[ 400.685775][T17169] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17169) [ 400.688466][T17169] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 400.774459][T17173] loop0: detected capacity change from 0 to 32768 [ 400.778118][T17173] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17173) [ 400.778261][T17173] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 400.865710][T17175] loop0: detected capacity change from 0 to 32768 [ 400.867657][T17175] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17175) [ 400.870157][T17175] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 400.945888][T17178] loop0: detected capacity change from 0 to 32768 [ 400.947967][T17178] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17178) [ 400.948118][T17178] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 401.058889][T17181] loop0: detected capacity change from 0 to 32768 [ 401.060403][T17181] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 401.149668][T17183] loop0: detected capacity change from 0 to 32768 [ 401.152033][T17183] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17183) [ 401.154457][T17183] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 401.237804][T17186] loop0: detected capacity change from 0 to 32768 [ 401.239934][T17186] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17186) [ 401.242991][T17186] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 401.324636][T17189] loop0: detected capacity change from 0 to 32768 [ 401.326599][T17189] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17189) [ 401.329705][T17189] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 401.412682][T17192] loop0: detected capacity change from 0 to 32768 [ 401.414775][T17192] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17192) [ 401.417671][T17192] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 401.502246][T17195] loop0: detected capacity change from 0 to 32768 [ 401.505469][T17195] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17195) [ 401.508253][T17195] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 401.512149][T17195] FAULT_INJECTION: forcing a failure. [ 401.512149][T17195] name fail_usercopy, interval 1, probability 0, space 0, times 0 [ 401.514573][T17195] CPU: 1 UID: 0 PID: 17195 Comm: syz-executor.0 Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT [ 401.514594][T17195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 401.514600][T17195] Call trace: [ 401.514604][T17195] show_stack+0x2c/0x3c (C) [ 401.514620][T17195] __dump_stack+0x30/0x40 [ 401.514631][T17195] dump_stack_lvl+0xd8/0x12c [ 401.514638][T17195] dump_stack+0x1c/0x28 [ 401.514644][T17195] should_fail_ex+0x41c/0x594 [ 401.514654][T17195] should_fail+0x14/0x24 [ 401.514660][T17195] should_fail_usercopy+0x20/0x30 [ 401.514667][T17195] _inline_copy_from_user+0x40/0x180 [ 401.514673][T17195] kstrtouint_from_user+0xbc/0x158 [ 401.514679][T17195] proc_fail_nth_write+0x94/0x228 [ 401.514688][T17195] vfs_write+0x2b8/0xa3c [ 401.514695][T17195] ksys_write+0x120/0x210 [ 401.514701][T17195] __arm64_sys_write+0x7c/0x90 [ 401.514707][T17195] invoke_syscall+0x98/0x2b8 [ 401.514713][T17195] el0_svc_common+0x130/0x23c [ 401.514718][T17195] do_el0_svc+0x48/0x58 [ 401.514723][T17195] el0_svc+0x58/0x180 [ 401.514729][T17195] el0t_64_sync_handler+0x84/0x12c [ 401.514735][T17195] el0t_64_sync+0x198/0x19c [ 401.619637][T17199] loop0: detected capacity change from 0 to 32768 [ 401.621058][T17199] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17199) [ 401.621173][T17199] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 401.719720][T17201] loop0: detected capacity change from 0 to 32768 [ 401.721855][T17201] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 401.805974][T17203] loop0: detected capacity change from 0 to 32768 [ 401.806706][T17203] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17203) [ 401.806788][T17203] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 401.891159][T17206] loop0: detected capacity change from 0 to 32768 [ 401.893325][T17206] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17206) [ 401.895794][T17206] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 401.982906][T17209] loop0: detected capacity change from 0 to 32768 [ 401.985199][T17209] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17209) [ 401.987666][T17209] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 402.065305][T17212] loop0: detected capacity change from 0 to 32768 [ 402.067232][T17212] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17212) [ 402.067370][T17212] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 402.173167][T17215] loop0: detected capacity change from 0 to 32768 [ 402.174469][T17215] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 402.270970][T17217] loop0: detected capacity change from 0 to 32768 [ 402.273160][T17217] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 402.349396][T17219] loop0: detected capacity change from 0 to 32768 [ 402.350577][T17219] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17219) [ 402.350698][T17219] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 402.452798][T17222] loop0: detected capacity change from 0 to 32768 [ 402.454517][T17222] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 402.536970][T17224] loop0: detected capacity change from 0 to 32768 [ 402.543778][T17224] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17224) [ 402.543910][T17224] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 402.638325][T17227] loop0: detected capacity change from 0 to 32768 [ 402.639200][T17227] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17227) [ 402.639284][T17227] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 402.739840][T17230] loop0: detected capacity change from 0 to 32768 [ 402.743035][T17230] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 402.837629][T17232] loop0: detected capacity change from 0 to 32768 [ 402.839004][T17232] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17232) [ 402.839095][T17232] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 402.941916][T17235] loop0: detected capacity change from 0 to 32768 [ 402.943974][T17235] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 403.043752][T17237] loop0: detected capacity change from 0 to 32768 [ 403.045062][T17237] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor.0 (17237) [ 403.045185][T17237] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 403.526601][ T668] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 403.566621][ T668] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 403.616318][ T668] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 403.676819][ T668] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 403.781060][ T668] bridge_slave_1: left allmulticast mode [ 403.781099][ T668] bridge_slave_1: left promiscuous mode [ 403.781196][ T668] bridge0: port 2(bridge_slave_1) entered disabled state [ 403.783893][ T668] bridge_slave_0: left allmulticast mode [ 403.783905][ T668] bridge_slave_0: left promiscuous mode [ 403.783974][ T668] bridge0: port 1(bridge_slave_0) entered disabled state [ 404.005841][ T668] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 404.032915][ T668] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 404.072300][ T668] bond0 (unregistering): Released all slaves [ 404.397183][ T668] hsr_slave_0: left promiscuous mode [ 404.398621][ T668] hsr_slave_1: left promiscuous mode [ 404.398889][ T668] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 404.398900][ T668] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 404.399858][ T668] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 404.399869][ T668] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 404.406432][ T668] veth1_macvtap: left promiscuous mode [ 404.406481][ T668] veth0_macvtap: left promiscuous mode [ 404.406523][ T668] veth1_vlan: left promiscuous mode [ 404.406556][ T668] veth0_vlan: left promiscuous mode [ 404.519800][ T668] team0 (unregistering): Port device team_slave_1 removed [ 404.527637][ T668] team0 (unregistering): Port device team_slave_0 removed Warning: Permanently added '10.128.0.216' (ED25519) to the list of known hosts. [ 406.018857][ T668] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 406.018885][ T668] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 406.025890][ T668] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 406.025927][ T668] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 406.094329][T17368] loop0: detected capacity change from 0 to 32768 [ 406.095786][T17368] BTRFS error: failed to open device for path /dev/loop0 with flags 0x23: -16 [ 406.098384][T17368] FAULT_INJECTION: forcing a failure. [ 406.098384][T17368] name failslab, interval 1, probability 0, space 0, times 1 [ 406.098418][T17368] CPU: 0 UID: 0 PID: 17368 Comm: syz-executor892 Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT [ 406.098435][T17368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 406.098442][T17368] Call trace: [ 406.098446][T17368] show_stack+0x2c/0x3c (C) [ 406.098459][T17368] __dump_stack+0x30/0x40 [ 406.098466][T17368] dump_stack_lvl+0xd8/0x12c [ 406.098471][T17368] dump_stack+0x1c/0x28 [ 406.098476][T17368] should_fail_ex+0x41c/0x594 [ 406.098484][T17368] should_failslab+0xc0/0x128 [ 406.098491][T17368] kmem_cache_alloc_noprof+0x80/0x3e8 [ 406.098499][T17368] __es_insert_extent+0x52c/0x1234 [ 406.098506][T17368] __es_remove_extent+0xa4c/0x1358 [ 406.098512][T17368] ext4_es_remove_extent+0x1bc/0x460 [ 406.098518][T17368] ext4_punch_hole+0x6d8/0xc20 [ 406.098524][T17368] ext4_fallocate+0x338/0x384 [ 406.098530][T17368] vfs_fallocate+0x52c/0x668 [ 406.098536][T17368] file_ioctl+0x584/0x75c [ 406.098542][T17368] do_vfs_ioctl+0xa10/0x1834 [ 406.098547][T17368] __arm64_sys_ioctl+0xe4/0x1c4 [ 406.098553][T17368] invoke_syscall+0x98/0x2b8 [ 406.098558][T17368] el0_svc_common+0x130/0x23c [ 406.098563][T17368] do_el0_svc+0x48/0x58 [ 406.098568][T17368] el0_svc+0x58/0x180 [ 406.098575][T17368] el0t_64_sync_handler+0x84/0x12c [ 406.098581][T17368] el0t_64_sync+0x198/0x19c