Warning: Permanently added '10.128.0.118' (ECDSA) to the list of known hosts. 2021/05/01 16:39:43 fuzzer started 2021/05/01 16:39:44 dialing manager at 10.128.0.169:44661 2021/05/01 16:39:44 syscalls: 3571 2021/05/01 16:39:44 code coverage: enabled 2021/05/01 16:39:44 comparison tracing: enabled 2021/05/01 16:39:44 extra coverage: enabled 2021/05/01 16:39:44 setuid sandbox: enabled 2021/05/01 16:39:44 namespace sandbox: enabled 2021/05/01 16:39:44 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/01 16:39:44 fault injection: enabled 2021/05/01 16:39:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/01 16:39:44 net packet injection: enabled 2021/05/01 16:39:44 net device setup: enabled 2021/05/01 16:39:44 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/01 16:39:44 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/01 16:39:44 USB emulation: enabled 2021/05/01 16:39:44 hci packet injection: enabled 2021/05/01 16:39:44 wifi device emulation: enabled 2021/05/01 16:39:44 802.15.4 emulation: enabled 2021/05/01 16:39:44 fetching corpus: 0, signal 0/2000 (executing program) 2021/05/01 16:39:45 fetching corpus: 50, signal 61723/65393 (executing program) 2021/05/01 16:39:45 fetching corpus: 100, signal 96502/101755 (executing program) 2021/05/01 16:39:45 fetching corpus: 150, signal 118998/125744 (executing program) 2021/05/01 16:39:45 fetching corpus: 200, signal 137918/146140 (executing program) 2021/05/01 16:39:45 fetching corpus: 250, signal 149925/159574 (executing program) syzkaller login: [ 68.681445][ T8447] ================================================================== [ 68.689757][ T8447] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 68.697226][ T8447] Read of size 1600 at addr 108548c015ef0010 by task syz-fuzzer/8447 [ 68.705296][ T8447] [ 68.708991][ T8447] CPU: 0 PID: 8447 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 68.718519][ T8447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.728554][ T8447] Call Trace: [ 68.731825][ T8447] dump_stack+0x141/0x1d7 [ 68.736160][ T8447] ? copyout.part.0+0xd7/0x110 [ 68.740906][ T8447] kasan_report.cold+0x5f/0xd8 [ 68.745664][ T8447] ? copyout.part.0+0xd7/0x110 [ 68.750410][ T8447] kasan_check_range+0x13d/0x180 [ 68.755344][ T8447] copyout.part.0+0xd7/0x110 [ 68.759918][ T8447] _copy_to_iter+0x2b4/0x1850 [ 68.765013][ T8447] ? lock_chain_count+0x20/0x20 [ 68.769851][ T8447] ? _copy_from_iter_nocache+0x1440/0x1440 [ 68.775648][ T8447] ? tcp_mstamp_refresh+0x12/0xa0 [ 68.780657][ T8447] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 68.787064][ T8447] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 68.792879][ T8447] ? __virt_addr_valid+0x5d/0x2d0 [ 68.797898][ T8447] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 68.804134][ T8447] ? __phys_addr_symbol+0x2c/0x70 [ 68.809150][ T8447] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 68.814863][ T8447] ? __check_object_size+0x18a/0x3f0 [ 68.820144][ T8447] simple_copy_to_iter+0x4c/0x70 [ 68.825075][ T8447] __skb_datagram_iter+0x4a7/0x770 [ 68.830272][ T8447] ? zerocopy_sg_from_iter+0x110/0x110 [ 68.835729][ T8447] skb_copy_datagram_iter+0x40/0x50 [ 68.840921][ T8447] tcp_recvmsg_locked+0x1048/0x22f0 [ 68.846137][ T8447] ? tcp_splice_read+0x8b0/0x8b0 [ 68.851074][ T8447] ? mark_held_locks+0x9f/0xe0 [ 68.855835][ T8447] ? __local_bh_enable_ip+0xa0/0x120 [ 68.861115][ T8447] tcp_recvmsg+0x134/0x550 [ 68.865540][ T8447] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 68.870915][ T8447] ? aa_sk_perm+0x311/0xab0 [ 68.875415][ T8447] inet_recvmsg+0x11b/0x5e0 [ 68.879915][ T8447] ? inet_sendpage+0x140/0x140 [ 68.884675][ T8447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.890912][ T8447] ? security_socket_recvmsg+0x8f/0xc0 [ 68.896366][ T8447] sock_read_iter+0x33c/0x470 [ 68.901048][ T8447] ? ____sys_recvmsg+0x600/0x600 [ 68.905987][ T8447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.912223][ T8447] ? fsnotify+0xa58/0x1060 [ 68.916634][ T8447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.922873][ T8447] new_sync_read+0x5b7/0x6e0 [ 68.927471][ T8447] ? ksys_lseek+0x1b0/0x1b0 [ 68.932004][ T8447] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 68.938008][ T8447] vfs_read+0x35c/0x570 [ 68.942171][ T8447] ksys_read+0x1ee/0x250 [ 68.946422][ T8447] ? vfs_write+0xa40/0xa40 [ 68.950832][ T8447] ? syscall_enter_from_user_mode+0x27/0x70 [ 68.956721][ T8447] do_syscall_64+0x3a/0xb0 [ 68.961143][ T8447] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 68.967051][ T8447] RIP: 0033:0x4af19b [ 68.970948][ T8447] 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 [ 68.990724][ T8447] RSP: 002b:000000c000695868 EFLAGS: 00000216 ORIG_RAX: 0000000000000000 [ 68.999132][ T8447] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 69.007105][ T8447] RDX: 0000000000001000 RSI: 000000c000206000 RDI: 0000000000000006 [ 69.015165][ T8447] RBP: 000000c0006958b8 R08: 0000000000000001 R09: 0000000000000002 [ 69.023125][ T8447] R10: 00000000000006bc R11: 0000000000000216 R12: 00000000000006b8 [ 69.031086][ T8447] R13: 0000000000000100 R14: 0000000000000004 R15: 0000000000000004 [ 69.039060][ T8447] ================================================================== [ 69.047100][ T8447] Disabling lock debugging due to kernel taint [ 69.055004][ T8447] Kernel panic - not syncing: panic_on_warn set ... [ 69.061633][ T8447] CPU: 1 PID: 8447 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 69.072563][ T8447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.082600][ T8447] Call Trace: [ 69.085864][ T8447] dump_stack+0x141/0x1d7 [ 69.090187][ T8447] panic+0x306/0x73d [ 69.094072][ T8447] ? __warn_printk+0xf3/0xf3 [ 69.098654][ T8447] ? preempt_schedule_common+0x59/0xc0 [ 69.104112][ T8447] ? copyout.part.0+0xd7/0x110 [ 69.108865][ T8447] ? preempt_schedule_thunk+0x16/0x18 [ 69.114233][ T8447] ? trace_hardirqs_on+0x38/0x1c0 [ 69.119267][ T8447] ? trace_hardirqs_on+0x51/0x1c0 [ 69.124299][ T8447] ? copyout.part.0+0xd7/0x110 [ 69.129060][ T8447] ? copyout.part.0+0xd7/0x110 [ 69.133828][ T8447] end_report.cold+0x5a/0x5a [ 69.138424][ T8447] kasan_report.cold+0x6a/0xd8 [ 69.143201][ T8447] ? copyout.part.0+0xd7/0x110 [ 69.147967][ T8447] kasan_check_range+0x13d/0x180 [ 69.152903][ T8447] copyout.part.0+0xd7/0x110 [ 69.157490][ T8447] _copy_to_iter+0x2b4/0x1850 [ 69.162162][ T8447] ? lock_chain_count+0x20/0x20 [ 69.167037][ T8447] ? _copy_from_iter_nocache+0x1440/0x1440 [ 69.172834][ T8447] ? tcp_mstamp_refresh+0x12/0xa0 [ 69.177851][ T8447] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 69.184087][ T8447] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 69.189797][ T8447] ? __virt_addr_valid+0x5d/0x2d0 [ 69.194808][ T8447] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 69.201041][ T8447] ? __phys_addr_symbol+0x2c/0x70 [ 69.206209][ T8447] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 69.211919][ T8447] ? __check_object_size+0x18a/0x3f0 [ 69.217201][ T8447] simple_copy_to_iter+0x4c/0x70 [ 69.222125][ T8447] __skb_datagram_iter+0x4a7/0x770 [ 69.227224][ T8447] ? zerocopy_sg_from_iter+0x110/0x110 [ 69.232684][ T8447] skb_copy_datagram_iter+0x40/0x50 [ 69.237872][ T8447] tcp_recvmsg_locked+0x1048/0x22f0 [ 69.243150][ T8447] ? tcp_splice_read+0x8b0/0x8b0 [ 69.248869][ T8447] ? mark_held_locks+0x9f/0xe0 [ 69.253624][ T8447] ? __local_bh_enable_ip+0xa0/0x120 [ 69.258898][ T8447] tcp_recvmsg+0x134/0x550 [ 69.263305][ T8447] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 69.268667][ T8447] ? aa_sk_perm+0x311/0xab0 [ 69.273156][ T8447] inet_recvmsg+0x11b/0x5e0 [ 69.277647][ T8447] ? inet_sendpage+0x140/0x140 [ 69.282410][ T8447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.288643][ T8447] ? security_socket_recvmsg+0x8f/0xc0 [ 69.294092][ T8447] sock_read_iter+0x33c/0x470 [ 69.298761][ T8447] ? ____sys_recvmsg+0x600/0x600 [ 69.303691][ T8447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.309923][ T8447] ? fsnotify+0xa58/0x1060 [ 69.314332][ T8447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 69.320578][ T8447] new_sync_read+0x5b7/0x6e0 [ 69.325154][ T8447] ? ksys_lseek+0x1b0/0x1b0 [ 69.329643][ T8447] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 69.335619][ T8447] vfs_read+0x35c/0x570 [ 69.339762][ T8447] ksys_read+0x1ee/0x250 [ 69.343991][ T8447] ? vfs_write+0xa40/0xa40 [ 69.348396][ T8447] ? syscall_enter_from_user_mode+0x27/0x70 [ 69.354298][ T8447] do_syscall_64+0x3a/0xb0 [ 69.358703][ T8447] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 69.364598][ T8447] RIP: 0033:0x4af19b [ 69.368493][ T8447] 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 [ 69.388085][ T8447] RSP: 002b:000000c000695868 EFLAGS: 00000216 ORIG_RAX: 0000000000000000 [ 69.396482][ T8447] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 69.404440][ T8447] RDX: 0000000000001000 RSI: 000000c000206000 RDI: 0000000000000006 [ 69.412395][ T8447] RBP: 000000c0006958b8 R08: 0000000000000001 R09: 0000000000000002 [ 69.420353][ T8447] R10: 00000000000006bc R11: 0000000000000216 R12: 00000000000006b8 [ 69.428568][ T8447] R13: 0000000000000100 R14: 0000000000000004 R15: 0000000000000004 [ 69.437032][ T8447] Kernel Offset: disabled [ 69.441539][ T8447] Rebooting in 86400 seconds..