[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 49.725328] IPVS: ftp: loaded support on port[0] = 21 [ 85.260346] can: request_module (can-proto-0) failed. [ 85.273072] can: request_module (can-proto-0) failed. Warning: Permanently added '10.128.0.141' (ECDSA) to the list of known hosts. 2021/04/01 20:20:29 parsed 1 programs 2021/04/01 20:20:29 executed programs: 0 [ 95.452444] IPVS: ftp: loaded support on port[0] = 21 [ 95.488543] IPVS: ftp: loaded support on port[0] = 21 [ 95.512117] IPVS: ftp: loaded support on port[0] = 21 [ 95.555077] IPVS: ftp: loaded support on port[0] = 21 [ 95.571343] IPVS: ftp: loaded support on port[0] = 21 [ 95.618374] IPVS: ftp: loaded support on port[0] = 21 [ 98.482668] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.489362] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.498182] device bridge_slave_0 entered promiscuous mode [ 98.536690] ip (5982) used greatest stack depth: 6184 bytes left [ 98.698976] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.705713] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.714513] device bridge_slave_1 entered promiscuous mode [ 98.721834] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.728724] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.737451] device bridge_slave_0 entered promiscuous mode [ 98.784356] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.790941] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.799710] device bridge_slave_0 entered promiscuous mode [ 98.902112] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.908772] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.917610] device bridge_slave_1 entered promiscuous mode [ 98.927816] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.934475] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.943011] device bridge_slave_1 entered promiscuous mode [ 98.991706] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.998933] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.007679] device bridge_slave_0 entered promiscuous mode [ 99.029697] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.036386] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.045145] device bridge_slave_0 entered promiscuous mode [ 99.065945] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.072897] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.081668] device bridge_slave_0 entered promiscuous mode [ 99.096752] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.103304] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.112430] device bridge_slave_1 entered promiscuous mode [ 99.181480] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.188218] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.197336] device bridge_slave_1 entered promiscuous mode [ 99.233193] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.240144] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.249204] device bridge_slave_1 entered promiscuous mode [ 99.349197] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 99.517720] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 99.648012] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 99.657610] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 99.681604] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 99.759976] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 99.803608] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 99.817559] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 99.856800] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 99.871310] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 99.901744] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 99.934334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 99.976503] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.007068] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 100.030408] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.058680] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.072714] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 100.144219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 100.173737] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 100.201112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 100.261199] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 100.276366] team0: Port device team_slave_0 added [ 100.318001] ip (6273) used greatest stack depth: 6136 bytes left [ 100.390837] team0: Port device team_slave_1 added [ 100.480935] team0: Port device team_slave_0 added [ 100.545821] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 100.580281] team0: Port device team_slave_0 added [ 100.624652] team0: Port device team_slave_1 added [ 100.665959] team0: Port device team_slave_0 added [ 100.672182] ip (6328) used greatest stack depth: 5688 bytes left [ 100.716991] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 100.726478] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 100.748571] team0: Port device team_slave_1 added [ 100.770800] team0: Port device team_slave_0 added [ 100.790466] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 100.800168] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 100.812608] team0: Port device team_slave_1 added [ 100.852901] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 100.862396] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 100.871616] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 100.881566] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 100.915800] team0: Port device team_slave_0 added [ 100.939249] team0: Port device team_slave_1 added [ 101.013656] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 101.022941] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 101.031805] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.041618] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.050775] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.060628] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.069567] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 101.078848] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 101.087632] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 101.097035] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 101.111315] team0: Port device team_slave_1 added [ 101.305751] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 101.315416] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 101.324033] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.333872] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.342666] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.352369] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.361159] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 101.370447] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 101.378979] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.388926] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.397805] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.407930] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.417054] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 101.426531] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 101.435360] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 101.444449] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 101.452785] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.462709] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.478198] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.488048] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.525619] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 101.614842] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.624777] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.691251] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.701259] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.774619] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.784780] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 102.512397] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.519130] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.526625] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.533422] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.562326] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.569005] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.576299] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.582983] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.693656] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 102.701861] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 102.719778] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.726468] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.733740] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.740338] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.766357] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.773247] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.780571] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.787370] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.948198] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.955032] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.962158] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.968962] bridge0: port 1(bridge_slave_0) entered forwarding state [ 103.176203] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.182815] bridge0: port 2(bridge_slave_1) entered forwarding state [ 103.190124] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.196817] bridge0: port 1(bridge_slave_0) entered forwarding state [ 103.704861] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 103.713209] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 103.721709] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 103.730166] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 107.274626] 8021q: adding VLAN 0 to HW filter on device bond0 [ 107.320182] 8021q: adding VLAN 0 to HW filter on device bond0 [ 107.351520] 8021q: adding VLAN 0 to HW filter on device bond0 [ 107.376434] 8021q: adding VLAN 0 to HW filter on device bond0 [ 107.655810] 8021q: adding VLAN 0 to HW filter on device bond0 [ 107.919781] 8021q: adding VLAN 0 to HW filter on device bond0 [ 108.059040] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 108.067407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 108.155444] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 108.163834] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 108.193131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 108.201780] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 108.269611] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 108.277951] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 108.446068] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 108.454732] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 108.623143] 8021q: adding VLAN 0 to HW filter on device team0 [ 108.638279] 8021q: adding VLAN 0 to HW filter on device team0 [ 108.656600] 8021q: adding VLAN 0 to HW filter on device team0 [ 108.718814] 8021q: adding VLAN 0 to HW filter on device team0 [ 108.903565] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 108.912002] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 108.964014] 8021q: adding VLAN 0 to HW filter on device team0 [ 109.326048] 8021q: adding VLAN 0 to HW filter on device team0 [ 112.627532] ===================================================== [ 112.634199] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 112.639695] CPU: 0 PID: 7519 Comm: syz-executor5 Not tainted 5.11.0-rc7-syzkaller #0 [ 112.647588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 112.657149] Call Trace: [ 112.659729] dump_stack+0x1df/0x240 [ 112.663352] kmsan_report+0xfb/0x1e0 [ 112.667060] __msan_warning+0x5f/0xa0 [ 112.670855] bcmp+0x127/0x180 [ 112.673959] __dev_mc_add+0x1fd/0x8e0 [ 112.677755] ? arp_mc_map+0x7c9/0x970 [ 112.681554] dev_mc_add+0x6d/0x80 [ 112.685152] igmp_group_added+0x293/0xbf0 [ 112.689292] ? _raw_spin_unlock_bh+0x4b/0x60 [ 112.693720] ____ip_mc_inc_group+0xe5e/0xf40 [ 112.698136] ip_mc_up+0x1c8/0x3f0 [ 112.701617] inetdev_event+0x1da6/0x1e60 [ 112.705688] ? kmsan_get_metadata+0x116/0x180 [ 112.710178] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 112.715277] ? ipv4_doint_and_flush+0x280/0x280 [ 112.719964] raw_notifier_call_chain+0x130/0x250 [ 112.724811] __dev_notify_flags+0x4ff/0xa60 [ 112.729139] dev_change_flags+0x1d6/0x260 [ 112.733396] dev_ifsioc+0x535/0x11f0 [ 112.737111] dev_ioctl+0x9d2/0x1500 [ 112.740770] sock_do_ioctl+0x3e9/0x5e0 [ 112.744686] sock_ioctl+0x90a/0xde0 [ 112.748488] ? kmsan_get_metadata+0x116/0x180 [ 112.752991] ? sock_poll+0x590/0x590 [ 112.756713] __se_sys_ioctl+0x2c4/0x400 [ 112.760693] ? kmsan_get_metadata+0x116/0x180 [ 112.765206] __x64_sys_ioctl+0x4a/0x70 [ 112.769088] do_syscall_64+0xa2/0x120 [ 112.772896] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 112.778132] RIP: 0033:0x45f5a9 [ 112.781336] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 112.800463] RSP: 002b:00007fabe70bd1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 112.808265] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 112.815563] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 112.823002] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 112.830727] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 112.838500] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007fabe70bd6bc [ 112.845904] [ 112.847536] Local variable ----buf.i@igmp_group_added created at: [ 112.853763] igmp_group_added+0x147/0xbf0 [ 112.858029] igmp_group_added+0x147/0xbf0 [ 112.862171] ===================================================== [ 112.868410] Disabling lock debugging due to kernel taint [ 112.875252] ===================================================== [ 112.881594] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 112.887108] CPU: 0 PID: 7519 Comm: syz-executor5 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 112.896414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 112.906219] Call Trace: [ 112.909006] dump_stack+0x1df/0x240 [ 112.912659] kmsan_report+0xfb/0x1e0 [ 112.916395] __msan_warning+0x5f/0xa0 [ 112.920218] bcmp+0x127/0x180 [ 112.923375] __dev_mc_add+0x1fd/0x8e0 [ 112.927564] ? arp_mc_map+0x7c9/0x970 [ 112.931479] dev_mc_add+0x6d/0x80 [ 112.935001] igmp_group_added+0x293/0xbf0 [ 112.939256] ? _raw_spin_unlock_bh+0x4b/0x60 [ 112.943786] ____ip_mc_inc_group+0xe5e/0xf40 [ 112.948258] ip_mc_up+0x1c8/0x3f0 [ 112.951721] inetdev_event+0x1da6/0x1e60 [ 112.955781] ? kmsan_get_metadata+0x116/0x180 [ 112.960279] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 112.965721] ? ipv4_doint_and_flush+0x280/0x280 [ 112.970488] raw_notifier_call_chain+0x130/0x250 [ 112.975330] __dev_notify_flags+0x4ff/0xa60 [ 112.979658] dev_change_flags+0x1d6/0x260 [ 112.983941] dev_ifsioc+0x535/0x11f0 [ 112.987745] dev_ioctl+0x9d2/0x1500 [ 112.991564] sock_do_ioctl+0x3e9/0x5e0 [ 112.995461] sock_ioctl+0x90a/0xde0 [ 113.000162] ? kmsan_get_metadata+0x116/0x180 [ 113.004680] ? sock_poll+0x590/0x590 [ 113.008414] __se_sys_ioctl+0x2c4/0x400 [ 113.012391] ? kmsan_get_metadata+0x116/0x180 [ 113.016909] __x64_sys_ioctl+0x4a/0x70 [ 113.020829] do_syscall_64+0xa2/0x120 [ 113.024646] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 113.029839] RIP: 0033:0x45f5a9 [ 113.033132] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 113.052129] RSP: 002b:00007fabe70bd1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 113.059887] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 113.067257] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 113.075217] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 113.082483] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 113.089758] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007fabe70bd6bc [ 113.097117] [ 113.098731] Local variable ----buf.i@igmp_group_added created at: [ 113.104960] igmp_group_added+0x147/0xbf0 [ 113.109105] igmp_group_added+0x147/0xbf0 [ 113.113256] ===================================================== 2021/04/01 20:20:47 executed programs: 6 [ 113.958398] ===================================================== [ 113.964753] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 113.970239] CPU: 0 PID: 7534 Comm: syz-executor3 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 113.979542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.988890] Call Trace: [ 113.991463] dump_stack+0x1df/0x240 [ 113.995095] kmsan_report+0xfb/0x1e0 [ 113.998819] __msan_warning+0x5f/0xa0 [ 114.002629] bcmp+0x127/0x180 [ 114.005738] __dev_mc_add+0x1fd/0x8e0 [ 114.009572] ? arp_mc_map+0x7c9/0x970 [ 114.013421] dev_mc_add+0x6d/0x80 [ 114.017013] igmp_group_added+0x293/0xbf0 [ 114.021161] ? _raw_spin_unlock_bh+0x4b/0x60 [ 114.025579] ____ip_mc_inc_group+0xe5e/0xf40 [ 114.030096] ip_mc_up+0x1c8/0x3f0 [ 114.033574] inetdev_event+0x1da6/0x1e60 [ 114.037680] ? kmsan_get_metadata+0x116/0x180 [ 114.042172] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 114.047302] ? ipv4_doint_and_flush+0x280/0x280 [ 114.051982] raw_notifier_call_chain+0x130/0x250 [ 114.056755] __dev_notify_flags+0x4ff/0xa60 [ 114.061103] dev_change_flags+0x1d6/0x260 [ 114.065268] dev_ifsioc+0x535/0x11f0 [ 114.068996] dev_ioctl+0x9d2/0x1500 [ 114.072652] sock_do_ioctl+0x3e9/0x5e0 [ 114.076553] sock_ioctl+0x90a/0xde0 [ 114.080197] ? kmsan_get_metadata+0x116/0x180 [ 114.084695] ? sock_poll+0x590/0x590 [ 114.088443] __se_sys_ioctl+0x2c4/0x400 [ 114.092416] ? kmsan_get_metadata+0x116/0x180 [ 114.096931] __x64_sys_ioctl+0x4a/0x70 [ 114.100824] do_syscall_64+0xa2/0x120 [ 114.104657] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 114.109844] RIP: 0033:0x45f5a9 [ 114.113221] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 114.132246] RSP: 002b:00007f7ae8c6f1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 114.139954] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 114.147231] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 114.154595] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 114.161869] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 114.169134] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f7ae8c6f6bc [ 114.176492] [ 114.178199] Local variable ----buf.i@igmp_group_added created at: [ 114.184429] igmp_group_added+0x147/0xbf0 [ 114.188655] igmp_group_added+0x147/0xbf0 [ 114.193341] ===================================================== [ 114.199982] ===================================================== [ 114.206672] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 114.212276] CPU: 0 PID: 7534 Comm: syz-executor3 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 114.221571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 114.231039] Call Trace: [ 114.233636] dump_stack+0x1df/0x240 [ 114.237376] kmsan_report+0xfb/0x1e0 [ 114.241116] __msan_warning+0x5f/0xa0 [ 114.245064] bcmp+0x127/0x180 [ 114.248348] __dev_mc_add+0x1fd/0x8e0 [ 114.252154] ? arp_mc_map+0x7c9/0x970 [ 114.255980] dev_mc_add+0x6d/0x80 [ 114.259615] igmp_group_added+0x293/0xbf0 [ 114.263825] ? _raw_spin_unlock_bh+0x4b/0x60 [ 114.268252] ____ip_mc_inc_group+0xe5e/0xf40 [ 114.272679] ip_mc_up+0x1c8/0x3f0 [ 114.276132] inetdev_event+0x1da6/0x1e60 [ 114.280214] ? kmsan_get_metadata+0x116/0x180 [ 114.284705] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 114.289807] ? ipv4_doint_and_flush+0x280/0x280 [ 114.294503] raw_notifier_call_chain+0x130/0x250 [ 114.299278] __dev_notify_flags+0x4ff/0xa60 [ 114.303615] dev_change_flags+0x1d6/0x260 [ 114.307803] dev_ifsioc+0x535/0x11f0 [ 114.311514] dev_ioctl+0x9d2/0x1500 [ 114.315170] sock_do_ioctl+0x3e9/0x5e0 [ 114.319099] sock_ioctl+0x90a/0xde0 [ 114.322740] ? kmsan_get_metadata+0x116/0x180 [ 114.327339] ? sock_poll+0x590/0x590 [ 114.331051] __se_sys_ioctl+0x2c4/0x400 [ 114.335058] ? kmsan_get_metadata+0x116/0x180 [ 114.339564] __x64_sys_ioctl+0x4a/0x70 [ 114.343448] do_syscall_64+0xa2/0x120 [ 114.347278] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 114.352483] RIP: 0033:0x45f5a9 [ 114.355676] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 114.374877] RSP: 002b:00007f7ae8c6f1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 114.382608] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 114.390215] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 114.397595] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 114.405271] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 114.412565] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f7ae8c6f6bc [ 114.419863] [ 114.421486] Local variable ----buf.i@igmp_group_added created at: [ 114.427703] igmp_group_added+0x147/0xbf0 [ 114.431867] igmp_group_added+0x147/0xbf0 [ 114.436009] ===================================================== [ 114.727734] ===================================================== [ 114.734330] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 114.739806] CPU: 0 PID: 7545 Comm: syz-executor5 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 114.749194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 114.758563] Call Trace: [ 114.761160] dump_stack+0x1df/0x240 [ 114.764828] kmsan_report+0xfb/0x1e0 [ 114.768535] __msan_warning+0x5f/0xa0 [ 114.772327] bcmp+0x127/0x180 [ 114.775431] __dev_mc_add+0x1fd/0x8e0 [ 114.779238] ? arp_mc_map+0x7c9/0x970 [ 114.783040] dev_mc_add+0x6d/0x80 [ 114.786490] igmp_group_added+0x293/0xbf0 [ 114.790630] ? _raw_spin_unlock_bh+0x4b/0x60 [ 114.795039] ____ip_mc_inc_group+0xe5e/0xf40 [ 114.799466] ip_mc_up+0x1c8/0x3f0 [ 114.802938] inetdev_event+0x1da6/0x1e60 [ 114.807033] ? kmsan_get_metadata+0x116/0x180 [ 114.811726] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 114.816826] ? ipv4_doint_and_flush+0x280/0x280 [ 114.821507] raw_notifier_call_chain+0x130/0x250 [ 114.826283] __dev_notify_flags+0x4ff/0xa60 [ 114.830606] dev_change_flags+0x1d6/0x260 [ 114.835283] dev_ifsioc+0x535/0x11f0 [ 114.839005] dev_ioctl+0x9d2/0x1500 [ 114.842664] sock_do_ioctl+0x3e9/0x5e0 [ 114.846551] sock_ioctl+0x90a/0xde0 [ 114.850175] ? kmsan_get_metadata+0x116/0x180 [ 114.854668] ? sock_poll+0x590/0x590 [ 114.858581] __se_sys_ioctl+0x2c4/0x400 [ 114.862579] ? kmsan_get_metadata+0x116/0x180 [ 114.867160] __x64_sys_ioctl+0x4a/0x70 [ 114.871047] do_syscall_64+0xa2/0x120 [ 114.874855] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 114.880084] RIP: 0033:0x45f5a9 [ 114.883277] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 114.902452] RSP: 002b:00007fabe70bd1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 114.910177] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 114.917459] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 114.924741] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 114.932018] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 114.939891] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007fabe70bd6bc [ 114.947162] [ 114.948774] Local variable ----buf.i@igmp_group_added created at: [ 114.955118] igmp_group_added+0x147/0xbf0 [ 114.959269] igmp_group_added+0x147/0xbf0 [ 114.963446] ===================================================== [ 114.970052] ===================================================== [ 114.976314] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 114.981923] CPU: 0 PID: 7545 Comm: syz-executor5 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 114.991342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 115.000720] Call Trace: [ 115.003340] dump_stack+0x1df/0x240 [ 115.006998] kmsan_report+0xfb/0x1e0 [ 115.010738] __msan_warning+0x5f/0xa0 [ 115.014566] bcmp+0x127/0x180 [ 115.017700] __dev_mc_add+0x1fd/0x8e0 [ 115.021734] ? arp_mc_map+0x7c9/0x970 [ 115.025579] dev_mc_add+0x6d/0x80 [ 115.029039] igmp_group_added+0x293/0xbf0 [ 115.033203] ? _raw_spin_unlock_bh+0x4b/0x60 [ 115.037625] ____ip_mc_inc_group+0xe5e/0xf40 [ 115.042050] ip_mc_up+0x1c8/0x3f0 [ 115.045506] inetdev_event+0x1da6/0x1e60 [ 115.049583] ? kmsan_get_metadata+0x116/0x180 [ 115.054246] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 115.059370] ? ipv4_doint_and_flush+0x280/0x280 [ 115.064066] raw_notifier_call_chain+0x130/0x250 [ 115.069129] __dev_notify_flags+0x4ff/0xa60 [ 115.073547] dev_change_flags+0x1d6/0x260 [ 115.077789] dev_ifsioc+0x535/0x11f0 [ 115.081513] dev_ioctl+0x9d2/0x1500 [ 115.085151] sock_do_ioctl+0x3e9/0x5e0 [ 115.089051] sock_ioctl+0x90a/0xde0 [ 115.092680] ? kmsan_get_metadata+0x116/0x180 [ 115.097352] ? sock_poll+0x590/0x590 [ 115.101193] __se_sys_ioctl+0x2c4/0x400 [ 115.105373] ? kmsan_get_metadata+0x116/0x180 [ 115.110052] __x64_sys_ioctl+0x4a/0x70 [ 115.114067] do_syscall_64+0xa2/0x120 [ 115.117913] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 115.123102] RIP: 0033:0x45f5a9 [ 115.126375] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 115.145372] RSP: 002b:00007fabe70bd1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 115.153107] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 115.160385] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 115.167665] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 115.174946] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 115.182227] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007fabe70bd6bc [ 115.189612] [ 115.191340] Local variable ----buf.i@igmp_group_added created at: [ 115.197735] igmp_group_added+0x147/0xbf0 [ 115.201913] igmp_group_added+0x147/0xbf0 [ 115.206064] ===================================================== [ 115.447886] ===================================================== [ 115.455382] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 115.460982] CPU: 1 PID: 7554 Comm: syz-executor1 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 115.470356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 115.479713] Call Trace: [ 115.482298] dump_stack+0x1df/0x240 [ 115.485985] kmsan_report+0xfb/0x1e0 [ 115.489852] __msan_warning+0x5f/0xa0 [ 115.493661] bcmp+0x127/0x180 [ 115.497641] __dev_mc_add+0x1fd/0x8e0 [ 115.501444] ? arp_mc_map+0x7c9/0x970 [ 115.505263] dev_mc_add+0x6d/0x80 [ 115.508810] igmp_group_added+0x293/0xbf0 [ 115.513142] ? _raw_spin_unlock_bh+0x4b/0x60 [ 115.517701] ____ip_mc_inc_group+0xe5e/0xf40 [ 115.522192] ip_mc_up+0x1c8/0x3f0 [ 115.525757] inetdev_event+0x1da6/0x1e60 [ 115.529835] ? kmsan_get_metadata+0x116/0x180 [ 115.534587] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 115.539690] ? ipv4_doint_and_flush+0x280/0x280 [ 115.544478] raw_notifier_call_chain+0x130/0x250 [ 115.549265] __dev_notify_flags+0x4ff/0xa60 [ 115.553623] dev_change_flags+0x1d6/0x260 [ 115.557984] dev_ifsioc+0x535/0x11f0 [ 115.561738] dev_ioctl+0x9d2/0x1500 [ 115.565402] sock_do_ioctl+0x3e9/0x5e0 [ 115.569313] sock_ioctl+0x90a/0xde0 [ 115.572956] ? kmsan_get_metadata+0x116/0x180 [ 115.577449] ? sock_poll+0x590/0x590 [ 115.581346] __se_sys_ioctl+0x2c4/0x400 [ 115.585320] ? kmsan_get_metadata+0x116/0x180 [ 115.589949] __x64_sys_ioctl+0x4a/0x70 [ 115.593969] do_syscall_64+0xa2/0x120 [ 115.597800] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 115.604187] RIP: 0033:0x45f5a9 [ 115.607386] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 115.626413] RSP: 002b:00007f9d4af1b1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 115.634160] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 115.641701] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 115.648987] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 115.656659] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 115.663946] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f9d4af1b6bc [ 115.671222] [ 115.672851] Local variable ----buf.i@igmp_group_added created at: [ 115.679088] igmp_group_added+0x147/0xbf0 [ 115.683275] igmp_group_added+0x147/0xbf0 [ 115.687439] ===================================================== [ 115.694288] ===================================================== [ 115.700552] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 115.706099] CPU: 1 PID: 7554 Comm: syz-executor1 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 115.715395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 115.724791] Call Trace: [ 115.727386] dump_stack+0x1df/0x240 [ 115.731041] kmsan_report+0xfb/0x1e0 [ 115.734780] __msan_warning+0x5f/0xa0 [ 115.738606] bcmp+0x127/0x180 [ 115.741740] __dev_mc_add+0x1fd/0x8e0 [ 115.745577] ? arp_mc_map+0x7c9/0x970 [ 115.749394] dev_mc_add+0x6d/0x80 [ 115.752846] igmp_group_added+0x293/0xbf0 [ 115.757011] ? _raw_spin_unlock_bh+0x4b/0x60 [ 115.761680] ____ip_mc_inc_group+0xe5e/0xf40 [ 115.766361] ip_mc_up+0x1c8/0x3f0 [ 115.769829] inetdev_event+0x1da6/0x1e60 [ 115.773897] ? kmsan_get_metadata+0x116/0x180 [ 115.778394] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 115.783504] ? ipv4_doint_and_flush+0x280/0x280 [ 115.788233] raw_notifier_call_chain+0x130/0x250 [ 115.793040] __dev_notify_flags+0x4ff/0xa60 [ 115.797399] dev_change_flags+0x1d6/0x260 [ 115.801567] dev_ifsioc+0x535/0x11f0 [ 115.805424] dev_ioctl+0x9d2/0x1500 [ 115.809051] sock_do_ioctl+0x3e9/0x5e0 [ 115.812948] sock_ioctl+0x90a/0xde0 [ 115.816763] ? kmsan_get_metadata+0x116/0x180 [ 115.821441] ? sock_poll+0x590/0x590 [ 115.825210] __se_sys_ioctl+0x2c4/0x400 [ 115.829314] ? kmsan_get_metadata+0x116/0x180 [ 115.833840] __x64_sys_ioctl+0x4a/0x70 [ 115.837740] do_syscall_64+0xa2/0x120 [ 115.841725] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 115.846916] RIP: 0033:0x45f5a9 [ 115.850152] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 115.869390] RSP: 002b:00007f9d4af1b1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 115.877105] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 115.884382] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 115.891691] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 115.899100] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 115.907294] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f9d4af1b6bc [ 115.914569] [ 115.916190] Local variable ----buf.i@igmp_group_added created at: [ 115.922417] igmp_group_added+0x147/0xbf0 [ 115.926566] igmp_group_added+0x147/0xbf0 [ 115.930728] ===================================================== [ 116.068750] ===================================================== [ 116.075159] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 116.080709] CPU: 0 PID: 7561 Comm: syz-executor4 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 116.090177] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.099528] Call Trace: [ 116.102122] dump_stack+0x1df/0x240 [ 116.105749] kmsan_report+0xfb/0x1e0 [ 116.109459] __msan_warning+0x5f/0xa0 [ 116.113343] bcmp+0x127/0x180 [ 116.116470] __dev_mc_add+0x1fd/0x8e0 [ 116.120297] ? arp_mc_map+0x7c9/0x970 [ 116.124133] dev_mc_add+0x6d/0x80 [ 116.127581] igmp_group_added+0x293/0xbf0 [ 116.131728] ? _raw_spin_unlock_bh+0x4b/0x60 [ 116.136191] ____ip_mc_inc_group+0xe5e/0xf40 [ 116.140622] ip_mc_up+0x1c8/0x3f0 [ 116.144071] inetdev_event+0x1da6/0x1e60 [ 116.148167] ? kmsan_get_metadata+0x116/0x180 [ 116.152655] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 116.157752] ? ipv4_doint_and_flush+0x280/0x280 [ 116.162418] raw_notifier_call_chain+0x130/0x250 [ 116.167192] __dev_notify_flags+0x4ff/0xa60 [ 116.171550] dev_change_flags+0x1d6/0x260 [ 116.175802] dev_ifsioc+0x535/0x11f0 [ 116.179520] dev_ioctl+0x9d2/0x1500 [ 116.183151] sock_do_ioctl+0x3e9/0x5e0 [ 116.187046] sock_ioctl+0x90a/0xde0 [ 116.190693] ? kmsan_get_metadata+0x116/0x180 [ 116.195188] ? sock_poll+0x590/0x590 [ 116.198907] __se_sys_ioctl+0x2c4/0x400 [ 116.202883] ? kmsan_get_metadata+0x116/0x180 [ 116.207395] __x64_sys_ioctl+0x4a/0x70 [ 116.211299] do_syscall_64+0xa2/0x120 [ 116.215095] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 116.220289] RIP: 0033:0x45f5a9 [ 116.223495] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 116.242502] RSP: 002b:00007f4f3e3541a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 116.250224] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 116.257501] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 116.264773] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 116.272052] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 116.279367] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f4f3e3546bc [ 116.286660] [ 116.288280] Local variable ----buf.i@igmp_group_added created at: [ 116.294517] igmp_group_added+0x147/0xbf0 [ 116.298686] igmp_group_added+0x147/0xbf0 [ 116.302833] ===================================================== [ 116.309259] ===================================================== [ 116.315673] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 116.321132] CPU: 0 PID: 7561 Comm: syz-executor4 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 116.330653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.340074] Call Trace: [ 116.342866] dump_stack+0x1df/0x240 [ 116.346502] kmsan_report+0xfb/0x1e0 [ 116.350227] __msan_warning+0x5f/0xa0 [ 116.354028] bcmp+0x127/0x180 [ 116.357166] __dev_mc_add+0x1fd/0x8e0 [ 116.360972] ? arp_mc_map+0x7c9/0x970 [ 116.364779] dev_mc_add+0x6d/0x80 [ 116.368231] igmp_group_added+0x293/0xbf0 [ 116.372467] ? _raw_spin_unlock_bh+0x4b/0x60 [ 116.376881] ____ip_mc_inc_group+0xe5e/0xf40 [ 116.381320] ip_mc_up+0x1c8/0x3f0 [ 116.384782] inetdev_event+0x1da6/0x1e60 [ 116.388866] ? kmsan_get_metadata+0x116/0x180 [ 116.393360] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 116.398457] ? ipv4_doint_and_flush+0x280/0x280 [ 116.403133] raw_notifier_call_chain+0x130/0x250 [ 116.407936] __dev_notify_flags+0x4ff/0xa60 [ 116.412294] dev_change_flags+0x1d6/0x260 [ 116.416481] dev_ifsioc+0x535/0x11f0 [ 116.420203] dev_ioctl+0x9d2/0x1500 [ 116.423834] sock_do_ioctl+0x3e9/0x5e0 [ 116.427726] sock_ioctl+0x90a/0xde0 [ 116.431412] ? kmsan_get_metadata+0x116/0x180 [ 116.435916] ? sock_poll+0x590/0x590 [ 116.439656] __se_sys_ioctl+0x2c4/0x400 [ 116.443627] ? kmsan_get_metadata+0x116/0x180 [ 116.448117] __x64_sys_ioctl+0x4a/0x70 [ 116.452001] do_syscall_64+0xa2/0x120 [ 116.455929] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 116.461157] RIP: 0033:0x45f5a9 [ 116.464388] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 116.483298] RSP: 002b:00007f4f3e3541a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 116.491372] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 116.498645] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 116.505946] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 116.513227] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 116.520510] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f4f3e3546bc [ 116.527798] [ 116.529417] Local variable ----buf.i@igmp_group_added created at: [ 116.535649] igmp_group_added+0x147/0xbf0 [ 116.539807] igmp_group_added+0x147/0xbf0 [ 116.544874] ===================================================== [ 116.867684] ===================================================== [ 116.873943] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 116.879425] CPU: 1 PID: 7572 Comm: syz-executor3 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 116.888917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.898499] Call Trace: [ 116.901090] dump_stack+0x1df/0x240 [ 116.904860] kmsan_report+0xfb/0x1e0 [ 116.908580] __msan_warning+0x5f/0xa0 [ 116.912501] bcmp+0x127/0x180 [ 116.915698] __dev_mc_add+0x1fd/0x8e0 [ 116.919668] ? arp_mc_map+0x7c9/0x970 [ 116.923482] dev_mc_add+0x6d/0x80 [ 116.926936] igmp_group_added+0x293/0xbf0 [ 116.931178] ? _raw_spin_unlock_bh+0x4b/0x60 [ 116.935618] ____ip_mc_inc_group+0xe5e/0xf40 [ 116.940033] ip_mc_up+0x1c8/0x3f0 [ 116.943509] inetdev_event+0x1da6/0x1e60 [ 116.947578] ? kmsan_get_metadata+0x116/0x180 [ 116.952093] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 116.957325] ? ipv4_doint_and_flush+0x280/0x280 [ 116.962019] raw_notifier_call_chain+0x130/0x250 [ 116.966785] __dev_notify_flags+0x4ff/0xa60 [ 116.971139] dev_change_flags+0x1d6/0x260 [ 116.975310] dev_ifsioc+0x535/0x11f0 [ 116.979072] dev_ioctl+0x9d2/0x1500 [ 116.982867] sock_do_ioctl+0x3e9/0x5e0 [ 116.986763] sock_ioctl+0x90a/0xde0 [ 116.990401] ? kmsan_get_metadata+0x116/0x180 [ 116.994999] ? sock_poll+0x590/0x590 [ 116.998790] __se_sys_ioctl+0x2c4/0x400 [ 117.002844] ? kmsan_get_metadata+0x116/0x180 [ 117.007339] __x64_sys_ioctl+0x4a/0x70 [ 117.011244] do_syscall_64+0xa2/0x120 [ 117.015057] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 117.020355] RIP: 0033:0x45f5a9 [ 117.023675] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 117.042584] RSP: 002b:00007f7ae8c6f1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 117.050384] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 117.057650] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 117.064920] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 117.072204] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 117.079489] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f7ae8c6f6bc [ 117.086770] [ 117.088399] Local variable ----buf.i@igmp_group_added created at: [ 117.094625] igmp_group_added+0x147/0xbf0 [ 117.098797] igmp_group_added+0x147/0xbf0 [ 117.103083] ===================================================== [ 117.109667] ===================================================== [ 117.116105] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 117.121598] CPU: 1 PID: 7572 Comm: syz-executor3 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 117.131325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.140722] Call Trace: [ 117.143401] dump_stack+0x1df/0x240 [ 117.147059] kmsan_report+0xfb/0x1e0 [ 117.150904] __msan_warning+0x5f/0xa0 [ 117.154816] bcmp+0x127/0x180 [ 117.157961] __dev_mc_add+0x1fd/0x8e0 [ 117.161771] ? arp_mc_map+0x7c9/0x970 [ 117.165596] dev_mc_add+0x6d/0x80 [ 117.169086] igmp_group_added+0x293/0xbf0 [ 117.173265] ? _raw_spin_unlock_bh+0x4b/0x60 [ 117.177692] ____ip_mc_inc_group+0xe5e/0xf40 [ 117.182135] ip_mc_up+0x1c8/0x3f0 [ 117.185585] inetdev_event+0x1da6/0x1e60 [ 117.189651] ? kmsan_get_metadata+0x116/0x180 [ 117.194163] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 117.199275] ? ipv4_doint_and_flush+0x280/0x280 [ 117.204338] raw_notifier_call_chain+0x130/0x250 [ 117.209109] __dev_notify_flags+0x4ff/0xa60 [ 117.213449] dev_change_flags+0x1d6/0x260 [ 117.217697] dev_ifsioc+0x535/0x11f0 [ 117.221545] dev_ioctl+0x9d2/0x1500 [ 117.225354] sock_do_ioctl+0x3e9/0x5e0 [ 117.229289] sock_ioctl+0x90a/0xde0 [ 117.233041] ? kmsan_get_metadata+0x116/0x180 [ 117.237633] ? sock_poll+0x590/0x590 [ 117.241588] __se_sys_ioctl+0x2c4/0x400 [ 117.245568] ? kmsan_get_metadata+0x116/0x180 [ 117.250068] __x64_sys_ioctl+0x4a/0x70 [ 117.253964] do_syscall_64+0xa2/0x120 [ 117.257861] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 117.263080] RIP: 0033:0x45f5a9 [ 117.266282] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 117.285318] RSP: 002b:00007f7ae8c6f1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 117.293044] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 117.300351] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 117.307717] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 117.315025] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 117.322462] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f7ae8c6f6bc [ 117.329935] [ 117.331554] Local variable ----buf.i@igmp_group_added created at: [ 117.337782] igmp_group_added+0x147/0xbf0 [ 117.341967] igmp_group_added+0x147/0xbf0 [ 117.346140] ===================================================== [ 117.456347] ===================================================== [ 117.462718] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 117.468190] CPU: 1 PID: 7577 Comm: syz-executor2 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 117.477465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.486928] Call Trace: [ 117.489517] dump_stack+0x1df/0x240 [ 117.493154] kmsan_report+0xfb/0x1e0 [ 117.496876] __msan_warning+0x5f/0xa0 [ 117.500681] bcmp+0x127/0x180 [ 117.503811] __dev_mc_add+0x1fd/0x8e0 [ 117.507627] ? arp_mc_map+0x7c9/0x970 [ 117.511449] dev_mc_add+0x6d/0x80 [ 117.514905] igmp_group_added+0x293/0xbf0 [ 117.519083] ? _raw_spin_unlock_bh+0x4b/0x60 [ 117.523517] ____ip_mc_inc_group+0xe5e/0xf40 [ 117.528037] ip_mc_up+0x1c8/0x3f0 [ 117.531498] inetdev_event+0x1da6/0x1e60 [ 117.535572] ? kmsan_get_metadata+0x116/0x180 [ 117.540072] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 117.545195] ? ipv4_doint_and_flush+0x280/0x280 [ 117.549876] raw_notifier_call_chain+0x130/0x250 [ 117.554746] __dev_notify_flags+0x4ff/0xa60 [ 117.559100] dev_change_flags+0x1d6/0x260 [ 117.563364] dev_ifsioc+0x535/0x11f0 [ 117.567113] dev_ioctl+0x9d2/0x1500 [ 117.570846] sock_do_ioctl+0x3e9/0x5e0 [ 117.574925] sock_ioctl+0x90a/0xde0 [ 117.578559] ? kmsan_get_metadata+0x116/0x180 [ 117.583066] ? sock_poll+0x590/0x590 [ 117.586788] __se_sys_ioctl+0x2c4/0x400 [ 117.590767] ? kmsan_get_metadata+0x116/0x180 [ 117.595269] __x64_sys_ioctl+0x4a/0x70 [ 117.599160] do_syscall_64+0xa2/0x120 [ 117.602970] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 117.608181] RIP: 0033:0x45f5a9 [ 117.611377] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 117.630292] RSP: 002b:00007f51b15f21a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 117.638014] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 117.645286] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 117.652670] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 117.659958] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 117.667227] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f51b15f26bc [ 117.674681] [ 117.676312] Local variable ----buf.i@igmp_group_added created at: [ 117.682578] igmp_group_added+0x147/0xbf0 [ 117.686826] igmp_group_added+0x147/0xbf0 [ 117.690980] ===================================================== [ 117.697514] ===================================================== [ 117.703745] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 117.709225] CPU: 1 PID: 7577 Comm: syz-executor2 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 117.718499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.727851] Call Trace: [ 117.730431] dump_stack+0x1df/0x240 [ 117.734064] kmsan_report+0xfb/0x1e0 [ 117.737791] __msan_warning+0x5f/0xa0 [ 117.741607] bcmp+0x127/0x180 [ 117.744741] __dev_mc_add+0x1fd/0x8e0 [ 117.748550] ? arp_mc_map+0x7c9/0x970 [ 117.752362] dev_mc_add+0x6d/0x80 [ 117.755823] igmp_group_added+0x293/0xbf0 [ 117.759979] ? _raw_spin_unlock_bh+0x4b/0x60 [ 117.764496] ____ip_mc_inc_group+0xe5e/0xf40 [ 117.768911] ip_mc_up+0x1c8/0x3f0 [ 117.772364] inetdev_event+0x1da6/0x1e60 [ 117.776434] ? kmsan_get_metadata+0x116/0x180 [ 117.780933] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 117.786048] ? ipv4_doint_and_flush+0x280/0x280 [ 117.790727] raw_notifier_call_chain+0x130/0x250 [ 117.795491] __dev_notify_flags+0x4ff/0xa60 [ 117.799826] dev_change_flags+0x1d6/0x260 [ 117.804013] dev_ifsioc+0x535/0x11f0 [ 117.807754] dev_ioctl+0x9d2/0x1500 [ 117.811429] sock_do_ioctl+0x3e9/0x5e0 [ 117.815326] sock_ioctl+0x90a/0xde0 [ 117.819030] ? kmsan_get_metadata+0x116/0x180 [ 117.823529] ? sock_poll+0x590/0x590 [ 117.827252] __se_sys_ioctl+0x2c4/0x400 [ 117.831253] ? kmsan_get_metadata+0x116/0x180 [ 117.835764] __x64_sys_ioctl+0x4a/0x70 [ 117.839673] do_syscall_64+0xa2/0x120 [ 117.843481] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 117.848678] RIP: 0033:0x45f5a9 [ 117.851867] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 117.870777] RSP: 002b:00007f51b15f21a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 117.878492] RAX: ffffffffffffffda RBX: 000000000051bf00 RCX: 000000000045f5a9 [ 117.885763] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 117.893034] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 117.900307] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 117.907579] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f51b15f26bc [ 117.914956] [ 117.916571] Local variable ----buf.i@igmp_group_added created at: [ 117.922796] igmp_group_added+0x147/0xbf0 [ 117.926950] igmp_group_added+0x147/0xbf0 [ 117.931106] ===================================================== [ 118.170381] ===================================================== [ 118.176695] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 118.182232] CPU: 1 PID: 7591 Comm: syz-executor0 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 118.191633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.201604] Call Trace: [ 118.204241] dump_stack+0x1df/0x240 [ 118.208020] kmsan_report+0xfb/0x1e0 [ 118.211787] __msan_warning+0x5f/0xa0 [ 118.215629] bcmp+0x127/0x180 [ 118.218774] __dev_mc_add+0x1fd/0x8e0 [ 118.222618] ? arp_mc_map+0x7c9/0x970 [ 118.226446] dev_mc_add+0x6d/0x80 [ 118.229925] igmp_group_added+0x293/0xbf0 [ 118.234087] ? _raw_spin_unlock_bh+0x4b/0x60 [ 118.238546] ____ip_mc_inc_group+0xe5e/0xf40 [ 118.243081] ip_mc_up+0x1c8/0x3f0 [ 118.246541] inetdev_event+0x1da6/0x1e60 [ 118.250617] ? kmsan_get_metadata+0x116/0x180 [ 118.255134] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 118.260343] ? ipv4_doint_and_flush+0x280/0x280 [ 118.265069] raw_notifier_call_chain+0x130/0x250 [ 118.269831] __dev_notify_flags+0x4ff/0xa60 [ 118.274169] dev_change_flags+0x1d6/0x260 [ 118.278352] dev_ifsioc+0x535/0x11f0 [ 118.282252] dev_ioctl+0x9d2/0x1500 [ 118.285899] sock_do_ioctl+0x3e9/0x5e0 [ 118.290022] sock_ioctl+0x90a/0xde0 [ 118.293686] ? kmsan_get_metadata+0x116/0x180 [ 118.298245] ? sock_poll+0x590/0x590 [ 118.301973] __se_sys_ioctl+0x2c4/0x400 [ 118.305995] ? kmsan_get_metadata+0x116/0x180 [ 118.310580] __x64_sys_ioctl+0x4a/0x70 [ 118.314615] do_syscall_64+0xa2/0x120 [ 118.318456] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 118.323677] RIP: 0033:0x45f5a9 [ 118.326888] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 118.346011] RSP: 002b:00007f12946441a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 118.353858] RAX: ffffffffffffffda RBX: 000000000051c040 RCX: 000000000045f5a9 [ 118.361251] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 118.368650] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 118.376031] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 118.383327] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f12946446bc [ 118.390628] [ 118.392289] Local variable ----buf.i@igmp_group_added created at: [ 118.398521] igmp_group_added+0x147/0xbf0 [ 118.402787] igmp_group_added+0x147/0xbf0 [ 118.407056] ===================================================== [ 118.413472] ===================================================== [ 118.419724] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 118.425214] CPU: 1 PID: 7591 Comm: syz-executor0 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 118.434499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.444220] Call Trace: [ 118.446832] dump_stack+0x1df/0x240 [ 118.450523] kmsan_report+0xfb/0x1e0 [ 118.454261] __msan_warning+0x5f/0xa0 [ 118.458099] bcmp+0x127/0x180 [ 118.461255] __dev_mc_add+0x1fd/0x8e0 [ 118.465167] ? arp_mc_map+0x7c9/0x970 [ 118.469084] dev_mc_add+0x6d/0x80 [ 118.472562] igmp_group_added+0x293/0xbf0 [ 118.476732] ? _raw_spin_unlock_bh+0x4b/0x60 [ 118.481181] ____ip_mc_inc_group+0xe5e/0xf40 [ 118.485649] ip_mc_up+0x1c8/0x3f0 [ 118.489134] inetdev_event+0x1da6/0x1e60 [ 118.493345] ? kmsan_get_metadata+0x116/0x180 [ 118.497872] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 118.503001] ? ipv4_doint_and_flush+0x280/0x280 [ 118.507702] raw_notifier_call_chain+0x130/0x250 [ 118.512474] __dev_notify_flags+0x4ff/0xa60 [ 118.516804] dev_change_flags+0x1d6/0x260 [ 118.520982] dev_ifsioc+0x535/0x11f0 [ 118.524751] dev_ioctl+0x9d2/0x1500 [ 118.528412] sock_do_ioctl+0x3e9/0x5e0 [ 118.532341] sock_ioctl+0x90a/0xde0 [ 118.535965] ? kmsan_get_metadata+0x116/0x180 [ 118.540461] ? sock_poll+0x590/0x590 [ 118.544179] __se_sys_ioctl+0x2c4/0x400 [ 118.548205] ? kmsan_get_metadata+0x116/0x180 [ 118.552808] __x64_sys_ioctl+0x4a/0x70 [ 118.556724] do_syscall_64+0xa2/0x120 [ 118.560648] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 118.565861] RIP: 0033:0x45f5a9 [ 118.569078] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 118.588189] RSP: 002b:00007f12946441a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 118.595964] RAX: ffffffffffffffda RBX: 000000000051c040 RCX: 000000000045f5a9 [ 118.603265] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 118.610549] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 118.617820] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 118.625195] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f12946446bc [ 118.632539] [ 118.634171] Local variable ----buf.i@igmp_group_added created at: [ 118.640499] igmp_group_added+0x147/0xbf0 [ 118.644838] igmp_group_added+0x147/0xbf0 [ 118.648985] ===================================================== [ 118.664309] ===================================================== [ 118.670587] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 118.676073] CPU: 0 PID: 7595 Comm: syz-executor5 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 118.685369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.694822] Call Trace: [ 118.697398] dump_stack+0x1df/0x240 [ 118.701022] kmsan_report+0xfb/0x1e0 [ 118.704779] __msan_warning+0x5f/0xa0 [ 118.708616] bcmp+0x127/0x180 [ 118.711755] __dev_mc_add+0x1fd/0x8e0 [ 118.715706] ? arp_mc_map+0x7c9/0x970 [ 118.719534] dev_mc_add+0x6d/0x80 [ 118.723208] igmp_group_added+0x293/0xbf0 [ 118.727886] ? _raw_spin_unlock_bh+0x4b/0x60 [ 118.732341] ____ip_mc_inc_group+0xe5e/0xf40 [ 118.736762] ip_mc_up+0x1c8/0x3f0 [ 118.740566] inetdev_event+0x1da6/0x1e60 [ 118.744635] ? kmsan_get_metadata+0x116/0x180 [ 118.749153] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 118.754257] ? ipv4_doint_and_flush+0x280/0x280 [ 118.759033] raw_notifier_call_chain+0x130/0x250 [ 118.763836] __dev_notify_flags+0x4ff/0xa60 [ 118.768188] dev_change_flags+0x1d6/0x260 [ 118.772519] dev_ifsioc+0x535/0x11f0 [ 118.776242] dev_ioctl+0x9d2/0x1500 [ 118.780052] sock_do_ioctl+0x3e9/0x5e0 [ 118.783949] sock_ioctl+0x90a/0xde0 [ 118.787606] ? kmsan_get_metadata+0x116/0x180 [ 118.792104] ? sock_poll+0x590/0x590 [ 118.795831] __se_sys_ioctl+0x2c4/0x400 [ 118.799806] ? kmsan_get_metadata+0x116/0x180 [ 118.804343] __x64_sys_ioctl+0x4a/0x70 [ 118.808232] do_syscall_64+0xa2/0x120 [ 118.812027] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 118.817318] RIP: 0033:0x45f5a9 [ 118.820502] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 118.839427] RSP: 002b:00007fabe707b1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 118.847339] RAX: ffffffffffffffda RBX: 000000000051c040 RCX: 000000000045f5a9 [ 118.854727] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 118.862136] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 118.869496] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 118.876777] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007fabe707b6bc [ 118.884072] [ 118.885688] Local variable ----buf.i@igmp_group_added created at: [ 118.891943] igmp_group_added+0x147/0xbf0 [ 118.896100] igmp_group_added+0x147/0xbf0 [ 118.900286] ===================================================== [ 118.906760] ===================================================== [ 118.913188] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 118.918676] CPU: 0 PID: 7595 Comm: syz-executor5 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 118.928114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.937584] Call Trace: [ 118.940200] dump_stack+0x1df/0x240 [ 118.943851] kmsan_report+0xfb/0x1e0 [ 118.947585] __msan_warning+0x5f/0xa0 [ 118.951405] bcmp+0x127/0x180 [ 118.954563] __dev_mc_add+0x1fd/0x8e0 [ 118.958402] ? arp_mc_map+0x7c9/0x970 [ 118.962235] dev_mc_add+0x6d/0x80 [ 118.965710] igmp_group_added+0x293/0xbf0 [ 118.969867] ? _raw_spin_unlock_bh+0x4b/0x60 [ 118.974300] ____ip_mc_inc_group+0xe5e/0xf40 [ 118.978731] ip_mc_up+0x1c8/0x3f0 [ 118.982211] inetdev_event+0x1da6/0x1e60 [ 118.986307] ? kmsan_get_metadata+0x116/0x180 [ 118.990998] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 118.996136] ? ipv4_doint_and_flush+0x280/0x280 [ 119.000862] raw_notifier_call_chain+0x130/0x250 [ 119.005950] __dev_notify_flags+0x4ff/0xa60 [ 119.010374] dev_change_flags+0x1d6/0x260 [ 119.014559] dev_ifsioc+0x535/0x11f0 [ 119.018288] dev_ioctl+0x9d2/0x1500 [ 119.021957] sock_do_ioctl+0x3e9/0x5e0 [ 119.025856] sock_ioctl+0x90a/0xde0 [ 119.029509] ? kmsan_get_metadata+0x116/0x180 [ 119.034536] ? sock_poll+0x590/0x590 [ 119.038271] __se_sys_ioctl+0x2c4/0x400 [ 119.042263] ? kmsan_get_metadata+0x116/0x180 [ 119.046755] __x64_sys_ioctl+0x4a/0x70 [ 119.050643] do_syscall_64+0xa2/0x120 [ 119.054472] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 119.059662] RIP: 0033:0x45f5a9 [ 119.062885] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 119.081878] RSP: 002b:00007fabe707b1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 119.089587] RAX: ffffffffffffffda RBX: 000000000051c040 RCX: 000000000045f5a9 [ 119.096940] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 119.104231] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 119.111520] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 119.118791] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007fabe707b6bc [ 119.126070] [ 119.127697] Local variable ----buf.i@igmp_group_added created at: [ 119.134236] igmp_group_added+0x147/0xbf0 [ 119.138522] igmp_group_added+0x147/0xbf0 [ 119.142717] ===================================================== [ 119.161710] ===================================================== [ 119.167992] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 119.173484] CPU: 0 PID: 7606 Comm: syz-executor1 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 119.182866] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.192438] Call Trace: [ 119.195120] dump_stack+0x1df/0x240 [ 119.198754] kmsan_report+0xfb/0x1e0 [ 119.202906] __msan_warning+0x5f/0xa0 [ 119.206708] bcmp+0x127/0x180 [ 119.209821] __dev_mc_add+0x1fd/0x8e0 [ 119.213626] ? arp_mc_map+0x7c9/0x970 [ 119.217434] dev_mc_add+0x6d/0x80 [ 119.220892] igmp_group_added+0x293/0xbf0 [ 119.225132] ? _raw_spin_unlock_bh+0x4b/0x60 [ 119.229555] ____ip_mc_inc_group+0xe5e/0xf40 [ 119.233972] ip_mc_up+0x1c8/0x3f0 [ 119.237429] inetdev_event+0x1da6/0x1e60 [ 119.241502] ? kmsan_get_metadata+0x116/0x180 [ 119.246001] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 119.251202] ? ipv4_doint_and_flush+0x280/0x280 [ 119.255886] raw_notifier_call_chain+0x130/0x250 [ 119.260647] __dev_notify_flags+0x4ff/0xa60 [ 119.265110] dev_change_flags+0x1d6/0x260 [ 119.269267] dev_ifsioc+0x535/0x11f0 [ 119.272998] dev_ioctl+0x9d2/0x1500 [ 119.276637] sock_do_ioctl+0x3e9/0x5e0 [ 119.280542] sock_ioctl+0x90a/0xde0 [ 119.284174] ? kmsan_get_metadata+0x116/0x180 [ 119.288681] ? sock_poll+0x590/0x590 [ 119.292400] __se_sys_ioctl+0x2c4/0x400 [ 119.296393] ? kmsan_get_metadata+0x116/0x180 [ 119.300896] __x64_sys_ioctl+0x4a/0x70 [ 119.304799] do_syscall_64+0xa2/0x120 [ 119.308603] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 119.313894] RIP: 0033:0x45f5a9 [ 119.317083] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 119.335993] RSP: 002b:00007f9d4aed91a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 119.343797] RAX: ffffffffffffffda RBX: 000000000051c040 RCX: 000000000045f5a9 [ 119.351067] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 119.358337] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 119.365604] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 119.372958] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f9d4aed96bc [ 119.380233] [ 119.381849] Local variable ----buf.i@igmp_group_added created at: [ 119.388254] igmp_group_added+0x147/0xbf0 [ 119.392405] igmp_group_added+0x147/0xbf0 [ 119.396560] ===================================================== [ 119.402934] ===================================================== [ 119.409169] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 119.414656] CPU: 0 PID: 7606 Comm: syz-executor1 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 119.424030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.433389] Call Trace: [ 119.435964] dump_stack+0x1df/0x240 [ 119.439594] kmsan_report+0xfb/0x1e0 [ 119.443310] __msan_warning+0x5f/0xa0 [ 119.447114] bcmp+0x127/0x180 [ 119.450235] __dev_mc_add+0x1fd/0x8e0 [ 119.454133] ? arp_mc_map+0x7c9/0x970 [ 119.457957] dev_mc_add+0x6d/0x80 [ 119.461415] igmp_group_added+0x293/0xbf0 [ 119.465567] ? _raw_spin_unlock_bh+0x4b/0x60 [ 119.470000] ____ip_mc_inc_group+0xe5e/0xf40 [ 119.474416] ip_mc_up+0x1c8/0x3f0 [ 119.477873] inetdev_event+0x1da6/0x1e60 [ 119.481943] ? kmsan_get_metadata+0x116/0x180 [ 119.486474] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 119.491581] ? ipv4_doint_and_flush+0x280/0x280 [ 119.496263] raw_notifier_call_chain+0x130/0x250 [ 119.501123] __dev_notify_flags+0x4ff/0xa60 [ 119.505458] dev_change_flags+0x1d6/0x260 [ 119.509716] dev_ifsioc+0x535/0x11f0 [ 119.513448] dev_ioctl+0x9d2/0x1500 [ 119.517107] sock_do_ioctl+0x3e9/0x5e0 [ 119.521023] sock_ioctl+0x90a/0xde0 [ 119.524658] ? kmsan_get_metadata+0x116/0x180 [ 119.529157] ? sock_poll+0x590/0x590 [ 119.532894] __se_sys_ioctl+0x2c4/0x400 [ 119.536908] ? kmsan_get_metadata+0x116/0x180 [ 119.541410] __x64_sys_ioctl+0x4a/0x70 [ 119.545415] do_syscall_64+0xa2/0x120 [ 119.549224] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 119.554419] RIP: 0033:0x45f5a9 [ 119.557610] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 119.576518] RSP: 002b:00007f9d4aed91a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 119.584534] RAX: ffffffffffffffda RBX: 000000000051c040 RCX: 000000000045f5a9 [ 119.591806] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 119.599162] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 119.606432] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 119.613701] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f9d4aed96bc [ 119.620978] 2021/04/01 20:20:53 executed programs: 12 [ 119.622594] Local variable ----buf.i@igmp_group_added created at: [ 119.628826] igmp_group_added+0x147/0xbf0 [ 119.632979] igmp_group_added+0x147/0xbf0 [ 119.637127] ===================================================== [ 119.737295] ===================================================== [ 119.743577] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 119.749069] CPU: 1 PID: 7591 Comm: syz-executor0 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 119.758453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.767914] Call Trace: [ 119.770512] dump_stack+0x1df/0x240 [ 119.774178] kmsan_report+0xfb/0x1e0 [ 119.777914] __msan_warning+0x5f/0xa0 [ 119.781755] bcmp+0x127/0x180 [ 119.784926] __dev_mc_del+0x181/0x700 [ 119.788765] dev_mc_del+0x6d/0x80 [ 119.792253] igmp6_group_dropped+0x2d7/0x1430 [ 119.796783] ? __msan_instrument_asm_store+0x25/0x130 [ 119.802007] ? __local_bh_enable_ip+0x97/0x1d0 [ 119.806648] __ipv6_dev_mc_dec+0x642/0xb20 [ 119.810959] __ipv6_ifa_notify+0x116d/0x1c00 [ 119.815418] ? kmsan_internal_set_origin+0x85/0xc0 [ 119.820652] ? __msan_instrument_asm_store+0x25/0x130 [ 119.825877] ? __local_bh_enable_ip+0x97/0x1d0 [ 119.830493] addrconf_ifdown+0x1813/0x27a0 [ 119.834745] addrconf_notify+0x1d6/0x5b10 [ 119.838906] ? __msan_get_context_state+0x9/0x20 [ 119.843682] ? rcu_all_qs+0x23/0x240 [ 119.847401] ? __local_bh_enable_ip+0x97/0x1d0 [ 119.852006] ? kmsan_get_metadata+0x116/0x180 [ 119.856532] ? kmsan_get_metadata+0x116/0x180 [ 119.861036] ? __msan_instrument_asm_store+0x25/0x130 [ 119.866348] ? kmsan_get_metadata+0x116/0x180 [ 119.870852] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 119.875959] ? kmsan_get_metadata+0x116/0x180 [ 119.880457] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 119.885562] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 119.890937] ? ip6mr_device_event+0x341/0x3b0 [ 119.895449] ? kmsan_get_metadata+0x116/0x180 [ 119.899950] ? dev_forward_change+0xbd0/0xbd0 [ 119.904456] raw_notifier_call_chain+0x130/0x250 [ 119.909222] dev_close_many+0x670/0xb10 [ 119.913401] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 119.918610] rollback_registered_many+0x896/0x2b00 [ 119.923649] ? kmsan_get_metadata+0x116/0x180 [ 119.928247] unregister_netdevice_queue+0x578/0xac0 [ 119.934155] __tun_detach+0x23b2/0x2d50 [ 119.938150] tun_chr_close+0xda/0x1c0 [ 119.941959] ? tun_chr_open+0x700/0x700 [ 119.945938] __fput+0x5c6/0xcd0 [ 119.949231] ____fput+0x37/0x40 [ 119.952518] ? fput_many+0x2a0/0x2a0 [ 119.956240] task_work_run+0x14d/0x260 [ 119.960229] get_signal+0x2f7a/0x3150 [ 119.964044] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 119.969435] ? netdev_run_todo+0x15ce/0x1620 [ 119.973859] ? kmsan_get_metadata+0x116/0x180 [ 119.978374] ? __tun_chr_ioctl+0x73f/0x78d0 [ 119.982717] ? switch_to_extra+0x77/0x180 [ 119.986892] ? kmsan_internal_set_origin+0x85/0xc0 [ 119.992277] ? __msan_poison_alloca+0xe9/0x110 [ 119.996888] arch_do_signal_or_restart+0xa5/0xe40 [ 120.001745] ? fput+0x22f/0x270 [ 120.005036] ? kmsan_get_metadata+0x116/0x180 [ 120.009537] exit_to_user_mode_prepare+0x2c2/0x4e0 [ 120.014477] syscall_exit_to_user_mode+0x35/0x60 [ 120.019241] do_syscall_64+0xc8/0x120 [ 120.023043] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 120.028238] RIP: 0033:0x45f5a9 [ 120.031429] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 120.050428] RSP: 002b:00007f12946441a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 120.058146] RAX: ffffffffffffffef RBX: 000000000051c040 RCX: 000000000045f5a9 [ 120.065420] RDX: 0000000020000000 RSI: 00000000400454ca RDI: 0000000000000005 [ 120.072790] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 120.080061] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 120.087333] R13: 00000000004ebc10 R14: 00000000004ade1d R15: 00007f12946446bc [ 120.094612] [ 120.096230] Local variable ----buf@igmp6_group_dropped created at: [ 120.102535] igmp6_group_dropped+0xa1/0x1430 [ 120.106952] igmp6_group_dropped+0xa1/0x1430 [ 120.111537] ===================================================== [ 120.118038] ===================================================== [ 120.124282] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 120.129825] CPU: 1 PID: 7591 Comm: syz-executor0 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 120.139316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 120.148713] Call Trace: [ 120.151307] dump_stack+0x1df/0x240 [ 120.154961] kmsan_report+0xfb/0x1e0 [ 120.158701] __msan_warning+0x5f/0xa0 [ 120.162522] bcmp+0x127/0x180 [ 120.165664] __dev_mc_del+0x181/0x700 [ 120.169497] dev_mc_del+0x6d/0x80 [ 120.172963] igmp6_group_dropped+0x2d7/0x1430 [ 120.177529] ? __msan_instrument_asm_store+0x25/0x130 [ 120.182735] ? __local_bh_enable_ip+0x97/0x1d0 [ 120.187330] __ipv6_dev_mc_dec+0x642/0xb20 [ 120.191571] __ipv6_ifa_notify+0x116d/0x1c00 [ 120.195991] ? kmsan_internal_set_origin+0x85/0xc0 [ 120.200933] ? __msan_instrument_asm_store+0x25/0x130 [ 120.206136] ? __local_bh_enable_ip+0x97/0x1d0 [ 120.210728] addrconf_ifdown+0x1813/0x27a0 [ 120.214978] addrconf_notify+0x1d6/0x5b10 [ 120.219136] ? __msan_get_context_state+0x9/0x20 [ 120.223901] ? rcu_all_qs+0x23/0x240 [ 120.227706] ? __local_bh_enable_ip+0x97/0x1d0 [ 120.232510] ? kmsan_get_metadata+0x116/0x180 [ 120.237009] ? kmsan_get_metadata+0x116/0x180 [ 120.241512] ? __msan_instrument_asm_store+0x25/0x130 [ 120.246714] ? kmsan_get_metadata+0x116/0x180 [ 120.251214] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 120.256319] ? kmsan_get_metadata+0x116/0x180 [ 120.260817] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 120.265925] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 120.271300] ? ip6mr_device_event+0x341/0x3b0 [ 120.275798] ? kmsan_get_metadata+0x116/0x180 [ 120.280314] ? dev_forward_change+0xbd0/0xbd0 [ 120.284820] raw_notifier_call_chain+0x130/0x250 [ 120.289585] dev_close_many+0x670/0xb10 [ 120.293563] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 120.298680] rollback_registered_many+0x896/0x2b00 [ 120.303791] ? kmsan_get_metadata+0x116/0x180 [ 120.308299] unregister_netdevice_queue+0x578/0xac0 [ 120.313324] __tun_detach+0x23b2/0x2d50 [ 120.317314] tun_chr_close+0xda/0x1c0 [ 120.321121] ? tun_chr_open+0x700/0x700 [ 120.325096] __fput+0x5c6/0xcd0 [ 120.328391] ____fput+0x37/0x40 [ 120.331690] ? fput_many+0x2a0/0x2a0 [ 120.335411] task_work_run+0x14d/0x260 [ 120.339312] get_signal+0x2f7a/0x3150 [ 120.343135] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 120.348510] ? netdev_run_todo+0x15ce/0x1620 [ 120.352936] ? kmsan_get_metadata+0x116/0x180 [ 120.357442] ? __tun_chr_ioctl+0x73f/0x78d0 [ 120.361794] ? switch_to_extra+0x77/0x180 [ 120.365956] ? kmsan_internal_set_origin+0x85/0xc0 [ 120.370899] ? __msan_poison_alloca+0xe9/0x110 [ 120.375490] arch_do_signal_or_restart+0xa5/0xe40 [ 120.380344] ? fput+0x22f/0x270 [ 120.383631] ? kmsan_get_metadata+0x116/0x180 [ 120.388157] exit_to_user_mode_prepare+0x2c2/0x4e0 [ 120.393186] syscall_exit_to_user_mode+0x35/0x60 [ 120.397960] do_syscall_64+0xc8/0x120 [ 120.401763] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 120.406958] RIP: 0033:0x45f5a9 [ 120.410149] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 120.429061] RSP: 002b:00007f12946441a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 120.436952] RAX: ffffffffffffffef RBX: 000000000051c040 RCX: 000000000045f5a9 [ 120.444219] RDX: 0000000020000000 RSI: 00000000400454ca RDI: 0000000000000005 [ 120.451661] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 120.458928] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 120.466284] R13: 00000000004ebc10 R14: 00000000004ade1d R15: 00007f12946446bc [ 120.473558] [ 120.475173] Local variable ----buf@igmp6_group_dropped created at: [ 120.481481] igmp6_group_dropped+0xa1/0x1430 [ 120.485897] igmp6_group_dropped+0xa1/0x1430 [ 120.490305] ===================================================== [ 120.629247] ===================================================== [ 120.635707] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 120.641190] CPU: 0 PID: 7590 Comm: syz-executor5 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 120.650483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 120.660133] Call Trace: [ 120.662719] dump_stack+0x1df/0x240 [ 120.666430] kmsan_report+0xfb/0x1e0 [ 120.670228] __msan_warning+0x5f/0xa0 [ 120.674042] bcmp+0x127/0x180 [ 120.677183] __dev_mc_del+0x181/0x700 [ 120.681247] dev_mc_del+0x6d/0x80 [ 120.684777] igmp6_group_dropped+0x2d7/0x1430 [ 120.689273] ? __msan_instrument_asm_store+0x25/0x130 [ 120.694477] ? __local_bh_enable_ip+0x97/0x1d0 [ 120.699104] __ipv6_dev_mc_dec+0x642/0xb20 [ 120.703607] __ipv6_ifa_notify+0x116d/0x1c00 [ 120.708058] ? kmsan_internal_set_origin+0x85/0xc0 [ 120.713051] ? __msan_instrument_asm_store+0x25/0x130 [ 120.718618] ? __local_bh_enable_ip+0x97/0x1d0 [ 120.723298] addrconf_ifdown+0x1813/0x27a0 [ 120.727542] addrconf_notify+0x1d6/0x5b10 [ 120.731714] ? __msan_get_context_state+0x9/0x20 [ 120.736482] ? rcu_all_qs+0x23/0x240 [ 120.740198] ? __local_bh_enable_ip+0x97/0x1d0 [ 120.744955] ? kmsan_get_metadata+0x116/0x180 [ 120.749672] ? kmsan_get_metadata+0x116/0x180 [ 120.754188] ? __msan_instrument_asm_store+0x25/0x130 [ 120.759411] ? kmsan_get_metadata+0x116/0x180 [ 120.763904] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 120.769016] ? kmsan_get_metadata+0x116/0x180 [ 120.773545] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 120.778686] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 120.784067] ? ip6mr_device_event+0x341/0x3b0 [ 120.788581] ? kmsan_get_metadata+0x116/0x180 [ 120.793268] ? dev_forward_change+0xbd0/0xbd0 [ 120.797891] raw_notifier_call_chain+0x130/0x250 [ 120.802764] dev_close_many+0x670/0xb10 [ 120.806844] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 120.811954] rollback_registered_many+0x896/0x2b00 [ 120.816919] ? kmsan_get_metadata+0x116/0x180 [ 120.821911] unregister_netdevice_queue+0x578/0xac0 [ 120.827324] __tun_detach+0x23b2/0x2d50 [ 120.831322] tun_chr_close+0xda/0x1c0 [ 120.835642] ? tun_chr_open+0x700/0x700 [ 120.839696] __fput+0x5c6/0xcd0 [ 120.843257] ____fput+0x37/0x40 [ 120.846834] ? fput_many+0x2a0/0x2a0 [ 120.850694] task_work_run+0x14d/0x260 [ 120.854599] get_signal+0x2f7a/0x3150 [ 120.858420] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 120.863790] ? netdev_run_todo+0x15ce/0x1620 [ 120.868299] ? kmsan_get_metadata+0x116/0x180 [ 120.872893] ? __tun_chr_ioctl+0x73f/0x78d0 [ 120.877810] ? kmsan_internal_set_origin+0x85/0xc0 [ 120.882871] ? __msan_poison_alloca+0xe9/0x110 [ 120.887482] arch_do_signal_or_restart+0xa5/0xe40 [ 120.892620] ? fput+0x22f/0x270 [ 120.895920] ? kmsan_get_metadata+0x116/0x180 [ 120.900619] exit_to_user_mode_prepare+0x2c2/0x4e0 [ 120.905697] syscall_exit_to_user_mode+0x35/0x60 [ 120.910460] do_syscall_64+0xc8/0x120 [ 120.914260] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 120.919626] RIP: 0033:0x45f5a9 [ 120.922940] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 120.942174] RSP: 002b:00007fabe709c1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 120.949991] RAX: ffffffffffffffef RBX: 000000000051bfa0 RCX: 000000000045f5a9 [ 120.957296] RDX: 0000000020000000 RSI: 00000000400454ca RDI: 0000000000000005 [ 120.964559] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 120.971997] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 120.979720] R13: 00000000004ebc10 R14: 00000000004ade1d R15: 00007fabe709c6bc [ 120.986999] [ 120.988648] Local variable ----buf@igmp6_group_dropped created at: [ 120.995153] igmp6_group_dropped+0xa1/0x1430 [ 120.999720] igmp6_group_dropped+0xa1/0x1430 [ 121.004128] ===================================================== [ 121.010656] ===================================================== [ 121.016896] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 121.022383] CPU: 0 PID: 7590 Comm: syz-executor5 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 121.031753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.041133] Call Trace: [ 121.043796] dump_stack+0x1df/0x240 [ 121.047421] kmsan_report+0xfb/0x1e0 [ 121.051160] __msan_warning+0x5f/0xa0 [ 121.055248] bcmp+0x127/0x180 [ 121.058372] __dev_mc_del+0x181/0x700 [ 121.062189] dev_mc_del+0x6d/0x80 [ 121.065751] igmp6_group_dropped+0x2d7/0x1430 [ 121.070289] ? __msan_instrument_asm_store+0x25/0x130 [ 121.075531] ? __local_bh_enable_ip+0x97/0x1d0 [ 121.080114] __ipv6_dev_mc_dec+0x642/0xb20 [ 121.084357] __ipv6_ifa_notify+0x116d/0x1c00 [ 121.088784] ? kmsan_internal_set_origin+0x85/0xc0 [ 121.093735] ? __msan_instrument_asm_store+0x25/0x130 [ 121.098930] ? __local_bh_enable_ip+0x97/0x1d0 [ 121.103538] addrconf_ifdown+0x1813/0x27a0 [ 121.107795] addrconf_notify+0x1d6/0x5b10 [ 121.111965] ? __msan_get_context_state+0x9/0x20 [ 121.116715] ? rcu_all_qs+0x23/0x240 [ 121.120431] ? __local_bh_enable_ip+0x97/0x1d0 [ 121.125033] ? kmsan_get_metadata+0x116/0x180 [ 121.129554] ? kmsan_get_metadata+0x116/0x180 [ 121.134156] ? __msan_instrument_asm_store+0x25/0x130 [ 121.139365] ? kmsan_get_metadata+0x116/0x180 [ 121.143867] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 121.149109] ? kmsan_get_metadata+0x116/0x180 [ 121.153811] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 121.159065] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 121.164580] ? ip6mr_device_event+0x341/0x3b0 [ 121.169434] ? kmsan_get_metadata+0x116/0x180 [ 121.176210] ? dev_forward_change+0xbd0/0xbd0 [ 121.180873] raw_notifier_call_chain+0x130/0x250 [ 121.185659] dev_close_many+0x670/0xb10 [ 121.189673] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 121.194811] rollback_registered_many+0x896/0x2b00 [ 121.199773] ? kmsan_get_metadata+0x116/0x180 [ 121.204413] unregister_netdevice_queue+0x578/0xac0 [ 121.209510] __tun_detach+0x23b2/0x2d50 [ 121.213501] tun_chr_close+0xda/0x1c0 [ 121.217405] ? tun_chr_open+0x700/0x700 [ 121.221459] __fput+0x5c6/0xcd0 [ 121.224749] ____fput+0x37/0x40 [ 121.228034] ? fput_many+0x2a0/0x2a0 [ 121.231792] task_work_run+0x14d/0x260 [ 121.235685] get_signal+0x2f7a/0x3150 [ 121.239507] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 121.244874] ? netdev_run_todo+0x15ce/0x1620 [ 121.249309] ? kmsan_get_metadata+0x116/0x180 [ 121.253838] ? __tun_chr_ioctl+0x73f/0x78d0 [ 121.258174] ? kmsan_internal_set_origin+0x85/0xc0 [ 121.263120] ? __msan_poison_alloca+0xe9/0x110 [ 121.267725] arch_do_signal_or_restart+0xa5/0xe40 [ 121.272707] ? fput+0x22f/0x270 [ 121.276067] ? kmsan_get_metadata+0x116/0x180 [ 121.280573] exit_to_user_mode_prepare+0x2c2/0x4e0 [ 121.285511] syscall_exit_to_user_mode+0x35/0x60 [ 121.290278] do_syscall_64+0xc8/0x120 [ 121.294257] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 121.299538] RIP: 0033:0x45f5a9 [ 121.302748] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 121.321953] RSP: 002b:00007fabe709c1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 121.329777] RAX: ffffffffffffffef RBX: 000000000051bfa0 RCX: 000000000045f5a9 [ 121.337069] RDX: 0000000020000000 RSI: 00000000400454ca RDI: 0000000000000005 [ 121.344365] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 121.351659] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 121.359034] R13: 00000000004ebc10 R14: 00000000004ade1d R15: 00007fabe709c6bc [ 121.367027] [ 121.368685] Local variable ----buf@igmp6_group_dropped created at: [ 121.375990] igmp6_group_dropped+0xa1/0x1430 [ 121.380431] igmp6_group_dropped+0xa1/0x1430 [ 121.384867] ===================================================== [ 121.531933] ===================================================== [ 121.538287] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 121.543753] CPU: 0 PID: 7614 Comm: syz-executor1 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 121.553042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.562409] Call Trace: [ 121.565000] dump_stack+0x1df/0x240 [ 121.568662] kmsan_report+0xfb/0x1e0 [ 121.572376] __msan_warning+0x5f/0xa0 [ 121.576192] bcmp+0x127/0x180 [ 121.579310] __dev_mc_del+0x181/0x700 [ 121.583253] dev_mc_del+0x6d/0x80 [ 121.586747] igmp6_group_dropped+0x2d7/0x1430 [ 121.591241] ? __msan_instrument_asm_store+0x25/0x130 [ 121.596574] ? __local_bh_enable_ip+0x97/0x1d0 [ 121.601208] __ipv6_dev_mc_dec+0x642/0xb20 [ 121.605487] __ipv6_ifa_notify+0x116d/0x1c00 [ 121.609933] ? kmsan_internal_set_origin+0x85/0xc0 [ 121.615010] ? __msan_instrument_asm_store+0x25/0x130 [ 121.620215] ? __local_bh_enable_ip+0x97/0x1d0 [ 121.624975] addrconf_ifdown+0x1813/0x27a0 [ 121.629225] addrconf_notify+0x1d6/0x5b10 [ 121.633418] ? __msan_get_context_state+0x9/0x20 [ 121.638191] ? rcu_all_qs+0x23/0x240 [ 121.641902] ? __local_bh_enable_ip+0x97/0x1d0 [ 121.646603] ? kmsan_get_metadata+0x116/0x180 [ 121.651144] ? kmsan_get_metadata+0x116/0x180 [ 121.655636] ? __msan_instrument_asm_store+0x25/0x130 [ 121.660834] ? kmsan_get_metadata+0x116/0x180 [ 121.665345] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 121.670464] ? kmsan_get_metadata+0x116/0x180 [ 121.674969] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 121.680092] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 121.685458] ? ip6mr_device_event+0x341/0x3b0 [ 121.689977] ? kmsan_get_metadata+0x116/0x180 [ 121.694906] ? dev_forward_change+0xbd0/0xbd0 [ 121.699432] raw_notifier_call_chain+0x130/0x250 [ 121.704518] dev_close_many+0x670/0xb10 [ 121.708520] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 121.713628] rollback_registered_many+0x896/0x2b00 [ 121.718568] ? kmsan_get_metadata+0x116/0x180 [ 121.723066] unregister_netdevice_queue+0x578/0xac0 [ 121.728106] __tun_detach+0x23b2/0x2d50 [ 121.732093] tun_chr_close+0xda/0x1c0 [ 121.735910] ? tun_chr_open+0x700/0x700 [ 121.739897] __fput+0x5c6/0xcd0 [ 121.743181] ____fput+0x37/0x40 [ 121.746488] ? fput_many+0x2a0/0x2a0 [ 121.750330] task_work_run+0x14d/0x260 [ 121.754256] get_signal+0x2f7a/0x3150 [ 121.758060] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 121.763560] ? netdev_run_todo+0x15ce/0x1620 [ 121.767986] ? kmsan_get_metadata+0x116/0x180 [ 121.772593] ? __tun_chr_ioctl+0x73f/0x78d0 [ 121.777088] ? kmsan_internal_set_origin+0x85/0xc0 [ 121.782287] ? __msan_poison_alloca+0xe9/0x110 [ 121.786876] arch_do_signal_or_restart+0xa5/0xe40 [ 121.791742] ? fput+0x22f/0x270 [ 121.795023] ? kmsan_get_metadata+0x116/0x180 [ 121.799526] exit_to_user_mode_prepare+0x2c2/0x4e0 [ 121.804456] syscall_exit_to_user_mode+0x35/0x60 [ 121.809211] do_syscall_64+0xc8/0x120 [ 121.813009] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 121.818195] RIP: 0033:0x45f5a9 [ 121.821384] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 121.840324] RSP: 002b:00007f9d4ae971a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 121.848186] RAX: fffffffffffffff0 RBX: 000000000051c180 RCX: 000000000045f5a9 [ 121.855490] RDX: 000000000000030a RSI: 00000000400454cd RDI: 0000000000000005 [ 121.862772] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 121.870054] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 121.877329] R13: 00000000004ebc40 R14: 00000000004ade41 R15: 00007f9d4ae976bc [ 121.884964] [ 121.886578] Local variable ----buf@igmp6_group_dropped created at: [ 121.892881] igmp6_group_dropped+0xa1/0x1430 [ 121.897300] igmp6_group_dropped+0xa1/0x1430 [ 121.901922] ===================================================== [ 121.908360] ===================================================== [ 121.914723] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 121.920208] CPU: 0 PID: 7614 Comm: syz-executor1 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 121.929506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.938877] Call Trace: [ 121.941471] dump_stack+0x1df/0x240 [ 121.945133] kmsan_report+0xfb/0x1e0 [ 121.948872] __msan_warning+0x5f/0xa0 [ 121.953213] bcmp+0x127/0x180 [ 121.956347] __dev_mc_del+0x181/0x700 [ 121.960187] dev_mc_del+0x6d/0x80 [ 121.963670] igmp6_group_dropped+0x2d7/0x1430 [ 121.968200] ? __msan_instrument_asm_store+0x25/0x130 [ 121.973426] ? __local_bh_enable_ip+0x97/0x1d0 [ 121.978045] __ipv6_dev_mc_dec+0x642/0xb20 [ 121.982311] __ipv6_ifa_notify+0x116d/0x1c00 [ 121.986756] ? kmsan_internal_set_origin+0x85/0xc0 [ 121.992066] ? __msan_instrument_asm_store+0x25/0x130 [ 121.997279] ? __local_bh_enable_ip+0x97/0x1d0 [ 122.001981] addrconf_ifdown+0x1813/0x27a0 [ 122.006262] addrconf_notify+0x1d6/0x5b10 [ 122.010447] ? __msan_get_context_state+0x9/0x20 [ 122.015229] ? rcu_all_qs+0x23/0x240 [ 122.018971] ? __local_bh_enable_ip+0x97/0x1d0 [ 122.023592] ? kmsan_get_metadata+0x116/0x180 [ 122.028132] ? kmsan_get_metadata+0x116/0x180 [ 122.032647] ? __msan_instrument_asm_store+0x25/0x130 [ 122.037869] ? kmsan_get_metadata+0x116/0x180 [ 122.042371] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 122.047477] ? kmsan_get_metadata+0x116/0x180 [ 122.052177] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 122.057497] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 122.062886] ? ip6mr_device_event+0x341/0x3b0 [ 122.067384] ? kmsan_get_metadata+0x116/0x180 [ 122.071898] ? dev_forward_change+0xbd0/0xbd0 [ 122.076501] raw_notifier_call_chain+0x130/0x250 [ 122.081260] dev_close_many+0x670/0xb10 [ 122.085231] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 122.090424] rollback_registered_many+0x896/0x2b00 [ 122.095491] ? kmsan_get_metadata+0x116/0x180 [ 122.100023] unregister_netdevice_queue+0x578/0xac0 [ 122.105079] __tun_detach+0x23b2/0x2d50 [ 122.109149] tun_chr_close+0xda/0x1c0 [ 122.112954] ? tun_chr_open+0x700/0x700 [ 122.116946] __fput+0x5c6/0xcd0 [ 122.120435] ____fput+0x37/0x40 [ 122.123752] ? fput_many+0x2a0/0x2a0 [ 122.127504] task_work_run+0x14d/0x260 [ 122.131399] get_signal+0x2f7a/0x3150 [ 122.135225] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 122.140634] ? netdev_run_todo+0x15ce/0x1620 [ 122.145061] ? kmsan_get_metadata+0x116/0x180 [ 122.149576] ? __tun_chr_ioctl+0x73f/0x78d0 [ 122.153897] ? kmsan_internal_set_origin+0x85/0xc0 [ 122.158837] ? __msan_poison_alloca+0xe9/0x110 [ 122.163600] arch_do_signal_or_restart+0xa5/0xe40 [ 122.168466] ? fput+0x22f/0x270 [ 122.171763] ? kmsan_get_metadata+0x116/0x180 [ 122.176262] exit_to_user_mode_prepare+0x2c2/0x4e0 [ 122.181210] syscall_exit_to_user_mode+0x35/0x60 [ 122.185984] do_syscall_64+0xc8/0x120 [ 122.189787] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 122.194998] RIP: 0033:0x45f5a9 [ 122.198363] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 122.217283] RSP: 002b:00007f9d4ae971a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 122.224999] RAX: fffffffffffffff0 RBX: 000000000051c180 RCX: 000000000045f5a9 [ 122.232314] RDX: 000000000000030a RSI: 00000000400454cd RDI: 0000000000000005 [ 122.239614] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 122.247165] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 122.254459] R13: 00000000004ebc40 R14: 00000000004ade41 R15: 00007f9d4ae976bc [ 122.261839] [ 122.263454] Local variable ----buf@igmp6_group_dropped created at: [ 122.269888] igmp6_group_dropped+0xa1/0x1430 [ 122.274364] igmp6_group_dropped+0xa1/0x1430 [ 122.278800] ===================================================== [ 122.365055] ===================================================== [ 122.371340] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 122.376840] CPU: 1 PID: 7636 Comm: syz-executor4 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 122.386247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.395750] Call Trace: [ 122.398369] dump_stack+0x1df/0x240 [ 122.402051] kmsan_report+0xfb/0x1e0 [ 122.405987] __msan_warning+0x5f/0xa0 [ 122.409816] bcmp+0x127/0x180 [ 122.412954] __dev_mc_add+0x1fd/0x8e0 [ 122.416790] ? arp_mc_map+0x7c9/0x970 [ 122.420626] dev_mc_add+0x6d/0x80 [ 122.424105] igmp_group_added+0x293/0xbf0 [ 122.428275] ? _raw_spin_unlock_bh+0x4b/0x60 [ 122.432974] ____ip_mc_inc_group+0xe5e/0xf40 [ 122.437416] ip_mc_up+0x1c8/0x3f0 [ 122.440996] inetdev_event+0x1da6/0x1e60 [ 122.445099] ? kmsan_get_metadata+0x116/0x180 [ 122.449638] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 122.454876] ? ipv4_doint_and_flush+0x280/0x280 [ 122.459572] raw_notifier_call_chain+0x130/0x250 [ 122.464367] __dev_notify_flags+0x4ff/0xa60 [ 122.468707] dev_change_flags+0x1d6/0x260 [ 122.472887] dev_ifsioc+0x535/0x11f0 [ 122.476616] dev_ioctl+0x9d2/0x1500 [ 122.480259] sock_do_ioctl+0x3e9/0x5e0 [ 122.484185] sock_ioctl+0x90a/0xde0 [ 122.487825] ? kmsan_get_metadata+0x116/0x180 [ 122.492322] ? sock_poll+0x590/0x590 [ 122.496044] __se_sys_ioctl+0x2c4/0x400 [ 122.500025] ? kmsan_get_metadata+0x116/0x180 [ 122.504523] __x64_sys_ioctl+0x4a/0x70 [ 122.508432] do_syscall_64+0xa2/0x120 [ 122.512234] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 122.517433] RIP: 0033:0x45f5a9 [ 122.520629] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 122.539631] RSP: 002b:00007f4f3e3121a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 122.547542] RAX: ffffffffffffffda RBX: 000000000051c040 RCX: 000000000045f5a9 [ 122.554814] RDX: 00000000200000c0 RSI: 0000000000008914 RDI: 0000000000000004 [ 122.562082] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 122.569350] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 122.577142] R13: 00000000004ecf90 R14: 00000000004aedd2 R15: 00007f4f3e3126bc [ 122.584419] [ 122.586036] Local variable ----buf.i@igmp_group_added created at: [ 122.592261] igmp_group_added+0x147/0xbf0 [ 122.596502] igmp_group_added+0x147/0xbf0 [ 122.600653] ===================================================== [ 122.607148] ===================================================== [ 122.613397] BUG: KMSAN: uninit-value in bcmp+0x127/0x180 [ 122.618884] CPU: 1 PID: 7636 Comm: syz-executor4 Tainted: G B 5.11.0-rc7-syzkaller #0 [ 122.628185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.637561] Call Trace: [ 122.640153] dump_stack+0x1df/0x240 [ 122.643803] kmsan_report+0xfb/0x1e0 [ 122.647543] __msan_warning+0x5f/0xa0 [ 122.651474] bcmp+0x127/0x180 [ 122.654623] __dev_mc_add+0x1fd/0x8e0 [ 122.658540] ? arp_mc_map+0x7c9/0x970 [ 122.662359] dev_mc_add+0x6d/0x80