Warning: Permanently added '10.128.1.43' (ECDSA) to the list of known hosts. 2021/05/03 13:24:43 fuzzer started 2021/05/03 13:24:44 dialing manager at 10.128.0.169:44661 2021/05/03 13:24:44 syscalls: 3571 2021/05/03 13:24:44 code coverage: enabled 2021/05/03 13:24:44 comparison tracing: enabled 2021/05/03 13:24:44 extra coverage: enabled 2021/05/03 13:24:44 setuid sandbox: enabled 2021/05/03 13:24:44 namespace sandbox: enabled 2021/05/03 13:24:44 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/03 13:24:44 fault injection: enabled 2021/05/03 13:24:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/03 13:24:44 net packet injection: enabled 2021/05/03 13:24:44 net device setup: enabled 2021/05/03 13:24:44 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/03 13:24:44 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/03 13:24:44 USB emulation: enabled 2021/05/03 13:24:44 hci packet injection: enabled 2021/05/03 13:24:44 wifi device emulation: enabled 2021/05/03 13:24:44 802.15.4 emulation: enabled 2021/05/03 13:24:44 fetching corpus: 0, signal 0/2000 (executing program) syzkaller login: [ 72.270412][ T8425] ================================================================== [ 72.278740][ T8425] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 72.286250][ T8425] Read of size 480 at addr 108548c02b738010 by task syz-fuzzer/8425 [ 72.294237][ T8425] [ 72.296564][ T8425] CPU: 0 PID: 8425 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 72.306116][ T8425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.316180][ T8425] Call Trace: [ 72.319467][ T8425] dump_stack+0x141/0x1d7 [ 72.323835][ T8425] ? copyout.part.0+0xd7/0x110 [ 72.328619][ T8425] kasan_report.cold+0x5f/0xd8 [ 72.333414][ T8425] ? copyout.part.0+0xd7/0x110 [ 72.338302][ T8425] kasan_check_range+0x13d/0x180 [ 72.343237][ T8425] copyout.part.0+0xd7/0x110 [ 72.347831][ T8425] _copy_to_iter+0x2b4/0x1850 [ 72.352508][ T8425] ? lock_chain_count+0x20/0x20 [ 72.357357][ T8425] ? _copy_from_iter_nocache+0x1440/0x1440 [ 72.363172][ T8425] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 72.369410][ T8425] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 72.375119][ T8425] ? __virt_addr_valid+0x5d/0x2d0 [ 72.380131][ T8425] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 72.386356][ T8425] ? __phys_addr_symbol+0x2c/0x70 [ 72.391369][ T8425] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 72.397089][ T8425] ? __check_object_size+0x18a/0x3f0 [ 72.402363][ T8425] simple_copy_to_iter+0x4c/0x70 [ 72.407285][ T8425] __skb_datagram_iter+0x4a7/0x770 [ 72.412390][ T8425] ? zerocopy_sg_from_iter+0x110/0x110 [ 72.417834][ T8425] skb_copy_datagram_iter+0x40/0x50 [ 72.423017][ T8425] tcp_recvmsg_locked+0x1048/0x22f0 [ 72.428210][ T8425] ? tcp_splice_read+0x8b0/0x8b0 [ 72.433132][ T8425] ? mark_held_locks+0x9f/0xe0 [ 72.437891][ T8425] ? __local_bh_enable_ip+0xa0/0x120 [ 72.443165][ T8425] tcp_recvmsg+0x134/0x550 [ 72.447571][ T8425] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 72.452935][ T8425] ? aa_sk_perm+0x311/0xab0 [ 72.457426][ T8425] inet_recvmsg+0x11b/0x5e0 [ 72.461915][ T8425] ? inet_sendpage+0x140/0x140 [ 72.466667][ T8425] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.472900][ T8425] ? security_socket_recvmsg+0x8f/0xc0 [ 72.478347][ T8425] sock_read_iter+0x33c/0x470 [ 72.483033][ T8425] ? ____sys_recvmsg+0x600/0x600 [ 72.487961][ T8425] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.494189][ T8425] ? fsnotify+0xa58/0x1060 [ 72.498589][ T8425] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.504822][ T8425] new_sync_read+0x5b7/0x6e0 [ 72.509398][ T8425] ? ksys_lseek+0x1b0/0x1b0 [ 72.513896][ T8425] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 72.519876][ T8425] vfs_read+0x35c/0x570 [ 72.524018][ T8425] ksys_read+0x1ee/0x250 [ 72.528254][ T8425] ? vfs_write+0xa40/0xa40 [ 72.532656][ T8425] ? syscall_enter_from_user_mode+0x27/0x70 [ 72.538537][ T8425] do_syscall_64+0x3a/0xb0 [ 72.542938][ T8425] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 72.548922][ T8425] RIP: 0033:0x4af19b [ 72.552802][ T8425] 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 [ 72.572486][ T8425] RSP: 002b:000000c0001a1828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 72.580886][ T8425] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af19b [ 72.588859][ T8425] RDX: 0000000000001000 RSI: 000000c0001c0000 RDI: 0000000000000006 [ 72.596833][ T8425] RBP: 000000c0001a1878 R08: 0000000000000001 R09: 0000000000000002 [ 72.604788][ T8425] R10: 0000000000004688 R11: 0000000000000212 R12: ffffffffffffffff [ 72.612828][ T8425] R13: 0000000000002000 R14: 0000000000000002 R15: 0000000000000002 [ 72.620795][ T8425] ================================================================== [ 72.628846][ T8425] Disabling lock debugging due to kernel taint [ 72.636772][ T8425] Kernel panic - not syncing: panic_on_warn set ... [ 72.643378][ T8425] CPU: 1 PID: 8425 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 72.654312][ T8425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.664356][ T8425] Call Trace: [ 72.667634][ T8425] dump_stack+0x141/0x1d7 [ 72.671962][ T8425] panic+0x306/0x73d [ 72.675848][ T8425] ? __warn_printk+0xf3/0xf3 [ 72.680427][ T8425] ? preempt_schedule_common+0x59/0xc0 [ 72.685879][ T8425] ? copyout.part.0+0xd7/0x110 [ 72.690640][ T8425] ? preempt_schedule_thunk+0x16/0x18 [ 72.696019][ T8425] ? trace_hardirqs_on+0x38/0x1c0 [ 72.701034][ T8425] ? trace_hardirqs_on+0x51/0x1c0 [ 72.706052][ T8425] ? copyout.part.0+0xd7/0x110 [ 72.710813][ T8425] ? copyout.part.0+0xd7/0x110 [ 72.715582][ T8425] end_report.cold+0x5a/0x5a [ 72.720171][ T8425] kasan_report.cold+0x6a/0xd8 [ 72.724926][ T8425] ? copyout.part.0+0xd7/0x110 [ 72.729679][ T8425] kasan_check_range+0x13d/0x180 [ 72.734608][ T8425] copyout.part.0+0xd7/0x110 [ 72.739191][ T8425] _copy_to_iter+0x2b4/0x1850 [ 72.744825][ T8425] ? lock_chain_count+0x20/0x20 [ 72.749681][ T8425] ? _copy_from_iter_nocache+0x1440/0x1440 [ 72.755483][ T8425] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 72.761728][ T8425] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 72.767556][ T8425] ? __virt_addr_valid+0x5d/0x2d0 [ 72.772585][ T8425] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 72.778826][ T8425] ? __phys_addr_symbol+0x2c/0x70 [ 72.783846][ T8425] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 72.789559][ T8425] ? __check_object_size+0x18a/0x3f0 [ 72.794838][ T8425] simple_copy_to_iter+0x4c/0x70 [ 72.799781][ T8425] __skb_datagram_iter+0x4a7/0x770 [ 72.804884][ T8425] ? zerocopy_sg_from_iter+0x110/0x110 [ 72.810341][ T8425] skb_copy_datagram_iter+0x40/0x50 [ 72.817090][ T8425] tcp_recvmsg_locked+0x1048/0x22f0 [ 72.822286][ T8425] ? tcp_splice_read+0x8b0/0x8b0 [ 72.827216][ T8425] ? mark_held_locks+0x9f/0xe0 [ 72.831974][ T8425] ? __local_bh_enable_ip+0xa0/0x120 [ 72.837251][ T8425] tcp_recvmsg+0x134/0x550 [ 72.841658][ T8425] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 72.847023][ T8425] ? aa_sk_perm+0x311/0xab0 [ 72.851773][ T8425] inet_recvmsg+0x11b/0x5e0 [ 72.856284][ T8425] ? inet_sendpage+0x140/0x140 [ 72.861041][ T8425] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.867274][ T8425] ? security_socket_recvmsg+0x8f/0xc0 [ 72.872725][ T8425] sock_read_iter+0x33c/0x470 [ 72.877393][ T8425] ? ____sys_recvmsg+0x600/0x600 [ 72.882321][ T8425] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.888575][ T8425] ? fsnotify+0xa58/0x1060 [ 72.892982][ T8425] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.899227][ T8425] new_sync_read+0x5b7/0x6e0 [ 72.903807][ T8425] ? ksys_lseek+0x1b0/0x1b0 [ 72.908308][ T8425] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 72.914303][ T8425] vfs_read+0x35c/0x570 [ 72.918457][ T8425] ksys_read+0x1ee/0x250 [ 72.922693][ T8425] ? vfs_write+0xa40/0xa40 [ 72.927100][ T8425] ? syscall_enter_from_user_mode+0x27/0x70 [ 72.933095][ T8425] do_syscall_64+0x3a/0xb0 [ 72.937522][ T8425] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 72.943408][ T8425] RIP: 0033:0x4af19b [ 72.947401][ T8425] 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 [ 72.967014][ T8425] RSP: 002b:000000c0001a1828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 72.975428][ T8425] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af19b [ 72.983388][ T8425] RDX: 0000000000001000 RSI: 000000c0001c0000 RDI: 0000000000000006 [ 72.991349][ T8425] RBP: 000000c0001a1878 R08: 0000000000000001 R09: 0000000000000002 [ 72.999309][ T8425] R10: 0000000000004688 R11: 0000000000000212 R12: ffffffffffffffff [ 73.007267][ T8425] R13: 0000000000002000 R14: 0000000000000002 R15: 0000000000000002 [ 73.018612][ T8425] Kernel Offset: disabled [ 73.022929][ T8425] Rebooting in 86400 seconds..