Warning: Permanently added '10.128.1.36' (ECDSA) to the list of known hosts. 2020/12/25 01:52:42 fuzzer started 2020/12/25 01:52:42 dialing manager at 10.128.0.105:43825 2020/12/25 01:52:49 syscalls: 3466 2020/12/25 01:52:49 code coverage: enabled 2020/12/25 01:52:49 comparison tracing: enabled 2020/12/25 01:52:49 extra coverage: enabled 2020/12/25 01:52:49 setuid sandbox: enabled 2020/12/25 01:52:49 namespace sandbox: enabled 2020/12/25 01:52:49 Android sandbox: /sys/fs/selinux/policy does not exist 2020/12/25 01:52:49 fault injection: enabled 2020/12/25 01:52:49 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/12/25 01:52:49 net packet injection: enabled 2020/12/25 01:52:49 net device setup: enabled 2020/12/25 01:52:49 concurrency sanitizer: enabled 2020/12/25 01:52:49 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/12/25 01:52:49 USB emulation: enabled 2020/12/25 01:52:49 hci packet injection: enabled 2020/12/25 01:52:49 wifi device emulation: enabled 2020/12/25 01:52:53 suppressing KCSAN reports in functions: '__writeback_single_inode' '__add_to_page_cache_locked' 'blk_mq_dispatch_rq_list' 'pcpu_alloc' 'n_tty_receive_buf_common' '__delete_from_page_cache' 'generic_write_end' '__mod_timer' 'wbt_done' 'xas_find_marked' 'alloc_pid' '__filemap_fdatawrite_range' 'kauditd_thread' 'ext4_es_lookup_extent' '__ext4_update_other_inode_time' 'audit_log_start' 'bpf_lru_pop_free' 'find_get_pages_range_tag' 'futex_wait_queue_me' 'do_select' 'xas_clear_mark' 'expire_timers' 'tick_nohz_next_event' '__blk_mq_sched_dispatch_requests' 'ext4_mark_iloc_dirty' 'complete_signal' 'dd_has_work' '__xa_clear_mark' 'blk_mq_rq_ctx_init' 'blk_mq_request_bypass_insert' 'wg_packet_decrypt_worker' 'exit_mm' 'ext4_mb_good_group' 'ext4_writepages' 'blk_mq_sched_dispatch_requests' '_prb_read_valid' '__mark_inode_dirty' 'wbt_issue' 'do_nanosleep' 'ext4_free_inodes_count' 'sit_tunnel_xmit' 'ext4_free_inode' '__ext4_new_inode' 'do_signal_stop' '__io_cqring_fill_event' 'generic_file_buffered_read' 01:54:03 executing program 0: r0 = openat$fb1(0xffffffffffffff9c, &(0x7f0000000000)='/dev/fb1\x00', 0x0, 0x0) ioctl$FBIOPAN_DISPLAY(r0, 0x4606, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x18, 0x0, {}, {}, {}, {}, 0x0, 0x0, 0x59}) syzkaller login: [ 111.820265][ T8459] ================================================================== [ 111.828403][ T8459] BUG: KCSAN: data-race in atime_needs_update / propagate_one [ 111.835853][ T8459] [ 111.838152][ T8459] read-write to 0xffff888140cd59b0 of 4 bytes by task 8469 on cpu 0: [ 111.846183][ T8459] propagate_one+0x323/0x3f0 [ 111.850748][ T8459] propagate_mnt+0x2f8/0x650 [ 111.855309][ T8459] attach_recursive_mnt+0x4fb/0x1180 [ 111.860568][ T8459] path_mount+0x1aed/0x1c10 [ 111.865044][ T8459] __se_sys_mount+0x23d/0x2e0 [ 111.869698][ T8459] __x64_sys_mount+0x63/0x70 [ 111.874278][ T8459] do_syscall_64+0x39/0x80 [ 111.878670][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 111.884549][ T8459] [ 111.886862][ T8459] read to 0xffff888140cd59b0 of 4 bytes by task 8459 on cpu 1: [ 111.894388][ T8459] atime_needs_update+0x1b7/0x370 [ 111.899388][ T8459] touch_atime+0x55/0x2d0 [ 111.903689][ T8459] generic_file_buffered_read+0x92b/0x9a0 [ 111.909381][ T8459] generic_file_read_iter+0x80/0x3d0 [ 111.914989][ T8459] ext4_file_read_iter+0x2d0/0x420 [ 111.920076][ T8459] __kernel_read+0x307/0x560 [ 111.924650][ T8459] integrity_kernel_read+0x4c/0x70 [ 111.929738][ T8459] ima_calc_file_hash+0x956/0x1390 [ 111.934827][ T8459] ima_collect_measurement+0x168/0x300 [ 111.940267][ T8459] process_measurement+0x9f1/0x1050 [ 111.945445][ T8459] ima_file_check+0x72/0xa0 [ 111.949922][ T8459] path_openat+0x1887/0x20a0 [ 111.954484][ T8459] do_filp_open+0xbd/0x1d0 [ 111.958873][ T8459] do_sys_openat2+0xa3/0x240 [ 111.963447][ T8459] __x64_sys_openat+0xef/0x110 [ 111.968187][ T8459] do_syscall_64+0x39/0x80 [ 111.972578][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 111.978475][ T8459] [ 111.980774][ T8459] Reported by Kernel Concurrency Sanitizer on: [ 111.986890][ T8459] CPU: 1 PID: 8459 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0 [ 111.994852][ T8459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 112.004887][ T8459] ================================================================== [ 112.012922][ T8459] Kernel panic - not syncing: panic_on_warn set ... [ 112.019477][ T8459] CPU: 1 PID: 8459 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0 [ 112.027427][ T8459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 112.037456][ T8459] Call Trace: [ 112.040715][ T8459] dump_stack+0x116/0x15d [ 112.045023][ T8459] panic+0x1e7/0x5fa [ 112.048892][ T8459] ? vprintk_emit+0x2e2/0x360 [ 112.053555][ T8459] kcsan_report+0x67b/0x680 [ 112.058045][ T8459] ? kcsan_setup_watchpoint+0x47b/0x4e0 [ 112.063649][ T8459] ? atime_needs_update+0x1b7/0x370 [ 112.068823][ T8459] ? touch_atime+0x55/0x2d0 [ 112.073304][ T8459] ? generic_file_buffered_read+0x92b/0x9a0 [ 112.080398][ T8459] ? generic_file_read_iter+0x80/0x3d0 [ 112.085830][ T8459] ? ext4_file_read_iter+0x2d0/0x420 [ 112.091102][ T8459] ? __kernel_read+0x307/0x560 [ 112.095841][ T8459] ? integrity_kernel_read+0x4c/0x70 [ 112.101100][ T8459] ? ima_calc_file_hash+0x956/0x1390 [ 112.106794][ T8459] ? ima_collect_measurement+0x168/0x300 [ 112.112400][ T8459] ? process_measurement+0x9f1/0x1050 [ 112.117746][ T8459] ? ima_file_check+0x72/0xa0 [ 112.122404][ T8459] ? path_openat+0x1887/0x20a0 [ 112.127148][ T8459] ? do_filp_open+0xbd/0x1d0 [ 112.131720][ T8459] ? do_sys_openat2+0xa3/0x240 [ 112.136456][ T8459] ? __x64_sys_openat+0xef/0x110 [ 112.141367][ T8459] ? do_syscall_64+0x39/0x80 [ 112.145931][ T8459] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 112.151987][ T8459] kcsan_setup_watchpoint+0x47b/0x4e0 [ 112.157348][ T8459] atime_needs_update+0x1b7/0x370 [ 112.162348][ T8459] touch_atime+0x55/0x2d0 [ 112.167792][ T8459] generic_file_buffered_read+0x92b/0x9a0 [ 112.173487][ T8459] generic_file_read_iter+0x80/0x3d0 [ 112.178745][ T8459] ext4_file_read_iter+0x2d0/0x420 [ 112.183849][ T8459] __kernel_read+0x307/0x560 [ 112.188417][ T8459] integrity_kernel_read+0x4c/0x70 [ 112.193504][ T8459] ima_calc_file_hash+0x956/0x1390 [ 112.198604][ T8459] ? integrity_audit_message+0x7b/0x280 [ 112.204133][ T8459] ? widen_string+0x3a/0x280 [ 112.208714][ T8459] ? format_decode+0x1d3/0x840 [ 112.213452][ T8459] ? string+0x1f9/0x210 [ 112.217581][ T8459] ? __down_read_common+0x14e/0x510 [ 112.222763][ T8459] ? ext4_xattr_ibody_get+0x68/0x630 [ 112.228045][ T8459] ? aa_get_newest_label+0x74/0x250 [ 112.233223][ T8459] ? apparmor_capable+0xfe/0x160 [ 112.238162][ T8459] ? ext4_xattr_get+0x27d/0x580 [ 112.242989][ T8459] ? ima_match_policy+0xa80/0xab0 [ 112.248115][ T8459] ima_collect_measurement+0x168/0x300 [ 112.253640][ T8459] process_measurement+0x9f1/0x1050 [ 112.258829][ T8459] ? dquot_file_open+0x68/0x80 [ 112.263592][ T8459] ? ext4_file_open+0x186/0x4f0 [ 112.268419][ T8459] ? aa_get_newest_label+0x74/0x250 [ 112.273612][ T8459] ? __rcu_read_unlock+0x51/0x250 [ 112.278620][ T8459] ? fsnotify_perm+0x296/0x2d0 [ 112.283420][ T8459] ? aa_get_task_label+0x72/0xc0 [ 112.288335][ T8459] ? apparmor_task_getsecid+0x81/0xa0 [ 112.293684][ T8459] ima_file_check+0x72/0xa0 [ 112.298175][ T8459] path_openat+0x1887/0x20a0 [ 112.302753][ T8459] do_filp_open+0xbd/0x1d0 [ 112.307165][ T8459] ? _raw_spin_unlock+0x22/0x40 [ 112.311993][ T8459] ? alloc_fd+0x35d/0x3b0 [ 112.316306][ T8459] do_sys_openat2+0xa3/0x240 [ 112.320874][ T8459] ? mem_cgroup_handle_over_high+0x34/0x4d0 [ 112.326744][ T8459] __x64_sys_openat+0xef/0x110 [ 112.331580][ T8459] do_syscall_64+0x39/0x80 [ 112.335973][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 112.341843][ T8459] RIP: 0033:0x4b3d4a [ 112.345716][ T8459] 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 [ 112.365309][ T8459] RSP: 002b:000000c0004c5808 EFLAGS: 00000216 ORIG_RAX: 0000000000000101 [ 112.373714][ T8459] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b3d4a [ 112.381667][ T8459] RDX: 0000000000080002 RSI: 000000c01fe22380 RDI: ffffffffffffff9c [ 112.389624][ T8459] RBP: 000000c0004c5880 R08: 0000000000000000 R09: 0000000000000000 [ 112.397573][ T8459] R10: 00000000000001a4 R11: 0000000000000216 R12: ffffffffffffffff [ 112.405521][ T8459] R13: 000000000000001d R14: 000000000000001c R15: 0000000000000100 [ 112.413975][ T8459] Kernel Offset: disabled [ 112.418282][ T8459] Rebooting in 86400 seconds..