Warning: Permanently added '10.128.0.122' (ECDSA) to the list of known hosts. 2021/05/01 11:40:16 fuzzer started 2021/05/01 11:40:16 dialing manager at 10.128.0.169:44661 2021/05/01 11:40:16 syscalls: 3571 2021/05/01 11:40:16 code coverage: enabled 2021/05/01 11:40:16 comparison tracing: enabled 2021/05/01 11:40:16 extra coverage: enabled 2021/05/01 11:40:16 setuid sandbox: enabled 2021/05/01 11:40:16 namespace sandbox: enabled 2021/05/01 11:40:16 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/01 11:40:16 fault injection: enabled 2021/05/01 11:40:16 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/01 11:40:16 net packet injection: enabled 2021/05/01 11:40:16 net device setup: enabled 2021/05/01 11:40:16 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/01 11:40:16 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/01 11:40:16 USB emulation: enabled 2021/05/01 11:40:16 hci packet injection: enabled 2021/05/01 11:40:16 wifi device emulation: enabled 2021/05/01 11:40:16 802.15.4 emulation: enabled 2021/05/01 11:40:16 fetching corpus: 0, signal 0/2000 (executing program) 2021/05/01 11:40:17 fetching corpus: 50, signal 60054/63745 (executing program) 2021/05/01 11:40:17 fetching corpus: 100, signal 96700/101982 (executing program) 2021/05/01 11:40:17 fetching corpus: 150, signal 118979/125774 (executing program) 2021/05/01 11:40:17 fetching corpus: 200, signal 134865/143144 (executing program) 2021/05/01 11:40:17 fetching corpus: 250, signal 152378/162051 (executing program) 2021/05/01 11:40:18 fetching corpus: 300, signal 165698/176735 (executing program) 2021/05/01 11:40:18 fetching corpus: 350, signal 176580/188957 (executing program) syzkaller login: [ 72.567853][ T8420] ================================================================== [ 72.577725][ T8420] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 72.585206][ T8420] Read of size 352 at addr b0c06f809e7b326e by task syz-fuzzer/8420 [ 72.593178][ T8420] [ 72.595501][ T8420] CPU: 1 PID: 8420 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 72.605069][ T8420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.615119][ T8420] Call Trace: [ 72.618398][ T8420] dump_stack+0x141/0x1d7 [ 72.622742][ T8420] ? copyout.part.0+0xd7/0x110 [ 72.627511][ T8420] kasan_report.cold+0x5f/0xd8 [ 72.632292][ T8420] ? copyout.part.0+0xd7/0x110 [ 72.637054][ T8420] kasan_check_range+0x13d/0x180 [ 72.641993][ T8420] copyout.part.0+0xd7/0x110 [ 72.646624][ T8420] _copy_to_iter+0x2b4/0x1850 [ 72.651299][ T8420] ? lock_chain_count+0x20/0x20 [ 72.656147][ T8420] ? _copy_from_iter_nocache+0x1440/0x1440 [ 72.661952][ T8420] ? tcp_mstamp_refresh+0x12/0xa0 [ 72.666985][ T8420] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 72.677910][ T8420] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 72.683634][ T8420] ? __virt_addr_valid+0x5d/0x2d0 [ 72.688652][ T8420] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 72.694891][ T8420] ? __phys_addr_symbol+0x2c/0x70 [ 72.699919][ T8420] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 72.705646][ T8420] ? __check_object_size+0x18a/0x3f0 [ 72.710937][ T8420] simple_copy_to_iter+0x4c/0x70 [ 72.715883][ T8420] __skb_datagram_iter+0x4a7/0x770 [ 72.721001][ T8420] ? zerocopy_sg_from_iter+0x110/0x110 [ 72.726461][ T8420] skb_copy_datagram_iter+0x40/0x50 [ 72.731655][ T8420] tcp_recvmsg_locked+0x1048/0x22f0 [ 72.736866][ T8420] ? tcp_splice_read+0x8b0/0x8b0 [ 72.741801][ T8420] ? mark_held_locks+0x9f/0xe0 [ 72.746567][ T8420] ? __local_bh_enable_ip+0xa0/0x120 [ 72.751875][ T8420] tcp_recvmsg+0x134/0x550 [ 72.756290][ T8420] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 72.761668][ T8420] ? aa_sk_perm+0x311/0xab0 [ 72.766168][ T8420] inet_recvmsg+0x11b/0x5e0 [ 72.770670][ T8420] ? inet_sendpage+0x140/0x140 [ 72.775431][ T8420] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.781670][ T8420] ? security_socket_recvmsg+0x8f/0xc0 [ 72.787135][ T8420] sock_read_iter+0x33c/0x470 [ 72.791820][ T8420] ? ____sys_recvmsg+0x600/0x600 [ 72.796767][ T8420] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.803006][ T8420] ? fsnotify+0xa58/0x1060 [ 72.807418][ T8420] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.813667][ T8420] new_sync_read+0x5b7/0x6e0 [ 72.818252][ T8420] ? ksys_lseek+0x1b0/0x1b0 [ 72.822750][ T8420] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 72.828748][ T8420] vfs_read+0x35c/0x570 [ 72.832908][ T8420] ksys_read+0x1ee/0x250 [ 72.837170][ T8420] ? vfs_write+0xa40/0xa40 [ 72.841580][ T8420] ? syscall_enter_from_user_mode+0x27/0x70 [ 72.847475][ T8420] do_syscall_64+0x3a/0xb0 [ 72.851894][ T8420] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 72.857783][ T8420] RIP: 0033:0x4af19b [ 72.861668][ T8420] 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 [ 72.881266][ T8420] RSP: 002b:000000c00044d828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 72.889672][ T8420] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 72.897633][ T8420] RDX: 0000000000001000 RSI: 000000c0003b7000 RDI: 0000000000000006 [ 72.905596][ T8420] RBP: 000000c00044d878 R08: 0000000000000001 R09: 0000000000000002 [ 72.913557][ T8420] R10: 0000000000002d5d R11: 0000000000000212 R12: 0000000000002d59 [ 72.921519][ T8420] R13: 0000000000000400 R14: 0000000000000010 R15: 0000000000000002 [ 72.929495][ T8420] ================================================================== [ 72.937538][ T8420] Disabling lock debugging due to kernel taint [ 72.945092][ T8420] Kernel panic - not syncing: panic_on_warn set ... [ 72.951684][ T8420] CPU: 0 PID: 8420 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 72.962624][ T8420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.972698][ T8420] Call Trace: [ 72.975964][ T8420] dump_stack+0x141/0x1d7 [ 72.980304][ T8420] panic+0x306/0x73d [ 72.984187][ T8420] ? __warn_printk+0xf3/0xf3 [ 72.988777][ T8420] ? preempt_schedule_common+0x59/0xc0 [ 72.994285][ T8420] ? copyout.part.0+0xd7/0x110 [ 72.999050][ T8420] ? preempt_schedule_thunk+0x16/0x18 [ 73.004425][ T8420] ? trace_hardirqs_on+0x38/0x1c0 [ 73.009435][ T8420] ? trace_hardirqs_on+0x51/0x1c0 [ 73.014447][ T8420] ? copyout.part.0+0xd7/0x110 [ 73.019209][ T8420] ? copyout.part.0+0xd7/0x110 [ 73.023975][ T8420] end_report.cold+0x5a/0x5a [ 73.028579][ T8420] kasan_report.cold+0x6a/0xd8 [ 73.033336][ T8420] ? copyout.part.0+0xd7/0x110 [ 73.038095][ T8420] kasan_check_range+0x13d/0x180 [ 73.043027][ T8420] copyout.part.0+0xd7/0x110 [ 73.047604][ T8420] _copy_to_iter+0x2b4/0x1850 [ 73.052274][ T8420] ? lock_chain_count+0x20/0x20 [ 73.057120][ T8420] ? _copy_from_iter_nocache+0x1440/0x1440 [ 73.063004][ T8420] ? tcp_mstamp_refresh+0x12/0xa0 [ 73.068025][ T8420] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 73.074259][ T8420] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 73.079983][ T8420] ? __virt_addr_valid+0x5d/0x2d0 [ 73.085011][ T8420] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 73.091250][ T8420] ? __phys_addr_symbol+0x2c/0x70 [ 73.096264][ T8420] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 73.101995][ T8420] ? __check_object_size+0x18a/0x3f0 [ 73.107279][ T8420] simple_copy_to_iter+0x4c/0x70 [ 73.112210][ T8420] __skb_datagram_iter+0x4a7/0x770 [ 73.117318][ T8420] ? zerocopy_sg_from_iter+0x110/0x110 [ 73.122772][ T8420] skb_copy_datagram_iter+0x40/0x50 [ 73.127964][ T8420] tcp_recvmsg_locked+0x1048/0x22f0 [ 73.133157][ T8420] ? tcp_splice_read+0x8b0/0x8b0 [ 73.138087][ T8420] ? mark_held_locks+0x9f/0xe0 [ 73.142846][ T8420] ? __local_bh_enable_ip+0xa0/0x120 [ 73.148149][ T8420] tcp_recvmsg+0x134/0x550 [ 73.152567][ T8420] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 73.157947][ T8420] ? aa_sk_perm+0x311/0xab0 [ 73.162448][ T8420] inet_recvmsg+0x11b/0x5e0 [ 73.166946][ T8420] ? inet_sendpage+0x140/0x140 [ 73.171708][ T8420] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.177946][ T8420] ? security_socket_recvmsg+0x8f/0xc0 [ 73.183395][ T8420] sock_read_iter+0x33c/0x470 [ 73.188090][ T8420] ? ____sys_recvmsg+0x600/0x600 [ 73.193024][ T8420] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.199261][ T8420] ? fsnotify+0xa58/0x1060 [ 73.203669][ T8420] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.209908][ T8420] new_sync_read+0x5b7/0x6e0 [ 73.214494][ T8420] ? ksys_lseek+0x1b0/0x1b0 [ 73.218996][ T8420] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 73.224985][ T8420] vfs_read+0x35c/0x570 [ 73.229130][ T8420] ksys_read+0x1ee/0x250 [ 73.233375][ T8420] ? vfs_write+0xa40/0xa40 [ 73.237780][ T8420] ? syscall_enter_from_user_mode+0x27/0x70 [ 73.243685][ T8420] do_syscall_64+0x3a/0xb0 [ 73.248108][ T8420] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 73.254008][ T8420] RIP: 0033:0x4af19b [ 73.257895][ T8420] 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 [ 73.277499][ T8420] RSP: 002b:000000c00044d828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 73.285908][ T8420] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 73.293872][ T8420] RDX: 0000000000001000 RSI: 000000c0003b7000 RDI: 0000000000000006 [ 73.301829][ T8420] RBP: 000000c00044d878 R08: 0000000000000001 R09: 0000000000000002 [ 73.309805][ T8420] R10: 0000000000002d5d R11: 0000000000000212 R12: 0000000000002d59 [ 73.317768][ T8420] R13: 0000000000000400 R14: 0000000000000010 R15: 0000000000000002 [ 73.326338][ T8420] Kernel Offset: disabled [ 73.330675][ T8420] Rebooting in 86400 seconds..