syzbot


panic: ASan: Invalid access, 32-byte read at ADDR, UseAfterScope(f8)

Status: closed as dup on 2021/07/10 00:23
Reported-by: syzbot+b07f9ec4b5efe66cb3ad@syzkaller.appspotmail.com
First crash: 1019d, last: 1019d
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
panic: ASan: Invalid access, 8-byte read in handleevents 34 1016d 1016d

Sample crash report:
panic: ASan: Invalid access, 32-byte read at 0xfffffe0093704280, UseAfterScope(f8)
cpuid = 1
time = 1625667708
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe0093703e70
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe0093703fd0
vpanic() at vpanic+0x2c5/frame 0xfffffe00937040b0
panic() at panic+0xb5/frame 0xfffffe0093704180
__asan_loadN_noabort() at __asan_loadN_noabort+0x189/frame 0xfffffe0093704250
stop_cpus_hard() at stop_cpus_hard+0x97/frame 0xfffffe0093704310
vpanic() at vpanic+0x12e/frame 0xfffffe0093704410
panic() at panic+0xb5/frame 0xfffffe00937044d0
__asan_load8_noabort() at __asan_load8_noabort+0x36f/frame 0xfffffe0093704590
handleevents() at handleevents+0x6b/frame 0xfffffe00937045f0
hardclockintr() at hardclockintr+0x1fc/frame 0xfffffe00937046d0
ipi_bitmap_handler() at ipi_bitmap_handler+0x191/frame 0xfffffe0093704880
Xipi_intr_bitmap_handler() at Xipi_intr_bitmap_handler+0xb3/frame 0xfffffe0093704880
--- interrupt, rip = 0xffffffff81753950, rsp = 0xfffffe0093704958, rbp = 0xfffffe0093704960 ---
kasan_atomic_load_ptr() at kasan_atomic_load_ptr+0x2e0/frame 0xfffffe0093704960
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x10/frame 0xfffffe0093704970
__mtx_lock_flags() at __mtx_lock_flags+0x114/frame 0xfffffe0093704a50
userret() at userret+0x10c/frame 0xfffffe0093704b60
fork_return() at fork_return+0x23e/frame 0xfffffe0093704bb0
fork_exit() at fork_exit+0xd0/frame 0xfffffe0093704bf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0093704bf0
--- trap 0xc, rip = 0x3708fa, rsp = 0x7fffffffe428, rbp = 0x7fffffffe480 ---
KDB: enter: panic
[ thread pid 2334 tid 102406 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28f86da(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0x1f6403c855f7fcb9
rdx                        0x1
rbx                          0
rsp         0xfffffe0093703fb0
rbp         0xfffffe0093703fd0
rsi                          0
rdi         0xffffffff81799939  vprintf+0x319
r8                         0x3
r9          0xfffffe0093703b08
r10                          0
r11         0xfffffe00587a4350
r12         0xfffffe009ec29020
r13         0xfffffe0093704001
r14         0xffffffff82c3df20  .str.18
r15         0xffffffff82c3df20  .str.18
rip         0xffffffff8178d35b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28f86da(%rip)
db> show proc
Process 2334 (syz-executor.3) at 0xfffffe009f0f9538:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 1775 at 0xfffffe0093827000
 ABI: FreeBSD ELF64
 flag: 0x10000000  flag2: 0
 arguments: /root/syz-executor.3
 reaper: 0xfffffe0053d51538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe0096581000
   (map 0xfffffe0096581000)
   (map.pmap 0xfffffe00965810c0)
   (pmap 0xfffffe0096581120)
 threads: 1
102406                   Run     CPU 1                       syz-executor.3
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 2334  1775  1775     0  R       CPU 1                       syz-executor.3
 2333   789   789     0  R       (threaded)                  syz-executor.0
101018                   RunQ                                syz-executor.0
102503                   S       connec  0xfffffe00965d7840  syz-executor.0
102504                   S       uwait   0xfffffe0057fcc900  syz-executor.0
 2332   790   790     0  R       (threaded)                  syz-executor.1
102397                   RunQ                                syz-executor.1
102501                   S       connec  0xfffffe00965d70e0  syz-executor.1
102502                   S       uwait   0xfffffe00965b3680  syz-executor.1
 2331   792   792     0  R       (threaded)                  syz-executor.2
102398                   RunQ                                syz-executor.2
102498                   S       connec  0xfffffe009f555840  syz-executor.2
102500                   S       uwait   0xfffffe00965b3280  syz-executor.2
 2022     0     0     0  DL      aiordy  0xfffffe0095fb7000  [aiod4]
 2021     0     0     0  DL      aiordy  0xfffffe009eedc538  [aiod3]
 2020     0     0     0  DL      aiordy  0xfffffe009f0f9a70  [aiod2]
 2019     0     0     0  DL      aiordy  0xfffffe00965ab000  [aiod1]
 2014     1  2014    65  Ss      select  0xfffffe009ec2a940  dhclient
 1795     1  1795     0  Ss      select  0xfffffe0095f7b240  dhclient
 1791     1  1791     0  Ss      select  0xfffffe00965c7f40  dhclient
 1775   780  1775     0  Ss      nanslp  0xffffffff84052941  syz-executor.3
 1593     1  1593    65  Ss      select  0xfffffe009d90bb40  dhclient
 1547     1   790     0  S       uwait   0xfffffe0095f9e980  syz-executor.1
 1546     1   790     0  S       uwait   0xfffffe00965c7580  syz-executor.1
 1545     1   790     0  S       uwait   0xfffffe0057fcc180  syz-executor.1
 1543     1   790     0  S       uwait   0xfffffe009d90ba00  syz-executor.1
 1440     1  1440     0  Ss      select  0xfffffe0095f7b740  dhclient
 1434     1  1434     0  Ss      select  0xfffffe00965c7d40  dhclient
 1405     1  1405    65  Ss      select  0xfffffe009d90bbc0  dhclient
 1247     1  1247     0  Ss      select  0xfffffe009ec2ac40  dhclient
 1244     1  1244     0  Ss      select  0xfffffe009ec2acc0  dhclient
 1217     1  1217    65  Ss      select  0xfffffe009d90b9c0  dhclient
 1028     1  1028     0  Ss      select  0xfffffe00965c7140  dhclient
 1025     1  1025     0  Ss      select  0xfffffe00965b37c0  dhclient
  792   780   792     0  Rs                                  syz-executor.2
  790   780   790     0  Ss      nanslp  0xffffffff84052941  syz-executor.1
  789   780   789     0  Rs                                  syz-executor.0
  780   778   778     0  R       (threaded)                  syz-fuzzer
100096                   S       kqread  0xfffffe00587e8e00  syz-fuzzer
100124                   S       uwait   0xfffffe0096058e80  syz-fuzzer
100125                   S       uwait   0xfffffe0095f9e000  syz-fuzzer
100126                   S       uwait   0xfffffe0096058580  syz-fuzzer
100127                   S       uwait   0xfffffe0096058680  syz-fuzzer
100128                   S       uwait   0xfffffe0096058780  syz-fuzzer
100130                   S       uwait   0xfffffe0057fcc380  syz-fuzzer
100129                   S       uwait   0xfffffe009652da00  syz-fuzzer
100131                   RunQ                                syz-fuzzer
  778   776   778     0  Ss      pause   0xfffffe00938275e8  csh
  776   694   776     0  Rs                                  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe0056cbfcb0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00580770b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00580774b0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00580778b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe0058077cb0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe0057fcf0b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe0057fcf4b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe0057fcf8b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe0057fcfcb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff84052940  cron
  694     1   694     0  Ss      select  0xfffffe0095f9e0c0  sshd
  507     1   507     0  Ss      select  0xfffffe00938b2240  syslogd
  436     1   436     0  Ss      select  0xfffffe00587a80c0  devd
  435     1   435    65  Ss      select  0xfffffe0095f7bec0  dhclient
  350     1   350     0  Ss      select  0xfffffe00938b2140  dhclient
  347     1   347     0  Ss      select  0xfffffe00587a8040  dhclient
   23     0     0     0  DL      syncer  0xffffffff84178a40  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe0058200538  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100081                   D       qsleep  0xffffffff84176940  [bufdaemon]
100084                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100097                   D       sdflush 0xfffffe00938cdce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841aeac0  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100079                   D       psleep  0xffffffff841a25f8  [dom0]
100082                   D       launds  0xffffffff841a2604  [laundry: dom0]
100083                   D       umarcl  0xffffffff81e7afa0  [uma]
   18     0     0     0  DL      -       0xffffffff83e09ae0  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff84d693c0  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff84760d00  [pf purge]
   15     0     0     0  DL      -       0xffffffff84171dc0  [soaiod4]
    9     0     0     0  DL      -       0xffffffff84171dc0  [soaiod3]
    8     0     0     0  DL      -       0xffffffff84171dc0  [soaiod2]
    7     0     0     0  DL      -       0xffffffff84171dc0  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100044                   D       -       0xffffffff83c8f240  [doneq0]
100045                   D       -       0xffffffff83c8f1c0  [async]
100078                   D       -       0xffffffff83c8f040  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0053f8ec88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe0053e8ad80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe0053e8ad30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff8419c6a0  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100035                   D       -       0xffffffff84025f00  [g_event]
100036                   D       -       0xffffffff84025f40  [g_up]
100037                   D       -       0xffffffff84025f80  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100028                   D       -       0xfffffe0053e16e00  [thr_0]
100029                   D       -       0xfffffe0053e16e80  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100015                   I                                   [swi5: fast taskq]
100030                   I                                   [swi4: clock (0)]
100031                   I                                   [swi4: clock (1)]
100032                   I                                   [swi1: netisr 0]
100033                   I                                   [swi3: vm]
100046                   I                                   [irq24: virtio_pci0]
100047                   I                                   [irq25: virtio_pci0]
100048                   I                                   [irq26: virtio_pci0]
100049                   I                                   [irq27: virtio_pci0]
100050                   I                                   [irq28: virtio_pci1]
100051                   I                                   [irq29: virtio_pci1]
100052                   I                                   [irq30: virtio_pci1]
100053                   I                                   [irq31: virtio_pci1]
100054                   I                                   [irq32: virtio_pci1]
100059                   I                                   [irq10: virtio_pci2]
100061                   I                                   [irq1: atkbd0]
100062                   I                                   [irq12: psm0]
100063                   I                                   [swi0: uart uart++]
100071                   I                                   [swi1: pf send]
100087                   I                                   [swi1: hpts]
100088                   I                                   [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053d51538  [init]
   10     0     0     0  DL      audit_w 0xffffffff8419d640  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff84026e00  [swapper]
100005                   D       -       0xfffffe0053c0d800  [if_config_tqg_0]
100006                   D       -       0xfffffe0053c0d600  [softirq_0]
100007                   D       -       0xfffffe0053c0d400  [softirq_1]
100008                   D       -       0xfffffe0053c0d200  [if_io_tqg_0]
100009                   D       -       0xfffffe0053c0d000  [if_io_tqg_1]
100010                   D       -       0xfffffe000791b700  [pci_hp taskq]
100013                   D       -       0xfffffe000791b400  [thread taskq]
100014                   D       -       0xfffffe000791b300  [inm_free taskq]
100016                   D       -       0xfffffe000791b100  [linuxkpi_irq_wq]
100017                   D       -       0xfffffe000791b000  [kqueue_ctx taskq]
100018                   D       -       0xfffffe0053df6e00  [in6m_free taskq]
100019                   D       -       0xfffffe0053df6d00  [aiod_kick taskq]
100020                   D       -       0xfffffe0053df6c00  [linuxkpi_short_wq_0]
100021                   D       -       0xfffffe0053df6c00  [linuxkpi_short_wq_1]
100022                   D       -       0xfffffe0053df6c00  [linuxkpi_short_wq_2]
100023                   D       -       0xfffffe0053df6c00  [linuxkpi_short_wq_3]
100024                   D       -       0xfffffe0053df6b00  [linuxkpi_long_wq_0]
100025                   D       -       0xfffffe0053df6b00  [linuxkpi_long_wq_1]
100026                   D       -       0xfffffe0053df6b00  [linuxkpi_long_wq_2]
100027                   D       -       0xfffffe0053df6b00  [linuxkpi_long_wq_3]
100034                   D       -       0xfffffe0053df6a00  [firmware taskq]
100038                   D       -       0xfffffe0053df6900  [crypto_0]
100039                   D       -       0xfffffe0053df6900  [crypto_1]
100055                   D       -       0xfffffe0053df6700  [vtnet0 rxq 0]
100056                   D       -       0xfffffe0053df6600  [vtnet0 txq 0]
100057                   D       -       0xfffffe0053df6500  [vtnet0 rxq 1]
100058                   D       -       0xfffffe0053df6400  [vtnet0 txq 1]
100060                   D       vtbslp  0xfffffe0056c9e480  [virtio_balloon]
100064                   D       -       0xfffffe0053df6300  [mca taskq]
100069                   D       -       0xffffffff82c44ea0  [deadlkres]
100074                   D       -       0xfffffe0057fc6e00  [acpi_task_0]
100075                   D       -       0xfffffe0057fc6e00  [acpi_task_1]
100076                   D       -       0xfffffe0057fc6e00  [acpi_task_2]
100077                   D       -       0xfffffe0053df6800  [CAM taskq]
db> show all locks
Process 2333 (syz-executor.0) thread 0xfffffe009ec26c80 (101018)
shared rw vm object (vm object) r = 0 (0xfffffe000782e210) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_fault.c:1332
shared sx vm map (user) (vm map (user)) r = 0 (0xfffffe009f0e5a50) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_map.c:4935
Process 780 (syz-fuzzer) thread 0xfffffe009652aac0 (100131)
exclusive sleep mutex pipe mutex (pipe mutex) r = 0 (0xfffffe009382b5a8) locked @ /syzkaller/managers/main/kernel/sys/kern/sys_pipe.c:1094
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4216         4338K         4244
          tcp_hpts            5         3201K            5
         sysctloid        34288         2025K        34355
             vtbuf           24         1968K           46
              kobj          326         1304K          486
            newblk            9         1026K         3903
          vfscache            3         1025K            3
               pcb          122          637K         3424
          inodedep           20          520K         1488
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          153          315K         2417
              vmem            3          274K            5
          filedesc           26          201K         2666
            acpica         1674          184K        54806
         vnet_data            1          168K            1
           tidhash            3          141K            3
            linker          357          140K          400
           pagedep            9          130K         1353
        tfo_ccache            1          128K            1
            DEVFS1          107          107K          124
               sem            4          106K            4
               BPF           46           88K           54
               bus          986           80K         3469
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          510           64K          510
              umtx          374           47K          374
           kdtrace          233           45K         4840
         sctp_stro           44           44K          492
         sctp_atcl           88           33K         1990
              temp           35           33K         2693
         hostcache            1           32K            1
               shm            1           32K           18
            DEVFS3          126           32K          136
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
            ifaddr           71           21K           76
        DEVFS_RULE           56           20K           56
          routetbl          186           18K          673
         ufs_mount            5           17K            6
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
           lltable           45           14K          152
            bus-sc           33           14K         1684
         sctp_atky          134           14K         2526
       ether_multi          157           13K          195
            KTRACE          100           13K          100
             ifnet            7           13K            7
              kenv           95           12K           95
      eventhandler          133           12K          133
         CAM queue            5           11K         1528
              rman           84           10K          425
              GEOM           60           10K          489
         in6_multi           71            9K           81
         bmsafemap            3            9K         1451
              UART           12            9K           12
           devstat            4            9K            4
         sctp_timw           32            8K           32
              ksem            1            8K           11
               rpc            2            8K            2
             shmfd            1            8K           12
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          236            8K          294
            kqueue           73            7K         2345
              cred           26            7K          291
         taskqueue           60            7K           60
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           24            6K          477
            DEVFSP           80            5K          370
       ufs_dirhash           24            5K           24
          pf_ifnet           11            5K           48
           pwddesc           71            5K         2343
               UMA          270            5K          270
           session           35            5K           55
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           85
           acpisem           28            4K           28
             lockf           32            4K           67
             hhook           15            4K           17
       fpukern_ctx            3            3K            3
             selfd           48            3K        48480
         proc-args           52            3K          718
            dirrem           11            3K         1359
          terminal           11            3K           11
            select           19            3K          119
           uidinfo            3            3K           15
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
          sctp_ifa           15            2K           17
            ip6ndp           12            2K           17
            Unitno           27            2K           63
           CAM XPT           22            2K          543
          in_multi            6            2K            9
         sctp_athm           88            2K         2017
          sctp_map           88            2K          984
          freefile           11            2K         1356
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
          freework            5            2K         1882
           softdep            1            1K            1
             mkdir            8            1K         2622
          freeblks            4            1K         1378
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           72
      NFSD session            1            1K            1
        CAM periph            4            1K          271
          sctp_ifn            6            1K           17
             ipsec            3            1K            3
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
       inpcbpolicy           21            1K         1521
            crypto            4            1K          186
 encap_export_host           12            1K           12
          procdesc            5            1K           20
         newdirblk            4            1K         1311
            diradd            4            1K         1399
              pfil            4            1K            4
              cdev            2            1K            2
               osd           11            1K          647
           pf_osfp            4            1K            4
    chacha20random            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            vnodes            1            1K            1
           CAM SIM            2            1K            2
              ktls            1            1K            1
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            prison            6            1K            6
       lkpikmalloc            5            1K            6
            soname            7            1K         5497
        aesni_data            2            1K            2
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
             xform            2            1K          533
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          pmchooks            1            1K            1
          nexusdev            7            1K            7
          filecaps            5            1K          134
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           47
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
        sctp_mcore            0            0K            0
        sctp_socko            0            0K          892
         sctp_iter            0            0K           18
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K            2
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K           16
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320     987     1164530       0     254   38121472        0
           tcp_log    416       0   30231      166720       0     254   12576096        0
              mbuf    256    8925    1050     2105878       0     254    2553600        0
              pbuf   2624       0     825           0       0       2    2164800        0
        RADIX NODE    144   14102     369      112522       0      62    2083824        0
          BUF TRIE    144     230   11530        1955       0      62    1693440        0
    ertt_txseginfo     40   30581   10223      265720       0     254    1632160        0
        malloc-384    384    4220      30        4327       0      30    1632000        0
        malloc-128    128   11308      38       11481       0     126    1452288        0
       malloc-4096   4096     327       3         539       0       2    1351680        0
       UMA Slabs 0    112   10635      18       10635       0     126    1193136        0
      mbuf_cluster   2048     570       2         570       0     254    1171456        0
         vmem btag     56   20402      21       20402       0     254    1143688        0
       tcp_bbr_map    128    2524    3955       74362       0     126     829312        0
        256 Bucket   2048     298      22       20196       0       8     655360        0
         FFS inode   1160     517      29        1873       0       8     633360        0
       malloc-4096   4096      94       4        2894       0       2     401408        0
         VM OBJECT    264    1370     100       36239       0      30     388080        0
            lkpimm    160       1    2324           1       0      62     372000        0
          lkpicurr    160       2    2323           2       0      62     372000        0
            THREAD   1808     161      26        2504       0       8     338096        0
         malloc-64     64    4179     420       53008       0     254     294336        0
             VNODE    448     555      75        1913       0      30     282240        0
      malloc-16384  16384      13       4        1331       0       1     278528        0
      malloc-65536  65536       4       0           4       0       1     262144        0
         malloc-16     16   14110     140       15740       0     254     228000        0
            DEVCTL   1024       0     220         163       0       0     225280        0
        malloc-256    256     137     703        8903       0      62     215040        0
         MAP ENTRY     96    1897     287      129265       0     126     209664        0
      malloc-65536  65536       1       2          16       0       1     196608        0
         UMA Zones    768     242       2         242       0      16     187392        0
         malloc-32     32    5356     188        5590       0     254     177408        0
         sctp_asoc   2288      44      31         492       0     254     171600        0
        malloc-128    128    1264      38       30549       0     126     166656        0
      malloc-32768  32768       0       5         178       0       1     163840        0
        malloc-128    128    1155      23        5094       0     126     150784        0
       malloc-2048   2048      46      26        1446       0       8     147456        0
       mbuf_packet    256      49     521        5940       0     254     145920        0
       FFS2 dinode    256     517      38        1873       0      62     142080        0
       S VFS Cache    104    1027     299        2445       0     126     137904        0
           VMSPACE   2544      44      10        2309       0       4     137376        0
            socket    944      43     101        4380       0     254     135936        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2         376       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
            clpbuf   2624       0      48         109       0      16     125952        0
        128 Bucket   1024      82      41        1500       0      16     125952        0
       malloc-1024   1024     110       6         127       0      16     118784        0
          ksiginfo    112      66     978        2716       0     126     116928        0
              PROC   1336      70      11        2334       0       8     108216        0
           sctp_ep   1280      44      40        1442       0     254     107520        0
       malloc-2048   2048       7      43        3914       0       8     102400        0
         filedesc0   1072      71      20        2343       0       8      97552        0
        malloc-256    256     175     200        5446       0      62      96000        0
          UMA Kegs    384     227       6         227       0      30      89472        0
        malloc-384    384      19     201        1487       0      30      84480        0
      malloc-16384  16384       4       1         179       0       1      81920        0
       malloc-1024   1024      52      28        1008       0      16      81920        0
        malloc-128    128     314     275        1817       0     126      75392        0
       malloc-8192   8192       5       4         134       0       1      73728        0
      malloc-65536  65536       0       1           8       0       1      65536        0
      malloc-32768  32768       0       2         132       0       1      65536        0
      malloc-32768  32768       2       0           2       0       1      65536        0
      malloc-32768  32768       0       2          11       0       1      65536        0
       malloc-8192   8192       6       2           8       0       1      65536        0
       malloc-2048   2048       4      28         511       0       8      65536        0
             g_bio    408       0     160       12527       0      30      65280        0
        sctp_raddr    736      44      44         566       0     254      64768        0
             tcpcb   1080       7      49         636       0     254      60480        0
        sctp_chunk    152      47     343         509       0     254      59280        0
       malloc-8192   8192       5       2           7       0       1      57344        0
        malloc-384    384      88      52        2026       0      30      53760        0
       malloc-4096   4096      12       1          23       0       2      53248        0
         64 Bucket    512      85      19        4856       0      30      53248        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-8192   8192       5       1           7       0       1      49152        0
        malloc-256    256     151      29         276       0      62      46080        0
         32 Bucket    256      58     122        8358       0      62      46080        0
         malloc-64     64     583     110       20325       0     254      44352        0
         tcp_inpcb    488      10      78         636       0     254      42944        0
            pcpu-8      8    4723     397        5773       0     254      40960        0
        malloc-384    384      75      25         193       0      30      38400        0
        malloc-256    256     114      36        1127       0      62      38400        0
        malloc-256    256      93      57        1855       0      62      38400        0
      tcp_rack_pcb    832       0      45         177       0      16      37440        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36       21481       0      16      36864        0
       malloc-4096   4096       9       0           9       0       2      36864        0
       malloc-2048   2048      12       6         220       0       8      36864        0
         malloc-64     64     478      89         690       0     254      36288        0
     udplite_inpcb    488       0      72         580       0     254      35136        0
      malloc-32768  32768       1       0           1       0       1      32768        0
       malloc-1024   1024      13      19        1533       0      16      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
             Files     80     235     165       13784       0     126      32000        0
       tcp_bbr_pcb    832       3      33         342       0      16      29952        0
         TURNSTILE    136     188      22         188       0      62      28560        0
             KNOTE    160      28     147       99599       0      62      28000        0
            ttyinq    160     135      40         300       0      62      28000        0
              pipe    744      23      12         472       0      16      26040        0
       malloc-8192   8192       2       1           4       0       1      24576        0
       malloc-4096   4096       3       3        1504       0       2      24576        0
       malloc-2048   2048       5       7         227       0       8      24576        0
          8 Bucket     80      53     247        1531       0     126      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
       malloc-2048   2048       2       8         242       0       8      20480        0
       malloc-1024   1024      17       3          17       0      16      20480        0
               PWD     32      22     608        1408       0     254      20160        0
         malloc-64     64     230      85        4840       0     254      20160        0
         malloc-64     64      70     245        1919       0     254      20160        0
         malloc-32     32     304     326        7613       0     254      20160        0
        malloc-128    128       7     148         385       0     126      19840        0
        SLEEPQUEUE     88     188      36         188       0     126      19712        0
         udp_inpcb    488       6      34         259       0     254      19520        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-256    256      40      35         358       0      62      19200        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       2       2          85       0       2      16384        0
       malloc-4096   4096       2       2           6       0       2      16384        0
       malloc-2048   2048       2       6          26       0       8      16384        0
       malloc-1024   1024      11       5          11       0      16      16384        0
        malloc-512    512      10      22         203       0      30      16384        0
      tcp_rack_map    112       0     144         489       0     126      16128        0
      vtnet_tx_hdr     24       2     666      754317       0     254      16032        0
        malloc-128    128      89      35        1432       0     126      15872        0
        malloc-384    384      36       4          41       0      30      15360        0
        malloc-384    384      34       6          34       0      30      15360        0
        malloc-256    256      29      31        1523       0      62      15360        0
       malloc-1024   1024       8       4           9       0      16      12288        0
        malloc-512    512      12      12          14       0      30      12288        0
         malloc-64     64     158      31         169       0     254      12096        0
         malloc-32     32     161     217         280       0     254      12096        0
         malloc-32     32     115     263        2559       0     254      12096        0
         16 Bucket    144      53      31         392       0      62      12096        0
         malloc-16     16     346     404         619       0     254      12000        0
              kenv    258      15      30        1044       0      30      11610        0
     routing nhops    256      27      18          39       0      62      11520        0
             unpcb    256      20      25        1372       0     254      11520        0
        malloc-256    256      36       9        1119       0      62      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-1024   1024       2       6          15       0      16       8192        0
       malloc-1024   1024       1       7          42       0      16       8192        0
        malloc-512    512       3      13          73       0      30       8192        0
        malloc-512    512       4      12           4       0      30       8192        0
        malloc-512    512       0      16          81       0      30       8192        0
           rtentry    176      31      15          39       0      62       8096        0
             tcptw     88       3      89           3       0     254       8096        0
              PGRP     88      35      57          55       0     126       8096        0
          rl_entry     40      72     130          72       0     254       8080        0
sctp_stream_msg_out    112       9      63         137       0     254       8064        0
        sctp_laddr     48       4     164         411       0     254       8064        0
             udpcb     32       6     246         839       0     254       8064        0
              ertt     72       7     105         636       0     126       8064        0
         malloc-64     64      12     114         129       0     254       8064        0
         malloc-64     64      87      39         377       0     254       8064        0
         malloc-32     32     197      55         257       0     254       8064        0
         malloc-32     32      21     231          69       0     254       8064        0
         malloc-32     32      38     214         922       0     254       8064        0
          4 Bucket     48       7     161          93       0     254       8064        0
          2 Bucket     32      53     199         754       0     254       8064        0
         malloc-16     16       9     491         651       0     254       8000        0
         malloc-16     16      16     484          19       0     254       8000        0
         malloc-16     16     187     313        1417       0     254       8000        0
         malloc-16     16      32     468       27106       0     254       8000        0
         malloc-16     16      96     404        2139       0     254       8000        0
        malloc-128    128      25      37         152       0     126       7936        0
        malloc-128    128      10      52         209       0     126       7936        0
        sctp_readq    152       0      52          26       0     254       7904        0
           cryptop    280       0      28          40       0      30       7840        0
             ripcb    488       5      11          46       0     254       7808        0
        malloc-384    384       1      19         349       0      30       7680        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       7      55          41       0     126       6448        0
         domainset     40       0     126          26       0     254       5040        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-2048   2048       1       1           1       0       8       4096        0
        malloc-512    512       1       7           2       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
           pf tags    104       0      39           5       0     126       4056        0
   sctp_asconf_ack     48       0      84           1       0     254       4032        0
          tcpreass     48       0      84          47       0     254       4032        0
          sackhole     32       0     126           1       0     254       4032        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
              AIOP     32       4     122           4       0     254       4032        0
               AIO    208       0      19           1       0      62       3952        0
       UMA Slabs 1    176       9      13           9       0      62       3872        0
             AIOCB    552       0       7           2       0      16       3864        0
        malloc-384    384       1       9           2       0      30       3840        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
           SMR CPU     32       3      60           3       0     254       2016        0
        SMR SHARED     24       3      60           3       0     254       1512        0
       FFS1 dinode    128       0       0           0       0     126          0        0
            da_ccb    544       0       0           0       0      16          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    304       0       0           0       0       0          0        0
          pf mtags     48       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
            itimer    352       0       0           0       0      30          0        0
            AIOLIO    272       0       0           0       0      30          0        0
        TMPFS node    224       0       0           0       0      62          0        0
           NCLNODE    584       0       0           0       0      16          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
  linux_dma_object     24       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/07/07 14:20 freebsd-src da2f833f7a0b 4846d5c1 console log report ci-freebsd-main panic: ASan: Invalid access, 32-byte read at ADDR, UseAfterScope(f8)
* Struck through repros no longer work on HEAD.