[ 28.456315] default_idle_call+0x36/0x90 [ 28.460342] do_idle+0x24e/0x3b0 [ 28.463759] cpu_startup_entry+0x18/0x20 [ 28.467783] rest_init+0xed/0xf0 [ 28.471114] start_kernel+0x72e/0x754 [ 28.474879] ? mem_encrypt_init+0xb/0xb [ 28.478818] ? memcpy_orig+0x54/0x110 [ 28.482582] x86_64_start_reservations+0x2a/0x2c [ 28.487304] x86_64_start_kernel+0x77/0x7a [ 28.491503] secondary_startup_64+0xa5/0xa5 Warning: Permanently added 'ci-upstream-net-kasan-gce-9,10.128.0.5' (ECDSA) to the list of known hosts. executing program [ 34.571638] ================================================================== [ 34.579052] BUG: KASAN: stack-out-of-bounds in xfrm_state_find+0x305b/0x3190 [ 34.586206] Read of size 4 at addr ffff8801ce30f760 by task syzkaller351681/2996 [ 34.593702] [ 34.595297] CPU: 0 PID: 2996 Comm: syzkaller351681 Not tainted 4.14.0-rc4+ #84 [ 34.602622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.611959] Call Trace: [ 34.614518] dump_stack+0x194/0x257 [ 34.618112] ? arch_local_irq_restore+0x53/0x53 [ 34.622745] ? show_regs_print_info+0x65/0x65 [ 34.627210] ? lock_release+0xd70/0xd70 [ 34.631152] ? xfrm_state_find+0x305b/0x3190 [ 34.635526] print_address_description+0x73/0x250 [ 34.640342] ? xfrm_state_find+0x305b/0x3190 [ 34.644715] kasan_report+0x25b/0x340 [ 34.648483] __asan_report_load4_noabort+0x14/0x20 [ 34.653469] xfrm_state_find+0x305b/0x3190 [ 34.657676] ? mark_free_pages+0x390/0x390 [ 34.661885] ? xfrm_state_afinfo_get_rcu+0x160/0x160 [ 34.666954] ? kasan_unpoison_shadow+0x35/0x50 [ 34.671507] ? account_entity_enqueue+0x283/0x4f0 [ 34.676325] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 34.681482] ? lock_downgrade+0x990/0x990 [ 34.685598] ? lock_acquire+0x1d5/0x580 [ 34.689540] ? __free_insn_slot+0x5c0/0x5c0 [ 34.693829] ? lock_release+0xd70/0xd70 [ 34.697770] ? is_bpf_text_address+0x7b/0x120 [ 34.702229] ? lock_downgrade+0x990/0x990 [ 34.706347] ? trace_raw_output_xdp_redirect_map_err+0x440/0x440 [ 34.712456] ? __bpf_address_lookup+0x2b0/0x2b0 [ 34.717092] ? depot_save_stack+0x3b5/0x490 [ 34.721380] ? lock_downgrade+0x990/0x990 [ 34.725494] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 34.730661] ? lock_acquire+0x1d5/0x580 [ 34.734605] ? depot_save_stack+0x1c2/0x490 [ 34.738897] ? do_raw_spin_trylock+0x190/0x190 [ 34.743445] ? is_bpf_text_address+0xa4/0x120 [ 34.747907] ? kernel_text_address+0x102/0x140 [ 34.752459] xfrm_tmpl_resolve+0x2fb/0xbd0 [ 34.756668] ? __xfrm_decode_session+0x100/0x100 [ 34.761391] ? save_stack_trace+0x16/0x20 [ 34.765504] ? kasan_slab_alloc+0x12/0x20 [ 34.769615] ? kmem_cache_alloc+0x12e/0x760 [ 34.773904] ? dst_alloc+0x11f/0x1a0 [ 34.777584] ? rt_add_uncached_list+0x1b7/0x240 [ 34.782216] ? lock_downgrade+0x990/0x990 [ 34.786330] ? udpv6_sendmsg+0x743/0x3380 [ 34.790443] ? inet_sendmsg+0x11f/0x5e0 [ 34.794391] ? sock_sendmsg+0xca/0x110 [ 34.798245] ? lock_acquire+0x1d5/0x580 [ 34.802184] ? rt_add_uncached_list+0xa2/0x240 [ 34.806731] ? lock_acquire+0x1d5/0x580 [ 34.810672] xfrm_resolve_and_create_bundle+0x186/0x24b0 [ 34.816087] ? do_raw_spin_trylock+0x190/0x190 [ 34.820633] ? __isolate_free_page+0x8a0/0x8a0 [ 34.825181] ? rt_add_uncached_list+0x1b7/0x240 [ 34.829817] ? xfrm_tmpl_resolve+0xbd0/0xbd0 [ 34.834201] ? xfrm_sk_policy_lookup+0x2a6/0x3d0 [ 34.838925] ? lock_downgrade+0x990/0x990 [ 34.843040] ? dst_init+0x4d9/0x6a0 [ 34.846633] ? lock_acquire+0x1d5/0x580 [ 34.850570] ? xfrm_selector_match+0xe00/0xe00 [ 34.855122] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 34.860283] ? lock_release+0xd70/0xd70 [ 34.864222] ? dst_alloc+0x14a/0x1a0 [ 34.867899] ? lock_downgrade+0x990/0x990 [ 34.872012] ? refcount_inc_not_zero+0xfe/0x180 [ 34.876644] ? refcount_add+0x60/0x60 [ 34.880424] ? xfrm_selector_match+0x3b/0xe00 [ 34.884888] ? xfrm_sk_policy_lookup+0x2cf/0x3d0 [ 34.889609] ? xfrm_selector_match+0xe00/0xe00 [ 34.894165] ? ip_route_output_key_hash_rcu+0x604/0x2c20 [ 34.899590] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 34.904747] xfrm_lookup+0xf0a/0x2540 [ 34.908511] ? xfrm_lookup+0xf0a/0x2540 [ 34.912451] ? ip_route_input_noref+0x1e0/0x1e0 [ 34.917089] ? xfrm_policy_lookup_bytype.constprop.49+0x16f0/0x16f0 [ 34.923462] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 34.928621] ? ip_route_output_key_hash+0x229/0x370 [ 34.933604] ? lock_downgrade+0x990/0x990 [ 34.937718] ? get_kernel_page+0x110/0x110 [ 34.941920] ? lock_acquire+0x1d5/0x580 [ 34.945870] ? ip_route_output_key_hash+0x1a6/0x370 [ 34.950856] ? lock_release+0xd70/0xd70 [ 34.954798] ? save_stack+0xa3/0xd0 [ 34.958390] ? udp_sendmsg+0x1d7c/0x2cd0 [ 34.962415] ? lock_downgrade+0x990/0x990 [ 34.966526] ? kasan_kmalloc+0xad/0xe0 [ 34.970383] ? ip_route_output_key_hash+0x252/0x370 [ 34.975364] ? ip_route_output_key_hash_rcu+0x2c20/0x2c20 [ 34.980866] ? lock_release+0xd70/0xd70 [ 34.984809] ? __mem_cgroup_threshold+0x8f0/0x8f0 [ 34.989620] xfrm_lookup_route+0x39/0x1a0 [ 34.993735] ip_route_output_flow+0x7c/0xa0 [ 34.998023] udp_sendmsg+0x19b8/0x2cd0 [ 35.001879] ? ip_reply_glue_bits+0xb0/0xb0 [ 35.006171] ? udp_lib_get_port+0x1c00/0x1c00 [ 35.010632] ? lock_release+0xd70/0xd70 [ 35.014571] ? do_raw_spin_trylock+0x190/0x190 [ 35.019116] ? udp_lib_get_port+0x793/0x1c00 [ 35.023490] ? lock_downgrade+0x990/0x990 [ 35.027601] ? lock_release+0xd70/0xd70 [ 35.031545] ? udp_lib_get_port+0xc34/0x1c00 [ 35.035921] ? do_raw_spin_trylock+0x190/0x190 [ 35.040475] ? udp_lib_lport_inuse2+0x450/0x450 [ 35.045110] ? trace_hardirqs_on+0xd/0x10 [ 35.049229] ? udp_lib_get_port+0x793/0x1c00 [ 35.053602] ? trace_hardirqs_on+0xd/0x10 [ 35.057715] ? __local_bh_enable_ip+0x9d/0x160 [ 35.062275] ? _raw_spin_unlock_bh+0x30/0x40 [ 35.066647] ? udp_lib_get_port+0x798/0x1c00 [ 35.071027] udpv6_sendmsg+0x743/0x3380 [ 35.074976] ? udpv6_setsockopt+0x80/0x80 [ 35.079090] ? lock_downgrade+0x990/0x990 [ 35.083214] ? save_stack+0x43/0xd0 [ 35.086812] ? release_sock+0x1d4/0x2a0 [ 35.090757] ? lock_downgrade+0x990/0x990 [ 35.094870] ? lock_downgrade+0x990/0x990 [ 35.098985] ? lock_release+0xd70/0xd70 [ 35.102923] ? lock_acquire+0x1d5/0x580 [ 35.106862] ? release_sock+0x74/0x2a0 [ 35.110715] ? lock_downgrade+0x990/0x990 [ 35.114832] ? do_raw_spin_trylock+0x190/0x190 [ 35.119382] ? ip6_datagram_release_cb+0xbf/0x520 [ 35.124189] ? ip6_datagram_dst_update+0x13d0/0x13d0 [ 35.129270] ? release_sock+0x1d4/0x2a0 [ 35.133210] ? trace_hardirqs_on+0xd/0x10 [ 35.137323] ? __local_bh_enable_ip+0x9d/0x160 [ 35.141870] ? _raw_spin_unlock_bh+0x30/0x40 [ 35.146244] ? release_sock+0x1d4/0x2a0 [ 35.150184] ? __release_sock+0x360/0x360 [ 35.154298] ? udp6_portaddr_hash+0x146/0x2f0 [ 35.158760] ? udp_v6_get_port+0x9c/0xc0 [ 35.162790] inet_sendmsg+0x11f/0x5e0 [ 35.166555] ? inet_sendmsg+0x11f/0x5e0 [ 35.170497] ? __might_sleep+0x95/0x190 [ 35.174435] ? inet_recvmsg+0x5f0/0x5f0 [ 35.178377] ? selinux_socket_sendmsg+0x36/0x40 [ 35.183013] ? security_socket_sendmsg+0x89/0xb0 [ 35.187732] ? inet_recvmsg+0x5f0/0x5f0 [ 35.191673] sock_sendmsg+0xca/0x110 [ 35.195359] SYSC_sendto+0x358/0x5a0 [ 35.199040] ? SYSC_connect+0x480/0x480 [ 35.202986] ? mm_fault_error+0x2c0/0x2c0 [ 35.207100] ? ipv6_setsockopt+0xa8/0x150 [ 35.211218] ? __do_page_fault+0xd60/0xd60 [ 35.215426] ? lockdep_sys_exit+0x47/0xf0 [ 35.219549] ? prepare_exit_to_usermode+0x1a0/0x2d0 [ 35.224530] ? perf_trace_sys_enter+0xc20/0xc20 [ 35.229177] SyS_sendto+0x40/0x50 [ 35.232599] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 35.237322] RIP: 0033:0x43ff99 [ 35.240488] RSP: 002b:00007fffd13b38e8 EFLAGS: 00000217 ORIG_RAX: 000000000000002c [ 35.248173] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ff99 [ 35.255411] RDX: 0000000000000000 RSI: 0000000020a9f000 RDI: 0000000000000003 [ 35.262646] RBP: 00000000006ca018 R08: 00000000204e3fe4 R09: 000000000000001c [ 35.269881] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401900 [ 35.277116] R13: 0000000000401990 R14: 0000000000000000 R15: 0000000000000000 [ 35.284362] [ 35.285957] The buggy address belongs to the page: [ 35.290854] page:ffffea000738c3c0 count:0 mapcount:0 mapping: (null) index:0x0 [ 35.298960] flags: 0x200000000000000() [ 35.302812] raw: 0200000000000000 0000000000000000 0000000000000000 00000000ffffffff [ 35.311185] raw: 0000000000000000 0000000100000001 0000000000000000 0000000000000000 [ 35.319031] page dumped because: kasan: bad access detected [ 35.324701] [ 35.326294] Memory state around the buggy address: [ 35.331187] ffff8801ce30f600: 00 f1 f1 f1 f1 04 f2 f2 f2 f2 f2 f2 f2 00 f2 f2 [ 35.338508] ffff8801ce30f680: f2 f2 f2 f2 f2 f8 f2 f2 f2 f2 f2 f2 f2 00 00 00 [ 35.345829] >ffff8801ce30f700: 00 f2 f2 f2 f2 00 00 00 00 00 00 00 f2 f2 f2 f2 [ 35.353150] ^ [ 35.359603] ffff8801ce30f780: f2 00 00 00 00 00 00 00 00 00 f2 f2 f2 f3 f3 f3 [ 35.366927] ffff8801ce30f800: f3 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.374246] ================================================================== [ 35.381800] Kernel panic - not syncing: panic_on_warn set ... [ 35.381800] [ 35.389135] CPU: 0 PID: 2996 Comm: syzkaller351681 Tainted: G B 4.14.0-rc4+ #84 [ 35.397686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.407005] Call Trace: [ 35.409561] dump_stack+0x194/0x257 [ 35.413156] ? arch_local_irq_restore+0x53/0x53 [ 35.417792] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 35.422517] ? xfrm_state_find+0x2f70/0x3190 [ 35.426891] panic+0x1e4/0x417 [ 35.430050] ? __warn+0x1d9/0x1d9 [ 35.433475] ? xfrm_state_find+0x305b/0x3190 [ 35.437849] kasan_end_report+0x50/0x50 [ 35.441787] kasan_report+0x144/0x340 [ 35.445554] __asan_report_load4_noabort+0x14/0x20 [ 35.450447] xfrm_state_find+0x305b/0x3190 [ 35.454653] ? mark_free_pages+0x390/0x390 [ 35.458860] ? xfrm_state_afinfo_get_rcu+0x160/0x160 [ 35.463925] ? kasan_unpoison_shadow+0x35/0x50 [ 35.468480] ? account_entity_enqueue+0x283/0x4f0 [ 35.473297] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 35.478450] ? lock_downgrade+0x990/0x990 [ 35.482565] ? lock_acquire+0x1d5/0x580 [ 35.486507] ? __free_insn_slot+0x5c0/0x5c0 [ 35.490800] ? lock_release+0xd70/0xd70 [ 35.494742] ? is_bpf_text_address+0x7b/0x120 [ 35.499200] ? lock_downgrade+0x990/0x990 [ 35.503315] ? trace_raw_output_xdp_redirect_map_err+0x440/0x440 [ 35.509424] ? __bpf_address_lookup+0x2b0/0x2b0 [ 35.514064] ? depot_save_stack+0x3b5/0x490 [ 35.518350] ? lock_downgrade+0x990/0x990 [ 35.522465] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 35.527617] ? lock_acquire+0x1d5/0x580 [ 35.531554] ? depot_save_stack+0x1c2/0x490 [ 35.535846] ? do_raw_spin_trylock+0x190/0x190 [ 35.540394] ? is_bpf_text_address+0xa4/0x120 [ 35.544856] ? kernel_text_address+0x102/0x140 [ 35.549407] xfrm_tmpl_resolve+0x2fb/0xbd0 [ 35.553615] ? __xfrm_decode_session+0x100/0x100 [ 35.558337] ? save_stack_trace+0x16/0x20 [ 35.562449] ? kasan_slab_alloc+0x12/0x20 [ 35.566561] ? kmem_cache_alloc+0x12e/0x760 [ 35.570849] ? dst_alloc+0x11f/0x1a0