syzkaller login: [ 31.189061] kauditd_printk_skb: 9 callbacks suppressed [ 31.189066] audit: type=1400 audit(1574817384.037:35): avc: denied { map } for pid=6809 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 37.547948] audit: type=1400 audit(1574817390.397:36): avc: denied { map } for pid=6820 comm="syz-fuzzer" path="/root/syz-fuzzer" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 38.200203] IPVS: ftp: loaded support on port[0] = 21 [ 38.582294] can: request_module (can-proto-0) failed. [ 39.730709] can: request_module (can-proto-0) failed. [ 39.739416] can: request_module (can-proto-0) failed. [ 39.896287] audit: type=1400 audit(1574817392.747:37): avc: denied { create } for pid=6820 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1 [ 39.920357] audit: type=1400 audit(1574817392.747:38): avc: denied { create } for pid=6820 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 39.944046] audit: type=1400 audit(1574817392.747:39): avc: denied { create } for pid=6820 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 Warning: Permanently added '10.128.1.56' (ECDSA) to the list of known hosts. 2019/11/27 01:16:39 parsed 1 programs 2019/11/27 01:16:39 executed programs: 0 [ 47.175788] IPVS: ftp: loaded support on port[0] = 21 [ 47.196223] IPVS: ftp: loaded support on port[0] = 21 [ 47.202207] IPVS: ftp: loaded support on port[0] = 21 [ 47.241589] IPVS: ftp: loaded support on port[0] = 21 [ 47.282674] IPVS: ftp: loaded support on port[0] = 21 [ 47.291872] IPVS: ftp: loaded support on port[0] = 21 [ 47.381834] chnl_net:caif_netlink_parms(): no params data found [ 47.438201] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.445099] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.451903] device bridge_slave_0 entered promiscuous mode [ 47.500326] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.507121] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.514595] device bridge_slave_1 entered promiscuous mode [ 47.551918] chnl_net:caif_netlink_parms(): no params data found [ 47.575963] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 47.607179] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 47.619736] chnl_net:caif_netlink_parms(): no params data found [ 47.632097] chnl_net:caif_netlink_parms(): no params data found [ 47.654890] chnl_net:caif_netlink_parms(): no params data found [ 47.680340] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 47.689059] team0: Port device team_slave_0 added [ 47.720573] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.727312] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.734365] device bridge_slave_0 entered promiscuous mode [ 47.744605] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 47.751741] team0: Port device team_slave_1 added [ 47.762340] chnl_net:caif_netlink_parms(): no params data found [ 47.777202] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.783564] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.794944] device bridge_slave_1 entered promiscuous mode [ 47.804993] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 47.812083] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.819253] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.826223] device bridge_slave_0 entered promiscuous mode [ 47.850500] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.857040] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.864519] device bridge_slave_0 entered promiscuous mode [ 47.871054] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 47.878255] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.886266] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.893103] device bridge_slave_1 entered promiscuous mode [ 47.913214] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 47.929201] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.936328] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.943224] device bridge_slave_1 entered promiscuous mode [ 47.962074] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.968854] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.976626] device bridge_slave_0 entered promiscuous mode [ 47.983620] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 47.992643] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.009226] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.016989] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.023353] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.030421] device bridge_slave_1 entered promiscuous mode [ 48.048062] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.096822] device hsr_slave_0 entered promiscuous mode [ 48.154316] device hsr_slave_1 entered promiscuous mode [ 48.205276] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.213137] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 48.229272] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 48.236522] team0: Port device team_slave_0 added [ 48.241525] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.250356] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.257430] device bridge_slave_0 entered promiscuous mode [ 48.267450] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.273798] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.280831] device bridge_slave_1 entered promiscuous mode [ 48.290114] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 48.297997] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.299543] audit: type=1400 audit(1574817401.147:40): avc: denied { write } for pid=6916 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 48.329756] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.338475] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 48.347310] team0: Port device team_slave_1 added [ 48.360662] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 48.362049] audit: type=1400 audit(1574817401.197:41): avc: denied { read } for pid=6916 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 48.368388] team0: Port device team_slave_0 added [ 48.403318] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 48.411246] team0: Port device team_slave_0 added [ 48.420169] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 48.429801] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 48.438006] team0: Port device team_slave_1 added [ 48.446573] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 48.453706] team0: Port device team_slave_1 added [ 48.462438] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.470440] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 48.484810] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 48.493296] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 48.503034] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 48.510346] team0: Port device team_slave_0 added [ 48.516184] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 48.523253] team0: Port device team_slave_1 added [ 48.528536] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 48.538624] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.556459] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 48.563599] team0: Port device team_slave_0 added [ 48.573337] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 48.581017] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 48.588532] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 48.616681] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 48.623813] team0: Port device team_slave_1 added [ 48.685283] device hsr_slave_0 entered promiscuous mode [ 48.744196] device hsr_slave_1 entered promiscuous mode [ 48.825383] device hsr_slave_0 entered promiscuous mode [ 48.884240] device hsr_slave_1 entered promiscuous mode [ 48.934889] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 48.976434] device hsr_slave_0 entered promiscuous mode [ 49.044114] device hsr_slave_1 entered promiscuous mode [ 49.087727] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 49.095562] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 49.102722] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 49.109773] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 49.118005] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 49.166459] device hsr_slave_0 entered promiscuous mode [ 49.204195] device hsr_slave_1 entered promiscuous mode [ 49.244406] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 49.251279] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 49.258266] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 49.265868] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 49.281893] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 49.345454] device hsr_slave_0 entered promiscuous mode [ 49.414381] device hsr_slave_1 entered promiscuous mode [ 49.471767] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 49.480275] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 49.492391] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 49.501005] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 49.512731] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 49.521404] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 49.589324] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 49.618572] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.627450] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.648080] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.666328] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.678245] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 49.687383] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.697800] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 49.708104] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 49.715885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.722688] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 49.729696] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.740283] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.749359] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.756769] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.764637] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.775604] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 49.781687] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.792806] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 49.799323] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.807004] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 49.819413] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.826099] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 49.833023] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.841894] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 49.849853] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 49.859100] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 49.865619] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.874729] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 49.882441] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 49.890940] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.897133] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.904991] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.912506] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.919445] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.926382] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 49.933180] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.941088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.948830] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.956676] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.963002] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.970706] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 49.982879] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 49.990418] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 49.997535] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 50.006172] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.014157] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.021648] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.028012] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.036200] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.043029] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.050419] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 50.059136] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.067831] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.076725] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.087154] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.093227] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.101274] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.108931] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.118516] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.126111] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.132448] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.139311] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.147338] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.155120] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.161458] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.168297] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.176307] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.183759] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.190129] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.196999] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.204974] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.212458] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.218832] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.225793] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 50.234863] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.242845] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.255411] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.263521] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.274253] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.282233] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.292507] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.300572] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.308741] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.315132] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.321901] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.329676] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.337321] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.343650] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.351540] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 50.360513] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 50.372130] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.381421] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.389060] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.396849] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 50.403682] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.413489] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.421520] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.429649] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.437452] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.443823] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.450646] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.459106] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 50.468282] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 50.476443] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.489944] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.497106] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.505306] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.512720] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.521873] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.529761] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.538264] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.546660] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.555024] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 50.563156] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 50.572594] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 50.581588] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.589575] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 50.599357] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.607339] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.615009] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.622563] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.630067] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 50.637920] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.645506] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.652258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.659120] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.666980] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.673951] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.682323] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 50.690124] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 50.699532] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 50.708767] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 50.718321] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.726268] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 50.733823] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.741563] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 50.749708] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.757472] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 50.765032] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.773742] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 50.783910] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.789976] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.798651] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 50.807739] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 50.816353] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 50.823166] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 50.831098] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.838884] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 50.846420] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.853688] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 50.861170] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.868542] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.876497] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.884027] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.892927] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 50.901579] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 50.911327] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.921786] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 50.928449] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 50.936050] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 50.943473] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.951077] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.958999] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.966542] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.974404] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.982103] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.988484] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.995672] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.002551] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 51.011040] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.020784] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 51.029148] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.039023] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 51.050301] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 51.057795] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.066080] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.073505] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.081288] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.088758] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.096494] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.103934] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.111377] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.118800] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.126452] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.134945] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 51.142692] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 51.148986] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.158375] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 51.166880] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 51.172899] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.181597] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 51.190901] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 51.197845] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.209173] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.216791] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.223151] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.230173] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.237694] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.245110] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.252525] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.261689] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 51.275118] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 51.286242] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 51.292292] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.302172] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 51.312697] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.322519] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 51.330580] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.337480] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.352848] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.364057] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 51.371279] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 51.387845] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 51.399282] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 51.406548] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.417694] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 51.426139] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 51.434735] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 51.442230] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 51.449593] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.457858] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.465782] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.472469] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.479434] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.486197] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.492845] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.499744] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.506837] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.516320] audit: type=1400 audit(1574817404.367:42): avc: denied { associate } for pid=6918 comm="syz-executor.2" name="syz2" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 51.517054] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.552291] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 51.562946] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.576767] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.586953] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.595053] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.604530] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.615741] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 51.634549] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 51.642916] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 51.650997] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.658497] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.668330] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.677129] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.687153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.695225] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.710584] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.719111] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 51.726497] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.735895] FAULT_INJECTION: forcing a failure. [ 51.735895] name failslab, interval 1, probability 0, space 0, times 1 [ 51.747793] CPU: 0 PID: 6938 Comm: syz-executor.2 Not tainted 4.19.84-syzkaller #0 [ 51.755504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.764850] Call Trace: [ 51.767422] dump_stack+0x123/0x177 [ 51.771035] should_fail.cold.4+0x5/0x13 [ 51.775088] ? fault_create_debugfs_attr+0x1a0/0x1a0 [ 51.780181] ? lock_downgrade+0x860/0x860 [ 51.784411] __should_failslab+0xba/0xf0 [ 51.788471] should_failslab+0x9/0x14 [ 51.792272] kmem_cache_alloc_trace+0x2d4/0x740 [ 51.796942] slip_open+0x812/0x10b4 [ 51.800576] ? sl_change_mtu+0x690/0x690 [ 51.804618] ? lock_downgrade+0x860/0x860 [ 51.808745] tty_ldisc_open.isra.3+0x65/0xa0 [ 51.813130] ? up_write+0x1c/0x150 [ 51.816659] tty_set_ldisc+0x252/0x5b0 [ 51.820541] tty_ioctl+0x31e/0x1290 [ 51.824153] ? tty_vhangup+0x20/0x20 [ 51.827905] ? avc_ss_reset+0x130/0x130 [ 51.831859] ? mark_held_locks+0x130/0x130 [ 51.836097] ? kasan_check_write+0x14/0x20 [ 51.840340] ? proc_fail_nth_write+0x13a/0x180 [ 51.844904] ? proc_cwd_link+0x1b0/0x1b0 [ 51.848945] ? __lock_is_held+0xb5/0x140 [ 51.852992] do_vfs_ioctl+0x196/0x10c0 [ 51.856870] ? ioctl_preallocate+0x1c0/0x1c0 [ 51.861279] ? selinux_file_mprotect+0x5f0/0x5f0 [ 51.866022] ? __schedule+0x5f3/0x1c10 [ 51.869892] ? ksys_dup3+0x2e0/0x2e0 [ 51.873587] ? kasan_check_write+0x14/0x20 [ 51.877833] ? fput+0x18/0x120 [ 51.881031] ? security_file_ioctl+0x4a/0x90 [ 51.885419] ? __fget_light+0x174/0x1e0 [ 51.889374] ksys_ioctl+0x62/0x90 [ 51.892807] ? lockdep_hardirqs_on+0x421/0x5c0 [ 51.897378] __x64_sys_ioctl+0x6e/0xb0 [ 51.901272] do_syscall_64+0xd0/0x4e0 [ 51.905064] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.910254] RIP: 0033:0x45a639 [ 51.913424] Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 51.932354] RSP: 002b:00007fadf16d7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.940069] RAX: ffffffffffffffda RBX: 00007fadf16d7c90 RCX: 000000000045a639 [ 51.947326] RDX: 00000000200003c0 RSI: 0000000000005423 RDI: 0000000000000003 [ 51.954594] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 51.961853] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fadf16d86d4 [ 51.969107] R13: 00000000004c52b4 R14: 00000000004da170 R15: 0000000000000004 [ 52.006126] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 52.013620] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 52.058448] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.066890] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.077811] ================================================================== [ 52.085349] BUG: KASAN: use-after-free in slip_open+0xd87/0x10b4 [ 52.091489] Read of size 8 at addr ffff88808675f408 by task syz-executor.2/6943 [ 52.098935] [ 52.100561] CPU: 1 PID: 6943 Comm: syz-executor.2 Not tainted 4.19.84-syzkaller #0 [ 52.108262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.117608] Call Trace: [ 52.117637] dump_stack+0x123/0x177 [ 52.117649] print_address_description.cold.8+0x9/0x1ff [ 52.117656] kasan_report.cold.9+0x242/0x309 [ 52.117662] ? slip_open+0xd87/0x10b4 [ 52.117669] __asan_report_load8_noabort+0x14/0x20 [ 52.117673] slip_open+0xd87/0x10b4 [ 52.117681] ? sl_change_mtu+0x690/0x690 [ 52.117686] ? lock_downgrade+0x860/0x860 [ 52.117697] tty_ldisc_open.isra.3+0x65/0xa0 [ 52.117700] ? up_write+0x1c/0x150 [ 52.117705] tty_set_ldisc+0x252/0x5b0 [ 52.117711] tty_ioctl+0x31e/0x1290 [ 52.117717] ? tty_vhangup+0x20/0x20 [ 52.123995] ? avc_ss_reset+0x130/0x130 [ 52.124006] ? mark_held_locks+0x130/0x130 [ 52.124012] ? kasan_check_write+0x14/0x20 [ 52.124019] ? proc_fail_nth_write+0x13a/0x180 [ 52.124024] ? proc_cwd_link+0x1b0/0x1b0 [ 52.124028] ? __lock_is_held+0xb5/0x140 [ 52.124045] do_vfs_ioctl+0x196/0x10c0 [ 52.124053] ? ioctl_preallocate+0x1c0/0x1c0 [ 52.124061] ? selinux_file_mprotect+0x5f0/0x5f0 [ 52.124070] ? __schedule+0x5f3/0x1c10 [ 52.124080] ? ksys_dup3+0x2e0/0x2e0 [ 52.124085] ? kasan_check_write+0x14/0x20 [ 52.124091] ? fput+0x18/0x120 [ 52.124100] ? security_file_ioctl+0x4a/0x90 [ 52.124103] ? __fget_light+0x174/0x1e0 [ 52.124110] ksys_ioctl+0x62/0x90 [ 52.124115] ? lockdep_hardirqs_on+0x421/0x5c0 [ 52.124121] __x64_sys_ioctl+0x6e/0xb0 [ 52.124129] do_syscall_64+0xd0/0x4e0 [ 52.124137] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.263118] RIP: 0033:0x45a639 [ 52.266288] Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.285171] RSP: 002b:00007fadf16d7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.292874] RAX: ffffffffffffffda RBX: 00007fadf16d7c90 RCX: 000000000045a639 [ 52.300124] RDX: 00000000200003c0 RSI: 0000000000005423 RDI: 0000000000000003 [ 52.307380] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 52.314627] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fadf16d86d4 [ 52.321889] R13: 00000000004c52b4 R14: 00000000004da170 R15: 0000000000000004 [ 52.329166] [ 52.330777] Allocated by task 6938: [ 52.334391] save_stack+0x43/0xd0 [ 52.337822] kasan_kmalloc+0xc7/0xe0 [ 52.341507] __kmalloc_node+0x50/0x70 [ 52.345308] kvmalloc_node+0x68/0x70 [ 52.349004] alloc_netdev_mqs+0x5d/0xc00 [ 52.353055] slip_open+0x300/0x10b4 [ 52.356794] tty_ldisc_open.isra.3+0x65/0xa0 [ 52.361183] tty_set_ldisc+0x252/0x5b0 [ 52.365053] tty_ioctl+0x31e/0x1290 [ 52.368664] do_vfs_ioctl+0x196/0x10c0 [ 52.372537] ksys_ioctl+0x62/0x90 [ 52.375968] __x64_sys_ioctl+0x6e/0xb0 [ 52.379849] do_syscall_64+0xd0/0x4e0 [ 52.383633] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.388802] [ 52.390410] Freed by task 6938: [ 52.393711] save_stack+0x43/0xd0 [ 52.397144] __kasan_slab_free+0x102/0x150 [ 52.401406] kasan_slab_free+0xe/0x10 [ 52.405417] kfree+0xcf/0x220 [ 52.408520] kvfree+0x2c/0x30 [ 52.411650] free_netdev+0x312/0x3d0 [ 52.415353] slip_open+0xb61/0x10b4 [ 52.418985] tty_ldisc_open.isra.3+0x65/0xa0 [ 52.423370] tty_set_ldisc+0x252/0x5b0 [ 52.427237] tty_ioctl+0x31e/0x1290 [ 52.430846] do_vfs_ioctl+0x196/0x10c0 [ 52.434717] ksys_ioctl+0x62/0x90 [ 52.438159] __x64_sys_ioctl+0x6e/0xb0 [ 52.442037] do_syscall_64+0xd0/0x4e0 [ 52.445835] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.450997] [ 52.452599] The buggy address belongs to the object at ffff88808675e940 [ 52.452599] which belongs to the cache kmalloc-4096 of size 4096 [ 52.465402] The buggy address is located 2760 bytes inside of [ 52.465402] 4096-byte region [ffff88808675e940, ffff88808675f940) [ 52.477436] The buggy address belongs to the page: [ 52.482342] page:ffffea000219d780 count:1 mapcount:0 mapping:ffff88812c35edc0 index:0x0 compound_mapcount: 0 [ 52.492284] flags: 0x1fffc0000008100(slab|head) [ 52.496929] raw: 01fffc0000008100 ffffea0002201488 ffffea000219cb08 ffff88812c35edc0 [ 52.504833] raw: 0000000000000000 ffff88808675e940 0000000100000001 0000000000000000 [ 52.513411] page dumped because: kasan: bad access detected [ 52.519100] [ 52.520707] Memory state around the buggy address: [ 52.525617] ffff88808675f300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 52.532967] ffff88808675f380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 52.540311] >ffff88808675f400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 52.547785] ^ [ 52.551395] ffff88808675f480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 52.559106] ffff88808675f500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 52.566447] ================================================================== [ 52.573784] Disabling lock debugging due to kernel taint [ 52.584616] Kernel panic - not syncing: panic_on_warn set ... [ 52.584616] [ 52.592015] CPU: 1 PID: 6943 Comm: syz-executor.2 Tainted: G B 4.19.84-syzkaller #0 [ 52.601108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.610534] Call Trace: [ 52.613104] dump_stack+0x123/0x177 [ 52.616721] panic+0x1cd/0x375 [ 52.619907] ? __warn_printk+0xd6/0xd6 [ 52.623781] ? ___preempt_schedule+0x16/0x18 [ 52.628172] kasan_end_report+0x47/0x4f [ 52.632134] kasan_report.cold.9+0x76/0x309 [ 52.636442] ? slip_open+0xd87/0x10b4 [ 52.640222] __asan_report_load8_noabort+0x14/0x20 [ 52.645129] slip_open+0xd87/0x10b4 [ 52.648734] ? sl_change_mtu+0x690/0x690 [ 52.652775] ? lock_downgrade+0x860/0x860 [ 52.657086] tty_ldisc_open.isra.3+0x65/0xa0 [ 52.661481] ? up_write+0x1c/0x150 [ 52.664999] tty_set_ldisc+0x252/0x5b0 [ 52.668862] tty_ioctl+0x31e/0x1290 [ 52.672484] ? tty_vhangup+0x20/0x20 [ 52.676185] ? avc_ss_reset+0x130/0x130 [ 52.680149] ? mark_held_locks+0x130/0x130 [ 52.684381] ? kasan_check_write+0x14/0x20 [ 52.688596] ? proc_fail_nth_write+0x13a/0x180 [ 52.693159] ? proc_cwd_link+0x1b0/0x1b0 [ 52.697201] ? __lock_is_held+0xb5/0x140 [ 52.701241] do_vfs_ioctl+0x196/0x10c0 [ 52.705125] ? ioctl_preallocate+0x1c0/0x1c0 [ 52.709529] ? selinux_file_mprotect+0x5f0/0x5f0 [ 52.714275] ? __schedule+0x5f3/0x1c10 [ 52.718152] ? ksys_dup3+0x2e0/0x2e0 [ 52.721856] ? kasan_check_write+0x14/0x20 [ 52.726079] ? fput+0x18/0x120 [ 52.729259] ? security_file_ioctl+0x4a/0x90 [ 52.733654] ? __fget_light+0x174/0x1e0 [ 52.737606] ksys_ioctl+0x62/0x90 [ 52.741035] ? lockdep_hardirqs_on+0x421/0x5c0 [ 52.745597] __x64_sys_ioctl+0x6e/0xb0 [ 52.749467] do_syscall_64+0xd0/0x4e0 [ 52.753256] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.758422] RIP: 0033:0x45a639 [ 52.761591] Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.780473] RSP: 002b:00007fadf16d7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.788158] RAX: ffffffffffffffda RBX: 00007fadf16d7c90 RCX: 000000000045a639 [ 52.795409] RDX: 00000000200003c0 RSI: 0000000000005423 RDI: 0000000000000003 [ 52.802658] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 52.810019] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fadf16d86d4 [ 52.817278] R13: 00000000004c52b4 R14: 00000000004da170 R15: 0000000000000004 [ 52.825906] Kernel Offset: disabled [ 52.829697] Rebooting in 86400 seconds..