Warning: Permanently added '10.128.0.141' (ECDSA) to the list of known hosts. 2021/05/01 13:07:28 fuzzer started 2021/05/01 13:07:28 dialing manager at 10.128.0.169:44661 2021/05/01 13:07:28 syscalls: 3571 2021/05/01 13:07:28 code coverage: enabled 2021/05/01 13:07:28 comparison tracing: enabled 2021/05/01 13:07:28 extra coverage: enabled 2021/05/01 13:07:28 setuid sandbox: enabled 2021/05/01 13:07:28 namespace sandbox: enabled 2021/05/01 13:07:28 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/01 13:07:28 fault injection: enabled 2021/05/01 13:07:28 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/01 13:07:28 net packet injection: enabled 2021/05/01 13:07:28 net device setup: enabled 2021/05/01 13:07:28 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/01 13:07:28 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/01 13:07:28 USB emulation: enabled 2021/05/01 13:07:28 hci packet injection: enabled 2021/05/01 13:07:28 wifi device emulation: enabled 2021/05/01 13:07:28 802.15.4 emulation: enabled 2021/05/01 13:07:28 fetching corpus: 0, signal 0/2000 (executing program) syzkaller login: [ 70.548884][ T8426] ================================================================== [ 70.557178][ T8426] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 70.564678][ T8426] Read of size 2368 at addr 108548c02fc10010 by task syz-fuzzer/8426 [ 70.572762][ T8426] [ 70.575097][ T8426] CPU: 1 PID: 8426 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 70.584653][ T8426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.594724][ T8426] Call Trace: [ 70.598015][ T8426] dump_stack+0x141/0x1d7 [ 70.602390][ T8426] ? copyout.part.0+0xd7/0x110 [ 70.607172][ T8426] kasan_report.cold+0x5f/0xd8 [ 70.611966][ T8426] ? copyout.part.0+0xd7/0x110 [ 70.616752][ T8426] kasan_check_range+0x13d/0x180 [ 70.621713][ T8426] copyout.part.0+0xd7/0x110 [ 70.626328][ T8426] _copy_to_iter+0x2b4/0x1850 [ 70.631032][ T8426] ? lock_chain_count+0x20/0x20 [ 70.635905][ T8426] ? _copy_from_iter_nocache+0x1440/0x1440 [ 70.641743][ T8426] ? tcp_mstamp_refresh+0x12/0xa0 [ 70.646761][ T8426] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.653012][ T8426] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.658724][ T8426] ? __virt_addr_valid+0x5d/0x2d0 [ 70.663738][ T8426] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.669995][ T8426] ? __phys_addr_symbol+0x2c/0x70 [ 70.675049][ T8426] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.680779][ T8426] ? __check_object_size+0x18a/0x3f0 [ 70.686109][ T8426] simple_copy_to_iter+0x4c/0x70 [ 70.691036][ T8426] __skb_datagram_iter+0x4a7/0x770 [ 70.696135][ T8426] ? zerocopy_sg_from_iter+0x110/0x110 [ 70.701588][ T8426] skb_copy_datagram_iter+0x40/0x50 [ 70.706774][ T8426] tcp_recvmsg_locked+0x1048/0x22f0 [ 70.711970][ T8426] ? tcp_splice_read+0x8b0/0x8b0 [ 70.716893][ T8426] ? mark_held_locks+0x9f/0xe0 [ 70.721648][ T8426] ? __local_bh_enable_ip+0xa0/0x120 [ 70.726941][ T8426] tcp_recvmsg+0x134/0x550 [ 70.731352][ T8426] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 70.736718][ T8426] ? aa_sk_perm+0x311/0xab0 [ 70.741210][ T8426] inet_recvmsg+0x11b/0x5e0 [ 70.745707][ T8426] ? inet_sendpage+0x140/0x140 [ 70.750464][ T8426] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.756712][ T8426] ? security_socket_recvmsg+0x8f/0xc0 [ 70.762178][ T8426] sock_read_iter+0x33c/0x470 [ 70.766864][ T8426] ? ____sys_recvmsg+0x600/0x600 [ 70.771835][ T8426] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.778081][ T8426] ? fsnotify+0xa58/0x1060 [ 70.782490][ T8426] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.788740][ T8426] new_sync_read+0x5b7/0x6e0 [ 70.793322][ T8426] ? ksys_lseek+0x1b0/0x1b0 [ 70.797841][ T8426] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 70.803848][ T8426] vfs_read+0x35c/0x570 [ 70.807998][ T8426] ksys_read+0x1ee/0x250 [ 70.812240][ T8426] ? vfs_write+0xa40/0xa40 [ 70.816658][ T8426] ? syscall_enter_from_user_mode+0x27/0x70 [ 70.822543][ T8426] do_syscall_64+0x3a/0xb0 [ 70.826966][ T8426] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.832850][ T8426] RIP: 0033:0x4af19b [ 70.836747][ T8426] 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 [ 70.856359][ T8426] RSP: 002b:000000c000419828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 70.864792][ T8426] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 70.872755][ T8426] RDX: 0000000000001000 RSI: 000000c00023e000 RDI: 0000000000000006 [ 70.880974][ T8426] RBP: 000000c000419878 R08: 0000000000000001 R09: 0000000000000002 [ 70.888944][ T8426] R10: 000000000000749a R11: 0000000000000212 R12: 0000000000007496 [ 70.896912][ T8426] R13: 0000000000000080 R14: 0000000000000002 R15: 0000000000000002 [ 70.904882][ T8426] ================================================================== [ 70.912935][ T8426] Disabling lock debugging due to kernel taint [ 70.921095][ T8426] Kernel panic - not syncing: panic_on_warn set ... [ 70.927695][ T8426] CPU: 0 PID: 8426 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 70.938698][ T8426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.948738][ T8426] Call Trace: [ 70.951999][ T8426] dump_stack+0x141/0x1d7 [ 70.956318][ T8426] panic+0x306/0x73d [ 70.960219][ T8426] ? __warn_printk+0xf3/0xf3 [ 70.964797][ T8426] ? preempt_schedule_common+0x59/0xc0 [ 70.970254][ T8426] ? copyout.part.0+0xd7/0x110 [ 70.976194][ T8426] ? preempt_schedule_thunk+0x16/0x18 [ 70.981570][ T8426] ? trace_hardirqs_on+0x38/0x1c0 [ 70.986581][ T8426] ? trace_hardirqs_on+0x51/0x1c0 [ 70.991605][ T8426] ? copyout.part.0+0xd7/0x110 [ 70.997062][ T8426] ? copyout.part.0+0xd7/0x110 [ 71.001824][ T8426] end_report.cold+0x5a/0x5a [ 71.006414][ T8426] kasan_report.cold+0x6a/0xd8 [ 71.011161][ T8426] ? copyout.part.0+0xd7/0x110 [ 71.015995][ T8426] kasan_check_range+0x13d/0x180 [ 71.020929][ T8426] copyout.part.0+0xd7/0x110 [ 71.025502][ T8426] _copy_to_iter+0x2b4/0x1850 [ 71.030162][ T8426] ? lock_chain_count+0x20/0x20 [ 71.035013][ T8426] ? _copy_from_iter_nocache+0x1440/0x1440 [ 71.040804][ T8426] ? tcp_mstamp_refresh+0x12/0xa0 [ 71.045836][ T8426] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.052070][ T8426] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 71.057787][ T8426] ? __virt_addr_valid+0x5d/0x2d0 [ 71.062808][ T8426] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 71.069045][ T8426] ? __phys_addr_symbol+0x2c/0x70 [ 71.074052][ T8426] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 71.079767][ T8426] ? __check_object_size+0x18a/0x3f0 [ 71.085038][ T8426] simple_copy_to_iter+0x4c/0x70 [ 71.089961][ T8426] __skb_datagram_iter+0x4a7/0x770 [ 71.095068][ T8426] ? zerocopy_sg_from_iter+0x110/0x110 [ 71.100542][ T8426] skb_copy_datagram_iter+0x40/0x50 [ 71.105729][ T8426] tcp_recvmsg_locked+0x1048/0x22f0 [ 71.110933][ T8426] ? tcp_splice_read+0x8b0/0x8b0 [ 71.115892][ T8426] ? mark_held_locks+0x9f/0xe0 [ 71.120643][ T8426] ? __local_bh_enable_ip+0xa0/0x120 [ 71.125922][ T8426] tcp_recvmsg+0x134/0x550 [ 71.130334][ T8426] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 71.135709][ T8426] ? aa_sk_perm+0x311/0xab0 [ 71.140240][ T8426] inet_recvmsg+0x11b/0x5e0 [ 71.144733][ T8426] ? inet_sendpage+0x140/0x140 [ 71.149491][ T8426] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.155731][ T8426] ? security_socket_recvmsg+0x8f/0xc0 [ 71.161179][ T8426] sock_read_iter+0x33c/0x470 [ 71.165844][ T8426] ? ____sys_recvmsg+0x600/0x600 [ 71.170768][ T8426] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.176994][ T8426] ? fsnotify+0xa58/0x1060 [ 71.181393][ T8426] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.187618][ T8426] new_sync_read+0x5b7/0x6e0 [ 71.192190][ T8426] ? ksys_lseek+0x1b0/0x1b0 [ 71.196676][ T8426] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 71.202754][ T8426] vfs_read+0x35c/0x570 [ 71.206910][ T8426] ksys_read+0x1ee/0x250 [ 71.211139][ T8426] ? vfs_write+0xa40/0xa40 [ 71.215539][ T8426] ? syscall_enter_from_user_mode+0x27/0x70 [ 71.221435][ T8426] do_syscall_64+0x3a/0xb0 [ 71.225955][ T8426] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.231855][ T8426] RIP: 0033:0x4af19b [ 71.235742][ T8426] 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 [ 71.255341][ T8426] RSP: 002b:000000c000419828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 71.263742][ T8426] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 71.271697][ T8426] RDX: 0000000000001000 RSI: 000000c00023e000 RDI: 0000000000000006 [ 71.279663][ T8426] RBP: 000000c000419878 R08: 0000000000000001 R09: 0000000000000002 [ 71.287614][ T8426] R10: 000000000000749a R11: 0000000000000212 R12: 0000000000007496 [ 71.295569][ T8426] R13: 0000000000000080 R14: 0000000000000002 R15: 0000000000000002 [ 71.304120][ T8426] Kernel Offset: disabled [ 71.308435][ T8426] Rebooting in 86400 seconds..