Warning: Permanently added '10.128.1.29' (ECDSA) to the list of known hosts. 2021/05/03 04:16:06 fuzzer started 2021/05/03 04:16:07 dialing manager at 10.128.0.169:44661 2021/05/03 04:16:07 syscalls: 3571 2021/05/03 04:16:07 code coverage: enabled 2021/05/03 04:16:07 comparison tracing: enabled 2021/05/03 04:16:07 extra coverage: enabled 2021/05/03 04:16:07 setuid sandbox: enabled 2021/05/03 04:16:07 namespace sandbox: enabled 2021/05/03 04:16:07 Android sandbox: /sys/fs/selinux/policy does not exist 2021/05/03 04:16:07 fault injection: enabled 2021/05/03 04:16:07 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/03 04:16:07 net packet injection: enabled 2021/05/03 04:16:07 net device setup: enabled 2021/05/03 04:16:07 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/03 04:16:07 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/03 04:16:07 USB emulation: enabled 2021/05/03 04:16:07 hci packet injection: enabled 2021/05/03 04:16:07 wifi device emulation: enabled 2021/05/03 04:16:07 802.15.4 emulation: enabled 2021/05/03 04:16:07 fetching corpus: 0, signal 0/2000 (executing program) syzkaller login: [ 73.229769][ T8436] ================================================================== [ 73.238084][ T8436] BUG: KASAN: wild-memory-access in copyout.part.0+0xd7/0x110 [ 73.245583][ T8436] Read of size 2160 at addr 108548c027ac0010 by task syz-fuzzer/8436 [ 73.253881][ T8436] [ 73.256284][ T8436] CPU: 0 PID: 8436 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 73.265822][ T8436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.275956][ T8436] Call Trace: [ 73.279245][ T8436] dump_stack+0x141/0x1d7 [ 73.283589][ T8436] ? copyout.part.0+0xd7/0x110 [ 73.288349][ T8436] kasan_report.cold+0x5f/0xd8 [ 73.294192][ T8436] ? copyout.part.0+0xd7/0x110 [ 73.298960][ T8436] kasan_check_range+0x13d/0x180 [ 73.303891][ T8436] copyout.part.0+0xd7/0x110 [ 73.308472][ T8436] _copy_to_iter+0x2b4/0x1850 [ 73.313138][ T8436] ? lock_chain_count+0x20/0x20 [ 73.317979][ T8436] ? _copy_from_iter_nocache+0x1440/0x1440 [ 73.323770][ T8436] ? tcp_mstamp_refresh+0x12/0xa0 [ 73.329036][ T8436] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 73.335275][ T8436] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 73.340992][ T8436] ? __virt_addr_valid+0x5d/0x2d0 [ 73.347051][ T8436] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 73.353280][ T8436] ? __phys_addr_symbol+0x2c/0x70 [ 73.358287][ T8436] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 73.363998][ T8436] ? __check_object_size+0x18a/0x3f0 [ 73.369271][ T8436] simple_copy_to_iter+0x4c/0x70 [ 73.374210][ T8436] __skb_datagram_iter+0x4a7/0x770 [ 73.379329][ T8436] ? zerocopy_sg_from_iter+0x110/0x110 [ 73.384785][ T8436] skb_copy_datagram_iter+0x40/0x50 [ 73.389988][ T8436] tcp_recvmsg_locked+0x1048/0x22f0 [ 73.395184][ T8436] ? tcp_splice_read+0x8b0/0x8b0 [ 73.400105][ T8436] ? mark_held_locks+0x9f/0xe0 [ 73.404887][ T8436] ? __local_bh_enable_ip+0xa0/0x120 [ 73.410182][ T8436] tcp_recvmsg+0x134/0x550 [ 73.414639][ T8436] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 73.420034][ T8436] ? aa_sk_perm+0x311/0xab0 [ 73.424532][ T8436] inet_recvmsg+0x11b/0x5e0 [ 73.429038][ T8436] ? inet_sendpage+0x140/0x140 [ 73.433799][ T8436] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.440028][ T8436] ? security_socket_recvmsg+0x8f/0xc0 [ 73.445494][ T8436] sock_read_iter+0x33c/0x470 [ 73.450162][ T8436] ? ____sys_recvmsg+0x600/0x600 [ 73.455091][ T8436] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.461319][ T8436] ? fsnotify+0xa58/0x1060 [ 73.465741][ T8436] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.471989][ T8436] new_sync_read+0x5b7/0x6e0 [ 73.476577][ T8436] ? ksys_lseek+0x1b0/0x1b0 [ 73.481063][ T8436] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 73.487043][ T8436] vfs_read+0x35c/0x570 [ 73.491185][ T8436] ksys_read+0x1ee/0x250 [ 73.495413][ T8436] ? vfs_write+0xa40/0xa40 [ 73.499845][ T8436] ? syscall_enter_from_user_mode+0x27/0x70 [ 73.505739][ T8436] do_syscall_64+0x3a/0xb0 [ 73.510145][ T8436] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 73.516111][ T8436] RIP: 0033:0x4af19b [ 73.519990][ T8436] 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 [ 73.539587][ T8436] RSP: 002b:000000c0004b7828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 73.547999][ T8436] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af19b [ 73.556102][ T8436] RDX: 0000000000001000 RSI: 000000c0004fe000 RDI: 0000000000000006 [ 73.564083][ T8436] RBP: 000000c0004b7878 R08: 0000000000000001 R09: 0000000000000002 [ 73.572046][ T8436] R10: 000000000000636d R11: 0000000000000212 R12: 0000000000006369 [ 73.580002][ T8436] R13: 0000000000000200 R14: 0000000000000002 R15: 0000000000000002 [ 73.587985][ T8436] ================================================================== [ 73.596022][ T8436] Disabling lock debugging due to kernel taint [ 73.603798][ T8436] Kernel panic - not syncing: panic_on_warn set ... [ 73.610410][ T8436] CPU: 1 PID: 8436 Comm: syz-fuzzer Tainted: G B 5.12.0-rc8-next-20210423-syzkaller #0 [ 73.621351][ T8436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.631423][ T8436] Call Trace: [ 73.634692][ T8436] dump_stack+0x141/0x1d7 [ 73.639020][ T8436] panic+0x306/0x73d [ 73.642907][ T8436] ? __warn_printk+0xf3/0xf3 [ 73.647485][ T8436] ? preempt_schedule_common+0x59/0xc0 [ 73.652935][ T8436] ? copyout.part.0+0xd7/0x110 [ 73.657708][ T8436] ? preempt_schedule_thunk+0x16/0x18 [ 73.663135][ T8436] ? trace_hardirqs_on+0x38/0x1c0 [ 73.668147][ T8436] ? trace_hardirqs_on+0x51/0x1c0 [ 73.673418][ T8436] ? copyout.part.0+0xd7/0x110 [ 73.678168][ T8436] ? copyout.part.0+0xd7/0x110 [ 73.682920][ T8436] end_report.cold+0x5a/0x5a [ 73.687512][ T8436] kasan_report.cold+0x6a/0xd8 [ 73.692266][ T8436] ? copyout.part.0+0xd7/0x110 [ 73.697017][ T8436] kasan_check_range+0x13d/0x180 [ 73.701955][ T8436] copyout.part.0+0xd7/0x110 [ 73.706537][ T8436] _copy_to_iter+0x2b4/0x1850 [ 73.711203][ T8436] ? lock_chain_count+0x20/0x20 [ 73.716044][ T8436] ? _copy_from_iter_nocache+0x1440/0x1440 [ 73.721838][ T8436] ? tcp_mstamp_refresh+0x12/0xa0 [ 73.726850][ T8436] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 73.733084][ T8436] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 73.738792][ T8436] ? __virt_addr_valid+0x5d/0x2d0 [ 73.743804][ T8436] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 73.750036][ T8436] ? __phys_addr_symbol+0x2c/0x70 [ 73.755046][ T8436] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 73.760752][ T8436] ? __check_object_size+0x18a/0x3f0 [ 73.766032][ T8436] simple_copy_to_iter+0x4c/0x70 [ 73.770960][ T8436] __skb_datagram_iter+0x4a7/0x770 [ 73.776059][ T8436] ? zerocopy_sg_from_iter+0x110/0x110 [ 73.781506][ T8436] skb_copy_datagram_iter+0x40/0x50 [ 73.786699][ T8436] tcp_recvmsg_locked+0x1048/0x22f0 [ 73.791892][ T8436] ? tcp_splice_read+0x8b0/0x8b0 [ 73.796819][ T8436] ? mark_held_locks+0x9f/0xe0 [ 73.801572][ T8436] ? __local_bh_enable_ip+0xa0/0x120 [ 73.806849][ T8436] tcp_recvmsg+0x134/0x550 [ 73.811258][ T8436] ? tcp_recvmsg_locked+0x22f0/0x22f0 [ 73.816624][ T8436] ? aa_sk_perm+0x311/0xab0 [ 73.821128][ T8436] inet_recvmsg+0x11b/0x5e0 [ 73.825718][ T8436] ? inet_sendpage+0x140/0x140 [ 73.830471][ T8436] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.836705][ T8436] ? security_socket_recvmsg+0x8f/0xc0 [ 73.842167][ T8436] sock_read_iter+0x33c/0x470 [ 73.846853][ T8436] ? ____sys_recvmsg+0x600/0x600 [ 73.851784][ T8436] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.858191][ T8436] ? fsnotify+0xa58/0x1060 [ 73.862689][ T8436] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.868925][ T8436] new_sync_read+0x5b7/0x6e0 [ 73.873591][ T8436] ? ksys_lseek+0x1b0/0x1b0 [ 73.878166][ T8436] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 73.884144][ T8436] vfs_read+0x35c/0x570 [ 73.888287][ T8436] ksys_read+0x1ee/0x250 [ 73.892518][ T8436] ? vfs_write+0xa40/0xa40 [ 73.897007][ T8436] ? syscall_enter_from_user_mode+0x27/0x70 [ 73.902890][ T8436] do_syscall_64+0x3a/0xb0 [ 73.907299][ T8436] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 73.913194][ T8436] RIP: 0033:0x4af19b [ 73.917074][ T8436] 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 [ 73.936668][ T8436] RSP: 002b:000000c0004b7828 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 73.945074][ T8436] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af19b [ 73.953204][ T8436] RDX: 0000000000001000 RSI: 000000c0004fe000 RDI: 0000000000000006 [ 73.961249][ T8436] RBP: 000000c0004b7878 R08: 0000000000000001 R09: 0000000000000002 [ 73.969213][ T8436] R10: 000000000000636d R11: 0000000000000212 R12: 0000000000006369 [ 73.977177][ T8436] R13: 0000000000000200 R14: 0000000000000002 R15: 0000000000000002 [ 73.985981][ T8436] Kernel Offset: disabled [ 73.990314][ T8436] Rebooting in 86400 seconds..