[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.167' (ECDSA) to the list of known hosts. 2021/05/02 16:09:48 fuzzer started 2021/05/02 16:09:49 dialing manager at 10.128.0.169:44661 2021/05/02 16:09:49 syscalls: 3571 2021/05/02 16:09:49 code coverage: enabled 2021/05/02 16:09:49 comparison tracing: enabled 2021/05/02 16:09:49 extra coverage: enabled 2021/05/02 16:09:49 setuid sandbox: enabled 2021/05/02 16:09:49 namespace sandbox: enabled 2021/05/02 16:09:49 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/02 16:09:49 fault injection: enabled 2021/05/02 16:09:49 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/02 16:09:49 net packet injection: enabled 2021/05/02 16:09:49 net device setup: enabled 2021/05/02 16:09:49 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/02 16:09:49 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/02 16:09:49 USB emulation: enabled 2021/05/02 16:09:49 hci packet injection: enabled 2021/05/02 16:09:49 wifi device emulation: enabled 2021/05/02 16:09:49 802.15.4 emulation: enabled 2021/05/02 16:09:49 fetching corpus: 0, signal 0/2000 (executing program) 2021/05/02 16:09:49 fetching corpus: 50, signal 62466/66115 (executing program) 2021/05/02 16:09:49 fetching corpus: 100, signal 89426/94745 (executing program) 2021/05/02 16:09:49 fetching corpus: 150, signal 109229/116080 (executing program) 2021/05/02 16:09:49 fetching corpus: 200, signal 129319/137606 (executing program) 2021/05/02 16:09:50 fetching corpus: 250, signal 141621/151380 (executing program) 2021/05/02 16:09:50 fetching corpus: 300, signal 148812/160094 (executing program) 2021/05/02 16:09:50 fetching corpus: 350, signal 167282/179766 (executing program) 2021/05/02 16:09:50 fetching corpus: 400, signal 176312/190132 (executing program) 2021/05/02 16:09:50 fetching corpus: 450, signal 193351/208281 (executing program) 2021/05/02 16:09:50 fetching corpus: 500, signal 204362/220522 (executing program) 2021/05/02 16:09:50 fetching corpus: 550, signal 214822/232111 (executing program) 2021/05/02 16:09:51 fetching corpus: 600, signal 222906/241363 (executing program) 2021/05/02 16:09:51 fetching corpus: 650, signal 234495/253965 (executing program) 2021/05/02 16:09:51 fetching corpus: 700, signal 240470/261079 (executing program) 2021/05/02 16:09:51 fetching corpus: 750, signal 247206/268921 (executing program) 2021/05/02 16:09:51 fetching corpus: 800, signal 255910/278588 (executing program) syzkaller login: [ 74.270689][ T8430] ================================================================== [ 74.278919][ T8430] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 74.286388][ T8430] Read of size 288 at addr 108548c01d0e0010 by task syz-fuzzer/8430 [ 74.294351][ T8430] [ 74.296661][ T8430] CPU: 0 PID: 8430 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 74.306182][ T8430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.316221][ T8430] Call Trace: [ 74.319499][ T8430] dump_stack+0x141/0x1d7 [ 74.323829][ T8430] ? copyout.part.0+0xd7/0x110 [ 74.328576][ T8430] kasan_report.cold+0x5f/0xd8 [ 74.333328][ T8430] ? copyout.part.0+0xd7/0x110 [ 74.338087][ T8430] kasan_check_range+0x13d/0x180 [ 74.343029][ T8430] copyout.part.0+0xd7/0x110 [ 74.347613][ T8430] _copy_to_iter+0x2b4/0x1850 [ 74.352345][ T8430] ? lock_chain_count+0x20/0x20 [ 74.357207][ T8430] ? _copy_from_iter_nocache+0x1440/0x1440 [ 74.363002][ T8430] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 74.369233][ T8430] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.374938][ T8430] ? __virt_addr_valid+0x5d/0x2d0 [ 74.379948][ T8430] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 74.386203][ T8430] ? __phys_addr_symbol+0x2c/0x70 [ 74.391219][ T8430] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.396925][ T8430] ? __check_object_size+0x18a/0x3f0 [ 74.402203][ T8430] simple_copy_to_iter+0x4c/0x70 [ 74.407128][ T8430] __skb_datagram_iter+0x4a7/0x770 [ 74.412251][ T8430] ? zerocopy_sg_from_iter+0x110/0x110 [ 74.417800][ T8430] skb_copy_datagram_iter+0x40/0x50 [ 74.422983][ T8430] tcp_recvmsg_locked+0x1048/0x22f0 [ 74.428178][ T8430] ? tcp_splice_read+0x8b0/0x8b0 [ 74.433100][ T8430] ? mark_held_locks+0x9f/0xe0 [ 74.437851][ T8430] ? __local_bh_enable_ip+0xa0/0x120 [ 74.443124][ T8430] tcp_recvmsg+0x134/0x550 [ 74.447527][ T8430] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 74.452890][ T8430] ? aa_sk_perm+0x311/0xab0 [ 74.457407][ T8430] inet_recvmsg+0x11b/0x5e0 [ 74.461921][ T8430] ? inet_sendpage+0x140/0x140 [ 74.466680][ T8430] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.473027][ T8430] ? security_socket_recvmsg+0x8f/0xc0 [ 74.478595][ T8430] sock_read_iter+0x33c/0x470 [ 74.483305][ T8430] ? ____sys_recvmsg+0x600/0x600 [ 74.488247][ T8430] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.494490][ T8430] ? fsnotify+0xa58/0x1060 [ 74.498905][ T8430] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.505151][ T8430] new_sync_read+0x5b7/0x6e0 [ 74.509734][ T8430] ? ksys_lseek+0x1b0/0x1b0 [ 74.514239][ T8430] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 74.520232][ T8430] vfs_read+0x35c/0x570 [ 74.524391][ T8430] ksys_read+0x1ee/0x250 [ 74.528623][ T8430] ? vfs_write+0xa40/0xa40 [ 74.533033][ T8430] ? syscall_enter_from_user_mode+0x27/0x70 [ 74.538939][ T8430] do_syscall_64+0x3a/0xb0 [ 74.543352][ T8430] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 74.549237][ T8430] RIP: 0033:0x4af19b [ 74.553121][ T8430] 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 [ 74.572718][ T8430] RSP: 002b:000000c0000a9850 EFLAGS: 00000206 ORIG_RAX: 0000000000000000 [ 74.581123][ T8430] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af19b [ 74.589256][ T8430] RDX: 0000000000001000 RSI: 000000c000078000 RDI: 0000000000000006 [ 74.597217][ T8430] RBP: 000000c0000a98a0 R08: 0000000000000001 R09: 0000000000000002 [ 74.605186][ T8430] R10: 0000000000000cba R11: 0000000000000206 R12: ffffffffffffffff [ 74.613175][ T8430] R13: 0000000000002000 R14: 0000000000000010 R15: 0000000000000004 [ 74.621170][ T8430] ================================================================== [ 74.629222][ T8430] Disabling lock debugging due to kernel taint [ 74.636993][ T8430] Kernel panic - not syncing: panic_on_warn set ... [ 74.643707][ T8430] CPU: 1 PID: 8430 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 74.654645][ T8430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.664693][ T8430] Call Trace: [ 74.667972][ T8430] dump_stack+0x141/0x1d7 [ 74.672315][ T8430] panic+0x306/0x73d [ 74.676201][ T8430] ? __warn_printk+0xf3/0xf3 [ 74.680784][ T8430] ? preempt_schedule_common+0x59/0xc0 [ 74.686248][ T8430] ? copyout.part.0+0xd7/0x110 [ 74.691000][ T8430] ? preempt_schedule_thunk+0x16/0x18 [ 74.696368][ T8430] ? trace_hardirqs_on+0x38/0x1c0 [ 74.701379][ T8430] ? trace_hardirqs_on+0x51/0x1c0 [ 74.706399][ T8430] ? copyout.part.0+0xd7/0x110 [ 74.711151][ T8430] ? copyout.part.0+0xd7/0x110 [ 74.715900][ T8430] end_report.cold+0x5a/0x5a [ 74.720480][ T8430] kasan_report.cold+0x6a/0xd8 [ 74.725235][ T8430] ? copyout.part.0+0xd7/0x110 [ 74.729985][ T8430] kasan_check_range+0x13d/0x180 [ 74.735020][ T8430] copyout.part.0+0xd7/0x110 [ 74.739601][ T8430] _copy_to_iter+0x2b4/0x1850 [ 74.744268][ T8430] ? lock_chain_count+0x20/0x20 [ 74.749110][ T8430] ? _copy_from_iter_nocache+0x1440/0x1440 [ 74.754908][ T8430] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 74.761140][ T8430] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.766848][ T8430] ? __virt_addr_valid+0x5d/0x2d0 [ 74.771859][ T8430] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 74.778091][ T8430] ? __phys_addr_symbol+0x2c/0x70 [ 74.783113][ T8430] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.788834][ T8430] ? __check_object_size+0x18a/0x3f0 [ 74.794110][ T8430] simple_copy_to_iter+0x4c/0x70 [ 74.799039][ T8430] __skb_datagram_iter+0x4a7/0x770 [ 74.804136][ T8430] ? zerocopy_sg_from_iter+0x110/0x110 [ 74.809593][ T8430] skb_copy_datagram_iter+0x40/0x50 [ 74.814805][ T8430] tcp_recvmsg_locked+0x1048/0x22f0 [ 74.819998][ T8430] ? tcp_splice_read+0x8b0/0x8b0 [ 74.824927][ T8430] ? mark_held_locks+0x9f/0xe0 [ 74.829685][ T8430] ? __local_bh_enable_ip+0xa0/0x120 [ 74.834962][ T8430] tcp_recvmsg+0x134/0x550 [ 74.839398][ T8430] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 74.844763][ T8430] ? aa_sk_perm+0x311/0xab0 [ 74.849257][ T8430] inet_recvmsg+0x11b/0x5e0 [ 74.853752][ T8430] ? inet_sendpage+0x140/0x140 [ 74.858505][ T8430] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.864738][ T8430] ? security_socket_recvmsg+0x8f/0xc0 [ 74.870187][ T8430] sock_read_iter+0x33c/0x470 [ 74.874858][ T8430] ? ____sys_recvmsg+0x600/0x600 [ 74.879785][ T8430] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.886016][ T8430] ? fsnotify+0xa58/0x1060 [ 74.890422][ T8430] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.896654][ T8430] new_sync_read+0x5b7/0x6e0 [ 74.901234][ T8430] ? ksys_lseek+0x1b0/0x1b0 [ 74.905722][ T8430] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 74.911703][ T8430] vfs_read+0x35c/0x570 [ 74.915862][ T8430] ksys_read+0x1ee/0x250 [ 74.920091][ T8430] ? vfs_write+0xa40/0xa40 [ 74.924492][ T8430] ? syscall_enter_from_user_mode+0x27/0x70 [ 74.930462][ T8430] do_syscall_64+0x3a/0xb0 [ 74.934868][ T8430] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 74.940765][ T8430] RIP: 0033:0x4af19b [ 74.944645][ T8430] 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 [ 74.964252][ T8430] RSP: 002b:000000c0000a9850 EFLAGS: 00000206 ORIG_RAX: 0000000000000000 [ 74.972665][ T8430] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af19b [ 74.980630][ T8430] RDX: 0000000000001000 RSI: 000000c000078000 RDI: 0000000000000006 [ 74.988610][ T8430] RBP: 000000c0000a98a0 R08: 0000000000000001 R09: 0000000000000002 [ 74.996564][ T8430] R10: 0000000000000cba R11: 0000000000000206 R12: ffffffffffffffff [ 75.004521][ T8430] R13: 0000000000002000 R14: 0000000000000010 R15: 0000000000000004 [ 75.013060][ T8430] Kernel Offset: disabled [ 75.017380][ T8430] Rebooting in 86400 seconds..