Warning: Permanently added '10.128.0.77' (ECDSA) to the list of known hosts. 2021/05/03 07:18:33 fuzzer started 2021/05/03 07:18:33 dialing manager at 10.128.0.169:44661 2021/05/03 07:18:34 syscalls: 3571 2021/05/03 07:18:34 code coverage: enabled 2021/05/03 07:18:34 comparison tracing: enabled 2021/05/03 07:18:34 extra coverage: enabled 2021/05/03 07:18:34 setuid sandbox: enabled 2021/05/03 07:18:34 namespace sandbox: enabled 2021/05/03 07:18:34 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/03 07:18:34 fault injection: enabled 2021/05/03 07:18:34 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/03 07:18:34 net packet injection: enabled 2021/05/03 07:18:34 net device setup: enabled 2021/05/03 07:18:34 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/03 07:18:34 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/03 07:18:34 USB emulation: enabled 2021/05/03 07:18:34 hci packet injection: enabled 2021/05/03 07:18:34 wifi device emulation: enabled 2021/05/03 07:18:34 802.15.4 emulation: enabled 2021/05/03 07:18:34 fetching corpus: 0, signal 0/2000 (executing program) 2021/05/03 07:18:34 fetching corpus: 50, signal 46173/49914 (executing program) 2021/05/03 07:18:34 fetching corpus: 100, signal 85258/90617 (executing program) 2021/05/03 07:18:34 fetching corpus: 150, signal 111686/118549 (executing program) 2021/05/03 07:18:34 fetching corpus: 200, signal 132595/140865 (executing program) 2021/05/03 07:18:34 fetching corpus: 250, signal 151810/161409 (executing program) 2021/05/03 07:18:34 fetching corpus: 300, signal 174096/184921 (executing program) 2021/05/03 07:18:35 fetching corpus: 350, signal 188225/200352 (executing program) syzkaller login: [ 69.435343][ T8430] ================================================================== [ 69.443553][ T8430] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 69.451022][ T8430] Read of size 1072 at addr 108548c02e578010 by task syz-fuzzer/8430 [ 69.459067][ T8430] [ 69.461375][ T8430] CPU: 0 PID: 8430 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 69.470893][ T8430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.480927][ T8430] Call Trace: [ 69.484190][ T8430] dump_stack+0x141/0x1d7 [ 69.488518][ T8430] ? copyout.part.0+0xd7/0x110 [ 69.493265][ T8430] kasan_report.cold+0x5f/0xd8 [ 69.498015][ T8430] ? copyout.part.0+0xd7/0x110 [ 69.502762][ T8430] kasan_check_range+0x13d/0x180 [ 69.507718][ T8430] copyout.part.0+0xd7/0x110 [ 69.512292][ T8430] _copy_to_iter+0x2b4/0x1850 [ 69.516954][ T8430] ? lock_chain_count+0x20/0x20 [ 69.521790][ T8430] ? ip_local_deliver_finish+0x240/0x370 [ 69.527495][ T8430] ? _copy_from_iter_nocache+0x1440/0x1440 [ 69.533280][ T8430] ? ip_local_deliver+0x195/0x200 [ 69.538288][ T8430] ? ip_sublist_rcv_finish+0x9a/0x2c0 [ 69.543668][ T8430] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 69.549894][ T8430] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 69.555605][ T8430] ? __virt_addr_valid+0x5d/0x2d0 [ 69.560625][ T8430] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 69.566855][ T8430] ? __phys_addr_symbol+0x2c/0x70 [ 69.571869][ T8430] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 69.577583][ T8430] ? __check_object_size+0x18a/0x3f0 [ 69.582909][ T8430] simple_copy_to_iter+0x4c/0x70 [ 69.587834][ T8430] __skb_datagram_iter+0x4a7/0x770 [ 69.592933][ T8430] ? zerocopy_sg_from_iter+0x110/0x110 [ 69.598377][ T8430] skb_copy_datagram_iter+0x40/0x50 [ 69.603569][ T8430] tcp_recvmsg_locked+0x1048/0x22f0 [ 69.608760][ T8430] ? tcp_splice_read+0x8b0/0x8b0 [ 69.613681][ T8430] ? mark_held_locks+0x9f/0xe0 [ 69.618432][ T8430] ? __local_bh_enable_ip+0xa0/0x120 [ 69.623700][ T8430] tcp_recvmsg+0x134/0x550 [ 69.628100][ T8430] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 69.633469][ T8430] ? aa_sk_perm+0x311/0xab0 [ 69.638005][ T8430] inet_recvmsg+0x11b/0x5e0 [ 69.642497][ T8430] ? inet_sendpage+0x140/0x140 [ 69.647246][ T8430] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.653493][ T8430] ? security_socket_recvmsg+0x8f/0xc0 [ 69.658947][ T8430] sock_read_iter+0x33c/0x470 [ 69.663650][ T8430] ? ____sys_recvmsg+0x600/0x600 [ 69.668575][ T8430] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.674798][ T8430] ? fsnotify+0xa58/0x1060 [ 69.679197][ T8430] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.685424][ T8430] new_sync_read+0x5b7/0x6e0 [ 69.690000][ T8430] ? ksys_lseek+0x1b0/0x1b0 [ 69.694499][ T8430] vfs_read+0x35c/0x570 [ 69.698638][ T8430] ksys_read+0x1ee/0x250 [ 69.702880][ T8430] ? vfs_write+0xa40/0xa40 [ 69.707277][ T8430] ? syscall_enter_from_user_mode+0x27/0x70 [ 69.713155][ T8430] do_syscall_64+0x3a/0xb0 [ 69.717556][ T8430] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 69.723442][ T8430] RIP: 0033:0x4af19b [ 69.727318][ T8430] 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 [ 69.746919][ T8430] RSP: 002b:000000c00036d850 EFLAGS: 00000206 ORIG_RAX: 0000000000000000 [ 69.755339][ T8430] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 69.763292][ T8430] RDX: 0000000000001000 RSI: 000000c00051c000 RDI: 0000000000000006 [ 69.771244][ T8430] RBP: 000000c00036d8a0 R08: 0000000000000001 R09: 0000000000000002 [ 69.779195][ T8430] R10: 0000000000000aa3 R11: 0000000000000206 R12: ffffffffffffffff [ 69.787145][ T8430] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000002 [ 69.795109][ T8430] ================================================================== [ 69.803144][ T8430] Disabling lock debugging due to kernel taint [ 69.810719][ T8430] Kernel panic - not syncing: panic_on_warn set ... [ 69.817308][ T8430] CPU: 0 PID: 8430 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 69.828240][ T8430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.838283][ T8430] Call Trace: [ 69.841554][ T8430] dump_stack+0x141/0x1d7 [ 69.845883][ T8430] panic+0x306/0x73d [ 69.849773][ T8430] ? __warn_printk+0xf3/0xf3 [ 69.854344][ T8430] ? preempt_schedule_common+0x59/0xc0 [ 69.859795][ T8430] ? copyout.part.0+0xd7/0x110 [ 69.864539][ T8430] ? preempt_schedule_thunk+0x16/0x18 [ 69.869890][ T8430] ? trace_hardirqs_on+0x38/0x1c0 [ 69.874891][ T8430] ? trace_hardirqs_on+0x51/0x1c0 [ 69.879892][ T8430] ? copyout.part.0+0xd7/0x110 [ 69.884633][ T8430] ? copyout.part.0+0xd7/0x110 [ 69.889484][ T8430] end_report.cold+0x5a/0x5a [ 69.894065][ T8430] kasan_report.cold+0x6a/0xd8 [ 69.898812][ T8430] ? copyout.part.0+0xd7/0x110 [ 69.903609][ T8430] kasan_check_range+0x13d/0x180 [ 69.908531][ T8430] copyout.part.0+0xd7/0x110 [ 69.913144][ T8430] _copy_to_iter+0x2b4/0x1850 [ 69.917805][ T8430] ? lock_chain_count+0x20/0x20 [ 69.922641][ T8430] ? ip_local_deliver_finish+0x240/0x370 [ 69.928261][ T8430] ? _copy_from_iter_nocache+0x1440/0x1440 [ 69.934052][ T8430] ? ip_local_deliver+0x195/0x200 [ 69.939068][ T8430] ? ip_sublist_rcv_finish+0x9a/0x2c0 [ 69.944424][ T8430] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 69.950650][ T8430] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 69.956353][ T8430] ? __virt_addr_valid+0x5d/0x2d0 [ 69.961358][ T8430] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 69.967582][ T8430] ? __phys_addr_symbol+0x2c/0x70 [ 69.972587][ T8430] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 69.978291][ T8430] ? __check_object_size+0x18a/0x3f0 [ 69.983570][ T8430] simple_copy_to_iter+0x4c/0x70 [ 69.988490][ T8430] __skb_datagram_iter+0x4a7/0x770 [ 69.993580][ T8430] ? zerocopy_sg_from_iter+0x110/0x110 [ 69.999020][ T8430] skb_copy_datagram_iter+0x40/0x50 [ 70.004203][ T8430] tcp_recvmsg_locked+0x1048/0x22f0 [ 70.009387][ T8430] ? tcp_splice_read+0x8b0/0x8b0 [ 70.014325][ T8430] ? mark_held_locks+0x9f/0xe0 [ 70.019084][ T8430] ? __local_bh_enable_ip+0xa0/0x120 [ 70.024358][ T8430] tcp_recvmsg+0x134/0x550 [ 70.028772][ T8430] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 70.034127][ T8430] ? aa_sk_perm+0x311/0xab0 [ 70.038611][ T8430] inet_recvmsg+0x11b/0x5e0 [ 70.043100][ T8430] ? inet_sendpage+0x140/0x140 [ 70.047849][ T8430] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.054073][ T8430] ? security_socket_recvmsg+0x8f/0xc0 [ 70.059515][ T8430] sock_read_iter+0x33c/0x470 [ 70.064188][ T8430] ? ____sys_recvmsg+0x600/0x600 [ 70.069105][ T8430] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.075331][ T8430] ? fsnotify+0xa58/0x1060 [ 70.079738][ T8430] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.085972][ T8430] new_sync_read+0x5b7/0x6e0 [ 70.090542][ T8430] ? ksys_lseek+0x1b0/0x1b0 [ 70.095027][ T8430] vfs_read+0x35c/0x570 [ 70.099162][ T8430] ksys_read+0x1ee/0x250 [ 70.103382][ T8430] ? vfs_write+0xa40/0xa40 [ 70.107792][ T8430] ? syscall_enter_from_user_mode+0x27/0x70 [ 70.113680][ T8430] do_syscall_64+0x3a/0xb0 [ 70.118077][ T8430] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.123957][ T8430] RIP: 0033:0x4af19b [ 70.127842][ T8430] 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 [ 70.147427][ T8430] RSP: 002b:000000c00036d850 EFLAGS: 00000206 ORIG_RAX: 0000000000000000 [ 70.155817][ T8430] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 70.163780][ T8430] RDX: 0000000000001000 RSI: 000000c00051c000 RDI: 0000000000000006 [ 70.171738][ T8430] RBP: 000000c00036d8a0 R08: 0000000000000001 R09: 0000000000000002 [ 70.179773][ T8430] R10: 0000000000000aa3 R11: 0000000000000206 R12: ffffffffffffffff [ 70.187727][ T8430] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000002 [ 70.196485][ T8430] Kernel Offset: disabled [ 70.200808][ T8430] Rebooting in 86400 seconds..