Warning: Permanently added '10.128.1.39' (ECDSA) to the list of known hosts. 2020/12/06 10:41:07 fuzzer started 2020/12/06 10:41:08 dialing manager at 10.128.0.105:39689 2020/12/06 10:41:16 syscalls: 3454 2020/12/06 10:41:16 code coverage: enabled 2020/12/06 10:41:16 comparison tracing: enabled 2020/12/06 10:41:16 extra coverage: enabled 2020/12/06 10:41:16 setuid sandbox: enabled 2020/12/06 10:41:16 namespace sandbox: enabled 2020/12/06 10:41:16 Android sandbox: /sys/fs/selinux/policy does not exist 2020/12/06 10:41:16 fault injection: enabled 2020/12/06 10:41:16 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/12/06 10:41:16 net packet injection: enabled 2020/12/06 10:41:16 net device setup: enabled 2020/12/06 10:41:16 concurrency sanitizer: enabled 2020/12/06 10:41:16 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/12/06 10:41:16 USB emulation: enabled 2020/12/06 10:41:16 hci packet injection: enabled 2020/12/06 10:41:16 wifi device emulation: enabled 2020/12/06 10:41:20 suppressing KCSAN reports in functions: 'dd_has_work' 'tick_nohz_next_event' 'do_sys_poll' '__writeback_single_inode' 'alloc_pid' 'wbt_done' '__io_cqring_fill_event' 'pcpu_alloc' 'kauditd_thread' 'shmem_unlink' 'n_tty_receive_char_inline' '_prb_read_valid' 'ext4_writepages' 'ext4_mark_iloc_dirty' '__ext4_update_other_inode_time' 'bpf_lru_pop_free' 'audit_log_start' '__filemap_fdatawrite_range' 'ondemand_readahead' 'complete_signal' 'blk_mq_rq_ctx_init' 'do_select' '__delete_from_page_cache' 'exit_mm' 'expire_timers' 'generic_write_end' 'ext4_mb_good_group' 'do_signal_stop' 'n_tty_receive_buf_common' 'isolate_migratepages_block' 'ext4_mb_regular_allocator' 'snd_rawmidi_poll' '__ext4_new_inode' 'inet_send_prepare' '__xa_clear_mark' 'wg_packet_decrypt_worker' 'fsnotify' 'shmem_mknod' 'blk_mq_dispatch_rq_list' 'blk_mq_sched_dispatch_requests' 'ext4_free_inode' 'ext4_free_inodes_count' 'futex_wait_queue_me' 'do_nanosleep' '__add_to_page_cache_locked' 'generic_file_buffered_read' 'ext4_handle_inode_extension' 'xas_clear_mark' 'find_get_pages_range_tag' 10:42:41 executing program 0: syz_open_dev$ttys(0xc, 0x2, 0x1) r0 = syz_open_dev$ptys(0xc, 0x3, 0x1) ioctl$TIOCGICOUNT(r0, 0x5427, 0x0) [ 123.479904][ T8446] ================================================================== [ 123.488019][ T8446] BUG: KCSAN: data-race in atime_needs_update / propagate_one [ 123.495564][ T8446] [ 123.497925][ T8446] read-write to 0xffff888140eaf4b0 of 4 bytes by task 8465 on cpu 1: [ 123.506004][ T8446] propagate_one+0x323/0x3f0 [ 123.510566][ T8446] propagate_mnt+0x2f8/0x650 [ 123.515141][ T8446] attach_recursive_mnt+0x4fb/0x1180 [ 123.520406][ T8446] path_mount+0x1aed/0x1c10 [ 123.524881][ T8446] __se_sys_mount+0x23d/0x2e0 [ 123.529529][ T8446] __x64_sys_mount+0x63/0x70 [ 123.534091][ T8446] do_syscall_64+0x39/0x80 [ 123.538499][ T8446] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 123.544359][ T8446] [ 123.546663][ T8446] read to 0xffff888140eaf4b0 of 4 bytes by task 8446 on cpu 0: [ 123.554177][ T8446] atime_needs_update+0x1b7/0x370 [ 123.559172][ T8446] touch_atime+0x55/0x2d0 [ 123.563493][ T8446] generic_file_buffered_read+0x1b30/0x23a0 [ 123.569356][ T8446] generic_file_read_iter+0x80/0x3d0 [ 123.574613][ T8446] ext4_file_read_iter+0x2d0/0x420 [ 123.579696][ T8446] __kernel_read+0x307/0x560 [ 123.584276][ T8446] integrity_kernel_read+0x4c/0x70 [ 123.589362][ T8446] ima_calc_file_hash+0x9c7/0x1430 [ 123.594445][ T8446] ima_collect_measurement+0x168/0x300 [ 123.599893][ T8446] process_measurement+0x9f1/0x1050 [ 123.605063][ T8446] ima_file_check+0x72/0xa0 [ 123.609536][ T8446] path_openat+0x1887/0x20a0 [ 123.614099][ T8446] do_filp_open+0xbd/0x1d0 [ 123.618503][ T8446] do_sys_openat2+0xa3/0x240 [ 123.623065][ T8446] __x64_sys_openat+0xef/0x110 [ 123.627799][ T8446] do_syscall_64+0x39/0x80 [ 123.632200][ T8446] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 123.638074][ T8446] [ 123.640383][ T8446] Reported by Kernel Concurrency Sanitizer on: [ 123.646511][ T8446] CPU: 0 PID: 8446 Comm: syz-fuzzer Not tainted 5.10.0-rc6-syzkaller #0 [ 123.654804][ T8446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 123.664853][ T8446] ================================================================== [ 123.672913][ T8446] Kernel panic - not syncing: panic_on_warn set ... [ 123.679477][ T8446] CPU: 0 PID: 8446 Comm: syz-fuzzer Not tainted 5.10.0-rc6-syzkaller #0 [ 123.687785][ T8446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 123.697811][ T8446] Call Trace: [ 123.701084][ T8446] dump_stack+0x116/0x15d [ 123.705412][ T8446] panic+0x1e7/0x5fa [ 123.709282][ T8446] ? vprintk_emit+0x2f2/0x370 [ 123.713932][ T8446] kcsan_report+0x67b/0x680 [ 123.718410][ T8446] ? kcsan_setup_watchpoint+0x46a/0x4d0 [ 123.723926][ T8446] ? atime_needs_update+0x1b7/0x370 [ 123.729121][ T8446] ? touch_atime+0x55/0x2d0 [ 123.733598][ T8446] ? generic_file_buffered_read+0x1b30/0x23a0 [ 123.739650][ T8446] ? generic_file_read_iter+0x80/0x3d0 [ 123.745082][ T8446] ? ext4_file_read_iter+0x2d0/0x420 [ 123.750336][ T8446] ? __kernel_read+0x307/0x560 [ 123.755071][ T8446] ? integrity_kernel_read+0x4c/0x70 [ 123.760328][ T8446] ? ima_calc_file_hash+0x9c7/0x1430 [ 123.765584][ T8446] ? ima_collect_measurement+0x168/0x300 [ 123.771208][ T8446] ? process_measurement+0x9f1/0x1050 [ 123.776551][ T8446] ? ima_file_check+0x72/0xa0 [ 123.781218][ T8446] ? path_openat+0x1887/0x20a0 [ 123.785951][ T8446] ? do_filp_open+0xbd/0x1d0 [ 123.790514][ T8446] ? do_sys_openat2+0xa3/0x240 [ 123.795249][ T8446] ? __x64_sys_openat+0xef/0x110 [ 123.800163][ T8446] ? do_syscall_64+0x39/0x80 [ 123.804743][ T8446] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 123.810787][ T8446] ? page_cache_ra_unbounded+0x484/0x4c0 [ 123.816393][ T8446] kcsan_setup_watchpoint+0x46a/0x4d0 [ 123.821738][ T8446] atime_needs_update+0x1b7/0x370 [ 123.826733][ T8446] touch_atime+0x55/0x2d0 [ 123.831031][ T8446] ? mark_page_accessed+0x529/0x5e0 [ 123.836201][ T8446] generic_file_buffered_read+0x1b30/0x23a0 [ 123.842065][ T8446] generic_file_read_iter+0x80/0x3d0 [ 123.847324][ T8446] ext4_file_read_iter+0x2d0/0x420 [ 123.852407][ T8446] __kernel_read+0x307/0x560 [ 123.856970][ T8446] integrity_kernel_read+0x4c/0x70 [ 123.862054][ T8446] ima_calc_file_hash+0x9c7/0x1430 [ 123.867162][ T8446] ? __should_failslab+0x81/0x90 [ 123.873058][ T8446] ? integrity_audit_message+0x7b/0x280 [ 123.878575][ T8446] ? should_failslab+0x5/0x20 [ 123.883227][ T8446] ? slab_pre_alloc_hook+0x20/0xb0 [ 123.888311][ T8446] ? widen_string+0x3a/0x280 [ 123.892872][ T8446] ? format_decode+0x1d3/0x840 [ 123.897607][ T8446] ? string+0x1f9/0x210 [ 123.901752][ T8446] ? __rcu_read_unlock+0x3a/0x220 [ 123.906774][ T8446] ? ext4_xattr_ibody_get+0x68/0x630 [ 123.912046][ T8446] ? aa_get_newest_label+0x74/0x250 [ 123.917219][ T8446] ? apparmor_capable+0xfe/0x160 [ 123.922130][ T8446] ? __rcu_read_unlock+0x3a/0x220 [ 123.927127][ T8446] ? ext4_xattr_get+0x27d/0x580 [ 123.932008][ T8446] ? ima_match_policy+0xa54/0xa90 [ 123.937007][ T8446] ima_collect_measurement+0x168/0x300 [ 123.942443][ T8446] process_measurement+0x9f1/0x1050 [ 123.947623][ T8446] ? dquot_file_open+0x68/0x80 [ 123.952358][ T8446] ? ext4_file_open+0x186/0x4f0 [ 123.957181][ T8446] ? aa_get_newest_label+0x74/0x250 [ 123.962357][ T8446] ? __rcu_read_unlock+0x51/0x220 [ 123.967353][ T8446] ? fsnotify_perm+0x296/0x2d0 [ 123.972088][ T8446] ? aa_get_task_label+0x72/0xc0 [ 123.977002][ T8446] ? apparmor_task_getsecid+0x81/0xa0 [ 123.982392][ T8446] ima_file_check+0x72/0xa0 [ 123.986885][ T8446] path_openat+0x1887/0x20a0 [ 123.991463][ T8446] ? __ext4_mark_inode_dirty+0x46a/0x610 [ 123.997069][ T8446] do_filp_open+0xbd/0x1d0 [ 124.001459][ T8446] ? _raw_spin_unlock+0x22/0x40 [ 124.006281][ T8446] ? __alloc_fd+0x33c/0x390 [ 124.010759][ T8446] do_sys_openat2+0xa3/0x240 [ 124.015324][ T8446] ? mem_cgroup_handle_over_high+0x34/0x4d0 [ 124.021191][ T8446] __x64_sys_openat+0xef/0x110 [ 124.025928][ T8446] do_syscall_64+0x39/0x80 [ 124.030332][ T8446] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 124.036194][ T8446] RIP: 0033:0x4b3d4a [ 124.040060][ T8446] Code: e8 5b a1 f8 ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 4c 8b 54 24 28 4c 8b 44 24 30 4c 8b 4c 24 38 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 40 ff ff ff ff 48 c7 44 24 48 [ 124.059635][ T8446] RSP: 002b:000000c025fcb808 EFLAGS: 00000216 ORIG_RAX: 0000000000000101 [ 124.068018][ T8446] RAX: ffffffffffffffda RBX: 000000c00002e800 RCX: 00000000004b3d4a [ 124.075977][ T8446] RDX: 0000000000080002 RSI: 000000c021f38480 RDI: ffffffffffffff9c [ 124.083943][ T8446] RBP: 000000c025fcb880 R08: 0000000000000000 R09: 0000000000000000 [ 124.092007][ T8446] R10: 00000000000001a4 R11: 0000000000000216 R12: ffffffffffffffff [ 124.099977][ T8446] R13: 0000000000000025 R14: 0000000000000024 R15: 0000000000000100 [ 124.108859][ T8446] Kernel Offset: disabled [ 124.113212][ T8446] Rebooting in 86400 seconds..