Warning: Permanently added '10.128.1.114' (ECDSA) to the list of known hosts. 2021/05/01 23:30:17 fuzzer started 2021/05/01 23:30:17 dialing manager at 10.128.0.169:44661 2021/05/01 23:30:17 syscalls: 3571 2021/05/01 23:30:17 code coverage: enabled 2021/05/01 23:30:17 comparison tracing: enabled 2021/05/01 23:30:17 extra coverage: enabled 2021/05/01 23:30:17 setuid sandbox: enabled 2021/05/01 23:30:17 namespace sandbox: enabled 2021/05/01 23:30:17 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/01 23:30:17 fault injection: enabled 2021/05/01 23:30:17 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/01 23:30:17 net packet injection: enabled 2021/05/01 23:30:17 net device setup: enabled 2021/05/01 23:30:17 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/01 23:30:17 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/01 23:30:17 USB emulation: enabled 2021/05/01 23:30:17 hci packet injection: enabled 2021/05/01 23:30:17 wifi device emulation: enabled 2021/05/01 23:30:17 802.15.4 emulation: enabled 2021/05/01 23:30:17 fetching corpus: 0, signal 0/2000 (executing program) 2021/05/01 23:30:18 fetching corpus: 50, signal 47085/50844 (executing program) 2021/05/01 23:30:18 fetching corpus: 100, signal 93114/98389 (executing program) 2021/05/01 23:30:18 fetching corpus: 150, signal 113434/120277 (executing program) 2021/05/01 23:30:18 fetching corpus: 200, signal 135988/144275 (executing program) 2021/05/01 23:30:18 fetching corpus: 250, signal 152371/162006 (executing program) 2021/05/01 23:30:19 fetching corpus: 300, signal 170049/180983 (executing program) 2021/05/01 23:30:19 fetching corpus: 350, signal 185182/197363 (executing program) syzkaller login: [ 70.255911][ T8461] ================================================================== [ 70.264230][ T8461] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 70.271738][ T8461] Read of size 1600 at addr 108548c02dbe0010 by task syz-fuzzer/8461 [ 70.279816][ T8461] [ 70.282143][ T8461] CPU: 1 PID: 8461 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 70.291693][ T8461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.301741][ T8461] Call Trace: [ 70.305012][ T8461] dump_stack+0x141/0x1d7 [ 70.309353][ T8461] ? copyout.part.0+0xd7/0x110 [ 70.314114][ T8461] kasan_report.cold+0x5f/0xd8 [ 70.318880][ T8461] ? copyout.part.0+0xd7/0x110 [ 70.323637][ T8461] kasan_check_range+0x13d/0x180 [ 70.328567][ T8461] copyout.part.0+0xd7/0x110 [ 70.333153][ T8461] _copy_to_iter+0x2b4/0x1850 [ 70.337826][ T8461] ? lock_chain_count+0x20/0x20 [ 70.342673][ T8461] ? _copy_from_iter_nocache+0x1440/0x1440 [ 70.348507][ T8461] ? tcp_mstamp_refresh+0x12/0xa0 [ 70.353527][ T8461] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.359766][ T8461] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.365495][ T8461] ? __virt_addr_valid+0x5d/0x2d0 [ 70.370947][ T8461] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.377184][ T8461] ? __phys_addr_symbol+0x2c/0x70 [ 70.382203][ T8461] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.387934][ T8461] ? __check_object_size+0x18a/0x3f0 [ 70.393218][ T8461] simple_copy_to_iter+0x4c/0x70 [ 70.398154][ T8461] __skb_datagram_iter+0x4a7/0x770 [ 70.403272][ T8461] ? zerocopy_sg_from_iter+0x110/0x110 [ 70.408726][ T8461] skb_copy_datagram_iter+0x40/0x50 [ 70.413920][ T8461] tcp_recvmsg_locked+0x1048/0x22f0 [ 70.419124][ T8461] ? tcp_splice_read+0x8b0/0x8b0 [ 70.424058][ T8461] ? mark_held_locks+0x9f/0xe0 [ 70.428821][ T8461] ? __local_bh_enable_ip+0xa0/0x120 [ 70.434111][ T8461] tcp_recvmsg+0x134/0x550 [ 70.438525][ T8461] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 70.443898][ T8461] ? aa_sk_perm+0x311/0xab0 [ 70.448398][ T8461] inet_recvmsg+0x11b/0x5e0 [ 70.452900][ T8461] ? inet_sendpage+0x140/0x140 [ 70.457661][ T8461] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.463898][ T8461] ? security_socket_recvmsg+0x8f/0xc0 [ 70.469366][ T8461] sock_read_iter+0x33c/0x470 [ 70.474039][ T8461] ? ____sys_recvmsg+0x600/0x600 [ 70.478978][ T8461] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.485219][ T8461] ? fsnotify+0xa58/0x1060 [ 70.489628][ T8461] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.495866][ T8461] new_sync_read+0x5b7/0x6e0 [ 70.500451][ T8461] ? ksys_lseek+0x1b0/0x1b0 [ 70.504947][ T8461] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 70.510940][ T8461] vfs_read+0x35c/0x570 [ 70.515093][ T8461] ksys_read+0x1ee/0x250 [ 70.519362][ T8461] ? vfs_write+0xa40/0xa40 [ 70.523771][ T8461] ? syscall_enter_from_user_mode+0x27/0x70 [ 70.529660][ T8461] do_syscall_64+0x3a/0xb0 [ 70.534175][ T8461] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.540078][ T8461] RIP: 0033:0x4af19b [ 70.543964][ T8461] 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 [ 70.563561][ T8461] RSP: 002b:000000c0002f7868 EFLAGS: 00000216 ORIG_RAX: 0000000000000000 [ 70.571966][ T8461] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 70.579927][ T8461] RDX: 0000000000001000 RSI: 000000c00017a000 RDI: 0000000000000006 [ 70.587891][ T8461] RBP: 000000c0002f78b8 R08: 0000000000000001 R09: 0000000000000002 [ 70.595857][ T8461] R10: 0000000000002068 R11: 0000000000000216 R12: ffffffffffffffff [ 70.603818][ T8461] R13: 0000000000002000 R14: 0000000000000002 R15: 0000000000000002 [ 70.611793][ T8461] ================================================================== [ 70.619834][ T8461] Disabling lock debugging due to kernel taint [ 70.626538][ T8461] Kernel panic - not syncing: panic_on_warn set ... [ 70.633126][ T8461] CPU: 0 PID: 8461 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 70.644068][ T8461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.654132][ T8461] Call Trace: [ 70.657394][ T8461] dump_stack+0x141/0x1d7 [ 70.661710][ T8461] panic+0x306/0x73d [ 70.665588][ T8461] ? __warn_printk+0xf3/0xf3 [ 70.670162][ T8461] ? preempt_schedule_common+0x59/0xc0 [ 70.675643][ T8461] ? copyout.part.0+0xd7/0x110 [ 70.680387][ T8461] ? preempt_schedule_thunk+0x16/0x18 [ 70.685785][ T8461] ? trace_hardirqs_on+0x38/0x1c0 [ 70.690802][ T8461] ? trace_hardirqs_on+0x51/0x1c0 [ 70.695805][ T8461] ? copyout.part.0+0xd7/0x110 [ 70.700550][ T8461] ? copyout.part.0+0xd7/0x110 [ 70.705337][ T8461] end_report.cold+0x5a/0x5a [ 70.709909][ T8461] kasan_report.cold+0x6a/0xd8 [ 70.714654][ T8461] ? copyout.part.0+0xd7/0x110 [ 70.719438][ T8461] kasan_check_range+0x13d/0x180 [ 70.724358][ T8461] copyout.part.0+0xd7/0x110 [ 70.728927][ T8461] _copy_to_iter+0x2b4/0x1850 [ 70.733582][ T8461] ? lock_chain_count+0x20/0x20 [ 70.738415][ T8461] ? _copy_from_iter_nocache+0x1440/0x1440 [ 70.744201][ T8461] ? tcp_mstamp_refresh+0x12/0xa0 [ 70.749245][ T8461] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.755473][ T8461] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.761175][ T8461] ? __virt_addr_valid+0x5d/0x2d0 [ 70.766183][ T8461] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.772409][ T8461] ? __phys_addr_symbol+0x2c/0x70 [ 70.777410][ T8461] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.783113][ T8461] ? __check_object_size+0x18a/0x3f0 [ 70.788379][ T8461] simple_copy_to_iter+0x4c/0x70 [ 70.793346][ T8461] __skb_datagram_iter+0x4a7/0x770 [ 70.798482][ T8461] ? zerocopy_sg_from_iter+0x110/0x110 [ 70.803961][ T8461] skb_copy_datagram_iter+0x40/0x50 [ 70.809139][ T8461] tcp_recvmsg_locked+0x1048/0x22f0 [ 70.814323][ T8461] ? tcp_splice_read+0x8b0/0x8b0 [ 70.819241][ T8461] ? mark_held_locks+0x9f/0xe0 [ 70.823986][ T8461] ? __local_bh_enable_ip+0xa0/0x120 [ 70.829251][ T8461] tcp_recvmsg+0x134/0x550 [ 70.833649][ T8461] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 70.839001][ T8461] ? aa_sk_perm+0x311/0xab0 [ 70.843483][ T8461] inet_recvmsg+0x11b/0x5e0 [ 70.847968][ T8461] ? inet_sendpage+0x140/0x140 [ 70.852729][ T8461] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.858952][ T8461] ? security_socket_recvmsg+0x8f/0xc0 [ 70.864409][ T8461] sock_read_iter+0x33c/0x470 [ 70.869068][ T8461] ? ____sys_recvmsg+0x600/0x600 [ 70.873986][ T8461] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.880208][ T8461] ? fsnotify+0xa58/0x1060 [ 70.884605][ T8461] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.890827][ T8461] new_sync_read+0x5b7/0x6e0 [ 70.895414][ T8461] ? ksys_lseek+0x1b0/0x1b0 [ 70.899895][ T8461] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 70.905859][ T8461] vfs_read+0x35c/0x570 [ 70.909996][ T8461] ksys_read+0x1ee/0x250 [ 70.914225][ T8461] ? vfs_write+0xa40/0xa40 [ 70.918635][ T8461] ? syscall_enter_from_user_mode+0x27/0x70 [ 70.924523][ T8461] do_syscall_64+0x3a/0xb0 [ 70.928932][ T8461] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.934816][ T8461] RIP: 0033:0x4af19b [ 70.938688][ T8461] 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 [ 70.958273][ T8461] RSP: 002b:000000c0002f7868 EFLAGS: 00000216 ORIG_RAX: 0000000000000000 [ 70.966668][ T8461] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 70.974631][ T8461] RDX: 0000000000001000 RSI: 000000c00017a000 RDI: 0000000000000006 [ 70.983190][ T8461] RBP: 000000c0002f78b8 R08: 0000000000000001 R09: 0000000000000002 [ 70.991137][ T8461] R10: 0000000000002068 R11: 0000000000000216 R12: ffffffffffffffff [ 70.999089][ T8461] R13: 0000000000002000 R14: 0000000000000002 R15: 0000000000000002 [ 71.007700][ T8461] Kernel Offset: disabled [ 71.012012][ T8461] Rebooting in 86400 seconds..