Warning: Permanently added '10.128.0.29' (ECDSA) to the list of known hosts. 2021/05/04 03:30:27 fuzzer started 2021/05/04 03:30:28 dialing manager at 10.128.0.169:34381 2021/05/04 03:30:28 syscalls: 3586 2021/05/04 03:30:28 code coverage: enabled 2021/05/04 03:30:28 comparison tracing: enabled 2021/05/04 03:30:28 extra coverage: enabled 2021/05/04 03:30:28 setuid sandbox: enabled 2021/05/04 03:30:28 namespace sandbox: enabled 2021/05/04 03:30:28 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/04 03:30:28 fault injection: enabled 2021/05/04 03:30:28 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/04 03:30:28 net packet injection: enabled 2021/05/04 03:30:28 net device setup: enabled 2021/05/04 03:30:28 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/04 03:30:28 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/04 03:30:28 USB emulation: enabled 2021/05/04 03:30:28 hci packet injection: enabled 2021/05/04 03:30:28 wifi device emulation: enabled 2021/05/04 03:30:28 802.15.4 emulation: enabled 2021/05/04 03:30:28 fetching corpus: 0, signal 0/2000 (executing program) 2021/05/04 03:30:28 fetching corpus: 50, signal 53067/56759 (executing program) 2021/05/04 03:30:28 fetching corpus: 100, signal 79638/84915 (executing program) 2021/05/04 03:30:28 fetching corpus: 150, signal 104605/111324 (executing program) 2021/05/04 03:30:28 fetching corpus: 200, signal 128935/136916 (executing program) 2021/05/04 03:30:29 fetching corpus: 250, signal 155353/164377 (executing program) 2021/05/04 03:30:29 fetching corpus: 300, signal 170317/180515 (executing program) 2021/05/04 03:30:29 fetching corpus: 350, signal 179765/191135 (executing program) 2021/05/04 03:30:29 fetching corpus: 400, signal 188806/201334 (executing program) 2021/05/04 03:30:29 fetching corpus: 450, signal 202798/216205 (executing program) 2021/05/04 03:30:29 fetching corpus: 500, signal 213992/228330 (executing program) syzkaller login: [ 69.329846][ T8423] ================================================================== [ 69.338233][ T8423] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 69.345710][ T8423] Read of size 944 at addr 108548c02eb78010 by task syz-fuzzer/8423 [ 69.354125][ T8423] [ 69.356457][ T8423] CPU: 0 PID: 8423 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 69.366000][ T8423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.376067][ T8423] Call Trace: [ 69.379342][ T8423] dump_stack+0x141/0x1d7 [ 69.383685][ T8423] ? copyout.part.0+0xd7/0x110 [ 69.388442][ T8423] kasan_report.cold+0x5f/0xd8 [ 69.393211][ T8423] ? copyout.part.0+0xd7/0x110 [ 69.397997][ T8423] kasan_check_range+0x13d/0x180 [ 69.402950][ T8423] copyout.part.0+0xd7/0x110 [ 69.407548][ T8423] _copy_to_iter+0x2b4/0x1850 [ 69.412232][ T8423] ? lock_chain_count+0x20/0x20 [ 69.417098][ T8423] ? _copy_from_iter_nocache+0x1440/0x1440 [ 69.423175][ T8423] ? tcp_mstamp_refresh+0x12/0xa0 [ 69.428205][ T8423] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 69.434456][ T8423] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 69.440172][ T8423] ? __virt_addr_valid+0x5d/0x2d0 [ 69.445207][ T8423] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 69.451447][ T8423] ? __phys_addr_symbol+0x2c/0x70 [ 69.456474][ T8423] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 69.462209][ T8423] ? __check_object_size+0x18a/0x3f0 [ 69.467497][ T8423] simple_copy_to_iter+0x4c/0x70 [ 69.472435][ T8423] __skb_datagram_iter+0x4a7/0x770 [ 69.477539][ T8423] ? zerocopy_sg_from_iter+0x110/0x110 [ 69.482990][ T8423] skb_copy_datagram_iter+0x40/0x50 [ 69.488180][ T8423] tcp_recvmsg_locked+0x1048/0x22f0 [ 69.493490][ T8423] ? tcp_splice_read+0x8b0/0x8b0 [ 69.498422][ T8423] ? mark_held_locks+0x9f/0xe0 [ 69.503203][ T8423] ? __local_bh_enable_ip+0xa0/0x120 [ 69.508498][ T8423] tcp_recvmsg+0x134/0x550 [ 69.512924][ T8423] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 69.518292][ T8423] ? aa_sk_perm+0x311/0xab0 [ 69.523070][ T8423] inet_recvmsg+0x11b/0x5e0 [ 69.527587][ T8423] ? inet_sendpage+0x140/0x140 [ 69.532783][ T8423] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.539042][ T8423] ? security_socket_recvmsg+0x8f/0xc0 [ 69.545315][ T8423] sock_read_iter+0x33c/0x470 [ 69.550011][ T8423] ? ____sys_recvmsg+0x600/0x600 [ 69.554949][ T8423] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.561200][ T8423] ? fsnotify+0xa58/0x1060 [ 69.565629][ T8423] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.571873][ T8423] new_sync_read+0x5b7/0x6e0 [ 69.576463][ T8423] ? ksys_lseek+0x1b0/0x1b0 [ 69.580963][ T8423] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 69.586970][ T8423] vfs_read+0x35c/0x570 [ 69.591120][ T8423] ksys_read+0x1ee/0x250 [ 69.595375][ T8423] ? vfs_write+0xa40/0xa40 [ 69.599800][ T8423] ? syscall_enter_from_user_mode+0x27/0x70 [ 69.605707][ T8423] do_syscall_64+0x3a/0xb0 [ 69.610134][ T8423] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 69.616041][ T8423] RIP: 0033:0x4af19b [ 69.619942][ T8423] 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 [ 69.639632][ T8423] RSP: 002b:000000c00040d850 EFLAGS: 00000206 ORIG_RAX: 0000000000000000 [ 69.648044][ T8423] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 69.656560][ T8423] RDX: 0000000000001000 RSI: 000000c000252000 RDI: 0000000000000006 [ 69.664545][ T8423] RBP: 000000c00040d8a0 R08: 0000000000000001 R09: 0000000000000002 [ 69.672525][ T8423] R10: 0000000000000891 R11: 0000000000000206 R12: ffffffffffffffff [ 69.680596][ T8423] R13: 0000000000002000 R14: 0000000000000002 R15: 0000000000000002 [ 69.688577][ T8423] ================================================================== [ 69.697069][ T8423] Disabling lock debugging due to kernel taint [ 69.705195][ T8423] Kernel panic - not syncing: panic_on_warn set ... [ 69.711825][ T8423] CPU: 1 PID: 8423 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 69.722858][ T8423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.732920][ T8423] Call Trace: [ 69.736224][ T8423] dump_stack+0x141/0x1d7 [ 69.740572][ T8423] panic+0x306/0x73d [ 69.744524][ T8423] ? __warn_printk+0xf3/0xf3 [ 69.749121][ T8423] ? preempt_schedule_common+0x59/0xc0 [ 69.754592][ T8423] ? copyout.part.0+0xd7/0x110 [ 69.759362][ T8423] ? preempt_schedule_thunk+0x16/0x18 [ 69.764739][ T8423] ? trace_hardirqs_on+0x38/0x1c0 [ 69.769767][ T8423] ? trace_hardirqs_on+0x51/0x1c0 [ 69.777502][ T8423] ? copyout.part.0+0xd7/0x110 [ 69.782297][ T8423] ? copyout.part.0+0xd7/0x110 [ 69.787153][ T8423] end_report.cold+0x5a/0x5a [ 69.791852][ T8423] kasan_report.cold+0x6a/0xd8 [ 69.796648][ T8423] ? copyout.part.0+0xd7/0x110 [ 69.801441][ T8423] kasan_check_range+0x13d/0x180 [ 69.806496][ T8423] copyout.part.0+0xd7/0x110 [ 69.811092][ T8423] _copy_to_iter+0x2b4/0x1850 [ 69.815806][ T8423] ? lock_chain_count+0x20/0x20 [ 69.820673][ T8423] ? _copy_from_iter_nocache+0x1440/0x1440 [ 69.826504][ T8423] ? tcp_mstamp_refresh+0x12/0xa0 [ 69.831536][ T8423] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 69.837785][ T8423] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 69.843512][ T8423] ? __virt_addr_valid+0x5d/0x2d0 [ 69.848540][ T8423] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 69.854840][ T8423] ? __phys_addr_symbol+0x2c/0x70 [ 69.859877][ T8423] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 69.865601][ T8423] ? __check_object_size+0x18a/0x3f0 [ 69.870900][ T8423] simple_copy_to_iter+0x4c/0x70 [ 69.875933][ T8423] __skb_datagram_iter+0x4a7/0x770 [ 69.881054][ T8423] ? zerocopy_sg_from_iter+0x110/0x110 [ 69.886513][ T8423] skb_copy_datagram_iter+0x40/0x50 [ 69.891711][ T8423] tcp_recvmsg_locked+0x1048/0x22f0 [ 69.896924][ T8423] ? tcp_splice_read+0x8b0/0x8b0 [ 69.901865][ T8423] ? mark_held_locks+0x9f/0xe0 [ 69.906651][ T8423] ? __local_bh_enable_ip+0xa0/0x120 [ 69.911946][ T8423] tcp_recvmsg+0x134/0x550 [ 69.916387][ T8423] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 69.921782][ T8423] ? aa_sk_perm+0x311/0xab0 [ 69.926302][ T8423] inet_recvmsg+0x11b/0x5e0 [ 69.930827][ T8423] ? inet_sendpage+0x140/0x140 [ 69.935599][ T8423] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.941851][ T8423] ? security_socket_recvmsg+0x8f/0xc0 [ 69.947323][ T8423] sock_read_iter+0x33c/0x470 [ 69.952022][ T8423] ? ____sys_recvmsg+0x600/0x600 [ 69.956971][ T8423] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.963222][ T8423] ? fsnotify+0xa58/0x1060 [ 69.967656][ T8423] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.973908][ T8423] new_sync_read+0x5b7/0x6e0 [ 69.978518][ T8423] ? ksys_lseek+0x1b0/0x1b0 [ 69.983021][ T8423] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 69.989046][ T8423] vfs_read+0x35c/0x570 [ 69.993222][ T8423] ksys_read+0x1ee/0x250 [ 69.997476][ T8423] ? vfs_write+0xa40/0xa40 [ 70.001908][ T8423] ? syscall_enter_from_user_mode+0x27/0x70 [ 70.007829][ T8423] do_syscall_64+0x3a/0xb0 [ 70.012274][ T8423] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.018175][ T8423] RIP: 0033:0x4af19b [ 70.022072][ T8423] 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 [ 70.041698][ T8423] RSP: 002b:000000c00040d850 EFLAGS: 00000206 ORIG_RAX: 0000000000000000 [ 70.050118][ T8423] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 70.058088][ T8423] RDX: 0000000000001000 RSI: 000000c000252000 RDI: 0000000000000006 [ 70.066058][ T8423] RBP: 000000c00040d8a0 R08: 0000000000000001 R09: 0000000000000002 [ 70.074027][ T8423] R10: 0000000000000891 R11: 0000000000000206 R12: ffffffffffffffff [ 70.082024][ T8423] R13: 0000000000002000 R14: 0000000000000002 R15: 0000000000000002 [ 70.090472][ T8423] Kernel Offset: disabled [ 70.094822][ T8423] Rebooting in 86400 seconds..