[ 284.403445][ T8456] cron (8456) used greatest stack depth: 22736 bytes left Warning: Permanently added '10.128.0.236' (ECDSA) to the list of known hosts. 2021/09/06 01:17:02 parsed 1 programs 2021/09/06 01:17:02 executed programs: 0 [ 286.397299][ T8480] chnl_net:caif_netlink_parms(): no params data found [ 286.447936][ T8480] bridge0: port 1(bridge_slave_0) entered blocking state [ 286.456116][ T8480] bridge0: port 1(bridge_slave_0) entered disabled state [ 286.463760][ T8480] device bridge_slave_0 entered promiscuous mode [ 286.471563][ T8480] bridge0: port 2(bridge_slave_1) entered blocking state [ 286.478794][ T8480] bridge0: port 2(bridge_slave_1) entered disabled state [ 286.487313][ T8480] device bridge_slave_1 entered promiscuous mode [ 286.508964][ T8480] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 286.519525][ T8480] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 286.544168][ T8480] team0: Port device team_slave_0 added [ 286.551324][ T8480] team0: Port device team_slave_1 added [ 286.571391][ T8480] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 286.578363][ T8480] 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 1560 would solve the problem. [ 286.604290][ T8480] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 286.615865][ T8480] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 286.622975][ T8480] 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 1560 would solve the problem. [ 286.649020][ T8480] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 286.676734][ T8480] device hsr_slave_0 entered promiscuous mode [ 286.683509][ T8480] device hsr_slave_1 entered promiscuous mode [ 286.758819][ T8480] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 286.768197][ T8480] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 286.778259][ T8480] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 286.787423][ T8480] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 286.805971][ T8480] bridge0: port 2(bridge_slave_1) entered blocking state [ 286.813029][ T8480] bridge0: port 2(bridge_slave_1) entered forwarding state [ 286.820299][ T8480] bridge0: port 1(bridge_slave_0) entered blocking state [ 286.827396][ T8480] bridge0: port 1(bridge_slave_0) entered forwarding state [ 286.857382][ T8480] 8021q: adding VLAN 0 to HW filter on device bond0 [ 286.868329][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 286.876769][ T3179] bridge0: port 1(bridge_slave_0) entered disabled state [ 286.885101][ T3179] bridge0: port 2(bridge_slave_1) entered disabled state [ 286.893507][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 286.904185][ T8480] 8021q: adding VLAN 0 to HW filter on device team0 [ 286.914034][ T4826] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 286.922876][ T4826] bridge0: port 1(bridge_slave_0) entered blocking state [ 286.930022][ T4826] bridge0: port 1(bridge_slave_0) entered forwarding state [ 286.940981][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 286.949235][ T3179] bridge0: port 2(bridge_slave_1) entered blocking state [ 286.956319][ T3179] bridge0: port 2(bridge_slave_1) entered forwarding state [ 286.971640][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 286.980828][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 286.989956][ T4826] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 287.001746][ T4826] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 287.014096][ T8480] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 287.025811][ T8480] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 287.033914][ T4826] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 287.051043][ T4826] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 287.058625][ T4826] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 287.068651][ T8480] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 287.085666][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 287.101370][ T4826] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 287.109798][ T4826] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 287.117961][ T4826] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 287.127755][ T8480] device veth0_vlan entered promiscuous mode [ 287.138077][ T8480] device veth1_vlan entered promiscuous mode [ 287.154211][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 287.162020][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 287.169847][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 287.182041][ T8480] device veth0_macvtap entered promiscuous mode [ 287.190435][ T8480] device veth1_macvtap entered promiscuous mode [ 287.205207][ T8480] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 287.212828][ T4826] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 287.222082][ T4826] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 287.233327][ T8480] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 287.240872][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 287.251884][ T8480] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 287.261328][ T8480] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 287.270050][ T8480] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 287.279114][ T8480] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 287.319940][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 287.342717][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 287.349449][ T28] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 287.350165][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 287.369718][ T28] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 287.378502][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 287.560692][ T8] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 290.308293][ T8] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 292.427860][ T8842] chnl_net:caif_netlink_parms(): no params data found [ 292.476270][ T8842] bridge0: port 1(bridge_slave_0) entered blocking state [ 292.483778][ T8842] bridge0: port 1(bridge_slave_0) entered disabled state [ 292.491909][ T8842] device bridge_slave_0 entered promiscuous mode [ 292.499966][ T8842] bridge0: port 2(bridge_slave_1) entered blocking state [ 292.507484][ T8842] bridge0: port 2(bridge_slave_1) entered disabled state [ 292.515388][ T8842] device bridge_slave_1 entered promiscuous mode [ 292.537702][ T8842] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 292.549051][ T8842] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 292.574210][ T8842] team0: Port device team_slave_0 added [ 292.582217][ T8842] team0: Port device team_slave_1 added [ 292.601631][ T8842] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 292.608600][ T8842] 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 1560 would solve the problem. [ 292.635119][ T8842] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 292.647028][ T8842] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 292.654669][ T8842] 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 1560 would solve the problem. [ 292.680813][ T8842] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 292.712003][ T8842] device hsr_slave_0 entered promiscuous mode [ 292.718612][ T8842] device hsr_slave_1 entered promiscuous mode [ 292.725155][ T8842] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 292.733013][ T8842] Cannot create hsr debugfs directory [ 292.795989][ T8842] bridge0: port 2(bridge_slave_1) entered blocking state [ 292.803352][ T8842] bridge0: port 2(bridge_slave_1) entered forwarding state [ 292.810666][ T8842] bridge0: port 1(bridge_slave_0) entered blocking state [ 292.817876][ T8842] bridge0: port 1(bridge_slave_0) entered forwarding state [ 292.848297][ T8] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 292.887631][ T8842] 8021q: adding VLAN 0 to HW filter on device bond0 [ 292.899231][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 292.908649][ T3179] bridge0: port 1(bridge_slave_0) entered disabled state [ 292.916815][ T3179] bridge0: port 2(bridge_slave_1) entered disabled state [ 292.925428][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 292.937434][ T8842] 8021q: adding VLAN 0 to HW filter on device team0 [ 292.968174][ T8] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 292.982116][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 292.990916][ T3179] bridge0: port 1(bridge_slave_0) entered blocking state [ 292.997972][ T3179] bridge0: port 1(bridge_slave_0) entered forwarding state [ 293.021247][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 293.029725][ T3179] bridge0: port 2(bridge_slave_1) entered blocking state [ 293.036951][ T3179] bridge0: port 2(bridge_slave_1) entered forwarding state [ 293.045387][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 293.053992][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 293.062583][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 293.077329][ T8842] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 293.088765][ T8842] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 293.096764][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 293.104931][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 293.161658][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 293.169073][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 293.258283][ T8842] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 293.573901][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 293.583201][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 293.622272][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 293.631628][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 293.641917][ T8842] device veth0_vlan entered promiscuous mode [ 293.653467][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 293.661293][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 293.672242][ T8842] device veth1_vlan entered promiscuous mode [ 293.691310][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 293.699146][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 293.708496][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 293.716823][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 293.754287][ T8842] device veth0_macvtap entered promiscuous mode [ 293.763805][ T8842] device veth1_macvtap entered promiscuous mode [ 293.778105][ T8842] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 293.789042][ T8842] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 293.800519][ T8842] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 293.807811][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 293.816591][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 293.824592][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 293.833348][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 293.866340][ T8842] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 293.877140][ T8842] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 293.888387][ T8842] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 293.897185][ T4826] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 293.906182][ T4826] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 293.978641][ T58] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 294.001109][ T58] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 294.040398][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 294.053661][ T58] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 294.062640][ T58] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 294.071263][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 294.375625][ T8] device hsr_slave_0 left promiscuous mode [ 294.383742][ T8] device hsr_slave_1 left promiscuous mode [ 294.389901][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 294.398441][ T8] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 294.406347][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 294.414089][ T8] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 294.422709][ T8] device bridge_slave_1 left promiscuous mode [ 294.428968][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 294.437442][ T8] device bridge_slave_0 left promiscuous mode [ 294.444038][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 294.453438][ T8] device veth1_macvtap left promiscuous mode [ 294.459451][ T8] device veth0_macvtap left promiscuous mode [ 294.465896][ T8] device veth1_vlan left promiscuous mode [ 294.471901][ T8] device veth0_vlan left promiscuous mode [ 295.375574][ T8] team0 (unregistering): Port device team_slave_1 removed [ 295.385480][ T8] team0 (unregistering): Port device team_slave_0 removed [ 295.396019][ T8] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 295.408154][ T8] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 295.439166][ T8] bond0 (unregistering): Released all slaves [ 296.584996][ T9240] chnl_net:caif_netlink_parms(): no params data found [ 296.651952][ T9240] bridge0: port 1(bridge_slave_0) entered blocking state [ 296.659221][ T9240] bridge0: port 1(bridge_slave_0) entered disabled state [ 296.669227][ T9240] device bridge_slave_0 entered promiscuous mode [ 296.678270][ T9240] bridge0: port 2(bridge_slave_1) entered blocking state [ 296.685919][ T9240] bridge0: port 2(bridge_slave_1) entered disabled state [ 296.694430][ T9240] device bridge_slave_1 entered promiscuous mode [ 296.734675][ T9240] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 296.746340][ T9240] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 296.796314][ T9240] team0: Port device team_slave_0 added [ 296.804123][ T9240] team0: Port device team_slave_1 added [ 296.859213][ T9240] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 296.867353][ T9240] 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 1560 would solve the problem. [ 296.894606][ T9240] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 296.913113][ T8] device hsr_slave_0 left promiscuous mode [ 296.919332][ T8] device hsr_slave_1 left promiscuous mode [ 296.926222][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 296.934849][ T8] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 296.942970][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 296.951095][ T8] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 296.958687][ T8] device bridge_slave_1 left promiscuous mode [ 296.965412][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 296.973483][ T8] device bridge_slave_0 left promiscuous mode [ 296.979616][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 296.988675][ T8] device veth1_macvtap left promiscuous mode [ 296.995139][ T8] device veth0_macvtap left promiscuous mode [ 297.001315][ T8] device veth1_vlan left promiscuous mode [ 297.007102][ T8] device veth0_vlan left promiscuous mode [ 297.862252][ T22] ================================================================== [ 297.870341][ T22] BUG: KASAN: use-after-free in __d_alloc+0x19a/0x950 [ 297.877181][ T22] Read of size 5 at addr ffff888013da9120 by task kdevtmpfs/22 [ 297.884701][ T22] [ 297.887028][ T22] CPU: 1 PID: 22 Comm: kdevtmpfs Not tainted 5.14.0-syzkaller #0 [ 297.894810][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 297.904865][ T22] Call Trace: [ 297.908125][ T22] dump_stack_lvl+0xcd/0x134 [ 297.912758][ T22] print_address_description.constprop.0.cold+0x6c/0x309 [ 297.919885][ T22] ? __d_alloc+0x19a/0x950 [ 297.924469][ T22] ? __d_alloc+0x19a/0x950 [ 297.928864][ T22] kasan_report.cold+0x83/0xdf [ 297.933610][ T22] ? __d_alloc+0x19a/0x950 [ 297.938014][ T22] kasan_check_range+0x13d/0x180 [ 297.942975][ T22] memcpy+0x20/0x60 [ 297.946807][ T22] __d_alloc+0x19a/0x950 [ 297.951121][ T22] d_alloc+0x4a/0x230 [ 297.955082][ T22] __lookup_hash+0xc8/0x180 [ 297.959570][ T22] kern_path_locked+0x17e/0x320 [ 297.964404][ T22] ? filename_lookup+0x80/0x80 [ 297.969158][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 297.974639][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 297.980077][ T22] handle_remove+0xa2/0x5fe [ 297.984624][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 297.989482][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 297.995097][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 298.001026][ T22] ? trace_hardirqs_on+0x5b/0x1c0 [ 298.006197][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 298.011995][ T22] ? __switch_to+0x5cc/0x1060 [ 298.016724][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 298.022183][ T22] ? lock_acquire+0x442/0x510 [ 298.026845][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 298.032335][ T22] ? lock_release+0x522/0x720 [ 298.037169][ T22] ? devtmpfsd+0xaa/0x2a3 [ 298.041563][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 298.046392][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 298.051482][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 298.056423][ T22] devtmpfsd+0x1b9/0x2a3 [ 298.060649][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 298.066186][ T22] kthread+0x3e5/0x4d0 [ 298.070315][ T22] ? set_kthread_struct+0x130/0x130 [ 298.075493][ T22] ret_from_fork+0x1f/0x30 [ 298.079913][ T22] [ 298.082226][ T22] Allocated by task 22: [ 298.086352][ T22] kasan_save_stack+0x1b/0x40 [ 298.091013][ T22] __kasan_slab_alloc+0x83/0xb0 [ 298.095864][ T22] kmem_cache_alloc+0x285/0x4a0 [ 298.100706][ T22] getname_kernel+0x4e/0x370 [ 298.105276][ T22] kern_path_locked+0x71/0x320 [ 298.110019][ T22] handle_remove+0xa2/0x5fe [ 298.114505][ T22] devtmpfsd+0x1b9/0x2a3 [ 298.118726][ T22] kthread+0x3e5/0x4d0 [ 298.122774][ T22] ret_from_fork+0x1f/0x30 [ 298.127169][ T22] [ 298.129468][ T22] Freed by task 22: [ 298.133262][ T22] kasan_save_stack+0x1b/0x40 [ 298.137920][ T22] kasan_set_track+0x1c/0x30 [ 298.142497][ T22] kasan_set_free_info+0x20/0x30 [ 298.147410][ T22] __kasan_slab_free+0xff/0x130 [ 298.152242][ T22] slab_free_freelist_hook+0xe3/0x250 [ 298.157597][ T22] kmem_cache_free+0x8a/0x5b0 [ 298.162262][ T22] putname.part.0+0xe1/0x120 [ 298.166954][ T22] kern_path_locked+0xc2/0x320 [ 298.171695][ T22] handle_remove+0xa2/0x5fe [ 298.176179][ T22] devtmpfsd+0x1b9/0x2a3 [ 298.180486][ T22] kthread+0x3e5/0x4d0 [ 298.184629][ T22] ret_from_fork+0x1f/0x30 [ 298.189094][ T22] [ 298.191403][ T22] The buggy address belongs to the object at ffff888013da9100 [ 298.191403][ T22] which belongs to the cache names_cache of size 4096 [ 298.205703][ T22] The buggy address is located 32 bytes inside of [ 298.205703][ T22] 4096-byte region [ffff888013da9100, ffff888013daa100) [ 298.218962][ T22] The buggy address belongs to the page: [ 298.224569][ T22] page:ffffea00004f6a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x13da8 [ 298.234696][ T22] head:ffffea00004f6a00 order:3 compound_mapcount:0 compound_pincount:0 [ 298.243005][ T22] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) [ 298.250966][ T22] raw: 00fff00000010200 dead000000000100 dead000000000122 ffff888010dc63c0 [ 298.259538][ T22] raw: 0000000000000000 0000000080070007 00000001ffffffff 0000000000000000 [ 298.268100][ T22] page dumped because: kasan: bad access detected [ 298.274495][ T22] page_owner tracks the page as allocated [ 298.280190][ T22] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4992, ts 26270686654, free_ts 26249723952 [ 298.299269][ T22] get_page_from_freelist+0xa72/0x2f80 [ 298.304818][ T22] __alloc_pages+0x1b2/0x500 [ 298.309393][ T22] alloc_pages+0x1a7/0x300 [ 298.313876][ T22] allocate_slab+0x32e/0x4b0 [ 298.318486][ T22] ___slab_alloc+0x473/0x7b0 [ 298.323096][ T22] __slab_alloc.constprop.0+0xa7/0xf0 [ 298.328446][ T22] kmem_cache_alloc+0x3e1/0x4a0 [ 298.333275][ T22] getname_flags.part.0+0x50/0x4f0 [ 298.338387][ T22] getname+0x8e/0xd0 [ 298.342261][ T22] do_sys_openat2+0xf5/0x4d0 [ 298.346875][ T22] __x64_sys_open+0x119/0x1c0 [ 298.351534][ T22] do_syscall_64+0x35/0xb0 [ 298.355979][ T22] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 298.361880][ T22] page last free stack trace: [ 298.366527][ T22] free_pcp_prepare+0x2c5/0x780 [ 298.371354][ T22] free_unref_page+0x19/0x690 [ 298.376009][ T22] unfreeze_partials+0x16c/0x1b0 [ 298.380928][ T22] put_cpu_partial+0x13d/0x230 [ 298.385668][ T22] qlist_free_all+0x5a/0xc0 [ 298.390146][ T22] kasan_quarantine_reduce+0x180/0x200 [ 298.395594][ T22] __kasan_slab_alloc+0x95/0xb0 [ 298.400439][ T22] kmem_cache_alloc_trace+0x26d/0x3c0 [ 298.405794][ T22] tomoyo_init_log+0x18a/0x1ec0 [ 298.410720][ T22] tomoyo_supervisor+0x34d/0xf00 [ 298.415644][ T22] tomoyo_path_number_perm+0x419/0x590 [ 298.421092][ T22] tomoyo_path_mknod+0x10d/0x190 [ 298.426025][ T22] security_path_mknod+0xf9/0x170 [ 298.431086][ T22] lookup_open.isra.0+0x475/0x13d0 [ 298.436271][ T22] path_openat+0x9a5/0x2740 [ 298.440753][ T22] do_filp_open+0x1aa/0x400 [ 298.445236][ T22] [ 298.447537][ T22] Memory state around the buggy address: [ 298.453404][ T22] ffff888013da9000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 298.461806][ T22] ffff888013da9080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 298.469848][ T22] >ffff888013da9100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 298.477882][ T22] ^ [ 298.482985][ T22] ffff888013da9180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 298.491020][ T22] ffff888013da9200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 298.499063][ T22] ================================================================== [ 298.510805][ T3179] Bluetooth: hci0: command 0x0409 tx timeout [ 298.511861][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 298.523553][ T22] CPU: 1 PID: 22 Comm: kdevtmpfs Tainted: G B 5.14.0-syzkaller #0 [ 298.532918][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 298.542965][ T22] Call Trace: [ 298.546243][ T22] dump_stack_lvl+0xcd/0x134 [ 298.550847][ T22] panic+0x2b0/0x6dd [ 298.554775][ T22] ? __warn_printk+0xf3/0xf3 [ 298.559360][ T22] ? preempt_schedule_common+0x59/0xc0 [ 298.564823][ T22] ? __d_alloc+0x19a/0x950 [ 298.569232][ T22] ? preempt_schedule_thunk+0x16/0x18 [ 298.574598][ T22] ? trace_hardirqs_on+0x38/0x1c0 [ 298.579622][ T22] ? trace_hardirqs_on+0x51/0x1c0 [ 298.584674][ T22] ? __d_alloc+0x19a/0x950 [ 298.589097][ T22] ? __d_alloc+0x19a/0x950 [ 298.593611][ T22] end_report.cold+0x63/0x6f [ 298.598204][ T22] kasan_report.cold+0x71/0xdf [ 298.602964][ T22] ? __d_alloc+0x19a/0x950 [ 298.607373][ T22] kasan_check_range+0x13d/0x180 [ 298.612302][ T22] memcpy+0x20/0x60 [ 298.616097][ T22] __d_alloc+0x19a/0x950 [ 298.620507][ T22] d_alloc+0x4a/0x230 [ 298.624480][ T22] __lookup_hash+0xc8/0x180 [ 298.628974][ T22] kern_path_locked+0x17e/0x320 [ 298.633817][ T22] ? filename_lookup+0x80/0x80 [ 298.638584][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 298.644040][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 298.649513][ T22] handle_remove+0xa2/0x5fe [ 298.654466][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 298.659311][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 298.664950][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 298.670753][ T22] ? trace_hardirqs_on+0x5b/0x1c0 [ 298.675775][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 298.681572][ T22] ? __switch_to+0x5cc/0x1060 [ 298.686240][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 298.691688][ T22] ? lock_acquire+0x442/0x510 [ 298.696358][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 298.701826][ T22] ? lock_release+0x522/0x720 [ 298.706492][ T22] ? devtmpfsd+0xaa/0x2a3 [ 298.710814][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 298.715661][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 298.720859][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 298.725791][ T22] devtmpfsd+0x1b9/0x2a3 [ 298.730043][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 298.735581][ T22] kthread+0x3e5/0x4d0 [ 298.739653][ T22] ? set_kthread_struct+0x130/0x130 [ 298.744848][ T22] ret_from_fork+0x1f/0x30 [ 298.750631][ T22] Kernel Offset: disabled [ 298.755120][ T22] Rebooting in 86400 seconds..