[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.77' (ECDSA) to the list of known hosts. 2021/05/02 21:34:14 fuzzer started 2021/05/02 21:34:15 dialing manager at 10.128.0.169:44661 2021/05/02 21:34:15 syscalls: 3571 2021/05/02 21:34:15 code coverage: enabled 2021/05/02 21:34:15 comparison tracing: enabled 2021/05/02 21:34:15 extra coverage: enabled 2021/05/02 21:34:15 setuid sandbox: enabled 2021/05/02 21:34:15 namespace sandbox: enabled 2021/05/02 21:34:15 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/02 21:34:15 fault injection: enabled 2021/05/02 21:34:15 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/02 21:34:15 net packet injection: enabled 2021/05/02 21:34:15 net device setup: enabled 2021/05/02 21:34:15 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/02 21:34:15 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/02 21:34:15 USB emulation: enabled 2021/05/02 21:34:15 hci packet injection: enabled 2021/05/02 21:34:15 wifi device emulation: enabled 2021/05/02 21:34:15 802.15.4 emulation: enabled 2021/05/02 21:34:15 fetching corpus: 0, signal 0/2000 (executing program) 2021/05/02 21:34:15 fetching corpus: 50, signal 70463/74111 (executing program) 2021/05/02 21:34:15 fetching corpus: 100, signal 93828/99136 (executing program) 2021/05/02 21:34:15 fetching corpus: 150, signal 114914/121742 (executing program) 2021/05/02 21:34:16 fetching corpus: 200, signal 134179/142428 (executing program) 2021/05/02 21:34:16 fetching corpus: 250, signal 152841/162470 (executing program) syzkaller login: [ 70.799494][ T8425] ================================================================== [ 70.807744][ T8425] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 70.815240][ T8425] Read of size 1600 at addr 108548c02edb0010 by task syz-fuzzer/8425 [ 70.823311][ T8425] [ 70.825617][ T8425] CPU: 0 PID: 8425 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 70.835185][ T8425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.845256][ T8425] Call Trace: [ 70.848575][ T8425] dump_stack+0x141/0x1d7 [ 70.852937][ T8425] ? copyout.part.0+0xd7/0x110 [ 70.857722][ T8425] kasan_report.cold+0x5f/0xd8 [ 70.862522][ T8425] ? copyout.part.0+0xd7/0x110 [ 70.867280][ T8425] kasan_check_range+0x13d/0x180 [ 70.872212][ T8425] copyout.part.0+0xd7/0x110 [ 70.876813][ T8425] _copy_to_iter+0x2b4/0x1850 [ 70.881513][ T8425] ? lock_chain_count+0x20/0x20 [ 70.886363][ T8425] ? _copy_from_iter_nocache+0x1440/0x1440 [ 70.892197][ T8425] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 70.898433][ T8425] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.904202][ T8425] ? __virt_addr_valid+0x5d/0x2d0 [ 70.909224][ T8425] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.915460][ T8425] ? __phys_addr_symbol+0x2c/0x70 [ 70.920478][ T8425] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.926225][ T8425] ? __check_object_size+0x18a/0x3f0 [ 70.931504][ T8425] simple_copy_to_iter+0x4c/0x70 [ 70.936428][ T8425] __skb_datagram_iter+0x4a7/0x770 [ 70.941526][ T8425] ? zerocopy_sg_from_iter+0x110/0x110 [ 70.946971][ T8425] skb_copy_datagram_iter+0x40/0x50 [ 70.952172][ T8425] tcp_recvmsg_locked+0x1048/0x22f0 [ 70.957369][ T8425] ? tcp_splice_read+0x8b0/0x8b0 [ 70.962429][ T8425] ? mark_held_locks+0x9f/0xe0 [ 70.967187][ T8425] ? __local_bh_enable_ip+0xa0/0x120 [ 70.972461][ T8425] tcp_recvmsg+0x134/0x550 [ 70.976888][ T8425] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 70.982279][ T8425] ? aa_sk_perm+0x311/0xab0 [ 70.987213][ T8425] inet_recvmsg+0x11b/0x5e0 [ 70.991710][ T8425] ? inet_sendpage+0x140/0x140 [ 70.996505][ T8425] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.002731][ T8425] ? security_socket_recvmsg+0x8f/0xc0 [ 71.008209][ T8425] sock_read_iter+0x33c/0x470 [ 71.012896][ T8425] ? ____sys_recvmsg+0x600/0x600 [ 71.017833][ T8425] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.024126][ T8425] ? fsnotify+0xa58/0x1060 [ 71.028539][ T8425] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.034778][ T8425] new_sync_read+0x5b7/0x6e0 [ 71.039392][ T8425] ? ksys_lseek+0x1b0/0x1b0 [ 71.043888][ T8425] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 71.049897][ T8425] vfs_read+0x35c/0x570 [ 71.054061][ T8425] ksys_read+0x1ee/0x250 [ 71.058315][ T8425] ? vfs_write+0xa40/0xa40 [ 71.062713][ T8425] ? syscall_enter_from_user_mode+0x27/0x70 [ 71.068594][ T8425] do_syscall_64+0x3a/0xb0 [ 71.073001][ T8425] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.078902][ T8425] RIP: 0033:0x4af19b [ 71.082790][ 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 [ 71.102381][ T8425] RSP: 002b:000000c0004c1828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 71.110974][ T8425] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 71.118959][ T8425] RDX: 0000000000001000 RSI: 000000c00040b000 RDI: 0000000000000006 [ 71.126948][ T8425] RBP: 000000c0004c1878 R08: 0000000000000001 R09: 0000000000000002 [ 71.134904][ T8425] R10: 0000000000001a8b R11: 0000000000000212 R12: ffffffffffffffff [ 71.142858][ T8425] R13: 0000000000002000 R14: 0000000000000010 R15: 0000000000000004 [ 71.150834][ T8425] ================================================================== [ 71.158910][ T8425] Disabling lock debugging due to kernel taint [ 71.166129][ T3257] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.166176][ T3257] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.178844][ T8425] Kernel panic - not syncing: panic_on_warn set ... [ 71.178859][ T8425] CPU: 0 PID: 8425 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 71.178923][ T8425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.178936][ T8425] Call Trace: [ 71.178943][ T8425] dump_stack+0x141/0x1d7 [ 71.178974][ T8425] panic+0x306/0x73d [ 71.179000][ T8425] ? __warn_printk+0xf3/0xf3 [ 71.179026][ T8425] ? preempt_schedule_common+0x59/0xc0 [ 71.179055][ T8425] ? copyout.part.0+0xd7/0x110 [ 71.179079][ T8425] ? preempt_schedule_thunk+0x16/0x18 [ 71.179106][ T8425] ? trace_hardirqs_on+0x38/0x1c0 [ 71.179128][ T8425] ? trace_hardirqs_on+0x51/0x1c0 [ 71.179149][ T8425] ? copyout.part.0+0xd7/0x110 [ 71.179172][ T8425] ? copyout.part.0+0xd7/0x110 [ 71.179194][ T8425] end_report.cold+0x5a/0x5a [ 71.179219][ T8425] kasan_report.cold+0x6a/0xd8 [ 71.179244][ T8425] ? copyout.part.0+0xd7/0x110 [ 71.179267][ T8425] kasan_check_range+0x13d/0x180 [ 71.179292][ T8425] copyout.part.0+0xd7/0x110 [ 71.179316][ T8425] _copy_to_iter+0x2b4/0x1850 [ 71.179342][ T8425] ? lock_chain_count+0x20/0x20 [ 71.179371][ T8425] ? _copy_from_iter_nocache+0x1440/0x1440 [ 71.179397][ T8425] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 71.179427][ T8425] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 71.179453][ T8425] ? __virt_addr_valid+0x5d/0x2d0 [ 71.179476][ T8425] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 71.179504][ T8425] ? __phys_addr_symbol+0x2c/0x70 [ 71.179525][ T8425] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 71.179552][ T8425] ? __check_object_size+0x18a/0x3f0 [ 71.179579][ T8425] simple_copy_to_iter+0x4c/0x70 [ 71.179603][ T8425] __skb_datagram_iter+0x4a7/0x770 [ 71.179627][ T8425] ? zerocopy_sg_from_iter+0x110/0x110 [ 71.179653][ T8425] skb_copy_datagram_iter+0x40/0x50 [ 71.179676][ T8425] tcp_recvmsg_locked+0x1048/0x22f0 [ 71.179708][ T8425] ? tcp_splice_read+0x8b0/0x8b0 [ 71.179735][ T8425] ? mark_held_locks+0x9f/0xe0 [ 71.179762][ T8425] ? __local_bh_enable_ip+0xa0/0x120 [ 71.179789][ T8425] tcp_recvmsg+0x134/0x550 [ 71.179814][ T8425] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 71.179858][ T8425] ? aa_sk_perm+0x311/0xab0 [ 71.179890][ T8425] inet_recvmsg+0x11b/0x5e0 [ 71.179917][ T8425] ? inet_sendpage+0x140/0x140 [ 71.179944][ T8425] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.179972][ T8425] ? security_socket_recvmsg+0x8f/0xc0 [ 71.180013][ T8425] sock_read_iter+0x33c/0x470 [ 71.180039][ T8425] ? ____sys_recvmsg+0x600/0x600 [ 71.180067][ T8425] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.180095][ T8425] ? fsnotify+0xa58/0x1060 [ 71.180120][ T8425] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.180150][ T8425] new_sync_read+0x5b7/0x6e0 [ 71.180172][ T8425] ? ksys_lseek+0x1b0/0x1b0 [ 71.180193][ T8425] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 71.180228][ T8425] vfs_read+0x35c/0x570 [ 71.180250][ T8425] ksys_read+0x1ee/0x250 [ 71.180273][ T8425] ? vfs_write+0xa40/0xa40 [ 71.180295][ T8425] ? syscall_enter_from_user_mode+0x27/0x70 [ 71.180321][ T8425] do_syscall_64+0x3a/0xb0 [ 71.180346][ T8425] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.180386][ T8425] RIP: 0033:0x4af19b [ 71.180402][ 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 [ 71.180438][ T8425] RSP: 002b:000000c0004c1828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 71.180475][ T8425] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af19b [ 71.180490][ T8425] RDX: 0000000000001000 RSI: 000000c00040b000 RDI: 0000000000000006 [ 71.180503][ T8425] RBP: 000000c0004c1878 R08: 0000000000000001 R09: 0000000000000002 [ 71.180533][ T8425] R10: 0000000000001a8b R11: 0000000000000212 R12: ffffffffffffffff [ 71.180548][ T8425] R13: 0000000000002000 R14: 0000000000000010 R15: 0000000000000004 [ 71.180911][ T8425] Kernel Offset: disabled [ 71.561611][ T8425] Rebooting in 86400 seconds..