Warning: Permanently added '10.128.0.50' (ECDSA) to the list of known hosts.
2021/02/10 08:22:45 fuzzer started
2021/02/10 08:22:46 dialing manager at 10.128.0.163:44995
2021/02/10 08:22:46 syscalls: 3470
2021/02/10 08:22:46 code coverage: enabled
2021/02/10 08:22:46 comparison tracing: enabled
2021/02/10 08:22:46 extra coverage: enabled
2021/02/10 08:22:46 setuid sandbox: enabled
2021/02/10 08:22:46 namespace sandbox: enabled
2021/02/10 08:22:46 Android sandbox: /sys/fs/selinux/policy does not exist
2021/02/10 08:22:46 fault injection: enabled
2021/02/10 08:22:46 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2021/02/10 08:22:46 net packet injection: enabled
2021/02/10 08:22:46 net device setup: enabled
2021/02/10 08:22:46 concurrency sanitizer: enabled
2021/02/10 08:22:46 devlink PCI setup: PCI device 0000:00:10.0 is not available
2021/02/10 08:22:46 USB emulation: enabled
2021/02/10 08:22:46 hci packet injection: enabled
2021/02/10 08:22:46 wifi device emulation: enabled
2021/02/10 08:22:46 suppressing KCSAN reports in functions: '__xa_clear_mark' 'blk_mq_dispatch_rq_list' 'alloc_pid' 'start_this_handle' 
2021/02/10 08:22:46 fetching corpus: 0, signal 0/2000 (executing program)
2021/02/10 08:22:46 fetching corpus: 46, signal 26090/28130 (executing program)
2021/02/10 08:22:47 fetching corpus: 96, signal 35341/37400 (executing program)
2021/02/10 08:22:47 fetching corpus: 146, signal 41435/43347 (executing program)
2021/02/10 08:22:47 fetching corpus: 194, signal 45355/46972 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/50304 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/50483 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/50667 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/50890 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/51074 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/51268 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/51448 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/51652 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/51842 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/52044 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/52239 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/52412 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/52604 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/52808 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/52995 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/53170 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/53368 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/53549 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/53723 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/53904 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/54091 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/54294 (executing program)
2021/02/10 08:22:48 fetching corpus: 218, signal 49241/54294 (executing program)
2021/02/10 08:22:49 starting 6 fuzzer processes
08:22:49 executing program 0:
r0 = socket$inet6(0xa, 0x2, 0x0)
sendto$inet6(r0, 0x0, 0x0, 0x8801, &(0x7f0000000000)={0xa, 0x4e23, 0x0, @mcast2}, 0x1c)
sendto$inet6(r0, &(0x7f0000000dc0)="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", 0x5ad, 0x0, 0x0, 0x0)

syzkaller login: [   33.458145][ T8408] ==================================================================
[   33.466251][ T8408] BUG: KCSAN: data-race in atime_needs_update / propagate_one
[   33.473705][ T8408] 
[   33.476021][ T8408] write to 0xffff88810629fdf0 of 4 bytes by task 8415 on cpu 1:
[   33.483627][ T8408]  propagate_one+0x32d/0x400
[   33.488198][ T8408]  propagate_mnt+0x2f8/0x640
[   33.492778][ T8408]  attach_recursive_mnt+0x4fb/0x11c0
[   33.498064][ T8408]  path_mount+0x1b71/0x1ca0
[   33.502661][ T8408]  __se_sys_mount+0x23d/0x2e0
[   33.507367][ T8408]  __x64_sys_mount+0x63/0x70
[   33.512116][ T8408]  do_syscall_64+0x39/0x80
[   33.516635][ T8408]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   33.522813][ T8408] 
[   33.525135][ T8408] read to 0xffff88810629fdf0 of 4 bytes by task 8408 on cpu 0:
[   33.533767][ T8408]  atime_needs_update+0x1b7/0x370
[   33.538998][ T8408]  touch_atime+0x55/0x2d0
[   33.543335][ T8408]  generic_file_buffered_read+0x945/0x9c0
[   33.549035][ T8408]  generic_file_read_iter+0x82/0x3e0
[   33.554300][ T8408]  ext4_file_read_iter+0x2e0/0x430
[   33.559404][ T8408]  __kernel_read+0x306/0x580
[   33.563984][ T8408]  integrity_kernel_read+0x4c/0x70
[   33.569196][ T8408]  ima_calc_file_hash+0x929/0x1310
[   33.574307][ T8408]  ima_collect_measurement+0x168/0x310
[   33.579752][ T8408]  process_measurement+0xa4c/0x10c0
[   33.584943][ T8408]  ima_file_check+0x75/0xa0
[   33.589547][ T8408]  path_openat+0x188a/0x20a0
[   33.594137][ T8408]  do_filp_open+0xbd/0x1d0
[   33.598543][ T8408]  do_sys_openat2+0xa3/0x250
[   33.603117][ T8408]  __x64_sys_openat+0xef/0x110
[   33.607946][ T8408]  do_syscall_64+0x39/0x80
[   33.612340][ T8408]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   33.618208][ T8408] 
[   33.620507][ T8408] Reported by Kernel Concurrency Sanitizer on:
[   33.626640][ T8408] CPU: 0 PID: 8408 Comm: syz-fuzzer Not tainted 5.11.0-rc7-syzkaller #0
[   33.634974][ T8408] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   33.645040][ T8408] ==================================================================
[   33.653136][ T8408] Kernel panic - not syncing: panic_on_warn set ...
[   33.659743][ T8408] CPU: 0 PID: 8408 Comm: syz-fuzzer Not tainted 5.11.0-rc7-syzkaller #0
[   33.668109][ T8408] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   33.678387][ T8408] Call Trace:
[   33.682005][ T8408]  dump_stack+0x116/0x15d
[   33.686326][ T8408]  panic+0x1e7/0x5fa
[   33.690380][ T8408]  ? vprintk_emit+0x2e2/0x360
[   33.695053][ T8408]  kcsan_report+0x67b/0x680
[   33.699546][ T8408]  ? kcsan_setup_watchpoint+0x472/0x4d0
[   33.705073][ T8408]  ? atime_needs_update+0x1b7/0x370
[   33.710252][ T8408]  ? touch_atime+0x55/0x2d0
[   33.714734][ T8408]  ? generic_file_buffered_read+0x945/0x9c0
[   33.720651][ T8408]  ? generic_file_read_iter+0x82/0x3e0
[   33.726086][ T8408]  ? ext4_file_read_iter+0x2e0/0x430
[   33.731349][ T8408]  ? __kernel_read+0x306/0x580
[   33.736095][ T8408]  ? integrity_kernel_read+0x4c/0x70
[   33.741359][ T8408]  ? ima_calc_file_hash+0x929/0x1310
[   33.746634][ T8408]  ? ima_collect_measurement+0x168/0x310
[   33.752253][ T8408]  ? process_measurement+0xa4c/0x10c0
[   33.757611][ T8408]  ? ima_file_check+0x75/0xa0
[   33.762278][ T8408]  ? path_openat+0x188a/0x20a0
[   33.767047][ T8408]  ? do_filp_open+0xbd/0x1d0
[   33.771637][ T8408]  ? do_sys_openat2+0xa3/0x250
[   33.776384][ T8408]  ? __x64_sys_openat+0xef/0x110
[   33.781303][ T8408]  ? do_syscall_64+0x39/0x80
[   33.785887][ T8408]  ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   33.791948][ T8408]  ? find_get_pages_contig+0x4a9/0x4e0
[   33.797386][ T8408]  kcsan_setup_watchpoint+0x472/0x4d0
[   33.802737][ T8408]  atime_needs_update+0x1b7/0x370
[   33.807746][ T8408]  touch_atime+0x55/0x2d0
[   33.812053][ T8408]  generic_file_buffered_read+0x945/0x9c0
[   33.817755][ T8408]  generic_file_read_iter+0x82/0x3e0
[   33.823016][ T8408]  ext4_file_read_iter+0x2e0/0x430
[   33.828182][ T8408]  __kernel_read+0x306/0x580
[   33.832761][ T8408]  integrity_kernel_read+0x4c/0x70
[   33.837871][ T8408]  ima_calc_file_hash+0x929/0x1310
[   33.842986][ T8408]  ? update_load_avg+0x1ad/0x2d0
[   33.847991][ T8408]  ? rb_insert_color+0x7e/0x310
[   33.852823][ T8408]  ? __switch_to+0x14e/0x4d0
[   33.857566][ T8408]  ? finish_task_switch+0xc0/0x2a0
[   33.862656][ T8408]  ? __schedule+0x3c1/0x580
[   33.867137][ T8408]  ? widen_string+0x3a/0x280
[   33.871706][ T8408]  ? format_decode+0x1e3/0x8a0
[   33.876447][ T8408]  ? __down_read_common+0x14e/0x510
[   33.881635][ T8408]  ? ext4_xattr_ibody_get+0x68/0x630
[   33.887258][ T8408]  ? aa_get_newest_label+0x74/0x250
[   33.892431][ T8408]  ? apparmor_capable+0xfe/0x160
[   33.897346][ T8408]  ? ext4_xattr_get+0x27d/0x580
[   33.902171][ T8408]  ? ima_match_policy+0xa83/0xab0
[   33.907171][ T8408]  ima_collect_measurement+0x168/0x310
[   33.912603][ T8408]  process_measurement+0xa4c/0x10c0
[   33.917779][ T8408]  ? lockref_put_return+0xed/0x140
[   33.922871][ T8408]  ? dquot_file_open+0x68/0x80
[   33.927610][ T8408]  ? ext4_file_open+0x186/0x560
[   33.932438][ T8408]  ? __rcu_read_unlock+0x5c/0x250
[   33.937442][ T8408]  ? fsnotify_perm+0x299/0x2e0
[   33.942532][ T8408]  ? aa_get_task_label+0x72/0xc0
[   33.947455][ T8408]  ? apparmor_task_getsecid+0x81/0xa0
[   33.952802][ T8408]  ima_file_check+0x75/0xa0
[   33.957285][ T8408]  path_openat+0x188a/0x20a0
[   33.961853][ T8408]  do_filp_open+0xbd/0x1d0
[   33.966269][ T8408]  ? _raw_spin_unlock+0x22/0x40
[   33.971096][ T8408]  ? alloc_fd+0x35d/0x3b0
[   33.975413][ T8408]  do_sys_openat2+0xa3/0x250
[   33.979982][ T8408]  ? mem_cgroup_handle_over_high+0x34/0x4d0
[   33.985854][ T8408]  __x64_sys_openat+0xef/0x110
[   33.990606][ T8408]  do_syscall_64+0x39/0x80
[   33.995011][ T8408]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   34.000881][ T8408] RIP: 0033:0x4af20a
[   34.004773][ T8408] 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
[   34.024355][ T8408] RSP: 002b:000000c00048b7a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
[   34.032786][ T8408] RAX: ffffffffffffffda RBX: 000000c00001c000 RCX: 00000000004af20a
[   34.040760][ T8408] RDX: 0000000000080002 RSI: 000000c0004d2820 RDI: ffffffffffffff9c
[   34.048887][ T8408] RBP: 000000c00048b818 R08: 0000000000000000 R09: 0000000000000000
[   34.056836][ T8408] R10: 00000000000001a4 R11: 0000000000000202 R12: ffffffffffffffff
[   34.064785][ T8408] R13: 0000000000000042 R14: 0000000000000041 R15: 0000000000000100
[   34.073701][ T8408] Kernel Offset: disabled
[   34.078020][ T8408] Rebooting in 86400 seconds..