Warning: Permanently added '10.128.0.103' (ECDSA) to the list of known hosts. 2019/08/16 12:34:42 fuzzer started 2019/08/16 12:34:49 dialing manager at 10.128.0.26:38533 2019/08/16 12:34:49 syscalls: 2376 2019/08/16 12:34:49 code coverage: enabled 2019/08/16 12:34:49 comparison tracing: CONFIG_KCOV_ENABLE_COMPARISONS is not enabled 2019/08/16 12:34:49 extra coverage: enabled 2019/08/16 12:34:49 setuid sandbox: enabled 2019/08/16 12:34:49 namespace sandbox: enabled 2019/08/16 12:34:49 Android sandbox: /sys/fs/selinux/policy does not exist 2019/08/16 12:34:49 fault injection: enabled 2019/08/16 12:34:49 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/08/16 12:34:49 net packet injection: enabled 2019/08/16 12:34:49 net device setup: enabled login: [ 142.509386][T11796] ================================================================== [ 142.517582][T11796] BUG: KMSAN: uninit-value in kmem_cache_free+0x3df/0x2b70 [ 142.524832][T11796] CPU: 0 PID: 11796 Comm: syz-fuzzer Not tainted 5.3.0-rc3+ #17 [ 142.532572][T11796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 142.542657][T11796] Call Trace: [ 142.546024][T11796] dump_stack+0x191/0x1f0 [ 142.550415][T11796] kmsan_report+0x162/0x2d0 [ 142.554974][T11796] __msan_warning+0x75/0xe0 [ 142.559533][T11796] kmem_cache_free+0x3df/0x2b70 [ 142.564456][T11796] ? kfree_skb+0x473/0x4c0 [ 142.568915][T11796] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 142.575044][T11796] kfree_skb+0x473/0x4c0 [ 142.579374][T11796] ? packet_rcv_spkt+0x719/0x840 [ 142.584340][T11796] packet_rcv_spkt+0x719/0x840 [ 142.589215][T11796] ? packet_rcv+0x2190/0x2190 [ 142.593906][T11796] dev_queue_xmit_nit+0x1125/0x1200 [ 142.599142][T11796] dev_hard_start_xmit+0x21e/0xab0 [ 142.604299][T11796] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 142.610306][T11796] sch_direct_xmit+0x56c/0x18c0 [ 142.615178][T11796] ? kmsan_set_origin+0x26d/0x340 [ 142.620251][T11796] __dev_queue_xmit+0x1e53/0x4270 [ 142.625340][T11796] dev_queue_xmit+0x4b/0x60 [ 142.629879][T11796] ip_finish_output2+0x20c6/0x25d0 [ 142.635198][T11796] ? __msan_metadata_ptr_for_load_2+0x10/0x20 [ 142.641291][T11796] ? nf_ct_deliver_cached_events+0x4d5/0x6e0 [ 142.647318][T11796] __ip_finish_output+0xaf8/0xda0 [ 142.652366][T11796] ip_finish_output+0x2db/0x420 [ 142.657245][T11796] ip_output+0x541/0x610 [ 142.661510][T11796] ? ip_mc_finish_output+0x6d0/0x6d0 [ 142.666823][T11796] ? ip_finish_output+0x420/0x420 [ 142.671853][T11796] __ip_queue_xmit+0x1caf/0x21f0 [ 142.676815][T11796] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 142.682807][T11796] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 142.688879][T11796] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 142.695638][T11796] ip_queue_xmit+0xcc/0xf0 [ 142.700435][T11796] ? tcp_v4_inbound_md5_hash+0xd10/0xd10 [ 142.706105][T11796] __tcp_transmit_skb+0x409e/0x5c60 [ 142.711502][T11796] __tcp_send_ack+0x701/0x840 [ 142.716204][T11796] tcp_send_ack+0x68/0x90 [ 142.720559][T11796] tcp_cleanup_rbuf+0x764/0x800 [ 142.725448][T11796] tcp_recvmsg+0x334d/0x4ff0 [ 142.730300][T11796] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 142.736734][T11796] ? tcp_mmap+0x150/0x150 [ 142.741154][T11796] ? tcp_mmap+0x150/0x150 [ 142.745525][T11796] inet_recvmsg+0x237/0x7d0 [ 142.750142][T11796] ? inet_sendpage+0x2c0/0x2c0 [ 142.755029][T11796] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 142.761204][T11796] ? inet_sendpage+0x2c0/0x2c0 [ 142.766420][T11796] ? inet_sendpage+0x2c0/0x2c0 [ 142.771198][T11796] sock_read_iter+0x5be/0x660 [ 142.776650][T11796] ? kernel_sock_ip_overhead+0x340/0x340 [ 142.782299][T11796] __vfs_read+0xa67/0xc90 [ 142.786687][T11796] vfs_read+0x359/0x6f0 [ 142.790855][T11796] ksys_read+0x265/0x430 [ 142.795141][T11796] __se_sys_read+0x92/0xb0 [ 142.799590][T11796] __x64_sys_read+0x4a/0x70 [ 142.804111][T11796] do_syscall_64+0xbc/0xf0 [ 142.808538][T11796] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 142.814436][T11796] RIP: 0033:0x47fcb4 [ 142.818442][T11796] Code: ff ff cc cc cc cc e8 2b 41 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 45 31 d2 45 31 c0 45 31 c9 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 142.838045][T11796] RSP: 002b:000000c421214710 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 142.846474][T11796] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047fcb4 [ 142.854498][T11796] RDX: 0000000000001000 RSI: 000000c4202ca000 RDI: 0000000000000003 [ 142.862649][T11796] RBP: 000000c421214760 R08: 0000000000000000 R09: 0000000000000000 [ 142.870622][T11796] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 142.878602][T11796] R13: 0000000000000004 R14: 0000000000000040 R15: ffffffffffffffff [ 142.893332][T11796] [ 142.895657][T11796] Uninit was stored to memory at: [ 142.900708][T11796] kmsan_internal_chain_origin+0xcc/0x150 [ 142.906431][T11796] __msan_chain_origin+0x6b/0xe0 [ 142.911377][T11796] ___slab_alloc+0x1dbc/0x1fb0 [ 142.916132][T11796] kmem_cache_alloc+0xade/0xd10 [ 142.920974][T11796] skb_clone+0x326/0x5d0 [ 142.925237][T11796] dev_queue_xmit_nit+0x539/0x1200 [ 142.930344][T11796] dev_hard_start_xmit+0x21e/0xab0 [ 142.935480][T11796] sch_direct_xmit+0x56c/0x18c0 [ 142.940333][T11796] __dev_queue_xmit+0x1e53/0x4270 [ 142.945339][T11796] dev_queue_xmit+0x4b/0x60 [ 142.949828][T11796] ip_finish_output2+0x20c6/0x25d0 [ 142.954926][T11796] __ip_finish_output+0xaf8/0xda0 [ 142.959954][T11796] ip_finish_output+0x2db/0x420 [ 142.964795][T11796] ip_output+0x541/0x610 [ 142.969028][T11796] __ip_queue_xmit+0x1caf/0x21f0 [ 142.973958][T11796] ip_queue_xmit+0xcc/0xf0 [ 142.978369][T11796] __tcp_transmit_skb+0x409e/0x5c60 [ 142.983591][T11796] __tcp_send_ack+0x701/0x840 [ 142.988275][T11796] tcp_send_ack+0x68/0x90 [ 142.992610][T11796] tcp_cleanup_rbuf+0x764/0x800 [ 142.997451][T11796] tcp_recvmsg+0x334d/0x4ff0 [ 143.002041][T11796] inet_recvmsg+0x237/0x7d0 [ 143.006607][T11796] sock_read_iter+0x5be/0x660 [ 143.011285][T11796] __vfs_read+0xa67/0xc90 [ 143.015618][T11796] vfs_read+0x359/0x6f0 [ 143.019770][T11796] ksys_read+0x265/0x430 [ 143.024034][T11796] __se_sys_read+0x92/0xb0 [ 143.028451][T11796] __x64_sys_read+0x4a/0x70 [ 143.032959][T11796] do_syscall_64+0xbc/0xf0 [ 143.037393][T11796] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 143.043302][T11796] [ 143.045620][T11796] Uninit was created at: [ 143.049861][T11796] kmsan_internal_poison_shadow+0x53/0xa0 [ 143.055575][T11796] kmsan_slab_free+0x8d/0x100 [ 143.060273][T11796] kmem_cache_free_bulk+0x3ad9/0x3f50 [ 143.065643][T11796] __kfree_skb_flush+0xb0/0x100 [ 143.070525][T11796] net_rx_action+0x1908/0x1950 [ 143.075285][T11796] __do_softirq+0x4a1/0x83a [ 143.080061][T11796] irq_exit+0x230/0x280 [ 143.084229][T11796] do_IRQ+0x20d/0x3a0 [ 143.088198][T11796] ret_from_intr+0x0/0x33 [ 143.092536][T11796] default_idle+0x53/0x90 [ 143.096866][T11796] arch_cpu_idle+0x25/0x30 [ 143.101271][T11796] do_idle+0x1d7/0x790 [ 143.105329][T11796] cpu_startup_entry+0x45/0x50 [ 143.110186][T11796] rest_init+0x1be/0x1f0 [ 143.114650][T11796] arch_call_rest_init+0x13/0x15 [ 143.119664][T11796] start_kernel+0x991/0xb61 [ 143.124157][T11796] x86_64_start_reservations+0x18/0x2e [ 143.129718][T11796] x86_64_start_kernel+0x81/0x84 [ 143.134789][T11796] secondary_startup_64+0xa4/0xb0 [ 143.139829][T11796] ================================================================== [ 143.147917][T11796] Disabling lock debugging due to kernel taint [ 143.154079][T11796] Kernel panic - not syncing: panic_on_warn set ... [ 143.160690][T11796] CPU: 0 PID: 11796 Comm: syz-fuzzer Tainted: G B 5.3.0-rc3+ #17 [ 143.169699][T11796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 143.179753][T11796] Call Trace: [ 143.183089][T11796] dump_stack+0x191/0x1f0 [ 143.187435][T11796] panic+0x3c9/0xc1e [ 143.191362][T11796] kmsan_report+0x2ca/0x2d0 [ 143.195887][T11796] __msan_warning+0x75/0xe0 [ 143.200392][T11796] kmem_cache_free+0x3df/0x2b70 [ 143.205251][T11796] ? kfree_skb+0x473/0x4c0 [ 143.209775][T11796] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 143.215986][T11796] kfree_skb+0x473/0x4c0 [ 143.220262][T11796] ? packet_rcv_spkt+0x719/0x840 [ 143.225207][T11796] packet_rcv_spkt+0x719/0x840 [ 143.230287][T11796] ? packet_rcv+0x2190/0x2190 [ 143.235094][T11796] dev_queue_xmit_nit+0x1125/0x1200 [ 143.240500][T11796] dev_hard_start_xmit+0x21e/0xab0 [ 143.245637][T11796] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 143.252277][T11796] sch_direct_xmit+0x56c/0x18c0 [ 143.257144][T11796] ? kmsan_set_origin+0x26d/0x340 [ 143.262215][T11796] __dev_queue_xmit+0x1e53/0x4270 [ 143.267375][T11796] dev_queue_xmit+0x4b/0x60 [ 143.274832][T11796] ip_finish_output2+0x20c6/0x25d0 [ 143.279960][T11796] ? __msan_metadata_ptr_for_load_2+0x10/0x20 [ 143.286381][T11796] ? nf_ct_deliver_cached_events+0x4d5/0x6e0 [ 143.298907][T11796] __ip_finish_output+0xaf8/0xda0 [ 143.304081][T11796] ip_finish_output+0x2db/0x420 [ 143.309302][T11796] ip_output+0x541/0x610 [ 143.314113][T11796] ? ip_mc_finish_output+0x6d0/0x6d0 [ 143.320048][T11796] ? ip_finish_output+0x420/0x420 [ 143.325257][T11796] __ip_queue_xmit+0x1caf/0x21f0 [ 143.330231][T11796] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 143.336336][T11796] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 143.342502][T11796] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 143.348593][T11796] ip_queue_xmit+0xcc/0xf0 [ 143.353020][T11796] ? tcp_v4_inbound_md5_hash+0xd10/0xd10 [ 143.358661][T11796] __tcp_transmit_skb+0x409e/0x5c60 [ 143.363911][T11796] __tcp_send_ack+0x701/0x840 [ 143.368599][T11796] tcp_send_ack+0x68/0x90 [ 143.372925][T11796] tcp_cleanup_rbuf+0x764/0x800 [ 143.377783][T11796] tcp_recvmsg+0x334d/0x4ff0 [ 143.382425][T11796] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 143.388404][T11796] ? tcp_mmap+0x150/0x150 [ 143.392728][T11796] ? tcp_mmap+0x150/0x150 [ 143.397054][T11796] inet_recvmsg+0x237/0x7d0 [ 143.401574][T11796] ? inet_sendpage+0x2c0/0x2c0 [ 143.406336][T11796] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 143.412318][T11796] ? inet_sendpage+0x2c0/0x2c0 [ 143.417079][T11796] ? inet_sendpage+0x2c0/0x2c0 [ 143.422483][T11796] sock_read_iter+0x5be/0x660 [ 143.427288][T11796] ? kernel_sock_ip_overhead+0x340/0x340 [ 143.432917][T11796] __vfs_read+0xa67/0xc90 [ 143.437273][T11796] vfs_read+0x359/0x6f0 [ 143.441442][T11796] ksys_read+0x265/0x430 [ 143.445713][T11796] __se_sys_read+0x92/0xb0 [ 143.450133][T11796] __x64_sys_read+0x4a/0x70 [ 143.454631][T11796] do_syscall_64+0xbc/0xf0 [ 143.459045][T11796] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 143.464928][T11796] RIP: 0033:0x47fcb4 [ 143.468813][T11796] Code: ff ff cc cc cc cc e8 2b 41 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 45 31 d2 45 31 c0 45 31 c9 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 143.488426][T11796] RSP: 002b:000000c421214710 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 143.496855][T11796] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047fcb4 [ 143.504824][T11796] RDX: 0000000000001000 RSI: 000000c4202ca000 RDI: 0000000000000003 [ 143.512816][T11796] RBP: 000000c421214760 R08: 0000000000000000 R09: 0000000000000000 [ 143.520809][T11796] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 143.528802][T11796] R13: 0000000000000004 R14: 0000000000000040 R15: ffffffffffffffff [ 143.538057][T11796] Kernel Offset: disabled [ 143.542418][T11796] Rebooting in 86400 seconds..