Warning: Permanently added '10.128.0.124' (ECDSA) to the list of known hosts. 2021/02/01 19:48:23 fuzzer started 2021/02/01 19:48:24 dialing manager at 10.128.0.105:38895 2021/02/01 19:48:24 syscalls: 3466 2021/02/01 19:48:24 code coverage: enabled 2021/02/01 19:48:24 comparison tracing: enabled 2021/02/01 19:48:24 extra coverage: enabled 2021/02/01 19:48:24 setuid sandbox: enabled 2021/02/01 19:48:24 namespace sandbox: enabled 2021/02/01 19:48:24 Android sandbox: /sys/fs/selinux/policy does not exist 2021/02/01 19:48:24 fault injection: enabled 2021/02/01 19:48:24 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/02/01 19:48:24 net packet injection: enabled 2021/02/01 19:48:24 net device setup: enabled 2021/02/01 19:48:24 concurrency sanitizer: enabled 2021/02/01 19:48:24 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/02/01 19:48:24 USB emulation: enabled 2021/02/01 19:48:24 hci packet injection: enabled 2021/02/01 19:48:24 wifi device emulation: enabled 2021/02/01 19:48:24 fetching corpus: 0, signal 0/2000 (executing program) 2021/02/01 19:48:24 fetching corpus: 28, signal 16871/17424 (executing program) 2021/02/01 19:48:24 fetching corpus: 28, signal 16871/17718 (executing program) 2021/02/01 19:48:24 fetching corpus: 28, signal 16871/18036 (executing program) 2021/02/01 19:48:24 fetching corpus: 28, signal 16871/18334 (executing program) 2021/02/01 19:48:24 fetching corpus: 28, signal 16871/18631 (executing program) 2021/02/01 19:48:24 fetching corpus: 28, signal 16871/18957 (executing program) 2021/02/01 19:48:24 fetching corpus: 28, signal 16871/19246 (executing program) 2021/02/01 19:48:24 fetching corpus: 28, signal 16871/19246 (executing program) 2021/02/01 19:48:26 starting 6 fuzzer processes 19:48:26 executing program 0: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000080)=0x3) ioctl$TIOCSETD(r0, 0x5412, &(0x7f0000000280)) [ 32.573055][ T8433] ================================================================== [ 32.581289][ T8433] BUG: KCSAN: data-race in atime_needs_update / propagate_one [ 32.588841][ T8433] [ 32.591173][ T8433] write to 0xffff888100bd3430 of 4 bytes by task 8447 on cpu 1: [ 32.598800][ T8433] propagate_one+0x32d/0x400 [ 32.603645][ T8433] propagate_mnt+0x2f8/0x640 [ 32.608224][ T8433] attach_recursive_mnt+0x4fb/0x11c0 [ 32.613605][ T8433] path_mount+0x1b71/0x1ca0 [ 32.618149][ T8433] __se_sys_mount+0x23d/0x2e0 [ 32.623042][ T8433] __x64_sys_mount+0x63/0x70 [ 32.627918][ T8433] do_syscall_64+0x39/0x80 [ 32.632333][ T8433] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 32.639115][ T8433] [ 32.641540][ T8433] read to 0xffff888100bd3430 of 4 bytes by task 8433 on cpu 0: [ 32.649070][ T8433] atime_needs_update+0x1b7/0x370 [ 32.655045][ T8433] touch_atime+0x55/0x2d0 [ 32.659372][ T8433] generic_file_buffered_read+0x945/0x9c0 [ 32.665178][ T8433] generic_file_read_iter+0x82/0x3e0 [ 32.671042][ T8433] ext4_file_read_iter+0x2e0/0x430 [ 32.677032][ T8433] __kernel_read+0x306/0x580 [ 32.681626][ T8433] integrity_kernel_read+0x4c/0x70 [ 32.686781][ T8433] ima_calc_file_hash+0x929/0x1310 [ 32.694455][ T8433] ima_collect_measurement+0x168/0x310 [ 32.700159][ T8433] process_measurement+0xa4c/0x10c0 [ 32.705393][ T8433] ima_file_check+0x75/0xa0 [ 32.710174][ T8433] path_openat+0x188a/0x20a0 [ 32.715025][ T8433] do_filp_open+0xbd/0x1d0 [ 32.719446][ T8433] do_sys_openat2+0xa3/0x250 [ 32.724161][ T8433] __x64_sys_openat+0xef/0x110 [ 32.729139][ T8433] do_syscall_64+0x39/0x80 [ 32.733579][ T8433] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 32.739828][ T8433] [ 32.742163][ T8433] Reported by Kernel Concurrency Sanitizer on: [ 32.750664][ T8433] CPU: 0 PID: 8433 Comm: syz-fuzzer Not tainted 5.11.0-rc6-syzkaller #0 [ 32.760022][ T8433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.772068][ T8433] ================================================================== [ 32.782077][ T8433] Kernel panic - not syncing: panic_on_warn set ... [ 32.790649][ T8433] CPU: 0 PID: 8433 Comm: syz-fuzzer Not tainted 5.11.0-rc6-syzkaller #0 [ 32.799251][ T8433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.810163][ T8433] Call Trace: [ 32.813612][ T8433] dump_stack+0x116/0x15d [ 32.817934][ T8433] panic+0x1e7/0x5fa [ 32.821828][ T8433] ? vprintk_emit+0x2e2/0x360 [ 32.826830][ T8433] kcsan_report+0x67b/0x680 [ 32.831344][ T8433] ? kcsan_setup_watchpoint+0x472/0x4d0 [ 32.836890][ T8433] ? atime_needs_update+0x1b7/0x370 [ 32.842204][ T8433] ? touch_atime+0x55/0x2d0 [ 32.846701][ T8433] ? generic_file_buffered_read+0x945/0x9c0 [ 32.852678][ T8433] ? generic_file_read_iter+0x82/0x3e0 [ 32.858236][ T8433] ? ext4_file_read_iter+0x2e0/0x430 [ 32.863544][ T8433] ? __kernel_read+0x306/0x580 [ 32.868303][ T8433] ? integrity_kernel_read+0x4c/0x70 [ 32.876839][ T8433] ? ima_calc_file_hash+0x929/0x1310 [ 32.882971][ T8433] ? ima_collect_measurement+0x168/0x310 [ 32.888609][ T8433] ? process_measurement+0xa4c/0x10c0 [ 32.894378][ T8433] ? ima_file_check+0x75/0xa0 [ 32.899067][ T8433] ? path_openat+0x188a/0x20a0 [ 32.903924][ T8433] ? do_filp_open+0xbd/0x1d0 [ 32.908521][ T8433] ? do_sys_openat2+0xa3/0x250 [ 32.913409][ T8433] ? __x64_sys_openat+0xef/0x110 [ 32.918481][ T8433] ? do_syscall_64+0x39/0x80 [ 32.923120][ T8433] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 32.929190][ T8433] ? find_get_pages_contig+0x4a9/0x4e0 [ 32.934652][ T8433] kcsan_setup_watchpoint+0x472/0x4d0 [ 32.940013][ T8433] atime_needs_update+0x1b7/0x370 [ 32.945034][ T8433] touch_atime+0x55/0x2d0 [ 32.949357][ T8433] generic_file_buffered_read+0x945/0x9c0 [ 32.955192][ T8433] generic_file_read_iter+0x82/0x3e0 [ 32.960477][ T8433] ext4_file_read_iter+0x2e0/0x430 [ 32.965598][ T8433] __kernel_read+0x306/0x580 [ 32.970191][ T8433] integrity_kernel_read+0x4c/0x70 [ 32.975310][ T8433] ima_calc_file_hash+0x929/0x1310 [ 32.980420][ T8433] ? __switch_to+0x14e/0x4d0 [ 32.985054][ T8433] ? __list_del_entry_valid+0x54/0xc0 [ 32.990439][ T8433] ? __list_add_valid+0x28/0x90 [ 32.995477][ T8433] ? _raw_spin_unlock_irq+0x22/0x40 [ 33.000828][ T8433] ? widen_string+0x3a/0x280 [ 33.005408][ T8433] ? format_decode+0x1e3/0x8a0 [ 33.010272][ T8433] ? __down_read_common+0x14e/0x510 [ 33.015894][ T8433] ? ext4_xattr_ibody_get+0x68/0x630 [ 33.021173][ T8433] ? aa_get_newest_label+0x74/0x250 [ 33.026374][ T8433] ? apparmor_capable+0xfe/0x160 [ 33.031320][ T8433] ? ext4_xattr_get+0x27d/0x580 [ 33.036172][ T8433] ? ima_match_policy+0xa83/0xab0 [ 33.041198][ T8433] ima_collect_measurement+0x168/0x310 [ 33.046658][ T8433] process_measurement+0xa4c/0x10c0 [ 33.051841][ T8433] ? lockref_put_return+0xed/0x140 [ 33.056944][ T8433] ? dquot_file_open+0x68/0x80 [ 33.061693][ T8433] ? ext4_file_open+0x186/0x560 [ 33.066543][ T8433] ? __rcu_read_unlock+0x5c/0x250 [ 33.071830][ T8433] ? fsnotify_perm+0x299/0x2e0 [ 33.076594][ T8433] ? aa_get_task_label+0x72/0xc0 [ 33.081514][ T8433] ? apparmor_task_getsecid+0x81/0xa0 [ 33.086873][ T8433] ima_file_check+0x75/0xa0 [ 33.091372][ T8433] path_openat+0x188a/0x20a0 [ 33.095964][ T8433] ? __ext4_mark_inode_dirty+0x4ec/0x5e0 [ 33.101590][ T8433] ? up_write+0x25/0xc0 [ 33.105734][ T8433] do_filp_open+0xbd/0x1d0 [ 33.110137][ T8433] ? _raw_spin_unlock+0x22/0x40 [ 33.115062][ T8433] ? alloc_fd+0x35d/0x3b0 [ 33.119578][ T8433] do_sys_openat2+0xa3/0x250 [ 33.124164][ T8433] ? mem_cgroup_handle_over_high+0x34/0x4d0 [ 33.130158][ T8433] __x64_sys_openat+0xef/0x110 [ 33.134939][ T8433] do_syscall_64+0x39/0x80 [ 33.139345][ T8433] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 33.145231][ T8433] RIP: 0033:0x4af20a [ 33.149208][ T8433] Code: e8 3b 82 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 [ 33.168800][ T8433] RSP: 002b:000000c00029d7a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 [ 33.177984][ T8433] RAX: ffffffffffffffda RBX: 000000c00001e800 RCX: 00000000004af20a [ 33.186088][ T8433] RDX: 0000000000080002 RSI: 000000c000b125c0 RDI: ffffffffffffff9c [ 33.194132][ T8433] RBP: 000000c00029d818 R08: 0000000000000000 R09: 0000000000000000 [ 33.202105][ T8433] R10: 00000000000001a4 R11: 0000000000000202 R12: ffffffffffffffff [ 33.210154][ T8433] R13: 000000000000002f R14: 000000000000002e R15: 0000000000000100 [ 33.218670][ T8433] Kernel Offset: disabled [ 33.223251][ T8433] Rebooting in 86400 seconds..