Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.1' (ECDSA) to the list of known hosts. 2021/05/03 09:31:17 fuzzer started 2021/05/03 09:31:18 dialing manager at 10.128.0.169:44661 2021/05/03 09:31:18 syscalls: 3571 2021/05/03 09:31:18 code coverage: enabled 2021/05/03 09:31:18 comparison tracing: enabled 2021/05/03 09:31:18 extra coverage: enabled 2021/05/03 09:31:18 setuid sandbox: enabled 2021/05/03 09:31:18 namespace sandbox: enabled 2021/05/03 09:31:18 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/03 09:31:18 fault injection: enabled 2021/05/03 09:31:18 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/03 09:31:18 net packet injection: enabled 2021/05/03 09:31:18 net device setup: enabled 2021/05/03 09:31:18 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/03 09:31:18 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/03 09:31:18 USB emulation: enabled 2021/05/03 09:31:18 hci packet injection: enabled 2021/05/03 09:31:18 wifi device emulation: enabled 2021/05/03 09:31:18 802.15.4 emulation: enabled 2021/05/03 09:31:18 fetching corpus: 0, signal 0/2000 (executing program) 2021/05/03 09:31:18 fetching corpus: 50, signal 48136/51902 (executing program) 2021/05/03 09:31:18 fetching corpus: 100, signal 83055/88443 (executing program) 2021/05/03 09:31:19 fetching corpus: 150, signal 112715/119589 (executing program) 2021/05/03 09:31:19 fetching corpus: 200, signal 131128/139457 (executing program) 2021/05/03 09:31:19 fetching corpus: 250, signal 150379/160055 (executing program) 2021/05/03 09:31:19 fetching corpus: 300, signal 165306/176296 (executing program) 2021/05/03 09:31:19 fetching corpus: 350, signal 174717/187130 (executing program) 2021/05/03 09:31:20 fetching corpus: 400, signal 185843/199574 (executing program) 2021/05/03 09:31:20 fetching corpus: 450, signal 197065/212032 (executing program) 2021/05/03 09:31:20 fetching corpus: 500, signal 211196/227236 (executing program) 2021/05/03 09:31:20 fetching corpus: 550, signal 219141/236372 (executing program) 2021/05/03 09:31:20 fetching corpus: 600, signal 228408/246761 (executing program) 2021/05/03 09:31:20 fetching corpus: 650, signal 238283/257682 (executing program) 2021/05/03 09:31:20 fetching corpus: 700, signal 245212/265772 (executing program) syzkaller login: [ 73.874424][ T8447] ================================================================== [ 73.882687][ T8447] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 73.890175][ T8447] Read of size 1408 at addr 108548c030850010 by task syz-fuzzer/8447 [ 73.898223][ T8447] [ 73.900547][ T8447] CPU: 1 PID: 8447 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 73.910074][ T8447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.920113][ T8447] Call Trace: [ 73.923399][ T8447] dump_stack+0x141/0x1d7 [ 73.927742][ T8447] ? copyout.part.0+0xd7/0x110 [ 73.932503][ T8447] kasan_report.cold+0x5f/0xd8 [ 73.937266][ T8447] ? copyout.part.0+0xd7/0x110 [ 73.942053][ T8447] kasan_check_range+0x13d/0x180 [ 73.946990][ T8447] copyout.part.0+0xd7/0x110 [ 73.951597][ T8447] _copy_to_iter+0x2b4/0x1850 [ 73.956357][ T8447] ? lock_chain_count+0x20/0x20 [ 73.961586][ T8447] ? ip_local_deliver_finish+0x240/0x370 [ 73.967238][ T8447] ? _copy_from_iter_nocache+0x1440/0x1440 [ 73.973047][ T8447] ? ip_local_deliver+0x195/0x200 [ 73.978070][ T8447] ? ip_sublist_rcv_finish+0x9a/0x2c0 [ 73.983445][ T8447] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 73.989689][ T8447] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 73.995753][ T8447] ? __virt_addr_valid+0x5d/0x2d0 [ 74.000795][ T8447] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 74.007049][ T8447] ? __phys_addr_symbol+0x2c/0x70 [ 74.012086][ T8447] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.017828][ T8447] ? __check_object_size+0x18a/0x3f0 [ 74.023134][ T8447] simple_copy_to_iter+0x4c/0x70 [ 74.028072][ T8447] __skb_datagram_iter+0x4a7/0x770 [ 74.033180][ T8447] ? zerocopy_sg_from_iter+0x110/0x110 [ 74.038634][ T8447] skb_copy_datagram_iter+0x40/0x50 [ 74.043829][ T8447] tcp_recvmsg_locked+0x1048/0x22f0 [ 74.049038][ T8447] ? tcp_splice_read+0x8b0/0x8b0 [ 74.053969][ T8447] ? mark_held_locks+0x9f/0xe0 [ 74.058751][ T8447] ? __local_bh_enable_ip+0xa0/0x120 [ 74.064035][ T8447] tcp_recvmsg+0x134/0x550 [ 74.068450][ T8447] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 74.073837][ T8447] ? aa_sk_perm+0x311/0xab0 [ 74.078338][ T8447] inet_recvmsg+0x11b/0x5e0 [ 74.082842][ T8447] ? inet_sendpage+0x140/0x140 [ 74.087603][ T8447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.093843][ T8447] ? security_socket_recvmsg+0x8f/0xc0 [ 74.099300][ T8447] sock_read_iter+0x33c/0x470 [ 74.103999][ T8447] ? ____sys_recvmsg+0x600/0x600 [ 74.108938][ T8447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.115177][ T8447] ? fsnotify+0xa58/0x1060 [ 74.119589][ T8447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.125831][ T8447] new_sync_read+0x5b7/0x6e0 [ 74.130414][ T8447] ? ksys_lseek+0x1b0/0x1b0 [ 74.134927][ T8447] vfs_read+0x35c/0x570 [ 74.139084][ T8447] ksys_read+0x1ee/0x250 [ 74.143322][ T8447] ? vfs_write+0xa40/0xa40 [ 74.147731][ T8447] ? syscall_enter_from_user_mode+0x27/0x70 [ 74.153623][ T8447] do_syscall_64+0x3a/0xb0 [ 74.158036][ T8447] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 74.163939][ T8447] RIP: 0033:0x4af19b [ 74.167841][ 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 [ 74.187478][ T8447] RSP: 002b:000000c000457828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 74.195889][ T8447] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 74.203851][ T8447] RDX: 0000000000001000 RSI: 000000c0000fa000 RDI: 0000000000000006 [ 74.211816][ T8447] RBP: 000000c000457878 R08: 0000000000000001 R09: 0000000000000002 [ 74.219793][ T8447] R10: 00000000000012d2 R11: 0000000000000212 R12: 00000000000012ce [ 74.227753][ T8447] R13: 0000000000000400 R14: 0000000000000004 R15: 0000000000000004 [ 74.235728][ T8447] ================================================================== [ 74.243778][ T8447] Disabling lock debugging due to kernel taint [ 74.251203][ T8447] Kernel panic - not syncing: panic_on_warn set ... [ 74.257811][ T8447] CPU: 1 PID: 8447 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 74.268752][ T8447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.278801][ T8447] Call Trace: [ 74.282070][ T8447] dump_stack+0x141/0x1d7 [ 74.286396][ T8447] panic+0x306/0x73d [ 74.290289][ T8447] ? __warn_printk+0xf3/0xf3 [ 74.294872][ T8447] ? preempt_schedule_common+0x59/0xc0 [ 74.300323][ T8447] ? copyout.part.0+0xd7/0x110 [ 74.305078][ T8447] ? preempt_schedule_thunk+0x16/0x18 [ 74.310442][ T8447] ? trace_hardirqs_on+0x38/0x1c0 [ 74.315474][ T8447] ? trace_hardirqs_on+0x51/0x1c0 [ 74.320505][ T8447] ? copyout.part.0+0xd7/0x110 [ 74.325260][ T8447] ? copyout.part.0+0xd7/0x110 [ 74.330013][ T8447] end_report.cold+0x5a/0x5a [ 74.334594][ T8447] kasan_report.cold+0x6a/0xd8 [ 74.339351][ T8447] ? copyout.part.0+0xd7/0x110 [ 74.344104][ T8447] kasan_check_range+0x13d/0x180 [ 74.349033][ T8447] copyout.part.0+0xd7/0x110 [ 74.353614][ T8447] _copy_to_iter+0x2b4/0x1850 [ 74.358284][ T8447] ? lock_chain_count+0x20/0x20 [ 74.363147][ T8447] ? ip_local_deliver_finish+0x240/0x370 [ 74.368776][ T8447] ? _copy_from_iter_nocache+0x1440/0x1440 [ 74.374571][ T8447] ? ip_local_deliver+0x195/0x200 [ 74.379597][ T8447] ? ip_sublist_rcv_finish+0x9a/0x2c0 [ 74.384962][ T8447] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 74.391197][ T8447] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.396911][ T8447] ? __virt_addr_valid+0x5d/0x2d0 [ 74.401926][ T8447] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 74.408160][ T8447] ? __phys_addr_symbol+0x2c/0x70 [ 74.413175][ T8447] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.418885][ T8447] ? __check_object_size+0x18a/0x3f0 [ 74.424164][ T8447] simple_copy_to_iter+0x4c/0x70 [ 74.429092][ T8447] __skb_datagram_iter+0x4a7/0x770 [ 74.434194][ T8447] ? zerocopy_sg_from_iter+0x110/0x110 [ 74.439645][ T8447] skb_copy_datagram_iter+0x40/0x50 [ 74.444832][ T8447] tcp_recvmsg_locked+0x1048/0x22f0 [ 74.450042][ T8447] ? tcp_splice_read+0x8b0/0x8b0 [ 74.454971][ T8447] ? mark_held_locks+0x9f/0xe0 [ 74.459728][ T8447] ? __local_bh_enable_ip+0xa0/0x120 [ 74.465005][ T8447] tcp_recvmsg+0x134/0x550 [ 74.469411][ T8447] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 74.474777][ T8447] ? aa_sk_perm+0x311/0xab0 [ 74.479444][ T8447] inet_recvmsg+0x11b/0x5e0 [ 74.483939][ T8447] ? inet_sendpage+0x140/0x140 [ 74.488698][ T8447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.494932][ T8447] ? security_socket_recvmsg+0x8f/0xc0 [ 74.500384][ T8447] sock_read_iter+0x33c/0x470 [ 74.505056][ T8447] ? ____sys_recvmsg+0x600/0x600 [ 74.509986][ T8447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.516219][ T8447] ? fsnotify+0xa58/0x1060 [ 74.520626][ T8447] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.526863][ T8447] new_sync_read+0x5b7/0x6e0 [ 74.531444][ T8447] ? ksys_lseek+0x1b0/0x1b0 [ 74.535941][ T8447] vfs_read+0x35c/0x570 [ 74.540085][ T8447] ksys_read+0x1ee/0x250 [ 74.544341][ T8447] ? vfs_write+0xa40/0xa40 [ 74.548749][ T8447] ? syscall_enter_from_user_mode+0x27/0x70 [ 74.554635][ T8447] do_syscall_64+0x3a/0xb0 [ 74.559041][ T8447] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 74.564941][ T8447] RIP: 0033:0x4af19b [ 74.568822][ 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 [ 74.588434][ T8447] RSP: 002b:000000c000457828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 74.596921][ T8447] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 74.604879][ T8447] RDX: 0000000000001000 RSI: 000000c0000fa000 RDI: 0000000000000006 [ 74.612836][ T8447] RBP: 000000c000457878 R08: 0000000000000001 R09: 0000000000000002 [ 74.620804][ T8447] R10: 00000000000012d2 R11: 0000000000000212 R12: 00000000000012ce [ 74.628768][ T8447] R13: 0000000000000400 R14: 0000000000000004 R15: 0000000000000004 [ 74.637434][ T8447] Kernel Offset: disabled [ 74.641767][ T8447] Rebooting in 86400 seconds..