Warning: Permanently added '10.128.10.17' (ECDSA) to the list of known hosts.
2020/12/31 02:20:05 fuzzer started
2020/12/31 02:20:05 dialing manager at 10.128.0.105:39703
2020/12/31 02:20:08 syscalls: 3466
2020/12/31 02:20:08 code coverage: enabled
2020/12/31 02:20:08 comparison tracing: enabled
2020/12/31 02:20:08 extra coverage: enabled
2020/12/31 02:20:08 setuid sandbox: enabled
2020/12/31 02:20:08 namespace sandbox: enabled
2020/12/31 02:20:08 Android sandbox: /sys/fs/selinux/policy does not exist
2020/12/31 02:20:08 fault injection: enabled
2020/12/31 02:20:08 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/12/31 02:20:08 net packet injection: enabled
2020/12/31 02:20:08 net device setup: enabled
2020/12/31 02:20:08 concurrency sanitizer: enabled
2020/12/31 02:20:08 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/12/31 02:20:08 USB emulation: enabled
2020/12/31 02:20:08 hci packet injection: enabled
2020/12/31 02:20:08 wifi device emulation: enabled
2020/12/31 02:20:09 suppressing KCSAN reports in functions: 'ext4_free_inode' '__ext4_new_inode' 'futex_wait_queue_me' 'blk_mq_rq_ctx_init' 'ext4_free_inodes_count' '__xa_clear_mark' 'blk_mq_dispatch_rq_list' 'ext4_mb_good_group' 'generic_file_buffered_read' 'dd_has_work' 'wbt_issue' 'complete_signal' 'ext4_writepages' 'do_signal_stop' 'tick_nohz_next_event' 'do_select' 'generic_write_end' 'kauditd_thread' 'blk_mq_request_bypass_insert' '_prb_read_valid' 'audit_log_start' 'blk_mq_sched_dispatch_requests' 'alloc_pid' 'ext4_mark_iloc_dirty' 'n_tty_receive_buf_common' 
02:20:36 executing program 0:
prctl$PR_SET_PTRACER(0x59616d61, 0xffffffffffffffff)
clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff)
r0 = gettid()
wait4(0x0, 0x0, 0x80000002, 0x0)
vmsplice(0xffffffffffffffff, &(0x7f00000000c0)=[{0x0}, {0x0}, {0x0}, {&(0x7f0000000240)="66530700ae897094e71b0fb1f138a925d86800278dcff47d01000067dd32378f364602812c66538d75000000000000000000bb9fb045f2d1eaa302ab6c2fef23631e3ea1315b9532f3af2f5e153eb78020fa00eb29884a07da1f7cbee7547a405704878afe50a73a66faff77be062c5d8d5ac1adf5ce37ff15e457920611a4210db259a7a63f09bf0945a8e47e4dcfd6d49061492187ca54b888b8cba803db8e99a6ff2b67279214ef6168bf6a4b6d28e4bb588c2cc22aa223418a41d5fcab3cd7c8ea0b08f9dc4087da8ea261471f1d3adf58b585baee2bb43b", 0xda}], 0x4, 0x0)
ptrace$setopts(0x4206, r0, 0x0, 0x5)
tkill(r0, 0x34)
ptrace$cont(0x18, r0, 0x0, 0x0)
ptrace$setregs(0xd, r0, 0x0, &(0x7f0000000080))
r1 = gettid()
tkill(r1, 0x40)

syzkaller login: [   61.024353][ T8470] ==================================================================
[   61.032511][ T8470] BUG: KCSAN: data-race in tomoyo_domain_quota_is_ok / tomoyo_merge_path_acl
[   61.041270][ T8470] 
[   61.043609][ T8470] write to 0xffff88810b78d1da of 2 bytes by task 8453 on cpu 0:
[   61.051245][ T8470]  tomoyo_merge_path_acl+0x4c/0x70
[   61.056351][ T8470]  tomoyo_update_domain+0x337/0x3a0
[   61.061545][ T8470]  tomoyo_write_file+0x210/0x910
[   61.066503][ T8470]  tomoyo_supervisor+0xaad/0xb20
[   61.071443][ T8470]  tomoyo_path_perm+0x261/0x330
[   61.076294][ T8470]  tomoyo_path_truncate+0x18/0x20
[   61.081322][ T8470]  security_path_truncate+0x7f/0xd0
[   61.086517][ T8470]  do_sys_ftruncate+0x38d/0x530
[   61.091371][ T8470]  __x64_sys_ftruncate+0x2f/0x40
[   61.096301][ T8470]  do_syscall_64+0x39/0x80
[   61.100731][ T8470]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   61.106642][ T8470] 
[   61.108958][ T8470] read to 0xffff88810b78d1da of 2 bytes by task 8470 on cpu 1:
[   61.116498][ T8470]  tomoyo_domain_quota_is_ok+0xd7/0x2d0
[   61.122041][ T8470]  tomoyo_supervisor+0x1f4/0xb20
[   61.126978][ T8470]  tomoyo_execute_permission+0x169/0x190
[   61.132607][ T8470]  tomoyo_find_next_domain+0x213/0x10a0
[   61.138150][ T8470]  tomoyo_bprm_check_security+0x96/0xd0
[   61.143695][ T8470]  security_bprm_check+0x3f/0x90
[   61.148627][ T8470]  exec_binprm+0x143/0x720
[   61.153042][ T8470]  bprm_execve+0x37e/0x4f0
[   61.157454][ T8470]  do_execveat_common+0x60c/0x6c0
[   61.162484][ T8470]  __x64_sys_execve+0x56/0x70
[   61.167157][ T8470]  do_syscall_64+0x39/0x80
[   61.171574][ T8470]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   61.177465][ T8470] 
[   61.179796][ T8470] Reported by Kernel Concurrency Sanitizer on:
[   61.185933][ T8470] CPU: 1 PID: 8470 Comm: syz-fuzzer Not tainted 5.11.0-rc1-syzkaller #0
[   61.194257][ T8470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   61.204324][ T8470] ==================================================================
[   61.212987][ T8470] Kernel panic - not syncing: panic_on_warn set ...
[   61.219575][ T8470] CPU: 1 PID: 8470 Comm: syz-fuzzer Not tainted 5.11.0-rc1-syzkaller #0
[   61.227917][ T8470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   61.237968][ T8470] Call Trace:
[   61.241243][ T8470]  dump_stack+0x116/0x15d
[   61.245573][ T8470]  panic+0x1e7/0x5fa
[   61.249471][ T8470]  ? vprintk_emit+0x2e2/0x360
[   61.254151][ T8470]  kcsan_report+0x67b/0x680
[   61.258676][ T8470]  ? kcsan_setup_watchpoint+0x47b/0x4e0
[   61.264219][ T8470]  ? tomoyo_domain_quota_is_ok+0xd7/0x2d0
[   61.269935][ T8470]  ? tomoyo_supervisor+0x1f4/0xb20
[   61.275066][ T8470]  ? tomoyo_execute_permission+0x169/0x190
[   61.280872][ T8470]  ? tomoyo_find_next_domain+0x213/0x10a0
[   61.286587][ T8470]  ? tomoyo_bprm_check_security+0x96/0xd0
[   61.292399][ T8470]  ? security_bprm_check+0x3f/0x90
[   61.297509][ T8470]  ? exec_binprm+0x143/0x720
[   61.302100][ T8470]  ? bprm_execve+0x37e/0x4f0
[   61.306692][ T8470]  ? do_execveat_common+0x60c/0x6c0
[   61.311893][ T8470]  ? __x64_sys_execve+0x56/0x70
[   61.316762][ T8470]  ? do_syscall_64+0x39/0x80
[   61.321352][ T8470]  ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   61.327430][ T8470]  ? irqentry_exit+0x2a/0x40
[   61.332039][ T8470]  ? sysvec_apic_timer_interrupt+0x80/0x90
[   61.337858][ T8470]  ? asm_sysvec_apic_timer_interrupt+0x12/0x20
[   61.344026][ T8470]  kcsan_setup_watchpoint+0x47b/0x4e0
[   61.349408][ T8470]  tomoyo_domain_quota_is_ok+0xd7/0x2d0
[   61.354970][ T8470]  tomoyo_supervisor+0x1f4/0xb20
[   61.359906][ T8470]  ? tomoyo_execute_permission+0x190/0x190
[   61.365729][ T8470]  tomoyo_execute_permission+0x169/0x190
[   61.371362][ T8470]  tomoyo_find_next_domain+0x213/0x10a0
[   61.376906][ T8470]  tomoyo_bprm_check_security+0x96/0xd0
[   61.382459][ T8470]  security_bprm_check+0x3f/0x90
[   61.387399][ T8470]  exec_binprm+0x143/0x720
[   61.391825][ T8470]  bprm_execve+0x37e/0x4f0
[   61.396244][ T8470]  do_execveat_common+0x60c/0x6c0
[   61.401289][ T8470]  __x64_sys_execve+0x56/0x70
[   61.405967][ T8470]  do_syscall_64+0x39/0x80
[   61.410405][ T8470]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   61.416305][ T8470] RIP: 0033:0x4b1196
[   61.420194][ T8470] Code: 48 c7 44 24 50 00 00 00 00 e8 96 c5 f8 ff c3 cc cc cc cc cc 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 1b 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
[   61.439797][ T8470] RSP: 002b:000000c00a305378 EFLAGS: 00000202 ORIG_RAX: 000000000000003b
[   61.448474][ T8470] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004b1196
[   61.456438][ T8470] RDX: 000000c0045ffab0 RSI: 000000c004838160 RDI: 000000c0076599c0
[   61.464411][ T8470] RBP: 000000c00a305518 R08: 0000000000000008 R09: 0000000000000000
[   61.472407][ T8470] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000004a89c7
[   61.480385][ T8470] R13: 000000000000000b R14: 000000000000000a R15: 00000000000000aa
[   61.488838][ T8470] Kernel Offset: disabled
[   61.493156][ T8470] Rebooting in 86400 seconds..