[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 17.385683] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 22.587466] random: sshd: uninitialized urandom read (32 bytes read) [ 23.172685] random: sshd: uninitialized urandom read (32 bytes read) [ 23.957702] random: sshd: uninitialized urandom read (32 bytes read) [ 24.093311] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.21' (ECDSA) to the list of known hosts. [ 29.491813] random: sshd: uninitialized urandom read (32 bytes read) [ 29.574716] IPVS: ftp: loaded support on port[0] = 21 [ 29.666511] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.672876] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.679817] device bridge_slave_0 entered promiscuous mode [ 29.692652] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.699011] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.705874] device bridge_slave_1 entered promiscuous mode [ 29.718688] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 29.732901] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 29.763987] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 29.778748] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 29.823789] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 29.830848] team0: Port device team_slave_0 added [ 29.843163] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 29.850271] team0: Port device team_slave_1 added [ 29.862843] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 29.877485] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 29.892413] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 29.907280] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported [ 29.990273] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.996719] bridge0: port 2(bridge_slave_1) entered forwarding state [ 30.003371] bridge0: port 1(bridge_slave_0) entered blocking state [ 30.009743] bridge0: port 1(bridge_slave_0) entered forwarding state RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument [ 30.313220] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 30.319314] 8021q: adding VLAN 0 to HW filter on device bond0 [ 30.351160] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 30.386560] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 30.394716] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 30.423715] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 30.429836] 8021q: adding VLAN 0 to HW filter on device team0 executing program executing program [ 30.632223] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.521782] ------------[ cut here ]------------ [ 32.526572] kernel BUG at net/ipv6/route.c:1252! [ 32.531391] invalid opcode: 0000 [#1] SMP KASAN [ 32.533060] ================================================================== [ 32.536065] CPU: 0 PID: 4823 Comm: syz-executor609 Not tainted 4.18.0-rc5-next-20180718+ #10 [ 32.543419] BUG: KASAN: use-after-free in dst_release+0x2a/0xb0 [ 32.551961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.557993] Write of size 4 at addr ffff8801d2cb1e40 by task syz-executor609/4822 [ 32.557999] [ 32.567385] RIP: 0010:ip6_pol_route+0xa34/0x13d0 [ 32.574983] CPU: 1 PID: 4822 Comm: syz-executor609 Not tainted 4.18.0-rc5-next-20180718+ #10 [ 32.574993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.576602] Code: 31 [ 32.581349] Call Trace: [ 32.589901] e4 [ 32.599240] [ 32.601627] e8 [ 32.604198] dump_stack+0x1c9/0x2b4 [ 32.606051] af [ 32.608193] ? dump_stack_print_info.cold.2+0x52/0x52 [ 32.610053] 01 [ 32.613661] ? printk+0xa7/0xcf [ 32.613677] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 32.615535] 15 [ 32.620711] ? dst_release+0x2a/0xb0 [ 32.622568] fb [ 32.625842] print_address_description+0x6c/0x20b [ 32.630562] 4c [ 32.632436] ? dst_release+0x2a/0xb0 [ 32.636127] 89 [ 32.637999] kasan_report.cold.7+0x242/0x30d [ 32.643080] e0 [ 32.644984] check_memory_region+0x13e/0x1b0 [ 32.648664] f0 [ 32.650540] kasan_check_write+0x14/0x20 [ 32.654913] 4c [ 32.656799] dst_release+0x2a/0xb0 [ 32.661174] 0f [ 32.663051] inet_sock_destruct+0x6ae/0x9c0 [ 32.667087] b1 [ 32.668964] ? kernel_text_address+0x79/0xf0 [ 32.672474] 33 [ 32.674348] ? ipv4_mib_init_net+0x580/0x580 [ 32.678638] 31 [ 32.680513] ? unwind_get_return_address+0x61/0xa0 [ 32.684902] ff [ 32.686777] ? __save_stack_trace+0x8d/0xf0 [ 32.691151] 49 [ 32.693036] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 32.697930] 89 [ 32.699833] ? udp_rmem_release+0x323/0x490 [ 32.704118] c4 [ 32.706007] udp_destruct_sock+0x350/0x4a0 [ 32.711506] 48 [ 32.713377] ? dst_destroy+0x267/0x3c0 [ 32.717662] 89 [ 32.719526] ? dst_destroy_rcu+0x16/0x20 [ 32.719540] ? rcu_process_callbacks+0xf98/0x2860 [ 32.723740] c6 [ 32.725622] ? udp_skb_dtor_locked+0x70/0x70 [ 32.729474] e8 [ 32.731345] l2tp_tunnel_destruct+0x174/0x290 [ 32.735370] da [ 32.740196] ? l2tp_build_l2tpv3_header+0x360/0x360 [ 32.742067] 97 [ 32.746461] __sk_destruct+0x107/0xa60 [ 32.748316] d6 [ 32.752802] ? lock_acquire+0x1e4/0x540 [ 32.754660] fa [ 32.759658] ? sock_warn_obsolete_bsdism+0xb0/0xb0 [ 32.761602] 4d [ 32.765470] ? lock_downgrade+0x8f0/0x8f0 [ 32.767325] 85 [ 32.771286] ? kasan_check_read+0x11/0x20 [ 32.773138] e4 [ 32.778056] ? do_raw_spin_unlock+0xa7/0x2f0 [ 32.779913] 0f [ 32.784042] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 32.785895] 84 [ 32.790027] ? lock_acquire+0x1e4/0x540 [ 32.791883] d0 [ 32.796275] ? rcu_process_callbacks+0x1085/0x2860 [ 32.798129] f9 [ 32.802692] ? trace_hardirqs_on+0xd/0x10 [ 32.804547] ff [ 32.808509] ? lock_release+0xa30/0xa30 [ 32.810364] ff [ 32.815276] ? debug_stats_show+0x100/0x100 [ 32.817132] e8 [ 32.821273] ? trace_hardirqs_on+0xd/0x10 [ 32.823128] 9c [ 32.827091] ? kmem_cache_free+0x22e/0x2d0 [ 32.828943] 96 [ 32.833265] ? dst_destroy+0x283/0x3c0 [ 32.835118] d6 [ 32.839335] ? sock_warn_obsolete_bsdism+0xb0/0xb0 [ 32.841190] fa [ 32.845413] rcu_process_callbacks+0xf98/0x2860 [ 32.847268] <0f> [ 32.851138] ? call_rcu_sched+0x20/0x20 [ 32.852993] 0b [ 32.857910] ? trace_hardirqs_off+0xd/0x10 [ 32.859762] e8 [ 32.864421] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 32.866480] 95 [ 32.870442] ? lock_acquire+0x1e4/0x540 [ 32.872298] 96 [ 32.876511] ? __run_timers+0xa09/0xc70 [ 32.878387] d6 [ 32.883476] ? kasan_check_read+0x11/0x20 [ 32.885328] fa [ 32.889282] ? do_raw_spin_unlock+0xa7/0x2f0 [ 32.891139] e8 [ 32.895104] ? kasan_check_write+0x14/0x20 [ 32.896964] 00 [ 32.901091] ? trace_hardirqs_on+0xd/0x10 [ 32.902951] d0 [ 32.907346] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.909198] c0 [ 32.913409] ? __run_timers+0xa37/0xc70 [ 32.915266] fa [ 32.919398] ? __bpf_trace_timer_expire_entry+0x30/0x30 [ 32.921251] 31 [ 32.925732] ? pvclock_read_flags+0x160/0x160 [ 32.927672] ff [ 32.932556] ? hrtimer_start_range_ns+0xd20/0xd20 [ 32.934411] 89 [ 32.939755] ? kvm_clock_read+0x25/0x30 [ 32.941606] c6 [ 32.946083] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.947973] 88 [ 32.952798] ? ktime_get+0x2e1/0x440 [ 32.954652] 85 [ 32.958606] ? ktime_get_raw_ts64+0x4f0/0x4f0 [ 32.960462] a0 [ 32.965460] ? lock_downgrade+0x8f0/0x8f0 [ 32.967323] fd [ 32.971017] ? ktime_get_update_offsets_now+0x3db/0x5d0 [ 32.972873] ff [ 32.977350] ? kasan_check_read+0x11/0x20 [ 32.979203] ff [ 32.983331] ? rcu_nmi_exit+0xe0/0x2d0 [ 32.990540] ? rcu_idle_enter+0x480/0x480 [ 32.992398] RSP: 0018:ffff8801c9fcec20 EFLAGS: 00010293 [ 32.996546] ? clockevents_program_event+0x140/0x370 [ 33.002269] __do_softirq+0x2e8/0xb17 [ 33.006386] RAX: ffff8801c8a1c180 RBX: ffffe8ffffc601e8 RCX: ffffffff86a60fd6 [ 33.011728] ? __irqentry_text_end+0x1f97a8/0x1f97a8 [ 33.016798] RDX: 0000000000000000 RSI: ffffffff86a60fe4 RDI: 0000000000000007 [ 33.020593] ? irq_exit+0xbb/0x200 [ 33.027836] RBP: ffff8801c9fcee90 R08: ffff8801c8a1c180 R09: fffff91ffff8c03d [ 33.032916] ? smp_apic_timer_interrupt+0x186/0x730 [ 33.040157] R10: fffff91ffff8c03d R11: ffffe8ffffc601ef R12: ffff8801d2cb1e00 [ 33.043677] ? smp_call_function_single_interrupt+0x660/0x660 [ 33.050919] R13: ffff8801d8bc7b80 R14: ffff8801a9b52ac0 R15: ffff8801a9b52b00 [ 33.055914] ? _raw_spin_unlock+0x22/0x30 [ 33.063158] FS: 00007f4496d9d700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 33.069020] ? handle_edge_irq+0x330/0x870 [ 33.076258] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.080386] ? task_prio+0x50/0x50 [ 33.088593] CR2: 00007f4496d9ce78 CR3: 00000001ca3da000 CR4: 00000000001406f0 [ 33.092824] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.098672] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.102202] do_softirq_own_stack+0x2a/0x40 [ 33.109447] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.114260] [ 33.121600] Call Trace: [ 33.125904] do_softirq.part.18+0x14d/0x190 [ 33.133160] ? ip6_pol_route_lookup+0x1130/0x1130 [ 33.135371] ? pppol2tp_sendmsg+0x49e/0x6c0 [ 33.137950] ? trace_hardirqs_on+0x10/0x10 [ 33.142235] __local_bh_enable_ip+0x1ec/0x230 [ 33.147052] ip6_pol_route_output+0x54/0x70 [ 33.151349] pppol2tp_sendmsg+0x4c4/0x6c0 [ 33.155568] fib6_rule_lookup+0x283/0x890 [ 33.160044] ? move_addr_to_kernel.part.20+0x100/0x100 [ 33.164335] ? ip6_pol_route_input+0x80/0x80 [ 33.168458] ? kasan_check_write+0x14/0x20 [ 33.172578] ? fib6_lookup+0x480/0x480 [ 33.177968] ? pppol2tp_getsockopt+0x950/0x950 [ 33.182375] ? __dev_get_by_index+0x1c0/0x1c0 [ 33.186582] sock_sendmsg+0xd5/0x120 [ 33.190444] ? lock_release+0xa30/0xa30 [ 33.194998] ___sys_sendmsg+0x51d/0x930 [ 33.199505] ip6_route_output_flags+0x2c5/0x350 [ 33.203197] ? kasan_check_write+0x14/0x20 [ 33.207142] ip6_dst_lookup_tail+0x1278/0x1da0 [ 33.211091] ? copy_msghdr_from_user+0x580/0x580 [ 33.215735] ? dst_output+0x180/0x180 [ 33.219941] ? __schedule+0x884/0x1ea0 [ 33.224509] ? lock_acquire+0x1e4/0x540 [ 33.229234] ? __sched_text_start+0x8/0x8 [ 33.233014] ? sk_dst_check+0x3ca/0x770 [ 33.236874] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.240821] ? lock_downgrade+0x8f0/0x8f0 [ 33.244943] ? lock_acquire+0x1e4/0x540 [ 33.248888] ? lock_release+0xa30/0xa30 [ 33.253617] ? __might_fault+0x12b/0x1e0 [ 33.257745] ? sk_dst_check+0x4a9/0x770 [ 33.261688] ? lock_downgrade+0x8f0/0x8f0 [ 33.265650] ? sock_def_write_space+0x9d0/0x9d0 [ 33.269693] ? lock_release+0xa30/0xa30 [ 33.273642] ip6_dst_lookup_flow+0xc8/0x270 [ 33.277761] ? check_same_owner+0x340/0x340 [ 33.282401] ? ip6_dst_lookup+0x60/0x60 [ 33.286353] ? debug_lockdep_rcu_enabled+0x3b/0x90 [ 33.290647] ip6_sk_dst_lookup_flow+0x5ed/0xc50 [ 33.294940] ? rcu_note_context_switch+0x730/0x730 [ 33.298887] ? ip6_dst_lookup_flow+0x270/0x270 [ 33.303797] ? check_same_owner+0x340/0x340 [ 33.308438] ? trace_hardirqs_on+0x10/0x10 [ 33.313343] __sys_sendmmsg+0x240/0x6f0 [ 33.317910] udpv6_sendmsg+0x216c/0x36c0 [ 33.322200] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 33.326408] ? ip_reply_glue_bits+0xc0/0xc0 [ 33.330360] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 33.334395] ? udpv6_queue_rcv_skb+0x15d0/0x15d0 [ 33.338709] ? fput+0x130/0x1a0 [ 33.343021] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 33.348514] ? __sys_connect+0x1d1/0x4c0 [ 33.353253] ? rw_copy_check_uvector+0x30d/0x3e0 [ 33.356506] ? __ia32_sys_accept+0xb0/0xb0 [ 33.362018] ? lock_acquire+0x1e4/0x540 [ 33.366066] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 33.370791] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 33.375010] __x64_sys_sendmmsg+0x9d/0x100 [ 33.378964] ? import_iovec+0x269/0x470 [ 33.383521] do_syscall_64+0x1b9/0x820 [ 33.389037] ? dup_iter+0x270/0x270 [ 33.393245] ? syscall_return_slowpath+0x5e0/0x5e0 [ 33.397194] inet_sendmsg+0x1a1/0x690 [ 33.401064] ? syscall_return_slowpath+0x31d/0x5e0 [ 33.404662] ? udpv6_queue_rcv_skb+0x15d0/0x15d0 [ 33.409565] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 33.413350] ? inet_sendmsg+0x1a1/0x690 [ 33.418252] ? prepare_exit_to_usermode+0x291/0x3b0 [ 33.422979] ? copy_msghdr_from_user+0x3c4/0x580 [ 33.427979] ? perf_trace_sys_enter+0xb10/0xb10 [ 33.431925] ? ipip_gro_receive+0x100/0x100 [ 33.436923] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.441739] ? move_addr_to_kernel.part.20+0x100/0x100 [ 33.446386] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.450690] ? security_socket_sendmsg+0x94/0xc0 [ 33.455502] RIP: 0033:0x446ba9 [ 33.460761] ? ipip_gro_receive+0x100/0x100 [ 33.465912] Code: [ 33.470653] sock_sendmsg+0xd5/0x120 [ 33.473812] e8 [ 33.478115] ___sys_sendmsg+0x51d/0x930 [ 33.480239] cc [ 33.483931] ? copy_msghdr_from_user+0x580/0x580 [ 33.485788] bb [ 33.489744] ? __fget_light+0x2f7/0x440 [ 33.491598] 02 [ 33.496332] ? fget_raw+0x20/0x20 [ 33.498185] 00 [ 33.502149] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 33.504009] 48 [ 33.507451] ? sockfd_lookup_light+0xc5/0x160 [ 33.509315] 83 [ 33.514840] __sys_sendmmsg+0x240/0x6f0 [ 33.516703] c4 [ 33.521181] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 33.523034] 18 [ 33.527003] ? finish_task_switch+0x1d3/0x870 [ 33.528852] c3 [ 33.533156] ? lock_downgrade+0x8f0/0x8f0 [ 33.535009] 0f [ 33.539495] ? finish_task_switch+0x18a/0x870 [ 33.541350] 1f [ 33.546619] ? kasan_check_read+0x11/0x20 [ 33.548472] 80 [ 33.552950] ? do_raw_spin_unlock+0xa7/0x2f0 [ 33.554823] 00 [ 33.558949] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 33.560807] 00 [ 33.565197] __x64_sys_sendmmsg+0x9d/0x100 [ 33.567060] 00 [ 33.571626] do_syscall_64+0x1b9/0x820 [ 33.573573] 00 [ 33.577785] ? finish_task_switch+0x1d3/0x870 [ 33.579641] 48 [ 33.583509] ? syscall_return_slowpath+0x5e0/0x5e0 [ 33.585361] 89 [ 33.589850] ? syscall_return_slowpath+0x31d/0x5e0 [ 33.591722] f8 [ 33.596650] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 33.598515] 48 [ 33.603437] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.605291] 89 [ 33.610291] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.612142] f7 [ 33.616963] RIP: 0033:0x446ba9 [ 33.618822] 48 [ 33.623986] Code: [ 33.625849] 89 [ 33.629015] e8 [ 33.630882] d6 [ 33.633016] cc [ 33.634888] 48 [ 33.636748] bb [ 33.638608] 89 [ 33.640470] 02 [ 33.642332] ca [ 33.644206] 00 [ 33.646068] 4d [ 33.647928] 48 [ 33.649788] 89 [ 33.651645] 83 c4 [ 33.653520] c2 [ 33.655378] 18 c3 [ 33.657245] 4d [ 33.659381] 0f [ 33.661241] 89 [ 33.663363] 1f [ 33.665241] c8 [ 33.667111] 80 [ 33.668983] 4c [ 33.670844] 00 [ 33.672705] 8b [ 33.674571] 00 [ 33.676434] 4c [ 33.678299] 00 00 [ 33.680256] 24 [ 33.682117] 48 [ 33.683977] 08 [ 33.686187] 89 [ 33.688051] 0f [ 33.689914] f8 [ 33.691776] 05 [ 33.693640] 48 [ 33.695510] <48> [ 33.697376] 89 [ 33.699246] 3d [ 33.701107] f7 [ 33.703141] 01 [ 33.705002] 48 [ 33.706866] f0 [ 33.708730] 89 [ 33.710592] ff [ 33.712454] d6 [ 33.714317] ff [ 33.716178] 48 [ 33.718067] 0f [ 33.719928] 89 [ 33.721788] 83 [ 33.723649] ca [ 33.725520] eb [ 33.727382] 4d [ 33.729239] 08 fc [ 33.731106] 89 [ 33.732985] ff [ 33.734846] c2 [ 33.736962] c3 66 [ 33.738834] 4d [ 33.740697] 2e [ 33.742553] 89 c8 [ 33.744680] 0f [ 33.746556] 4c [ 33.748426] 1f [ 33.750552] 8b [ 33.752412] 84 [ 33.754272] 4c [ 33.756132] 00 [ 33.757995] 24 [ 33.759855] 00 [ 33.761716] 08 [ 33.763588] 00 [ 33.765463] 0f [ 33.767329] 00 [ 33.769192] 05 [ 33.772915] <48> [ 33.774787] RSP: 002b:00007f4496dbdda8 EFLAGS: 00000297 [ 33.776649] 3d [ 33.778685] ORIG_RAX: 0000000000000133 [ 33.784019] 01 [ 33.785886] RAX: ffffffffffffffda RBX: 00000000006dcc3c RCX: 0000000000446ba9 [ 33.789825] f0 [ 33.791690] RDX: 00000000000003e8 RSI: 0000000020005fc0 RDI: 0000000000000004 [ 33.798930] ff [ 33.800797] RBP: 00000000006dcc38 R08: 0000000000000000 R09: 0000000000000000 [ 33.808038] ff [ 33.809908] R10: 0000000000000000 R11: 0000000000000297 R12: 45c828efc7a64843 [ 33.817147] 0f [ 33.819014] R13: e6eeb815b9d8a477 R14: 5068caf6f713c6fc R15: 0000000000000001 [ 33.826253] 83 [ 33.828120] [ 33.835358] eb 08 [ 33.837229] Allocated by task 4731: [ 33.838829] fc [ 33.840968] save_stack+0x43/0xd0 [ 33.844568] ff [ 33.846447] kasan_kmalloc+0xc4/0xe0 [ 33.849868] c3 [ 33.851736] kasan_slab_alloc+0x12/0x20 [ 33.855415] 66 [ 33.857286] kmem_cache_alloc+0x12e/0x760 [ 33.861223] 2e [ 33.863094] dst_alloc+0xbb/0x1d0 [ 33.867206] 0f [ 33.869085] ip6_dst_alloc+0x35/0xa0 [ 33.872499] 1f [ 33.874369] ip6_pol_route+0x758/0x13d0 [ 33.878052] 84 [ 33.879922] ip6_pol_route_output+0x54/0x70 [ 33.883871] 00 [ 33.885833] fib6_rule_lookup+0x283/0x890 [ 33.890299] 00 [ 33.892168] ip6_route_output_flags+0x2c5/0x350 [ 33.892183] ip6_dst_lookup_tail+0xe3f/0x1da0 [ 33.896296] 00 [ 33.898168] ip6_dst_lookup_flow+0xc8/0x270 [ 33.898184] ip6_datagram_dst_update+0x763/0xf90 [ 33.902816] 00 [ 33.907291] __ip6_datagram_connect+0x5fe/0x1470 [ 33.913442] ip6_datagram_connect+0x2f/0x50 [ 33.918163] RSP: 002b:00007f4496d9cda8 EFLAGS: 00000246 [ 33.920039] inet_dgram_connect+0x154/0x2e0 [ 33.924757] ORIG_RAX: 0000000000000133 [ 33.929056] __sys_connect+0x37d/0x4c0 [ 33.934388] RAX: ffffffffffffffda RBX: 00000000006dcc54 RCX: 0000000000446ba9 [ 33.938691] __x64_sys_connect+0x73/0xb0 [ 33.942633] RDX: 00000000000000b8 RSI: 0000000020001b00 RDI: 0000000000000003 [ 33.946497] do_syscall_64+0x1b9/0x820 [ 33.953741] RBP: 00000000006dcc50 R08: 00007f4496d9d700 R09: 0000000000000000 [ 33.957790] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.965030] R10: 0000000000000000 R11: 0000000000000246 R12: 45c828efc7a64843 [ 33.968893] [ 33.976150] R13: e6eeb815b9d8a477 R14: 5068caf6f713c6fc R15: 0000000000000001 [ 33.981318] Freed by task 4822: [ 33.988563] Modules linked in: [ 33.990169] save_stack+0x43/0xd0 [ 34.000665] __kasan_slab_free+0x11a/0x170 [ 34.003824] Dumping ftrace buffer: [ 34.007251] kasan_slab_free+0xe/0x10 [ 34.011454] (ftrace buffer empty) [ 34.014982] kmem_cache_free+0x86/0x2d0 [ 34.014997] dst_destroy+0x267/0x3c0 [ 34.018849] ---[ end trace 954a385cbb759e75 ]--- [ 34.022470] dst_destroy_rcu+0x16/0x20 [ 34.022480] rcu_process_callbacks+0xf98/0x2860 [ 34.022494] __do_softirq+0x2e8/0xb17 [ 34.026453] RIP: 0010:ip6_pol_route+0xa34/0x13d0 [ 34.030124] [ 34.030133] The buggy address belongs to the object at ffff8801d2cb1e00 [ 34.030133] which belongs to the cache ip6_dst_cache of size 240 [ 34.030148] The buggy address is located 64 bytes inside of [ 34.030148] 240-byte region [ffff8801d2cb1e00, ffff8801d2cb1ef0) [ 34.034873] Code: [ 34.038726] The buggy address belongs to the page: [ 34.038736] page:ffffea00074b2c40 count:1 mapcount:0 mapping:ffff8801cd271180 index:0x0 [ 34.043397] 31 [ 34.047162] flags: 0x2fffc0000000200(slab) [ 34.047179] raw: 02fffc0000000200 ffffea000759a148 ffffea0006c1c048 ffff8801cd271180 [ 34.051913] e4 [ 34.053515] raw: 0000000000000000 ffff8801d2cb1040 000000010000000c 0000000000000000 [ 34.053527] page dumped because: kasan: bad access detected [ 34.066346] e8 [ 34.078099] [ 34.078102] Memory state around the buggy address: [ 34.078112] ffff8801d2cb1d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 34.078122] ffff8801d2cb1d80: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc [ 34.080267] af [ 34.085167] >ffff8801d2cb1e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 34.085171] ^ [ 34.085181] ffff8801d2cb1e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc [ 34.093303] 01 [ 34.095162] ffff8801d2cb1f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 34.095166] ================================================================== [ 34.095202] Kernel panic - not syncing: panic_on_warn set ... [ 34.095202] [ 34.100270] 15 [ 34.108624] Dumping ftrace buffer: [ 34.108629] (ftrace buffer empty) [ 34.108632] Kernel Offset: disabled [ 34.205456] Rebooting in 86400 seconds..