Warning: Permanently added '10.128.10.2' (ECDSA) to the list of known hosts. 2021/05/03 11:57:26 fuzzer started 2021/05/03 11:57:27 dialing manager at 10.128.0.169:44661 2021/05/03 11:57:27 syscalls: 3571 2021/05/03 11:57:27 code coverage: enabled 2021/05/03 11:57:27 comparison tracing: enabled 2021/05/03 11:57:27 extra coverage: enabled 2021/05/03 11:57:27 setuid sandbox: enabled 2021/05/03 11:57:27 namespace sandbox: enabled 2021/05/03 11:57:27 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/03 11:57:27 fault injection: enabled 2021/05/03 11:57:27 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/03 11:57:27 net packet injection: enabled 2021/05/03 11:57:27 net device setup: enabled 2021/05/03 11:57:27 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/03 11:57:27 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/03 11:57:27 USB emulation: enabled 2021/05/03 11:57:27 hci packet injection: enabled 2021/05/03 11:57:27 wifi device emulation: enabled 2021/05/03 11:57:27 802.15.4 emulation: enabled 2021/05/03 11:57:27 fetching corpus: 50, signal 63276/65129 (executing program) 2021/05/03 11:57:27 fetching corpus: 100, signal 96490/100003 (executing program) 2021/05/03 11:57:27 fetching corpus: 150, signal 119667/124717 (executing program) 2021/05/03 11:57:28 fetching corpus: 200, signal 135150/141735 (executing program) 2021/05/03 11:57:28 fetching corpus: 250, signal 150809/158849 (executing program) 2021/05/03 11:57:28 fetching corpus: 300, signal 164006/173457 (executing program) 2021/05/03 11:57:28 fetching corpus: 350, signal 172084/182943 (executing program) 2021/05/03 11:57:28 fetching corpus: 400, signal 181182/193374 (executing program) syzkaller login: [ 70.061509][ T8428] ================================================================== [ 70.069939][ T8428] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 70.079603][ T8428] Read of size 752 at addr 108548c01a058010 by task syz-fuzzer/8428 [ 70.091471][ T8428] [ 70.094284][ T8428] CPU: 1 PID: 8428 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 70.104006][ T8428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.119642][ T8428] Call Trace: [ 70.122919][ T8428] dump_stack+0x141/0x1d7 [ 70.127274][ T8428] ? copyout.part.0+0xd7/0x110 [ 70.132025][ T8428] kasan_report.cold+0x5f/0xd8 [ 70.136799][ T8428] ? copyout.part.0+0xd7/0x110 [ 70.141553][ T8428] kasan_check_range+0x13d/0x180 [ 70.146493][ T8428] copyout.part.0+0xd7/0x110 [ 70.151086][ T8428] _copy_to_iter+0x2b4/0x1850 [ 70.155780][ T8428] ? lock_chain_count+0x20/0x20 [ 70.160642][ T8428] ? _copy_from_iter_nocache+0x1440/0x1440 [ 70.166440][ T8428] ? tcp_mstamp_refresh+0x12/0xa0 [ 70.175104][ T8428] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.181969][ T8428] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.187889][ T8428] ? __virt_addr_valid+0x5d/0x2d0 [ 70.192914][ T8428] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.199150][ T8428] ? __phys_addr_symbol+0x2c/0x70 [ 70.204162][ T8428] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.209872][ T8428] ? __check_object_size+0x18a/0x3f0 [ 70.215155][ T8428] simple_copy_to_iter+0x4c/0x70 [ 70.221215][ T8428] __skb_datagram_iter+0x4a7/0x770 [ 70.227591][ T8428] ? zerocopy_sg_from_iter+0x110/0x110 [ 70.233899][ T8428] skb_copy_datagram_iter+0x40/0x50 [ 70.239817][ T8428] tcp_recvmsg_locked+0x1048/0x22f0 [ 70.246859][ T8428] ? tcp_splice_read+0x8b0/0x8b0 [ 70.252169][ T8428] ? mark_held_locks+0x9f/0xe0 [ 70.258418][ T8428] ? __local_bh_enable_ip+0xa0/0x120 [ 70.264307][ T8428] tcp_recvmsg+0x134/0x550 [ 70.269792][ T8428] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 70.276760][ T8428] ? aa_sk_perm+0x311/0xab0 [ 70.282475][ T8428] inet_recvmsg+0x11b/0x5e0 [ 70.287687][ T8428] ? inet_sendpage+0x140/0x140 [ 70.292993][ T8428] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.301198][ T8428] ? security_socket_recvmsg+0x8f/0xc0 [ 70.307200][ T8428] sock_read_iter+0x33c/0x470 [ 70.312144][ T8428] ? ____sys_recvmsg+0x600/0x600 [ 70.317708][ T8428] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.323949][ T8428] ? fsnotify+0xa58/0x1060 [ 70.331642][ T8428] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.338147][ T8428] new_sync_read+0x5b7/0x6e0 [ 70.342729][ T8428] ? ksys_lseek+0x1b0/0x1b0 [ 70.347253][ T8428] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 70.353243][ T8428] vfs_read+0x35c/0x570 [ 70.357391][ T8428] ksys_read+0x1ee/0x250 [ 70.361621][ T8428] ? vfs_write+0xa40/0xa40 [ 70.366038][ T8428] ? syscall_enter_from_user_mode+0x27/0x70 [ 70.371921][ T8428] do_syscall_64+0x3a/0xb0 [ 70.376327][ T8428] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.382208][ T8428] RIP: 0033:0x4af19b [ 70.386088][ T8428] Code: fb ff eb bd e8 a6 b6 fb ff e9 61 ff ff ff cc e8 9b 82 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 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 [ 70.410010][ T8428] RSP: 002b:000000c0002bf828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 70.418421][ T8428] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af19b [ 70.426417][ T8428] RDX: 0000000000001000 RSI: 000000c000446000 RDI: 0000000000000006 [ 70.434395][ T8428] RBP: 000000c0002bf878 R08: 0000000000000001 R09: 0000000000000002 [ 70.445109][ T8428] R10: 0000000000003fce R11: 0000000000000212 R12: 0000000000003fca [ 70.456107][ T8428] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000002 [ 70.465182][ T8428] ================================================================== [ 70.473698][ T8428] Disabling lock debugging due to kernel taint [ 70.481031][ T8428] Kernel panic - not syncing: panic_on_warn set ... [ 70.490565][ T8428] CPU: 0 PID: 8428 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 70.501769][ T8428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.512683][ T8428] Call Trace: [ 70.517690][ T8428] dump_stack+0x141/0x1d7 [ 70.522019][ T8428] panic+0x306/0x73d [ 70.526724][ T8428] ? __warn_printk+0xf3/0xf3 [ 70.531700][ T8428] ? preempt_schedule_common+0x59/0xc0 [ 70.537232][ T8428] ? copyout.part.0+0xd7/0x110 [ 70.541998][ T8428] ? preempt_schedule_thunk+0x16/0x18 [ 70.547539][ T8428] ? trace_hardirqs_on+0x38/0x1c0 [ 70.553655][ T8428] ? trace_hardirqs_on+0x51/0x1c0 [ 70.558717][ T8428] ? copyout.part.0+0xd7/0x110 [ 70.563465][ T8428] ? copyout.part.0+0xd7/0x110 [ 70.568214][ T8428] end_report.cold+0x5a/0x5a [ 70.572792][ T8428] kasan_report.cold+0x6a/0xd8 [ 70.577548][ T8428] ? copyout.part.0+0xd7/0x110 [ 70.582311][ T8428] kasan_check_range+0x13d/0x180 [ 70.587231][ T8428] copyout.part.0+0xd7/0x110 [ 70.591807][ T8428] _copy_to_iter+0x2b4/0x1850 [ 70.596484][ T8428] ? lock_chain_count+0x20/0x20 [ 70.602837][ T8428] ? _copy_from_iter_nocache+0x1440/0x1440 [ 70.611426][ T8428] ? tcp_mstamp_refresh+0x12/0xa0 [ 70.616442][ T8428] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.622673][ T8428] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.628379][ T8428] ? __virt_addr_valid+0x5d/0x2d0 [ 70.633389][ T8428] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.639635][ T8428] ? __phys_addr_symbol+0x2c/0x70 [ 70.644642][ T8428] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.657311][ T8428] ? __check_object_size+0x18a/0x3f0 [ 70.664253][ T8428] simple_copy_to_iter+0x4c/0x70 [ 70.669178][ T8428] __skb_datagram_iter+0x4a7/0x770 [ 70.674276][ T8428] ? zerocopy_sg_from_iter+0x110/0x110 [ 70.682601][ T8428] skb_copy_datagram_iter+0x40/0x50 [ 70.687890][ T8428] tcp_recvmsg_locked+0x1048/0x22f0 [ 70.694165][ T8428] ? tcp_splice_read+0x8b0/0x8b0 [ 70.699112][ T8428] ? mark_held_locks+0x9f/0xe0 [ 70.704340][ T8428] ? __local_bh_enable_ip+0xa0/0x120 [ 70.709917][ T8428] tcp_recvmsg+0x134/0x550 [ 70.714372][ T8428] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 70.719752][ T8428] ? aa_sk_perm+0x311/0xab0 [ 70.725633][ T8428] inet_recvmsg+0x11b/0x5e0 [ 70.730451][ T8428] ? inet_sendpage+0x140/0x140 [ 70.737470][ T8428] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.748592][ T8428] ? security_socket_recvmsg+0x8f/0xc0 [ 70.754060][ T8428] sock_read_iter+0x33c/0x470 [ 70.758758][ T8428] ? ____sys_recvmsg+0x600/0x600 [ 70.763719][ T8428] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.771475][ T8428] ? fsnotify+0xa58/0x1060 [ 70.775884][ T8428] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.782111][ T8428] new_sync_read+0x5b7/0x6e0 [ 70.786685][ T8428] ? ksys_lseek+0x1b0/0x1b0 [ 70.791170][ T8428] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 70.797162][ T8428] vfs_read+0x35c/0x570 [ 70.801302][ T8428] ksys_read+0x1ee/0x250 [ 70.805525][ T8428] ? vfs_write+0xa40/0xa40 [ 70.809924][ T8428] ? syscall_enter_from_user_mode+0x27/0x70 [ 70.815803][ T8428] do_syscall_64+0x3a/0xb0 [ 70.820204][ T8428] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.828185][ T8428] RIP: 0033:0x4af19b [ 70.832168][ T8428] Code: fb ff eb bd e8 a6 b6 fb ff e9 61 ff ff ff cc e8 9b 82 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 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 [ 70.851781][ T8428] RSP: 002b:000000c0002bf828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 70.860179][ T8428] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af19b [ 70.868137][ T8428] RDX: 0000000000001000 RSI: 000000c000446000 RDI: 0000000000000006 [ 70.882761][ T8428] RBP: 000000c0002bf878 R08: 0000000000000001 R09: 0000000000000002 [ 70.894442][ T8428] R10: 0000000000003fce R11: 0000000000000212 R12: 0000000000003fca [ 70.903275][ T8428] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000002 [ 70.912162][ T8428] Kernel Offset: disabled [ 70.916762][ T8428] Rebooting in 86400 seconds..