[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.16' (ECDSA) to the list of known hosts. syzkaller login: [ 107.343592] audit: type=1400 audit(1594078628.534:8): avc: denied { execmem } for pid=6344 comm="syz-executor772" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 107.347470] FAULT_INJECTION: forcing a failure. [ 107.347470] name failslab, interval 1, probability 0, space 0, times 1 [ 107.375014] CPU: 1 PID: 6344 Comm: syz-executor772 Not tainted 4.14.184-syzkaller #0 [ 107.382970] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 107.392301] Call Trace: [ 107.394870] dump_stack+0x1b2/0x283 [ 107.398474] should_fail.cold+0x10a/0x154 [ 107.402600] should_failslab+0xd6/0x130 [ 107.406549] kmem_cache_alloc_node_trace+0x25a/0x400 [ 107.411629] __kmalloc_node+0x38/0x70 [ 107.415436] setup_kmem_cache_node+0x22a/0x3c0 [ 107.419997] __do_tune_cpucache+0x151/0x200 [ 107.424296] do_tune_cpucache+0x21/0xc0 [ 107.428274] enable_cpucache+0x3a/0xd0 [ 107.432137] __kmem_cache_create+0x19c/0x240 [ 107.436522] create_cache+0xab/0x1b0 [ 107.440211] kmem_cache_create+0x1b7/0x260 [ 107.444422] copy_pid_ns+0x6f2/0xa70 [ 107.448110] ? copy_ipcs+0x44/0x3f0 [ 107.451715] create_new_namespaces+0x25f/0x730 [ 107.456275] unshare_nsproxy_namespaces+0xa5/0x1e0 [ 107.461178] ? unshare_userns+0x21/0xf0 [ 107.465146] SyS_unshare+0x2ea/0x740 [ 107.468834] ? walk_process_tree+0x2a0/0x2a0 [ 107.473216] ? mntput+0x5c/0x80 [ 107.476469] ? SyS_chdir+0x10c/0x1a0 [ 107.480162] ? SyS_access+0x20/0x20 [ 107.483763] ? do_syscall_64+0x4c/0x640 [ 107.487731] ? walk_process_tree+0x2a0/0x2a0 [ 107.492115] do_syscall_64+0x1d5/0x640 [ 107.495980] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 107.501165] RIP: 0033:0x44a9e7 [ 107.504331] RSP: 002b:00007ffd9c5cc498 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 107.512011] RAX: ffffffffffffffda RBX: 00007ffd9c5cc580 RCX: 000000000044a9e7 [ 107.519256] RDX: 0000000000000005 RSI: 00000000000001ff RDI: 0000000020000000 [ 107.526514] RBP: 00000000006d7018 R08: 000000000000fdfe R09: 0000000000005000 [ 107.533760] R10: 0000000000000008 R11: 0000000000000246 R12: 00007ffd9c5cc4e0 [ 107.541007] R13: 00000000004056b0 R14: 0000000000000000 R15: 0000000000000000 [ 107.548551] enable_cpucache failed for pid_2, error 12 [ 107.554311] kmem_cache_create(pid_2) failed with error -12 [ 107.560545] CPU: 1 PID: 6344 Comm: syz-executor772 Not tainted 4.14.184-syzkaller #0 [ 107.568434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 107.577767] Call Trace: [ 107.580336] dump_stack+0x1b2/0x283 [ 107.583946] kmem_cache_create.cold+0x61/0x82 [ 107.588419] copy_pid_ns+0x6f2/0xa70 [ 107.592108] ? copy_ipcs+0x44/0x3f0 [ 107.595713] create_new_namespaces+0x25f/0x730 [ 107.600294] unshare_nsproxy_namespaces+0xa5/0x1e0 [ 107.605196] ? unshare_userns+0x21/0xf0 [ 107.609147] SyS_unshare+0x2ea/0x740 [ 107.612855] ? walk_process_tree+0x2a0/0x2a0 [ 107.617243] ? mntput+0x5c/0x80 [ 107.620498] ? SyS_chdir+0x10c/0x1a0 [ 107.624202] ? SyS_access+0x20/0x20 [ 107.627801] ? do_syscall_64+0x4c/0x640 [ 107.631749] ? walk_process_tree+0x2a0/0x2a0 [ 107.636131] do_syscall_64+0x1d5/0x640 [ 107.639995] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 107.645157] RIP: 0033:0x44a9e7 [ 107.648336] RSP: 002b:00007ffd9c5cc498 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 107.656019] RAX: ffffffffffffffda RBX: 00007ffd9c5cc580 RCX: 000000000044a9e7 [ 107.663282] RDX: 0000000000000005 RSI: 00000000000001ff RDI: 0000000020000000 [ 107.670526] RBP: 00000000006d7018 R08: 000000000000fdfe R09: 0000000000005000 [ 107.677771] R10: 0000000000000008 R11: 0000000000000246 R12: 00007ffd9c5cc4e0 [ 107.685017] R13: 00000000004056b0 R14: 0000000000000000 R15: 0000000000000000 [ 107.959872] IPVS: ftp: loaded support on port[0] = 21 [ 108.744654] chnl_net:caif_netlink_parms(): no params data found [ 108.828670] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.835316] bridge0: port 1(bridge_slave_0) entered disabled state [ 108.843037] device bridge_slave_0 entered promiscuous mode [ 108.851258] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.857652] bridge0: port 2(bridge_slave_1) entered disabled state [ 108.865581] device bridge_slave_1 entered promiscuous mode [ 108.882802] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 108.891607] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 108.910797] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 108.918031] team0: Port device team_slave_0 added [ 108.924211] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 108.931808] team0: Port device team_slave_1 added [ 108.947394] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 108.953866] 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. [ 108.979822] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 108.992153] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 108.998383] 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. [ 109.024430] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 109.035399] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 109.043327] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 109.110827] device hsr_slave_0 entered promiscuous mode [ 109.148700] device hsr_slave_1 entered promiscuous mode [ 109.189134] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 109.196201] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 109.261560] bridge0: port 2(bridge_slave_1) entered blocking state [ 109.268134] bridge0: port 2(bridge_slave_1) entered forwarding state [ 109.275131] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.281686] bridge0: port 1(bridge_slave_0) entered forwarding state [ 109.311504] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 109.317591] 8021q: adding VLAN 0 to HW filter on device bond0 [ 109.326927] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 109.335552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 109.355365] bridge0: port 1(bridge_slave_0) entered disabled state [ 109.362572] bridge0: port 2(bridge_slave_1) entered disabled state [ 109.372915] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 109.379623] 8021q: adding VLAN 0 to HW filter on device team0 [ 109.388457] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 109.396167] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.402583] bridge0: port 1(bridge_slave_0) entered forwarding state [ 109.412284] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 109.420297] bridge0: port 2(bridge_slave_1) entered blocking state [ 109.426621] bridge0: port 2(bridge_slave_1) entered forwarding state [ 109.441212] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 109.454912] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 109.465021] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 109.475470] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 109.482552] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 109.489917] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 109.497370] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 109.505689] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 109.513333] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 109.524413] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 109.535058] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 109.541796] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 109.549387] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 109.596040] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 109.605451] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 109.633602] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 109.641183] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 109.647625] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 109.657931] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 109.665664] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 109.672688] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 109.681703] device veth0_vlan entered promiscuous mode [ 109.691749] device veth1_vlan entered promiscuous mode [ 109.697646] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 109.706509] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 109.718815] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 109.728168] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 109.736060] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 109.743980] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 109.751764] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 109.761265] device veth0_macvtap entered promiscuous mode [ 109.770569] device veth1_macvtap entered promiscuous mode [ 109.779290] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 109.788200] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 109.797604] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 109.806196] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 109.813011] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 109.821027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 109.831715] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 109.838887] batman_adv: batadv0: Interface activated: batadv_slave_1 executing program [ 109.845449] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 109.853237] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 109.932717] FAULT_INJECTION: forcing a failure. [ 109.932717] name failslab, interval 1, probability 0, space 0, times 0 [ 109.945670] CPU: 0 PID: 6345 Comm: syz-executor772 Not tainted 4.14.184-syzkaller #0 [ 109.953571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 109.963702] Call Trace: [ 109.966276] dump_stack+0x1b2/0x283 [ 109.969885] should_fail.cold+0x10a/0x154 [ 109.974009] should_failslab+0xd6/0x130 [ 109.977957] __kmalloc+0x2c1/0x400 [ 109.981472] ? register_shrinker+0x1ab/0x220 [ 109.985857] register_shrinker+0x1ab/0x220 [ 109.990074] sget_userns+0x9c5/0xc30 [ 109.993764] ? set_gfs2_super+0x110/0x110 [ 109.997888] ? gfs2_open+0x170/0x170 [ 110.001582] ? set_gfs2_super+0x110/0x110 [ 110.005717] ? gfs2_open+0x170/0x170 [ 110.009411] sget+0xd1/0x110 [ 110.012408] gfs2_mount+0x10f/0x4f3 [ 110.016030] ? fill_super+0x22a0/0x22a0 [ 110.019982] ? debug_object_activate+0x450/0x450 [ 110.024714] ? free_hot_cold_page+0x879/0xc90 [ 110.029305] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 110.034388] ? selinux_sb_copy_data+0x206/0x380 [ 110.039046] mount_fs+0x92/0x2a0 [ 110.042393] vfs_kern_mount.part.0+0x5b/0x3c0 [ 110.046867] do_mount+0x3c9/0x25e0 [ 110.050549] ? copy_mount_string+0x40/0x40 [ 110.054764] ? memset+0x20/0x40 [ 110.058025] ? copy_mount_options+0x1ec/0x2e0 [ 110.062498] ? copy_mnt_ns+0x8a0/0x8a0 [ 110.066400] SyS_mount+0xa8/0x120 [ 110.069833] ? copy_mnt_ns+0x8a0/0x8a0 [ 110.073711] do_syscall_64+0x1d5/0x640 [ 110.077576] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 110.082746] RIP: 0033:0x44a96a [ 110.085911] RSP: 002b:00007ffd9c5cc2c8 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 [ 110.093728] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000044a96a [ 110.100975] RDX: 00007ffd9c5cc310 RSI: 00000000200000c0 RDI: 00007ffd9c5cc330 [ 110.108219] RBP: 00007ffd9c5cc4b0 R08: 00007ffd9c5cc370 R09: 00007ffd9c5cc4b0 [ 110.115493] R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffd9c5cc4e0 [ 110.122743] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 110.138794] ------------[ cut here ]------------ [ 110.143700] WARNING: CPU: 1 PID: 6345 at fs/super.c:1163 kill_block_super+0xbe/0xe0 [ 110.151474] Kernel panic - not syncing: panic_on_warn set ... [ 110.151474] [ 110.158816] CPU: 1 PID: 6345 Comm: syz-executor772 Not tainted 4.14.184-syzkaller #0 [ 110.166668] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 110.175997] Call Trace: [ 110.178563] dump_stack+0x1b2/0x283 [ 110.182168] panic+0x1f9/0x42d [ 110.185355] ? add_taint.cold+0x16/0x16 [ 110.189321] ? kill_block_super+0xbe/0xe0 [ 110.193494] ? kill_block_super+0xbe/0xe0 [ 110.197619] __warn.cold+0x2f/0x30 [ 110.201137] ? ist_end_non_atomic+0x10/0x10 [ 110.205435] ? kill_block_super+0xbe/0xe0 [ 110.209574] report_bug+0x20a/0x248 [ 110.213187] do_error_trap+0x195/0x2d0 [ 110.217055] ? math_error+0x2d0/0x2d0 [ 110.220838] ? retint_kernel+0x2d/0x2d [ 110.224705] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 110.229527] invalid_op+0x1b/0x40 [ 110.233078] RIP: 0010:kill_block_super+0xbe/0xe0 [ 110.237843] RSP: 0018:ffff888097ca7a98 EFLAGS: 00010297 [ 110.243183] RAX: ffff88809b82e140 RBX: 0000000000000000 RCX: 1ffff11013705d37 [ 110.250429] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8880a6d91ae8 [ 110.257674] RBP: ffff888095c38e80 R08: 0000000000000001 R09: 0000000000000001 [ 110.264918] R10: ffff88809b82ea18 R11: ffff88809b82e140 R12: ffff8880a6d91740 [ 110.272165] R13: ffff888095c38fc0 R14: dffffc0000000000 R15: ffffffff87b534c0 [ 110.279427] ? kill_block_super+0xbe/0xe0 [ 110.283550] gfs2_kill_sb+0x144/0x1a0 [ 110.287323] deactivate_locked_super+0x6c/0xd0 [ 110.291883] sget_userns+0x9df/0xc30 [ 110.295574] ? set_gfs2_super+0x110/0x110 [ 110.299701] ? gfs2_open+0x170/0x170 [ 110.303388] ? set_gfs2_super+0x110/0x110 [ 110.307508] ? gfs2_open+0x170/0x170 [ 110.311195] sget+0xd1/0x110 [ 110.314204] gfs2_mount+0x10f/0x4f3 [ 110.317805] ? fill_super+0x22a0/0x22a0 [ 110.321771] ? debug_object_activate+0x450/0x450 [ 110.326502] ? free_hot_cold_page+0x879/0xc90 [ 110.330973] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 110.335966] ? selinux_sb_copy_data+0x206/0x380 [ 110.340614] mount_fs+0x92/0x2a0 [ 110.343957] vfs_kern_mount.part.0+0x5b/0x3c0 [ 110.348428] do_mount+0x3c9/0x25e0 [ 110.351949] ? copy_mount_string+0x40/0x40 [ 110.356161] ? memset+0x20/0x40 [ 110.359415] ? copy_mount_options+0x1ec/0x2e0 [ 110.363885] ? copy_mnt_ns+0x8a0/0x8a0 [ 110.367744] SyS_mount+0xa8/0x120 [ 110.371173] ? copy_mnt_ns+0x8a0/0x8a0 [ 110.375042] do_syscall_64+0x1d5/0x640 [ 110.378906] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 110.384086] RIP: 0033:0x44a96a [ 110.387267] RSP: 002b:00007ffd9c5cc2c8 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 [ 110.394948] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000044a96a [ 110.402192] RDX: 00007ffd9c5cc310 RSI: 00000000200000c0 RDI: 00007ffd9c5cc330 [ 110.409452] RBP: 00007ffd9c5cc4b0 R08: 00007ffd9c5cc370 R09: 00007ffd9c5cc4b0 [ 110.416702] R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffd9c5cc4e0 [ 110.423946] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 110.432146] Kernel Offset: disabled [ 110.435819] Rebooting in 86400 seconds..