Warning: Permanently added '10.128.0.171' (ECDSA) to the list of known hosts. 2020/12/18 15:41:50 fuzzer started 2020/12/18 15:41:51 dialing manager at 10.128.0.105:34407 2020/12/18 15:41:51 syscalls: 3466 2020/12/18 15:41:51 code coverage: enabled 2020/12/18 15:41:51 comparison tracing: enabled 2020/12/18 15:41:51 extra coverage: enabled 2020/12/18 15:41:51 setuid sandbox: enabled 2020/12/18 15:41:51 namespace sandbox: enabled 2020/12/18 15:41:51 Android sandbox: /sys/fs/selinux/policy does not exist 2020/12/18 15:41:51 fault injection: enabled 2020/12/18 15:41:51 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/12/18 15:41:51 net packet injection: enabled 2020/12/18 15:41:51 net device setup: enabled 2020/12/18 15:41:51 concurrency sanitizer: enabled 2020/12/18 15:41:51 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/12/18 15:41:51 USB emulation: enabled 2020/12/18 15:41:51 hci packet injection: enabled 2020/12/18 15:41:51 wifi device emulation: enabled 2020/12/18 15:41:54 suppressing KCSAN reports in functions: '__delete_from_page_cache' 'isolate_migratepages_block' 'kauditd_thread' 'fasync_remove_entry' '__xa_clear_mark' 'ext4_free_inodes_count' 'tick_nohz_next_event' '__ext4_unlink' 'audit_log_start' 'ext4_sync_file' 'blk_mq_dispatch_rq_list' 'ext4_handle_inode_extension' 'ext4_mark_iloc_dirty' 'ext4_writepages' 'generic_write_end' '__io_cqring_fill_event' 'find_get_pages_range_tag' '__filemap_fdatawrite_range' '_prb_read_valid' 'xas_clear_mark' 'dd_has_work' 'wbt_done' 'futex_wait_queue_me' 'filemap_map_pages' 'ondemand_readahead' 'alloc_pid' 'do_select' 'pcpu_alloc' 'ext4_mb_good_group' 'do_nanosleep' 'expire_timers' 'n_tty_receive_buf_common' 'ext4_mb_regular_allocator' 'do_signal_stop' 'iptunnel_xmit' 'tick_sched_timer' 'blk_mq_rq_ctx_init' '__blk_mq_sched_dispatch_requests' '__mod_timer' '__add_to_page_cache_locked' 'xas_find_marked' '__ext4_new_inode' 'ext4_free_inode' '__xa_set_mark' '__mark_inode_dirty' '__blkdev_get' 'blk_mq_sched_dispatch_requests' 15:43:34 executing program 0: r0 = syz_mount_image$vfat(&(0x7f0000000000)='vfat\x00', &(0x7f0000000100)='./file0\x00', 0x0, 0x4, &(0x7f0000000200)=[{&(0x7f0000010000)="601c6d6b646f736661e36600080820000400008000f8000020004000030000000000000001", 0x25}, {&(0x7f0000010100)='RRaA', 0x4, 0x800}, {&(0x7f0000010200)='\x00\x00\x00\x00rrAa', 0x8, 0x9e0}, {&(0x7f0000010400)="f8ffff0fffffff0fffffff0f", 0xc, 0x10000}], 0x0, &(0x7f0000000040)=ANY=[]) fstatfs(r0, &(0x7f0000000340)=""/244) syzkaller login: [ 133.735001][ T8446] ================================================================== [ 133.743088][ T8446] BUG: KCSAN: data-race in atime_needs_update / propagate_one [ 133.750523][ T8446] [ 133.752834][ T8446] read-write to 0xffff888140d709b0 of 4 bytes by task 8466 on cpu 1: [ 133.760881][ T8446] propagate_one+0x323/0x3f0 [ 133.765444][ T8446] propagate_mnt+0x2f8/0x650 [ 133.770004][ T8446] attach_recursive_mnt+0x4fb/0x1180 [ 133.775267][ T8446] path_mount+0x1aed/0x1c10 [ 133.779748][ T8446] __se_sys_mount+0x23d/0x2e0 [ 133.784439][ T8446] __x64_sys_mount+0x63/0x70 [ 133.789006][ T8446] do_syscall_64+0x39/0x80 [ 133.793399][ T8446] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 133.799285][ T8446] [ 133.801583][ T8446] read to 0xffff888140d709b0 of 4 bytes by task 8446 on cpu 0: [ 133.809106][ T8446] atime_needs_update+0x1b7/0x370 [ 133.814112][ T8446] touch_atime+0x55/0x2d0 [ 133.818424][ T8446] generic_file_buffered_read+0x905/0x980 [ 133.824119][ T8446] generic_file_read_iter+0x80/0x3d0 [ 133.829378][ T8446] ext4_file_read_iter+0x2d0/0x420 [ 133.834463][ T8446] __kernel_read+0x307/0x560 [ 133.839027][ T8446] integrity_kernel_read+0x4c/0x70 [ 133.844111][ T8446] ima_calc_file_hash+0x956/0x1390 [ 133.849195][ T8446] ima_collect_measurement+0x168/0x300 [ 133.854627][ T8446] process_measurement+0x9f1/0x1050 [ 133.859810][ T8446] ima_file_check+0x72/0xa0 [ 133.864291][ T8446] path_openat+0x1887/0x20a0 [ 133.868866][ T8446] do_filp_open+0xbd/0x1d0 [ 133.873257][ T8446] do_sys_openat2+0xa3/0x240 [ 133.877818][ T8446] __x64_sys_openat+0xef/0x110 [ 133.882568][ T8446] do_syscall_64+0x39/0x80 [ 133.886957][ T8446] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 133.892826][ T8446] [ 133.895122][ T8446] Reported by Kernel Concurrency Sanitizer on: [ 133.901253][ T8446] CPU: 0 PID: 8446 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0 [ 133.909201][ T8446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 133.919229][ T8446] ================================================================== [ 133.927258][ T8446] Kernel panic - not syncing: panic_on_warn set ... [ 133.933897][ T8446] CPU: 0 PID: 8446 Comm: syz-fuzzer Not tainted 5.10.0-syzkaller #0 [ 133.941846][ T8446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 133.951875][ T8446] Call Trace: [ 133.955130][ T8446] dump_stack+0x116/0x15d [ 133.959431][ T8446] panic+0x1e7/0x5fa [ 133.963303][ T8446] ? vprintk_emit+0x2e2/0x360 [ 133.967953][ T8446] kcsan_report+0x67b/0x680 [ 133.972449][ T8446] ? kcsan_setup_watchpoint+0x47b/0x4e0 [ 133.977971][ T8446] ? atime_needs_update+0x1b7/0x370 [ 133.983147][ T8446] ? touch_atime+0x55/0x2d0 [ 133.987626][ T8446] ? generic_file_buffered_read+0x905/0x980 [ 133.993495][ T8446] ? generic_file_read_iter+0x80/0x3d0 [ 133.998930][ T8446] ? ext4_file_read_iter+0x2d0/0x420 [ 134.004186][ T8446] ? __kernel_read+0x307/0x560 [ 134.008929][ T8446] ? integrity_kernel_read+0x4c/0x70 [ 134.014187][ T8446] ? ima_calc_file_hash+0x956/0x1390 [ 134.019458][ T8446] ? ima_collect_measurement+0x168/0x300 [ 134.025066][ T8446] ? process_measurement+0x9f1/0x1050 [ 134.030411][ T8446] ? ima_file_check+0x72/0xa0 [ 134.035061][ T8446] ? path_openat+0x1887/0x20a0 [ 134.039799][ T8446] ? do_filp_open+0xbd/0x1d0 [ 134.044362][ T8446] ? do_sys_openat2+0xa3/0x240 [ 134.049113][ T8446] ? __x64_sys_openat+0xef/0x110 [ 134.054025][ T8446] ? do_syscall_64+0x39/0x80 [ 134.058588][ T8446] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 134.064639][ T8446] kcsan_setup_watchpoint+0x47b/0x4e0 [ 134.069989][ T8446] atime_needs_update+0x1b7/0x370 [ 134.074991][ T8446] touch_atime+0x55/0x2d0 [ 134.079297][ T8446] generic_file_buffered_read+0x905/0x980 [ 134.084994][ T8446] generic_file_read_iter+0x80/0x3d0 [ 134.090256][ T8446] ext4_file_read_iter+0x2d0/0x420 [ 134.095343][ T8446] __kernel_read+0x307/0x560 [ 134.099911][ T8446] integrity_kernel_read+0x4c/0x70 [ 134.104996][ T8446] ima_calc_file_hash+0x956/0x1390 [ 134.110081][ T8446] ? __switch_to+0x14e/0x4c0 [ 134.114662][ T8446] ? __list_del_entry_valid+0x54/0xc0 [ 134.120015][ T8446] ? __list_add_valid+0x28/0x90 [ 134.124918][ T8446] ? _raw_spin_unlock_irq+0x22/0x40 [ 134.130097][ T8446] ? finish_task_switch+0x90/0x3a0 [ 134.135201][ T8446] ? __schedule+0x3c1/0x580 [ 134.139702][ T8446] ? widen_string+0x3a/0x280 [ 134.144279][ T8446] ? format_decode+0x1d3/0x840 [ 134.149022][ T8446] ? string+0x1f9/0x210 [ 134.153205][ T8446] ? __down_read_common+0x14e/0x510 [ 134.158387][ T8446] ? ext4_xattr_ibody_get+0x68/0x630 [ 134.163671][ T8446] ? aa_get_newest_label+0x74/0x250 [ 134.168850][ T8446] ? apparmor_capable+0xfe/0x160 [ 134.173762][ T8446] ? ext4_xattr_get+0x27d/0x580 [ 134.178589][ T8446] ? ima_match_policy+0xa80/0xab0 [ 134.183588][ T8446] ima_collect_measurement+0x168/0x300 [ 134.189023][ T8446] process_measurement+0x9f1/0x1050 [ 134.194197][ T8446] ? dquot_file_open+0x68/0x80 [ 134.198944][ T8446] ? ext4_file_open+0x186/0x4f0 [ 134.203771][ T8446] ? aa_get_newest_label+0x74/0x250 [ 134.208943][ T8446] ? __rcu_read_unlock+0x51/0x250 [ 134.213940][ T8446] ? fsnotify_perm+0x296/0x2d0 [ 134.218682][ T8446] ? aa_get_task_label+0x72/0xc0 [ 134.223606][ T8446] ? apparmor_task_getsecid+0x81/0xa0 [ 134.228952][ T8446] ima_file_check+0x72/0xa0 [ 134.233441][ T8446] path_openat+0x1887/0x20a0 [ 134.238021][ T8446] do_filp_open+0xbd/0x1d0 [ 134.242415][ T8446] ? _raw_spin_unlock+0x22/0x40 [ 134.247254][ T8446] ? alloc_fd+0x35d/0x3b0 [ 134.251558][ T8446] do_sys_openat2+0xa3/0x240 [ 134.256124][ T8446] ? mem_cgroup_handle_over_high+0x34/0x4d0 [ 134.262015][ T8446] __x64_sys_openat+0xef/0x110 [ 134.266753][ T8446] do_syscall_64+0x39/0x80 [ 134.271144][ T8446] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 134.277013][ T8446] RIP: 0033:0x4b3d4a [ 134.280882][ 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 [ 134.300475][ T8446] RSP: 002b:000000c02fec3808 EFLAGS: 00000216 ORIG_RAX: 0000000000000101 [ 134.308875][ T8446] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b3d4a [ 134.316822][ T8446] RDX: 0000000000080002 RSI: 000000c02a9da2e0 RDI: ffffffffffffff9c [ 134.324774][ T8446] RBP: 000000c02fec3880 R08: 0000000000000000 R09: 0000000000000000 [ 134.332732][ T8446] R10: 00000000000001a4 R11: 0000000000000216 R12: ffffffffffffffff [ 134.340679][ T8446] R13: 0000000000000018 R14: 0000000000000017 R15: 0000000000000100 [ 134.349380][ T8446] Kernel Offset: disabled [ 134.353686][ T8446] Rebooting in 86400 seconds..