[ 27.641443] audit: type=1800 audit(1541010010.565:27): pid=5572 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 27.682731] audit: type=1800 audit(1541010010.565:28): pid=5572 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 28.499193] audit: type=1800 audit(1541010011.495:29): pid=5572 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 28.521281] audit: type=1800 audit(1541010011.495:30): pid=5572 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 44.482981] sshd (5713) used greatest stack depth: 15744 bytes left Warning: Permanently added '10.128.10.33' (ECDSA) to the list of known hosts. 2018/10/31 18:21:01 parsed 1 programs 2018/10/31 18:21:03 executed programs: 0 [ 80.925359] IPVS: ftp: loaded support on port[0] = 21 [ 80.940485] IPVS: ftp: loaded support on port[0] = 21 [ 80.982567] IPVS: ftp: loaded support on port[0] = 21 [ 81.033706] IPVS: ftp: loaded support on port[0] = 21 [ 81.061711] IPVS: ftp: loaded support on port[0] = 21 [ 81.065220] IPVS: ftp: loaded support on port[0] = 21 [ 82.178836] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.192196] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.203264] device bridge_slave_0 entered promiscuous mode [ 82.224843] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.231370] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.240893] device bridge_slave_0 entered promiscuous mode [ 82.277955] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.305989] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.313375] device bridge_slave_1 entered promiscuous mode [ 82.343220] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.349976] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.364674] device bridge_slave_1 entered promiscuous mode [ 82.373280] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.381751] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.389618] device bridge_slave_0 entered promiscuous mode [ 82.398730] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.406446] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.414668] device bridge_slave_0 entered promiscuous mode [ 82.425658] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.432038] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.443110] device bridge_slave_0 entered promiscuous mode [ 82.451742] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 82.460567] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 82.471075] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.480853] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.494747] device bridge_slave_1 entered promiscuous mode [ 82.502983] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.512488] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.521128] device bridge_slave_1 entered promiscuous mode [ 82.528992] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.537733] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.545818] device bridge_slave_0 entered promiscuous mode [ 82.555270] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 82.567130] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 82.578247] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.589034] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.597212] device bridge_slave_1 entered promiscuous mode [ 82.613293] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 82.635658] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 82.650427] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 82.659535] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.666982] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.675470] device bridge_slave_1 entered promiscuous mode [ 82.693440] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 82.724747] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 82.733895] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 82.760736] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 82.786968] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 82.854474] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 82.882134] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 82.895827] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 82.932181] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 82.977002] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 82.989094] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.008926] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 83.021050] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 83.037782] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 83.047954] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 83.074533] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 83.082779] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 83.095795] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.127978] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 83.141057] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 83.158608] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.179684] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 83.300060] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 83.355280] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 83.368823] team0: Port device team_slave_0 added [ 83.427823] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 83.438510] team0: Port device team_slave_1 added [ 83.451144] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 83.458950] team0: Port device team_slave_0 added [ 83.481599] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 83.491473] team0: Port device team_slave_0 added [ 83.512717] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 83.520329] team0: Port device team_slave_0 added [ 83.527746] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 83.541983] team0: Port device team_slave_1 added [ 83.555920] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.575975] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 83.583390] team0: Port device team_slave_0 added [ 83.602180] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 83.615250] team0: Port device team_slave_1 added [ 83.623227] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 83.634174] team0: Port device team_slave_1 added [ 83.648956] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.664651] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.681077] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 83.691169] team0: Port device team_slave_1 added [ 83.712042] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 83.722411] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.733962] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.744605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 83.780440] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.794905] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.802738] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.816295] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.826805] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 83.834513] team0: Port device team_slave_0 added [ 83.842841] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 83.850502] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 83.863714] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.884821] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.892590] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.900657] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 83.911482] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 83.919559] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 83.932768] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 83.944006] team0: Port device team_slave_1 added [ 83.951387] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 83.962496] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 83.972382] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.987196] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 84.001070] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 84.009590] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.017300] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.025219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 84.032884] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.040943] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 84.052382] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 84.065253] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 84.072151] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.085053] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 84.100834] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 84.112217] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 84.121285] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 84.130372] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 84.145763] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 84.154998] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 84.162333] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.175214] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 84.184446] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.192270] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 84.207089] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 84.218449] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.226045] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.233969] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 84.244892] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 84.258155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.267586] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 84.288068] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 84.312031] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.324924] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 84.391486] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 84.399791] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.413467] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 84.881756] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.888345] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.895643] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.902026] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.917275] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 85.003803] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.010225] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.017004] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.023395] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.053585] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 85.067522] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.073966] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.080663] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.087113] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.095836] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 85.109054] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.115518] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.122199] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.128644] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.148452] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 85.204986] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.211398] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.218144] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.224559] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.240574] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 85.328752] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.335239] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.341854] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.348305] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.357319] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 85.863746] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 85.874410] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 85.895085] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 85.918273] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 85.926068] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 85.933075] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 87.877970] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.017019] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.111364] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.155826] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.172931] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 88.218212] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.236955] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.258051] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 88.406195] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 88.412440] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 88.422361] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 88.441396] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 88.460243] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 88.539178] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 88.553739] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 88.560884] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 88.573990] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 88.600562] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 88.712867] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 88.722221] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 88.731245] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 88.744565] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 88.759734] 8021q: adding VLAN 0 to HW filter on device team0 [ 88.767290] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 88.777841] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 88.822515] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 88.842687] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 88.854856] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 88.880807] 8021q: adding VLAN 0 to HW filter on device team0 [ 88.958707] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 88.968671] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 88.978064] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 89.004758] 8021q: adding VLAN 0 to HW filter on device team0 [ 89.022804] 8021q: adding VLAN 0 to HW filter on device team0 [ 89.107224] 8021q: adding VLAN 0 to HW filter on device team0 [ 89.277748] 8021q: adding VLAN 0 to HW filter on device team0 [ 90.461789] FAULT_INJECTION: forcing a failure. [ 90.461789] name failslab, interval 1, probability 0, space 0, times 1 [ 90.475677] CPU: 0 PID: 7244 Comm: syz-executor3 Not tainted 4.19.0+ #73 [ 90.482508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.491856] Call Trace: [ 90.494452] dump_stack+0x244/0x39d [ 90.498079] ? dump_stack_print_info.cold.1+0x20/0x20 [ 90.503275] ? bpf_prog_kallsyms_find+0xde/0x4a0 [ 90.508038] should_fail.cold.4+0xa/0x17 [ 90.512100] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 90.517202] ? zap_class+0x640/0x640 [ 90.520921] ? print_usage_bug+0xc0/0xc0 [ 90.524985] ? zap_class+0x640/0x640 [ 90.528704] ? __lock_acquire+0x62f/0x4c20 [ 90.532937] ? __lock_acquire+0x62f/0x4c20 [ 90.537169] ? zap_class+0x640/0x640 [ 90.540884] ? __lock_is_held+0xb5/0x140 [ 90.544960] ? mark_held_locks+0x130/0x130 [ 90.549193] ? mark_held_locks+0x130/0x130 [ 90.553433] ? zap_class+0x640/0x640 [ 90.557145] ? __lock_is_held+0xb5/0x140 [ 90.561203] ? __account_cfs_rq_runtime+0x790/0x790 [ 90.566224] ? mark_held_locks+0x130/0x130 [ 90.570467] __should_failslab+0x124/0x180 [ 90.574704] should_failslab+0x9/0x14 [ 90.578523] kmem_cache_alloc+0x47/0x730 [ 90.582582] ? lock_downgrade+0x900/0x900 [ 90.586734] ? __perf_event_task_sched_out+0x33a/0x1bf0 [ 90.592103] __debug_object_init+0xbb8/0x1290 [ 90.596601] ? do_raw_spin_unlock+0xa7/0x330 [ 90.601019] ? do_raw_spin_trylock+0x270/0x270 [ 90.605619] ? debug_object_free+0x690/0x690 [ 90.610046] ? zap_class+0x640/0x640 [ 90.613764] ? find_held_lock+0x36/0x1c0 [ 90.617834] ? debug_object_activate+0x2ba/0x600 [ 90.622588] ? lock_downgrade+0x900/0x900 [ 90.626786] ? trace_hardirqs_off+0xb8/0x310 [ 90.631226] ? kasan_check_read+0x11/0x20 [ 90.635381] ? do_raw_spin_unlock+0xa7/0x330 [ 90.639794] ? trace_hardirqs_on+0x310/0x310 [ 90.644207] ? debug_smp_processor_id+0x1c/0x20 [ 90.648873] ? get_nohz_timer_target+0x8f/0x780 [ 90.653560] debug_object_activate+0x323/0x600 [ 90.658145] ? lock_timer_base+0x21d/0x2b0 [ 90.662381] ? free_obj_work+0xb80/0xb80 [ 90.666448] ? finish_task_switch+0x1b4/0x910 [ 90.670943] ? __switch_to_asm+0x34/0x70 [ 90.675012] add_timer+0x50e/0x15a0 [ 90.678649] ? __switch_to_asm+0x34/0x70 [ 90.682710] ? __switch_to_asm+0x40/0x70 [ 90.686776] ? __switch_to_asm+0x40/0x70 [ 90.690837] ? mod_timer+0x1560/0x1560 [ 90.694722] ? __schedule+0x8d7/0x21d0 [ 90.698613] ? __sched_text_start+0x8/0x8 [ 90.702771] ? perf_trace_sched_process_exec+0x860/0x860 [ 90.708225] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 90.712986] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 90.717573] ? retint_kernel+0x2d/0x2d [ 90.721463] ? trace_hardirqs_on_caller+0xc0/0x310 [ 90.726395] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 90.731176] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 90.736637] ? retint_kernel+0x1b/0x2d [ 90.740529] ? trace_hardirqs_on+0x310/0x310 [ 90.744950] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 90.749708] __queue_delayed_work+0x249/0x380 [ 90.754208] ? trace_hardirqs_off+0xb8/0x310 [ 90.758622] ? rcu_work_rcufn+0xf0/0xf0 [ 90.762608] ? queue_delayed_work_on+0x97/0x1f0 [ 90.767288] queue_delayed_work_on+0x1a2/0x1f0 [ 90.771877] _free_event+0xf27/0x1660 [ 90.775688] ? ring_buffer_attach+0x840/0x840 [ 90.780193] ? _raw_spin_unlock_irq+0x27/0x80 [ 90.784691] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 90.789277] ? trace_hardirqs_on+0xbd/0x310 [ 90.793597] ? kasan_check_read+0x11/0x20 [ 90.797753] ? perf_event_release_kernel+0x2e2/0x10e0 [ 90.802943] ? trace_hardirqs_off_caller+0x310/0x310 [ 90.808052] put_event+0x48/0x60 [ 90.811420] perf_event_release_kernel+0x8d0/0x10e0 [ 90.816437] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.821983] ? put_event+0x60/0x60 [ 90.825534] ? mark_held_locks+0x130/0x130 [ 90.829770] ? perf_trace_sched_process_exec+0x860/0x860 [ 90.835223] ? find_held_lock+0x36/0x1c0 [ 90.839293] ? get_pid_task+0xd6/0x1a0 [ 90.843183] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 90.848720] ? locks_remove_posix+0x47d/0x840 [ 90.853217] ? vfs_lock_file+0xe0/0xe0 [ 90.857108] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.862656] ? fsnotify+0x4e5/0xf20 [ 90.866284] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 90.871824] ? locks_remove_file+0x3c6/0x5c0 [ 90.876232] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 90.881766] ? ima_file_free+0x132/0x650 [ 90.885827] ? fsnotify_first_mark+0x350/0x350 [ 90.890404] ? ima_file_check+0x130/0x130 [ 90.894552] ? fsnotify+0xf20/0xf20 [ 90.898200] ? perf_event_release_kernel+0x10e0/0x10e0 [ 90.903473] perf_release+0x37/0x50 [ 90.907105] __fput+0x385/0xa30 [ 90.910391] ? get_max_files+0x20/0x20 [ 90.914277] ? trace_hardirqs_on+0xbd/0x310 [ 90.918599] ? kasan_check_read+0x11/0x20 [ 90.922755] ? task_work_run+0x1af/0x2a0 [ 90.926820] ? trace_hardirqs_off_caller+0x310/0x310 [ 90.931931] ? filp_close+0x1cd/0x250 [ 90.935733] ____fput+0x15/0x20 [ 90.939027] task_work_run+0x1e8/0x2a0 [ 90.942919] ? task_work_cancel+0x240/0x240 [ 90.947243] ? copy_fd_bitmaps+0x210/0x210 [ 90.951474] ? do_syscall_64+0x9a/0x820 [ 90.955450] exit_to_usermode_loop+0x318/0x380 [ 90.960037] ? __bpf_trace_sys_exit+0x30/0x30 [ 90.964543] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.970082] do_syscall_64+0x6be/0x820 [ 90.973970] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 90.979338] ? syscall_return_slowpath+0x5e0/0x5e0 [ 90.984270] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 90.989114] ? trace_hardirqs_on_caller+0x310/0x310 [ 90.994128] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 90.999145] ? prepare_exit_to_usermode+0x291/0x3b0 [ 91.004168] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 91.009020] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.014210] RIP: 0033:0x457569 [ 91.017403] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 91.036308] RSP: 002b:00007f208e04bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 91.044024] RAX: 0000000000000000 RBX: 00007f208e04bc90 RCX: 0000000000457569 [ 91.051304] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 91.058569] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 91.065832] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f208e04c6d4 [ 91.073101] R13: 00000000004efe32 R14: 00000000004cc6e0 R15: 0000000000000007 [ 91.080392] [ 91.080397] ====================================================== [ 91.080402] WARNING: possible circular locking dependency detected [ 91.080405] 4.19.0+ #73 Not tainted [ 91.080410] ------------------------------------------------------ [ 91.080414] syz-executor3/7244 is trying to acquire lock: [ 91.080417] 00000000e4a4dfcd ((console_sem).lock){-.-.}, at: down_trylock+0x13/0x70 [ 91.080428] [ 91.080432] but task is already holding lock: [ 91.080435] 000000002036bf76 (&base->lock){..-.}, at: lock_timer_base+0xbb/0x2b0 [ 91.080446] [ 91.080450] which lock already depends on the new lock. [ 91.080452] [ 91.080454] [ 91.080458] the existing dependency chain (in reverse order) is: [ 91.080460] [ 91.080462] -> #3 (&base->lock){..-.}: [ 91.080474] _raw_spin_lock_irqsave+0x99/0xd0 [ 91.080478] lock_timer_base+0xbb/0x2b0 [ 91.080481] add_timer+0x87f/0x15a0 [ 91.080484] __queue_delayed_work+0x249/0x380 [ 91.080488] queue_delayed_work_on+0x1a2/0x1f0 [ 91.080491] psi_task_change+0x3f1/0x5f0 [ 91.080495] activate_task+0x1b4/0x470 [ 91.080498] wake_up_new_task+0x523/0xcf0 [ 91.080501] _do_fork+0x33b/0x11d0 [ 91.080505] kernel_thread+0x34/0x40 [ 91.080508] rest_init+0x28/0x372 [ 91.080511] arch_call_rest_init+0xe/0x1b [ 91.080515] start_kernel+0xa1f/0xa5a [ 91.080519] x86_64_start_reservations+0x2e/0x30 [ 91.080523] x86_64_start_kernel+0x76/0x79 [ 91.080527] secondary_startup_64+0xa4/0xb0 [ 91.080529] [ 91.080531] -> #2 (&rq->lock){-.-.}: [ 91.080542] _raw_spin_lock+0x2d/0x40 [ 91.080545] task_fork_fair+0xb0/0x6d0 [ 91.080548] sched_fork+0x443/0xba0 [ 91.080552] copy_process+0x25b8/0x87a0 [ 91.080556] _do_fork+0x1cb/0x11d0 [ 91.080560] kernel_thread+0x34/0x40 [ 91.080563] rest_init+0x28/0x372 [ 91.080567] arch_call_rest_init+0xe/0x1b [ 91.080571] start_kernel+0xa1f/0xa5a [ 91.080575] x86_64_start_reservations+0x2e/0x30 [ 91.080579] x86_64_start_kernel+0x76/0x79 [ 91.080583] secondary_startup_64+0xa4/0xb0 [ 91.080585] [ 91.080587] -> #1 (&p->pi_lock){-.-.}: [ 91.080600] _raw_spin_lock_irqsave+0x99/0xd0 [ 91.080604] try_to_wake_up+0xdc/0x1490 [ 91.080607] wake_up_process+0x10/0x20 [ 91.080611] __up.isra.1+0x1c0/0x2a0 [ 91.080615] up+0x13c/0x1c0 [ 91.080619] __up_console_sem+0xbe/0x1b0 [ 91.080635] console_unlock+0x811/0x1190 [ 91.080639] vprintk_emit+0x391/0x990 [ 91.080643] vprintk_default+0x28/0x30 [ 91.080647] vprintk_func+0x7e/0x181 [ 91.080651] printk+0xa7/0xcf [ 91.080655] do_exit.cold.18+0x57/0x16f [ 91.080658] do_group_exit+0x177/0x440 [ 91.080662] __x64_sys_exit_group+0x3e/0x50 [ 91.080665] do_syscall_64+0x1b9/0x820 [ 91.080669] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.080671] [ 91.080674] -> #0 ((console_sem).lock){-.-.}: [ 91.080686] lock_acquire+0x1ed/0x520 [ 91.080689] _raw_spin_lock_irqsave+0x99/0xd0 [ 91.080693] down_trylock+0x13/0x70 [ 91.080696] __down_trylock_console_sem+0xae/0x1f0 [ 91.080699] console_trylock+0x15/0xa0 [ 91.080703] vprintk_emit+0x372/0x990 [ 91.080706] vprintk_default+0x28/0x30 [ 91.080709] vprintk_func+0x7e/0x181 [ 91.080712] printk+0xa7/0xcf [ 91.080715] should_fail+0xac1/0xd01 [ 91.080718] __should_failslab+0x124/0x180 [ 91.080721] should_failslab+0x9/0x14 [ 91.080725] kmem_cache_alloc+0x47/0x730 [ 91.080728] __debug_object_init+0xbb8/0x1290 [ 91.080732] debug_object_activate+0x323/0x600 [ 91.080735] add_timer+0x50e/0x15a0 [ 91.080739] __queue_delayed_work+0x249/0x380 [ 91.080742] queue_delayed_work_on+0x1a2/0x1f0 [ 91.080745] _free_event+0xf27/0x1660 [ 91.080748] put_event+0x48/0x60 [ 91.080752] perf_event_release_kernel+0x8d0/0x10e0 [ 91.080755] perf_release+0x37/0x50 [ 91.080758] __fput+0x385/0xa30 [ 91.080761] ____fput+0x15/0x20 [ 91.080765] task_work_run+0x1e8/0x2a0 [ 91.080769] exit_to_usermode_loop+0x318/0x380 [ 91.080773] do_syscall_64+0x6be/0x820 [ 91.080777] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.080779] [ 91.080783] other info that might help us debug this: [ 91.080785] [ 91.080787] Chain exists of: [ 91.080789] (console_sem).lock --> &rq->lock --> &base->lock [ 91.080804] [ 91.080808] Possible unsafe locking scenario: [ 91.080810] [ 91.080814] CPU0 CPU1 [ 91.080818] ---- ---- [ 91.080821] lock(&base->lock); [ 91.080830] lock(&rq->lock); [ 91.080838] lock(&base->lock); [ 91.080845] lock((console_sem).lock); [ 91.080853] [ 91.080855] *** DEADLOCK *** [ 91.080857] [ 91.080860] 1 lock held by syz-executor3/7244: [ 91.080862] #0: 000000002036bf76 (&base->lock){..-.}, at: lock_timer_base+0xbb/0x2b0 [ 91.080876] [ 91.080879] stack backtrace: [ 91.080885] CPU: 0 PID: 7244 Comm: syz-executor3 Not tainted 4.19.0+ #73 [ 91.080891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.080894] Call Trace: [ 91.080897] dump_stack+0x244/0x39d [ 91.080910] ? dump_stack_print_info.cold.1+0x20/0x20 [ 91.080914] ? vprintk_func+0x85/0x181 [ 91.080918] print_circular_bug.isra.35.cold.54+0x1bd/0x27d [ 91.080922] ? save_trace+0xe0/0x290 [ 91.080925] __lock_acquire+0x3399/0x4c20 [ 91.080928] ? mark_held_locks+0x130/0x130 [ 91.080932] ? dentry_name+0x641/0x8f0 [ 91.080936] ? mark_held_locks+0x130/0x130 [ 91.080940] ? restricted_pointer+0x410/0x410 [ 91.080945] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 91.080949] ? trace_hardirqs_on+0x310/0x310 [ 91.080954] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 91.080958] ? kernel_poison_pages+0x15a/0x290 [ 91.080961] ? kasan_alloc_pages+0x38/0x40 [ 91.080965] ? get_page_from_freelist+0x16db/0x5340 [ 91.080969] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.080972] ? number+0x972/0xca0 [ 91.080975] ? zap_class+0x640/0x640 [ 91.080980] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 91.080983] lock_acquire+0x1ed/0x520 [ 91.080986] ? down_trylock+0x13/0x70 [ 91.080990] ? lock_release+0xa00/0xa00 [ 91.080993] ? trace_hardirqs_off+0xb8/0x310 [ 91.080997] ? vprintk_emit+0x1de/0x990 [ 91.081002] ? trace_hardirqs_on+0x310/0x310 [ 91.081006] ? trace_hardirqs_off+0xb8/0x310 [ 91.081009] ? log_store+0x344/0x4c0 [ 91.081012] ? vprintk_emit+0x372/0x990 [ 91.081016] _raw_spin_lock_irqsave+0x99/0xd0 [ 91.081020] ? down_trylock+0x13/0x70 [ 91.081024] down_trylock+0x13/0x70 [ 91.081028] __down_trylock_console_sem+0xae/0x1f0 [ 91.081032] console_trylock+0x15/0xa0 [ 91.081036] vprintk_emit+0x372/0x990 [ 91.081040] ? wake_up_klogd+0x180/0x180 [ 91.081044] ? update_load_avg+0x387/0x2470 [ 91.081048] ? __lock_acquire+0x62f/0x4c20 [ 91.081052] ? print_usage_bug+0xc0/0xc0 [ 91.081056] ? attach_entity_load_avg+0x860/0x860 [ 91.081060] ? zap_class+0x640/0x640 [ 91.081064] vprintk_default+0x28/0x30 [ 91.081068] vprintk_func+0x7e/0x181 [ 91.081071] printk+0xa7/0xcf [ 91.081076] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 91.081080] ? bpf_prog_kallsyms_find+0xde/0x4a0 [ 91.081084] should_fail+0xac1/0xd01 [ 91.081089] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 91.081093] ? zap_class+0x640/0x640 [ 91.081096] ? print_usage_bug+0xc0/0xc0 [ 91.081101] ? zap_class+0x640/0x640 [ 91.081105] ? __lock_acquire+0x62f/0x4c20 [ 91.081109] ? __lock_acquire+0x62f/0x4c20 [ 91.081113] ? zap_class+0x640/0x640 [ 91.081117] ? __lock_is_held+0xb5/0x140 [ 91.081121] ? mark_held_locks+0x130/0x130 [ 91.081126] ? mark_held_locks+0x130/0x130 [ 91.081129] ? zap_class+0x640/0x640 [ 91.081133] ? __lock_is_held+0xb5/0x140 [ 91.081138] ? __account_cfs_rq_runtime+0x790/0x790 [ 91.081142] ? mark_held_locks+0x130/0x130 [ 91.081146] __should_failslab+0x124/0x180 [ 91.081150] should_failslab+0x9/0x14 [ 91.081154] kmem_cache_alloc+0x47/0x730 [ 91.081158] ? lock_downgrade+0x900/0x900 [ 91.081163] ? __perf_event_task_sched_out+0x33a/0x1bf0 [ 91.081167] __debug_object_init+0xbb8/0x1290 [ 91.081172] ? do_raw_spin_unlock+0xa7/0x330 [ 91.081176] ? do_raw_spin_trylock+0x270/0x270 [ 91.081180] ? debug_object_free+0x690/0x690 [ 91.081184] ? zap_class+0x640/0x640 [ 91.081188] ? find_held_lock+0x36/0x1c0 [ 91.081193] ? debug_object_activate+0x2ba/0x600 [ 91.081197] ? lock_downgrade+0x900/0x900 [ 91.081201] ? trace_hardirqs_off+0xb8/0x310 [ 91.081205] ? kasan_check_read+0x11/0x20 [ 91.081209] ? do_raw_spin_unlock+0xa7/0x330 [ 91.081214] ? trace_hardirqs_on+0x310/0x310 [ 91.081218] ? debug_smp_processor_id+0x1c/0x20 [ 91.081222] ? get_nohz_timer_target+0x8f/0x780 [ 91.081227] debug_object_activate+0x323/0x600 [ 91.081231] ? lock_timer_base+0x21d/0x2b0 [ 91.081235] ? free_obj_work+0xb80/0xb80 [ 91.081239] ? finish_task_switch+0x1b4/0x910 [ 91.081243] ? __switch_to_asm+0x34/0x70 [ 91.081247] add_timer+0x50e/0x15a0 [ 91.081251] ? __switch_to_asm+0x34/0x70 [ 91.081255] ? __switch_to_asm+0x40/0x70 [ 91.081259] ? __switch_to_asm+0x40/0x70 [ 91.081263] ? mod_timer+0x1560/0x1560 [ 91.081267] ? __schedule+0x8d7/0x21d0 [ 91.081271] ? __sched_text_start+0x8/0x8 [ 91.081276] ? perf_trace_sched_process_exec+0x860/0x860 [ 91.081280] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 91.081285] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 91.081289] ? retint_kernel+0x2d/0x2d [ 91.081293] ? trace_hardirqs_on_caller+0xc0/0x310 [ 91.081298] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 91.081302] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 91.081306] ? retint_kernel+0x1b/0x2d [ 91.081311] ? trace_hardirqs_on+0x310/0x310 [ 91.081315] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 91.081319] __queue_delayed_work+0x249/0x380 [ 91.081323] ? trace_hardirqs_off+0xb8/0x310 [ 91.081327] ? rcu_work_rcufn+0xf0/0xf0 [ 91.081332] ? queue_delayed_work_on+0x97/0x1f0 [ 91.081336] queue_delayed_work_on+0x1a2/0x1f0 [ 91.081340] _free_event+0xf27/0x1660 [ 91.081344] ? ring_buffer_attach+0x840/0x840 [ 91.081349] ? _raw_spin_unlock_irq+0x27/0x80 [ 91.081353] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 91.081357] ? trace_hardirqs_on+0xbd/0x310 [ 91.081361] ? kasan_check_read+0x11/0x20 [ 91.081366] ? perf_event_release_kernel+0x2e2/0x10e0 [ 91.081370] ? trace_hardirqs_off_caller+0x310/0x310 [ 91.081374] put_event+0x48/0x60 [ 91.081379] perf_event_release_kernel+0x8d0/0x10e0 [ 91.081383] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.081387] ? put_event+0x60/0x60 [ 91.081391] ? mark_held_locks+0x130/0x130 [ 91.081396] ? perf_trace_sched_process_exec+0x860/0x860 [ 91.081400] ? find_held_lock+0x36/0x1c0 [ 91.081404] ? get_pid_task+0xd6/0x1a0 [ 91.081409] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 91.081413] ? locks_remove_posix+0x47d/0x840 [ 91.081416] ? [ 91.081424] Lost 44 message(s)! [ 91.118731] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 91.198991] FAULT_INJECTION: forcing a failure. [ 91.198991] name failslab, interval 1, probability 0, space 0, times 0 [ 91.306284] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 91.311896] CPU: 0 PID: 7259 Comm: syz-executor2 Not tainted 4.19.0+ #73 [ 91.337235] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 91.339045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.339050] Call Trace: [ 91.339071] dump_stack+0x244/0x39d [ 91.339089] ? dump_stack_print_info.cold.1+0x20/0x20 [ 91.353129] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 91.356894] ? perf_event_update_sibling_time.part.31+0x90/0x90 [ 91.356926] should_fail.cold.4+0xa/0x17 [ 91.356949] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 91.395570] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 91.396459] ? event_function+0x354/0x490 [ 91.400788] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 91.405180] ? kasan_check_read+0x11/0x20 [ 91.405197] ? do_raw_spin_trylock+0x270/0x270 [ 91.405218] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.503853] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 91.507670] ? __perf_remove_from_context+0x1ec/0x470 [ 91.509302] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 91.512300] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.592197] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 91.593965] ? trace_hardirqs_on+0xbd/0x310 [ 91.593982] ? smp_call_function_single+0x25a/0x660 [ 91.594002] ? fs_reclaim_acquire+0x20/0x20 [ 91.594019] ? lock_downgrade+0x900/0x900 [ 91.594040] ? perf_event_release_kernel+0x36c/0x10e0 [ 91.596779] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 91.600254] ? perf_trace_sched_process_exec+0x860/0x860 [ 91.600270] ? ima_get_action+0x7e/0xa0 [ 91.600292] __should_failslab+0x124/0x180 [ 91.600312] should_failslab+0x9/0x14 [ 92.344019] __kmalloc+0x2e0/0x760 [ 92.347561] ? perf_duration_warn+0x40/0x40 [ 92.351886] ? perf_event_release_kernel+0x36c/0x10e0 [ 92.357280] ? bpf_prog_array_copy+0x345/0x420 [ 92.361862] bpf_prog_array_copy+0x345/0x420 [ 92.366293] perf_event_detach_bpf_prog+0x147/0x420 [ 92.371315] ? perf_event_attach_bpf_prog+0x400/0x400 [ 92.376503] ? lock_downgrade+0x900/0x900 [ 92.380664] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.386200] ? task_function_call+0x1e1/0x280 [ 92.390699] _free_event+0xf39/0x1660 [ 92.394502] ? ring_buffer_attach+0x840/0x840 [ 92.398995] ? event_function_call+0x343/0x600 [ 92.403583] ? lock_downgrade+0x900/0x900 [ 92.407738] ? trace_hardirqs_on+0xbd/0x310 [ 92.412060] ? kasan_check_read+0x11/0x20 [ 92.416207] ? perf_event_release_kernel+0x2e2/0x10e0 [ 92.421398] ? trace_hardirqs_off_caller+0x310/0x310 [ 92.426508] put_event+0x48/0x60 [ 92.429875] perf_event_release_kernel+0x8d0/0x10e0 [ 92.434898] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.440446] ? put_event+0x60/0x60 [ 92.443991] ? _parse_integer+0x180/0x180 [ 92.448141] ? mark_held_locks+0x130/0x130 [ 92.452393] ? perf_trace_sched_process_exec+0x860/0x860 [ 92.457860] ? usercopy_warn+0x110/0x110 [ 92.461934] ? get_pid_task+0xd6/0x1a0 [ 92.465828] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 92.471363] ? locks_remove_posix+0x47d/0x840 [ 92.475859] ? vfs_lock_file+0xe0/0xe0 [ 92.479746] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 92.485286] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.490828] ? fsnotify+0x4e5/0xf20 [ 92.494473] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 92.500024] ? locks_remove_file+0x3c6/0x5c0 [ 92.504441] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 92.509977] ? ima_file_free+0x132/0x650 [ 92.514037] ? fsnotify_first_mark+0x350/0x350 [ 92.518621] ? ima_file_check+0x130/0x130 [ 92.522781] ? fsnotify+0xf20/0xf20 [ 92.526422] ? perf_event_release_kernel+0x10e0/0x10e0 [ 92.531697] perf_release+0x37/0x50 [ 92.535337] __fput+0x385/0xa30 [ 92.538621] ? get_max_files+0x20/0x20 [ 92.542518] ? trace_hardirqs_on+0xbd/0x310 [ 92.546840] ? kasan_check_read+0x11/0x20 [ 92.550995] ? task_work_run+0x1af/0x2a0 [ 92.555057] ? trace_hardirqs_off_caller+0x310/0x310 [ 92.560163] ? filp_close+0x1cd/0x250 [ 92.563967] ____fput+0x15/0x20 [ 92.567251] task_work_run+0x1e8/0x2a0 [ 92.571140] ? task_work_cancel+0x240/0x240 [ 92.575467] ? copy_fd_bitmaps+0x210/0x210 [ 92.579708] exit_to_usermode_loop+0x318/0x380 [ 92.584295] ? __bpf_trace_sys_exit+0x30/0x30 [ 92.588797] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.594362] do_syscall_64+0x6be/0x820 [ 92.598250] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 92.603619] ? syscall_return_slowpath+0x5e0/0x5e0 [ 92.608562] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 92.613407] ? trace_hardirqs_on_caller+0x310/0x310 [ 92.618428] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 92.623445] ? prepare_exit_to_usermode+0x291/0x3b0 [ 92.628730] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 92.633577] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 92.638761] RIP: 0033:0x457569 [ 92.641958] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 92.660858] RSP: 002b:00007f943721bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 2018/10/31 18:21:15 executed programs: 6 [ 92.668560] RAX: 0000000000000000 RBX: 00007f943721bc90 RCX: 0000000000457569 [ 92.675824] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 92.683088] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 92.690359] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f943721c6d4 [ 92.697634] R13: 00000000004efe32 R14: 00000000004cc6e0 R15: 0000000000000007 [ 92.734687] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 92.746063] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 92.784894] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 92.799831] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 92.811884] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 92.842785] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 92.854732] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 92.861259] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 92.872523] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 92.879682] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 92.890436] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 92.897192] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 92.909111] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 92.915690] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 92.931702] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 92.962194] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 92.990748] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 92.997356] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 93.007219] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 93.014360] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 93.025281] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 93.034003] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 93.052124] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 93.065608] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 93.076073] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 93.082504] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 93.093091] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 93.104210] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 93.114562] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 93.121815] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 93.132185] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 93.144242] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 93.156021] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 93.162589] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 93.172775] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 93.179463] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 93.192194] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 93.210487] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 93.229939] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 93.236926] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 93.247132] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 93.253694] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 93.263919] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 93.270741] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 93.289986] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 93.305326] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 93.318867] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 93.326355] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 93.340494] FAULT_INJECTION: forcing a failure. [ 93.340494] name failslab, interval 1, probability 0, space 0, times 0 [ 93.344044] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 93.358946] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 93.369426] CPU: 0 PID: 7388 Comm: syz-executor2 Not tainted 4.19.0+ #73 [ 93.371357] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 93.376292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.376298] Call Trace: [ 93.376319] dump_stack+0x244/0x39d [ 93.376333] ? dump_stack_print_info.cold.1+0x20/0x20 [ 93.376348] ? perf_event_update_sibling_time.part.31+0x90/0x90 [ 93.376373] should_fail.cold.4+0xa/0x17 [ 93.382819] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 93.392147] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 93.392159] ? event_function+0x354/0x490 [ 93.392179] ? kasan_check_read+0x11/0x20 [ 93.392194] ? do_raw_spin_trylock+0x270/0x270 [ 93.392214] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.395362] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 93.398416] ? __perf_remove_from_context+0x1ec/0x470 [ 93.398432] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.398452] ? trace_hardirqs_on+0xbd/0x310 [ 93.403732] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 93.409700] ? smp_call_function_single+0x25a/0x660 [ 93.409720] ? fs_reclaim_acquire+0x20/0x20 [ 93.409739] ? lock_downgrade+0x900/0x900 [ 93.414429] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 93.423244] ? perf_event_release_kernel+0x36c/0x10e0 [ 93.423264] ? perf_trace_sched_process_exec+0x860/0x860 [ 93.423278] ? ima_get_action+0x7e/0xa0 [ 93.423298] __should_failslab+0x124/0x180 [ 93.423319] should_failslab+0x9/0x14 [ 93.428955] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 93.432561] __kmalloc+0x2e0/0x760 [ 93.432577] ? perf_duration_warn+0x40/0x40 [ 93.432596] ? perf_event_release_kernel+0x36c/0x10e0 [ 93.437311] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 93.441318] ? bpf_prog_array_copy+0x345/0x420 [ 93.441333] bpf_prog_array_copy+0x345/0x420 [ 93.441355] perf_event_detach_bpf_prog+0x147/0x420 [ 93.441375] ? perf_event_attach_bpf_prog+0x400/0x400 [ 93.447057] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 93.453345] ? lock_downgrade+0x900/0x900 [ 93.453362] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.453374] ? task_function_call+0x1e1/0x280 [ 93.453398] _free_event+0xf39/0x1660 [ 93.460691] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 93.464366] ? ring_buffer_attach+0x840/0x840 [ 93.464380] ? event_function_call+0x343/0x600 [ 93.464404] ? lock_downgrade+0x900/0x900 [ 93.468770] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 93.478161] ? trace_hardirqs_on+0xbd/0x310 [ 93.478176] ? kasan_check_read+0x11/0x20 [ 93.478191] ? perf_event_release_kernel+0x2e2/0x10e0 [ 93.478206] ? trace_hardirqs_off_caller+0x310/0x310 [ 93.478226] put_event+0x48/0x60 [ 93.647879] perf_event_release_kernel+0x8d0/0x10e0 [ 93.652914] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.658461] ? put_event+0x60/0x60 [ 93.662002] ? _parse_integer+0x180/0x180 [ 93.666157] ? mark_held_locks+0x130/0x130 [ 93.670391] ? perf_trace_sched_process_exec+0x860/0x860 [ 93.675844] ? usercopy_warn+0x110/0x110 [ 93.679918] ? get_pid_task+0xd6/0x1a0 [ 93.683816] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 93.689355] ? locks_remove_posix+0x47d/0x840 [ 93.693854] ? vfs_lock_file+0xe0/0xe0 [ 93.697742] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 93.703282] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.708817] ? fsnotify+0x4e5/0xf20 [ 93.712451] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 93.717990] ? locks_remove_file+0x3c6/0x5c0 [ 93.722399] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 93.727936] ? ima_file_free+0x132/0x650 [ 93.731999] ? fsnotify_first_mark+0x350/0x350 [ 93.736582] ? ima_file_check+0x130/0x130 [ 93.740728] ? fsnotify+0xf20/0xf20 [ 93.744367] ? perf_event_release_kernel+0x10e0/0x10e0 [ 93.749650] perf_release+0x37/0x50 [ 93.753281] __fput+0x385/0xa30 [ 93.756569] ? get_max_files+0x20/0x20 [ 93.760460] ? trace_hardirqs_on+0xbd/0x310 [ 93.764781] ? kasan_check_read+0x11/0x20 [ 93.768935] ? task_work_run+0x1af/0x2a0 [ 93.773005] ? trace_hardirqs_off_caller+0x310/0x310 [ 93.778107] ? filp_close+0x1cd/0x250 [ 93.781918] ____fput+0x15/0x20 [ 93.785204] task_work_run+0x1e8/0x2a0 [ 93.789123] ? task_work_cancel+0x240/0x240 [ 93.793465] ? copy_fd_bitmaps+0x210/0x210 [ 93.797711] exit_to_usermode_loop+0x318/0x380 [ 93.802302] ? __bpf_trace_sys_exit+0x30/0x30 [ 93.806808] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.812355] do_syscall_64+0x6be/0x820 [ 93.816249] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 93.821633] ? syscall_return_slowpath+0x5e0/0x5e0 [ 93.826569] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 93.831415] ? trace_hardirqs_on_caller+0x310/0x310 [ 93.836437] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 93.841458] ? prepare_exit_to_usermode+0x291/0x3b0 [ 93.846483] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 93.851333] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.856522] RIP: 0033:0x457569 [ 93.859719] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 93.878638] RSP: 002b:00007f943721bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 93.886349] RAX: 0000000000000000 RBX: 00007f943721bc90 RCX: 0000000000457569 [ 93.893616] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 93.900899] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 93.908177] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f943721c6d4 [ 93.915450] R13: 00000000004efe32 R14: 00000000004cc6e0 R15: 0000000000000007 [ 93.933382] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 93.950298] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 93.962900] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 93.974848] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 93.986944] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 93.993479] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 94.004152] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 94.010733] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 94.036259] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 94.042743] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 94.068215] FAULT_INJECTION: forcing a failure. [ 94.068215] name failslab, interval 1, probability 0, space 0, times 0 [ 94.083745] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 94.090485] CPU: 1 PID: 7424 Comm: syz-executor2 Not tainted 4.19.0+ #73 [ 94.093619] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 94.097332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.097337] Call Trace: [ 94.097358] dump_stack+0x244/0x39d [ 94.097376] ? dump_stack_print_info.cold.1+0x20/0x20 [ 94.097393] ? perf_event_update_sibling_time.part.31+0x90/0x90 [ 94.097421] should_fail.cold.4+0xa/0x17 [ 94.107984] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 94.116225] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 94.116238] ? event_function+0x354/0x490 [ 94.116263] ? kasan_check_read+0x11/0x20 [ 94.116279] ? do_raw_spin_trylock+0x270/0x270 [ 94.116295] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.116310] ? __perf_remove_from_context+0x1ec/0x470 [ 94.116323] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.116340] ? trace_hardirqs_on+0xbd/0x310 [ 94.116359] ? smp_call_function_single+0x25a/0x660 [ 94.119335] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 94.122566] ? fs_reclaim_acquire+0x20/0x20 [ 94.122584] ? lock_downgrade+0x900/0x900 [ 94.122600] ? perf_event_release_kernel+0x36c/0x10e0 [ 94.122620] ? perf_trace_sched_process_exec+0x860/0x860 [ 94.122650] ? ima_get_action+0x7e/0xa0 [ 94.129282] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 94.133896] __should_failslab+0x124/0x180 [ 94.133921] should_failslab+0x9/0x14 [ 94.133937] __kmalloc+0x2e0/0x760 [ 94.133952] ? perf_duration_warn+0x40/0x40 [ 94.133967] ? perf_event_release_kernel+0x36c/0x10e0 [ 94.133987] ? bpf_prog_array_copy+0x345/0x420 [ 94.134004] bpf_prog_array_copy+0x345/0x420 [ 94.134024] perf_event_detach_bpf_prog+0x147/0x420 [ 94.138487] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 94.144486] ? perf_event_attach_bpf_prog+0x400/0x400 [ 94.144503] ? lock_downgrade+0x900/0x900 [ 94.144521] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.144535] ? task_function_call+0x1e1/0x280 [ 94.144556] _free_event+0xf39/0x1660 [ 94.144575] ? ring_buffer_attach+0x840/0x840 [ 94.144589] ? event_function_call+0x343/0x600 [ 94.144609] ? lock_downgrade+0x900/0x900 [ 94.151537] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 94.153861] ? trace_hardirqs_on+0xbd/0x310 [ 94.153879] ? kasan_check_read+0x11/0x20 [ 94.153895] ? perf_event_release_kernel+0x2e2/0x10e0 [ 94.153910] ? trace_hardirqs_off_caller+0x310/0x310 [ 94.153931] put_event+0x48/0x60 [ 94.153947] perf_event_release_kernel+0x8d0/0x10e0 [ 94.153962] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.153980] ? put_event+0x60/0x60 [ 94.158434] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 94.162704] ? _parse_integer+0x180/0x180 [ 94.162722] ? mark_held_locks+0x130/0x130 [ 94.162737] ? perf_trace_sched_process_exec+0x860/0x860 [ 94.162752] ? usercopy_warn+0x110/0x110 [ 94.162781] ? get_pid_task+0xd6/0x1a0 [ 94.169162] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 94.173499] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 94.173515] ? locks_remove_posix+0x47d/0x840 [ 94.173531] ? vfs_lock_file+0xe0/0xe0 [ 94.173545] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 94.173561] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.173575] ? fsnotify+0x4e5/0xf20 [ 94.173591] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 94.173603] ? locks_remove_file+0x3c6/0x5c0 [ 94.173618] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 94.173648] ? ima_file_free+0x132/0x650 [ 94.179719] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 94.183516] ? fsnotify_first_mark+0x350/0x350 [ 94.183532] ? ima_file_check+0x130/0x130 [ 94.183546] ? fsnotify+0xf20/0xf20 [ 94.183571] ? perf_event_release_kernel+0x10e0/0x10e0 [ 94.183586] perf_release+0x37/0x50 [ 94.183601] __fput+0x385/0xa30 [ 94.183619] ? get_max_files+0x20/0x20 [ 94.183646] ? trace_hardirqs_on+0xbd/0x310 [ 94.183665] ? kasan_check_read+0x11/0x20 [ 94.189553] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 94.198129] ? task_work_run+0x1af/0x2a0 [ 94.198145] ? trace_hardirqs_off_caller+0x310/0x310 [ 94.198160] ? filp_close+0x1cd/0x250 [ 94.198180] ____fput+0x15/0x20 [ 94.198194] task_work_run+0x1e8/0x2a0 [ 94.198211] ? task_work_cancel+0x240/0x240 [ 94.198228] ? copy_fd_bitmaps+0x210/0x210 [ 94.198246] exit_to_usermode_loop+0x318/0x380 [ 94.198261] ? __bpf_trace_sys_exit+0x30/0x30 [ 94.198281] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.198298] do_syscall_64+0x6be/0x820 [ 94.198319] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 94.203152] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 94.206791] ? syscall_return_slowpath+0x5e0/0x5e0 [ 94.206804] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 94.206820] ? trace_hardirqs_on_caller+0x310/0x310 [ 94.206835] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 94.206851] ? prepare_exit_to_usermode+0x291/0x3b0 [ 94.206871] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 94.206894] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 94.206905] RIP: 0033:0x457569 [ 94.206920] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 94.206934] RSP: 002b:00007f943721bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 94.213041] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 94.217559] RAX: 0000000000000000 RBX: 00007f943721bc90 RCX: 0000000000457569 [ 94.217566] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 94.217573] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 94.217580] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f943721c6d4 [ 94.217597] R13: 00000000004efe32 R14: 00000000004cc6e0 R15: 0000000000000007 [ 94.249878] FAULT_INJECTION: forcing a failure. [ 94.249878] name failslab, interval 1, probability 0, space 0, times 0 [ 94.254740] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 94.262880] CPU: 1 PID: 7432 Comm: syz-executor4 Not tainted 4.19.0+ #73 [ 94.270374] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 94.272897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.272903] Call Trace: [ 94.272924] dump_stack+0x244/0x39d [ 94.272942] ? dump_stack_print_info.cold.1+0x20/0x20 [ 94.272959] ? debug_mutex_wake_waiter+0x630/0x630 [ 94.272972] ? mutex_destroy+0x200/0x200 [ 94.272993] should_fail.cold.4+0xa/0x17 [ 94.286283] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 94.287881] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 94.287909] ? kasan_check_read+0x11/0x20 [ 94.287926] ? do_raw_spin_trylock+0x270/0x270 [ 94.287946] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.298309] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 94.300720] ? __perf_remove_from_context+0x1ec/0x470 [ 94.300740] ? trace_hardirqs_on+0xbd/0x310 [ 94.300756] ? smp_call_function_single+0x25a/0x660 [ 94.300776] ? fs_reclaim_acquire+0x20/0x20 [ 94.300796] ? lock_downgrade+0x900/0x900 [ 94.785282] ? perf_event_release_kernel+0x36c/0x10e0 [ 94.790482] ? perf_trace_sched_process_exec+0x860/0x860 [ 94.795936] ? ima_get_action+0x7e/0xa0 [ 94.799916] __should_failslab+0x124/0x180 [ 94.804157] should_failslab+0x9/0x14 [ 94.807956] __kmalloc+0x2e0/0x760 [ 94.811496] ? perf_duration_warn+0x40/0x40 [ 94.815821] ? perf_event_release_kernel+0x36c/0x10e0 [ 94.821272] ? bpf_prog_array_copy+0x345/0x420 [ 94.825874] bpf_prog_array_copy+0x345/0x420 [ 94.830292] perf_event_detach_bpf_prog+0x147/0x420 [ 94.835318] ? perf_event_attach_bpf_prog+0x400/0x400 [ 94.840516] ? lock_downgrade+0x900/0x900 [ 94.844676] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.850215] ? task_function_call+0x1e1/0x280 [ 94.854722] _free_event+0xf39/0x1660 [ 94.858527] ? ring_buffer_attach+0x840/0x840 [ 94.863022] ? event_function_call+0x343/0x600 [ 94.867616] ? lock_downgrade+0x900/0x900 [ 94.871784] ? trace_hardirqs_on+0xbd/0x310 [ 94.876110] ? kasan_check_read+0x11/0x20 [ 94.880266] ? perf_event_release_kernel+0x2e2/0x10e0 [ 94.885463] ? trace_hardirqs_off_caller+0x310/0x310 [ 94.890575] put_event+0x48/0x60 [ 94.893952] perf_event_release_kernel+0x8d0/0x10e0 [ 94.898968] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.904509] ? put_event+0x60/0x60 [ 94.908050] ? _parse_integer+0x180/0x180 [ 94.912204] ? mark_held_locks+0x130/0x130 [ 94.916444] ? perf_trace_sched_process_exec+0x860/0x860 [ 94.921893] ? usercopy_warn+0x110/0x110 [ 94.925964] ? get_pid_task+0xd6/0x1a0 [ 94.929857] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 94.935393] ? locks_remove_posix+0x47d/0x840 [ 94.939894] ? vfs_lock_file+0xe0/0xe0 [ 94.943780] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 94.949321] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.954885] ? fsnotify+0x4e5/0xf20 [ 94.958515] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 94.964147] ? locks_remove_file+0x3c6/0x5c0 [ 94.968559] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 94.974100] ? ima_file_free+0x132/0x650 [ 94.978167] ? fsnotify_first_mark+0x350/0x350 [ 94.982757] ? ima_file_check+0x130/0x130 [ 94.986923] ? fsnotify+0xf20/0xf20 [ 94.990561] ? perf_event_release_kernel+0x10e0/0x10e0 [ 94.995849] perf_release+0x37/0x50 [ 94.999488] __fput+0x385/0xa30 [ 95.002771] ? get_max_files+0x20/0x20 [ 95.006668] ? trace_hardirqs_on+0xbd/0x310 [ 95.011000] ? kasan_check_read+0x11/0x20 [ 95.015149] ? task_work_run+0x1af/0x2a0 [ 95.019212] ? trace_hardirqs_off_caller+0x310/0x310 [ 95.024407] ? filp_close+0x1cd/0x250 [ 95.028216] ____fput+0x15/0x20 [ 95.031497] task_work_run+0x1e8/0x2a0 [ 95.035387] ? task_work_cancel+0x240/0x240 [ 95.039720] ? copy_fd_bitmaps+0x210/0x210 [ 95.043963] exit_to_usermode_loop+0x318/0x380 [ 95.048547] ? __bpf_trace_sys_exit+0x30/0x30 [ 95.053063] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 95.058611] do_syscall_64+0x6be/0x820 [ 95.062516] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 95.067890] ? syscall_return_slowpath+0x5e0/0x5e0 [ 95.072823] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 95.077675] ? trace_hardirqs_on_caller+0x310/0x310 [ 95.082698] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 95.087720] ? prepare_exit_to_usermode+0x291/0x3b0 [ 95.092744] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 95.097597] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 95.102793] RIP: 0033:0x457569 [ 95.105994] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 95.124898] RSP: 002b:00007ff243023c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 95.132615] RAX: 0000000000000000 RBX: 00007ff243023c90 RCX: 0000000000457569 [ 95.139905] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 95.147201] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 95.154483] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff2430246d4 [ 95.161765] R13: 00000000004efe32 R14: 00000000004cc6e0 R15: 0000000000000007 [ 95.173766] FAULT_INJECTION: forcing a failure. [ 95.173766] name failslab, interval 1, probability 0, space 0, times 0 [ 95.178889] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 95.206962] CPU: 0 PID: 7435 Comm: syz-executor3 Not tainted 4.19.0+ #73 [ 95.207209] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 95.213847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.213852] Call Trace: [ 95.213874] dump_stack+0x244/0x39d [ 95.213889] ? dump_stack_print_info.cold.1+0x20/0x20 [ 95.213912] ? debug_mutex_wake_waiter+0x630/0x630 [ 95.213924] ? mutex_destroy+0x200/0x200 [ 95.213945] should_fail.cold.4+0xa/0x17 [ 95.213962] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 95.213988] ? mark_held_locks+0x130/0x130 [ 95.214007] ? trace_hardirqs_on+0xbd/0x310 [ 95.214022] ? smp_call_function_single+0x25a/0x660 [ 95.214041] ? fs_reclaim_acquire+0x20/0x20 [ 95.214060] ? lock_downgrade+0x900/0x900 [ 95.220838] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 95.229843] ? perf_event_release_kernel+0x36c/0x10e0 [ 95.229863] ? perf_trace_sched_process_exec+0x860/0x860 [ 95.229877] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 95.229890] ? __perf_event_header_size.isra.37+0x15f/0x1b0 [ 95.229919] __should_failslab+0x124/0x180 [ 95.316921] should_failslab+0x9/0x14 [ 95.320727] __kmalloc+0x2e0/0x760 [ 95.324278] ? perf_event_release_kernel+0x36c/0x10e0 [ 95.329474] ? bpf_prog_array_copy+0x345/0x420 [ 95.334060] bpf_prog_array_copy+0x345/0x420 [ 95.338477] perf_event_detach_bpf_prog+0x147/0x420 [ 95.343510] ? perf_event_attach_bpf_prog+0x400/0x400 [ 95.348719] ? lock_downgrade+0x900/0x900 [ 95.353325] ? trace_hardirqs_on+0xbd/0x310 [ 95.357666] ? kasan_check_read+0x11/0x20 [ 95.361817] ? event_function_call+0x455/0x600 [ 95.366404] _free_event+0xf39/0x1660 [ 95.370228] ? ring_buffer_attach+0x840/0x840 [ 95.374725] ? event_function_call+0x343/0x600 [ 95.379328] ? lock_downgrade+0x900/0x900 [ 95.383483] ? trace_hardirqs_on+0xbd/0x310 [ 95.387818] ? kasan_check_read+0x11/0x20 [ 95.391973] ? perf_event_release_kernel+0x2e2/0x10e0 [ 95.397171] ? trace_hardirqs_off_caller+0x310/0x310 [ 95.402291] put_event+0x48/0x60 [ 95.405690] perf_event_release_kernel+0x8d0/0x10e0 [ 95.410708] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 95.416256] ? put_event+0x60/0x60 [ 95.420063] ? _parse_integer+0x180/0x180 [ 95.424219] ? mark_held_locks+0x130/0x130 [ 95.428455] ? perf_trace_sched_process_exec+0x860/0x860 [ 95.433915] ? usercopy_warn+0x110/0x110 [ 95.437982] ? get_pid_task+0xd6/0x1a0 [ 95.441874] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 95.447419] ? locks_remove_posix+0x47d/0x840 [ 95.451920] ? vfs_lock_file+0xe0/0xe0 [ 95.455807] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 95.461526] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 95.467066] ? fsnotify+0x4e5/0xf20 [ 95.470700] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 95.476240] ? locks_remove_file+0x3c6/0x5c0 [ 95.480660] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 95.486551] ? ima_file_free+0x132/0x650 [ 95.490623] ? fsnotify_first_mark+0x350/0x350 [ 95.495219] ? ima_file_check+0x130/0x130 [ 95.499371] ? fsnotify+0xf20/0xf20 [ 95.503012] ? perf_event_release_kernel+0x10e0/0x10e0 [ 95.508304] perf_release+0x37/0x50 [ 95.511963] __fput+0x385/0xa30 [ 95.515265] ? get_max_files+0x20/0x20 [ 95.519181] ? trace_hardirqs_on+0xbd/0x310 [ 95.523511] ? kasan_check_read+0x11/0x20 [ 95.527666] ? task_work_run+0x1af/0x2a0 [ 95.531731] ? trace_hardirqs_off_caller+0x310/0x310 [ 95.536850] ? filp_close+0x1cd/0x250 [ 95.540665] ____fput+0x15/0x20 [ 95.543946] task_work_run+0x1e8/0x2a0 [ 95.547837] ? task_work_cancel+0x240/0x240 [ 95.552159] ? copy_fd_bitmaps+0x210/0x210 [ 95.556407] exit_to_usermode_loop+0x318/0x380 [ 95.561005] ? __bpf_trace_sys_exit+0x30/0x30 [ 95.565512] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 95.571068] do_syscall_64+0x6be/0x820 [ 95.574968] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 95.580357] ? syscall_return_slowpath+0x5e0/0x5e0 [ 95.585310] ? trace_hardirqs_on_caller+0x310/0x310 [ 95.590332] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 95.595354] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 95.602041] ? __switch_to_asm+0x40/0x70 [ 95.606120] ? __switch_to_asm+0x34/0x70 [ 95.610206] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 95.615077] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 95.620269] RIP: 0033:0x457569 [ 95.623467] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 95.642367] RSP: 002b:00007f208e02ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 95.650078] RAX: 0000000000000000 RBX: 00007f208e02ac90 RCX: 0000000000457569 [ 95.657346] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 95.664611] RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 95.671887] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f208e02b6d4 [ 95.679157] R13: 00000000004efe32 R14: 00000000004cc6e0 R15: 0000000000000007 [ 95.694504] FAULT_INJECTION: forcing a failure. [ 95.694504] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 95.706421] CPU: 0 PID: 7443 Comm: syz-executor0 Not tainted 4.19.0+ #73 [ 95.713269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.722640] Call Trace: [ 95.725242] dump_stack+0x244/0x39d [ 95.728890] ? dump_stack_print_info.cold.1+0x20/0x20 [ 95.734108] should_fail.cold.4+0xa/0x17 [ 95.738190] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 95.743303] ? activate_page+0x1040/0x1040 [ 95.747550] ? __unlock_page_memcg+0x53/0x100 [ 95.752057] ? lock_downgrade+0x900/0x900 [ 95.756235] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 95.761200] ? zswap_frontswap_store+0x1950/0x1aec [ 95.766146] ? vma_kernel_pagesize+0xb0/0xb0 [ 95.770573] ? mem_cgroup_hierarchy_write+0x230/0x230 [ 95.775778] ? __unlock_page_memcg+0x70/0x100 [ 95.780293] ? unlock_page_memcg+0x2c/0x40 [ 95.784544] ? page_remove_rmap+0x22e/0x1a30 [ 95.788966] ? page_add_file_rmap+0x1470/0x1470 [ 95.793666] ? perf_tp_event+0x92f/0xc20 [ 95.797756] ? __update_load_avg_se+0xae0/0xae0 [ 95.802475] __alloc_pages_nodemask+0x34b/0xde0 [ 95.807163] ? find_next_bit+0x104/0x130 [ 95.811241] ? __alloc_pages_slowpath+0x2e10/0x2e10 [ 95.816268] ? select_idle_sibling+0x997/0xdb0 [ 95.820869] ? task_numa_work+0xea0/0xea0 [ 95.825045] ? kasan_check_read+0x11/0x20 [ 95.829205] ? page_mapcount+0x3b5/0x5d0 [ 95.833277] ? fault_around_bytes_set+0x90/0x90 [ 95.837959] ? reweight_entity+0x7d5/0x10f0 [ 95.842300] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 95.847855] alloc_pages_current+0x173/0x350 [ 95.852312] __get_free_pages+0xc/0x40 [ 95.856209] __tlb_remove_page_size+0x2e5/0x500 [ 95.860899] unmap_page_range+0x11fb/0x2930 [ 95.865256] ? vm_normal_page_pmd+0x510/0x510 [ 95.869773] ? is_bpf_text_address+0xd3/0x170 [ 95.874280] ? kernel_text_address+0x79/0xf0 [ 95.878701] ? __kernel_text_address+0xd/0x40 [ 95.883210] ? unwind_get_return_address+0x61/0xa0 [ 95.888163] ? save_stack+0xa9/0xd0 [ 95.891817] ? __kasan_slab_free+0x102/0x150 [ 95.896234] ? kasan_slab_free+0xe/0x10 [ 95.900207] ? kmem_cache_free+0x83/0x290 [ 95.904353] ? __khugepaged_exit+0x429/0x6a0 [ 95.908767] ? mmput+0x4dc/0x610 [ 95.912136] ? do_exit+0xe74/0x26d0 [ 95.915769] ? do_group_exit+0x177/0x440 [ 95.919833] ? get_signal+0x8b0/0x1980 [ 95.923727] ? do_signal+0x9c/0x21c0 [ 95.927443] ? exit_to_usermode_loop+0x2e5/0x380 [ 95.932196] ? do_syscall_64+0x6be/0x820 [ 95.936258] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 95.941634] ? trace_hardirqs_off+0xb8/0x310 [ 95.946067] ? kasan_check_read+0x11/0x20 [ 95.950215] ? do_raw_spin_unlock+0xa7/0x330 [ 95.954636] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 95.960176] ? uprobe_munmap+0x14c/0x450 [ 95.964239] ? uprobe_mmap+0xd60/0xd60 [ 95.968132] ? trace_hardirqs_off+0xb8/0x310 [ 95.972545] ? debug_check_no_obj_freed+0x305/0x58d [ 95.977565] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 95.983106] ? check_preemption_disabled+0x48/0x280 [ 95.988128] unmap_single_vma+0x19b/0x310 [ 95.992280] unmap_vmas+0x125/0x200 [ 95.995915] exit_mmap+0x2be/0x590 [ 95.999457] ? __ia32_sys_munmap+0x80/0x80 [ 96.003694] ? __khugepaged_exit+0x455/0x6a0 [ 96.008114] ? __might_sleep+0x95/0x190 [ 96.012088] mmput+0x247/0x610 [ 96.015286] ? lock_downgrade+0x900/0x900 [ 96.019434] ? set_mm_exe_file+0x200/0x200 [ 96.023704] ? kasan_check_read+0x11/0x20 [ 96.027873] ? do_raw_spin_unlock+0xa7/0x330 [ 96.032291] ? do_raw_spin_trylock+0x270/0x270 [ 96.036871] ? up_read_non_owner+0x100/0x100 [ 96.041286] ? __down_interruptible+0x700/0x700 [ 96.045962] do_exit+0xe74/0x26d0 [ 96.049421] ? mm_update_next_owner+0x990/0x990 [ 96.054093] ? mark_held_locks+0x130/0x130 [ 96.058332] ? bpf_prog_kallsyms_find+0xde/0x4a0 [ 96.063096] ? is_bpf_text_address+0xac/0x170 [ 96.067597] ? lock_downgrade+0x900/0x900 [ 96.071758] ? mark_held_locks+0x130/0x130 [ 96.075999] ? kasan_check_read+0x11/0x20 [ 96.080155] ? __debug_object_init+0x57d/0x1290 [ 96.084825] ? lock_downgrade+0x900/0x900 [ 96.088972] ? lock_downgrade+0x900/0x900 [ 96.093120] ? mark_held_locks+0x130/0x130 [ 96.097358] ? trace_hardirqs_on+0xbd/0x310 [ 96.101681] ? kasan_check_read+0x11/0x20 [ 96.105830] ? __debug_object_init+0x57d/0x1290 [ 96.110503] ? trace_hardirqs_off_caller+0x310/0x310 [ 96.115604] ? do_raw_spin_trylock+0x270/0x270 [ 96.120197] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 96.125129] ? retint_kernel+0x2d/0x2d [ 96.129020] ? trace_hardirqs_on_caller+0xc0/0x310 [ 96.133955] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 96.138717] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 96.144174] ? __debug_object_init+0x57d/0x1290 [ 96.148868] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 96.153660] ? retint_kernel+0x2d/0x2d [ 96.157556] ? debug_object_active_state+0x2f5/0x4d0 [ 96.162662] ? memset+0x31/0x40 [ 96.165954] ? __dequeue_signal+0xf9/0x7d0 [ 96.170199] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 96.175739] ? get_signal+0x95b/0x1980 [ 96.179650] ? lock_downgrade+0x900/0x900 [ 96.183808] do_group_exit+0x177/0x440 [ 96.187701] ? trace_hardirqs_off_caller+0x310/0x310 [ 96.192809] ? __ia32_sys_exit+0x50/0x50 [ 96.196877] get_signal+0x8b0/0x1980 [ 96.200600] ? ptrace_notify+0x130/0x130 [ 96.204675] ? kzfree+0x28/0x30 [ 96.207964] ? blkg_prfill_rwstat_field_recursive+0x170/0x170 [ 96.213856] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 96.219405] do_signal+0x9c/0x21c0 [ 96.222960] ? trace_hardirqs_on+0xbd/0x310 [ 96.227287] ? kasan_check_read+0x11/0x20 [ 96.231469] ? task_work_run+0x1af/0x2a0 [ 96.235550] ? setup_sigcontext+0x7d0/0x7d0 [ 96.239875] ? perf_trace_sched_process_exec+0x860/0x860 [ 96.245335] ? filp_close+0x1cd/0x250 [ 96.249146] ? trace_hardirqs_on+0xbd/0x310 [ 96.253472] ? do_syscall_64+0x6be/0x820 [ 96.257542] ? copy_fd_bitmaps+0x210/0x210 [ 96.261780] exit_to_usermode_loop+0x2e5/0x380 [ 96.266366] ? __bpf_trace_sys_exit+0x30/0x30 [ 96.270867] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 96.276414] do_syscall_64+0x6be/0x820 [ 96.280304] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 96.285672] ? syscall_return_slowpath+0x5e0/0x5e0 [ 96.290607] ? trace_hardirqs_on_caller+0x310/0x310 [ 96.295641] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 96.300667] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 96.307338] ? __switch_to_asm+0x40/0x70 [ 96.311402] ? __switch_to_asm+0x34/0x70 [ 96.315472] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 96.320319] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 96.325507] RIP: 0033:0x457569 [ 96.328721] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 96.347654] RSP: 002b:00007f2d42c7fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 96.355375] RAX: 0000000000000000 RBX: 00007f2d42c7fc90 RCX: 0000000000457569 [ 96.362658] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 96.369929] RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 96.377198] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d42c806d4 [ 96.384462] R13: 00000000004efe32 R14: 00000000004cc6e0 R15: 0000000000000007 [ 96.397086] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 96.422265] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 96.456298] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 96.462813] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 96.480027] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 96.491073] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 96.631604] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 96.647519] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 96.731422] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 96.750914] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 96.767055] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 96.773825] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 96.784771] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 96.791298] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 96.814383] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 96.825467] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 96.866003] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 96.888495] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 96.909143] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 96.917155] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 96.990166] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 96.997335] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 97.007692] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 97.014345] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 97.049303] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 97.061393] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 97.071895] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 97.078461] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 97.088423] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 97.096545] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 97.109557] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 97.116055] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 97.127510] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 97.134790] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 97.155777] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 97.172276] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 97.229862] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 97.237028] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 97.250043] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 97.260543] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 97.276178] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 97.282666] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 97.338273] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 97.347958] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 97.358845] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 97.366168] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 97.376276] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 97.382708] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 97.412160] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 97.420166] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 97.442415] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 97.449664] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 97.493317] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 97.499960] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 97.510310] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 97.521711] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 97.531623] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 97.539745] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 97.550047] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 97.557314] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 97.568552] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 97.576405] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 97.609800] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 97.624156] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 97.651836] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 97.659078] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 97.672024] FAULT_INJECTION: forcing a failure. [ 97.672024] name failslab, interval 1, probability 0, space 0, times 0 [ 97.692992] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 97.700466] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 97.710094] CPU: 0 PID: 7675 Comm: syz-executor3 Not tainted 4.19.0+ #73 [ 97.716941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.726295] Call Trace: [ 97.728886] dump_stack+0x244/0x39d [ 97.732522] ? dump_stack_print_info.cold.1+0x20/0x20 [ 97.737717] ? perf_event_update_sibling_time.part.31+0x90/0x90 [ 97.743786] should_fail.cold.4+0xa/0x17 [ 97.747860] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 97.752973] ? event_function+0x354/0x490 [ 97.757142] ? kasan_check_read+0x11/0x20 [ 97.761298] ? do_raw_spin_trylock+0x270/0x270 [ 97.765895] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.771449] ? __perf_remove_from_context+0x1ec/0x470 [ 97.776660] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.782228] ? trace_hardirqs_on+0xbd/0x310 [ 97.786568] ? smp_call_function_single+0x25a/0x660 [ 97.791600] ? fs_reclaim_acquire+0x20/0x20 [ 97.795948] ? lock_downgrade+0x900/0x900 [ 97.800107] ? perf_event_release_kernel+0x36c/0x10e0 [ 97.805306] ? perf_trace_sched_process_exec+0x860/0x860 [ 97.810761] ? ima_get_action+0x7e/0xa0 [ 97.814751] __should_failslab+0x124/0x180 [ 97.818991] should_failslab+0x9/0x14 [ 97.822797] __kmalloc+0x2e0/0x760 [ 97.826342] ? perf_duration_warn+0x40/0x40 [ 97.830664] ? perf_event_release_kernel+0x36c/0x10e0 [ 97.835874] ? bpf_prog_array_copy+0x345/0x420 [ 97.840476] bpf_prog_array_copy+0x345/0x420 [ 97.844897] perf_event_detach_bpf_prog+0x147/0x420 [ 97.849931] ? perf_event_attach_bpf_prog+0x400/0x400 [ 97.855127] ? lock_downgrade+0x900/0x900 [ 97.859276] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.864814] ? task_function_call+0x1e1/0x280 [ 97.869318] _free_event+0xf39/0x1660 [ 97.873127] ? ring_buffer_attach+0x840/0x840 [ 97.877623] ? event_function_call+0x343/0x600 [ 97.882228] ? lock_downgrade+0x900/0x900 [ 97.886383] ? trace_hardirqs_on+0xbd/0x310 [ 97.890707] ? kasan_check_read+0x11/0x20 [ 97.894860] ? perf_event_release_kernel+0x2e2/0x10e0 [ 97.900052] ? trace_hardirqs_off_caller+0x310/0x310 [ 97.905163] put_event+0x48/0x60 [ 97.908531] perf_event_release_kernel+0x8d0/0x10e0 [ 97.913548] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.919088] ? put_event+0x60/0x60 [ 97.922636] ? _parse_integer+0x180/0x180 [ 97.926791] ? mark_held_locks+0x130/0x130 [ 97.931032] ? perf_trace_sched_process_exec+0x860/0x860 [ 97.936486] ? usercopy_warn+0x110/0x110 [ 97.940555] ? get_pid_task+0xd6/0x1a0 [ 97.944449] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 97.949990] ? locks_remove_posix+0x47d/0x840 [ 97.954485] ? vfs_lock_file+0xe0/0xe0 [ 97.958373] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 97.963917] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.969461] ? fsnotify+0x4e5/0xf20 [ 97.973089] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 97.978636] ? locks_remove_file+0x3c6/0x5c0 [ 97.983049] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 97.988604] ? ima_file_free+0x132/0x650 [ 97.992695] ? fsnotify_first_mark+0x350/0x350 [ 97.997280] ? ima_file_check+0x130/0x130 [ 98.001434] ? fsnotify+0xf20/0xf20 [ 98.005077] ? perf_event_release_kernel+0x10e0/0x10e0 [ 98.010372] perf_release+0x37/0x50 [ 98.014011] __fput+0x385/0xa30 [ 98.017306] ? get_max_files+0x20/0x20 [ 98.021201] ? trace_hardirqs_on+0xbd/0x310 [ 98.025531] ? kasan_check_read+0x11/0x20 [ 98.029691] ? task_work_run+0x1af/0x2a0 [ 98.033759] ? trace_hardirqs_off_caller+0x310/0x310 [ 98.038865] ? filp_close+0x1cd/0x250 [ 98.042674] ____fput+0x15/0x20 [ 98.045959] task_work_run+0x1e8/0x2a0 [ 98.049871] ? task_work_cancel+0x240/0x240 [ 98.054201] ? copy_fd_bitmaps+0x210/0x210 [ 98.058441] exit_to_usermode_loop+0x318/0x380 [ 98.063028] ? __bpf_trace_sys_exit+0x30/0x30 [ 98.067531] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.073089] do_syscall_64+0x6be/0x820 [ 98.076985] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 98.082387] ? syscall_return_slowpath+0x5e0/0x5e0 [ 98.087323] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 98.092172] ? trace_hardirqs_on_caller+0x310/0x310 [ 98.097196] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 98.102212] ? prepare_exit_to_usermode+0x291/0x3b0 [ 98.107233] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 98.112087] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 98.117277] RIP: 0033:0x457569 [ 98.120473] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 98.139399] RSP: 002b:00007f208e04bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 98.147112] RAX: 0000000000000000 RBX: 00007f208e04bc90 RCX: 0000000000457569 [ 98.154391] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 98.161663] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 98.168936] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f208e04c6d4 [ 98.176206] R13: 00000000004efe32 R14: 00000000004cc6e0 R15: 0000000000000007 2018/10/31 18:21:21 executed programs: 120 [ 98.206838] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 98.213319] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 98.230531] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 98.252707] FAULT_INJECTION: forcing a failure. [ 98.252707] name failslab, interval 1, probability 0, space 0, times 0 [ 98.253872] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 98.280479] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 98.281073] CPU: 1 PID: 7694 Comm: syz-executor2 Not tainted 4.19.0+ #73 [ 98.287141] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 98.293793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.293799] Call Trace: [ 98.293822] dump_stack+0x244/0x39d [ 98.293838] ? dump_stack_print_info.cold.1+0x20/0x20 [ 98.293852] ? perf_event_update_sibling_time.part.31+0x90/0x90 [ 98.293872] should_fail.cold.4+0xa/0x17 [ 98.293892] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 98.304063] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 98.312734] ? event_function+0x354/0x490 [ 98.312758] ? kasan_check_read+0x11/0x20 [ 98.312773] ? do_raw_spin_trylock+0x270/0x270 [ 98.312795] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.315519] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 98.319000] ? __perf_remove_from_context+0x1ec/0x470 [ 98.319014] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.319038] ? trace_hardirqs_on+0xbd/0x310 [ 98.329186] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 98.330289] ? smp_call_function_single+0x25a/0x660 [ 98.330314] ? fs_reclaim_acquire+0x20/0x20 [ 98.337763] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 98.339469] ? lock_downgrade+0x900/0x900 [ 98.339491] ? perf_event_release_kernel+0x36c/0x10e0 [ 98.355120] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 98.358753] ? perf_trace_sched_process_exec+0x860/0x860 [ 98.358774] ? ima_get_action+0x7e/0xa0 [ 98.364410] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 98.373750] __should_failslab+0x124/0x180 [ 98.373769] should_failslab+0x9/0x14 [ 98.373783] __kmalloc+0x2e0/0x760 [ 98.373803] ? perf_duration_warn+0x40/0x40 [ 98.464352] ? perf_event_release_kernel+0x36c/0x10e0 [ 98.469551] ? bpf_prog_array_copy+0x345/0x420 [ 98.474141] bpf_prog_array_copy+0x345/0x420 [ 98.478562] perf_event_detach_bpf_prog+0x147/0x420 [ 98.483584] ? perf_event_attach_bpf_prog+0x400/0x400 [ 98.488783] ? lock_downgrade+0x900/0x900 [ 98.492937] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.498477] ? task_function_call+0x1e1/0x280 [ 98.502984] _free_event+0xf39/0x1660 [ 98.506792] ? ring_buffer_attach+0x840/0x840 [ 98.511289] ? event_function_call+0x343/0x600 [ 98.515878] ? lock_downgrade+0x900/0x900 [ 98.520029] ? trace_hardirqs_on+0xbd/0x310 [ 98.524354] ? kasan_check_read+0x11/0x20 [ 98.528507] ? perf_event_release_kernel+0x2e2/0x10e0 [ 98.533710] ? trace_hardirqs_off_caller+0x310/0x310 [ 98.538845] put_event+0x48/0x60 [ 98.542219] perf_event_release_kernel+0x8d0/0x10e0 [ 98.547244] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.552787] ? put_event+0x60/0x60 [ 98.556335] ? _parse_integer+0x180/0x180 [ 98.560489] ? mark_held_locks+0x130/0x130 [ 98.564725] ? perf_trace_sched_process_exec+0x860/0x860 [ 98.570174] ? usercopy_warn+0x110/0x110 [ 98.574246] ? get_pid_task+0xd6/0x1a0 [ 98.578166] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 98.583707] ? locks_remove_posix+0x47d/0x840 [ 98.588208] ? vfs_lock_file+0xe0/0xe0 [ 98.592100] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 98.597669] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.603227] ? fsnotify+0x4e5/0xf20 [ 98.606872] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 98.612611] ? locks_remove_file+0x3c6/0x5c0 [ 98.617069] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 98.622634] ? ima_file_free+0x132/0x650 [ 98.626976] ? fsnotify_first_mark+0x350/0x350 [ 98.631568] ? ima_file_check+0x130/0x130 [ 98.635716] ? fsnotify+0xf20/0xf20 [ 98.639352] ? perf_event_release_kernel+0x10e0/0x10e0 [ 98.644639] perf_release+0x37/0x50 [ 98.648275] __fput+0x385/0xa30 [ 98.651571] ? get_max_files+0x20/0x20 [ 98.655461] ? trace_hardirqs_on+0xbd/0x310 [ 98.659786] ? kasan_check_read+0x11/0x20 [ 98.663934] ? task_work_run+0x1af/0x2a0 [ 98.668012] ? trace_hardirqs_off_caller+0x310/0x310 [ 98.673136] ? filp_close+0x1cd/0x250 [ 98.677548] ____fput+0x15/0x20 [ 98.681038] task_work_run+0x1e8/0x2a0 [ 98.685172] ? task_work_cancel+0x240/0x240 [ 98.689705] ? copy_fd_bitmaps+0x210/0x210 [ 98.694401] exit_to_usermode_loop+0x318/0x380 [ 98.699002] ? __bpf_trace_sys_exit+0x30/0x30 [ 98.703513] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.709876] do_syscall_64+0x6be/0x820 [ 98.713948] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 98.719744] ? syscall_return_slowpath+0x5e0/0x5e0 [ 98.725099] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 98.730653] ? trace_hardirqs_on_caller+0x310/0x310 [ 98.735791] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 98.740816] ? prepare_exit_to_usermode+0x291/0x3b0 [ 98.746034] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 98.751550] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 98.756921] RIP: 0033:0x457569 [ 98.760115] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 98.779026] RSP: 002b:00007f943721bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 98.786744] RAX: 0000000000000000 RBX: 00007f943721bc90 RCX: 0000000000457569 [ 98.794017] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 98.801291] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 98.808563] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f943721c6d4 [ 98.815837] R13: 00000000004efe32 R14: 00000000004cc6e0 R15: 0000000000000007 [ 98.865472] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 98.871949] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 98.902732] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 98.910352] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 98.920463] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 98.927049] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 98.938198] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 98.945366] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 98.982463] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 98.989145] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 98.999124] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 99.006760] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 99.017587] FAULT_INJECTION: forcing a failure. [ 99.017587] name failslab, interval 1, probability 0, space 0, times 0 [ 99.037111] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 99.044143] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 99.054172] CPU: 1 PID: 7737 Comm: syz-executor0 Not tainted 4.19.0+ #73 [ 99.061033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 99.070391] Call Trace: [ 99.072989] dump_stack+0x244/0x39d [ 99.076624] ? dump_stack_print_info.cold.1+0x20/0x20 [ 99.081827] ? perf_event_update_sibling_time.part.31+0x90/0x90 [ 99.087901] should_fail.cold.4+0xa/0x17 [ 99.091968] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 99.097068] ? event_function+0x354/0x490 [ 99.101227] ? kasan_check_read+0x11/0x20 [ 99.105383] ? do_raw_spin_trylock+0x270/0x270 [ 99.109978] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.115521] ? __perf_remove_from_context+0x1ec/0x470 [ 99.120714] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.126259] ? trace_hardirqs_on+0xbd/0x310 [ 99.130579] ? smp_call_function_single+0x25a/0x660 [ 99.135602] ? fs_reclaim_acquire+0x20/0x20 [ 99.139935] ? lock_downgrade+0x900/0x900 [ 99.144083] ? perf_event_release_kernel+0x36c/0x10e0 [ 99.149279] ? perf_trace_sched_process_exec+0x860/0x860 [ 99.154729] ? ima_get_action+0x7e/0xa0 [ 99.158710] __should_failslab+0x124/0x180 [ 99.162952] should_failslab+0x9/0x14 [ 99.166758] __kmalloc+0x2e0/0x760 [ 99.170310] ? perf_duration_warn+0x40/0x40 [ 99.174664] ? perf_event_release_kernel+0x36c/0x10e0 [ 99.179871] ? bpf_prog_array_copy+0x345/0x420 [ 99.184472] bpf_prog_array_copy+0x345/0x420 [ 99.188905] perf_event_detach_bpf_prog+0x147/0x420 [ 99.193945] ? perf_event_attach_bpf_prog+0x400/0x400 [ 99.199155] ? lock_downgrade+0x900/0x900 [ 99.203322] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.208867] ? task_function_call+0x1e1/0x280 [ 99.213376] _free_event+0xf39/0x1660 [ 99.217189] ? ring_buffer_attach+0x840/0x840 [ 99.221682] ? event_function_call+0x343/0x600 [ 99.226277] ? lock_downgrade+0x900/0x900 [ 99.230446] ? trace_hardirqs_on+0xbd/0x310 [ 99.234775] ? kasan_check_read+0x11/0x20 [ 99.238927] ? perf_event_release_kernel+0x2e2/0x10e0 [ 99.244122] ? trace_hardirqs_off_caller+0x310/0x310 [ 99.249239] put_event+0x48/0x60 [ 99.252614] perf_event_release_kernel+0x8d0/0x10e0 [ 99.257658] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.263215] ? put_event+0x60/0x60 [ 99.266757] ? _parse_integer+0x180/0x180 [ 99.270908] ? mark_held_locks+0x130/0x130 [ 99.275144] ? perf_trace_sched_process_exec+0x860/0x860 [ 99.280597] ? usercopy_warn+0x110/0x110 [ 99.284676] ? get_pid_task+0xd6/0x1a0 [ 99.288568] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 99.294193] ? locks_remove_posix+0x47d/0x840 [ 99.298703] ? vfs_lock_file+0xe0/0xe0 [ 99.302594] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 99.308464] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.314006] ? fsnotify+0x4e5/0xf20 [ 99.317648] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 99.323184] ? locks_remove_file+0x3c6/0x5c0 [ 99.327599] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 99.333147] ? ima_file_free+0x132/0x650 [ 99.337208] ? fsnotify_first_mark+0x350/0x350 [ 99.341788] ? ima_file_check+0x130/0x130 [ 99.345936] ? fsnotify+0xf20/0xf20 [ 99.349574] ? perf_event_release_kernel+0x10e0/0x10e0 [ 99.355021] perf_release+0x37/0x50 [ 99.358658] __fput+0x385/0xa30 [ 99.361953] ? get_max_files+0x20/0x20 [ 99.365854] ? trace_hardirqs_on+0xbd/0x310 [ 99.370173] ? kasan_check_read+0x11/0x20 [ 99.374326] ? task_work_run+0x1af/0x2a0 [ 99.378393] ? trace_hardirqs_off_caller+0x310/0x310 [ 99.383499] ? filp_close+0x1cd/0x250 [ 99.387307] ____fput+0x15/0x20 [ 99.390589] task_work_run+0x1e8/0x2a0 [ 99.394484] ? task_work_cancel+0x240/0x240 [ 99.398812] ? copy_fd_bitmaps+0x210/0x210 [ 99.403053] exit_to_usermode_loop+0x318/0x380 [ 99.407646] ? __bpf_trace_sys_exit+0x30/0x30 [ 99.412162] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.417711] do_syscall_64+0x6be/0x820 [ 99.421601] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 99.426976] ? syscall_return_slowpath+0x5e0/0x5e0 [ 99.431901] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 99.436749] ? trace_hardirqs_on_caller+0x310/0x310 [ 99.441765] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 99.446785] ? prepare_exit_to_usermode+0x291/0x3b0 [ 99.451808] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 99.456668] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 99.462376] RIP: 0033:0x457569 [ 99.465575] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 99.484816] RSP: 002b:00007f2d42ca0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 99.492521] RAX: 0000000000000000 RBX: 00007f2d42ca0c90 RCX: 0000000000457569 [ 99.499787] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 99.507061] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 99.514330] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d42ca16d4 [ 99.521601] R13: 00000000004efe32 R14: 00000000004cc6e0 R15: 0000000000000007 [ 99.540238] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 99.561809] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 99.572767] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 99.581292] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 99.599734] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 99.616326] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 99.627293] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 99.634666] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 99.650130] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 99.661031] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 99.672406] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 99.679238] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 99.700599] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 99.711834] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 99.722951] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 99.730521] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 99.740696] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 99.752687] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 99.773949] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 99.780623] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 99.790734] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 99.798050] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 99.809285] FAULT_INJECTION: forcing a failure. [ 99.809285] name failslab, interval 1, probability 0, space 0, times 0 [ 99.821155] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 99.827941] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 99.833677] CPU: 1 PID: 7783 Comm: syz-executor1 Not tainted 4.19.0+ #73 [ 99.838196] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 99.844250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 99.844256] Call Trace: [ 99.844280] dump_stack+0x244/0x39d [ 99.844296] ? dump_stack_print_info.cold.1+0x20/0x20 [ 99.844311] ? perf_event_update_sibling_time.part.31+0x90/0x90 [ 99.844333] should_fail.cold.4+0xa/0x17 [ 99.844349] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 99.844360] ? event_function+0x354/0x490 [ 99.844382] ? kasan_check_read+0x11/0x20 [ 99.851118] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 99.860141] ? do_raw_spin_trylock+0x270/0x270 [ 99.860159] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.860174] ? __perf_remove_from_context+0x1ec/0x470 [ 99.860188] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.860205] ? trace_hardirqs_on+0xbd/0x310 [ 99.860219] ? smp_call_function_single+0x25a/0x660 [ 99.860238] ? fs_reclaim_acquire+0x20/0x20 [ 99.869709] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 99.871642] ? lock_downgrade+0x900/0x900 [ 99.871660] ? perf_event_release_kernel+0x36c/0x10e0 [ 99.871687] ? perf_trace_sched_process_exec+0x860/0x860 [ 99.877912] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 99.881800] ? ima_get_action+0x7e/0xa0 [ 99.881823] __should_failslab+0x124/0x180 [ 99.881856] should_failslab+0x9/0x14 [ 99.887827] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 99.891087] __kmalloc+0x2e0/0x760 [ 99.891104] ? perf_duration_warn+0x40/0x40 [ 99.891119] ? perf_event_release_kernel+0x36c/0x10e0 [ 99.891136] ? bpf_prog_array_copy+0x345/0x420 [ 99.895527] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 99.904725] bpf_prog_array_copy+0x345/0x420 [ 99.904749] perf_event_detach_bpf_prog+0x147/0x420 [ 99.904767] ? perf_event_attach_bpf_prog+0x400/0x400 [ 99.904782] ? lock_downgrade+0x900/0x900 [ 99.904799] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.904817] ? task_function_call+0x1e1/0x280 [ 99.910135] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 99.914937] _free_event+0xf39/0x1660 [ 99.914958] ? ring_buffer_attach+0x840/0x840 [ 99.914971] ? event_function_call+0x343/0x600 [ 99.914993] ? lock_downgrade+0x900/0x900 [ 99.915012] ? trace_hardirqs_on+0xbd/0x310 [ 99.915033] ? kasan_check_read+0x11/0x20 [ 99.920513] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 99.925784] ? perf_event_release_kernel+0x2e2/0x10e0 [ 99.925801] ? trace_hardirqs_off_caller+0x310/0x310 [ 99.925822] put_event+0x48/0x60 [ 99.925837] perf_event_release_kernel+0x8d0/0x10e0 [ 99.925852] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.925870] ? put_event+0x60/0x60 [ 99.925891] ? _parse_integer+0x180/0x180 [ 99.925911] ? mark_held_locks+0x130/0x130 [ 99.930998] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 99.935245] ? perf_trace_sched_process_exec+0x860/0x860 [ 99.935261] ? usercopy_warn+0x110/0x110 [ 99.935283] ? get_pid_task+0xd6/0x1a0 [ 99.935300] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 99.935314] ? locks_remove_posix+0x47d/0x840 [ 99.935332] ? vfs_lock_file+0xe0/0xe0 [ 99.939896] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 99.946058] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 99.946075] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.946090] ? fsnotify+0x4e5/0xf20 [ 99.946105] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 99.946119] ? locks_remove_file+0x3c6/0x5c0 [ 99.946134] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 99.946147] ? ima_file_free+0x132/0x650 [ 99.946165] ? fsnotify_first_mark+0x350/0x350 [ 99.951127] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 99.955500] ? ima_file_check+0x130/0x130 [ 99.955514] ? fsnotify+0xf20/0xf20 [ 99.955539] ? perf_event_release_kernel+0x10e0/0x10e0 [ 99.955552] perf_release+0x37/0x50 [ 99.955568] __fput+0x385/0xa30 [ 99.955587] ? get_max_files+0x20/0x20 [ 99.955606] ? trace_hardirqs_on+0xbd/0x310 [ 99.961399] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 99.970503] ? kasan_check_read+0x11/0x20 [ 99.970520] ? task_work_run+0x1af/0x2a0 [ 99.970537] ? trace_hardirqs_off_caller+0x310/0x310 [ 99.970551] ? filp_close+0x1cd/0x250 [ 99.970569] ____fput+0x15/0x20 [ 99.970582] task_work_run+0x1e8/0x2a0 [ 99.970598] ? task_work_cancel+0x240/0x240 [ 99.970622] ? copy_fd_bitmaps+0x210/0x210 [ 99.976346] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 99.978847] exit_to_usermode_loop+0x318/0x380 [ 99.978864] ? __bpf_trace_sys_exit+0x30/0x30 [ 99.978885] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.982794] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 99.989100] do_syscall_64+0x6be/0x820 [ 99.989123] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 99.989139] ? syscall_return_slowpath+0x5e0/0x5e0 [ 99.989153] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 99.989176] ? trace_hardirqs_on_caller+0x310/0x310 [ 99.989202] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 99.993428] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 99.997041] ? prepare_exit_to_usermode+0x291/0x3b0 [ 99.997060] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 99.997083] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 99.997094] RIP: 0033:0x457569 [ 99.997108] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 99.997115] RSP: 002b:00007f11fb8f1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 99.997126] RAX: 0000000000000000 RBX: 00007f11fb8f1c90 RCX: 0000000000457569 [ 99.997132] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 99.997138] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 99.997146] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f11fb8f26d4 [ 99.997159] R13: 00000000004efe32 R14: 00000000004cc6e0 R15: 0000000000000007 [ 100.002615] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 100.439162] kobject: 'loop0' (000000002753bcc3): kobject_uevent_env [ 100.445670] kobject: 'loop0' (000000002753bcc3): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 100.456417] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 100.462909] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 100.472986] kobject: 'loop5' (00000000ca5f18ac): kobject_uevent_env [ 100.486354] kobject: 'loop5' (00000000ca5f18ac): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 100.500338] kobject: 'loop4' (0000000047f33a84): kobject_uevent_env [ 100.508179] kobject: 'loop4' (0000000047f33a84): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 100.518682] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 100.527479] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 100.541436] kobject: 'loop3' (000000007775120b): kobject_uevent_env [ 100.548495] kobject: 'loop3' (000000007775120b): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 100.559181] kobject: 'loop2' (000000003ed2dd85): kobject_uevent_env [ 100.566640] kobject: 'loop2' (000000003ed2dd85): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 100.752035] kobject: 'loop1' (00000000ed884b05): kobject_uevent_env [ 100.786927] kobject: 'loop1' (00000000ed884b05): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 100.801649] FAULT_INJECTION: forcing a failure. [ 100.801649] name failslab, interval 1, probability 0, space 0, times 0 [ 100.857691] CPU: 1 PID: 7854 Comm: syz-executor1 Not tainted 4.19.0+ #73 [ 100.864579] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.873940] Call Trace: [ 100.876541] dump_stack+0x244/0x39d [ 100.880180] ? dump_stack_print_info.cold.1+0x20/0x20 [ 100.885387] ? perf_event_update_sibling_time.part.31+0x90/0x90 [ 100.891471] should_fail.cold.4+0xa/0x17 [ 100.895547] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 100.900671] ? event_function+0x354/0x490 [ 100.904833] ? kasan_check_read+0x11/0x20 [ 100.908997] ? do_raw_spin_trylock+0x270/0x270 [ 100.913594] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.919159] ? __perf_remove_from_context+0x1ec/0x470 [ 100.924366] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.929922] ? trace_hardirqs_on+0xbd/0x310 [ 100.934254] ? smp_call_function_single+0x25a/0x660 [ 100.939283] ? fs_reclaim_acquire+0x20/0x20 [ 100.943622] ? lock_downgrade+0x900/0x900 [ 100.947799] ? perf_event_release_kernel+0x36c/0x10e0 [ 100.952993] ? perf_trace_sched_process_exec+0x860/0x860 [ 100.958434] ? ima_get_action+0x7e/0xa0 [ 100.962398] __should_failslab+0x124/0x180 [ 100.966646] should_failslab+0x9/0x14 [ 100.970448] __kmalloc+0x2e0/0x760 [ 100.973990] ? perf_duration_warn+0x40/0x40 [ 100.978309] ? perf_event_release_kernel+0x36c/0x10e0 [ 100.983508] ? bpf_prog_array_copy+0x345/0x420 [ 100.988105] bpf_prog_array_copy+0x345/0x420 [ 100.992523] perf_event_detach_bpf_prog+0x147/0x420 [ 100.997545] ? perf_event_attach_bpf_prog+0x400/0x400 [ 101.002733] ? lock_downgrade+0x900/0x900 [ 101.006881] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 101.012410] ? task_function_call+0x1e1/0x280 [ 101.016913] _free_event+0xf39/0x1660 [ 101.020704] ? ring_buffer_attach+0x840/0x840 [ 101.025187] ? event_function_call+0x343/0x600 [ 101.029760] ? lock_downgrade+0x900/0x900 [ 101.033900] ? trace_hardirqs_on+0xbd/0x310 [ 101.038226] ? kasan_check_read+0x11/0x20 [ 101.042371] ? perf_event_release_kernel+0x2e2/0x10e0 [ 101.047745] ? trace_hardirqs_off_caller+0x310/0x310 [ 101.052846] put_event+0x48/0x60 [ 101.056202] perf_event_release_kernel+0x8d0/0x10e0 [ 101.061207] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 101.066738] ? put_event+0x60/0x60 [ 101.070275] ? _parse_integer+0x180/0x180 [ 101.074436] ? mark_held_locks+0x130/0x130 [ 101.078661] ? perf_trace_sched_process_exec+0x860/0x860 [ 101.084098] ? usercopy_warn+0x110/0x110 [ 101.088150] ? get_pid_task+0xd6/0x1a0 [ 101.092038] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 101.097559] ? locks_remove_posix+0x47d/0x840 [ 101.102041] ? vfs_lock_file+0xe0/0xe0