Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.212' (ECDSA) to the list of known hosts. 2021/05/02 20:31:09 fuzzer started 2021/05/02 20:31:10 dialing manager at 10.128.0.169:44661 2021/05/02 20:31:10 syscalls: 3571 2021/05/02 20:31:10 code coverage: enabled 2021/05/02 20:31:10 comparison tracing: enabled 2021/05/02 20:31:10 extra coverage: enabled 2021/05/02 20:31:10 setuid sandbox: enabled 2021/05/02 20:31:10 namespace sandbox: enabled 2021/05/02 20:31:10 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/02 20:31:10 fault injection: enabled 2021/05/02 20:31:10 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/02 20:31:10 net packet injection: enabled 2021/05/02 20:31:10 net device setup: enabled 2021/05/02 20:31:10 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/02 20:31:10 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/02 20:31:10 USB emulation: enabled 2021/05/02 20:31:10 hci packet injection: enabled 2021/05/02 20:31:10 wifi device emulation: enabled 2021/05/02 20:31:10 802.15.4 emulation: enabled 2021/05/02 20:31:10 fetching corpus: 0, signal 0/2000 (executing program) 2021/05/02 20:31:10 fetching corpus: 50, signal 58747/62411 (executing program) syzkaller login: [ 74.082702][ T8468] ================================================================== [ 74.092100][ T8468] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 74.099710][ T8468] Read of size 1440 at addr 108548c02b5c0010 by task syz-fuzzer/8468 [ 74.107945][ T8468] [ 74.110285][ T8468] CPU: 0 PID: 8468 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 74.120213][ T8468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.131048][ T8468] Call Trace: [ 74.134581][ T8468] dump_stack+0x141/0x1d7 [ 74.139025][ T8468] ? copyout.part.0+0xd7/0x110 [ 74.143805][ T8468] kasan_report.cold+0x5f/0xd8 [ 74.148848][ T8468] ? copyout.part.0+0xd7/0x110 [ 74.153789][ T8468] kasan_check_range+0x13d/0x180 [ 74.158812][ T8468] copyout.part.0+0xd7/0x110 [ 74.163486][ T8468] _copy_to_iter+0x2b4/0x1850 [ 74.168184][ T8468] ? lock_chain_count+0x20/0x20 [ 74.173124][ T8468] ? ip_local_deliver_finish+0x240/0x370 [ 74.178776][ T8468] ? _copy_from_iter_nocache+0x1440/0x1440 [ 74.184581][ T8468] ? ip_local_deliver+0x195/0x200 [ 74.189711][ T8468] ? ip_sublist_rcv_finish+0x9a/0x2c0 [ 74.195272][ T8468] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 74.201731][ T8468] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.207554][ T8468] ? __virt_addr_valid+0x5d/0x2d0 [ 74.212676][ T8468] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 74.219030][ T8468] ? __phys_addr_symbol+0x2c/0x70 [ 74.224074][ T8468] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.229887][ T8468] ? __check_object_size+0x18a/0x3f0 [ 74.235182][ T8468] simple_copy_to_iter+0x4c/0x70 [ 74.240120][ T8468] __skb_datagram_iter+0x4a7/0x770 [ 74.245493][ T8468] ? zerocopy_sg_from_iter+0x110/0x110 [ 74.251002][ T8468] skb_copy_datagram_iter+0x40/0x50 [ 74.256223][ T8468] tcp_recvmsg_locked+0x1048/0x22f0 [ 74.261782][ T8468] ? tcp_splice_read+0x8b0/0x8b0 [ 74.266748][ T8468] ? mark_held_locks+0x9f/0xe0 [ 74.271528][ T8468] ? __local_bh_enable_ip+0xa0/0x120 [ 74.276934][ T8468] tcp_recvmsg+0x134/0x550 [ 74.281583][ T8468] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 74.286981][ T8468] ? aa_sk_perm+0x311/0xab0 [ 74.291579][ T8468] inet_recvmsg+0x11b/0x5e0 [ 74.296086][ T8468] ? inet_sendpage+0x140/0x140 [ 74.300853][ T8468] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.307094][ T8468] ? security_socket_recvmsg+0x8f/0xc0 [ 74.312819][ T8468] sock_read_iter+0x33c/0x470 [ 74.317500][ T8468] ? ____sys_recvmsg+0x600/0x600 [ 74.322493][ T8468] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.328825][ T8468] ? fsnotify+0xa58/0x1060 [ 74.333265][ T8468] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.339642][ T8468] new_sync_read+0x5b7/0x6e0 [ 74.344349][ T8468] ? ksys_lseek+0x1b0/0x1b0 [ 74.349077][ T8468] vfs_read+0x35c/0x570 [ 74.353239][ T8468] ksys_read+0x1ee/0x250 [ 74.357561][ T8468] ? vfs_write+0xa40/0xa40 [ 74.362680][ T8468] ? syscall_enter_from_user_mode+0x27/0x70 [ 74.368751][ T8468] do_syscall_64+0x3a/0xb0 [ 74.373173][ T8468] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 74.379177][ T8468] RIP: 0033:0x4af19b [ 74.383155][ T8468] 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 [ 74.403395][ T8468] RSP: 002b:000000c0000c5850 EFLAGS: 00000206 ORIG_RAX: 0000000000000000 [ 74.412084][ T8468] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af19b [ 74.420163][ T8468] RDX: 0000000000001000 RSI: 000000c0000e2000 RDI: 0000000000000006 [ 74.428219][ T8468] RBP: 000000c0000c58a0 R08: 0000000000000001 R09: 0000000000000002 [ 74.436385][ T8468] R10: 0000000000003aa2 R11: 0000000000000206 R12: 0000000000003a9e [ 74.444509][ T8468] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000002 [ 74.452875][ T8468] ================================================================== [ 74.461586][ T8468] Disabling lock debugging due to kernel taint [ 74.470620][ T8468] Kernel panic - not syncing: panic_on_warn set ... [ 74.477675][ T8468] CPU: 0 PID: 8468 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 74.489101][ T8468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.499910][ T8468] Call Trace: [ 74.503327][ T8468] dump_stack+0x141/0x1d7 [ 74.509074][ T8468] panic+0x306/0x73d [ 74.513726][ T8468] ? __warn_printk+0xf3/0xf3 [ 74.518600][ T8468] ? preempt_schedule_common+0x59/0xc0 [ 74.524298][ T8468] ? copyout.part.0+0xd7/0x110 [ 74.529640][ T8468] ? preempt_schedule_thunk+0x16/0x18 [ 74.535191][ T8468] ? trace_hardirqs_on+0x38/0x1c0 [ 74.541627][ T8468] ? trace_hardirqs_on+0x51/0x1c0 [ 74.547337][ T8468] ? copyout.part.0+0xd7/0x110 [ 74.552724][ T8468] ? copyout.part.0+0xd7/0x110 [ 74.559150][ T8468] end_report.cold+0x5a/0x5a [ 74.564815][ T8468] kasan_report.cold+0x6a/0xd8 [ 74.570081][ T8468] ? copyout.part.0+0xd7/0x110 [ 74.575129][ T8468] kasan_check_range+0x13d/0x180 [ 74.580578][ T8468] copyout.part.0+0xd7/0x110 [ 74.585498][ T8468] _copy_to_iter+0x2b4/0x1850 [ 74.590974][ T8468] ? lock_chain_count+0x20/0x20 [ 74.596577][ T8468] ? ip_local_deliver_finish+0x240/0x370 [ 74.602399][ T8468] ? _copy_from_iter_nocache+0x1440/0x1440 [ 74.610459][ T8468] ? ip_local_deliver+0x195/0x200 [ 74.617720][ T8468] ? ip_sublist_rcv_finish+0x9a/0x2c0 [ 74.624900][ T8468] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 74.631323][ T8468] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.637748][ T8468] ? __virt_addr_valid+0x5d/0x2d0 [ 74.643210][ T8468] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 74.649563][ T8468] ? __phys_addr_symbol+0x2c/0x70 [ 74.655339][ T8468] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.661159][ T8468] ? __check_object_size+0x18a/0x3f0 [ 74.666748][ T8468] simple_copy_to_iter+0x4c/0x70 [ 74.671965][ T8468] __skb_datagram_iter+0x4a7/0x770 [ 74.677267][ T8468] ? zerocopy_sg_from_iter+0x110/0x110 [ 74.683509][ T8468] skb_copy_datagram_iter+0x40/0x50 [ 74.689764][ T8468] tcp_recvmsg_locked+0x1048/0x22f0 [ 74.695816][ T8468] ? tcp_splice_read+0x8b0/0x8b0 [ 74.700993][ T8468] ? mark_held_locks+0x9f/0xe0 [ 74.705765][ T8468] ? __local_bh_enable_ip+0xa0/0x120 [ 74.711348][ T8468] tcp_recvmsg+0x134/0x550 [ 74.715788][ T8468] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 74.721261][ T8468] ? aa_sk_perm+0x311/0xab0 [ 74.725771][ T8468] inet_recvmsg+0x11b/0x5e0 [ 74.730375][ T8468] ? inet_sendpage+0x140/0x140 [ 74.735133][ T8468] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.741509][ T8468] ? security_socket_recvmsg+0x8f/0xc0 [ 74.747401][ T8468] sock_read_iter+0x33c/0x470 [ 74.752179][ T8468] ? ____sys_recvmsg+0x600/0x600 [ 74.757117][ T8468] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.763357][ T8468] ? fsnotify+0xa58/0x1060 [ 74.767785][ T8468] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.774579][ T8468] new_sync_read+0x5b7/0x6e0 [ 74.779942][ T8468] ? ksys_lseek+0x1b0/0x1b0 [ 74.784906][ T8468] vfs_read+0x35c/0x570 [ 74.789288][ T8468] ksys_read+0x1ee/0x250 [ 74.793864][ T8468] ? vfs_write+0xa40/0xa40 [ 74.798843][ T8468] ? syscall_enter_from_user_mode+0x27/0x70 [ 74.804960][ T8468] do_syscall_64+0x3a/0xb0 [ 74.809994][ T8468] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 74.815908][ T8468] RIP: 0033:0x4af19b [ 74.820050][ T8468] 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 [ 74.840448][ T8468] RSP: 002b:000000c0000c5850 EFLAGS: 00000206 ORIG_RAX: 0000000000000000 [ 74.849353][ T8468] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af19b [ 74.857768][ T8468] RDX: 0000000000001000 RSI: 000000c0000e2000 RDI: 0000000000000006 [ 74.866547][ T8468] RBP: 000000c0000c58a0 R08: 0000000000000001 R09: 0000000000000002 [ 74.874849][ T8468] R10: 0000000000003aa2 R11: 0000000000000206 R12: 0000000000003a9e [ 74.884498][ T8468] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000002 [ 74.894075][ T8468] Kernel Offset: disabled [ 74.898669][ T8468] Rebooting in 86400 seconds..