Warning: Permanently added '10.128.0.238' (ECDSA) to the list of known hosts. 2021/05/02 06:24:56 fuzzer started 2021/05/02 06:24:57 dialing manager at 10.128.0.169:44661 2021/05/02 06:24:57 syscalls: 3571 2021/05/02 06:24:57 code coverage: enabled 2021/05/02 06:24:57 comparison tracing: enabled 2021/05/02 06:24:57 extra coverage: enabled 2021/05/02 06:24:57 setuid sandbox: enabled 2021/05/02 06:24:57 namespace sandbox: enabled 2021/05/02 06:24:57 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/02 06:24:57 fault injection: enabled 2021/05/02 06:24:57 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/02 06:24:57 net packet injection: enabled 2021/05/02 06:24:57 net device setup: enabled 2021/05/02 06:24:57 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/02 06:24:57 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/02 06:24:57 USB emulation: enabled 2021/05/02 06:24:57 hci packet injection: enabled 2021/05/02 06:24:57 wifi device emulation: enabled 2021/05/02 06:24:57 802.15.4 emulation: enabled 2021/05/02 06:24:57 fetching corpus: 0, signal 0/2000 (executing program) 2021/05/02 06:24:57 fetching corpus: 50, signal 51759/55497 (executing program) 2021/05/02 06:24:57 fetching corpus: 100, signal 84355/89723 (executing program) 2021/05/02 06:24:57 fetching corpus: 150, signal 106791/113708 (executing program) 2021/05/02 06:24:58 fetching corpus: 200, signal 132198/140543 (executing program) 2021/05/02 06:24:58 fetching corpus: 250, signal 146889/156629 (executing program) 2021/05/02 06:24:58 fetching corpus: 300, signal 160039/171155 (executing program) syzkaller login: [ 70.448963][ T8441] ================================================================== [ 70.457216][ T8441] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 70.465066][ T8441] Read of size 1600 at addr 108548c01d2a8010 by task syz-fuzzer/8441 [ 70.473151][ T8441] [ 70.475474][ T8441] CPU: 0 PID: 8441 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 70.485025][ T8441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.495081][ T8441] Call Trace: [ 70.498373][ T8441] dump_stack+0x141/0x1d7 [ 70.502733][ T8441] ? copyout.part.0+0xd7/0x110 [ 70.507506][ T8441] kasan_report.cold+0x5f/0xd8 [ 70.512286][ T8441] ? copyout.part.0+0xd7/0x110 [ 70.517064][ T8441] kasan_check_range+0x13d/0x180 [ 70.522030][ T8441] copyout.part.0+0xd7/0x110 [ 70.526634][ T8441] _copy_to_iter+0x2b4/0x1850 [ 70.531329][ T8441] ? lock_chain_count+0x20/0x20 [ 70.536195][ T8441] ? _copy_from_iter_nocache+0x1440/0x1440 [ 70.542018][ T8441] ? tcp_mstamp_refresh+0x12/0xa0 [ 70.547053][ T8441] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.553388][ T8441] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.559130][ T8441] ? __virt_addr_valid+0x5d/0x2d0 [ 70.564171][ T8441] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.570548][ T8441] ? __phys_addr_symbol+0x2c/0x70 [ 70.575578][ T8441] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.581308][ T8441] ? __check_object_size+0x18a/0x3f0 [ 70.586611][ T8441] simple_copy_to_iter+0x4c/0x70 [ 70.591584][ T8441] __skb_datagram_iter+0x4a7/0x770 [ 70.596716][ T8441] ? zerocopy_sg_from_iter+0x110/0x110 [ 70.602190][ T8441] skb_copy_datagram_iter+0x40/0x50 [ 70.607421][ T8441] tcp_recvmsg_locked+0x1048/0x22f0 [ 70.612652][ T8441] ? tcp_splice_read+0x8b0/0x8b0 [ 70.617611][ T8441] ? mark_held_locks+0x9f/0xe0 [ 70.622389][ T8441] ? __local_bh_enable_ip+0xa0/0x120 [ 70.627773][ T8441] tcp_recvmsg+0x134/0x550 [ 70.632203][ T8441] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 70.637597][ T8441] ? aa_sk_perm+0x311/0xab0 [ 70.642136][ T8441] inet_recvmsg+0x11b/0x5e0 [ 70.646663][ T8441] ? inet_sendpage+0x140/0x140 [ 70.651559][ T8441] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.657811][ T8441] ? security_socket_recvmsg+0x8f/0xc0 [ 70.664324][ T8441] sock_read_iter+0x33c/0x470 [ 70.669016][ T8441] ? ____sys_recvmsg+0x600/0x600 [ 70.673985][ T8441] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.680235][ T8441] ? fsnotify+0xa58/0x1060 [ 70.684662][ T8441] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.690921][ T8441] new_sync_read+0x5b7/0x6e0 [ 70.695520][ T8441] ? ksys_lseek+0x1b0/0x1b0 [ 70.700030][ T8441] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 70.706047][ T8441] vfs_read+0x35c/0x570 [ 70.710215][ T8441] ksys_read+0x1ee/0x250 [ 70.714463][ T8441] ? vfs_write+0xa40/0xa40 [ 70.718890][ T8441] ? syscall_enter_from_user_mode+0x27/0x70 [ 70.724810][ T8441] do_syscall_64+0x3a/0xb0 [ 70.729250][ T8441] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.735169][ T8441] RIP: 0033:0x4af19b [ 70.739067][ T8441] 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 [ 70.758684][ T8441] RSP: 002b:000000c0002bb828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 70.767135][ T8441] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af19b [ 70.775114][ T8441] RDX: 0000000000001000 RSI: 000000c000166000 RDI: 0000000000000006 [ 70.783089][ T8441] RBP: 000000c0002bb878 R08: 0000000000000001 R09: 0000000000000002 [ 70.792654][ T8441] R10: 0000000000005f38 R11: 0000000000000212 R12: 0000000000005f34 [ 70.800643][ T8441] R13: 0000000000000080 R14: 0000000000000002 R15: 0000000000000002 [ 70.810635][ T8441] ================================================================== [ 70.818822][ T8441] Disabling lock debugging due to kernel taint [ 70.832949][ T8441] Kernel panic - not syncing: panic_on_warn set ... [ 70.839555][ T8441] CPU: 0 PID: 8441 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 70.850512][ T8441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.860554][ T8441] Call Trace: [ 70.863827][ T8441] dump_stack+0x141/0x1d7 [ 70.868155][ T8441] panic+0x306/0x73d [ 70.872041][ T8441] ? __warn_printk+0xf3/0xf3 [ 70.876623][ T8441] ? preempt_schedule_common+0x59/0xc0 [ 70.882076][ T8441] ? copyout.part.0+0xd7/0x110 [ 70.886830][ T8441] ? preempt_schedule_thunk+0x16/0x18 [ 70.892198][ T8441] ? trace_hardirqs_on+0x38/0x1c0 [ 70.897276][ T8441] ? trace_hardirqs_on+0x51/0x1c0 [ 70.902303][ T8441] ? copyout.part.0+0xd7/0x110 [ 70.907062][ T8441] ? copyout.part.0+0xd7/0x110 [ 70.911833][ T8441] end_report.cold+0x5a/0x5a [ 70.916783][ T8441] kasan_report.cold+0x6a/0xd8 [ 70.921544][ T8441] ? copyout.part.0+0xd7/0x110 [ 70.926307][ T8441] kasan_check_range+0x13d/0x180 [ 70.931781][ T8441] copyout.part.0+0xd7/0x110 [ 70.936387][ T8441] _copy_to_iter+0x2b4/0x1850 [ 70.941111][ T8441] ? lock_chain_count+0x20/0x20 [ 70.945959][ T8441] ? _copy_from_iter_nocache+0x1440/0x1440 [ 70.951793][ T8441] ? tcp_mstamp_refresh+0x12/0xa0 [ 70.956805][ T8441] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.963181][ T8441] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.968911][ T8441] ? __virt_addr_valid+0x5d/0x2d0 [ 70.973940][ T8441] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.980180][ T8441] ? __phys_addr_symbol+0x2c/0x70 [ 70.985202][ T8441] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.991016][ T8441] ? __check_object_size+0x18a/0x3f0 [ 70.996304][ T8441] simple_copy_to_iter+0x4c/0x70 [ 71.001248][ T8441] __skb_datagram_iter+0x4a7/0x770 [ 71.006344][ T8441] ? zerocopy_sg_from_iter+0x110/0x110 [ 71.011791][ T8441] skb_copy_datagram_iter+0x40/0x50 [ 71.017086][ T8441] tcp_recvmsg_locked+0x1048/0x22f0 [ 71.022466][ T8441] ? tcp_splice_read+0x8b0/0x8b0 [ 71.027525][ T8441] ? mark_held_locks+0x9f/0xe0 [ 71.032289][ T8441] ? __local_bh_enable_ip+0xa0/0x120 [ 71.037649][ T8441] tcp_recvmsg+0x134/0x550 [ 71.042074][ T8441] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 71.047461][ T8441] ? aa_sk_perm+0x311/0xab0 [ 71.052223][ T8441] inet_recvmsg+0x11b/0x5e0 [ 71.056719][ T8441] ? inet_sendpage+0x140/0x140 [ 71.061559][ T8441] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.068754][ T8441] ? security_socket_recvmsg+0x8f/0xc0 [ 71.074209][ T8441] sock_read_iter+0x33c/0x470 [ 71.079368][ T8441] ? ____sys_recvmsg+0x600/0x600 [ 71.084346][ T8441] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.090606][ T8441] ? fsnotify+0xa58/0x1060 [ 71.095201][ T8441] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.101475][ T8441] new_sync_read+0x5b7/0x6e0 [ 71.106071][ T8441] ? ksys_lseek+0x1b0/0x1b0 [ 71.110589][ T8441] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 71.116558][ T8441] vfs_read+0x35c/0x570 [ 71.120811][ T8441] ksys_read+0x1ee/0x250 [ 71.125043][ T8441] ? vfs_write+0xa40/0xa40 [ 71.129546][ T8441] ? syscall_enter_from_user_mode+0x27/0x70 [ 71.135519][ T8441] do_syscall_64+0x3a/0xb0 [ 71.139929][ T8441] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.145820][ T8441] RIP: 0033:0x4af19b [ 71.149710][ T8441] 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 [ 71.176626][ T8441] RSP: 002b:000000c0002bb828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 71.185026][ T8441] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af19b [ 71.192985][ T8441] RDX: 0000000000001000 RSI: 000000c000166000 RDI: 0000000000000006 [ 71.200942][ T8441] RBP: 000000c0002bb878 R08: 0000000000000001 R09: 0000000000000002 [ 71.208894][ T8441] R10: 0000000000005f38 R11: 0000000000000212 R12: 0000000000005f34 [ 71.216851][ T8441] R13: 0000000000000080 R14: 0000000000000002 R15: 0000000000000002 [ 71.225361][ T8441] Kernel Offset: disabled [ 71.229788][ T8441] Rebooting in 86400 seconds..