Warning: Permanently added '10.128.0.243' (ECDSA) to the list of known hosts. 2019/10/14 10:51:41 fuzzer started 2019/10/14 10:51:42 dialing manager at 10.128.0.105:43961 2019/10/14 10:51:42 syscalls: 2523 2019/10/14 10:51:42 code coverage: enabled 2019/10/14 10:51:42 comparison tracing: enabled 2019/10/14 10:51:42 extra coverage: extra coverage is not supported by the kernel 2019/10/14 10:51:42 setuid sandbox: enabled 2019/10/14 10:51:42 namespace sandbox: enabled 2019/10/14 10:51:42 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/14 10:51:42 fault injection: enabled 2019/10/14 10:51:42 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/14 10:51:42 net packet injection: enabled 2019/10/14 10:51:42 net device setup: enabled 2019/10/14 10:51:42 concurrency sanitizer: enabled 10:51:45 executing program 0: request_key(0x0, 0x0, 0x0, 0xfffffffffffffffd) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0xb2) r0 = creat(&(0x7f0000000040)='./bus\x00', 0x0) lseek(r0, 0x800000, 0x0) ioctl$EXT4_IOC_SETFLAGS(r0, 0x40086602, &(0x7f00000001c0)) write$binfmt_elf64(r0, &(0x7f0000000140)=ANY=[@ANYBLOB='\x00'], 0x1) fallocate(r0, 0x3, 0x800000, 0x8020003) syzkaller login: [ 50.749889][ T7310] IPVS: ftp: loaded support on port[0] = 21 [ 50.839946][ T7310] chnl_net:caif_netlink_parms(): no params data found [ 50.851845][ T7308] ================================================================== [ 50.859957][ T7308] BUG: KCSAN: data-race in __zone_watermark_ok / get_page_from_freelist [ 50.868270][ T7308] [ 50.870588][ T7308] read to 0xffff88812fffce88 of 8 bytes by task 7310 on cpu 0: [ 50.878115][ T7308] __zone_watermark_ok+0x106/0x240 [ 50.883214][ T7308] get_page_from_freelist+0x629/0x2300 [ 50.888659][ T7308] __alloc_pages_nodemask+0x255/0x4d0 [ 50.894102][ T7308] cache_grow_begin+0x76/0x670 [ 50.898850][ T7308] __kmalloc+0x59c/0x690 [ 50.903076][ T7308] batadv_hash_new+0x78/0x1e0 [ 50.907737][ T7308] batadv_dat_init+0x5f/0xc0 [ 50.912314][ T7308] batadv_mesh_init+0x3df/0x4b0 [ 50.917151][ T7308] batadv_softif_init_late+0x53c/0x5c0 [ 50.922763][ T7308] register_netdevice+0x14c/0xa50 [ 50.927794][ T7308] __rtnl_newlink+0xf9d/0x1010 [ 50.932548][ T7308] rtnl_newlink+0x63/0x90 [ 50.936870][ T7308] rtnetlink_rcv_msg+0x1d3/0x500 [ 50.941794][ T7308] netlink_rcv_skb+0xb0/0x260 [ 50.946452][ T7308] [ 50.948778][ T7308] write to 0xffff88812fffce88 of 8 bytes by task 7308 on cpu 1: [ 50.956412][ T7308] get_page_from_freelist+0x1217/0x2300 [ 50.961951][ T7308] __alloc_pages_nodemask+0x255/0x4d0 [ 50.967315][ T7308] alloc_pages_current+0xd1/0x170 [ 50.972331][ T7308] __page_cache_alloc+0x183/0x1a0 [ 50.977355][ T7308] __do_page_cache_readahead+0x13e/0x390 [ 50.982971][ T7308] ondemand_readahead+0x35d/0x710 [ 50.987979][ T7308] page_cache_async_readahead+0x22c/0x250 [ 50.993685][ T7308] generic_file_read_iter+0xffc/0x1440 [ 50.999152][ T7308] ext4_file_read_iter+0xfa/0x240 [ 51.004165][ T7308] new_sync_read+0x389/0x4f0 [ 51.008739][ T7308] __vfs_read+0xb1/0xc0 [ 51.012884][ T7308] integrity_kernel_read+0xa1/0xe0 [ 51.017981][ T7308] ima_calc_file_hash_tfm+0x1b5/0x260 [ 51.023329][ T7308] [ 51.025644][ T7308] Reported by Kernel Concurrency Sanitizer on: [ 51.031786][ T7308] CPU: 1 PID: 7308 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 51.038873][ T7308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.048916][ T7308] ================================================================== [ 51.056956][ T7308] Kernel panic - not syncing: panic_on_warn set ... [ 51.063529][ T7308] CPU: 1 PID: 7308 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 51.070618][ T7308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.080654][ T7308] Call Trace: [ 51.083938][ T7308] dump_stack+0xf5/0x159 [ 51.088174][ T7308] panic+0x209/0x639 [ 51.092057][ T7308] ? ext4_file_read_iter+0xfa/0x240 [ 51.097246][ T7308] ? vprintk_func+0x8d/0x140 [ 51.101825][ T7308] kcsan_report.cold+0xc/0x1b [ 51.106508][ T7308] __kcsan_setup_watchpoint+0x3ee/0x510 [ 51.112048][ T7308] __tsan_write8+0x32/0x40 [ 51.116460][ T7308] get_page_from_freelist+0x1217/0x2300 [ 51.122019][ T7308] __alloc_pages_nodemask+0x255/0x4d0 [ 51.127389][ T7308] alloc_pages_current+0xd1/0x170 [ 51.132509][ T7308] __page_cache_alloc+0x183/0x1a0 [ 51.137530][ T7308] __do_page_cache_readahead+0x13e/0x390 [ 51.143161][ T7308] ondemand_readahead+0x35d/0x710 [ 51.148191][ T7308] page_cache_async_readahead+0x22c/0x250 [ 51.153909][ T7308] generic_file_read_iter+0xffc/0x1440 [ 51.160847][ T7308] ext4_file_read_iter+0xfa/0x240 [ 51.165882][ T7308] new_sync_read+0x389/0x4f0 [ 51.170473][ T7308] __vfs_read+0xb1/0xc0 [ 51.174623][ T7308] integrity_kernel_read+0xa1/0xe0 [ 51.179732][ T7308] ima_calc_file_hash_tfm+0x1b5/0x260 [ 51.185098][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.190718][ T7308] ? should_fail+0xd4/0x45d [ 51.195212][ T7308] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 51.200924][ T7308] ? widen_string+0x4a/0x1a0 [ 51.205530][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.211154][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.216790][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.222407][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.228027][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.233644][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.239265][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.244883][ T7308] ? __tsan_read4+0x2c/0x30 [ 51.249378][ T7308] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.255607][ T7308] ? refcount_sub_and_test_checked+0xc8/0x190 [ 51.261659][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.267280][ T7308] ? __tsan_read4+0x2c/0x30 [ 51.271777][ T7308] ima_calc_file_hash+0x158/0xf10 [ 51.276787][ T7308] ? __tsan_write8+0x32/0x40 [ 51.281372][ T7308] ? ext4_xattr_get+0x10b/0x5c0 [ 51.286209][ T7308] ? __rcu_read_unlock+0x62/0xe0 [ 51.291135][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.296761][ T7308] ima_collect_measurement+0x384/0x3b0 [ 51.302215][ T7308] process_measurement+0x980/0xff0 [ 51.307317][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.312949][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.318656][ T7308] ? __tsan_read4+0x2c/0x30 [ 51.323147][ T7308] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.329373][ T7308] ? refcount_sub_and_test_checked+0xc8/0x190 [ 51.335426][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.341047][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.346668][ T7308] ima_file_check+0x7e/0xb0 [ 51.351159][ T7308] path_openat+0xfb1/0x3530 [ 51.355650][ T7308] ? __kcsan_setup_watchpoint+0x96/0x510 [ 51.361291][ T7308] do_filp_open+0x11e/0x1b0 [ 51.365788][ T7308] ? _raw_spin_unlock+0x4b/0x60 [ 51.370627][ T7308] ? __alloc_fd+0x316/0x4c0 [ 51.375121][ T7308] ? get_unused_fd_flags+0x93/0xc0 [ 51.380220][ T7308] do_sys_open+0x3b3/0x4f0 [ 51.384627][ T7308] __x64_sys_openat+0x62/0x80 [ 51.389296][ T7308] do_syscall_64+0xcf/0x2f0 [ 51.393789][ T7308] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.399664][ T7308] RIP: 0033:0x47c5aa [ 51.403550][ T7308] 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 [ 51.423149][ T7308] RSP: 002b:000000c4203bd850 EFLAGS: 00000206 ORIG_RAX: 0000000000000101 [ 51.431560][ T7308] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c5aa [ 51.439527][ T7308] RDX: 0000000000080002 RSI: 000000c4200226c0 RDI: ffffffffffffff9c [ 51.447485][ T7308] RBP: 000000c4203bd8d0 R08: 0000000000000000 R09: 0000000000000000 [ 51.455441][ T7308] R10: 00000000000001a4 R11: 0000000000000206 R12: ffffffffffffffff [ 51.463396][ T7308] R13: 0000000000000037 R14: 0000000000000036 R15: 0000000000000100 [ 52.601163][ T7308] Shutting down cpus with NMI [ 52.607297][ T7308] Kernel Offset: disabled [ 52.611621][ T7308] Rebooting in 86400 seconds..