Warning: Permanently added '10.128.0.145' (ECDSA) to the list of known hosts. 2020/11/07 01:30:40 fuzzer started 2020/11/07 01:30:41 dialing manager at 10.128.0.105:42903 2020/11/07 01:30:41 syscalls: 3448 2020/11/07 01:30:41 code coverage: enabled 2020/11/07 01:30:41 comparison tracing: enabled 2020/11/07 01:30:41 extra coverage: enabled 2020/11/07 01:30:41 setuid sandbox: enabled 2020/11/07 01:30:41 namespace sandbox: enabled 2020/11/07 01:30:41 Android sandbox: /sys/fs/selinux/policy does not exist 2020/11/07 01:30:41 fault injection: enabled 2020/11/07 01:30:41 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/11/07 01:30:41 net packet injection: enabled 2020/11/07 01:30:41 net device setup: enabled 2020/11/07 01:30:41 concurrency sanitizer: enabled 2020/11/07 01:30:41 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/11/07 01:30:41 USB emulation: enabled 2020/11/07 01:30:41 hci packet injection: enabled 2020/11/07 01:30:41 wifi device emulation: enabled 2020/11/07 01:30:45 suppressing KCSAN reports in functions: 'ext4_mb_find_by_goal' 'dd_has_work' 'do_signal_stop' '__add_to_page_cache_locked' '__delayacct_blkio_end' 'usbdev_ioctl' 'ext4_writepages' '__xa_set_mark' 'ext4_ext_handle_unwritten_extents' 'ext4_mark_iloc_dirty' 'generic_write_end' 'do_sys_poll' 'ext4_mb_good_group' '__filemap_fdatawrite_range' 'blk_mq_rq_ctx_init' 'ext4_free_inode' '__ext4_new_inode' 'futex_wait_queue_me' 'shmem_getpage_gfp' 'wbt_issue' '_prb_read_valid' 'blk_mq_request_bypass_insert' 'shmem_unlink' 'vfs_readlink' 'do_epoll_ctl' '__io_cqring_fill_event' 'n_tty_receive_buf_common' 'kauditd_thread' 'ext4_mb_regular_allocator' '__fsnotify_parent' '__delete_from_page_cache' 'snd_rawmidi_poll' '__mod_timer' 'expire_timers' 'ext4_setattr' 'wbt_done' 'do_select' 'do_nanosleep' 'alloc_pid' 'dput' 'ext4_ext_insert_extent' '__xa_clear_mark' 'blk_mq_sched_dispatch_requests' 'blk_mq_dispatch_rq_list' 'pcpu_alloc' 'ext4_free_inodes_count' 'find_get_pages_range_tag' '__mark_inode_dirty' 01:32:14 executing program 0: socket(0x2b, 0x1, 0x0) r0 = syz_io_uring_setup(0x87, &(0x7f0000000080), &(0x7f0000ee7000/0x2000)=nil, &(0x7f00006d4000/0x4000)=nil, &(0x7f0000000000)=0x0, &(0x7f0000000040)=0x0) syz_io_uring_submit(r1, r2, &(0x7f0000000200)=@IORING_OP_POLL_ADD={0x6, 0x0, 0x0, @fd_index=0x3}, 0x0) io_uring_enter(r0, 0x450c, 0x0, 0x0, 0x0, 0x0) syzkaller login: [ 123.688961][ T8465] ================================================================== [ 123.697124][ T8465] BUG: KCSAN: data-race in atime_needs_update / propagate_one [ 123.704558][ T8465] [ 123.706863][ T8465] read-write to 0xffff888100ce3bf0 of 4 bytes by task 8486 on cpu 0: [ 123.714943][ T8465] propagate_one+0x323/0x3f0 [ 123.719503][ T8465] propagate_mnt+0x2f8/0x650 [ 123.724064][ T8465] attach_recursive_mnt+0x4fb/0x1180 [ 123.729319][ T8465] path_mount+0x1aed/0x1c10 [ 123.733825][ T8465] __se_sys_mount+0x23d/0x2e0 [ 123.738474][ T8465] __x64_sys_mount+0x63/0x70 [ 123.743103][ T8465] do_syscall_64+0x39/0x80 [ 123.747496][ T8465] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 123.753371][ T8465] [ 123.755673][ T8465] read to 0xffff888100ce3bf0 of 4 bytes by task 8465 on cpu 1: [ 123.763185][ T8465] atime_needs_update+0x133/0x370 [ 123.768199][ T8465] touch_atime+0x53/0x1a0 [ 123.772511][ T8465] generic_file_buffered_read+0x1a1c/0x2110 [ 123.778371][ T8465] generic_file_read_iter+0x80/0x3d0 [ 123.783667][ T8465] ext4_file_read_iter+0x2d0/0x420 [ 123.788765][ T8465] __kernel_read+0x307/0x560 [ 123.793333][ T8465] integrity_kernel_read+0x4c/0x70 [ 123.798416][ T8465] ima_calc_file_hash+0x9c7/0x1430 [ 123.803497][ T8465] ima_collect_measurement+0x168/0x300 [ 123.808936][ T8465] process_measurement+0x9f1/0x1050 [ 123.814118][ T8465] ima_file_check+0x72/0xa0 [ 123.818609][ T8465] path_openat+0x1887/0x20a0 [ 123.823208][ T8465] do_filp_open+0xbd/0x1d0 [ 123.827614][ T8465] do_sys_openat2+0xa3/0x240 [ 123.832176][ T8465] __x64_sys_openat+0xef/0x110 [ 123.836914][ T8465] do_syscall_64+0x39/0x80 [ 123.841302][ T8465] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 123.847159][ T8465] [ 123.849457][ T8465] Reported by Kernel Concurrency Sanitizer on: [ 123.855594][ T8465] CPU: 1 PID: 8465 Comm: syz-fuzzer Not tainted 5.10.0-rc2-syzkaller #0 [ 123.863907][ T8465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 123.873954][ T8465] ================================================================== [ 123.881992][ T8465] Kernel panic - not syncing: panic_on_warn set ... [ 123.888655][ T8465] CPU: 1 PID: 8465 Comm: syz-fuzzer Not tainted 5.10.0-rc2-syzkaller #0 [ 123.897049][ T8465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 123.907085][ T8465] Call Trace: [ 123.910350][ T8465] dump_stack+0x116/0x15d [ 123.914698][ T8465] panic+0x1e7/0x5fa [ 123.918600][ T8465] ? vprintk_emit+0x2f2/0x370 [ 123.923260][ T8465] kcsan_report+0x67b/0x680 [ 123.927757][ T8465] ? kcsan_setup_watchpoint+0x46a/0x4d0 [ 123.933296][ T8465] ? atime_needs_update+0x133/0x370 [ 123.938475][ T8465] ? touch_atime+0x53/0x1a0 [ 123.942967][ T8465] ? generic_file_buffered_read+0x1a1c/0x2110 [ 123.949011][ T8465] ? generic_file_read_iter+0x80/0x3d0 [ 123.954614][ T8465] ? ext4_file_read_iter+0x2d0/0x420 [ 123.959898][ T8465] ? __kernel_read+0x307/0x560 [ 123.964638][ T8465] ? integrity_kernel_read+0x4c/0x70 [ 123.969900][ T8465] ? ima_calc_file_hash+0x9c7/0x1430 [ 123.975179][ T8465] ? ima_collect_measurement+0x168/0x300 [ 123.980808][ T8465] ? process_measurement+0x9f1/0x1050 [ 123.986164][ T8465] ? ima_file_check+0x72/0xa0 [ 123.990813][ T8465] ? path_openat+0x1887/0x20a0 [ 123.995560][ T8465] ? do_filp_open+0xbd/0x1d0 [ 124.000121][ T8465] ? do_sys_openat2+0xa3/0x240 [ 124.004870][ T8465] ? __x64_sys_openat+0xef/0x110 [ 124.009791][ T8465] ? do_syscall_64+0x39/0x80 [ 124.014368][ T8465] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 124.020411][ T8465] ? page_cache_ra_unbounded+0x484/0x4c0 [ 124.026023][ T8465] kcsan_setup_watchpoint+0x46a/0x4d0 [ 124.031368][ T8465] ? __check_object_size+0x253/0x310 [ 124.036639][ T8465] atime_needs_update+0x133/0x370 [ 124.041633][ T8465] touch_atime+0x53/0x1a0 [ 124.045955][ T8465] ? mark_page_accessed+0x529/0x5e0 [ 124.051126][ T8465] ? generic_file_buffered_read+0x14b5/0x2110 [ 124.057178][ T8465] generic_file_buffered_read+0x1a1c/0x2110 [ 124.063050][ T8465] generic_file_read_iter+0x80/0x3d0 [ 124.068311][ T8465] ext4_file_read_iter+0x2d0/0x420 [ 124.073519][ T8465] __kernel_read+0x307/0x560 [ 124.078127][ T8465] integrity_kernel_read+0x4c/0x70 [ 124.083216][ T8465] ima_calc_file_hash+0x9c7/0x1430 [ 124.088343][ T8465] ? __should_failslab+0x81/0x90 [ 124.093298][ T8465] ? integrity_audit_message+0x7b/0x280 [ 124.098861][ T8465] ? should_failslab+0x5/0x20 [ 124.103544][ T8465] ? slab_pre_alloc_hook+0x20/0xb0 [ 124.108730][ T8465] ? widen_string+0x3a/0x280 [ 124.113292][ T8465] ? format_decode+0x1d3/0x840 [ 124.118034][ T8465] ? string+0x1f9/0x210 [ 124.122180][ T8465] ? __rcu_read_unlock+0x3a/0x220 [ 124.127180][ T8465] ? ext4_xattr_ibody_get+0x68/0x630 [ 124.132449][ T8465] ? aa_get_newest_label+0x74/0x250 [ 124.137621][ T8465] ? apparmor_capable+0xfe/0x160 [ 124.142528][ T8465] ? __rcu_read_unlock+0x3a/0x220 [ 124.147524][ T8465] ? ext4_xattr_get+0x27d/0x580 [ 124.152348][ T8465] ? ima_match_policy+0xa54/0xa90 [ 124.157362][ T8465] ima_collect_measurement+0x168/0x300 [ 124.162807][ T8465] process_measurement+0x9f1/0x1050 [ 124.167990][ T8465] ? dquot_file_open+0x68/0x80 [ 124.172736][ T8465] ? ext4_file_open+0x18e/0x3b0 [ 124.177558][ T8465] ? __rcu_read_unlock+0x51/0x220 [ 124.182551][ T8465] ? fsnotify_perm+0x296/0x2d0 [ 124.187285][ T8465] ? aa_get_task_label+0x72/0xc0 [ 124.192196][ T8465] ? apparmor_task_getsecid+0x81/0xa0 [ 124.197544][ T8465] ima_file_check+0x72/0xa0 [ 124.202022][ T8465] path_openat+0x1887/0x20a0 [ 124.206585][ T8465] do_filp_open+0xbd/0x1d0 [ 124.210993][ T8465] ? _raw_spin_unlock+0x22/0x40 [ 124.215830][ T8465] ? __alloc_fd+0x33c/0x390 [ 124.220316][ T8465] do_sys_openat2+0xa3/0x240 [ 124.224883][ T8465] ? mem_cgroup_handle_over_high+0x34/0x3a0 [ 124.230749][ T8465] __x64_sys_openat+0xef/0x110 [ 124.235495][ T8465] do_syscall_64+0x39/0x80 [ 124.239883][ T8465] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 124.245744][ T8465] RIP: 0033:0x4b3d4a [ 124.249615][ T8465] 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 [ 124.270244][ T8465] RSP: 002b:000000c027835808 EFLAGS: 00000216 ORIG_RAX: 0000000000000101 [ 124.278643][ T8465] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b3d4a [ 124.286590][ T8465] RDX: 0000000000080002 RSI: 000000c024cc8400 RDI: ffffffffffffff9c [ 124.294537][ T8465] RBP: 000000c027835880 R08: 0000000000000000 R09: 0000000000000000 [ 124.302500][ T8465] R10: 00000000000001a4 R11: 0000000000000216 R12: ffffffffffffffff [ 124.310443][ T8465] R13: 0000000000000021 R14: 0000000000000020 R15: 0000000000000100 [ 124.319022][ T8465] Kernel Offset: disabled [ 124.323327][ T8465] Rebooting in 86400 seconds..