Warning: Permanently added '10.128.0.181' (ECDSA) to the list of known hosts. 2021/05/03 18:33:21 fuzzer started 2021/05/03 18:33:21 dialing manager at 10.128.0.169:34381 2021/05/03 18:33:21 syscalls: 3586 2021/05/03 18:33:21 code coverage: enabled 2021/05/03 18:33:21 comparison tracing: enabled 2021/05/03 18:33:21 extra coverage: enabled 2021/05/03 18:33:21 setuid sandbox: enabled 2021/05/03 18:33:21 namespace sandbox: enabled 2021/05/03 18:33:21 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/03 18:33:21 fault injection: enabled 2021/05/03 18:33:21 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/03 18:33:21 net packet injection: enabled 2021/05/03 18:33:21 net device setup: enabled 2021/05/03 18:33:21 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/03 18:33:21 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/03 18:33:21 USB emulation: enabled 2021/05/03 18:33:21 hci packet injection: enabled 2021/05/03 18:33:21 wifi device emulation: enabled 2021/05/03 18:33:21 802.15.4 emulation: enabled 2021/05/03 18:33:21 fetching corpus: 0, signal 0/2000 (executing program) 2021/05/03 18:33:22 fetching corpus: 50, signal 49753/53399 (executing program) 2021/05/03 18:33:22 fetching corpus: 100, signal 79717/84815 (executing program) 2021/05/03 18:33:22 fetching corpus: 150, signal 110349/116687 (executing program) 2021/05/03 18:33:22 fetching corpus: 200, signal 127704/135332 (executing program) syzkaller login: [ 81.070374][ T8444] ================================================================== [ 81.078915][ T8444] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 81.089002][ T8444] Read of size 2400 at addr 108548c015510010 by task syz-fuzzer/8444 [ 81.100578][ T8444] [ 81.104247][ T8444] CPU: 0 PID: 8444 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 81.115235][ T8444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.128264][ T8444] Call Trace: [ 81.131698][ T8444] dump_stack+0x141/0x1d7 [ 81.136192][ T8444] ? copyout.part.0+0xd7/0x110 [ 81.141769][ T8444] kasan_report.cold+0x5f/0xd8 [ 81.146930][ T8444] ? copyout.part.0+0xd7/0x110 [ 81.151867][ T8444] kasan_check_range+0x13d/0x180 [ 81.157560][ T8444] copyout.part.0+0xd7/0x110 [ 81.164326][ T8444] _copy_to_iter+0x2b4/0x1850 [ 81.169511][ T8444] ? lock_chain_count+0x20/0x20 [ 81.175749][ T8444] ? _copy_from_iter_nocache+0x1440/0x1440 [ 81.182087][ T8444] ? tcp_mstamp_refresh+0x12/0xa0 [ 81.189548][ T8444] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 81.196549][ T8444] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 81.203735][ T8444] ? __virt_addr_valid+0x5d/0x2d0 [ 81.208911][ T8444] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 81.215554][ T8444] ? __phys_addr_symbol+0x2c/0x70 [ 81.220810][ T8444] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 81.226813][ T8444] ? __check_object_size+0x18a/0x3f0 [ 81.232345][ T8444] simple_copy_to_iter+0x4c/0x70 [ 81.237459][ T8444] __skb_datagram_iter+0x4a7/0x770 [ 81.242776][ T8444] ? zerocopy_sg_from_iter+0x110/0x110 [ 81.248383][ T8444] skb_copy_datagram_iter+0x40/0x50 [ 81.253821][ T8444] tcp_recvmsg_locked+0x1048/0x22f0 [ 81.259273][ T8444] ? tcp_splice_read+0x8b0/0x8b0 [ 81.264465][ T8444] ? mark_held_locks+0x9f/0xe0 [ 81.269275][ T8444] ? __local_bh_enable_ip+0xa0/0x120 [ 81.274595][ T8444] tcp_recvmsg+0x134/0x550 [ 81.279041][ T8444] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 81.284454][ T8444] ? aa_sk_perm+0x311/0xab0 [ 81.289012][ T8444] inet_recvmsg+0x11b/0x5e0 [ 81.293654][ T8444] ? inet_sendpage+0x140/0x140 [ 81.298450][ T8444] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 81.304703][ T8444] ? security_socket_recvmsg+0x8f/0xc0 [ 81.310183][ T8444] sock_read_iter+0x33c/0x470 [ 81.314906][ T8444] ? ____sys_recvmsg+0x600/0x600 [ 81.319872][ T8444] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 81.326142][ T8444] ? fsnotify+0xa58/0x1060 [ 81.330583][ T8444] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 81.337092][ T8444] new_sync_read+0x5b7/0x6e0 [ 81.342171][ T8444] ? ksys_lseek+0x1b0/0x1b0 [ 81.346949][ T8444] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 81.352959][ T8444] vfs_read+0x35c/0x570 [ 81.357296][ T8444] ksys_read+0x1ee/0x250 [ 81.361697][ T8444] ? vfs_write+0xa40/0xa40 [ 81.366126][ T8444] ? syscall_enter_from_user_mode+0x27/0x70 [ 81.372051][ T8444] do_syscall_64+0x3a/0xb0 [ 81.376503][ T8444] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 81.382460][ T8444] RIP: 0033:0x4af19b [ 81.386365][ T8444] 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 [ 81.406454][ T8444] RSP: 002b:000000c0000a5850 EFLAGS: 00000206 ORIG_RAX: 0000000000000000 [ 81.415075][ T8444] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 81.423204][ T8444] RDX: 0000000000001000 RSI: 000000c0001a6000 RDI: 0000000000000006 [ 81.431209][ T8444] RBP: 000000c0000a58a0 R08: 0000000000000001 R09: 0000000000000002 [ 81.439307][ T8444] R10: 0000000000002281 R11: 0000000000000206 R12: 000000000000227d [ 81.447315][ T8444] R13: 0000000000000200 R14: 0000000000000004 R15: 0000000000000002 [ 81.455375][ T8444] ================================================================== [ 81.463791][ T8444] Disabling lock debugging due to kernel taint [ 81.471348][ T8444] Kernel panic - not syncing: panic_on_warn set ... [ 81.478041][ T8444] CPU: 0 PID: 8444 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 81.488997][ T8444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.499195][ T8444] Call Trace: [ 81.502492][ T8444] dump_stack+0x141/0x1d7 [ 81.506838][ T8444] panic+0x306/0x73d [ 81.510875][ T8444] ? __warn_printk+0xf3/0xf3 [ 81.515592][ T8444] ? preempt_schedule_common+0x59/0xc0 [ 81.521300][ T8444] ? copyout.part.0+0xd7/0x110 [ 81.526091][ T8444] ? preempt_schedule_thunk+0x16/0x18 [ 81.531472][ T8444] ? trace_hardirqs_on+0x38/0x1c0 [ 81.536501][ T8444] ? trace_hardirqs_on+0x51/0x1c0 [ 81.541540][ T8444] ? copyout.part.0+0xd7/0x110 [ 81.546671][ T8444] ? copyout.part.0+0xd7/0x110 [ 81.551828][ T8444] end_report.cold+0x5a/0x5a [ 81.556678][ T8444] kasan_report.cold+0x6a/0xd8 [ 81.561447][ T8444] ? copyout.part.0+0xd7/0x110 [ 81.566249][ T8444] kasan_check_range+0x13d/0x180 [ 81.571197][ T8444] copyout.part.0+0xd7/0x110 [ 81.575823][ T8444] _copy_to_iter+0x2b4/0x1850 [ 81.580510][ T8444] ? lock_chain_count+0x20/0x20 [ 81.585370][ T8444] ? _copy_from_iter_nocache+0x1440/0x1440 [ 81.591599][ T8444] ? tcp_mstamp_refresh+0x12/0xa0 [ 81.596641][ T8444] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 81.602903][ T8444] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 81.608632][ T8444] ? __virt_addr_valid+0x5d/0x2d0 [ 81.613671][ T8444] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 81.620077][ T8444] ? __phys_addr_symbol+0x2c/0x70 [ 81.625129][ T8444] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 81.631209][ T8444] ? __check_object_size+0x18a/0x3f0 [ 81.637634][ T8444] simple_copy_to_iter+0x4c/0x70 [ 81.642755][ T8444] __skb_datagram_iter+0x4a7/0x770 [ 81.647967][ T8444] ? zerocopy_sg_from_iter+0x110/0x110 [ 81.653520][ T8444] skb_copy_datagram_iter+0x40/0x50 [ 81.658727][ T8444] tcp_recvmsg_locked+0x1048/0x22f0 [ 81.663957][ T8444] ? tcp_splice_read+0x8b0/0x8b0 [ 81.670770][ T8444] ? mark_held_locks+0x9f/0xe0 [ 81.677608][ T8444] ? __local_bh_enable_ip+0xa0/0x120 [ 81.683012][ T8444] tcp_recvmsg+0x134/0x550 [ 81.687523][ T8444] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 81.692922][ T8444] ? aa_sk_perm+0x311/0xab0 [ 81.698065][ T8444] inet_recvmsg+0x11b/0x5e0 [ 81.702602][ T8444] ? inet_sendpage+0x140/0x140 [ 81.707744][ T8444] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 81.714049][ T8444] ? security_socket_recvmsg+0x8f/0xc0 [ 81.719573][ T8444] sock_read_iter+0x33c/0x470 [ 81.724265][ T8444] ? ____sys_recvmsg+0x600/0x600 [ 81.729376][ T8444] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 81.735627][ T8444] ? fsnotify+0xa58/0x1060 [ 81.740218][ T8444] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 81.747167][ T8444] new_sync_read+0x5b7/0x6e0 [ 81.752648][ T8444] ? ksys_lseek+0x1b0/0x1b0 [ 81.757161][ T8444] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 81.763285][ T8444] vfs_read+0x35c/0x570 [ 81.767478][ T8444] ksys_read+0x1ee/0x250 [ 81.771743][ T8444] ? vfs_write+0xa40/0xa40 [ 81.776191][ T8444] ? syscall_enter_from_user_mode+0x27/0x70 [ 81.782118][ T8444] do_syscall_64+0x3a/0xb0 [ 81.786575][ T8444] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 81.792495][ T8444] RIP: 0033:0x4af19b [ 81.796563][ T8444] 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 [ 81.817032][ T8444] RSP: 002b:000000c0000a5850 EFLAGS: 00000206 ORIG_RAX: 0000000000000000 [ 81.825725][ T8444] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 81.833785][ T8444] RDX: 0000000000001000 RSI: 000000c0001a6000 RDI: 0000000000000006 [ 81.841764][ T8444] RBP: 000000c0000a58a0 R08: 0000000000000001 R09: 0000000000000002 [ 81.851040][ T8444] R10: 0000000000002281 R11: 0000000000000206 R12: 000000000000227d [ 81.859642][ T8444] R13: 0000000000000200 R14: 0000000000000004 R15: 0000000000000002 [ 81.868411][ T8444] Kernel Offset: disabled [ 81.872947][ T8444] Rebooting in 86400 seconds..