Warning: Permanently added '10.128.0.159' (ECDSA) to the list of known hosts. 2021/01/26 16:50:33 fuzzer started 2021/01/26 16:50:34 dialing manager at 10.128.0.105:43031 2021/01/26 16:50:34 syscalls: 3466 2021/01/26 16:50:34 code coverage: enabled 2021/01/26 16:50:34 comparison tracing: enabled 2021/01/26 16:50:34 extra coverage: enabled 2021/01/26 16:50:34 setuid sandbox: enabled 2021/01/26 16:50:34 namespace sandbox: enabled 2021/01/26 16:50:34 Android sandbox: /sys/fs/selinux/policy does not exist 2021/01/26 16:50:34 fault injection: enabled 2021/01/26 16:50:34 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/01/26 16:50:34 net packet injection: enabled 2021/01/26 16:50:34 net device setup: enabled 2021/01/26 16:50:34 concurrency sanitizer: enabled 2021/01/26 16:50:34 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/01/26 16:50:34 USB emulation: enabled 2021/01/26 16:50:34 hci packet injection: enabled 2021/01/26 16:50:34 wifi device emulation: enabled 2021/01/26 16:50:35 suppressing KCSAN reports in functions: 'ext4_free_inodes_count' 'blk_mq_rq_ctx_init' '__ext4_new_inode' 'ext4_free_inode' 'ext4_mark_iloc_dirty' 'blk_mq_dispatch_rq_list' 2021/01/26 16:50:35 fetching corpus: 0, signal 0/2000 (executing program) 2021/01/26 16:50:35 fetching corpus: 50, signal 29511/32572 (executing program) 2021/01/26 16:50:35 fetching corpus: 98, signal 53864/57341 (executing program) 2021/01/26 16:50:35 fetching corpus: 148, signal 63106/67198 (executing program) 2021/01/26 16:50:35 fetching corpus: 198, signal 71203/75729 (executing program) 2021/01/26 16:50:35 fetching corpus: 248, signal 78044/82869 (executing program) 2021/01/26 16:50:35 fetching corpus: 298, signal 81779/87120 (executing program) 2021/01/26 16:50:36 fetching corpus: 347, signal 89759/94936 (executing program) 2021/01/26 16:50:36 fetching corpus: 397, signal 94825/99991 (executing program) 2021/01/26 16:50:36 fetching corpus: 446, signal 101558/106280 (executing program) 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2021/01/26 16:50:37 fetching corpus: 848, signal 130428/132327 (executing program) 2021/01/26 16:50:37 fetching corpus: 848, signal 130428/132345 (executing program) 2021/01/26 16:50:37 fetching corpus: 848, signal 130428/132374 (executing program) 2021/01/26 16:50:37 fetching corpus: 848, signal 130428/132409 (executing program) 2021/01/26 16:50:37 fetching corpus: 848, signal 130428/132452 (executing program) 2021/01/26 16:50:37 fetching corpus: 848, signal 130428/132480 (executing program) 2021/01/26 16:50:37 fetching corpus: 848, signal 130428/132510 (executing program) 2021/01/26 16:50:37 fetching corpus: 848, signal 130428/132537 (executing program) 2021/01/26 16:50:37 fetching corpus: 848, signal 130428/132541 (executing program) 2021/01/26 16:50:37 fetching corpus: 848, signal 130428/132541 (executing program) 2021/01/26 16:50:39 starting 6 fuzzer processes 16:50:39 executing program 0: r0 = getpid() prctl$PR_SET_PTRACER(0x59616d61, r0) clone(0x2000000002000100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r1 = gettid() r2 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$EBT_SO_SET_ENTRIES(r2, 0x0, 0x80, &(0x7f00000001c0)=@broute={'broute\x00', 0x20, 0x1, 0x220, [0x0, 0x0, 0x0, 0x0, 0x0, 0x20000500], 0x7, 0x0, &(0x7f0000000500)=ANY=[@ANYBLOB="00000000000000000000000000000000000000000000000000000000000000000000000000000000ffffffff0000000000000000000000000000000000020000000000000000004000000000000000000000000000000000feffffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000ffffffff01000000110000000000000000006e2a30456b880000145b41fe6900000079616d3000000000000000000000000079616d300000f200000000000000000076657468315f082f5f626f6e640000000180c20000000000000000000180c20000000000000000000000b000000067010000900100007374617469737469630000a42e4dbf00000000000000000000000000000000001800000000000000000000000000000000000000000000000000000000000000646e61740000000000000000ff0300000000000000000000000000000000000010000000000000000180c20000000000ffffffff000000006e666c6f670000000000000000000000000000000000000000000000000050000000121b6eb244000000000000000022d4e27ebdf3b9dc569e338e2c551c2fc4a19597ba4c501c8b1f16fb7809c40aae86d9a0ef7981f4af1506f4fe16383d2afb577ed2bb6dd99f024b3f54ba0000000041554449be553f8d00000000000000000000000000000000000000000000000008000000000000200000000000005e0000000000000000"]}, 0x298) ptrace$setopts(0x4206, r1, 0x0, 0x0) tkill(r1, 0x5) r3 = socket$unix(0x1, 0x2, 0x0) r4 = fcntl$dupfd(r3, 0x0, r3) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) wait4(0x0, 0x0, 0x0, 0x0) [ 35.742047][ T8434] ================================================================== [ 35.750307][ T8434] BUG: KCSAN: data-race in atime_needs_update / propagate_one [ 35.758126][ T8434] [ 35.760432][ T8434] read-write to 0xffff888140cff5f0 of 4 bytes by task 8451 on cpu 1: [ 35.768470][ T8434] propagate_one+0x323/0x3f0 [ 35.773368][ T8434] propagate_mnt+0x2f8/0x650 [ 35.778165][ T8434] attach_recursive_mnt+0x4fb/0x1180 [ 35.783479][ T8434] path_mount+0x1aed/0x1c10 [ 35.788015][ T8434] __se_sys_mount+0x23d/0x2e0 [ 35.792711][ T8434] __x64_sys_mount+0x63/0x70 [ 35.797556][ T8434] do_syscall_64+0x39/0x80 [ 35.802398][ T8434] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 35.808297][ T8434] [ 35.810609][ T8434] read to 0xffff888140cff5f0 of 4 bytes by task 8434 on cpu 0: [ 35.818138][ T8434] atime_needs_update+0x1b7/0x370 [ 35.823275][ T8434] touch_atime+0x55/0x2d0 [ 35.827596][ T8434] generic_file_buffered_read+0x92b/0x9a0 [ 35.833397][ T8434] generic_file_read_iter+0x80/0x3d0 [ 35.838681][ T8434] ext4_file_read_iter+0x2d0/0x420 [ 35.844253][ T8434] __kernel_read+0x307/0x560 [ 35.848884][ T8434] integrity_kernel_read+0x4c/0x70 [ 35.854085][ T8434] ima_calc_file_hash+0x956/0x1390 [ 35.859204][ T8434] ima_collect_measurement+0x168/0x300 [ 35.864845][ T8434] process_measurement+0x9f1/0x1050 [ 35.870534][ T8434] ima_file_check+0x72/0xa0 [ 35.875119][ T8434] path_openat+0x1887/0x20a0 [ 35.879696][ T8434] do_filp_open+0xbd/0x1d0 [ 35.884097][ T8434] do_sys_openat2+0xa3/0x240 [ 35.888774][ T8434] __x64_sys_openat+0xef/0x110 [ 35.893631][ T8434] do_syscall_64+0x39/0x80 [ 35.898399][ T8434] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 35.904900][ T8434] [ 35.907212][ T8434] Reported by Kernel Concurrency Sanitizer on: [ 35.913341][ T8434] CPU: 0 PID: 8434 Comm: syz-fuzzer Not tainted 5.11.0-rc5-syzkaller #0 [ 35.921903][ T8434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.932206][ T8434] ================================================================== [ 35.940901][ T8434] Kernel panic - not syncing: panic_on_warn set ... [ 35.947861][ T8434] CPU: 0 PID: 8434 Comm: syz-fuzzer Not tainted 5.11.0-rc5-syzkaller #0 [ 35.956165][ T8434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.966210][ T8434] Call Trace: [ 35.969557][ T8434] dump_stack+0x116/0x15d [ 35.973871][ T8434] panic+0x1e7/0x5fa [ 35.977756][ T8434] ? vprintk_emit+0x2e2/0x360 [ 35.982883][ T8434] kcsan_report+0x67b/0x680 [ 35.987454][ T8434] ? kcsan_setup_watchpoint+0x47b/0x4e0 [ 35.992979][ T8434] ? atime_needs_update+0x1b7/0x370 [ 35.998183][ T8434] ? touch_atime+0x55/0x2d0 [ 36.002771][ T8434] ? generic_file_buffered_read+0x92b/0x9a0 [ 36.008766][ T8434] ? generic_file_read_iter+0x80/0x3d0 [ 36.014469][ T8434] ? ext4_file_read_iter+0x2d0/0x420 [ 36.020711][ T8434] ? __kernel_read+0x307/0x560 [ 36.025472][ T8434] ? integrity_kernel_read+0x4c/0x70 [ 36.030915][ T8434] ? ima_calc_file_hash+0x956/0x1390 [ 36.036182][ T8434] ? ima_collect_measurement+0x168/0x300 [ 36.041807][ T8434] ? process_measurement+0x9f1/0x1050 [ 36.047171][ T8434] ? ima_file_check+0x72/0xa0 [ 36.051842][ T8434] ? path_openat+0x1887/0x20a0 [ 36.056597][ T8434] ? do_filp_open+0xbd/0x1d0 [ 36.061346][ T8434] ? do_sys_openat2+0xa3/0x240 [ 36.066110][ T8434] ? __x64_sys_openat+0xef/0x110 [ 36.071053][ T8434] ? do_syscall_64+0x39/0x80 [ 36.075636][ T8434] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 36.081721][ T8434] kcsan_setup_watchpoint+0x47b/0x4e0 [ 36.087084][ T8434] atime_needs_update+0x1b7/0x370 [ 36.092302][ T8434] touch_atime+0x55/0x2d0 [ 36.096716][ T8434] generic_file_buffered_read+0x92b/0x9a0 [ 36.102653][ T8434] generic_file_read_iter+0x80/0x3d0 [ 36.107941][ T8434] ext4_file_read_iter+0x2d0/0x420 [ 36.113159][ T8434] __kernel_read+0x307/0x560 [ 36.117864][ T8434] integrity_kernel_read+0x4c/0x70 [ 36.123270][ T8434] ima_calc_file_hash+0x956/0x1390 [ 36.128471][ T8434] ? prandom_u32_state+0x9/0x80 [ 36.133467][ T8434] ? widen_string+0x3a/0x280 [ 36.138184][ T8434] ? format_decode+0x1d3/0x840 [ 36.143037][ T8434] ? string+0x1f9/0x210 [ 36.147273][ T8434] ? __down_read_common+0x14e/0x510 [ 36.152460][ T8434] ? ext4_xattr_ibody_get+0x68/0x630 [ 36.157727][ T8434] ? aa_get_newest_label+0x74/0x250 [ 36.162909][ T8434] ? apparmor_capable+0xfe/0x160 [ 36.167840][ T8434] ? ext4_xattr_get+0x27d/0x580 [ 36.172774][ T8434] ? ima_match_policy+0xa80/0xab0 [ 36.177877][ T8434] ima_collect_measurement+0x168/0x300 [ 36.183922][ T8434] process_measurement+0x9f1/0x1050 [ 36.189190][ T8434] ? dquot_file_open+0x68/0x80 [ 36.193971][ T8434] ? ext4_file_open+0x186/0x560 [ 36.198915][ T8434] ? aa_get_newest_label+0x74/0x250 [ 36.204127][ T8434] ? __rcu_read_unlock+0x51/0x250 [ 36.209142][ T8434] ? fsnotify_perm+0x296/0x2d0 [ 36.213892][ T8434] ? aa_get_task_label+0x72/0xc0 [ 36.218996][ T8434] ? apparmor_task_getsecid+0x81/0xa0 [ 36.224350][ T8434] ima_file_check+0x72/0xa0 [ 36.228852][ T8434] path_openat+0x1887/0x20a0 [ 36.233509][ T8434] ? up_write+0x25/0xc0 [ 36.237747][ T8434] do_filp_open+0xbd/0x1d0 [ 36.242142][ T8434] ? _raw_spin_unlock+0x22/0x40 [ 36.247507][ T8434] ? alloc_fd+0x35d/0x3b0 [ 36.252165][ T8434] do_sys_openat2+0xa3/0x240 [ 36.256961][ T8434] ? mem_cgroup_handle_over_high+0x34/0x4d0 [ 36.263053][ T8434] __x64_sys_openat+0xef/0x110 [ 36.267900][ T8434] do_syscall_64+0x39/0x80 [ 36.272583][ T8434] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 36.278522][ T8434] RIP: 0033:0x4b105a [ 36.282405][ T8434] Code: e8 fb c2 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 [ 36.303339][ T8434] RSP: 002b:000000c00032d798 EFLAGS: 00000216 ORIG_RAX: 0000000000000101 [ 36.312371][ T8434] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004b105a [ 36.320780][ T8434] RDX: 0000000000080002 RSI: 000000c001030160 RDI: ffffffffffffff9c [ 36.328736][ T8434] RBP: 000000c00032d810 R08: 0000000000000000 R09: 0000000000000000 [ 36.336709][ T8434] R10: 00000000000001a4 R11: 0000000000000216 R12: ffffffffffffffff [ 36.344681][ T8434] R13: 000000000000000c R14: 000000000000000b R15: 0000000000000100 [ 36.353737][ T8434] Kernel Offset: disabled [ 36.358146][ T8434] Rebooting in 86400 seconds..