent status tree of inode 2216
[ 556.669344][ T9505]
[ 556.704353][ T9147] bridge0: port 2(bridge_slave_1) entered blocking state
2026/02/10 20:53:11 executed programs: 173
[ 556.711818][ T9147] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 556.730105][ T37] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 556.741251][ T37] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 556.775376][ T37] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 556.829304][ T9791] loop4: detected capacity change from 0 to 1024
[ 556.888643][ T37] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 556.904343][ T9791] EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 556.951832][ T9527] veth1_vlan: entered promiscuous mode
[ 556.976579][ T9797] EXT4-fs warning (device loop4): ext4_cache_extents:532: inode #2: comm syz.4.177: ext4_cache_extents: caching extents
[ 556.976579][ T9797]
[ 556.998212][ T9797] EXT4-fs warning (device loop4): ext4_es_cache_extent:1045: inode #2: comm syz.4.177: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 556.998212][ T9797]
[ 557.020298][ T9797] EXT4-fs warning (device loop4): __es_insert_extent:852: inode #2: comm syz.4.177: __es_insert_extent: add [0, 0, 16, 0x1]
[ 557.020298][ T9797]
[ 557.044557][ T9797] EXT4-fs warning (device loop4): ext4_es_cache_extent:1045: inode #2: comm syz.4.177: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 557.044557][ T9797]
[ 557.104088][ T9797] EXT4-fs warning (device loop4): ext4_es_remove_extent:1657: inode #18: comm syz.4.177: ext4_es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 557.104088][ T9797]
[ 557.127358][ T6885] hsr_slave_0: left promiscuous mode
[ 557.131596][ T9797] EXT4-fs warning (device loop4): __es_remove_extent:1512: inode #18: comm syz.4.177: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 557.131596][ T9797]
[ 557.155812][ T6885] hsr_slave_1: left promiscuous mode
[ 557.163669][ T9797] EXT4-fs warning (device loop4): ext4_ext_remove_space:2857: inode #18: comm syz.4.177: ext4_ext_remove_space: remove range [0, -2] from extent tree
[ 557.163669][ T9797]
[ 557.174012][ T6885] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 557.198439][ T9505] EXT4-fs warning (device loop4): ext4_cache_extents:532: inode #11: comm syz-executor: ext4_cache_extents: caching extents
[ 557.198439][ T9505]
[ 557.210696][ T6885] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 557.220904][ T9505] 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
[ 557.220904][ T9505]
[ 557.226001][ T9797] EXT4-fs warning (device loop4): ext4_cache_extents:532: inode #18: comm syz.4.177: ext4_cache_extents: caching extents
[ 557.226001][ T9797]
[ 557.259555][ T6885] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 557.267211][ T6885] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 557.289683][ T6885] veth1_macvtap: left promiscuous mode
[ 557.295691][ T6885] veth0_macvtap: left promiscuous mode
[ 557.302139][ T6885] veth1_vlan: left promiscuous mode
[ 557.307994][ T6885] veth0_vlan: left promiscuous mode
[ 557.770306][ T6885] team0 (unregistering): Port device team_slave_1 removed
[ 557.810550][ T6885] team0 (unregistering): Port device team_slave_0 removed
[ 558.297860][ T9527] veth0_macvtap: entered promiscuous mode
[ 558.376829][ T8663] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 558.399450][ T9527] veth1_macvtap: entered promiscuous mode
[ 558.415708][ T9797] EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[ 558.428918][ T8663] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 558.546646][ T9527] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 558.560567][ T9806] CPU: 0 UID: 0 PID: 9806 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 558.560592][ T9806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 558.560601][ T9806] Call Trace:
[ 558.560608][ T9806]
[ 558.560615][ T9806] dump_stack_lvl+0xe8/0x150
[ 558.560638][ T9806] ext4_cache_extents+0x31a/0x340
[ 558.560656][ T9806] ? ext4_find_extent+0x2e3/0xa20
[ 558.560683][ T9806] ext4_find_extent+0x3a9/0xa20
[ 558.560707][ T9806] ext4_ext_map_blocks+0x283/0x5760
[ 558.560737][ T9806] ? __lock_acquire+0x6b5/0x2cf0
[ 558.560766][ T9806] ? look_up_lock_class+0x57/0x110
[ 558.560785][ T9806] ? register_lock_class+0x31/0x2e0
[ 558.560803][ T9806] ? look_up_lock_class+0x57/0x110
[ 558.560820][ T9806] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 558.560841][ T9806] ? __lock_acquire+0x6b5/0x2cf0
[ 558.560880][ T9806] ext4_map_query_blocks+0x13b/0xa00
[ 558.560900][ T9806] ? ext4_map_blocks+0x42c/0x11d0
[ 558.560925][ T9806] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 558.560969][ T9806] ? down_read+0x272/0x2e0
[ 558.560986][ T9806] ? ext4_map_blocks+0x259/0x11d0
[ 558.561007][ T9806] ext4_map_blocks+0x444/0x11d0
[ 558.561038][ T9806] ? __pfx_ext4_map_blocks+0x10/0x10
[ 558.561073][ T9806] ext4_append+0x22e/0x560
[ 558.561107][ T9806] ? __pfx_ext4_append+0x10/0x10
[ 558.561133][ T9806] ? set_nlink+0x5f/0x170
[ 558.561149][ T9806] ext4_init_new_dir+0x11f/0x1c0
[ 558.561172][ T9806] ext4_mkdir+0x49b/0xbf0
[ 558.561203][ T9806] ? __pfx_ext4_mkdir+0x10/0x10
[ 558.561226][ T9806] ? inode_permission+0x2fd/0x5f0
[ 558.561241][ T9806] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 558.561259][ T9806] vfs_mkdir+0x753/0x870
[ 558.561285][ T9806] do_mkdirat+0x27d/0x4b0
[ 558.561309][ T9806] ? __pfx_do_mkdirat+0x10/0x10
[ 558.561325][ T9806] ? strncpy_from_user+0x150/0x2b0
[ 558.561351][ T9806] ? getname_flags+0x1e4/0x540
[ 558.561369][ T9806] __x64_sys_mkdir+0x6c/0x80
[ 558.561388][ T9806] do_syscall_64+0xe2/0xf80
[ 558.561406][ T9806] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 558.561419][ T9806] ? trace_irq_disable+0x37/0x100
[ 558.561432][ T9806] ? clear_bhb_loop+0x60/0xb0
[ 558.561450][ T9806] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 558.561463][ T9806] RIP: 0033:0x7f49b13c82d7
[ 558.561478][ T9806] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 558.561490][ T9806] RSP: 002b:00007ffdc3b4d258 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 558.561506][ T9806] RAX: ffffffffffffffda RBX: 00007ffdc3b4d382 RCX: 00007f49b13c82d7
[ 558.561517][ T9806] RDX: 000000000148da1a RSI: 00000000000001c0 RDI: 00007ffdc3b4d370
[ 558.561526][ T9806] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 558.561535][ T9806] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000148da1a
[ 558.561544][ T9806] R13: 00007ffdc3b4d382 R14: 0000000000000004 R15: 00007f49b1455dc0
[ 558.561571][ T9806]
[ 558.899338][ T9806] CPU: 1 UID: 0 PID: 9806 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 558.899363][ T9806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 558.899371][ T9806] Call Trace:
[ 558.899379][ T9806]
[ 558.899386][ T9806] dump_stack_lvl+0xe8/0x150
[ 558.899469][ T9806] ext4_cache_extents+0x31a/0x340
[ 558.899501][ T9806] ? ext4_find_extent+0x2e3/0xa20
[ 558.899525][ T9806] ext4_find_extent+0x3a9/0xa20
[ 558.899551][ T9806] ext4_ext_map_blocks+0x283/0x5760
[ 558.899581][ T9806] ? rcu_is_watching+0x15/0xb0
[ 558.899606][ T9806] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 558.899629][ T9806] ? __lock_acquire+0x6b5/0x2cf0
[ 558.899659][ T9806] ? __lock_acquire+0x6b5/0x2cf0
[ 558.899685][ T9806] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 558.899712][ T9806] ? ext4_map_blocks+0x7b5/0x11d0
[ 558.899759][ T9806] ext4_map_create_blocks+0x11d/0x540
[ 558.899790][ T9806] ext4_map_blocks+0x7cd/0x11d0
[ 558.899825][ T9806] ? __pfx_ext4_map_blocks+0x10/0x10
[ 558.899864][ T9806] ext4_getblk+0x1ca/0x780
[ 558.899893][ T9806] ? __pfx_ext4_getblk+0x10/0x10
[ 558.899928][ T9806] ext4_bread+0x2a/0x180
[ 558.899953][ T9806] ext4_append+0x2ba/0x560
[ 558.899980][ T9806] ? __pfx_ext4_append+0x10/0x10
[ 558.900008][ T9806] ? set_nlink+0x5f/0x170
[ 558.900027][ T9806] ext4_init_new_dir+0x11f/0x1c0
[ 558.900051][ T9806] ext4_mkdir+0x49b/0xbf0
[ 558.900086][ T9806] ? __pfx_ext4_mkdir+0x10/0x10
[ 558.900117][ T9806] ? inode_permission+0x2fd/0x5f0
[ 558.900239][ T9806] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 558.900261][ T9806] vfs_mkdir+0x753/0x870
[ 558.900290][ T9806] do_mkdirat+0x27d/0x4b0
[ 558.900317][ T9806] ? __pfx_do_mkdirat+0x10/0x10
[ 558.900336][ T9806] ? strncpy_from_user+0x150/0x2b0
[ 558.900364][ T9806] ? getname_flags+0x1e4/0x540
[ 558.900393][ T9806] __x64_sys_mkdir+0x6c/0x80
[ 558.900411][ T9806] do_syscall_64+0xe2/0xf80
[ 558.900429][ T9806] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 558.900441][ T9806] ? trace_irq_disable+0x37/0x100
[ 558.900455][ T9806] ? clear_bhb_loop+0x60/0xb0
[ 558.900475][ T9806] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 558.900492][ T9806] RIP: 0033:0x7f49b13c82d7
[ 558.900510][ T9806] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 558.900523][ T9806] RSP: 002b:00007ffdc3b4d258 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 558.900541][ T9806] RAX: ffffffffffffffda RBX: 00007ffdc3b4d382 RCX: 00007f49b13c82d7
[ 558.900553][ T9806] RDX: 000000000148da1a RSI: 00000000000001c0 RDI: 00007ffdc3b4d370
[ 558.900568][ T9806] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 558.900576][ T9806] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000148da1a
[ 558.900584][ T9806] R13: 00007ffdc3b4d382 R14: 0000000000000004 R15: 00007f49b1455dc0
[ 558.900614][ T9806]
[ 558.936311][ T9566] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 559.192825][ T6377] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1
[ 559.201007][ T9527] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 559.208116][ T6377] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9
[ 559.292079][ T9045] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 559.296759][ T6377] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9
[ 559.302229][ T9045] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 559.309452][ T6377] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4
[ 559.326844][ T6377] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2
[ 559.355691][ T36] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 559.418204][ T36] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 559.430518][ T9529] CPU: 0 UID: 0 PID: 9529 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 559.430544][ T9529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 559.430555][ T9529] Call Trace:
[ 559.430567][ T9529]
[ 559.430575][ T9529] dump_stack_lvl+0xe8/0x150
[ 559.430598][ T9529] ext4_cache_extents+0x31a/0x340
[ 559.430617][ T9529] ? ext4_find_extent+0x2e3/0xa20
[ 559.430639][ T9529] ext4_find_extent+0x3a9/0xa20
[ 559.430666][ T9529] ext4_ext_map_blocks+0x283/0x5760
[ 559.430699][ T9529] ? __lock_acquire+0x6b5/0x2cf0
[ 559.430736][ T9529] ? look_up_lock_class+0x57/0x110
[ 559.430758][ T9529] ? register_lock_class+0x31/0x2e0
[ 559.430782][ T9529] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 559.430805][ T9529] ? __lock_acquire+0x6b5/0x2cf0
[ 559.430849][ T9529] ext4_map_query_blocks+0x13b/0xa00
[ 559.430870][ T9529] ? ext4_map_blocks+0x42c/0x11d0
[ 559.430899][ T9529] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 559.430928][ T9529] ? down_read+0x272/0x2e0
[ 559.430946][ T9529] ? ext4_map_blocks+0x259/0x11d0
[ 559.430970][ T9529] ext4_map_blocks+0x444/0x11d0
[ 559.431004][ T9529] ? __pfx_ext4_map_blocks+0x10/0x10
[ 559.431043][ T9529] ext4_append+0x22e/0x560
[ 559.431069][ T9529] ? __pfx_ext4_append+0x10/0x10
[ 559.431096][ T9529] ? set_nlink+0x5f/0x170
[ 559.431114][ T9529] ext4_init_new_dir+0x11f/0x1c0
[ 559.431139][ T9529] ext4_mkdir+0x49b/0xbf0
[ 559.431172][ T9529] ? __pfx_ext4_mkdir+0x10/0x10
[ 559.431203][ T9529] ? inode_permission+0x2fd/0x5f0
[ 559.431219][ T9529] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 559.431239][ T9529] vfs_mkdir+0x753/0x870
[ 559.431268][ T9529] do_mkdirat+0x27d/0x4b0
[ 559.431294][ T9529] ? __pfx_do_mkdirat+0x10/0x10
[ 559.431409][ T9529] ? getname_flags+0x1e4/0x540
[ 559.431444][ T9529] __x64_sys_mkdirat+0x87/0xa0
[ 559.431467][ T9529] do_syscall_64+0xe2/0xf80
[ 559.431487][ T9529] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 559.431501][ T9529] ? trace_irq_disable+0x37/0x100
[ 559.431523][ T9529] ? clear_bhb_loop+0x60/0xb0
[ 559.431544][ T9529] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 559.431559][ T9529] RIP: 0033:0x7f247d799d97
[ 559.431576][ T9529] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 559.431591][ T9529] RSP: 002b:00007fffc4760158 EFLAGS: 00000202 ORIG_RAX: 0000000000000102
[ 559.431610][ T9529] RAX: ffffffffffffffda RBX: 00007f247d805adc RCX: 00007f247d799d97
[ 559.431621][ T9529] RDX: 00000000000001ff RSI: 00007f247d805adc RDI: 00000000ffffff9c
[ 559.431633][ T9529] RBP: 00007fffc47601e0 R08: 0000000000000000 R09: 0000000000000000
[ 559.431644][ T9529] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffc47601e8
[ 559.431654][ T9529] R13: 0000000000000002 R14: 00007fffc47603c8 R15: 0000000000000000
[ 559.431683][ T9529]
[ 559.760179][ T9529] CPU: 0 UID: 0 PID: 9529 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 559.760205][ T9529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 559.760214][ T9529] Call Trace:
[ 559.760221][ T9529]
[ 559.760229][ T9529] dump_stack_lvl+0xe8/0x150
[ 559.760253][ T9529] ext4_cache_extents+0x31a/0x340
[ 559.760273][ T9529] ? ext4_find_extent+0x2e3/0xa20
[ 559.760305][ T9529] ext4_find_extent+0x3a9/0xa20
[ 559.760330][ T9529] ext4_ext_map_blocks+0x283/0x5760
[ 559.760360][ T9529] ? rcu_is_watching+0x15/0xb0
[ 559.760385][ T9529] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 559.760405][ T9529] ? __lock_acquire+0x6b5/0x2cf0
[ 559.760432][ T9529] ? __lock_acquire+0x6b5/0x2cf0
[ 559.760457][ T9529] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 559.760481][ T9529] ? ext4_map_blocks+0x7b5/0x11d0
[ 559.760524][ T9529] ext4_map_create_blocks+0x11d/0x540
[ 559.760555][ T9529] ext4_map_blocks+0x7cd/0x11d0
[ 559.760584][ T9529] ? __pfx_ext4_map_blocks+0x10/0x10
[ 559.760621][ T9529] ext4_getblk+0x1ca/0x780
[ 559.760648][ T9529] ? __pfx_ext4_getblk+0x10/0x10
[ 559.760685][ T9529] ext4_bread+0x2a/0x180
[ 559.760708][ T9529] ext4_append+0x2ba/0x560
[ 559.760735][ T9529] ? __pfx_ext4_append+0x10/0x10
[ 559.760763][ T9529] ? set_nlink+0x5f/0x170
[ 559.760781][ T9529] ext4_init_new_dir+0x11f/0x1c0
[ 559.760803][ T9529] ext4_mkdir+0x49b/0xbf0
[ 559.760852][ T9529] ? __pfx_ext4_mkdir+0x10/0x10
[ 559.760876][ T9529] ? inode_permission+0x2fd/0x5f0
[ 559.760893][ T9529] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 559.760912][ T9529] vfs_mkdir+0x753/0x870
[ 559.760939][ T9529] do_mkdirat+0x27d/0x4b0
[ 559.760964][ T9529] ? __pfx_do_mkdirat+0x10/0x10
[ 559.760987][ T9529] ? getname_flags+0x1e4/0x540
[ 559.761008][ T9529] __x64_sys_mkdirat+0x87/0xa0
[ 559.761030][ T9529] do_syscall_64+0xe2/0xf80
[ 559.761049][ T9529] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 559.761064][ T9529] ? trace_irq_disable+0x37/0x100
[ 559.761078][ T9529] ? clear_bhb_loop+0x60/0xb0
[ 559.761098][ T9529] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 559.761113][ T9529] RIP: 0033:0x7f247d799d97
[ 559.761130][ T9529] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 559.761144][ T9529] RSP: 002b:00007fffc4760158 EFLAGS: 00000202 ORIG_RAX: 0000000000000102
[ 559.761162][ T9529] RAX: ffffffffffffffda RBX: 00007f247d805adc RCX: 00007f247d799d97
[ 559.761173][ T9529] RDX: 00000000000001ff RSI: 00007f247d805adc RDI: 00000000ffffff9c
[ 559.761184][ T9529] RBP: 00007fffc47601e0 R08: 0000000000000000 R09: 0000000000000000
[ 559.761194][ T9529] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffc47601e8
[ 559.761204][ T9529] R13: 0000000000000002 R14: 00007fffc47603c8 R15: 0000000000000000
[ 559.761235][ T9529]
[ 560.103580][ T37] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 560.213409][ T37] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 560.291061][ T9834] loop1: detected capacity change from 0 to 1024
[ 560.339097][ T9834] EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 560.356385][ T9834] EXT4-fs warning (device loop1): ext4_cache_extents:532: inode #2: comm syz.1.178: ext4_cache_extents: caching extents
[ 560.356385][ T9834]
[ 560.380499][ T9834] EXT4-fs warning (device loop1): ext4_es_cache_extent:1045: inode #2: comm syz.1.178: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 560.380499][ T9834]
[ 560.407586][ T9834] EXT4-fs warning (device loop1): __es_insert_extent:852: inode #2: comm syz.1.178: __es_insert_extent: add [0, 0, 16, 0x1]
[ 560.407586][ T9834]
[ 560.422589][ T1967] netdevsim netdevsim4 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 560.425185][ T9834] EXT4-fs warning (device loop1): ext4_es_cache_extent:1045: inode #2: comm syz.1.178: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 560.425185][ T9834]
[ 560.468200][ T9842] EXT4-fs warning (device loop1): ext4_es_remove_extent:1657: inode #18: comm syz.1.178: ext4_es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 560.468200][ T9842]
[ 560.490740][ T9842] EXT4-fs warning (device loop1): __es_remove_extent:1512: inode #18: comm syz.1.178: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 560.490740][ T9842]
[ 560.511185][ T9842] EXT4-fs warning (device loop1): ext4_ext_remove_space:2857: inode #18: comm syz.1.178: ext4_ext_remove_space: remove range [0, -2] from extent tree
[ 560.511185][ T9842]
[ 560.554875][ T9529] EXT4-fs warning (device loop1): ext4_cache_extents:532: inode #11: comm syz-executor: ext4_cache_extents: caching extents
[ 560.554875][ T9529]
[ 560.555455][ T6885] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 560.601900][ T6885] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 560.606638][ T9842] EXT4-fs warning (device loop1): ext4_cache_extents:532: inode #18: comm syz.1.178: ext4_cache_extents: caching extents
[ 560.606638][ T9842]
[ 560.614087][ T9529] EXT4-fs warning (device loop1): ext4_es_cache_extent:1045: inode #11: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:11 pblk:32 status:0x1
[ 560.614087][ T9529]
[ 560.664267][ T9539] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 560.709715][ T1967] netdevsim netdevsim4 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 560.804517][ T3548] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 560.823491][ T3548] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 560.859038][ T1967] netdevsim netdevsim4 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 560.924698][ T9527] EXT4-fs warning: 23 callbacks suppressed
[ 560.924715][ T9527] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2219: comm syz-executor: ext4_cache_extents: caching extents
[ 560.924715][ T9527]
[ 560.964404][ T9527] CPU: 1 UID: 0 PID: 9527 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 560.964436][ T9527] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 560.964455][ T9527] Call Trace:
[ 560.964462][ T9527]
[ 560.964470][ T9527] dump_stack_lvl+0xe8/0x150
[ 560.964497][ T9527] ext4_cache_extents+0x31a/0x340
[ 560.964521][ T9527] ? ext4_find_extent+0x2e3/0xa20
[ 560.964558][ T9527] ext4_find_extent+0x3a9/0xa20
[ 560.964590][ T9527] ext4_ext_map_blocks+0x283/0x5760
[ 560.964629][ T9527] ? __lock_acquire+0x6b5/0x2cf0
[ 560.964661][ T9527] ? look_up_lock_class+0x57/0x110
[ 560.964681][ T9527] ? register_lock_class+0x31/0x2e0
[ 560.964704][ T9527] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 560.964727][ T9527] ? __lock_acquire+0x6b5/0x2cf0
[ 560.964773][ T9527] ext4_map_query_blocks+0x13b/0xa00
[ 560.964796][ T9527] ? ext4_map_blocks+0x42c/0x11d0
[ 560.964825][ T9527] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 560.964854][ T9527] ? down_read+0x272/0x2e0
[ 560.964873][ T9527] ? ext4_map_blocks+0x259/0x11d0
[ 560.964897][ T9527] ext4_map_blocks+0x444/0x11d0
[ 560.964932][ T9527] ? __pfx_ext4_map_blocks+0x10/0x10
[ 560.964964][ T9527] ext4_append+0x22e/0x560
[ 560.964987][ T9527] ? __pfx_ext4_append+0x10/0x10
[ 560.965010][ T9527] ? set_nlink+0x5f/0x170
[ 560.965025][ T9527] ext4_init_new_dir+0x11f/0x1c0
[ 560.965053][ T9527] ext4_mkdir+0x49b/0xbf0
[ 560.965085][ T9527] ? __pfx_ext4_mkdir+0x10/0x10
[ 560.965109][ T9527] ? inode_permission+0x2fd/0x5f0
[ 560.965126][ T9527] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 560.965145][ T9527] vfs_mkdir+0x753/0x870
[ 560.965263][ T9527] do_mkdirat+0x27d/0x4b0
[ 560.965288][ T9527] ? __pfx_do_mkdirat+0x10/0x10
[ 560.965312][ T9527] ? getname_flags+0x1e4/0x540
[ 560.965332][ T9527] __x64_sys_mkdirat+0x87/0xa0
[ 560.965354][ T9527] do_syscall_64+0xe2/0xf80
[ 560.965371][ T9527] ? rcu_is_watching+0x15/0xb0
[ 560.965393][ T9527] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 560.965409][ T9527] ? clear_bhb_loop+0x60/0xb0
[ 560.965428][ T9527] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 560.965444][ T9527] RIP: 0033:0x7fbabeb99d97
[ 560.965460][ T9527] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 560.965472][ T9527] RSP: 002b:00007fff0a4b1668 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 560.965489][ T9527] RAX: ffffffffffffffda RBX: 00007fbabec05adc RCX: 00007fbabeb99d97
[ 560.965499][ T9527] RDX: 00000000000001ff RSI: 00007fbabec05adc RDI: 00000000ffffff9c
[ 560.965508][ T9527] RBP: 00007fff0a4b16f0 R08: 0000000000000000 R09: 0000000000000000
[ 560.965517][ T9527] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff0a4b16f8
[ 560.965527][ T9527] R13: 0000000000000002 R14: 00007fff0a4b18d8 R15: 0000000000000000
[ 560.965553][ T9527]
[ 560.968174][ T1967] netdevsim netdevsim4 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 561.024515][ T9527] EXT4-fs warning (device sda1): ext4_es_cache_extent:1045: inode #2219: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:-1 pblk:-1 status:0x8
[ 561.024515][ T9527]
[ 561.329102][ T9842] EXT4-fs error (device loop1): mb_free_blocks:2059: group 0, inode 18: block 177:freeing already freed block (bit 11); block bitmap corrupt.
[ 561.340055][ T9566] veth0_vlan: entered promiscuous mode
[ 561.356584][ T9566] veth1_vlan: entered promiscuous mode
[ 561.373349][ T6377] Bluetooth: hci1: command tx timeout
[ 561.384683][ T9566] veth0_macvtap: entered promiscuous mode
[ 561.395240][ T9566] veth1_macvtap: entered promiscuous mode
[ 561.415587][ T9814] chnl_net:caif_netlink_parms(): no params data found
[ 561.429320][ T9842] EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[ 561.454006][ T9527] EXT4-fs warning (device sda1): __es_insert_extent:852: inode #2219: comm syz-executor: __es_insert_extent: add [0, -2, 576460752303423487, 0x8]
[ 561.454006][ T9527]
[ 561.495636][ T9527] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2219: comm syz-executor: ext4_cache_extents: caching extents
[ 561.495636][ T9527]
[ 561.519625][ T9527] CPU: 1 UID: 0 PID: 9527 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 561.519650][ T9527] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 561.519661][ T9527] Call Trace:
[ 561.519668][ T9527]
[ 561.519676][ T9527] dump_stack_lvl+0xe8/0x150
[ 561.519701][ T9527] ext4_cache_extents+0x31a/0x340
[ 561.519722][ T9527] ? ext4_find_extent+0x2e3/0xa20
[ 561.519746][ T9527] ext4_find_extent+0x3a9/0xa20
[ 561.519774][ T9527] ext4_ext_map_blocks+0x283/0x5760
[ 561.519805][ T9527] ? rcu_is_watching+0x15/0xb0
[ 561.519837][ T9527] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 561.519859][ T9527] ? __lock_acquire+0x6b5/0x2cf0
[ 561.519887][ T9527] ? __lock_acquire+0x6b5/0x2cf0
[ 561.519913][ T9527] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 561.519938][ T9527] ? ext4_map_blocks+0x7b5/0x11d0
[ 561.519983][ T9527] ext4_map_create_blocks+0x11d/0x540
[ 561.520013][ T9527] ext4_map_blocks+0x7cd/0x11d0
[ 561.520048][ T9527] ? __pfx_ext4_map_blocks+0x10/0x10
[ 561.520093][ T9527] ext4_getblk+0x1ca/0x780
[ 561.520120][ T9527] ? __pfx_ext4_getblk+0x10/0x10
[ 561.520157][ T9527] ext4_bread+0x2a/0x180
[ 561.520185][ T9527] ext4_append+0x2ba/0x560
[ 561.520213][ T9527] ? __pfx_ext4_append+0x10/0x10
[ 561.520241][ T9527] ? set_nlink+0x5f/0x170
[ 561.520261][ T9527] ext4_init_new_dir+0x11f/0x1c0
[ 561.520286][ T9527] ext4_mkdir+0x49b/0xbf0
[ 561.520318][ T9527] ? __pfx_ext4_mkdir+0x10/0x10
[ 561.520346][ T9527] ? inode_permission+0x2fd/0x5f0
[ 561.520362][ T9527] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 561.520381][ T9527] vfs_mkdir+0x753/0x870
[ 561.520409][ T9527] do_mkdirat+0x27d/0x4b0
[ 561.520435][ T9527] ? __pfx_do_mkdirat+0x10/0x10
[ 561.520458][ T9527] ? getname_flags+0x1e4/0x540
[ 561.520476][ T9527] __x64_sys_mkdirat+0x87/0xa0
[ 561.520507][ T9527] do_syscall_64+0xe2/0xf80
[ 561.520525][ T9527] ? rcu_is_watching+0x15/0xb0
[ 561.520544][ T9527] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 561.520559][ T9527] ? clear_bhb_loop+0x60/0xb0
[ 561.520581][ T9527] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 561.520594][ T9527] RIP: 0033:0x7fbabeb99d97
[ 561.520608][ T9527] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 561.520621][ T9527] RSP: 002b:00007fff0a4b1668 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 561.520638][ T9527] RAX: ffffffffffffffda RBX: 00007fbabec05adc RCX: 00007fbabeb99d97
[ 561.520667][ T9527] RDX: 00000000000001ff RSI: 00007fbabec05adc RDI: 00000000ffffff9c
[ 561.520677][ T9527] RBP: 00007fff0a4b16f0 R08: 0000000000000000 R09: 0000000000000000
[ 561.520686][ T9527] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff0a4b16f8
[ 561.520696][ T9527] R13: 0000000000000002 R14: 00007fff0a4b18d8 R15: 0000000000000000
[ 561.520726][ T9527]
[ 561.826149][ T9527] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6274: inode #2219: comm syz-executor: ext4_mb_new_blocks: Allocation requested for: [0, 0]
[ 561.826149][ T9527]
[ 561.846668][ T9527] EXT4-fs warning (device sda1): ext4_mb_regular_allocator:3120: inode #2219: comm syz-executor: ext4_mb_regular_allocator: Best len 1, origin len 1, ac_status 2, ac_flags 0x0, cr 1 ret 0
[ 561.846668][ T9527]
[ 561.869594][ T9527] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6363: inode #2219: comm syz-executor: ext4_mb_new_blocks: Allocation found: [0, 0], pblk:5901 len:1
[ 561.869594][ T9527]
[ 561.888014][ T9527] EXT4-fs warning (device sda1): ext4_ext_insert_extent:2017: inode #2219: comm syz-executor: ext4_ext_insert_extent: add newext [0, 1, 5901, unwrit:0] to extent tree.
[ 561.888014][ T9527]
[ 561.910294][ T9527] EXT4-fs warning (device sda1): ext4_es_insert_extent:931: inode #2219: comm syz-executor: ext4_es_insert_extent: add [0, 0] 5901 1 0 to extent status tree of inode 2219
[ 561.910294][ T9527]
[ 561.936497][ T9527] EXT4-fs warning (device sda1): __es_remove_extent:1512: inode #2219: comm syz-executor: __es_remove_extent: remove [0,0] range from extent status tree of inode 2219
[ 561.936497][ T9527]
[ 561.994944][ T9862] CPU: 1 UID: 0 PID: 9862 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 561.994968][ T9862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 561.994977][ T9862] Call Trace:
[ 561.994984][ T9862]
[ 561.994992][ T9862] dump_stack_lvl+0xe8/0x150
[ 561.995016][ T9862] ext4_cache_extents+0x31a/0x340
[ 561.995035][ T9862] ? ext4_find_extent+0x2e3/0xa20
[ 561.995059][ T9862] ext4_find_extent+0x3a9/0xa20
[ 561.995083][ T9862] ext4_ext_map_blocks+0x283/0x5760
[ 561.995111][ T9862] ? __lock_acquire+0x6b5/0x2cf0
[ 561.995143][ T9862] ? look_up_lock_class+0x57/0x110
[ 561.995163][ T9862] ? register_lock_class+0x31/0x2e0
[ 561.995185][ T9862] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 561.995205][ T9862] ? __lock_acquire+0x6b5/0x2cf0
[ 561.995241][ T9862] ext4_map_query_blocks+0x13b/0xa00
[ 561.995264][ T9862] ? ext4_map_blocks+0x42c/0x11d0
[ 561.995291][ T9862] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 561.995319][ T9862] ? down_read+0x272/0x2e0
[ 561.995337][ T9862] ? ext4_map_blocks+0x259/0x11d0
[ 561.995358][ T9862] ext4_map_blocks+0x444/0x11d0
[ 561.995388][ T9862] ? __pfx_ext4_map_blocks+0x10/0x10
[ 561.995421][ T9862] ext4_append+0x22e/0x560
[ 561.995447][ T9862] ? __pfx_ext4_append+0x10/0x10
[ 561.995472][ T9862] ? set_nlink+0x5f/0x170
[ 561.995490][ T9862] ext4_init_new_dir+0x11f/0x1c0
[ 561.995515][ T9862] ext4_mkdir+0x49b/0xbf0
2026/02/10 20:53:16 executed programs: 178
[ 561.995548][ T9862] ? __pfx_ext4_mkdir+0x10/0x10
[ 561.995572][ T9862] ? inode_permission+0x2fd/0x5f0
[ 561.995589][ T9862] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 561.995608][ T9862] vfs_mkdir+0x753/0x870
[ 561.995636][ T9862] do_mkdirat+0x27d/0x4b0
[ 561.995660][ T9862] ? __pfx_do_mkdirat+0x10/0x10
[ 561.995678][ T9862] ? strncpy_from_user+0x150/0x2b0
[ 561.995704][ T9862] ? getname_flags+0x1e4/0x540
[ 561.995722][ T9862] __x64_sys_mkdir+0x6c/0x80
[ 561.995743][ T9862] do_syscall_64+0xe2/0xf80
[ 561.995761][ T9862] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 561.995775][ T9862] ? trace_irq_disable+0x37/0x100
[ 561.995789][ T9862] ? clear_bhb_loop+0x60/0xb0
[ 561.995807][ T9862] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 561.995822][ T9862] RIP: 0033:0x7f23155c82d7
[ 561.995929][ T9862] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 561.995942][ T9862] RSP: 002b:00007fff21044908 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 561.995961][ T9862] RAX: ffffffffffffffda RBX: 00007fff21044a32 RCX: 00007f23155c82d7
[ 561.995973][ T9862] RDX: 0000000000495bab RSI: 00000000000001c0 RDI: 00007fff21044a20
[ 561.995983][ T9862] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 561.995992][ T9862] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000495bab
[ 561.996001][ T9862] R13: 00007fff21044a32 R14: 0000000000000004 R15: 00007f2315655dc0
[ 561.996025][ T9862]
[ 561.996636][ T9862] CPU: 1 UID: 0 PID: 9862 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 561.996660][ T9862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 561.996669][ T9862] Call Trace:
[ 561.996676][ T9862]
[ 561.996683][ T9862] dump_stack_lvl+0xe8/0x150
[ 561.996707][ T9862] ext4_cache_extents+0x31a/0x340
[ 561.996726][ T9862] ? ext4_find_extent+0x2e3/0xa20
[ 561.996940][ T9862] ext4_find_extent+0x3a9/0xa20
[ 561.996966][ T9862] ext4_ext_map_blocks+0x283/0x5760
[ 561.996993][ T9862] ? rcu_is_watching+0x15/0xb0
[ 561.997015][ T9862] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 561.997036][ T9862] ? __lock_acquire+0x6b5/0x2cf0
[ 561.997061][ T9862] ? __lock_acquire+0x6b5/0x2cf0
[ 561.997086][ T9862] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 561.997108][ T9862] ? ext4_map_blocks+0x7b5/0x11d0
[ 561.997167][ T9862] ext4_map_create_blocks+0x11d/0x540
[ 561.997195][ T9862] ext4_map_blocks+0x7cd/0x11d0
[ 561.997228][ T9862] ? __pfx_ext4_map_blocks+0x10/0x10
[ 561.997266][ T9862] ext4_getblk+0x1ca/0x780
[ 561.997292][ T9862] ? __pfx_ext4_getblk+0x10/0x10
[ 561.997326][ T9862] ext4_bread+0x2a/0x180
[ 561.997350][ T9862] ext4_append+0x2ba/0x560
[ 561.997376][ T9862] ? __pfx_ext4_append+0x10/0x10
[ 561.997403][ T9862] ? set_nlink+0x5f/0x170
[ 561.997421][ T9862] ext4_init_new_dir+0x11f/0x1c0
[ 561.997446][ T9862] ext4_mkdir+0x49b/0xbf0
[ 561.997479][ T9862] ? __pfx_ext4_mkdir+0x10/0x10
[ 561.997508][ T9862] ? inode_permission+0x2fd/0x5f0
[ 561.997524][ T9862] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 561.997541][ T9862] vfs_mkdir+0x753/0x870
[ 561.997566][ T9862] do_mkdirat+0x27d/0x4b0
[ 561.997590][ T9862] ? __pfx_do_mkdirat+0x10/0x10
[ 561.997607][ T9862] ? strncpy_from_user+0x150/0x2b0
[ 561.997634][ T9862] ? getname_flags+0x1e4/0x540
[ 561.997654][ T9862] __x64_sys_mkdir+0x6c/0x80
[ 561.997675][ T9862] do_syscall_64+0xe2/0xf80
[ 561.997694][ T9862] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 561.997708][ T9862] ? trace_irq_disable+0x37/0x100
[ 561.997720][ T9862] ? clear_bhb_loop+0x60/0xb0
[ 561.997749][ T9862] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 561.997764][ T9862] RIP: 0033:0x7f23155c82d7
[ 561.997778][ T9862] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 561.997792][ T9862] RSP: 002b:00007fff21044908 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 561.997808][ T9862] RAX: ffffffffffffffda RBX: 00007fff21044a32 RCX: 00007f23155c82d7
[ 561.997817][ T9862] RDX: 0000000000495bab RSI: 00000000000001c0 RDI: 00007fff21044a20
[ 561.997827][ T9862] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 561.997836][ T9862] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000495bab
[ 561.997845][ T9862] R13: 00007fff21044a32 R14: 0000000000000004 R15: 00007f2315655dc0
[ 561.997873][ T9862]
[ 562.076459][ T9539] veth0_vlan: entered promiscuous mode
[ 562.351636][ T6376] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1
[ 562.598326][ T9566] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 562.621416][ T9875] loop2: detected capacity change from 0 to 1024
[ 562.659691][ T6376] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9
[ 562.668614][ T6376] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9
[ 562.690934][ T6376] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4
[ 562.711318][ T6376] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2
[ 562.735322][ T9875] EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 562.815577][ T9814] bridge0: port 1(bridge_slave_0) entered blocking state
[ 562.831339][ T9814] bridge0: port 1(bridge_slave_0) entered disabled state
[ 562.844731][ T9882] EXT4-fs warning (device loop2): ext4_cache_extents:532: inode #2: comm syz.2.175: ext4_cache_extents: caching extents
[ 562.844731][ T9882]
[ 562.861940][ T9814] bridge_slave_0: entered allmulticast mode
[ 562.870231][ T9814] bridge_slave_0: entered promiscuous mode
[ 562.902907][ T9814] bridge0: port 2(bridge_slave_1) entered blocking state
[ 562.916504][ T9882] EXT4-fs warning (device loop2): ext4_es_cache_extent:1045: inode #2: comm syz.2.175: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 562.916504][ T9882]
[ 562.920119][ T9814] bridge0: port 2(bridge_slave_1) entered disabled state
[ 562.977259][ T9814] bridge_slave_1: entered allmulticast mode
[ 562.981785][ T9882] EXT4-fs warning (device loop2): __es_insert_extent:852: inode #2: comm syz.2.175: __es_insert_extent: add [0, 0, 16, 0x1]
[ 562.981785][ T9882]
[ 563.015490][ T9814] bridge_slave_1: entered promiscuous mode
[ 563.019170][ T9882] EXT4-fs warning (device loop2): ext4_es_cache_extent:1045: inode #2: comm syz.2.175: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 563.019170][ T9882]
[ 563.057143][ T9527] EXT4-fs warning (device loop2): ext4_cache_extents:532: inode #11: comm syz-executor: ext4_cache_extents: caching extents
[ 563.057143][ T9527]
[ 563.074369][ T9882] EXT4-fs warning (device loop2): ext4_es_remove_extent:1657: inode #18: comm syz.2.175: ext4_es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 563.074369][ T9882]
[ 563.079244][ T9539] veth1_vlan: entered promiscuous mode
[ 563.104037][ T9527] EXT4-fs warning (device loop2): ext4_es_cache_extent:1045: inode #11: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:11 pblk:32 status:0x1
[ 563.104037][ T9527]
[ 563.127949][ T9882] EXT4-fs warning (device loop2): __es_remove_extent:1512: inode #18: comm syz.2.175: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 563.127949][ T9882]
[ 563.156333][ T9527] EXT4-fs warning (device loop2): __es_insert_extent:852: inode #11: comm syz-executor: __es_insert_extent: add [0, 10, 32, 0x1]
[ 563.156333][ T9527]
[ 563.174523][ T9882] EXT4-fs warning (device loop2): ext4_ext_remove_space:2857: inode #18: comm syz.2.175: ext4_ext_remove_space: remove range [0, -2] from extent tree
[ 563.174523][ T9882]
[ 563.179949][ T9566] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 563.234743][ T1967] bridge_slave_1: left allmulticast mode
[ 563.240991][ T1967] bridge_slave_1: left promiscuous mode
[ 563.250888][ T1967] bridge0: port 2(bridge_slave_1) entered disabled state
[ 563.264770][ T1967] bridge_slave_0: left allmulticast mode
[ 563.265924][ T9882] EXT4-fs error (device loop2): ext4_mb_mark_diskspace_used:4242: comm syz.2.175: Allocating blocks 497-513 which overlap fs metadata
[ 563.273565][ T1967] bridge_slave_0: left promiscuous mode
[ 563.291237][ T9882] EXT4-fs (loop2): pa ffff888060379488: logic 256, phys. 385, len 8
[ 563.294192][ T1967] bridge0: port 1(bridge_slave_0) entered disabled state
[ 563.302307][ T9882] EXT4-fs error (device loop2): ext4_mb_release_inode_pa:5486: group 0, free 0, pa_free 1
[ 563.450991][ T6376] Bluetooth: hci1: command tx timeout
[ 563.609524][ T1967] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 563.623288][ T1967] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 563.635368][ T1967] bond0 (unregistering): Released all slaves
[ 563.647793][ T9147] netdevsim netdevsim5 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 563.658421][ T9147] netdevsim netdevsim5 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 563.675318][ T9814] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 563.736139][ T7335] netdevsim netdevsim5 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 563.745800][ T7335] netdevsim netdevsim5 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 563.759084][ T9814] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 563.840308][ T9814] team0: Port device team_slave_0 added
[ 563.908798][ T9814] team0: Port device team_slave_1 added
[ 563.935930][ T9882] EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[ 563.996831][ T9886] CPU: 0 UID: 0 PID: 9886 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 563.996855][ T9886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 563.996873][ T9886] Call Trace:
[ 563.996880][ T9886]
[ 563.996888][ T9886] dump_stack_lvl+0xe8/0x150
[ 563.996913][ T9886] ext4_cache_extents+0x31a/0x340
[ 563.996933][ T9886] ? ext4_find_extent+0x2e3/0xa20
[ 563.996957][ T9886] ext4_find_extent+0x3a9/0xa20
[ 563.996985][ T9886] ext4_ext_map_blocks+0x283/0x5760
[ 563.997018][ T9886] ? __lock_acquire+0x6b5/0x2cf0
[ 563.997051][ T9886] ? look_up_lock_class+0x57/0x110
[ 563.997071][ T9886] ? register_lock_class+0x31/0x2e0
[ 563.997095][ T9886] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 563.997118][ T9886] ? __lock_acquire+0x6b5/0x2cf0
[ 563.997161][ T9886] ext4_map_query_blocks+0x13b/0xa00
[ 563.997183][ T9886] ? ext4_map_blocks+0x42c/0x11d0
[ 563.997212][ T9886] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 563.997241][ T9886] ? down_read+0x272/0x2e0
[ 563.997259][ T9886] ? ext4_map_blocks+0x259/0x11d0
[ 563.997283][ T9886] ext4_map_blocks+0x444/0x11d0
[ 563.997317][ T9886] ? __pfx_ext4_map_blocks+0x10/0x10
[ 563.997356][ T9886] ext4_append+0x22e/0x560
[ 563.997383][ T9886] ? __pfx_ext4_append+0x10/0x10
[ 563.997411][ T9886] ? set_nlink+0x5f/0x170
[ 563.997430][ T9886] ext4_init_new_dir+0x11f/0x1c0
[ 563.997455][ T9886] ext4_mkdir+0x49b/0xbf0
[ 563.997489][ T9886] ? __pfx_ext4_mkdir+0x10/0x10
[ 563.997514][ T9886] ? inode_permission+0x2fd/0x5f0
[ 563.997531][ T9886] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 563.997551][ T9886] vfs_mkdir+0x753/0x870
[ 563.997579][ T9886] do_mkdirat+0x27d/0x4b0
[ 563.997606][ T9886] ? __pfx_do_mkdirat+0x10/0x10
[ 563.997624][ T9886] ? strncpy_from_user+0x150/0x2b0
[ 563.997650][ T9886] ? getname_flags+0x1e4/0x540
[ 563.997670][ T9886] __x64_sys_mkdir+0x6c/0x80
[ 563.997691][ T9886] do_syscall_64+0xe2/0xf80
[ 563.997710][ T9886] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 563.997725][ T9886] ? trace_irq_disable+0x37/0x100
[ 563.997739][ T9886] ? clear_bhb_loop+0x60/0xb0
[ 563.997759][ T9886] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 563.997774][ T9886] RIP: 0033:0x7fe11d1c82d7
[ 563.997789][ T9886] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 563.997803][ T9886] RSP: 002b:00007ffdbe711178 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 563.997821][ T9886] RAX: ffffffffffffffda RBX: 00007ffdbe7112a2 RCX: 00007fe11d1c82d7
[ 563.997832][ T9886] RDX: 000000000411c1c0 RSI: 00000000000001c0 RDI: 00007ffdbe711290
[ 563.997842][ T9886] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 563.997853][ T9886] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000411c1c0
[ 563.997862][ T9886] R13: 00007ffdbe7112a2 R14: 0000000000000004 R15: 00007fe11d255dc0
[ 563.997896][ T9886]
[ 563.997962][ T9886] CPU: 0 UID: 0 PID: 9886 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 563.997979][ T9886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 563.997987][ T9886] Call Trace:
[ 563.997992][ T9886]
[ 563.998000][ T9886] dump_stack_lvl+0xe8/0x150
[ 563.998019][ T9886] ext4_cache_extents+0x31a/0x340
[ 563.998035][ T9886] ? ext4_find_extent+0x2e3/0xa20
[ 563.998057][ T9886] ext4_find_extent+0x3a9/0xa20
[ 563.998084][ T9886] ext4_ext_map_blocks+0x283/0x5760
[ 563.998113][ T9886] ? rcu_is_watching+0x15/0xb0
[ 563.998136][ T9886] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 563.998158][ T9886] ? __lock_acquire+0x6b5/0x2cf0
[ 563.998185][ T9886] ? __lock_acquire+0x6b5/0x2cf0
[ 563.998209][ T9886] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 563.998234][ T9886] ? ext4_map_blocks+0x7b5/0x11d0
[ 563.998279][ T9886] ext4_map_create_blocks+0x11d/0x540
[ 563.998310][ T9886] ext4_map_blocks+0x7cd/0x11d0
[ 563.998344][ T9886] ? __pfx_ext4_map_blocks+0x10/0x10
[ 563.998382][ T9886] ext4_getblk+0x1ca/0x780
[ 563.998410][ T9886] ? __pfx_ext4_getblk+0x10/0x10
[ 563.998446][ T9886] ext4_bread+0x2a/0x180
[ 563.998469][ T9886] ext4_append+0x2ba/0x560
[ 563.998495][ T9886] ? __pfx_ext4_append+0x10/0x10
[ 563.998523][ T9886] ? set_nlink+0x5f/0x170
[ 563.998541][ T9886] ext4_init_new_dir+0x11f/0x1c0
[ 563.998566][ T9886] ext4_mkdir+0x49b/0xbf0
[ 563.998600][ T9886] ? __pfx_ext4_mkdir+0x10/0x10
[ 563.998625][ T9886] ? inode_permission+0x2fd/0x5f0
[ 563.998641][ T9886] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 563.998660][ T9886] vfs_mkdir+0x753/0x870
[ 563.998688][ T9886] do_mkdirat+0x27d/0x4b0
[ 563.998714][ T9886] ? __pfx_do_mkdirat+0x10/0x10
[ 563.998732][ T9886] ? strncpy_from_user+0x150/0x2b0
[ 563.998758][ T9886] ? getname_flags+0x1e4/0x540
[ 563.998779][ T9886] __x64_sys_mkdir+0x6c/0x80
[ 563.998800][ T9886] do_syscall_64+0xe2/0xf80
[ 563.998818][ T9886] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 563.998833][ T9886] ? trace_irq_disable+0x37/0x100
[ 563.998847][ T9886] ? clear_bhb_loop+0x60/0xb0
[ 563.998872][ T9886] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 563.998888][ T9886] RIP: 0033:0x7fe11d1c82d7
[ 563.998902][ T9886] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 563.998916][ T9886] RSP: 002b:00007ffdbe711178 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 563.998933][ T9886] RAX: ffffffffffffffda RBX: 00007ffdbe7112a2 RCX: 00007fe11d1c82d7
[ 563.998944][ T9886] RDX: 000000000411c1c0 RSI: 00000000000001c0 RDI: 00007ffdbe711290
[ 563.998955][ T9886] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 563.998965][ T9886] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000411c1c0
[ 563.998975][ T9886] R13: 00007ffdbe7112a2 R14: 0000000000000004 R15: 00007fe11d255dc0
[ 563.999004][ T9886]
[ 564.667549][ T9814] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 564.676920][ T6377] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1
[ 564.686167][ T6377] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9
[ 564.694020][ T9814] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 564.727056][ T9814] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 564.728814][ T6377] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9
[ 564.741055][ T9814] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 564.753886][ T9814] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 564.787512][ T9814] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 564.788978][ T6377] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4
[ 564.800722][ T6375] Bluetooth: hci4: command tx timeout
[ 564.807961][ T6377] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2
[ 564.904955][ T1967] hsr_slave_0: left promiscuous mode
[ 564.912879][ T1967] hsr_slave_1: left promiscuous mode
[ 564.919632][ T1967] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 564.928974][ T1967] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 564.938260][ T1967] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 564.947061][ T1967] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 564.966744][ T1967] veth1_macvtap: left promiscuous mode
[ 564.973094][ T1967] veth0_macvtap: left promiscuous mode
[ 564.981323][ T1967] veth1_vlan: left promiscuous mode
[ 564.988001][ T1967] veth0_vlan: left promiscuous mode
[ 565.442999][ T1967] team0 (unregistering): Port device team_slave_1 removed
[ 565.487650][ T1967] team0 (unregistering): Port device team_slave_0 removed
[ 565.521804][ T6377] Bluetooth: hci1: command tx timeout
[ 565.892044][ T1531] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 565.900998][ T1531] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 565.949566][ T9814] hsr_slave_0: entered promiscuous mode
[ 565.956702][ T9814] hsr_slave_1: entered promiscuous mode
[ 565.977013][ T9539] veth0_macvtap: entered promiscuous mode
[ 566.051771][ T7335] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 566.072097][ T7335] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 566.087603][ T9539] veth1_macvtap: entered promiscuous mode
[ 566.162900][ T9566] EXT4-fs warning: 23 callbacks suppressed
[ 566.162919][ T9566] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2222: comm syz-executor: ext4_cache_extents: caching extents
[ 566.162919][ T9566]
[ 566.212141][ T9566] CPU: 0 UID: 0 PID: 9566 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 566.212164][ T9566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 566.212173][ T9566] Call Trace:
[ 566.212180][ T9566]
[ 566.212187][ T9566] dump_stack_lvl+0xe8/0x150
[ 566.212212][ T9566] ext4_cache_extents+0x31a/0x340
[ 566.212231][ T9566] ? ext4_find_extent+0x2e3/0xa20
[ 566.212252][ T9566] ext4_find_extent+0x3a9/0xa20
[ 566.212277][ T9566] ext4_ext_map_blocks+0x283/0x5760
[ 566.212310][ T9566] ? __lock_acquire+0x6b5/0x2cf0
[ 566.212341][ T9566] ? look_up_lock_class+0x57/0x110
[ 566.212360][ T9566] ? register_lock_class+0x31/0x2e0
[ 566.212392][ T9566] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 566.212414][ T9566] ? __lock_acquire+0x6b5/0x2cf0
[ 566.212456][ T9566] ext4_map_query_blocks+0x13b/0xa00
[ 566.212478][ T9566] ? ext4_map_blocks+0x42c/0x11d0
[ 566.212505][ T9566] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 566.212535][ T9566] ? down_read+0x272/0x2e0
[ 566.212553][ T9566] ? ext4_map_blocks+0x259/0x11d0
[ 566.212576][ T9566] ext4_map_blocks+0x444/0x11d0
[ 566.212610][ T9566] ? __pfx_ext4_map_blocks+0x10/0x10
[ 566.212646][ T9566] ext4_append+0x22e/0x560
[ 566.212673][ T9566] ? __pfx_ext4_append+0x10/0x10
[ 566.212701][ T9566] ? set_nlink+0x5f/0x170
[ 566.212719][ T9566] ext4_init_new_dir+0x11f/0x1c0
[ 566.212745][ T9566] ext4_mkdir+0x49b/0xbf0
[ 566.212778][ T9566] ? __pfx_ext4_mkdir+0x10/0x10
[ 566.212804][ T9566] ? inode_permission+0x2fd/0x5f0
[ 566.212821][ T9566] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 566.212840][ T9566] vfs_mkdir+0x753/0x870
[ 566.212869][ T9566] do_mkdirat+0x27d/0x4b0
[ 566.212901][ T9566] ? __pfx_do_mkdirat+0x10/0x10
[ 566.212925][ T9566] ? getname_flags+0x1e4/0x540
[ 566.212946][ T9566] __x64_sys_mkdirat+0x87/0xa0
[ 566.212967][ T9566] do_syscall_64+0xe2/0xf80
[ 566.212986][ T9566] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 566.213001][ T9566] ? trace_irq_disable+0x37/0x100
[ 566.213015][ T9566] ? clear_bhb_loop+0x60/0xb0
[ 566.213035][ T9566] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 566.213049][ T9566] RIP: 0033:0x7f74a2599d97
[ 566.213066][ T9566] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 566.213079][ T9566] RSP: 002b:00007ffcd8f13f38 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 566.213097][ T9566] RAX: ffffffffffffffda RBX: 00007f74a2605adc RCX: 00007f74a2599d97
[ 566.213109][ T9566] RDX: 00000000000001ff RSI: 00007f74a2605adc RDI: 00000000ffffff9c
[ 566.213120][ T9566] RBP: 00007ffcd8f13fc0 R08: 0000000000000000 R09: 0000000000000000
[ 566.213131][ T9566] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcd8f13fc8
[ 566.213142][ T9566] R13: 0000000000000002 R14: 00007ffcd8f141a8 R15: 0000000000000000
[ 566.213169][ T9566]
[ 566.213183][ T9566] EXT4-fs warning (device sda1): ext4_es_cache_extent:1045: inode #2222: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:-1 pblk:-1 status:0x8
[ 566.213183][ T9566]
[ 566.258111][ T9539] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 566.290666][ T9566] EXT4-fs warning (device sda1): __es_insert_extent:852: inode #2222: comm syz-executor: __es_insert_extent: add [0, -2, 576460752303423487, 0x8]
[ 566.290666][ T9566]
[ 566.561232][ T9566] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2222: comm syz-executor: ext4_cache_extents: caching extents
[ 566.561232][ T9566]
[ 566.562345][ T9865] chnl_net:caif_netlink_parms(): no params data found
[ 566.585279][ T9566] CPU: 0 UID: 0 PID: 9566 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 566.585299][ T9566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 566.585308][ T9566] Call Trace:
[ 566.585315][ T9566]
[ 566.585322][ T9566] dump_stack_lvl+0xe8/0x150
[ 566.585343][ T9566] ext4_cache_extents+0x31a/0x340
[ 566.585381][ T9566] ? ext4_find_extent+0x2e3/0xa20
[ 566.585403][ T9566] ext4_find_extent+0x3a9/0xa20
[ 566.585429][ T9566] ext4_ext_map_blocks+0x283/0x5760
[ 566.585457][ T9566] ? rcu_is_watching+0x15/0xb0
[ 566.585480][ T9566] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 566.585499][ T9566] ? __lock_acquire+0x6b5/0x2cf0
[ 566.585523][ T9566] ? __lock_acquire+0x6b5/0x2cf0
[ 566.585544][ T9566] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 566.585566][ T9566] ? ext4_map_blocks+0x7b5/0x11d0
[ 566.585607][ T9566] ext4_map_create_blocks+0x11d/0x540
[ 566.585636][ T9566] ext4_map_blocks+0x7cd/0x11d0
[ 566.585670][ T9566] ? __pfx_ext4_map_blocks+0x10/0x10
[ 566.585707][ T9566] ext4_getblk+0x1ca/0x780
[ 566.585735][ T9566] ? __pfx_ext4_getblk+0x10/0x10
[ 566.585769][ T9566] ext4_bread+0x2a/0x180
[ 566.585792][ T9566] ext4_append+0x2ba/0x560
[ 566.585825][ T9566] ? __pfx_ext4_append+0x10/0x10
[ 566.585851][ T9566] ? set_nlink+0x5f/0x170
[ 566.585868][ T9566] ext4_init_new_dir+0x11f/0x1c0
[ 566.585893][ T9566] ext4_mkdir+0x49b/0xbf0
[ 566.585927][ T9566] ? __pfx_ext4_mkdir+0x10/0x10
[ 566.585952][ T9566] ? inode_permission+0x2fd/0x5f0
[ 566.585968][ T9566] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 566.585987][ T9566] vfs_mkdir+0x753/0x870
[ 566.586017][ T9566] do_mkdirat+0x27d/0x4b0
[ 566.586042][ T9566] ? __pfx_do_mkdirat+0x10/0x10
[ 566.586067][ T9566] ? getname_flags+0x1e4/0x540
[ 566.586088][ T9566] __x64_sys_mkdirat+0x87/0xa0
[ 566.586109][ T9566] do_syscall_64+0xe2/0xf80
[ 566.586127][ T9566] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 566.586142][ T9566] ? trace_irq_disable+0x37/0x100
[ 566.586156][ T9566] ? clear_bhb_loop+0x60/0xb0
[ 566.586176][ T9566] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 566.586192][ T9566] RIP: 0033:0x7f74a2599d97
[ 566.586208][ T9566] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 566.586222][ T9566] RSP: 002b:00007ffcd8f13f38 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 566.586239][ T9566] RAX: ffffffffffffffda RBX: 00007f74a2605adc RCX: 00007f74a2599d97
[ 566.586251][ T9566] RDX: 00000000000001ff RSI: 00007f74a2605adc RDI: 00000000ffffff9c
[ 566.586260][ T9566] RBP: 00007ffcd8f13fc0 R08: 0000000000000000 R09: 0000000000000000
[ 566.586269][ T9566] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcd8f13fc8
[ 566.586280][ T9566] R13: 0000000000000002 R14: 00007ffcd8f141a8 R15: 0000000000000000
[ 566.586308][ T9566]
[ 566.586322][ T9566] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6274: inode #2222: comm syz-executor: ext4_mb_new_blocks: Allocation requested for: [0, 0]
[ 566.586322][ T9566]
[ 566.880929][ T6377] Bluetooth: hci4: command tx timeout
[ 566.890060][ T9566] EXT4-fs warning (device sda1): ext4_mb_regular_allocator:3120: inode #2222: comm syz-executor: ext4_mb_regular_allocator: Best len 1, origin len 1, ac_status 2, ac_flags 0x0, cr 1 ret 0
[ 566.890060][ T9566]
[ 566.901910][ T6377] Bluetooth: hci2: command tx timeout
[ 566.909482][ T9566] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6363: inode #2222: comm syz-executor: ext4_mb_new_blocks: Allocation found: [0, 0], pblk:5904 len:1
[ 566.909482][ T9566]
[ 566.966430][ T9566] EXT4-fs warning (device sda1): ext4_ext_insert_extent:2017: inode #2222: comm syz-executor: ext4_ext_insert_extent: add newext [0, 1, 5904, unwrit:0] to extent tree.
[ 566.966430][ T9566]
[ 566.992260][ T9566] EXT4-fs warning (device sda1): ext4_es_insert_extent:931: inode #2222: comm syz-executor: ext4_es_insert_extent: add [0, 0] 5904 1 0 to extent status tree of inode 2222
[ 566.992260][ T9566]
[ 567.014101][ T9566] EXT4-fs warning (device sda1): __es_remove_extent:1512: inode #2222: comm syz-executor: __es_remove_extent: remove [0,0] range from extent status tree of inode 2222
[ 567.014101][ T9566]
[ 567.063034][ T9539] batman_adv: batadv0: Interface activated: batadv_slave_1
2026/02/10 20:53:21 executed programs: 182
[ 567.173179][ T9028] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 567.203487][ T9896] loop5: detected capacity change from 0 to 1024
[ 567.228175][ T9896] EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 567.250364][ T9901] EXT4-fs warning (device loop5): ext4_cache_extents:532: inode #2: comm syz.5.184: ext4_cache_extents: caching extents
[ 567.250364][ T9901]
[ 567.277828][ T9901] EXT4-fs warning (device loop5): ext4_es_cache_extent:1045: inode #2: comm syz.5.184: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 567.277828][ T9901]
[ 567.297859][ T9901] EXT4-fs warning (device loop5): __es_insert_extent:852: inode #2: comm syz.5.184: __es_insert_extent: add [0, 0, 16, 0x1]
[ 567.297859][ T9901]
[ 567.313683][ T9901] EXT4-fs warning (device loop5): ext4_es_cache_extent:1045: inode #2: comm syz.5.184: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 567.313683][ T9901]
[ 567.333747][ T9028] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 567.345980][ T9901] EXT4-fs warning (device loop5): ext4_es_remove_extent:1657: inode #18: comm syz.5.184: ext4_es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 567.345980][ T9901]
[ 567.373055][ T9566] EXT4-fs warning (device loop5): ext4_cache_extents:532: inode #11: comm syz-executor: ext4_cache_extents: caching extents
[ 567.373055][ T9566]
[ 567.399961][ T9901] EXT4-fs warning (device loop5): __es_remove_extent:1512: inode #18: comm syz.5.184: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 567.399961][ T9901]
[ 567.432109][ T9566] EXT4-fs warning (device loop5): ext4_es_cache_extent:1045: inode #11: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:11 pblk:32 status:0x1
[ 567.432109][ T9566]
[ 567.456759][ T9028] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 567.461730][ T9901] EXT4-fs warning (device loop5): ext4_ext_remove_space:2857: inode #18: comm syz.5.184: ext4_ext_remove_space: remove range [0, -2] from extent tree
[ 567.461730][ T9901]
[ 567.470787][ T9028] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 567.498515][ T9901] EXT4-fs warning (device loop5): ext4_cache_extents:532: inode #18: comm syz.5.184: ext4_cache_extents: caching extents
[ 567.498515][ T9901]
[ 567.605879][ T6377] Bluetooth: hci1: command tx timeout
[ 567.623944][ T1967] netdevsim netdevsim2 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 567.667249][ T9865] bridge0: port 1(bridge_slave_0) entered blocking state
[ 567.674818][ T9865] bridge0: port 1(bridge_slave_0) entered disabled state
[ 567.682383][ T9865] bridge_slave_0: entered allmulticast mode
[ 567.690290][ T9865] bridge_slave_0: entered promiscuous mode
[ 567.698853][ T9865] bridge0: port 2(bridge_slave_1) entered blocking state
[ 567.706839][ T9865] bridge0: port 2(bridge_slave_1) entered disabled state
[ 567.716097][ T9865] bridge_slave_1: entered allmulticast mode
[ 567.724006][ T9865] bridge_slave_1: entered promiscuous mode
[ 567.738983][ T9887] chnl_net:caif_netlink_parms(): no params data found
[ 567.802604][ T1967] netdevsim netdevsim2 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 567.861765][ T9865] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 567.885296][ T9901] EXT4-fs (loop5): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[ 567.904153][ T9865] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 567.989837][ T9907] CPU: 0 UID: 0 PID: 9907 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 567.989862][ T9907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 567.989872][ T9907] Call Trace:
[ 567.989878][ T9907]
[ 567.989886][ T9907] dump_stack_lvl+0xe8/0x150
[ 567.989910][ T9907] ext4_cache_extents+0x31a/0x340
[ 567.989929][ T9907] ? ext4_find_extent+0x2e3/0xa20
[ 567.989953][ T9907] ext4_find_extent+0x3a9/0xa20
[ 567.989979][ T9907] ext4_ext_map_blocks+0x283/0x5760
[ 567.990011][ T9907] ? __lock_acquire+0x6b5/0x2cf0
[ 567.990045][ T9907] ? __lock_acquire+0x6b5/0x2cf0
[ 567.990070][ T9907] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 567.990093][ T9907] ? __lock_acquire+0x6b5/0x2cf0
[ 567.990122][ T9907] ? do_raw_spin_lock+0x12b/0x2f0
[ 567.990142][ T9907] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 567.990162][ T9907] ext4_map_query_blocks+0x13b/0xa00
[ 567.990181][ T9907] ? ext4_map_blocks+0x42c/0x11d0
[ 567.990207][ T9907] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 567.990234][ T9907] ? down_read+0x272/0x2e0
[ 567.990253][ T9907] ? ext4_map_blocks+0x259/0x11d0
[ 567.990276][ T9907] ext4_map_blocks+0x444/0x11d0
[ 567.990310][ T9907] ? __pfx_ext4_map_blocks+0x10/0x10
[ 567.990347][ T9907] ext4_append+0x22e/0x560
[ 567.990374][ T9907] ? __pfx_ext4_append+0x10/0x10
[ 567.990401][ T9907] ? set_nlink+0x5f/0x170
[ 567.990419][ T9907] ext4_init_new_dir+0x11f/0x1c0
[ 567.990443][ T9907] ext4_mkdir+0x49b/0xbf0
[ 567.990484][ T9907] ? __pfx_ext4_mkdir+0x10/0x10
[ 567.990509][ T9907] ? inode_permission+0x2fd/0x5f0
[ 567.990526][ T9907] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 567.990545][ T9907] vfs_mkdir+0x753/0x870
[ 567.990575][ T9907] do_mkdirat+0x27d/0x4b0
[ 567.990598][ T9907] ? __pfx_do_mkdirat+0x10/0x10
[ 567.990615][ T9907] ? strncpy_from_user+0x150/0x2b0
[ 567.990639][ T9907] ? getname_flags+0x1e4/0x540
[ 567.990659][ T9907] __x64_sys_mkdir+0x6c/0x80
[ 567.990679][ T9907] do_syscall_64+0xe2/0xf80
[ 567.990698][ T9907] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 567.990713][ T9907] ? trace_irq_disable+0x37/0x100
[ 567.990727][ T9907] ? clear_bhb_loop+0x60/0xb0
[ 567.990747][ T9907] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 567.990763][ T9907] RIP: 0033:0x7f818e1c82d7
[ 567.990780][ T9907] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 567.990794][ T9907] RSP: 002b:00007ffd039fb6b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 567.990811][ T9907] RAX: ffffffffffffffda RBX: 00007ffd039fb7e2 RCX: 00007f818e1c82d7
[ 567.990823][ T9907] RDX: 00000000122beea7 RSI: 00000000000001c0 RDI: 00007ffd039fb7d0
[ 567.990833][ T9907] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 567.990842][ T9907] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000122beea7
[ 567.990852][ T9907] R13: 00007ffd039fb7e2 R14: 0000000000000004 R15: 00007f818e255dc0
[ 567.990879][ T9907]
[ 568.311402][ T9907] CPU: 1 UID: 0 PID: 9907 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 568.311428][ T9907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 568.311438][ T9907] Call Trace:
[ 568.311446][ T9907]
[ 568.311452][ T9907] dump_stack_lvl+0xe8/0x150
[ 568.311477][ T9907] ext4_cache_extents+0x31a/0x340
[ 568.311497][ T9907] ? ext4_find_extent+0x2e3/0xa20
[ 568.311520][ T9907] ext4_find_extent+0x3a9/0xa20
[ 568.311546][ T9907] ext4_ext_map_blocks+0x283/0x5760
[ 568.311575][ T9907] ? rcu_is_watching+0x15/0xb0
[ 568.311598][ T9907] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 568.311619][ T9907] ? __lock_acquire+0x6b5/0x2cf0
[ 568.311647][ T9907] ? __lock_acquire+0x6b5/0x2cf0
[ 568.311672][ T9907] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 568.311697][ T9907] ? ext4_map_blocks+0x7b5/0x11d0
[ 568.311743][ T9907] ext4_map_create_blocks+0x11d/0x540
[ 568.311773][ T9907] ext4_map_blocks+0x7cd/0x11d0
[ 568.311804][ T9907] ? __pfx_ext4_map_blocks+0x10/0x10
[ 568.311841][ T9907] ext4_getblk+0x1ca/0x780
[ 568.311867][ T9907] ? __pfx_ext4_getblk+0x10/0x10
[ 568.311902][ T9907] ext4_bread+0x2a/0x180
[ 568.311924][ T9907] ext4_append+0x2ba/0x560
[ 568.311949][ T9907] ? __pfx_ext4_append+0x10/0x10
[ 568.311975][ T9907] ? set_nlink+0x5f/0x170
[ 568.311989][ T9907] ext4_init_new_dir+0x11f/0x1c0
[ 568.312009][ T9907] ext4_mkdir+0x49b/0xbf0
[ 568.312042][ T9907] ? __pfx_ext4_mkdir+0x10/0x10
[ 568.312067][ T9907] ? inode_permission+0x2fd/0x5f0
[ 568.312083][ T9907] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 568.312101][ T9907] vfs_mkdir+0x753/0x870
[ 568.312130][ T9907] do_mkdirat+0x27d/0x4b0
[ 568.312153][ T9907] ? __pfx_do_mkdirat+0x10/0x10
[ 568.312171][ T9907] ? strncpy_from_user+0x150/0x2b0
[ 568.312197][ T9907] ? getname_flags+0x1e4/0x540
[ 568.312218][ T9907] __x64_sys_mkdir+0x6c/0x80
[ 568.312238][ T9907] do_syscall_64+0xe2/0xf80
[ 568.312257][ T9907] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 568.312272][ T9907] ? trace_irq_disable+0x37/0x100
[ 568.312286][ T9907] ? clear_bhb_loop+0x60/0xb0
[ 568.312306][ T9907] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 568.312322][ T9907] RIP: 0033:0x7f818e1c82d7
[ 568.312339][ T9907] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 568.312353][ T9907] RSP: 002b:00007ffd039fb6b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 568.312370][ T9907] RAX: ffffffffffffffda RBX: 00007ffd039fb7e2 RCX: 00007f818e1c82d7
[ 568.312381][ T9907] RDX: 00000000122beea7 RSI: 00000000000001c0 RDI: 00007ffd039fb7d0
[ 568.312400][ T9907] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 568.312411][ T9907] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000122beea7
[ 568.312421][ T9907] R13: 00007ffd039fb7e2 R14: 0000000000000004 R15: 00007f818e255dc0
[ 568.312452][ T9907]
[ 568.634549][ T1967] netdevsim netdevsim2 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 568.649738][ T6376] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1
[ 568.661051][ T6376] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9
[ 568.669155][ T6376] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9
[ 568.672414][ T9865] team0: Port device team_slave_0 added
[ 568.692946][ T6376] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4
[ 568.702073][ T6376] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2
[ 568.741497][ T9865] team0: Port device team_slave_1 added
[ 568.757938][ T9887] bridge0: port 1(bridge_slave_0) entered blocking state
[ 568.766675][ T9887] bridge0: port 1(bridge_slave_0) entered disabled state
[ 568.775704][ T9887] bridge_slave_0: entered allmulticast mode
[ 568.784256][ T9887] bridge_slave_0: entered promiscuous mode
[ 568.835582][ T1967] netdevsim netdevsim2 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 568.849811][ T9887] bridge0: port 2(bridge_slave_1) entered blocking state
[ 568.858937][ T9887] bridge0: port 2(bridge_slave_1) entered disabled state
[ 568.868229][ T9887] bridge_slave_1: entered allmulticast mode
[ 568.882264][ T9887] bridge_slave_1: entered promiscuous mode
[ 568.897850][ T9814] netdevsim netdevsim7 netdevsim0: renamed from eth0
[ 568.910006][ T9865] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 568.920807][ T9865] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 568.952669][ T9865] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 568.961030][ T6377] Bluetooth: hci4: command tx timeout
[ 568.967142][ T6376] Bluetooth: hci2: command tx timeout
[ 568.984348][ T9865] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 568.992407][ T9865] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 569.024669][ T9865] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 569.062902][ T1531] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 569.073489][ T1531] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 569.081985][ T9814] netdevsim netdevsim7 netdevsim1: renamed from eth1
[ 569.100394][ T9814] netdevsim netdevsim7 netdevsim2: renamed from eth2
[ 569.112113][ T9814] netdevsim netdevsim7 netdevsim3: renamed from eth3
[ 569.125802][ T9887] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 569.147762][ T9887] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 569.227149][ T9887] team0: Port device team_slave_0 added
[ 569.239802][ T9887] team0: Port device team_slave_1 added
[ 569.265363][ T9865] hsr_slave_0: entered promiscuous mode
[ 569.272152][ T9865] hsr_slave_1: entered promiscuous mode
[ 569.279556][ T9865] debugfs: 'hsr0' already exists in 'hsr'
[ 569.288372][ T9865] Cannot create hsr debugfs directory
[ 569.328771][ T3548] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 569.342286][ T3548] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 569.384558][ T9887] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 569.394338][ T9887] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 569.422666][ T9887] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 569.447707][ T9539] CPU: 0 UID: 0 PID: 9539 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 569.447732][ T9539] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 569.447743][ T9539] Call Trace:
[ 569.447750][ T9539]
[ 569.447758][ T9539] dump_stack_lvl+0xe8/0x150
[ 569.447782][ T9539] ext4_cache_extents+0x31a/0x340
[ 569.447803][ T9539] ? ext4_find_extent+0x2e3/0xa20
[ 569.447827][ T9539] ext4_find_extent+0x3a9/0xa20
[ 569.447854][ T9539] ext4_ext_map_blocks+0x283/0x5760
[ 569.447888][ T9539] ? __lock_acquire+0x6b5/0x2cf0
[ 569.447918][ T9539] ? look_up_lock_class+0x57/0x110
[ 569.447939][ T9539] ? register_lock_class+0x31/0x2e0
[ 569.447963][ T9539] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 569.447996][ T9539] ? __lock_acquire+0x6b5/0x2cf0
[ 569.448039][ T9539] ext4_map_query_blocks+0x13b/0xa00
[ 569.448061][ T9539] ? ext4_map_blocks+0x42c/0x11d0
[ 569.448088][ T9539] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 569.448117][ T9539] ? down_read+0x272/0x2e0
[ 569.448134][ T9539] ? ext4_map_blocks+0x259/0x11d0
[ 569.448159][ T9539] ext4_map_blocks+0x444/0x11d0
[ 569.448193][ T9539] ? __pfx_ext4_map_blocks+0x10/0x10
[ 569.448230][ T9539] ext4_append+0x22e/0x560
[ 569.448257][ T9539] ? __pfx_ext4_append+0x10/0x10
[ 569.448286][ T9539] ? set_nlink+0x5f/0x170
[ 569.448305][ T9539] ext4_init_new_dir+0x11f/0x1c0
[ 569.448330][ T9539] ext4_mkdir+0x49b/0xbf0
[ 569.448367][ T9539] ? __pfx_ext4_mkdir+0x10/0x10
[ 569.448388][ T9539] ? inode_permission+0x2fd/0x5f0
[ 569.448403][ T9539] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 569.448422][ T9539] vfs_mkdir+0x753/0x870
[ 569.448451][ T9539] do_mkdirat+0x27d/0x4b0
[ 569.448477][ T9539] ? __pfx_do_mkdirat+0x10/0x10
[ 569.448502][ T9539] ? getname_flags+0x1e4/0x540
[ 569.448521][ T9539] __x64_sys_mkdirat+0x87/0xa0
[ 569.448543][ T9539] do_syscall_64+0xe2/0xf80
[ 569.448562][ T9539] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 569.448578][ T9539] ? clear_bhb_loop+0x60/0xb0
[ 569.448598][ T9539] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 569.448613][ T9539] RIP: 0033:0x7ff4d8d99d97
[ 569.448628][ T9539] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 569.448643][ T9539] RSP: 002b:00007fffa85869f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 569.448659][ T9539] RAX: ffffffffffffffda RBX: 00007ff4d8e05adc RCX: 00007ff4d8d99d97
[ 569.448671][ T9539] RDX: 00000000000001ff RSI: 00007ff4d8e05adc RDI: 00000000ffffff9c
[ 569.448682][ T9539] RBP: 00007fffa8586a80 R08: 0000000000000000 R09: 0000000000000000
[ 569.448693][ T9539] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffa8586a88
[ 569.448703][ T9539] R13: 0000000000000002 R14: 00007fffa8586c68 R15: 0000000000000000
[ 569.448732][ T9539]
[ 569.448797][ T9539] CPU: 0 UID: 0 PID: 9539 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 569.448814][ T9539] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 569.448823][ T9539] Call Trace:
[ 569.448830][ T9539]
[ 569.448836][ T9539] dump_stack_lvl+0xe8/0x150
[ 569.448856][ T9539] ext4_cache_extents+0x31a/0x340
[ 569.448873][ T9539] ? ext4_find_extent+0x2e3/0xa20
[ 569.448897][ T9539] ext4_find_extent+0x3a9/0xa20
[ 569.448921][ T9539] ext4_ext_map_blocks+0x283/0x5760
[ 569.448961][ T9539] ? rcu_is_watching+0x15/0xb0
[ 569.449004][ T9539] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 569.449026][ T9539] ? __lock_acquire+0x6b5/0x2cf0
[ 569.449053][ T9539] ? __lock_acquire+0x6b5/0x2cf0
[ 569.449078][ T9539] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 569.449104][ T9539] ? ext4_map_blocks+0x7b5/0x11d0
[ 569.449145][ T9539] ext4_map_create_blocks+0x11d/0x540
[ 569.449175][ T9539] ext4_map_blocks+0x7cd/0x11d0
[ 569.449209][ T9539] ? __pfx_ext4_map_blocks+0x10/0x10
[ 569.449246][ T9539] ext4_getblk+0x1ca/0x780
[ 569.449274][ T9539] ? __pfx_ext4_getblk+0x10/0x10
[ 569.449310][ T9539] ext4_bread+0x2a/0x180
[ 569.449334][ T9539] ext4_append+0x2ba/0x560
[ 569.449360][ T9539] ? __pfx_ext4_append+0x10/0x10
[ 569.449389][ T9539] ? set_nlink+0x5f/0x170
[ 569.449407][ T9539] ext4_init_new_dir+0x11f/0x1c0
[ 569.449432][ T9539] ext4_mkdir+0x49b/0xbf0
[ 569.449466][ T9539] ? __pfx_ext4_mkdir+0x10/0x10
[ 569.449491][ T9539] ? inode_permission+0x2fd/0x5f0
[ 569.449508][ T9539] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 569.449527][ T9539] vfs_mkdir+0x753/0x870
[ 569.449556][ T9539] do_mkdirat+0x27d/0x4b0
[ 569.449583][ T9539] ? __pfx_do_mkdirat+0x10/0x10
[ 569.449607][ T9539] ? getname_flags+0x1e4/0x540
[ 569.449628][ T9539] __x64_sys_mkdirat+0x87/0xa0
[ 569.449650][ T9539] do_syscall_64+0xe2/0xf80
[ 569.449668][ T9539] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 569.449684][ T9539] ? clear_bhb_loop+0x60/0xb0
[ 569.449703][ T9539] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 569.449717][ T9539] RIP: 0033:0x7ff4d8d99d97
[ 569.449730][ T9539] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 569.449744][ T9539] RSP: 002b:00007fffa85869f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 569.449759][ T9539] RAX: ffffffffffffffda RBX: 00007ff4d8e05adc RCX: 00007ff4d8d99d97
[ 569.449768][ T9539] RDX: 00000000000001ff RSI: 00007ff4d8e05adc RDI: 00000000ffffff9c
[ 569.449778][ T9539] RBP: 00007fffa8586a80 R08: 0000000000000000 R09: 0000000000000000
[ 569.449786][ T9539] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffa8586a88
[ 569.449796][ T9539] R13: 0000000000000002 R14: 00007fffa8586c68 R15: 0000000000000000
[ 569.449824][ T9539]
[ 569.564766][ T9887] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 570.059799][ T9887] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 570.092073][ T9887] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 570.172624][ T9919] loop3: detected capacity change from 0 to 1024
[ 570.241391][ T9919] EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 570.282358][ T9922] EXT4-fs warning (device loop3): ext4_cache_extents:532: inode #2: comm syz.3.181: ext4_cache_extents: caching extents
[ 570.282358][ T9922]
[ 570.283480][ T1967] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 570.298471][ T9922] EXT4-fs warning (device loop3): ext4_es_cache_extent:1045: inode #2: comm syz.3.181: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 570.298471][ T9922]
[ 570.329217][ T9922] EXT4-fs warning (device loop3): __es_insert_extent:852: inode #2: comm syz.3.181: __es_insert_extent: add [0, 0, 16, 0x1]
[ 570.329217][ T9922]
[ 570.347724][ T9922] EXT4-fs warning (device loop3): ext4_es_cache_extent:1045: inode #2: comm syz.3.181: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 570.347724][ T9922]
[ 570.369735][ T9922] EXT4-fs warning (device loop3): ext4_es_remove_extent:1657: inode #18: comm syz.3.181: ext4_es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 570.369735][ T9922]
[ 570.386478][ T9887] hsr_slave_0: entered promiscuous mode
[ 570.399933][ T9887] hsr_slave_1: entered promiscuous mode
[ 570.406933][ T9887] debugfs: 'hsr0' already exists in 'hsr'
[ 570.413135][ T9922] EXT4-fs warning (device loop3): __es_remove_extent:1512: inode #18: comm syz.3.181: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 570.413135][ T9922]
[ 570.413170][ T9922] EXT4-fs warning (device loop3): ext4_ext_remove_space:2857: inode #18: comm syz.3.181: ext4_ext_remove_space: remove range [0, -2] from extent tree
[ 570.413170][ T9922]
[ 570.413786][ T9922] EXT4-fs warning (device loop3): ext4_cache_extents:532: inode #18: comm syz.3.181: ext4_cache_extents: caching extents
[ 570.413786][ T9922]
[ 570.413814][ T9922] EXT4-fs warning (device loop3): ext4_es_cache_extent:1045: inode #18: comm syz.3.181: ext4_es_cache_extent: cache extent lblk:0 len:-1 pblk:-1 status:0x8
[ 570.413814][ T9922]
[ 570.413839][ T9922] EXT4-fs warning (device loop3): __es_insert_extent:852: inode #18: comm syz.3.181: __es_insert_extent: add [0, -2, 576460752303423487, 0x8]
[ 570.413839][ T9922]
[ 570.507742][ T9887] Cannot create hsr debugfs directory
[ 570.556613][ T1967] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 570.686432][ T1967] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 570.701987][ T9909] chnl_net:caif_netlink_parms(): no params data found
[ 570.726382][ T6376] Bluetooth: hci3: command tx timeout
[ 570.823140][ T9922] EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[ 570.843750][ T1967] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 570.895627][ T9927] CPU: 0 UID: 0 PID: 9927 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 570.895645][ T9927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 570.895651][ T9927] Call Trace:
[ 570.895656][ T9927]
[ 570.895661][ T9927] dump_stack_lvl+0xe8/0x150
[ 570.895678][ T9927] ext4_cache_extents+0x31a/0x340
[ 570.895690][ T9927] ? ext4_find_extent+0x2e3/0xa20
[ 570.895704][ T9927] ext4_find_extent+0x3a9/0xa20
[ 570.895720][ T9927] ext4_ext_map_blocks+0x283/0x5760
[ 570.895738][ T9927] ? __lock_acquire+0x6b5/0x2cf0
[ 570.895757][ T9927] ? look_up_lock_class+0x57/0x110
[ 570.895771][ T9927] ? register_lock_class+0x31/0x2e0
[ 570.895785][ T9927] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 570.895799][ T9927] ? __lock_acquire+0x6b5/0x2cf0
[ 570.895823][ T9927] ext4_map_query_blocks+0x13b/0xa00
[ 570.895837][ T9927] ? ext4_map_blocks+0x42c/0x11d0
[ 570.895861][ T9927] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 570.895879][ T9927] ? down_read+0x272/0x2e0
[ 570.895892][ T9927] ? ext4_map_blocks+0x259/0x11d0
[ 570.895907][ T9927] ext4_map_blocks+0x444/0x11d0
[ 570.895927][ T9927] ? __pfx_ext4_map_blocks+0x10/0x10
[ 570.895949][ T9927] ext4_append+0x22e/0x560
[ 570.895966][ T9927] ? __pfx_ext4_append+0x10/0x10
[ 570.895982][ T9927] ? set_nlink+0x5f/0x170
[ 570.895993][ T9927] ext4_init_new_dir+0x11f/0x1c0
[ 570.896008][ T9927] ext4_mkdir+0x49b/0xbf0
[ 570.896028][ T9927] ? __pfx_ext4_mkdir+0x10/0x10
[ 570.896044][ T9927] ? inode_permission+0x2fd/0x5f0
[ 570.896054][ T9927] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 570.896065][ T9927] vfs_mkdir+0x753/0x870
[ 570.896083][ T9927] do_mkdirat+0x27d/0x4b0
[ 570.896098][ T9927] ? __pfx_do_mkdirat+0x10/0x10
[ 570.896112][ T9927] ? strncpy_from_user+0x150/0x2b0
[ 570.896129][ T9927] ? getname_flags+0x1e4/0x540
[ 570.896141][ T9927] __x64_sys_mkdir+0x6c/0x80
[ 570.896154][ T9927] do_syscall_64+0xe2/0xf80
[ 570.896166][ T9927] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 570.896175][ T9927] ? trace_irq_disable+0x37/0x100
[ 570.896184][ T9927] ? clear_bhb_loop+0x60/0xb0
[ 570.896195][ T9927] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 570.896204][ T9927] RIP: 0033:0x7f9813fc82d7
[ 570.896214][ T9927] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 570.896222][ T9927] RSP: 002b:00007ffe19f66498 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 570.896233][ T9927] RAX: ffffffffffffffda RBX: 00007ffe19f665c2 RCX: 00007f9813fc82d7
[ 570.896239][ T9927] RDX: 0000000006a401a8 RSI: 00000000000001c0 RDI: 00007ffe19f665b0
[ 570.896246][ T9927] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 570.896252][ T9927] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000006a401a8
[ 570.896258][ T9927] R13: 00007ffe19f665c2 R14: 0000000000000004 R15: 00007f9814055dc0
[ 570.896273][ T9927]
[ 570.896314][ T9927] CPU: 0 UID: 0 PID: 9927 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 570.896324][ T9927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 570.896329][ T9927] Call Trace:
[ 570.896333][ T9927]
[ 570.896337][ T9927] dump_stack_lvl+0xe8/0x150
[ 570.896348][ T9927] ext4_cache_extents+0x31a/0x340
[ 570.896360][ T9927] ? ext4_find_extent+0x2e3/0xa20
[ 570.896373][ T9927] ext4_find_extent+0x3a9/0xa20
[ 570.896389][ T9927] ext4_ext_map_blocks+0x283/0x5760
[ 570.896406][ T9927] ? rcu_is_watching+0x15/0xb0
[ 570.896421][ T9927] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 570.896434][ T9927] ? __lock_acquire+0x6b5/0x2cf0
[ 570.896451][ T9927] ? __lock_acquire+0x6b5/0x2cf0
[ 570.896466][ T9927] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 570.896480][ T9927] ? ext4_map_blocks+0x7b5/0x11d0
[ 570.896522][ T9927] ext4_map_create_blocks+0x11d/0x540
[ 570.896540][ T9927] ext4_map_blocks+0x7cd/0x11d0
[ 570.896560][ T9927] ? __pfx_ext4_map_blocks+0x10/0x10
[ 570.896582][ T9927] ext4_getblk+0x1ca/0x780
[ 570.896599][ T9927] ? __pfx_ext4_getblk+0x10/0x10
[ 570.896621][ T9927] ext4_bread+0x2a/0x180
[ 570.896636][ T9927] ext4_append+0x2ba/0x560
[ 570.896652][ T9927] ? __pfx_ext4_append+0x10/0x10
[ 570.896669][ T9927] ? set_nlink+0x5f/0x170
[ 570.896679][ T9927] ext4_init_new_dir+0x11f/0x1c0
[ 570.896694][ T9927] ext4_mkdir+0x49b/0xbf0
[ 570.896714][ T9927] ? __pfx_ext4_mkdir+0x10/0x10
[ 570.896733][ T9927] ? inode_permission+0x2fd/0x5f0
[ 570.896743][ T9927] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 570.896754][ T9927] vfs_mkdir+0x753/0x870
[ 570.896770][ T9927] do_mkdirat+0x27d/0x4b0
[ 570.896786][ T9927] ? __pfx_do_mkdirat+0x10/0x10
[ 570.896798][ T9927] ? strncpy_from_user+0x150/0x2b0
[ 570.896814][ T9927] ? getname_flags+0x1e4/0x540
[ 570.896826][ T9927] __x64_sys_mkdir+0x6c/0x80
[ 570.896839][ T9927] do_syscall_64+0xe2/0xf80
[ 570.896856][ T9927] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 570.896868][ T9927] ? trace_irq_disable+0x37/0x100
[ 570.896878][ T9927] ? clear_bhb_loop+0x60/0xb0
[ 570.896889][ T9927] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 570.896898][ T9927] RIP: 0033:0x7f9813fc82d7
[ 570.896906][ T9927] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 570.896914][ T9927] RSP: 002b:00007ffe19f66498 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 570.896923][ T9927] RAX: ffffffffffffffda RBX: 00007ffe19f665c2 RCX: 00007f9813fc82d7
[ 570.896930][ T9927] RDX: 0000000006a401a8 RSI: 00000000000001c0 RDI: 00007ffe19f665b0
[ 570.896936][ T9927] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 570.896941][ T9927] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000006a401a8
[ 570.896947][ T9927] R13: 00007ffe19f665c2 R14: 0000000000000004 R15: 00007f9814055dc0
[ 570.896962][ T9927]
[ 571.060801][ T6376] Bluetooth: hci2: command tx timeout
[ 571.062730][ T6377] Bluetooth: hci4: command tx timeout
[ 571.168508][ T6375] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 571.534723][ T6375] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 571.545413][ T6375] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 571.557454][ T6375] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 571.570993][ T6375] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 571.658091][ T9909] bridge0: port 1(bridge_slave_0) entered blocking state
[ 571.665693][ T9909] bridge0: port 1(bridge_slave_0) entered disabled state
[ 571.673381][ T9909] bridge_slave_0: entered allmulticast mode
[ 571.681344][ T9909] bridge_slave_0: entered promiscuous mode
[ 571.725166][ T9909] bridge0: port 2(bridge_slave_1) entered blocking state
[ 571.733450][ T9909] bridge0: port 2(bridge_slave_1) entered disabled state
[ 571.743004][ T9909] bridge_slave_1: entered allmulticast mode
[ 571.753470][ T9909] bridge_slave_1: entered promiscuous mode
[ 571.879175][ T9909] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 571.917071][ T9909] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 571.949175][ T1967] bridge_slave_1: left allmulticast mode
[ 571.955888][ T1967] bridge_slave_1: left promiscuous mode
[ 571.967792][ T1967] bridge0: port 2(bridge_slave_1) entered disabled state
[ 571.977826][ T1967] bridge_slave_0: left allmulticast mode
[ 571.984592][ T1967] bridge_slave_0: left promiscuous mode
[ 571.990678][ T1967] bridge0: port 1(bridge_slave_0) entered disabled state
[ 572.009430][ T1967] bridge_slave_1: left allmulticast mode
[ 572.015393][ T1967] bridge_slave_1: left promiscuous mode
[ 572.022231][ T1967] bridge0: port 2(bridge_slave_1) entered disabled state
[ 572.032085][ T1967] bridge_slave_0: left allmulticast mode
[ 572.038190][ T1967] bridge_slave_0: left promiscuous mode
[ 572.045344][ T1967] bridge0: port 1(bridge_slave_0) entered disabled state
[ 572.358393][ T1967] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 572.369834][ T1967] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 572.381992][ T1967] bond0 (unregistering): Released all slaves
[ 572.628063][ T1967] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 572.639002][ T1967] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 572.649824][ T1967] bond0 (unregistering): Released all slaves
[ 572.706572][ T9909] team0: Port device team_slave_0 added
[ 572.774934][ T9909] team0: Port device team_slave_1 added
[ 572.801226][ T6376] Bluetooth: hci3: command tx timeout
[ 572.854223][ T9909] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 572.861839][ T9909] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 572.891824][ T9909] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 572.911026][ T9909] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 572.919748][ T9909] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 572.951642][ T9909] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 573.120917][ T6376] Bluetooth: hci2: command tx timeout
[ 573.154141][ T9909] hsr_slave_0: entered promiscuous mode
[ 573.161769][ T9909] hsr_slave_1: entered promiscuous mode
[ 573.168442][ T9909] debugfs: 'hsr0' already exists in 'hsr'
[ 573.176373][ T9909] Cannot create hsr debugfs directory
[ 573.205718][ T9814] 8021q: adding VLAN 0 to HW filter on device bond0
[ 573.303536][ T9929] chnl_net:caif_netlink_parms(): no params data found
[ 573.433808][ T1967] hsr_slave_0: left promiscuous mode
[ 573.439916][ T1967] hsr_slave_1: left promiscuous mode
[ 573.448408][ T1967] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 573.456369][ T1967] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 573.464615][ T1967] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 573.473143][ T1967] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 573.485474][ T1967] hsr_slave_0: left promiscuous mode
[ 573.492493][ T1967] hsr_slave_1: left promiscuous mode
[ 573.498988][ T1967] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 573.506938][ T1967] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 573.516819][ T1967] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 573.526783][ T1967] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 573.551844][ T1967] veth1_macvtap: left promiscuous mode
[ 573.557670][ T1967] veth0_macvtap: left promiscuous mode
[ 573.564074][ T1967] veth1_vlan: left promiscuous mode
[ 573.570064][ T1967] veth0_vlan: left promiscuous mode
[ 573.576764][ T1967] veth1_macvtap: left promiscuous mode
[ 573.583149][ T1967] veth0_macvtap: left promiscuous mode
[ 573.589844][ T1967] veth1_vlan: left promiscuous mode
[ 573.595965][ T1967] veth0_vlan: left promiscuous mode
[ 573.601740][ T6376] Bluetooth: hci0: command tx timeout
[ 574.116509][ T1967] team0 (unregistering): Port device team_slave_1 removed
[ 574.158633][ T1967] team0 (unregistering): Port device team_slave_0 removed
[ 574.882367][ T6376] Bluetooth: hci3: command tx timeout
[ 574.889880][ T1967] team0 (unregistering): Port device team_slave_1 removed
[ 574.932803][ T1967] team0 (unregistering): Port device team_slave_0 removed
[ 575.349852][ T9887] netdevsim netdevsim6 netdevsim0: renamed from eth0
[ 575.365449][ T9814] 8021q: adding VLAN 0 to HW filter on device team0
[ 575.416789][ T9929] bridge0: port 1(bridge_slave_0) entered blocking state
[ 575.425312][ T9929] bridge0: port 1(bridge_slave_0) entered disabled state
[ 575.433675][ T9929] bridge_slave_0: entered allmulticast mode
[ 575.442869][ T9929] bridge_slave_0: entered promiscuous mode
[ 575.450094][ T9887] netdevsim netdevsim6 netdevsim1: renamed from eth1
[ 575.475562][ T9929] bridge0: port 2(bridge_slave_1) entered blocking state
[ 575.483601][ T9929] bridge0: port 2(bridge_slave_1) entered disabled state
[ 575.498822][ T9929] bridge_slave_1: entered allmulticast mode
[ 575.508335][ T9929] bridge_slave_1: entered promiscuous mode
[ 575.517318][ T12] bridge0: port 1(bridge_slave_0) entered blocking state
[ 575.525626][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 575.547477][ T9887] netdevsim netdevsim6 netdevsim2: renamed from eth2
[ 575.558956][ T9887] netdevsim netdevsim6 netdevsim3: renamed from eth3
[ 575.580290][ T12] bridge0: port 2(bridge_slave_1) entered blocking state
[ 575.588995][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 575.646658][ T9929] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 575.660487][ T9929] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 575.681912][ T6376] Bluetooth: hci0: command tx timeout
[ 575.720847][ T9929] team0: Port device team_slave_0 added
[ 575.762474][ T9929] team0: Port device team_slave_1 added
[ 575.812074][ T9865] netdevsim netdevsim8 netdevsim0: renamed from eth0
[ 575.873959][ T9865] netdevsim netdevsim8 netdevsim1: renamed from eth1
[ 575.886536][ T9929] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 575.901183][ T9929] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 575.941394][ T9929] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 575.966571][ T9865] netdevsim netdevsim8 netdevsim2: renamed from eth2
[ 576.023469][ T9929] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 576.031970][ T9929] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 576.062222][ T9929] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 576.078690][ T9865] netdevsim netdevsim8 netdevsim3: renamed from eth3
[ 576.191349][ T9929] hsr_slave_0: entered promiscuous mode
[ 576.198648][ T9929] hsr_slave_1: entered promiscuous mode
[ 576.205980][ T9929] debugfs: 'hsr0' already exists in 'hsr'
[ 576.219804][ T9929] Cannot create hsr debugfs directory
[ 576.390232][ T1967] netdevsim netdevsim3 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 576.509545][ T1967] netdevsim netdevsim3 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 576.622358][ T1967] netdevsim netdevsim3 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 576.655546][ T9814] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 576.664811][ T9909] netdevsim netdevsim9 netdevsim0: renamed from eth0
[ 576.724198][ T9887] 8021q: adding VLAN 0 to HW filter on device bond0
[ 576.733446][ T9909] netdevsim netdevsim9 netdevsim1: renamed from eth1
[ 576.773211][ T1967] netdevsim netdevsim3 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 576.789524][ T9909] netdevsim netdevsim9 netdevsim2: renamed from eth2
[ 576.819550][ T9909] netdevsim netdevsim9 netdevsim3: renamed from eth3
[ 576.942646][ T9887] 8021q: adding VLAN 0 to HW filter on device team0
[ 576.961759][ T6376] Bluetooth: hci3: command tx timeout
[ 577.006762][ T9865] 8021q: adding VLAN 0 to HW filter on device bond0
[ 577.042939][ T3548] bridge0: port 1(bridge_slave_0) entered blocking state
[ 577.050151][ T3548] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 577.113726][ T1967] netdevsim netdevsim5 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 577.158862][ T9045] bridge0: port 2(bridge_slave_1) entered blocking state
[ 577.166545][ T9045] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 577.198541][ T9865] 8021q: adding VLAN 0 to HW filter on device team0
[ 577.224057][ T1967] netdevsim netdevsim5 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 577.257972][ T145] bridge0: port 1(bridge_slave_0) entered blocking state
[ 577.265340][ T145] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 577.305663][ T145] bridge0: port 2(bridge_slave_1) entered blocking state
[ 577.313274][ T145] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 577.349562][ T1967] netdevsim netdevsim5 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 577.432661][ T1967] netdevsim netdevsim5 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 577.458201][ T9929] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 577.468627][ T9929] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 577.485732][ T9929] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 577.502935][ T9929] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 577.536052][ T9814] veth0_vlan: entered promiscuous mode
[ 577.555150][ T9814] veth1_vlan: entered promiscuous mode
[ 577.760922][ T6376] Bluetooth: hci0: command tx timeout
[ 577.817629][ T1967] bridge_slave_1: left allmulticast mode
[ 577.823964][ T1967] bridge_slave_1: left promiscuous mode
[ 577.830645][ T1967] bridge0: port 2(bridge_slave_1) entered disabled state
[ 577.847894][ T1967] bridge_slave_0: left allmulticast mode
[ 577.854349][ T1967] bridge_slave_0: left promiscuous mode
[ 577.860226][ T1967] bridge0: port 1(bridge_slave_0) entered disabled state
[ 577.875561][ T1967] bridge_slave_1: left allmulticast mode
[ 577.883390][ T1967] bridge_slave_1: left promiscuous mode
[ 577.890103][ T1967] bridge0: port 2(bridge_slave_1) entered disabled state
[ 577.899632][ T1967] bridge_slave_0: left allmulticast mode
[ 577.907804][ T1967] bridge_slave_0: left promiscuous mode
[ 577.914160][ T1967] bridge0: port 1(bridge_slave_0) entered disabled state
[ 578.208489][ T1967] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 578.219873][ T1967] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 578.233656][ T1967] bond0 (unregistering): Released all slaves
[ 578.455719][ T1967] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 578.468567][ T1967] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 578.479886][ T1967] bond0 (unregistering): Released all slaves
[ 578.504445][ T9814] veth0_macvtap: entered promiscuous mode
[ 578.519389][ T9909] 8021q: adding VLAN 0 to HW filter on device bond0
[ 578.545561][ T9887] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 578.614570][ T9814] veth1_macvtap: entered promiscuous mode
[ 578.646810][ T1302] ieee802154 phy0 wpan0: encryption failed: -22
[ 578.655320][ T1302] ieee802154 phy1 wpan1: encryption failed: -22
[ 578.739476][ T9909] 8021q: adding VLAN 0 to HW filter on device team0
[ 578.768700][ T9814] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 578.849835][ T9147] bridge0: port 1(bridge_slave_0) entered blocking state
[ 578.857762][ T9147] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 578.903584][ T9865] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 578.961054][ T9814] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 578.975618][ T9147] bridge0: port 2(bridge_slave_1) entered blocking state
[ 578.983074][ T9147] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 579.088273][ T145] netdevsim netdevsim7 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 579.108987][ T145] netdevsim netdevsim7 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 579.129895][ T145] netdevsim netdevsim7 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 579.175432][ T145] netdevsim netdevsim7 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 579.208753][ T1967] hsr_slave_0: left promiscuous mode
[ 579.216268][ T1967] hsr_slave_1: left promiscuous mode
[ 579.226801][ T1967] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 579.234996][ T1967] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 579.243848][ T1967] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 579.251943][ T1967] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 579.264373][ T1967] hsr_slave_0: left promiscuous mode
[ 579.271393][ T1967] hsr_slave_1: left promiscuous mode
[ 579.278334][ T1967] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 579.286970][ T1967] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 579.296187][ T1967] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 579.304322][ T1967] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 579.328840][ T1967] veth1_macvtap: left promiscuous mode
[ 579.335865][ T1967] veth0_macvtap: left promiscuous mode
[ 579.342604][ T1967] veth1_vlan: left promiscuous mode
[ 579.349504][ T1967] veth0_vlan: left promiscuous mode
[ 579.357465][ T1967] veth1_macvtap: left promiscuous mode
[ 579.364879][ T1967] veth0_macvtap: left promiscuous mode
[ 579.371532][ T1967] veth1_vlan: left promiscuous mode
[ 579.377994][ T1967] veth0_vlan: left promiscuous mode
[ 579.841661][ T6376] Bluetooth: hci0: command tx timeout
[ 579.912936][ T1967] team0 (unregistering): Port device team_slave_1 removed
[ 579.956634][ T1967] team0 (unregistering): Port device team_slave_0 removed
[ 580.705012][ T1967] team0 (unregistering): Port device team_slave_1 removed
[ 580.745422][ T1967] team0 (unregistering): Port device team_slave_0 removed
[ 581.153154][ T9909] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[ 581.185876][ T9929] 8021q: adding VLAN 0 to HW filter on device bond0
[ 581.261856][ T6753] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 581.282187][ T6753] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 581.305980][ T9887] veth0_vlan: entered promiscuous mode
[ 581.389201][ T9929] 8021q: adding VLAN 0 to HW filter on device team0
[ 581.408670][ T9887] veth1_vlan: entered promiscuous mode
[ 581.433175][ T9865] veth0_vlan: entered promiscuous mode
[ 581.474585][ T6885] bridge0: port 1(bridge_slave_0) entered blocking state
[ 581.481496][ T3548] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 581.482548][ T6885] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 581.503569][ T3548] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 581.557237][ T9814] EXT4-fs warning: 34 callbacks suppressed
[ 581.557256][ T9814] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2226: comm syz-executor: ext4_cache_extents: caching extents
[ 581.557256][ T9814]
[ 581.587379][ T9814] CPU: 1 UID: 0 PID: 9814 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 581.587403][ T9814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 581.587412][ T9814] Call Trace:
[ 581.587420][ T9814]
[ 581.587427][ T9814] dump_stack_lvl+0xe8/0x150
[ 581.587451][ T9814] ext4_cache_extents+0x31a/0x340
[ 581.587463][ T6885] bridge0: port 2(bridge_slave_1) entered blocking state
[ 581.587470][ T9814] ? ext4_find_extent+0x2e3/0xa20
[ 581.587492][ T9814] ext4_find_extent+0x3a9/0xa20
[ 581.587513][ T9814] ext4_ext_map_blocks+0x283/0x5760
[ 581.587542][ T9814] ? __lock_acquire+0x6b5/0x2cf0
[ 581.587573][ T9814] ? look_up_lock_class+0x57/0x110
[ 581.587593][ T9814] ? register_lock_class+0x31/0x2e0
[ 581.587616][ T9814] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 581.587637][ T9814] ? __lock_acquire+0x6b5/0x2cf0
[ 581.587687][ T9814] ext4_map_query_blocks+0x13b/0xa00
[ 581.587709][ T9814] ? ext4_map_blocks+0x42c/0x11d0
[ 581.587736][ T9814] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 581.587764][ T9814] ? down_read+0x272/0x2e0
[ 581.587791][ T9814] ? ext4_map_blocks+0x259/0x11d0
[ 581.587814][ T9814] ext4_map_blocks+0x444/0x11d0
[ 581.587846][ T9814] ? __pfx_ext4_map_blocks+0x10/0x10
[ 581.587884][ T9814] ext4_append+0x22e/0x560
[ 581.587910][ T9814] ? __pfx_ext4_append+0x10/0x10
[ 581.587937][ T9814] ? set_nlink+0x5f/0x170
[ 581.587954][ T9814] ext4_init_new_dir+0x11f/0x1c0
[ 581.587978][ T9814] ext4_mkdir+0x49b/0xbf0
[ 581.588010][ T9814] ? __pfx_ext4_mkdir+0x10/0x10
[ 581.588034][ T9814] ? inode_permission+0x2fd/0x5f0
[ 581.588050][ T9814] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 581.588069][ T9814] vfs_mkdir+0x753/0x870
[ 581.588096][ T9814] do_mkdirat+0x27d/0x4b0
[ 581.588121][ T9814] ? __pfx_do_mkdirat+0x10/0x10
[ 581.588144][ T9814] ? getname_flags+0x1e4/0x540
[ 581.588163][ T9814] __x64_sys_mkdirat+0x87/0xa0
[ 581.588185][ T9814] do_syscall_64+0xe2/0xf80
[ 581.588203][ T9814] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 581.588218][ T9814] ? clear_bhb_loop+0x60/0xb0
[ 581.588237][ T9814] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 581.588252][ T9814] RIP: 0033:0x7f49b1399d97
[ 581.588267][ T9814] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 581.588280][ T9814] RSP: 002b:00007ffdc3b4d2e8 EFLAGS: 00000202 ORIG_RAX: 0000000000000102
[ 581.588298][ T9814] RAX: ffffffffffffffda RBX: 00007f49b1405adc RCX: 00007f49b1399d97
[ 581.588309][ T9814] RDX: 00000000000001ff RSI: 00007f49b1405adc RDI: 00000000ffffff9c
[ 581.588320][ T9814] RBP: 00007ffdc3b4d370 R08: 0000000000000000 R09: 0000000000000000
[ 581.588329][ T9814] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdc3b4d378
[ 581.588338][ T9814] R13: 0000000000000002 R14: 00007ffdc3b4d558 R15: 0000000000000000
[ 581.588366][ T9814]
[ 581.588378][ T9814] EXT4-fs warning (device sda1): ext4_es_cache_extent:1045: inode #2226: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:-1 pblk:-1 status:0x8
[ 581.588378][ T9814]
[ 581.598322][ T6885] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 581.637088][ T9929] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network
[ 581.640988][ T9814] EXT4-fs warning (device sda1): __es_insert_extent:852: inode #2226: comm syz-executor: __es_insert_extent: add [0, -2, 576460752303423487, 0x8]
[ 581.640988][ T9814]
[ 581.646600][ T9929] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[ 581.652760][ T9814] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2226: comm syz-executor: ext4_cache_extents: caching extents
[ 581.652760][ T9814]
[ 581.663675][ T9865] veth1_vlan: entered promiscuous mode
[ 581.677617][ T9814] CPU: 1 UID: 0 PID: 9814 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 581.677642][ T9814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 581.677652][ T9814] Call Trace:
[ 581.677660][ T9814]
[ 581.677667][ T9814] dump_stack_lvl+0xe8/0x150
[ 581.677691][ T9814] ext4_cache_extents+0x31a/0x340
[ 581.677711][ T9814] ? ext4_find_extent+0x2e3/0xa20
[ 581.677733][ T9814] ext4_find_extent+0x3a9/0xa20
[ 581.677759][ T9814] ext4_ext_map_blocks+0x283/0x5760
[ 581.677787][ T9814] ? rcu_is_watching+0x15/0xb0
[ 581.677809][ T9814] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 581.677831][ T9814] ? __lock_acquire+0x6b5/0x2cf0
[ 581.677857][ T9814] ? __lock_acquire+0x6b5/0x2cf0
[ 581.677882][ T9814] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 581.677907][ T9814] ? ext4_map_blocks+0x7b5/0x11d0
[ 581.677949][ T9814] ext4_map_create_blocks+0x11d/0x540
[ 581.677979][ T9814] ext4_map_blocks+0x7cd/0x11d0
[ 581.678012][ T9814] ? __pfx_ext4_map_blocks+0x10/0x10
[ 581.678055][ T9814] ext4_getblk+0x1ca/0x780
[ 581.678082][ T9814] ? __pfx_ext4_getblk+0x10/0x10
[ 581.678118][ T9814] ext4_bread+0x2a/0x180
[ 581.678140][ T9814] ext4_append+0x2ba/0x560
[ 581.678167][ T9814] ? __pfx_ext4_append+0x10/0x10
[ 581.678194][ T9814] ? set_nlink+0x5f/0x170
[ 581.678211][ T9814] ext4_init_new_dir+0x11f/0x1c0
[ 581.678236][ T9814] ext4_mkdir+0x49b/0xbf0
[ 581.678268][ T9814] ? __pfx_ext4_mkdir+0x10/0x10
[ 581.678292][ T9814] ? inode_permission+0x2fd/0x5f0
[ 581.678309][ T9814] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 581.678327][ T9814] vfs_mkdir+0x753/0x870
[ 581.678355][ T9814] do_mkdirat+0x27d/0x4b0
[ 581.678380][ T9814] ? __pfx_do_mkdirat+0x10/0x10
[ 581.678403][ T9814] ? getname_flags+0x1e4/0x540
[ 581.678423][ T9814] __x64_sys_mkdirat+0x87/0xa0
[ 581.678445][ T9814] do_syscall_64+0xe2/0xf80
[ 581.678463][ T9814] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 581.678479][ T9814] ? clear_bhb_loop+0x60/0xb0
[ 581.678498][ T9814] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 581.678513][ T9814] RIP: 0033:0x7f49b1399d97
[ 581.678529][ T9814] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 581.678544][ T9814] RSP: 002b:00007ffdc3b4d2e8 EFLAGS: 00000202 ORIG_RAX: 0000000000000102
[ 581.678561][ T9814] RAX: ffffffffffffffda RBX: 00007f49b1405adc RCX: 00007f49b1399d97
[ 581.678572][ T9814] RDX: 00000000000001ff RSI: 00007f49b1405adc RDI: 00000000ffffff9c
[ 581.678583][ T9814] RBP: 00007ffdc3b4d370 R08: 0000000000000000 R09: 0000000000000000
[ 581.678608][ T9814] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdc3b4d378
[ 581.678618][ T9814] R13: 0000000000000002 R14: 00007ffdc3b4d558 R15: 0000000000000000
[ 581.678645][ T9814]
[ 581.678659][ T9814] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6274: inode #2226: comm syz-executor: ext4_mb_new_blocks: Allocation requested for: [0, 0]
[ 581.678659][ T9814]
[ 581.760103][ T9909] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 581.770897][ T9814] EXT4-fs warning (device sda1): ext4_mb_regular_allocator:3120: inode #2226: comm syz-executor: ext4_mb_regular_allocator: Best len 1, origin len 1, ac_status 2, ac_flags 0x0, cr 1 ret 0
[ 581.770897][ T9814]
[ 581.797259][ T9865] veth0_macvtap: entered promiscuous mode
[ 581.860726][ T9814] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6363: inode #2226: comm syz-executor: ext4_mb_new_blocks: Allocation found: [0, 0], pblk:5908 len:1
[ 581.860726][ T9814]
[ 581.927245][ T9887] veth0_macvtap: entered promiscuous mode
[ 581.957966][ T9814] EXT4-fs warning (device sda1): ext4_ext_insert_extent:2017: inode #2226: comm syz-executor: ext4_ext_insert_extent: add newext [0, 1, 5908, unwrit:0] to extent tree.
[ 581.957966][ T9814]
[ 581.976566][ T9887] veth1_macvtap: entered promiscuous mode
[ 582.050721][ T9814] EXT4-fs warning (device sda1): ext4_es_insert_extent:931: inode #2226: comm syz-executor: ext4_es_insert_extent: add [0, 0] 5908 1 0 to extent status tree of inode 2226
[ 582.050721][ T9814]
[ 582.143572][ T9887] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 582.192757][ T9814] EXT4-fs warning (device sda1): __es_remove_extent:1512: inode #2226: comm syz-executor: __es_remove_extent: remove [0,0] range from extent status tree of inode 2226
[ 582.192757][ T9814]
[ 582.280504][ T9887] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 582.445814][ T9865] veth1_macvtap: entered promiscuous mode
2026/02/10 20:53:36 executed programs: 188
[ 582.531721][ T1152] netdevsim netdevsim6 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 582.543665][ T1152] netdevsim netdevsim6 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 582.589406][ T1152] netdevsim netdevsim6 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 582.615888][T10006] loop7: detected capacity change from 0 to 1024
[ 582.646766][ T9865] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 582.669176][ T1152] netdevsim netdevsim6 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 582.677174][T10006] EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 582.710207][T10011] EXT4-fs warning (device loop7): ext4_cache_extents:532: inode #2: comm syz.7.187: ext4_cache_extents: caching extents
[ 582.710207][T10011]
[ 582.727279][T10011] EXT4-fs warning (device loop7): ext4_es_cache_extent:1045: inode #2: comm syz.7.187: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 582.727279][T10011]
[ 582.752863][T10011] EXT4-fs warning (device loop7): __es_insert_extent:852: inode #2: comm syz.7.187: __es_insert_extent: add [0, 0, 16, 0x1]
[ 582.752863][T10011]
[ 582.806481][T10011] EXT4-fs warning (device loop7): ext4_es_cache_extent:1045: inode #2: comm syz.7.187: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 582.806481][T10011]
[ 582.840224][ T9865] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 582.894976][T10011] EXT4-fs warning (device loop7): ext4_es_remove_extent:1657: inode #18: comm syz.7.187: ext4_es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 582.894976][T10011]
[ 582.900356][ T9814] EXT4-fs warning (device loop7): ext4_cache_extents:532: inode #11: comm syz-executor: ext4_cache_extents: caching extents
[ 582.900356][ T9814]
[ 582.958125][T10011] EXT4-fs warning (device loop7): __es_remove_extent:1512: inode #18: comm syz.7.187: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 582.958125][T10011]
[ 582.990459][ T9814] EXT4-fs warning (device loop7): ext4_es_cache_extent:1045: inode #11: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:11 pblk:32 status:0x1
[ 582.990459][ T9814]
[ 583.019606][ T1531] netdevsim netdevsim8 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 583.050548][ T9814] EXT4-fs warning (device loop7): __es_insert_extent:852: inode #11: comm syz-executor: __es_insert_extent: add [0, 10, 32, 0x1]
[ 583.050548][ T9814]
[ 583.051491][ T1531] netdevsim netdevsim8 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 583.080690][T10011] EXT4-fs warning (device loop7): ext4_ext_remove_space:2857: inode #18: comm syz.7.187: ext4_ext_remove_space: remove range [0, -2] from extent tree
[ 583.080690][T10011]
[ 583.111202][ T145] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 583.125999][ T1531] netdevsim netdevsim8 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 583.136451][ T145] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 583.146493][ T1531] netdevsim netdevsim8 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 583.243621][ T1967] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 583.276065][ T1967] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 583.288433][ T9929] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 583.327907][ T9887] CPU: 0 UID: 0 PID: 9887 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 583.327933][ T9887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 583.327942][ T9887] Call Trace:
[ 583.327948][ T9887]
[ 583.327956][ T9887] dump_stack_lvl+0xe8/0x150
[ 583.327981][ T9887] ext4_cache_extents+0x31a/0x340
[ 583.328001][ T9887] ? ext4_find_extent+0x2e3/0xa20
[ 583.328022][ T9887] ext4_find_extent+0x3a9/0xa20
[ 583.328047][ T9887] ext4_ext_map_blocks+0x283/0x5760
[ 583.328077][ T9887] ? __lock_acquire+0x6b5/0x2cf0
[ 583.328120][ T9887] ? look_up_lock_class+0x57/0x110
[ 583.328141][ T9887] ? register_lock_class+0x31/0x2e0
[ 583.328165][ T9887] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 583.328186][ T9887] ? __lock_acquire+0x6b5/0x2cf0
[ 583.328229][ T9887] ext4_map_query_blocks+0x13b/0xa00
[ 583.328250][ T9887] ? ext4_map_blocks+0x42c/0x11d0
[ 583.328278][ T9887] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 583.328307][ T9887] ? down_read+0x272/0x2e0
[ 583.328324][ T9887] ? ext4_map_blocks+0x259/0x11d0
[ 583.328345][ T9887] ext4_map_blocks+0x444/0x11d0
[ 583.328377][ T9887] ? __pfx_ext4_map_blocks+0x10/0x10
[ 583.328411][ T9887] ext4_append+0x22e/0x560
[ 583.328438][ T9887] ? __pfx_ext4_append+0x10/0x10
[ 583.328465][ T9887] ? set_nlink+0x5f/0x170
[ 583.328484][ T9887] ext4_init_new_dir+0x11f/0x1c0
[ 583.328509][ T9887] ext4_mkdir+0x49b/0xbf0
[ 583.328541][ T9887] ? __pfx_ext4_mkdir+0x10/0x10
[ 583.328576][ T9887] ? inode_permission+0x2fd/0x5f0
[ 583.328592][ T9887] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 583.328611][ T9887] vfs_mkdir+0x753/0x870
[ 583.328639][ T9887] do_mkdirat+0x27d/0x4b0
[ 583.328665][ T9887] ? __pfx_do_mkdirat+0x10/0x10
[ 583.328688][ T9887] ? getname_flags+0x1e4/0x540
[ 583.328709][ T9887] __x64_sys_mkdirat+0x87/0xa0
[ 583.328731][ T9887] do_syscall_64+0xe2/0xf80
[ 583.328750][ T9887] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 583.328765][ T9887] ? trace_irq_disable+0x37/0x100
[ 583.328779][ T9887] ? clear_bhb_loop+0x60/0xb0
[ 583.328798][ T9887] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 583.328813][ T9887] RIP: 0033:0x7fe11d199d97
[ 583.328829][ T9887] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 583.328843][ T9887] RSP: 002b:00007ffdbe711208 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 583.328860][ T9887] RAX: ffffffffffffffda RBX: 00007fe11d205adc RCX: 00007fe11d199d97
[ 583.328870][ T9887] RDX: 00000000000001ff RSI: 00007fe11d205adc RDI: 00000000ffffff9c
[ 583.328880][ T9887] RBP: 00007ffdbe711290 R08: 0000000000000000 R09: 0000000000000000
[ 583.328889][ T9887] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdbe711298
[ 583.328899][ T9887] R13: 0000000000000002 R14: 00007ffdbe711478 R15: 0000000000000000
[ 583.328926][ T9887]
[ 583.328997][ T9887] CPU: 0 UID: 0 PID: 9887 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 583.329015][ T9887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 583.329024][ T9887] Call Trace:
[ 583.329031][ T9887]
[ 583.329037][ T9887] dump_stack_lvl+0xe8/0x150
[ 583.329057][ T9887] ext4_cache_extents+0x31a/0x340
[ 583.329075][ T9887] ? ext4_find_extent+0x2e3/0xa20
[ 583.329098][ T9887] ext4_find_extent+0x3a9/0xa20
[ 583.329124][ T9887] ext4_ext_map_blocks+0x283/0x5760
[ 583.329154][ T9887] ? rcu_is_watching+0x15/0xb0
[ 583.329174][ T9887] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 583.329194][ T9887] ? __lock_acquire+0x6b5/0x2cf0
[ 583.329217][ T9887] ? __lock_acquire+0x6b5/0x2cf0
[ 583.329240][ T9887] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 583.329263][ T9887] ? ext4_map_blocks+0x7b5/0x11d0
[ 583.329305][ T9887] ext4_map_create_blocks+0x11d/0x540
[ 583.329336][ T9887] ext4_map_blocks+0x7cd/0x11d0
[ 583.329369][ T9887] ? __pfx_ext4_map_blocks+0x10/0x10
[ 583.329407][ T9887] ext4_getblk+0x1ca/0x780
[ 583.329434][ T9887] ? __pfx_ext4_getblk+0x10/0x10
[ 583.329470][ T9887] ext4_bread+0x2a/0x180
[ 583.329493][ T9887] ext4_append+0x2ba/0x560
[ 583.329518][ T9887] ? __pfx_ext4_append+0x10/0x10
[ 583.329546][ T9887] ? set_nlink+0x5f/0x170
[ 583.329785][ T9887] ext4_init_new_dir+0x11f/0x1c0
[ 583.329837][ T9887] ext4_mkdir+0x49b/0xbf0
[ 583.329872][ T9887] ? __pfx_ext4_mkdir+0x10/0x10
[ 583.329964][ T9887] ? inode_permission+0x2fd/0x5f0
[ 583.329982][ T9887] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 583.330001][ T9887] vfs_mkdir+0x753/0x870
[ 583.330030][ T9887] do_mkdirat+0x27d/0x4b0
[ 583.330057][ T9887] ? __pfx_do_mkdirat+0x10/0x10
[ 583.330082][ T9887] ? getname_flags+0x1e4/0x540
[ 583.330102][ T9887] __x64_sys_mkdirat+0x87/0xa0
[ 583.330124][ T9887] do_syscall_64+0xe2/0xf80
[ 583.330145][ T9887] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 583.330160][ T9887] ? trace_irq_disable+0x37/0x100
[ 583.330174][ T9887] ? clear_bhb_loop+0x60/0xb0
[ 583.330194][ T9887] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 583.330210][ T9887] RIP: 0033:0x7fe11d199d97
[ 583.330227][ T9887] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 583.330242][ T9887] RSP: 002b:00007ffdbe711208 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 583.330260][ T9887] RAX: ffffffffffffffda RBX: 00007fe11d205adc RCX: 00007fe11d199d97
[ 583.330272][ T9887] RDX: 00000000000001ff RSI: 00007fe11d205adc RDI: 00000000ffffff9c
[ 583.330284][ T9887] RBP: 00007ffdbe711290 R08: 0000000000000000 R09: 0000000000000000
[ 583.330295][ T9887] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdbe711298
[ 583.330305][ T9887] R13: 0000000000000002 R14: 00007ffdbe711478 R15: 0000000000000000
[ 583.330335][ T9887]
[ 583.358601][ T9045] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 583.557627][ T9909] veth0_vlan: entered promiscuous mode
[ 583.642425][ T9045] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 584.208864][T10031] loop6: detected capacity change from 0 to 1024
[ 584.299757][ T9909] veth1_vlan: entered promiscuous mode
[ 584.303261][T10031] EXT4-fs (loop6): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 584.373914][T10036] EXT4-fs warning (device loop6): ext4_cache_extents:532: inode #2: comm syz.6.192: ext4_cache_extents: caching extents
[ 584.373914][T10036]
[ 584.380079][ T9929] veth0_vlan: entered promiscuous mode
[ 584.396704][T10036] EXT4-fs warning (device loop6): ext4_es_cache_extent:1045: inode #2: comm syz.6.192: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 584.396704][T10036]
[ 584.421088][T10036] EXT4-fs warning (device loop6): __es_insert_extent:852: inode #2: comm syz.6.192: __es_insert_extent: add [0, 0, 16, 0x1]
[ 584.421088][T10036]
[ 584.460150][T10036] EXT4-fs warning (device loop6): ext4_es_cache_extent:1045: inode #2: comm syz.6.192: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 584.460150][T10036]
[ 584.487400][ T9929] veth1_vlan: entered promiscuous mode
[ 584.527903][T10036] EXT4-fs warning (device loop6): ext4_es_remove_extent:1657: inode #18: comm syz.6.192: ext4_es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 584.527903][T10036]
[ 584.528625][T10011] EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[ 584.567855][T10036] EXT4-fs warning (device loop6): __es_remove_extent:1512: inode #18: comm syz.6.192: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 584.567855][T10036]
[ 584.612044][T10031] EXT4-fs warning (device loop6): ext4_cache_extents:532: inode #15: comm syz.6.192: ext4_cache_extents: caching extents
[ 584.612044][T10031]
[ 584.632922][T10036] EXT4-fs warning (device loop6): ext4_ext_remove_space:2857: inode #18: comm syz.6.192: ext4_ext_remove_space: remove range [0, -2] from extent tree
[ 584.632922][T10036]
[ 584.645711][T10031] EXT4-fs warning (device loop6): ext4_es_cache_extent:1045: inode #15: comm syz.6.192: ext4_es_cache_extent: cache extent lblk:0 len:-1 pblk:-1 status:0x8
[ 584.645711][T10031]
[ 584.678760][ T1531] netdevsim netdevsim7 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 584.682303][T10031] EXT4-fs warning (device loop6): __es_insert_extent:852: inode #15: comm syz.6.192: __es_insert_extent: add [0, -2, 576460752303423487, 0x8]
[ 584.682303][T10031]
[ 584.700554][T10040] CPU: 0 UID: 0 PID: 10040 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 584.700587][T10040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 584.700599][T10040] Call Trace:
[ 584.700606][T10040]
[ 584.700613][T10040] dump_stack_lvl+0xe8/0x150
[ 584.700637][T10040] ext4_cache_extents+0x31a/0x340
[ 584.700658][T10040] ? ext4_find_extent+0x2e3/0xa20
[ 584.700682][T10040] ext4_find_extent+0x3a9/0xa20
[ 584.700707][T10040] ext4_ext_map_blocks+0x283/0x5760
[ 584.700746][T10040] ? __lock_acquire+0x6b5/0x2cf0
[ 584.700784][T10040] ? look_up_lock_class+0x57/0x110
[ 584.700804][T10040] ? register_lock_class+0x31/0x2e0
[ 584.700827][T10040] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 584.700850][T10040] ? __lock_acquire+0x6b5/0x2cf0
[ 584.700891][T10040] ext4_map_query_blocks+0x13b/0xa00
[ 584.700912][T10040] ? ext4_map_blocks+0x42c/0x11d0
[ 584.700939][T10040] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 584.700968][T10040] ? down_read+0x272/0x2e0
[ 584.700985][T10040] ? ext4_map_blocks+0x259/0x11d0
[ 584.701009][T10040] ext4_map_blocks+0x444/0x11d0
[ 584.701042][T10040] ? __pfx_ext4_map_blocks+0x10/0x10
[ 584.701079][T10040] ext4_append+0x22e/0x560
[ 584.701104][T10040] ? __pfx_ext4_append+0x10/0x10
[ 584.701131][T10040] ? set_nlink+0x5f/0x170
[ 584.701149][T10040] ext4_init_new_dir+0x11f/0x1c0
[ 584.701174][T10040] ext4_mkdir+0x49b/0xbf0
[ 584.701206][T10040] ? __pfx_ext4_mkdir+0x10/0x10
[ 584.701230][T10040] ? inode_permission+0x2fd/0x5f0
[ 584.701246][T10040] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 584.701265][T10040] vfs_mkdir+0x753/0x870
[ 584.701293][T10040] do_mkdirat+0x27d/0x4b0
[ 584.701318][T10040] ? __pfx_do_mkdirat+0x10/0x10
[ 584.701335][T10040] ? strncpy_from_user+0x150/0x2b0
[ 584.701360][T10040] ? getname_flags+0x1e4/0x540
[ 584.701380][T10040] __x64_sys_mkdir+0x6c/0x80
[ 584.701400][T10040] do_syscall_64+0xe2/0xf80
[ 584.701418][T10040] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 584.701432][T10040] ? trace_irq_disable+0x37/0x100
[ 584.701445][T10040] ? clear_bhb_loop+0x60/0xb0
[ 584.701464][T10040] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 584.701478][T10040] RIP: 0033:0x7f1bcabc82d7
[ 584.701494][T10040] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 584.701506][T10040] RSP: 002b:00007ffc79a21d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 584.701523][T10040] RAX: ffffffffffffffda RBX: 00007ffc79a21e72 RCX: 00007f1bcabc82d7
[ 584.701535][T10040] RDX: 00000000016240b5 RSI: 00000000000001c0 RDI: 00007ffc79a21e60
[ 584.701545][T10040] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 584.701560][T10040] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000016240b5
[ 584.701569][T10040] R13: 00007ffc79a21e72 R14: 0000000000000004 R15: 00007f1bcac55dc0
[ 584.701597][T10040]
[ 584.704742][T10040] CPU: 0 UID: 0 PID: 10040 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 584.704772][T10040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 584.704781][T10040] Call Trace:
[ 584.704788][T10040]
[ 584.704795][T10040] dump_stack_lvl+0xe8/0x150
[ 584.704817][T10040] ext4_cache_extents+0x31a/0x340
[ 584.704835][T10040] ? ext4_find_extent+0x2e3/0xa20
[ 584.704857][T10040] ext4_find_extent+0x3a9/0xa20
[ 584.704883][T10040] ext4_ext_map_blocks+0x283/0x5760
[ 584.704912][T10040] ? rcu_is_watching+0x15/0xb0
[ 584.704934][T10040] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 584.704955][T10040] ? __lock_acquire+0x6b5/0x2cf0
[ 584.704981][T10040] ? __lock_acquire+0x6b5/0x2cf0
[ 584.705005][T10040] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 584.705034][T10040] ? ext4_map_blocks+0x7b5/0x11d0
[ 584.705075][T10040] ext4_map_create_blocks+0x11d/0x540
[ 584.705104][T10040] ext4_map_blocks+0x7cd/0x11d0
[ 584.705136][T10040] ? __pfx_ext4_map_blocks+0x10/0x10
[ 584.705173][T10040] ext4_getblk+0x1ca/0x780
[ 584.705199][T10040] ? __pfx_ext4_getblk+0x10/0x10
[ 584.705234][T10040] ext4_bread+0x2a/0x180
[ 584.705256][T10040] ext4_append+0x2ba/0x560
[ 584.705283][T10040] ? __pfx_ext4_append+0x10/0x10
[ 584.705309][T10040] ? set_nlink+0x5f/0x170
[ 584.705326][T10040] ext4_init_new_dir+0x11f/0x1c0
[ 584.705351][T10040] ext4_mkdir+0x49b/0xbf0
[ 584.705383][T10040] ? __pfx_ext4_mkdir+0x10/0x10
[ 584.705407][T10040] ? inode_permission+0x2fd/0x5f0
[ 584.705423][T10040] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 584.705442][T10040] vfs_mkdir+0x753/0x870
[ 584.705468][T10040] do_mkdirat+0x27d/0x4b0
[ 584.705493][T10040] ? __pfx_do_mkdirat+0x10/0x10
[ 584.705510][T10040] ? strncpy_from_user+0x150/0x2b0
[ 584.705535][T10040] ? getname_flags+0x1e4/0x540
[ 584.705555][T10040] __x64_sys_mkdir+0x6c/0x80
[ 584.705575][T10040] do_syscall_64+0xe2/0xf80
[ 584.705593][T10040] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 584.705608][T10040] ? trace_irq_disable+0x37/0x100
[ 584.705621][T10040] ? clear_bhb_loop+0x60/0xb0
[ 584.705640][T10040] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 584.705654][T10040] RIP: 0033:0x7f1bcabc82d7
[ 584.705669][T10040] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 584.705681][T10040] RSP: 002b:00007ffc79a21d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 584.705699][T10040] RAX: ffffffffffffffda RBX: 00007ffc79a21e72 RCX: 00007f1bcabc82d7
[ 584.705709][T10040] RDX: 00000000016240b5 RSI: 00000000000001c0 RDI: 00007ffc79a21e60
[ 584.705720][T10040] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 584.705730][T10040] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000016240b5
[ 584.705739][T10040] R13: 00007ffc79a21e72 R14: 0000000000000004 R15: 00007f1bcac55dc0
[ 584.705773][T10040]
[ 584.754149][ T6375] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1
[ 584.812753][T10031] EXT4-fs error (device loop6): mb_free_blocks:2059: group 0,
[ 584.819275][ T6375] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9
[ 584.822350][T10031] inode 15:
[ 584.828486][ T6375] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9
[ 584.833223][T10031] block 305:freeing already freed block (bit 19); block bitmap corrupt.
[ 584.921152][ T4927] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 585.041664][ T6375] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4
[ 585.050694][ T9909] veth0_macvtap: entered promiscuous mode
[ 585.051806][ T6375] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2
[ 585.118768][ T9909] veth1_macvtap: entered promiscuous mode
[ 585.181632][ T4927] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 585.238637][ T9887] EXT4-fs (loop6): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[ 585.259304][ T9865] CPU: 0 UID: 0 PID: 9865 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 585.259328][ T9865] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 585.259337][ T9865] Call Trace:
[ 585.259344][ T9865]
[ 585.259351][ T9865] dump_stack_lvl+0xe8/0x150
[ 585.259375][ T9865] ext4_cache_extents+0x31a/0x340
[ 585.259394][ T9865] ? ext4_find_extent+0x2e3/0xa20
[ 585.259417][ T9865] ext4_find_extent+0x3a9/0xa20
[ 585.259442][ T9865] ext4_ext_map_blocks+0x283/0x5760
[ 585.259474][ T9865] ? __lock_acquire+0x6b5/0x2cf0
[ 585.259505][ T9865] ? look_up_lock_class+0x57/0x110
[ 585.259524][ T9865] ? register_lock_class+0x31/0x2e0
[ 585.259546][ T9865] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 585.259569][ T9865] ? __lock_acquire+0x6b5/0x2cf0
[ 585.259610][ T9865] ext4_map_query_blocks+0x13b/0xa00
[ 585.259630][ T9865] ? ext4_map_blocks+0x42c/0x11d0
[ 585.259658][ T9865] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 585.259694][ T9865] ? down_read+0x272/0x2e0
[ 585.259712][ T9865] ? ext4_map_blocks+0x259/0x11d0
[ 585.259735][ T9865] ext4_map_blocks+0x444/0x11d0
[ 585.259767][ T9865] ? __pfx_ext4_map_blocks+0x10/0x10
[ 585.259804][ T9865] ext4_append+0x22e/0x560
[ 585.259830][ T9865] ? __pfx_ext4_append+0x10/0x10
[ 585.259856][ T9865] ? set_nlink+0x5f/0x170
[ 585.259891][ T9865] ext4_init_new_dir+0x11f/0x1c0
[ 585.259915][ T9865] ext4_mkdir+0x49b/0xbf0
[ 585.259947][ T9865] ? __pfx_ext4_mkdir+0x10/0x10
[ 585.259978][ T9865] ? inode_permission+0x2fd/0x5f0
[ 585.259994][ T9865] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 585.260013][ T9865] vfs_mkdir+0x753/0x870
[ 585.260039][ T9865] do_mkdirat+0x27d/0x4b0
[ 585.260063][ T9865] ? __pfx_do_mkdirat+0x10/0x10
[ 585.260087][ T9865] ? getname_flags+0x1e4/0x540
[ 585.260106][ T9865] __x64_sys_mkdirat+0x87/0xa0
[ 585.260127][ T9865] do_syscall_64+0xe2/0xf80
[ 585.260145][ T9865] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 585.260160][ T9865] ? trace_irq_disable+0x37/0x100
[ 585.260172][ T9865] ? clear_bhb_loop+0x60/0xb0
[ 585.260191][ T9865] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 585.260206][ T9865] RIP: 0033:0x7f2315599d97
[ 585.260221][ T9865] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 585.260234][ T9865] RSP: 002b:00007fff21044998 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 585.260252][ T9865] RAX: ffffffffffffffda RBX: 00007f2315605adc RCX: 00007f2315599d97
[ 585.260263][ T9865] RDX: 00000000000001ff RSI: 00007f2315605adc RDI: 00000000ffffff9c
[ 585.260274][ T9865] RBP: 00007fff21044a20 R08: 0000000000000000 R09: 0000000000000000
[ 585.260284][ T9865] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff21044a28
[ 585.260293][ T9865] R13: 0000000000000002 R14: 00007fff21044c08 R15: 0000000000000000
[ 585.260321][ T9865]
[ 585.260384][ T9865] CPU: 0 UID: 0 PID: 9865 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 585.260401][ T9865] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 585.260409][ T9865] Call Trace:
[ 585.260416][ T9865]
[ 585.260422][ T9865] dump_stack_lvl+0xe8/0x150
[ 585.260440][ T9865] ext4_cache_extents+0x31a/0x340
[ 585.260457][ T9865] ? ext4_find_extent+0x2e3/0xa20
[ 585.260479][ T9865] ext4_find_extent+0x3a9/0xa20
[ 585.260506][ T9865] ext4_ext_map_blocks+0x283/0x5760
[ 585.260534][ T9865] ? rcu_is_watching+0x15/0xb0
[ 585.260556][ T9865] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 585.260582][ T9865] ? __lock_acquire+0x6b5/0x2cf0
[ 585.260608][ T9865] ? __lock_acquire+0x6b5/0x2cf0
[ 585.260632][ T9865] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 585.260656][ T9865] ? ext4_map_blocks+0x7b5/0x11d0
[ 585.260703][ T9865] ext4_map_create_blocks+0x11d/0x540
[ 585.260732][ T9865] ext4_map_blocks+0x7cd/0x11d0
[ 585.260765][ T9865] ? __pfx_ext4_map_blocks+0x10/0x10
[ 585.260801][ T9865] ext4_getblk+0x1ca/0x780
[ 585.260827][ T9865] ? __pfx_ext4_getblk+0x10/0x10
[ 585.260863][ T9865] ext4_bread+0x2a/0x180
[ 585.260885][ T9865] ext4_append+0x2ba/0x560
[ 585.260910][ T9865] ? __pfx_ext4_append+0x10/0x10
[ 585.260937][ T9865] ? set_nlink+0x5f/0x170
[ 585.260954][ T9865] ext4_init_new_dir+0x11f/0x1c0
[ 585.260978][ T9865] ext4_mkdir+0x49b/0xbf0
[ 585.261010][ T9865] ? __pfx_ext4_mkdir+0x10/0x10
[ 585.261034][ T9865] ? inode_permission+0x2fd/0x5f0
[ 585.261050][ T9865] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 585.261067][ T9865] vfs_mkdir+0x753/0x870
[ 585.261095][ T9865] do_mkdirat+0x27d/0x4b0
[ 585.261120][ T9865] ? __pfx_do_mkdirat+0x10/0x10
[ 585.261143][ T9865] ? getname_flags+0x1e4/0x540
[ 585.261162][ T9865] __x64_sys_mkdirat+0x87/0xa0
[ 585.261183][ T9865] do_syscall_64+0xe2/0xf80
[ 585.261200][ T9865] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 585.261214][ T9865] ? trace_irq_disable+0x37/0x100
[ 585.261227][ T9865] ? clear_bhb_loop+0x60/0xb0
[ 585.261246][ T9865] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 585.261260][ T9865] RIP: 0033:0x7f2315599d97
[ 585.261273][ T9865] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 585.261286][ T9865] RSP: 002b:00007fff21044998 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 585.261301][ T9865] RAX: ffffffffffffffda RBX: 00007f2315605adc RCX: 00007f2315599d97
[ 585.261313][ T9865] RDX: 00000000000001ff RSI: 00007f2315605adc RDI: 00000000ffffff9c
[ 585.261323][ T9865] RBP: 00007fff21044a20 R08: 0000000000000000 R09: 0000000000000000
[ 585.261333][ T9865] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff21044a28
[ 585.261343][ T9865] R13: 0000000000000002 R14: 00007fff21044c08 R15: 0000000000000000
[ 585.261369][ T9865]
[ 586.342497][ T1531] netdevsim netdevsim7 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 586.386329][ T9929] veth0_macvtap: entered promiscuous mode
[ 586.421346][ T9929] veth1_macvtap: entered promiscuous mode
[ 586.429613][T10073] loop8: detected capacity change from 0 to 1024
[ 586.510503][T10073] EXT4-fs (loop8): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 586.513974][T10076] loop6: detected capacity change from 0 to 1024
[ 586.559322][T10082] EXT4-fs warning (device loop8): ext4_cache_extents:532: inode #2: comm syz.8.195: ext4_cache_extents: caching extents
[ 586.559322][T10082]
[ 586.593198][T10076] EXT4-fs (loop6): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 586.628064][ T1531] netdevsim netdevsim7 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 586.638915][T10084] EXT4-fs warning (device loop6): ext4_cache_extents:532: inode #2: comm syz.6.203: ext4_cache_extents: caching extents
[ 586.638915][T10084]
[ 586.667390][T10082] EXT4-fs warning (device loop8): ext4_es_cache_extent:1045: inode #2: comm syz.8.195: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 586.667390][T10082]
[ 586.686871][T10084] EXT4-fs warning (device loop6): ext4_es_cache_extent:1045: inode #2: comm syz.6.203: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 586.686871][T10084]
[ 586.686910][T10084] EXT4-fs warning (device loop6): __es_insert_extent:852: inode #2: comm syz.6.203: __es_insert_extent: add [0, 0, 16, 0x1]
[ 586.686910][T10084]
[ 586.686975][T10084] EXT4-fs warning (device loop6): ext4_es_cache_extent:1045: inode #2: comm syz.6.203: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 586.686975][T10084]
[ 586.720255][T10084] EXT4-fs warning (device loop6): ext4_es_remove_extent:1657: inode #18: comm syz.6.203: ext4_es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 586.720255][T10084]
[ 586.732136][T10082] EXT4-fs warning (device loop8): __es_insert_extent:852: inode #2: comm syz.8.195: __es_insert_extent: add [0, 0, 16, 0x1]
[ 586.732136][T10082]
[ 586.779392][T10082] EXT4-fs warning (device loop8): ext4_es_cache_extent:1045: inode #2: comm syz.8.195: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 586.779392][T10082]
[ 586.802020][T10084] EXT4-fs warning (device loop6): __es_remove_extent:1512: inode #18: comm syz.6.203: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 586.802020][T10084]
[ 586.812731][ T9909] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 586.823826][T10082] EXT4-fs warning (device loop8): ext4_es_remove_extent:1657: inode #18: comm syz.8.195: ext4_es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 586.823826][T10082]
[ 586.851807][T10082] EXT4-fs warning (device loop8): __es_remove_extent:1512: inode #18: comm syz.8.195: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 586.851807][T10082]
[ 586.874896][T10084] EXT4-fs warning (device loop6): ext4_ext_remove_space:2857: inode #18: comm syz.6.203: ext4_ext_remove_space: remove range [0, -2] from extent tree
[ 586.874896][T10084]
[ 586.878388][ T9887] EXT4-fs warning (device loop6): ext4_cache_extents:532: inode #11: comm syz-executor: ext4_cache_extents: caching extents
[ 586.878388][ T9887]
[ 586.932101][ T9865] EXT4-fs warning (device loop8): ext4_cache_extents:532: inode #11: comm syz-executor: ext4_cache_extents: caching extents
[ 586.932101][ T9865]
[ 586.949700][T10082] EXT4-fs warning (device loop8): ext4_ext_remove_space:2857: inode #18: comm syz.8.195: ext4_ext_remove_space: remove range [0, -2] from extent tree
[ 586.949700][T10082]
[ 586.978698][T10084] EXT4-fs warning (device loop6): ext4_cache_extents:532: inode #18: comm syz.6.203: ext4_cache_extents: caching extents
[ 586.978698][T10084]
[ 586.990742][ T9887] EXT4-fs warning (device loop6): ext4_es_cache_extent:1045: inode #11: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:11 pblk:32 status:0x1
[ 586.990742][ T9887]
[ 587.013053][ T9865] EXT4-fs warning (device loop8): ext4_es_cache_extent:1045: inode #11: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:11 pblk:32 status:0x1
[ 587.013053][ T9865]
[ 587.029010][T10082] EXT4-fs warning (device loop8): ext4_cache_extents:532: inode #18: comm syz.8.195: ext4_cache_extents: caching extents
[ 587.029010][T10082]
[ 587.069384][ T1531] netdevsim netdevsim7 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 587.094590][ T9909] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 587.121416][T10084] EXT4-fs error (device loop6): ext4_mb_mark_diskspace_used:4242: comm syz.6.203: Allocating blocks 497-513 which overlap fs metadata
[ 587.138655][ T9929] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 587.181302][ T1152] netdevsim netdevsim9 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 587.196317][T10084] EXT4-fs (loop6): pa ffff888060383658: logic 256, phys. 385, len 8
[ 587.198653][ T9929] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 587.206532][T10084] EXT4-fs error (device loop6): ext4_mb_release_inode_pa:5486: group 0, free 0, pa_free 1
[ 587.227036][ T6375] Bluetooth: hci1: command tx timeout
[ 587.275664][ T1152] netdevsim netdevsim9 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 587.299564][ T1152] netdevsim netdevsim9 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 587.395876][ T1152] netdevsim netdevsim9 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 587.471344][ T1152] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 587.482100][ T1152] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 587.524210][ T1152] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 587.543078][T10084] EXT4-fs (loop6): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[ 587.579089][T10082] EXT4-fs error (device loop8): mb_free_blocks:2059: group 0, inode 18: block 177:freeing already freed block (bit 11); block bitmap corrupt.
[ 587.606596][ T1152] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 587.632569][T10082] EXT4-fs (loop8): unmounting filesystem 00000000-0000-0000-0000-000000000000.
2026/02/10 20:53:42 executed programs: 196
[ 587.776628][T10100] EXT4-fs warning: 34 callbacks suppressed
[ 587.776648][T10100] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2230: comm syz-executor: ext4_cache_extents: caching extents
[ 587.776648][T10100]
[ 587.808584][T10100] CPU: 1 UID: 0 PID: 10100 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 587.808608][T10100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 587.808618][T10100] Call Trace:
[ 587.808626][T10100]
[ 587.808634][T10100] dump_stack_lvl+0xe8/0x150
[ 587.808659][T10100] ext4_cache_extents+0x31a/0x340
[ 587.808679][T10100] ? ext4_find_extent+0x2e3/0xa20
[ 587.808702][T10100] ext4_find_extent+0x3a9/0xa20
[ 587.808729][T10100] ext4_ext_map_blocks+0x283/0x5760
[ 587.808776][T10100] ? __lock_acquire+0x6b5/0x2cf0
[ 587.808808][T10100] ? look_up_lock_class+0x57/0x110
[ 587.808828][T10100] ? register_lock_class+0x31/0x2e0
[ 587.808852][T10100] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 587.808874][T10100] ? __lock_acquire+0x6b5/0x2cf0
[ 587.808915][T10100] ext4_map_query_blocks+0x13b/0xa00
[ 587.808937][T10100] ? ext4_map_blocks+0x42c/0x11d0
[ 587.808965][T10100] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 587.808992][T10100] ? down_read+0x272/0x2e0
[ 587.809010][T10100] ? ext4_map_blocks+0x259/0x11d0
[ 587.809034][T10100] ext4_map_blocks+0x444/0x11d0
[ 587.809067][T10100] ? __pfx_ext4_map_blocks+0x10/0x10
[ 587.809105][T10100] ext4_append+0x22e/0x560
[ 587.809133][T10100] ? __pfx_ext4_append+0x10/0x10
[ 587.809160][T10100] ? set_nlink+0x5f/0x170
[ 587.809179][T10100] ext4_init_new_dir+0x11f/0x1c0
[ 587.809203][T10100] ext4_mkdir+0x49b/0xbf0
[ 587.809237][T10100] ? __pfx_ext4_mkdir+0x10/0x10
[ 587.809263][T10100] ? inode_permission+0x2fd/0x5f0
[ 587.809278][T10100] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 587.809297][T10100] vfs_mkdir+0x753/0x870
[ 587.809325][T10100] do_mkdirat+0x27d/0x4b0
[ 587.809350][T10100] ? __pfx_do_mkdirat+0x10/0x10
[ 587.809368][T10100] ? strncpy_from_user+0x150/0x2b0
[ 587.809488][T10100] ? getname_flags+0x1e4/0x540
[ 587.809509][T10100] __x64_sys_mkdir+0x6c/0x80
[ 587.809530][T10100] do_syscall_64+0xe2/0xf80
[ 587.809549][T10100] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 587.809565][T10100] ? trace_irq_disable+0x37/0x100
[ 587.809579][T10100] ? clear_bhb_loop+0x60/0xb0
[ 587.809599][T10100] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 587.809614][T10100] RIP: 0033:0x7fad3f3c82d7
[ 587.809630][T10100] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 587.809644][T10100] RSP: 002b:00007ffd35ccbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 587.809662][T10100] RAX: ffffffffffffffda RBX: 00007ffd35ccbda2 RCX: 00007fad3f3c82d7
[ 587.809674][T10100] RDX: 0000000001687c22 RSI: 00000000000001c0 RDI: 00007ffd35ccbd90
[ 587.809685][T10100] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 587.809696][T10100] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001687c22
[ 587.809707][T10100] R13: 00007ffd35ccbda2 R14: 0000000000000004 R15: 00007fad3f455dc0
[ 587.809737][T10100]
[ 587.809752][T10100] EXT4-fs warning (device sda1): ext4_es_cache_extent:1045: inode #2230: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:-1 pblk:-1 status:0x8
[ 587.809752][T10100]
[ 588.180346][T10100] EXT4-fs warning (device sda1): __es_insert_extent:852: inode #2230: comm syz-executor: __es_insert_extent: add [0, -2, 576460752303423487, 0x8]
[ 588.180346][T10100]
[ 588.200398][T10100] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2230: comm syz-executor: ext4_cache_extents: caching extents
[ 588.200398][T10100]
[ 588.223363][T10100] CPU: 1 UID: 0 PID: 10100 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 588.223386][T10100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 588.223409][T10100] Call Trace:
[ 588.223415][T10100]
[ 588.223422][T10100] dump_stack_lvl+0xe8/0x150
[ 588.223444][T10100] ext4_cache_extents+0x31a/0x340
[ 588.223463][T10100] ? ext4_find_extent+0x2e3/0xa20
[ 588.223485][T10100] ext4_find_extent+0x3a9/0xa20
[ 588.223509][T10100] ext4_ext_map_blocks+0x283/0x5760
[ 588.223536][T10100] ? rcu_is_watching+0x15/0xb0
[ 588.223557][T10100] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 588.223578][T10100] ? __lock_acquire+0x6b5/0x2cf0
[ 588.223605][T10100] ? __lock_acquire+0x6b5/0x2cf0
[ 588.223627][T10100] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 588.223651][T10100] ? ext4_map_blocks+0x7b5/0x11d0
[ 588.223695][T10100] ext4_map_create_blocks+0x11d/0x540
[ 588.223725][T10100] ext4_map_blocks+0x7cd/0x11d0
[ 588.223759][T10100] ? __pfx_ext4_map_blocks+0x10/0x10
[ 588.223794][T10100] ext4_getblk+0x1ca/0x780
[ 588.223818][T10100] ? __pfx_ext4_getblk+0x10/0x10
[ 588.223848][T10100] ext4_bread+0x2a/0x180
[ 588.223867][T10100] ext4_append+0x2ba/0x560
[ 588.223890][T10100] ? __pfx_ext4_append+0x10/0x10
[ 588.223913][T10100] ? set_nlink+0x5f/0x170
[ 588.223928][T10100] ext4_init_new_dir+0x11f/0x1c0
[ 588.223950][T10100] ext4_mkdir+0x49b/0xbf0
[ 588.223977][T10100] ? __pfx_ext4_mkdir+0x10/0x10
[ 588.223999][T10100] ? inode_permission+0x2fd/0x5f0
[ 588.224012][T10100] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 588.224027][T10100] vfs_mkdir+0x753/0x870
[ 588.224051][T10100] do_mkdirat+0x27d/0x4b0
[ 588.224073][T10100] ? __pfx_do_mkdirat+0x10/0x10
[ 588.224088][T10100] ? strncpy_from_user+0x150/0x2b0
[ 588.224120][T10100] ? getname_flags+0x1e4/0x540
[ 588.224139][T10100] __x64_sys_mkdir+0x6c/0x80
[ 588.224159][T10100] do_syscall_64+0xe2/0xf80
[ 588.224176][T10100] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 588.224190][T10100] ? trace_irq_disable+0x37/0x100
[ 588.224203][T10100] ? clear_bhb_loop+0x60/0xb0
[ 588.224223][T10100] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 588.224237][T10100] RIP: 0033:0x7fad3f3c82d7
[ 588.224254][T10100] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 588.224266][T10100] RSP: 002b:00007ffd35ccbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 588.224283][T10100] RAX: ffffffffffffffda RBX: 00007ffd35ccbda2 RCX: 00007fad3f3c82d7
[ 588.224294][T10100] RDX: 0000000001687c22 RSI: 00000000000001c0 RDI: 00007ffd35ccbd90
[ 588.224303][T10100] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 588.224312][T10100] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001687c22
[ 588.224320][T10100] R13: 00007ffd35ccbda2 R14: 0000000000000004 R15: 00007fad3f455dc0
[ 588.224344][T10100]
[ 588.224357][T10100] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6274: inode #2230: comm syz-executor: ext4_mb_new_blocks: Allocation requested for: [0, 0]
[ 588.224357][T10100]
[ 588.604443][T10100] EXT4-fs warning (device sda1): ext4_mb_regular_allocator:3120: inode #2230: comm syz-executor: ext4_mb_regular_allocator: Best len 1, origin len 1, ac_status 2, ac_flags 0x0, cr 1 ret 0
[ 588.604443][T10100]
[ 588.627010][ T1531] bridge_slave_1: left allmulticast mode
[ 588.631447][T10100] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6363: inode #2230: comm syz-executor: ext4_mb_new_blocks: Allocation found: [0, 0], pblk:5912 len:1
[ 588.631447][T10100]
[ 588.634028][ T1531] bridge_slave_1: left promiscuous mode
[ 588.664488][T10100] EXT4-fs warning (device sda1): ext4_ext_insert_extent:2017: inode #2230: comm syz-executor: ext4_ext_insert_extent: add newext [0, 1, 5912, unwrit:0] to extent tree.
[ 588.664488][T10100]
[ 588.665892][ T1531] bridge0: port 2(bridge_slave_1) entered disabled state
[ 588.687861][T10100] EXT4-fs warning (device sda1): ext4_es_insert_extent:931: inode #2230: comm syz-executor: ext4_es_insert_extent: add [0, 0] 5912 1 0 to extent status tree of inode 2230
[ 588.687861][T10100]
[ 588.716194][T10100] EXT4-fs warning (device sda1): __es_remove_extent:1512: inode #2230: comm syz-executor: __es_remove_extent: remove [0,0] range from extent status tree of inode 2230
[ 588.716194][T10100]
[ 588.741189][T10102] CPU: 1 UID: 0 PID: 10102 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 588.741233][T10102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 588.741243][T10102] Call Trace:
[ 588.741250][T10102]
[ 588.741258][T10102] dump_stack_lvl+0xe8/0x150
[ 588.741284][T10102] ext4_cache_extents+0x31a/0x340
[ 588.741304][T10102] ? ext4_find_extent+0x2e3/0xa20
[ 588.741327][T10102] ext4_find_extent+0x3a9/0xa20
[ 588.741353][T10102] ext4_ext_map_blocks+0x283/0x5760
[ 588.741385][T10102] ? __lock_acquire+0x6b5/0x2cf0
[ 588.741416][T10102] ? look_up_lock_class+0x57/0x110
[ 588.741437][T10102] ? register_lock_class+0x31/0x2e0
[ 588.741460][T10102] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 588.741482][T10102] ? __lock_acquire+0x6b5/0x2cf0
[ 588.741523][T10102] ext4_map_query_blocks+0x13b/0xa00
[ 588.741542][T10102] ? ext4_map_blocks+0x42c/0x11d0
[ 588.741568][T10102] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 588.741594][T10102] ? down_read+0x272/0x2e0
[ 588.741611][T10102] ? ext4_map_blocks+0x259/0x11d0
[ 588.741634][T10102] ext4_map_blocks+0x444/0x11d0
[ 588.741667][T10102] ? __pfx_ext4_map_blocks+0x10/0x10
[ 588.741704][T10102] ext4_append+0x22e/0x560
[ 588.741731][T10102] ? __pfx_ext4_append+0x10/0x10
[ 588.741759][T10102] ? set_nlink+0x5f/0x170
[ 588.741777][T10102] ext4_init_new_dir+0x11f/0x1c0
[ 588.741802][T10102] ext4_mkdir+0x49b/0xbf0
[ 588.741835][T10102] ? __pfx_ext4_mkdir+0x10/0x10
[ 588.741866][T10102] ? inode_permission+0x2fd/0x5f0
[ 588.741883][T10102] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 588.741902][T10102] vfs_mkdir+0x753/0x870
[ 588.741931][T10102] do_mkdirat+0x27d/0x4b0
[ 588.741957][T10102] ? __pfx_do_mkdirat+0x10/0x10
[ 588.741974][T10102] ? strncpy_from_user+0x150/0x2b0
[ 588.742002][T10102] ? getname_flags+0x1e4/0x540
[ 588.742029][T10102] __x64_sys_mkdir+0x6c/0x80
[ 588.742054][T10102] do_syscall_64+0xe2/0xf80
[ 588.742072][T10102] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 588.742087][T10102] ? trace_irq_disable+0x37/0x100
[ 588.742118][T10102] ? clear_bhb_loop+0x60/0xb0
[ 588.742139][T10102] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 588.742154][T10102] RIP: 0033:0x7f4b1e5c82d7
[ 588.742170][T10102] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 588.742185][T10102] RSP: 002b:00007ffc240a1a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 588.742202][T10102] RAX: ffffffffffffffda RBX: 00007ffc240a1b82 RCX: 00007f4b1e5c82d7
[ 588.742215][T10102] RDX: 000000000d401d16 RSI: 00000000000001c0 RDI: 00007ffc240a1b70
[ 588.742226][T10102] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 588.742236][T10102] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000d401d16
[ 588.742246][T10102] R13: 00007ffc240a1b82 R14: 0000000000000004 R15: 00007f4b1e655dc0
[ 588.742275][T10102]
[ 588.742562][T10102] CPU: 1 UID: 0 PID: 10102 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 588.742580][T10102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 588.742589][T10102] Call Trace:
[ 588.742596][T10102]
[ 588.742603][T10102] dump_stack_lvl+0xe8/0x150
[ 588.742625][T10102] ext4_cache_extents+0x31a/0x340
[ 588.742642][T10102] ? ext4_find_extent+0x2e3/0xa20
[ 588.742664][T10102] ext4_find_extent+0x3a9/0xa20
[ 588.742691][T10102] ext4_ext_map_blocks+0x283/0x5760
[ 588.742722][T10102] ? rcu_is_watching+0x15/0xb0
[ 588.742745][T10102] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 588.742768][T10102] ? __lock_acquire+0x6b5/0x2cf0
[ 588.742795][T10102] ? __lock_acquire+0x6b5/0x2cf0
[ 588.742820][T10102] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 588.742845][T10102] ? ext4_map_blocks+0x7b5/0x11d0
[ 588.742888][T10102] ext4_map_create_blocks+0x11d/0x540
[ 588.742924][T10102] ext4_map_blocks+0x7cd/0x11d0
[ 588.742957][T10102] ? __pfx_ext4_map_blocks+0x10/0x10
[ 588.742995][T10102] ext4_getblk+0x1ca/0x780
[ 588.743023][T10102] ? __pfx_ext4_getblk+0x10/0x10
[ 588.743064][T10102] ext4_bread+0x2a/0x180
[ 588.743087][T10102] ext4_append+0x2ba/0x560
[ 588.743123][T10102] ? __pfx_ext4_append+0x10/0x10
[ 588.743151][T10102] ? set_nlink+0x5f/0x170
[ 588.743169][T10102] ext4_init_new_dir+0x11f/0x1c0
[ 588.743194][T10102] ext4_mkdir+0x49b/0xbf0
[ 588.743227][T10102] ? __pfx_ext4_mkdir+0x10/0x10
[ 588.743252][T10102] ? inode_permission+0x2fd/0x5f0
[ 588.743268][T10102] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 588.743287][T10102] vfs_mkdir+0x753/0x870
[ 588.743316][T10102] do_mkdirat+0x27d/0x4b0
[ 588.743342][T10102] ? __pfx_do_mkdirat+0x10/0x10
[ 588.743359][T10102] ? strncpy_from_user+0x150/0x2b0
[ 588.743385][T10102] ? getname_flags+0x1e4/0x540
[ 588.743406][T10102] __x64_sys_mkdir+0x6c/0x80
[ 588.743427][T10102] do_syscall_64+0xe2/0xf80
[ 588.743445][T10102] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 588.743460][T10102] ? trace_irq_disable+0x37/0x100
[ 588.743475][T10102] ? clear_bhb_loop+0x60/0xb0
[ 588.743494][T10102] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 588.743509][T10102] RIP: 0033:0x7f4b1e5c82d7
[ 588.743524][T10102] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 588.743537][T10102] RSP: 002b:00007ffc240a1a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 588.743554][T10102] RAX: ffffffffffffffda RBX: 00007ffc240a1b82 RCX: 00007f4b1e5c82d7
[ 588.743566][T10102] RDX: 000000000d401d16 RSI: 00000000000001c0 RDI: 00007ffc240a1b70
[ 588.743577][T10102] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 588.743587][T10102] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000d401d16
[ 588.743597][T10102] R13: 00007ffc240a1b82 R14: 0000000000000004 R15: 00007f4b1e655dc0
[ 588.743626][T10102]
[ 588.747853][ T1531] bridge_slave_0: left allmulticast mode
[ 588.795719][ T6377] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1
[ 588.798582][ T1531] bridge_slave_0: left promiscuous mode
[ 588.806823][ T6377] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9
[ 588.810219][ T1531] bridge0: port 1(bridge_slave_0) entered disabled state
[ 588.818099][ T6377] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9
[ 588.833406][T10119] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1
[ 588.834526][ T6377] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4
[ 588.853448][T10119] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9
[ 588.862648][ T6377] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2
[ 588.873937][T10119] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9
[ 589.280893][ T6377] Bluetooth: hci1: command tx timeout
[ 589.304669][T10119] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4
[ 589.480899][T10119] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2
[ 589.738121][ T1531] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 589.749971][ T1531] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 589.760349][ T1531] bond0 (unregistering): Released all slaves
[ 589.854682][ T9147] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 589.892253][ T9147] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 589.906687][T10041] chnl_net:caif_netlink_parms(): no params data found
[ 590.060264][ T3539] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 590.073881][ T3539] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 590.106793][ T9028] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 590.121273][ T9028] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 590.261914][ T9909] CPU: 1 UID: 0 PID: 9909 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 590.261941][ T9909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 590.261951][ T9909] Call Trace:
[ 590.261958][ T9909]
[ 590.261966][ T9909] dump_stack_lvl+0xe8/0x150
[ 590.261991][ T9909] ext4_cache_extents+0x31a/0x340
[ 590.262011][ T9909] ? ext4_find_extent+0x2e3/0xa20
[ 590.262035][ T9909] ext4_find_extent+0x3a9/0xa20
[ 590.262061][ T9909] ext4_ext_map_blocks+0x283/0x5760
[ 590.262092][ T9909] ? __lock_acquire+0x6b5/0x2cf0
[ 590.262122][ T9909] ? look_up_lock_class+0x57/0x110
[ 590.262143][ T9909] ? register_lock_class+0x31/0x2e0
[ 590.262166][ T9909] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 590.262188][ T9909] ? __lock_acquire+0x6b5/0x2cf0
[ 590.262239][ T9909] ext4_map_query_blocks+0x13b/0xa00
[ 590.262261][ T9909] ? ext4_map_blocks+0x42c/0x11d0
[ 590.262288][ T9909] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 590.262318][ T9909] ? down_read+0x272/0x2e0
[ 590.262336][ T9909] ? ext4_map_blocks+0x259/0x11d0
[ 590.262359][ T9909] ext4_map_blocks+0x444/0x11d0
[ 590.262393][ T9909] ? __pfx_ext4_map_blocks+0x10/0x10
[ 590.262433][ T9909] ext4_append+0x22e/0x560
[ 590.262460][ T9909] ? __pfx_ext4_append+0x10/0x10
[ 590.262488][ T9909] ? set_nlink+0x5f/0x170
[ 590.262506][ T9909] ext4_init_new_dir+0x11f/0x1c0
[ 590.262531][ T9909] ext4_mkdir+0x49b/0xbf0
[ 590.262565][ T9909] ? __pfx_ext4_mkdir+0x10/0x10
[ 590.262590][ T9909] ? inode_permission+0x2fd/0x5f0
[ 590.262607][ T9909] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 590.262626][ T9909] vfs_mkdir+0x753/0x870
[ 590.262654][ T9909] do_mkdirat+0x27d/0x4b0
[ 590.262681][ T9909] ? __pfx_do_mkdirat+0x10/0x10
[ 590.262706][ T9909] ? getname_flags+0x1e4/0x540
[ 590.262725][ T9909] __x64_sys_mkdirat+0x87/0xa0
[ 590.262747][ T9909] do_syscall_64+0xe2/0xf80
[ 590.262766][ T9909] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 590.262781][ T9909] ? trace_irq_disable+0x37/0x100
[ 590.262795][ T9909] ? clear_bhb_loop+0x60/0xb0
[ 590.262815][ T9909] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 590.262830][ T9909] RIP: 0033:0x7f818e199d97
[ 590.262847][ T9909] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 590.262860][ T9909] RSP: 002b:00007ffd039fb748 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 590.262879][ T9909] RAX: ffffffffffffffda RBX: 00007f818e205adc RCX: 00007f818e199d97
[ 590.262891][ T9909] RDX: 00000000000001ff RSI: 00007f818e205adc RDI: 00000000ffffff9c
[ 590.262902][ T9909] RBP: 00007ffd039fb7d0 R08: 0000000000000000 R09: 0000000000000000
[ 590.262912][ T9909] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd039fb7d8
[ 590.262923][ T9909] R13: 0000000000000002 R14: 00007ffd039fb9b8 R15: 0000000000000000
[ 590.262952][ T9909]
[ 590.263025][ T9909] CPU: 1 UID: 0 PID: 9909 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 590.263043][ T9909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 590.263053][ T9909] Call Trace:
[ 590.263060][ T9909]
[ 590.263067][ T9909] dump_stack_lvl+0xe8/0x150
[ 590.263087][ T9909] ext4_cache_extents+0x31a/0x340
[ 590.263105][ T9909] ? ext4_find_extent+0x2e3/0xa20
[ 590.263129][ T9909] ext4_find_extent+0x3a9/0xa20
[ 590.263155][ T9909] ext4_ext_map_blocks+0x283/0x5760
[ 590.263183][ T9909] ? rcu_is_watching+0x15/0xb0
[ 590.263214][ T9909] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 590.263236][ T9909] ? __lock_acquire+0x6b5/0x2cf0
[ 590.263261][ T9909] ? __lock_acquire+0x6b5/0x2cf0
[ 590.263286][ T9909] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 590.263310][ T9909] ? ext4_map_blocks+0x7b5/0x11d0
[ 590.263352][ T9909] ext4_map_create_blocks+0x11d/0x540
[ 590.263382][ T9909] ext4_map_blocks+0x7cd/0x11d0
[ 590.263413][ T9909] ? __pfx_ext4_map_blocks+0x10/0x10
[ 590.263450][ T9909] ext4_getblk+0x1ca/0x780
[ 590.263478][ T9909] ? __pfx_ext4_getblk+0x10/0x10
[ 590.263512][ T9909] ext4_bread+0x2a/0x180
[ 590.263536][ T9909] ext4_append+0x2ba/0x560
[ 590.263563][ T9909] ? __pfx_ext4_append+0x10/0x10
[ 590.263591][ T9909] ? set_nlink+0x5f/0x170
[ 590.263609][ T9909] ext4_init_new_dir+0x11f/0x1c0
[ 590.263633][ T9909] ext4_mkdir+0x49b/0xbf0
[ 590.263667][ T9909] ? __pfx_ext4_mkdir+0x10/0x10
[ 590.263693][ T9909] ? inode_permission+0x2fd/0x5f0
[ 590.263709][ T9909] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 590.263728][ T9909] vfs_mkdir+0x753/0x870
[ 590.263758][ T9909] do_mkdirat+0x27d/0x4b0
[ 590.263783][ T9909] ? __pfx_do_mkdirat+0x10/0x10
[ 590.263808][ T9909] ? getname_flags+0x1e4/0x540
[ 590.263828][ T9909] __x64_sys_mkdirat+0x87/0xa0
[ 590.263851][ T9909] do_syscall_64+0xe2/0xf80
[ 590.263870][ T9909] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 590.263885][ T9909] ? trace_irq_disable+0x37/0x100
[ 590.263899][ T9909] ? clear_bhb_loop+0x60/0xb0
[ 590.263919][ T9909] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 590.263934][ T9909] RIP: 0033:0x7f818e199d97
[ 590.263949][ T9909] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 590.263962][ T9909] RSP: 002b:00007ffd039fb748 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
[ 590.263979][ T9909] RAX: ffffffffffffffda RBX: 00007f818e205adc RCX: 00007f818e199d97
[ 590.263991][ T9909] RDX: 00000000000001ff RSI: 00007f818e205adc RDI: 00000000ffffff9c
[ 590.264002][ T9909] RBP: 00007ffd039fb7d0 R08: 0000000000000000 R09: 0000000000000000
[ 590.264013][ T9909] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd039fb7d8
[ 590.264023][ T9909] R13: 0000000000000002 R14: 00007ffd039fb9b8 R15: 0000000000000000
[ 590.264050][ T9909]
[ 590.878156][ T9147] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 590.895100][ T9147] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 590.921478][T10119] Bluetooth: hci4: command tx timeout
[ 590.939401][T10041] bridge0: port 1(bridge_slave_0) entered blocking state
[ 590.967193][T10041] bridge0: port 1(bridge_slave_0) entered disabled state
[ 590.983609][T10041] bridge_slave_0: entered allmulticast mode
[ 591.063663][T10137] loop9: detected capacity change from 0 to 1024
[ 591.073808][T10041] bridge_slave_0: entered promiscuous mode
[ 591.088838][T10041] bridge0: port 2(bridge_slave_1) entered blocking state
[ 591.099599][T10041] bridge0: port 2(bridge_slave_1) entered disabled state
[ 591.109487][T10041] bridge_slave_1: entered allmulticast mode
[ 591.119182][T10041] bridge_slave_1: entered promiscuous mode
[ 591.132405][T10137] EXT4-fs (loop9): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 591.158583][T10143] EXT4-fs warning (device loop9): ext4_cache_extents:532: inode #2: comm syz.9.196: ext4_cache_extents: caching extents
[ 591.158583][T10143]
[ 591.174948][T10143] EXT4-fs warning (device loop9): ext4_es_cache_extent:1045: inode #2: comm syz.9.196: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 591.174948][T10143]
[ 591.195281][T10143] EXT4-fs warning (device loop9): __es_insert_extent:852: inode #2: comm syz.9.196: __es_insert_extent: add [0, 0, 16, 0x1]
[ 591.195281][T10143]
[ 591.215454][ T9929] CPU: 0 UID: 0 PID: 9929 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 591.215479][ T9929] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 591.215489][ T9929] Call Trace:
[ 591.215496][ T9929]
[ 591.215503][ T9929] dump_stack_lvl+0xe8/0x150
[ 591.215527][ T9929] ext4_cache_extents+0x31a/0x340
[ 591.215546][ T9929] ? ext4_find_extent+0x2e3/0xa20
[ 591.215570][ T9929] ext4_find_extent+0x3a9/0xa20
[ 591.215596][ T9929] ext4_ext_map_blocks+0x283/0x5760
[ 591.215629][ T9929] ? __lock_acquire+0x6b5/0x2cf0
[ 591.215662][ T9929] ? look_up_lock_class+0x57/0x110
[ 591.215682][ T9929] ? register_lock_class+0x31/0x2e0
[ 591.215705][ T9929] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 591.215728][ T9929] ? __lock_acquire+0x6b5/0x2cf0
[ 591.215771][ T9929] ext4_map_query_blocks+0x13b/0xa00
[ 591.215792][ T9929] ? ext4_map_blocks+0x42c/0x11d0
[ 591.215817][ T9929] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 591.215843][ T9929] ? down_read+0x272/0x2e0
[ 591.215868][ T9929] ? ext4_map_blocks+0x259/0x11d0
[ 591.215889][ T9929] ext4_map_blocks+0x444/0x11d0
[ 591.215918][ T9929] ? __pfx_ext4_map_blocks+0x10/0x10
[ 591.215951][ T9929] ext4_append+0x22e/0x560
[ 591.215974][ T9929] ? __pfx_ext4_append+0x10/0x10
[ 591.216002][ T9929] ? set_nlink+0x5f/0x170
[ 591.216019][ T9929] ext4_init_new_dir+0x11f/0x1c0
[ 591.216042][ T9929] ext4_mkdir+0x49b/0xbf0
[ 591.216073][ T9929] ? __pfx_ext4_mkdir+0x10/0x10
[ 591.216097][ T9929] ? inode_permission+0x2fd/0x5f0
[ 591.216114][ T9929] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 591.216134][ T9929] vfs_mkdir+0x753/0x870
[ 591.216162][ T9929] do_mkdirat+0x27d/0x4b0
[ 591.216190][ T9929] ? __pfx_do_mkdirat+0x10/0x10
[ 591.216213][ T9929] ? getname_flags+0x1e4/0x540
[ 591.216232][ T9929] __x64_sys_mkdirat+0x87/0xa0
[ 591.216253][ T9929] do_syscall_64+0xe2/0xf80
[ 591.216270][ T9929] ? rcu_is_watching+0x15/0xb0
[ 591.216290][ T9929] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 591.216305][ T9929] ? clear_bhb_loop+0x60/0xb0
[ 591.216324][ T9929] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 591.216338][ T9929] RIP: 0033:0x7f9813f99d97
[ 591.216354][ T9929] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 591.216367][ T9929] RSP: 002b:00007ffe19f66528 EFLAGS: 00000202 ORIG_RAX: 0000000000000102
[ 591.216383][ T9929] RAX: ffffffffffffffda RBX: 00007f9814005adc RCX: 00007f9813f99d97
[ 591.216394][ T9929] RDX: 00000000000001ff RSI: 00007f9814005adc RDI: 00000000ffffff9c
[ 591.216405][ T9929] RBP: 00007ffe19f665b0 R08: 0000000000000000 R09: 0000000000000000
[ 591.216415][ T9929] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe19f665b8
[ 591.216425][ T9929] R13: 0000000000000002 R14: 00007ffe19f66798 R15: 0000000000000000
[ 591.216450][ T9929]
[ 591.216515][ T9929] CPU: 0 UID: 0 PID: 9929 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 591.216531][ T9929] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 591.216540][ T9929] Call Trace:
[ 591.216546][ T9929]
[ 591.216552][ T9929] dump_stack_lvl+0xe8/0x150
[ 591.216571][ T9929] ext4_cache_extents+0x31a/0x340
[ 591.216587][ T9929] ? ext4_find_extent+0x2e3/0xa20
[ 591.216608][ T9929] ext4_find_extent+0x3a9/0xa20
[ 591.216631][ T9929] ext4_ext_map_blocks+0x283/0x5760
[ 591.216656][ T9929] ? rcu_is_watching+0x15/0xb0
[ 591.216677][ T9929] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 591.216681][T10143] EXT4-fs warning (device loop9): ext4_es_cache_extent:1045: inode #2: comm syz.9.196: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 591.216681][T10143]
[ 591.216699][ T9929] ? __lock_acquire+0x6b5/0x2cf0
[ 591.216724][ T9929] ? __lock_acquire+0x6b5/0x2cf0
[ 591.216743][ T9929] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 591.216765][ T9929] ? ext4_map_blocks+0x7b5/0x11d0
[ 591.216807][ T9929] ext4_map_create_blocks+0x11d/0x540
[ 591.216836][ T9929] ext4_map_blocks+0x7cd/0x11d0
[ 591.216876][ T9929] ? __pfx_ext4_map_blocks+0x10/0x10
[ 591.216913][ T9929] ext4_getblk+0x1ca/0x780
[ 591.216938][ T9929] ? __pfx_ext4_getblk+0x10/0x10
[ 591.216974][ T9929] ext4_bread+0x2a/0x180
[ 591.216996][ T9929] ext4_append+0x2ba/0x560
[ 591.217022][ T9929] ? __pfx_ext4_append+0x10/0x10
[ 591.217048][ T9929] ? set_nlink+0x5f/0x170
[ 591.217065][ T9929] ext4_init_new_dir+0x11f/0x1c0
[ 591.217089][ T9929] ext4_mkdir+0x49b/0xbf0
[ 591.217121][ T9929] ? __pfx_ext4_mkdir+0x10/0x10
[ 591.217145][ T9929] ? inode_permission+0x2fd/0x5f0
[ 591.217161][ T9929] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 591.217179][ T9929] vfs_mkdir+0x753/0x870
[ 591.217206][ T9929] do_mkdirat+0x27d/0x4b0
[ 591.217232][ T9929] ? __pfx_do_mkdirat+0x10/0x10
[ 591.217254][ T9929] ? getname_flags+0x1e4/0x540
[ 591.217274][ T9929] __x64_sys_mkdirat+0x87/0xa0
[ 591.217295][ T9929] do_syscall_64+0xe2/0xf80
[ 591.217312][ T9929] ? rcu_is_watching+0x15/0xb0
[ 591.217331][ T9929] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 591.217346][ T9929] ? clear_bhb_loop+0x60/0xb0
[ 591.217365][ T9929] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 591.217380][ T9929] RIP: 0033:0x7f9813f99d97
[ 591.217394][ T9929] Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 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
[ 591.217407][ T9929] RSP: 002b:00007ffe19f66528 EFLAGS: 00000202 ORIG_RAX: 0000000000000102
[ 591.217423][ T9929] RAX: ffffffffffffffda RBX: 00007f9814005adc RCX: 00007f9813f99d97
[ 591.217434][ T9929] RDX: 00000000000001ff RSI: 00007f9814005adc RDI: 00000000ffffff9c
[ 591.217445][ T9929] RBP: 00007ffe19f665b0 R08: 0000000000000000 R09: 0000000000000000
[ 591.217454][ T9929] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe19f665b8
[ 591.217464][ T9929] R13: 0000000000000002 R14: 00007ffe19f66798 R15: 0000000000000000
[ 591.217491][ T9929]
[ 591.368034][T10119] Bluetooth: hci1: command tx timeout
[ 591.493108][T10143] EXT4-fs warning (device loop9): ext4_es_remove_extent:1657: inode #18: comm syz.9.196: ext4_es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 591.493108][T10143]
[ 591.525775][T10119] Bluetooth: hci2: command tx timeout
[ 591.536279][ T9909] EXT4-fs warning (device loop9): ext4_cache_extents:532: inode #11: comm syz-executor: ext4_cache_extents: caching extents
[ 591.536279][ T9909]
[ 591.570655][T10143] EXT4-fs warning (device loop9): __es_remove_extent:1512: inode #18: comm syz.9.196: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 591.570655][T10143]
[ 591.579445][ T9909] EXT4-fs warning (device loop9): ext4_es_cache_extent:1045: inode #11: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:11 pblk:32 status:0x1
[ 591.579445][ T9909]
[ 591.600161][T10143] EXT4-fs warning (device loop9): ext4_ext_remove_space:2857: inode #18: comm syz.9.196: ext4_ext_remove_space: remove range [0, -2] from extent tree
[ 591.600161][T10143]
[ 591.618319][ T9909] EXT4-fs warning (device loop9): __es_insert_extent:852: inode #11: comm syz-executor: __es_insert_extent: add [0, 10, 32, 0x1]
[ 591.618319][ T9909]
[ 591.861542][T10154] loop0: detected capacity change from 0 to 1024
[ 591.984152][T10143] EXT4-fs error (device loop9): ext4_mb_mark_diskspace_used:4242: comm syz.9.196: Allocating blocks 497-513 which overlap fs metadata
[ 592.014969][ T1531] hsr_slave_0: left promiscuous mode
[ 592.043855][ T1531] hsr_slave_1: left promiscuous mode
[ 592.059475][ T1531] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 592.068625][ T1531] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 592.074507][T10143] EXT4-fs (loop9): pa ffff888060383488: logic 256, phys. 385, len 8
[ 592.086420][T10143] EXT4-fs error (device loop9): ext4_mb_release_inode_pa:5486: group 0, free 0, pa_free 1
[ 592.100052][ T1531] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 592.116696][ T1531] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 592.129945][T10154] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[ 592.155865][T10159] EXT4-fs warning (device loop0): ext4_cache_extents:532: inode #2: comm syz.0.199: ext4_cache_extents: caching extents
[ 592.155865][T10159]
[ 592.179063][T10159] EXT4-fs warning (device loop0): ext4_es_cache_extent:1045: inode #2: comm syz.0.199: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 592.179063][T10159]
[ 592.190677][ T1531] veth1_macvtap: left promiscuous mode
[ 592.206158][ T1531] veth0_macvtap: left promiscuous mode
[ 592.213935][ T1531] veth1_vlan: left promiscuous mode
[ 592.219856][ T1531] veth0_vlan: left promiscuous mode
[ 592.228306][T10159] EXT4-fs warning (device loop0): __es_insert_extent:852: inode #2: comm syz.0.199: __es_insert_extent: add [0, 0, 16, 0x1]
[ 592.228306][T10159]
[ 592.249771][T10159] EXT4-fs warning (device loop0): ext4_es_cache_extent:1045: inode #2: comm syz.0.199: ext4_es_cache_extent: cache extent lblk:0 len:1 pblk:16 status:0x1
[ 592.249771][T10159]
[ 592.286025][T10159] EXT4-fs warning (device loop0): ext4_es_remove_extent:1657: inode #18: comm syz.0.199: ext4_es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 592.286025][T10159]
[ 592.315049][ T9929] EXT4-fs warning (device loop0): ext4_cache_extents:532: inode #11: comm syz-executor: ext4_cache_extents: caching extents
[ 592.315049][ T9929]
[ 592.335004][T10159] EXT4-fs warning (device loop0): __es_remove_extent:1512: inode #18: comm syz.0.199: __es_remove_extent: remove [0,4294967294] range from extent status tree of inode 18
[ 592.335004][T10159]
[ 592.360205][ T9929] EXT4-fs warning (device loop0): ext4_es_cache_extent:1045: inode #11: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:11 pblk:32 status:0x1
[ 592.360205][ T9929]
[ 592.383827][T10159] EXT4-fs warning (device loop0): ext4_ext_remove_space:2857: inode #18: comm syz.0.199: ext4_ext_remove_space: remove range [0, -2] from extent tree
[ 592.383827][T10159]
[ 592.413432][ T9929] EXT4-fs warning (device loop0): __es_insert_extent:852: inode #11: comm syz-executor: __es_insert_extent: add [0, 10, 32, 0x1]
[ 592.413432][ T9929]
[ 592.838637][ T1531] team0 (unregistering): Port device team_slave_1 removed
[ 592.886933][ T1531] team0 (unregistering): Port device team_slave_0 removed
[ 592.967310][T10119] Bluetooth: hci4: command tx timeout
[ 593.289973][T10041] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 593.354290][T10041] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 593.453932][T10143] EXT4-fs (loop9): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[ 593.473224][T10159] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
2026/02/10 20:53:47 executed programs: 202
[ 593.505007][T10041] team0: Port device team_slave_0 added
[ 593.527610][T10119] Bluetooth: hci1: command tx timeout
[ 593.536213][T10041] team0: Port device team_slave_1 added
[ 593.601765][T10119] Bluetooth: hci2: command tx timeout
[ 593.672053][T10166] EXT4-fs warning: 34 callbacks suppressed
[ 593.672072][T10166] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2234: comm syz-executor: ext4_cache_extents: caching extents
[ 593.672072][T10166]
[ 593.697270][T10166] CPU: 1 UID: 0 PID: 10166 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 593.697300][T10166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 593.697309][T10166] Call Trace:
[ 593.697316][T10166]
[ 593.697324][T10166] dump_stack_lvl+0xe8/0x150
[ 593.697348][T10166] ext4_cache_extents+0x31a/0x340
[ 593.697385][T10166] ? ext4_find_extent+0x2e3/0xa20
[ 593.697422][T10166] ext4_find_extent+0x3a9/0xa20
[ 593.697448][T10166] ext4_ext_map_blocks+0x283/0x5760
[ 593.697482][T10166] ? __lock_acquire+0x6b5/0x2cf0
[ 593.697514][T10166] ? look_up_lock_class+0x57/0x110
[ 593.697543][T10166] ? register_lock_class+0x31/0x2e0
[ 593.697563][T10166] ? look_up_lock_class+0x57/0x110
[ 593.697583][T10166] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 593.697606][T10166] ? __lock_acquire+0x6b5/0x2cf0
[ 593.697649][T10166] ext4_map_query_blocks+0x13b/0xa00
[ 593.697671][T10166] ? ext4_map_blocks+0x42c/0x11d0
[ 593.697699][T10166] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 593.697727][T10166] ? down_read+0x272/0x2e0
[ 593.697750][T10166] ? ext4_map_blocks+0x259/0x11d0
[ 593.697774][T10166] ext4_map_blocks+0x444/0x11d0
[ 593.697808][T10166] ? __pfx_ext4_map_blocks+0x10/0x10
[ 593.697846][T10166] ext4_append+0x22e/0x560
[ 593.697874][T10166] ? __pfx_ext4_append+0x10/0x10
[ 593.697901][T10166] ? set_nlink+0x5f/0x170
[ 593.697920][T10166] ext4_init_new_dir+0x11f/0x1c0
[ 593.697945][T10166] ext4_mkdir+0x49b/0xbf0
[ 593.697979][T10166] ? __pfx_ext4_mkdir+0x10/0x10
[ 593.698004][T10166] ? inode_permission+0x2fd/0x5f0
[ 593.698021][T10166] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 593.698040][T10166] vfs_mkdir+0x753/0x870
[ 593.698069][T10166] do_mkdirat+0x27d/0x4b0
[ 593.698096][T10166] ? __pfx_do_mkdirat+0x10/0x10
[ 593.698113][T10166] ? strncpy_from_user+0x150/0x2b0
[ 593.698140][T10166] ? getname_flags+0x1e4/0x540
[ 593.698161][T10166] __x64_sys_mkdir+0x6c/0x80
[ 593.698182][T10166] do_syscall_64+0xe2/0xf80
[ 593.698201][T10166] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 593.698217][T10166] ? trace_irq_disable+0x37/0x100
[ 593.698231][T10166] ? clear_bhb_loop+0x60/0xb0
[ 593.698254][T10166] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 593.698270][T10166] RIP: 0033:0x7fa616dc82d7
[ 593.698287][T10166] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 593.698305][T10166] RSP: 002b:00007ffc1fe495f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 593.698322][T10166] RAX: ffffffffffffffda RBX: 00007ffc1fe49722 RCX: 00007fa616dc82d7
[ 593.698334][T10166] RDX: 000000000648908b RSI: 00000000000001c0 RDI: 00007ffc1fe49710
[ 593.698345][T10166] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 593.698356][T10166] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000648908b
[ 593.698366][T10166] R13: 00007ffc1fe49722 R14: 0000000000000004 R15: 00007fa616e55dc0
[ 593.698397][T10166]
[ 593.698480][T10166] EXT4-fs warning (device sda1): ext4_es_cache_extent:1045: inode #2234: comm syz-executor: ext4_es_cache_extent: cache extent lblk:0 len:-1 pblk:-1 status:0x8
[ 593.698480][T10166]
[ 593.909680][T10041] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 594.045928][T10166] EXT4-fs warning (device sda1): __es_insert_extent:852: inode #2234: comm syz-executor: __es_insert_extent: add [0, -2, 576460752303423487, 0x8]
[ 594.045928][T10166]
[ 594.067827][T10166] EXT4-fs warning (device sda1): ext4_cache_extents:532: inode #2234: comm syz-executor: ext4_cache_extents: caching extents
[ 594.067827][T10166]
[ 594.084509][T10041] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 594.100935][T10166] CPU: 1 UID: 0 PID: 10166 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 594.100961][T10166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 594.100972][T10166] Call Trace:
[ 594.100982][T10166]
[ 594.100990][T10166] dump_stack_lvl+0xe8/0x150
[ 594.101015][T10166] ext4_cache_extents+0x31a/0x340
[ 594.101058][T10166] ? ext4_find_extent+0x2e3/0xa20
[ 594.101081][T10166] ext4_find_extent+0x3a9/0xa20
[ 594.101113][T10166] ext4_ext_map_blocks+0x283/0x5760
[ 594.101147][T10166] ? rcu_is_watching+0x15/0xb0
[ 594.101170][T10166] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 594.101191][T10166] ? __lock_acquire+0x6b5/0x2cf0
[ 594.101216][T10166] ? __lock_acquire+0x6b5/0x2cf0
[ 594.101240][T10166] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 594.101264][T10166] ? ext4_map_blocks+0x7b5/0x11d0
[ 594.101306][T10166] ext4_map_create_blocks+0x11d/0x540
[ 594.101336][T10166] ext4_map_blocks+0x7cd/0x11d0
[ 594.101368][T10166] ? __pfx_ext4_map_blocks+0x10/0x10
[ 594.101453][T10166] ext4_getblk+0x1ca/0x780
[ 594.101489][T10166] ? __pfx_ext4_getblk+0x10/0x10
[ 594.101520][T10166] ext4_bread+0x2a/0x180
[ 594.101540][T10166] ext4_append+0x2ba/0x560
[ 594.101564][T10166] ? __pfx_ext4_append+0x10/0x10
[ 594.101587][T10166] ? set_nlink+0x5f/0x170
[ 594.101603][T10166] ext4_init_new_dir+0x11f/0x1c0
[ 594.101624][T10166] ext4_mkdir+0x49b/0xbf0
[ 594.101658][T10166] ? __pfx_ext4_mkdir+0x10/0x10
[ 594.101684][T10166] ? inode_permission+0x2fd/0x5f0
[ 594.101701][T10166] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 594.101951][T10166] vfs_mkdir+0x753/0x870
[ 594.101982][T10166] do_mkdirat+0x27d/0x4b0
[ 594.102009][T10166] ? __pfx_do_mkdirat+0x10/0x10
[ 594.102027][T10166] ? strncpy_from_user+0x150/0x2b0
[ 594.102065][T10166] ? getname_flags+0x1e4/0x540
[ 594.102093][T10166] __x64_sys_mkdir+0x6c/0x80
[ 594.102114][T10166] do_syscall_64+0xe2/0xf80
[ 594.102133][T10166] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 594.102148][T10166] ? trace_irq_disable+0x37/0x100
[ 594.102162][T10166] ? clear_bhb_loop+0x60/0xb0
[ 594.102181][T10166] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 594.102197][T10166] RIP: 0033:0x7fa616dc82d7
[ 594.102213][T10166] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 594.102227][T10166] RSP: 002b:00007ffc1fe495f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 594.102245][T10166] RAX: ffffffffffffffda RBX: 00007ffc1fe49722 RCX: 00007fa616dc82d7
[ 594.102256][T10166] RDX: 000000000648908b RSI: 00000000000001c0 RDI: 00007ffc1fe49710
[ 594.102267][T10166] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 594.102278][T10166] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000648908b
[ 594.102288][T10166] R13: 00007ffc1fe49722 R14: 0000000000000004 R15: 00007fa616e55dc0
[ 594.102316][T10166]
[ 594.102333][T10166] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6274: inode #2234: comm syz-executor: ext4_mb_new_blocks: Allocation requested for: [0, 0]
[ 594.102333][T10166]
[ 594.150971][T10041] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 594.198789][T10166] EXT4-fs warning (device sda1): ext4_mb_regular_allocator:3120: inode #2234: comm syz-executor: ext4_mb_regular_allocator: Best len 1, origin len 1, ac_status 2, ac_flags 0x0, cr 1 ret 0
[ 594.198789][T10166]
[ 594.335970][T10117] chnl_net:caif_netlink_parms(): no params data found
[ 594.380399][T10166] EXT4-fs warning (device sda1): ext4_mb_new_blocks:6363: inode #2234: comm syz-executor: ext4_mb_new_blocks: Allocation found: [0, 0], pblk:5916 len:1
[ 594.380399][T10166]
[ 594.513425][T10166] EXT4-fs warning (device sda1): ext4_ext_insert_extent:2017: inode #2234: comm syz-executor: ext4_ext_insert_extent: add newext [0, 1, 5916, unwrit:0] to extent tree.
[ 594.513425][T10166]
[ 594.514688][T10041] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 594.545698][T10166] EXT4-fs warning (device sda1): ext4_es_insert_extent:931: inode #2234: comm syz-executor: ext4_es_insert_extent: add [0, 0] 5916 1 0 to extent status tree of inode 2234
[ 594.545698][T10166]
[ 594.567849][T10166] EXT4-fs warning (device sda1): __es_remove_extent:1512: inode #2234: comm syz-executor: __es_remove_extent: remove [0,0] range from extent status tree of inode 2234
[ 594.567849][T10166]
[ 594.571183][T10041] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 594.592252][T10169] CPU: 1 UID: 0 PID: 10169 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 594.592277][T10169] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 594.592287][T10169] Call Trace:
[ 594.592308][T10169]
[ 594.592315][T10169] dump_stack_lvl+0xe8/0x150
[ 594.592339][T10169] ext4_cache_extents+0x31a/0x340
[ 594.592358][T10169] ? ext4_find_extent+0x2e3/0xa20
[ 594.592381][T10169] ext4_find_extent+0x3a9/0xa20
[ 594.592407][T10169] ext4_ext_map_blocks+0x283/0x5760
[ 594.592438][T10169] ? __lock_acquire+0x6b5/0x2cf0
[ 594.592479][T10169] ? look_up_lock_class+0x57/0x110
[ 594.592499][T10169] ? register_lock_class+0x31/0x2e0
[ 594.592521][T10169] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 594.592544][T10169] ? __lock_acquire+0x6b5/0x2cf0
[ 594.592584][T10169] ext4_map_query_blocks+0x13b/0xa00
[ 594.592605][T10169] ? ext4_map_blocks+0x42c/0x11d0
[ 594.592633][T10169] ? __pfx_ext4_map_query_blocks+0x10/0x10
[ 594.592661][T10169] ? down_read+0x272/0x2e0
[ 594.592679][T10169] ? ext4_map_blocks+0x259/0x11d0
[ 594.592702][T10169] ext4_map_blocks+0x444/0x11d0
[ 594.592790][T10169] ? __pfx_ext4_map_blocks+0x10/0x10
[ 594.592847][T10169] ext4_append+0x22e/0x560
[ 594.592877][T10169] ? __pfx_ext4_append+0x10/0x10
[ 594.592904][T10169] ? set_nlink+0x5f/0x170
[ 594.592922][T10169] ext4_init_new_dir+0x11f/0x1c0
[ 594.592947][T10169] ext4_mkdir+0x49b/0xbf0
[ 594.592980][T10169] ? __pfx_ext4_mkdir+0x10/0x10
[ 594.593004][T10169] ? inode_permission+0x2fd/0x5f0
[ 594.593020][T10169] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 594.593039][T10169] vfs_mkdir+0x753/0x870
[ 594.593068][T10169] do_mkdirat+0x27d/0x4b0
[ 594.593093][T10169] ? __pfx_do_mkdirat+0x10/0x10
[ 594.593111][T10169] ? strncpy_from_user+0x150/0x2b0
[ 594.593148][T10169] ? getname_flags+0x1e4/0x540
[ 594.593168][T10169] __x64_sys_mkdir+0x6c/0x80
[ 594.593189][T10169] do_syscall_64+0xe2/0xf80
[ 594.593209][T10169] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 594.593224][T10169] ? trace_irq_disable+0x37/0x100
[ 594.593239][T10169] ? clear_bhb_loop+0x60/0xb0
[ 594.593258][T10169] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 594.593274][T10169] RIP: 0033:0x7f73661c82d7
[ 594.593292][T10169] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 594.593305][T10169] RSP: 002b:00007ffe3c229c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 594.593332][T10169] RAX: ffffffffffffffda RBX: 00007ffe3c229d92 RCX: 00007f73661c82d7
[ 594.593344][T10169] RDX: 0000000010cbc37f RSI: 00000000000001c0 RDI: 00007ffe3c229d80
[ 594.593354][T10169] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 594.593364][T10169] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000010cbc37f
[ 594.593374][T10169] R13: 00007ffe3c229d92 R14: 0000000000000004 R15: 00007f7366255dc0
[ 594.593403][T10169]
[ 594.593504][T10169] CPU: 1 UID: 0 PID: 10169 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 594.593523][T10169] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 594.593533][T10169] Call Trace:
[ 594.593541][T10169]
[ 594.593548][T10169] dump_stack_lvl+0xe8/0x150
[ 594.593569][T10169] ext4_cache_extents+0x31a/0x340
[ 594.593589][T10169] ? ext4_find_extent+0x2e3/0xa20
[ 594.593617][T10169] ext4_find_extent+0x3a9/0xa20
[ 594.593643][T10169] ext4_ext_map_blocks+0x283/0x5760
[ 594.593673][T10169] ? rcu_is_watching+0x15/0xb0
[ 594.593696][T10169] ? ext4_ext_map_blocks+0x2c56/0x5760
[ 594.593717][T10169] ? __lock_acquire+0x6b5/0x2cf0
[ 594.593741][T10169] ? __lock_acquire+0x6b5/0x2cf0
[ 594.593763][T10169] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 594.593785][T10169] ? ext4_map_blocks+0x7b5/0x11d0
[ 594.593828][T10169] ext4_map_create_blocks+0x11d/0x540
[ 594.593859][T10169] ext4_map_blocks+0x7cd/0x11d0
[ 594.593892][T10169] ? __pfx_ext4_map_blocks+0x10/0x10
[ 594.593929][T10169] ext4_getblk+0x1ca/0x780
[ 594.593956][T10169] ? __pfx_ext4_getblk+0x10/0x10
[ 594.593991][T10169] ext4_bread+0x2a/0x180
[ 594.594015][T10169] ext4_append+0x2ba/0x560
[ 594.594041][T10169] ? __pfx_ext4_append+0x10/0x10
[ 594.594068][T10169] ? set_nlink+0x5f/0x170
[ 594.594086][T10169] ext4_init_new_dir+0x11f/0x1c0
[ 594.594110][T10169] ext4_mkdir+0x49b/0xbf0
[ 594.594143][T10169] ? __pfx_ext4_mkdir+0x10/0x10
[ 594.594168][T10169] ? inode_permission+0x2fd/0x5f0
[ 594.594183][T10169] ? bpf_lsm_inode_mkdir+0x9/0x20
[ 594.594202][T10169] vfs_mkdir+0x753/0x870
[ 594.594230][T10169] do_mkdirat+0x27d/0x4b0
[ 594.594255][T10169] ? __pfx_do_mkdirat+0x10/0x10
[ 594.594273][T10169] ? strncpy_from_user+0x150/0x2b0
[ 594.594299][T10169] ? getname_flags+0x1e4/0x540
[ 594.594319][T10169] __x64_sys_mkdir+0x6c/0x80
[ 594.594339][T10169] do_syscall_64+0xe2/0xf80
[ 594.594357][T10169] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 594.594372][T10169] ? trace_irq_disable+0x37/0x100
[ 594.594385][T10169] ? clear_bhb_loop+0x60/0xb0
[ 594.594404][T10169] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 594.594426][T10169] RIP: 0033:0x7f73661c82d7
[ 594.594445][T10169] Code: 94 c0 48 8b 54 24 48 64 48 2b 14 25 28 00 00 00 75 08 0f b6 c0 48 83 c4 58 c3 e8 14 51 fd ff 0f 1f 40 00 b8 53 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
[ 594.594458][T10169] RSP: 002b:00007ffe3c229c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
[ 594.594630][T10169] RAX: ffffffffffffffda RBX: 00007ffe3c229d92 RCX: 00007f73661c82d7
[ 594.594642][T10169] RDX: 0000000010cbc37f RSI: 00000000000001c0 RDI: 00007ffe3c229d80
[ 594.594653][T10169] RBP: 8421084210842109 R08: 0000000000000000 R09: 0000000000000000
[ 594.594668][T10169] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000010cbc37f
[ 594.594677][T10169] R13: 00007ffe3c229d92 R14: 0000000000000004 R15: 00007f7366255dc0
[ 594.594706][T10169]
[ 594.629102][ T6375] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 594.645256][ T6376] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1
[ 594.651126][ T6375] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 594.665316][ T6376] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9
[ 594.681011][ T6375] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 594.689584][ T6376] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9
[ 594.692904][ T6375] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 594.700085][ T6376] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4
[ 594.705313][ T6375] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 594.711084][ T6376] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2
[ 594.741449][T10041] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 595.041497][ T6376] Bluetooth: hci4: command tx timeout
[ 595.424206][T10115] chnl_net:caif_netlink_parms(): no params data found
[ 595.603100][T10041] hsr_slave_0: entered promiscuous mode
[ 595.610232][T10041] hsr_slave_1: entered promiscuous mode
[ 595.624931][T10117] bridge0: port 1(bridge_slave_0) entered blocking state
[ 595.632916][T10117] bridge0: port 1(bridge_slave_0) entered disabled state
[ 595.640996][T10117] bridge_slave_0: entered allmulticast mode
[ 595.649172][T10117] bridge_slave_0: entered promiscuous mode
[ 595.657641][T10117] bridge0: port 2(bridge_slave_1) entered blocking state
[ 595.665437][T10117] bridge0: port 2(bridge_slave_1) entered disabled state
[ 595.673155][T10117] bridge_slave_1: entered allmulticast mode
[ 595.680666][ T6376] Bluetooth: hci2: command tx timeout
[ 595.687467][T10117] bridge_slave_1: entered promiscuous mode
[ 595.765231][T10115] bridge0: port 1(bridge_slave_0) entered blocking state
[ 595.773528][T10115] bridge0: port 1(bridge_slave_0) entered disabled state
[ 595.781524][T10115] bridge_slave_0: entered allmulticast mode
[ 595.790418][T10115] bridge_slave_0: entered promiscuous mode
[ 595.826486][ T1531] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 595.860143][T10117] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 595.886064][T10115] bridge0: port 2(bridge_slave_1) entered blocking state
[ 595.895557][T10115] bridge0: port 2(bridge_slave_1) entered disabled state
[ 595.904924][T10115] bridge_slave_1: entered allmulticast mode
[ 595.915072][T10115] bridge_slave_1: entered promiscuous mode
[ 595.958655][T10117] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 596.008823][T10115] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 596.053533][ T1531] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 596.085060][T10117] team0: Port device team_slave_0 added
[ 596.098572][T10115] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 596.137816][T10117] team0: Port device team_slave_1 added
[ 596.181932][T10115] team0: Port device team_slave_0 added
[ 596.268080][ T1531] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 596.288146][T10115] team0: Port device team_slave_1 added
[ 596.307403][T10117] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 596.316424][T10117] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 596.349662][T10117] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 596.397311][T10117] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 596.412364][T10117] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem.
[ 596.447455][T10117] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 596.506945][ T1531] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 596.544970][T10115] batman_adv: batadv0: Adding interface: batadv_slave_0