Warning: Permanently added '10.128.0.114' (ECDSA) to the list of known hosts. 2019/10/08 19:13:23 fuzzer started 2019/10/08 19:13:25 dialing manager at 10.128.0.105:35069 2019/10/08 19:13:25 syscalls: 2523 2019/10/08 19:13:25 code coverage: enabled 2019/10/08 19:13:25 comparison tracing: enabled 2019/10/08 19:13:25 extra coverage: extra coverage is not supported by the kernel 2019/10/08 19:13:25 setuid sandbox: enabled 2019/10/08 19:13:25 namespace sandbox: enabled 2019/10/08 19:13:25 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/08 19:13:25 fault injection: enabled 2019/10/08 19:13:25 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/08 19:13:25 net packet injection: enabled 2019/10/08 19:13:25 net device setup: enabled 2019/10/08 19:13:25 concurrency sanitizer: enabled 19:13:28 executing program 0: io_setup(0x80000000, &(0x7f0000000080)) [ 51.195107][ T7330] ================================================================== [ 51.203292][ T7330] BUG: KCSAN: data-race in ext4_es_lookup_extent / ext4_es_lookup_extent [ 51.211701][ T7330] [ 51.214023][ T7330] write to 0xffff888126affc28 of 8 bytes by task 7333 on cpu 0: [ 51.221643][ T7330] ext4_es_lookup_extent+0x3d3/0x510 [ 51.226920][ T7330] ext4_map_blocks+0xc2/0xf70 [ 51.231585][ T7330] ext4_getblk+0x30b/0x380 [ 51.235990][ T7330] ext4_bread+0x4a/0x190 [ 51.240227][ T7330] __ext4_read_dirblock+0x3e/0x700 [ 51.245325][ T7330] ext4_add_entry+0x46b/0x8e0 [ 51.249984][ T7330] ext4_mkdir+0x515/0x820 [ 51.254315][ T7330] vfs_mkdir+0x283/0x390 [ 51.258544][ T7330] do_mkdirat+0x1ac/0x1f0 [ 51.262860][ T7330] __x64_sys_mkdir+0x40/0x50 [ 51.267440][ T7330] do_syscall_64+0xcf/0x2f0 [ 51.271950][ T7330] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.277822][ T7330] [ 51.280140][ T7330] read to 0xffff888126affc28 of 8 bytes by task 7330 on cpu 1: [ 51.287670][ T7330] ext4_es_lookup_extent+0x3ba/0x510 [ 51.292941][ T7330] ext4_map_blocks+0xc2/0xf70 [ 51.297603][ T7330] ext4_mpage_readpages+0x92b/0x1270 [ 51.302887][ T7330] ext4_readpages+0x92/0xc0 [ 51.307375][ T7330] read_pages+0xa2/0x2d0 [ 51.311605][ T7330] __do_page_cache_readahead+0x353/0x390 [ 51.317235][ T7330] ondemand_readahead+0x35d/0x710 [ 51.322259][ T7330] page_cache_async_readahead+0x22c/0x250 [ 51.327980][ T7330] generic_file_read_iter+0xffc/0x1440 [ 51.333432][ T7330] ext4_file_read_iter+0xfa/0x240 [ 51.338448][ T7330] new_sync_read+0x389/0x4f0 [ 51.343025][ T7330] __vfs_read+0xb1/0xc0 [ 51.347170][ T7330] integrity_kernel_read+0xa1/0xe0 [ 51.352263][ T7330] [ 51.354577][ T7330] Reported by Kernel Concurrency Sanitizer on: [ 51.360719][ T7330] CPU: 1 PID: 7330 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 51.367807][ T7330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.377842][ T7330] ================================================================== [ 51.385889][ T7330] Kernel panic - not syncing: panic_on_warn set ... [ 51.392461][ T7330] CPU: 1 PID: 7330 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 51.399548][ T7330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.409585][ T7330] Call Trace: [ 51.412886][ T7330] dump_stack+0xf5/0x159 [ 51.417124][ T7330] panic+0x209/0x639 [ 51.421014][ T7330] ? generic_file_read_iter+0xffc/0x1440 [ 51.426634][ T7330] ? vprintk_func+0x8d/0x140 [ 51.431229][ T7330] kcsan_report.cold+0xc/0x1b [ 51.435917][ T7330] __kcsan_setup_watchpoint+0x3ee/0x510 [ 51.441465][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.447091][ T7330] __tsan_read8+0x2c/0x30 [ 51.451438][ T7330] ext4_es_lookup_extent+0x3ba/0x510 [ 51.456744][ T7330] ext4_map_blocks+0xc2/0xf70 [ 51.461423][ T7330] ext4_mpage_readpages+0x92b/0x1270 [ 51.466708][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.472329][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.477958][ T7330] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 51.484287][ T7330] ? ext4_invalidatepage+0x1e0/0x1e0 [ 51.489576][ T7330] ext4_readpages+0x92/0xc0 [ 51.494075][ T7330] ? ext4_invalidatepage+0x1e0/0x1e0 [ 51.499348][ T7330] read_pages+0xa2/0x2d0 [ 51.503586][ T7330] __do_page_cache_readahead+0x353/0x390 [ 51.509211][ T7330] ondemand_readahead+0x35d/0x710 [ 51.514226][ T7330] page_cache_async_readahead+0x22c/0x250 [ 51.519938][ T7330] generic_file_read_iter+0xffc/0x1440 [ 51.525415][ T7330] ext4_file_read_iter+0xfa/0x240 [ 51.530432][ T7330] new_sync_read+0x389/0x4f0 [ 51.535022][ T7330] __vfs_read+0xb1/0xc0 [ 51.539171][ T7330] integrity_kernel_read+0xa1/0xe0 [ 51.544275][ T7330] ima_calc_file_hash_tfm+0x1b5/0x260 [ 51.549656][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.555282][ T7330] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 51.560994][ T7330] ? widen_string+0x4a/0x1a0 [ 51.565570][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.571187][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.576809][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.582441][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.588059][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.593681][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.599302][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.604925][ T7330] ? __tsan_read4+0x2c/0x30 [ 51.609419][ T7330] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.615653][ T7330] ? refcount_sub_and_test_checked+0xc8/0x190 [ 51.621721][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.627346][ T7330] ? __tsan_read4+0x2c/0x30 [ 51.631845][ T7330] ima_calc_file_hash+0x158/0xf10 [ 51.636860][ T7330] ? __tsan_write8+0x32/0x40 [ 51.641460][ T7330] ? ext4_xattr_get+0x10b/0x5c0 [ 51.646303][ T7330] ? __rcu_read_unlock+0x62/0xe0 [ 51.651229][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.656853][ T7330] ima_collect_measurement+0x384/0x3b0 [ 51.662310][ T7330] process_measurement+0x980/0xff0 [ 51.667415][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.673032][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.678653][ T7330] ? __tsan_read4+0x2c/0x30 [ 51.683166][ T7330] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.689393][ T7330] ? refcount_sub_and_test_checked+0xc8/0x190 [ 51.695458][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.701087][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.706898][ T7330] ima_file_check+0x7e/0xb0 [ 51.711391][ T7330] path_openat+0xfb1/0x3530 [ 51.715901][ T7330] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.721968][ T7330] do_filp_open+0x11e/0x1b0 [ 51.726464][ T7330] ? _raw_spin_unlock+0x4b/0x60 [ 51.731304][ T7330] ? __alloc_fd+0x316/0x4c0 [ 51.735896][ T7330] ? get_unused_fd_flags+0x93/0xc0 [ 51.741004][ T7330] do_sys_open+0x3b3/0x4f0 [ 51.745415][ T7330] __x64_sys_openat+0x62/0x80 [ 51.750082][ T7330] do_syscall_64+0xcf/0x2f0 [ 51.754583][ T7330] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.760493][ T7330] RIP: 0033:0x47c5aa [ 51.764378][ T7330] Code: e8 7b 6b fb 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 [ 51.783968][ T7330] RSP: 002b:000000c420325850 EFLAGS: 00000206 ORIG_RAX: 0000000000000101 [ 51.792383][ T7330] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c5aa [ 51.800341][ T7330] RDX: 0000000000080002 RSI: 000000c42061a620 RDI: ffffffffffffff9c [ 51.808303][ T7330] RBP: 000000c4203258d0 R08: 0000000000000000 R09: 0000000000000000 [ 51.816263][ T7330] R10: 00000000000001a4 R11: 0000000000000206 R12: ffffffffffffffff [ 51.824393][ T7330] R13: 0000000000000032 R14: 0000000000000031 R15: 0000000000000100 [ 51.833854][ T7330] Kernel Offset: disabled [ 51.838207][ T7330] Rebooting in 86400 seconds..