syzbot


panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)

Status: fixed on 2021/08/31 00:25
Reported-by: syzbot+83b11c1d24579524d0a3@syzkaller.appspotmail.com
Fix commit: 36226163fa48 x86: Mark the trapframe as initialized in ipi_bitmap_handler()
First crash: 995d, last: 993d
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd panic: ASan: Invalid access, NUM-byte read at ADDR, StackMiddle(f2) 1 771d 771d 0/2 auto-closed as invalid on 2022/05/17 14:14
freebsd panic: ASan: Invalid access, NUM-byte read at ADDR, StackMiddle(f2) (2) C 5 183d 522d 0/2 upstream: reported C repro on 2022/10/24 03:22

Sample crash report:
panic: ASan: Invalid access, 8-byte read at 0xfffffe009aa4c520, StackMiddle(f2)
cpuid = 0
time = 1625854003
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe009aa4bf30
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe009aa4c090
vpanic() at vpanic+0x2c5/frame 0xfffffe009aa4c170
panic() at panic+0xb5/frame 0xfffffe009aa4c230
__asan_load8_noabort() at __asan_load8_noabort+0x36f/frame 0xfffffe009aa4c2f0
handleevents() at handleevents+0x6b/frame 0xfffffe009aa4c350
hardclockintr() at hardclockintr+0x1fc/frame 0xfffffe009aa4c430
ipi_bitmap_handler() at ipi_bitmap_handler+0x191/frame 0xfffffe009aa4c5e0
Xipi_intr_bitmap_handler() at Xipi_intr_bitmap_handler+0xb3/frame 0xfffffe009aa4c5e0
--- interrupt, rip = 0xffffffff8173b078, rsp = 0xfffffe009aa4c6b0, rbp = 0xfffffe009aa4c770 ---
kasan_copyinstr() at kasan_copyinstr+0x108/frame 0xfffffe009aa4c770
exec_copyin_args() at exec_copyin_args+0x20f/frame 0xfffffe009aa4c8b0
sys_execve() at sys_execve+0x117/frame 0xfffffe009aa4c9f0
amd64_syscall() at amd64_syscall+0x425/frame 0xfffffe009aa4cbf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe009aa4cbf0
--- syscall (59, FreeBSD ELF64, sys_execve), rip = 0x8003ed3ca, rsp = 0x7fffffffe758, rbp = 0x7fffffffe8a0 ---
KDB: enter: panic
[ thread pid 1734 tid 100473 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28f9d2a(%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         0x74fa45ccffd300e6
rdx                        0x1
rbx                          0
rsp         0xfffffe009aa4c070
rbp         0xfffffe009aa4c090
rsi                          0
rdi         0xffffffff8179b2e9  vprintf+0x319
r8                         0x3
r9          0xfffffe009aa4bbc8
r10                          0
r11                0x80076b998
r12         0xfffffe005862c560
r13         0xfffffe009aa4c001
r14         0xffffffff82c416a0  .str.18
r15         0xffffffff82c416a0  .str.18
rip         0xffffffff8178ed0b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28f9d2a(%rip)
db> show proc
Process 1734 (sh) at 0xfffffe008f8aba70:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 1733 at 0xfffffe009b6eaa70
 ABI: FreeBSD ELF64
 flag: 0x10000010  flag2: 0
 arguments: /bin/sh /sbin/dhclient-script
 reaper: 0xfffffe0053d51538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe009258b000
   (map 0xfffffe009258b000)
   (map.pmap 0xfffffe009258b0c0)
   (pmap 0xfffffe009258b120)
 threads: 1
100473                   Run     CPU 0                       sh
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1734  1733   436     0  RV      CPU 0                       sh
 1733  1713   436     0  D       ppwait  0xfffffe008f8abf58  sh
 1732  1717  1717     0  R       (threaded)                  syz-executor.3
100097                   RunQ                                syz-executor.3
101247                   S       connec  0xfffffe009b3c3bf0  syz-executor.3
101250                   S       sbwait  0xfffffe009259b1c4  syz-executor.3
101251                   RunQ                                syz-executor.3
 1731  1718  1718     0  R       (threaded)                  syz-executor.0
100805                   RunQ                                syz-executor.0
101246                   S       connec  0xfffffe009b85b840  syz-executor.0
101248                   S       uwait   0xfffffe009ac81e00  syz-executor.0
101249                   S       uwait   0xfffffe00925d0b00  syz-executor.0
 1718   780  1718     0  Rs                                  syz-executor.0
 1717   780  1717     0  Rs                                  syz-executor.3
 1716     1  1716     0  Ss      select  0xfffffe00925d9240  dhclient
 1713  1706   436     0  S       wait    0xfffffe009258a538  dhclient
 1706   436   436     0  S       wait    0xfffffe009259c538  sh
 1666     1  1569     0  S       uwait   0xfffffe008f8a7a00  syz-executor.2
 1658     1  1569     0  S       uwait   0xfffffe009ac81a00  syz-executor.2
 1651     1  1569     0  S       uwait   0xfffffe009ac81f00  syz-executor.2
 1640     1  1569     0  S       uwait   0xfffffe0091f2aa80  syz-executor.2
 1635     1  1569     0  S       uwait   0xfffffe0091f2a580  syz-executor.2
  780   778   778     0  R       (threaded)                  syz-fuzzer
100112                   D       vm map  0xfffffe0092056a50  syz-fuzzer
100123                   D       vm map  0xfffffe0092056a50  syz-fuzzer
100124                   S       uwait   0xfffffe0091fa2500  syz-fuzzer
100125                   S       uwait   0xfffffe0091fa2600  syz-fuzzer
100126                   S       uwait   0xfffffe0091fa2700  syz-fuzzer
100127                   S       uwait   0xfffffe009251ca00  syz-fuzzer
100128                   S       uwait   0xfffffe009251cb00  syz-fuzzer
100129                   S       uwait   0xfffffe0058630d00  syz-fuzzer
100474                   S       uwait   0xfffffe008f8a7d00  syz-fuzzer
101122                   RunQ                                syz-fuzzer
  778   776   778     0  Ss      pause   0xfffffe00920755e8  csh
  776   694   776     0  Ss      select  0xfffffe0091fa2240  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe0056fe0cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00583e90b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00583e94b0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00583e98b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00583e9cb0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00583910b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00583914b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00583918b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe0058391cb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff84055901  cron
  694     1   694     0  Ss      select  0xfffffe00586300c0  sshd
  507     1   507     0  Ss      select  0xfffffe0091f2a4c0  syslogd
  436     1   436     0  Ss      wait    0xfffffe008fa85a70  devd
  435     1   435    65  Ss      select  0xfffffe0091f2a240  dhclient
  350     1   350     0  Ss      select  0xfffffe0091f2a1c0  dhclient
  347     1   347     0  Ss      select  0xfffffe00586305c0  dhclient
   23     0     0     0  DL      syncer  0xffffffff8417ba40  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe005862aa70  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100083                   D       qsleep  0xffffffff84179940  [bufdaemon]
100086                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100098                   D       sdflush 0xfffffe008f8c4ce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841b1c80  [vmdaemon]
   19     0     0     0  LL      (threaded)                  [pagedaemon]
100081                   L      *pmap    0xfffffe005838af00  [dom0]
100084                   D       launds  0xffffffff841a57c4  [laundry: dom0]
100085                   D       umarcl  0xffffffff81e7e510  [uma]
   18     0     0     0  DL      -       0xffffffff83e0caa0  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff84d423c0  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff84742d30  [pf purge]
   15     0     0     0  DL      -       0xffffffff84174dc0  [soaiod4]
    9     0     0     0  DL      -       0xffffffff84174dc0  [soaiod3]
    8     0     0     0  DL      -       0xffffffff84174dc0  [soaiod2]
    7     0     0     0  DL      -       0xffffffff84174dc0  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100046                   D       -       0xffffffff83c92240  [doneq0]
100047                   D       -       0xffffffff83c921c0  [async]
100080                   D       -       0xffffffff83c92040  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056aadc88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe00541abd80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe00541abd30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff8419f860  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100037                   D       -       0xffffffff84028ec0  [g_event]
100038                   D       -       0xffffffff84028f00  [g_up]
100039                   D       -       0xffffffff84028f40  [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]
100010                   I                                   [swi6: task queue]
100011                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100030                   I                                   [swi1: netisr 0]
100031                   I                                   [swi3: vm]
100032                   I                                   [swi4: clock (0)]
100033                   I                                   [swi4: clock (1)]
100034                   I                                   [swi1: hpts]
100035                   I                                   [swi1: hpts]
100048                   I                                   [irq24: virtio_pci0]
100049                   I                                   [irq25: virtio_pci0]
100050                   I                                   [irq26: virtio_pci0]
100051                   I                                   [irq27: virtio_pci0]
100052                   I                                   [irq28: virtio_pci1]
100053                   I                                   [irq29: virtio_pci1]
100054                   I                                   [irq30: virtio_pci1]
100055                   I                                   [irq31: virtio_pci1]
100056                   I                                   [irq32: virtio_pci1]
100061                   I                                   [irq10: virtio_pci2]
100063                   I                                   [irq1: atkbd0]
100064                   I                                   [irq12: psm0]
100065                   I                                   [swi0: uart uart++]
100073                   I                                   [swi1: pf send]
   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 0xffffffff841a0800  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff84029dc0  [swapper]
100005                   D       -       0xfffffe0053c0d800  [softirq_0]
100006                   D       -       0xfffffe0053c0d600  [softirq_1]
100007                   D       -       0xfffffe0053c0d400  [if_io_tqg_0]
100008                   D       -       0xfffffe0053c0d200  [if_io_tqg_1]
100009                   D       -       0xfffffe0053c0d000  [if_config_tqg_0]
100012                   D       -       0xfffffe000791a500  [thread taskq]
100013                   D       -       0xfffffe000791a400  [inm_free taskq]
100015                   D       -       0xfffffe000791a200  [kqueue_ctx taskq]
100016                   D       -       0xfffffe000791a100  [linuxkpi_irq_wq]
100017                   D       -       0xfffffe000791a000  [aiod_kick taskq]
100018                   D       -       0xfffffe0053df6e00  [in6m_free taskq]
100019                   D       -       0xfffffe0053df6d00  [pci_hp 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]
100036                   D       -       0xfffffe0053df6a00  [firmware taskq]
100040                   D       -       0xfffffe0053df6900  [crypto_0]
100041                   D       -       0xfffffe0053df6900  [crypto_1]
100057                   D       -       0xfffffe0053df6700  [vtnet0 rxq 0]
100058                   D       -       0xfffffe0053df6600  [vtnet0 txq 0]
100059                   D       -       0xfffffe0053df6500  [vtnet0 rxq 1]
100060                   D       -       0xfffffe0053df6400  [vtnet0 txq 1]
100062                   D       vtbslp  0xfffffe0056fc0380  [virtio_balloon]
100066                   D       -       0xfffffe0053df6300  [mca taskq]
100071                   D       -       0xffffffff82c48620  [deadlkres]
100076                   D       -       0xfffffe0058390e00  [acpi_task_0]
100077                   D       -       0xfffffe0058390e00  [acpi_task_1]
100078                   D       -       0xfffffe0058390e00  [acpi_task_2]
100079                   D       -       0xfffffe0053df6800  [CAM taskq]
 1569   780  1569     0  Z                                   syz-executor.2
db> show all locks
Process 1732 (syz-executor.3) thread 0xfffffe008f8a3c80 (100097)
exclusive sleep mutex umtxql (umtxql) r = 0 (0xffffffff8407ca40) locked @ /syzkaller/managers/main/kernel/sys/kern/kern_umtx.c:946
Process 780 (syz-fuzzer) thread 0xfffffe009b71b3a0 (101122)
exclusive rw pmap pv list (pmap pv list) r = 0 (0xfffffe000775e840) locked @ /syzkaller/managers/main/kernel/sys/amd64/amd64/pmap.c:5667
exclusive sleep mutex pmap (pmap) r = 0 (0xfffffe009ac5cb10) locked @ /syzkaller/managers/main/kernel/sys/amd64/amd64/pmap.c:7714
exclusive sleep mutex pmap (pmap) r = 0 (0xfffffe0092056b10) locked @ /syzkaller/managers/main/kernel/sys/amd64/amd64/pmap.c:7713
exclusive sx vm map (user) (vm map (user)) r = 0 (0xfffffe009ac5ca50) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_map.c:4272
exclusive sx vm map (user) (vm map (user)) r = 0 (0xfffffe0092056a50) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_map.c:4268
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4216         4338K         4244
          tcp_hpts            6         3201K            6
         sysctloid        34320         2027K        34387
             vtbuf           24         1968K           46
              kobj          326         1304K          486
            newblk           18         1029K         2102
          vfscache            3         1025K            3
               pcb          108          629K         1539
          inodedep          109          553K          771
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
              vmem            3          274K            6
           subproc          134          261K         1811
            acpica         1674          184K        54806
         vnet_data            1          168K            1
          filedesc           20          153K         1347
           tidhash            3          141K            3
            linker          357          140K          415
           pagedep           17          132K          648
        tfo_ccache            1          128K            1
            DEVFS1          107          107K          124
               sem            4          106K            4
               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          352           44K          352
           kdtrace          216           43K         2988
         sctp_stro           36           36K          327
              temp           35           33K         2873
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          126           32K          136
               msg            4           30K            4
         sctp_atcl           77           29K         1019
        gtaskqueue           18           26K           18
          routetbl          429           26K         1514
            dirrem           95           24K          683
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
            ifaddr           67           19K           89
               BPF           14           19K           38
         ufs_mount            5           17K            6
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
            bus-sc           33           14K         1684
           lltable           43           14K           98
            KTRACE          100           13K          104
             ifnet            7           13K            7
              kenv           95           12K           95
      eventhandler          133           12K          133
       ether_multi          139           12K          360
         CAM queue            5           11K         1528
              rman           84           10K          425
          freefile           78           10K          662
              GEOM           60           10K          489
         in6_multi           73            9K          161
         bmsafemap            2            9K          756
              UART           12            9K           12
           devstat            4            9K            4
         sctp_timw           32            8K           32
              ksem            1            8K            1
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          236            8K          294
         taskqueue           60            7K           60
            sglist            5            7K            5
           CAM DEV            3            6K          510
            kqueue           60            6K         1743
              cred           22            6K          266
            plimit           20            5K          496
         sctp_atky          113            5K         1400
       ufs_dirhash           24            5K           24
          pf_ifnet           11            5K           51
               UMA          270            5K          270
                vt           11            5K           11
           pf_rule            2            4K           10
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
           pwddesc           57            4K         1735
           acpisem           28            4K           28
            DEVFSP           55            4K          270
            ip6ndp           18            4K           32
             hhook           15            4K           17
       fpukern_ctx            3            3K            3
          kcovinfo           48            3K          170
           session           23            3K           59
          terminal           11            3K           11
             lockf           25            3K           82
          sctp_ifa           21            3K           32
             mkdir           19            3K         1250
         proc-args           43            3K          796
           uidinfo            3            3K           10
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
         newdirblk           14            2K          625
             selfd           28            2K        40478
            Unitno           27            2K           47
           CAM XPT           22            2K          543
            diradd           11            2K          718
       ipsecpolicy            2            2K            2
          in_multi            5            2K           14
           acpidev           20            2K           20
         sctp_athm           77            2K         1077
          sctp_map           72            2K          646
               msi            9            2K            9
             clone            9            2K            9
            select            9            2K          102
               tun            7            2K            7
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K           14
       vnodemarker            2            1K           38
      NFSD session            1            1K            1
        CAM periph            4            1K          271
             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          907
          sctp_ifn            5            1K           32
           tcp_fsb            5            1K           67
            crypto            4            1K           19
 encap_export_host           12            1K           12
          freework            3            1K          979
          freeblks            2            1K          690
              pfil            4            1K            4
               osd           15            1K          308
              cdev            2            1K            2
    chacha20random            1            1K            1
         sctp_aadr            5            1K           29
           pf_osfp            3            1K            3
      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
          procdesc            2            1K           22
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            prison            6            1K            6
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
            soname            6            1K         4428
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
             xform            2            1K          141
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          pmchooks            1            1K            1
          nexusdev            7            1K            7
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           50
          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
          filecaps            1            1K          131
            mqdata            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K          508
         sctp_iter            0            0K           34
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K            1
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K           33
         sctp_stri            0            0K          110
            tcp_do            0            0K            0
        cubic data            0            0K           16
          chd data            0            0K            0
          cdg data            0            0K            0
        dctcp data            0            0K            8
         htcp data            0            0K            0
        vegas data            0            0K            0
          pf_table            0            0K           24
           pf_altq            0            0K            0
           pf_temp            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
        madt_table            0            0K            2
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320    1717     1267158       0     254   41111552        0
           tcp_log    416      40   14963       60150       0     254    6241248        0
              mbuf    256    8665    4160     2173341       0     254    3283200        0
        RADIX NODE    144   12981    2050      130883       0      63    2164464        0
              pbuf   2624       0     794           0       0       2    2083456        0
          BUF TRIE    144     193   11567        1481       0      62    1693440        0
        malloc-384    384    4212      18        4267       0      30    1624320        0
        malloc-128    128   11321      25       11509       0     126    1452288        0
       malloc-4096   4096     327       4         528       0       2    1355776        0
       UMA Slabs 0    112   11361      12       11361       0     126    1273776        0
      mbuf_cluster   2048     570       2         570       0     254    1171456        0
         vmem btag     56   19110     161       19160       0     254    1079176        0
    ertt_txseginfo     40    2589   15490      207104       0     254     723160        0
         FFS inode   1160     528      18        1190       0       8     633360        0
        256 Bucket   2048     269      23       19476       0       8     598016        0
       tcp_bbr_map    128    1406    2345       33101       0     126     480128        0
            lkpimm    160       1    2324           1       0      62     372000        0
          lkpicurr    160       2    2323           2       0      62     372000        0
         VM OBJECT    264    1140     180       27616       0      30     348480        0
       malloc-4096   4096      65      18        2286       0       2     339968        0
            THREAD   1808     156      20        1251       0       8     318208        0
         malloc-64     64    4144     455       45142       0     254     294336        0
             VNODE    448     566      73        1230       0      30     286272        0
      malloc-16384  16384      10       7         681       0       1     278528        0
      malloc-65536  65536       4       0           4       0       1     262144        0
         malloc-16     16   14103     397       15171       0     254     232000        0
      malloc-32768  32768       0       7         151       0       1     229376        0
            DEVCTL   1024      67     153         211       0       0     225280        0
       malloc-2048   2048       4      96         511       0       8     204800        0
      malloc-65536  65536       1       2           9       0       1     196608        0
      malloc-32768  32768       0       6         466       0       1     196608        0
         UMA Zones    768     242       2         242       0      16     187392        0
        malloc-256    256     218     502        4808       0      62     184320        0
         MAP ENTRY     96    1445     445       93218       0     126     181440        0
         malloc-32     32    5361     183        5592       0     254     177408        0
        malloc-128    128    1259      43       29737       0     126     166656        0
        malloc-128    128    1127      51        3794       0     126     150784        0
       mbuf_packet    256      12     558        3378       0     254     145920        0
       S VFS Cache    104    1063     302        1798       0     126     141960        0
       FFS2 dinode    256     528      12        1190       0      62     138240        0
         sctp_asoc   2288      36      24         323       0     254     137280        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2         342       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
       malloc-2048   2048      43      21         636       0       8     131072        0
           VMSPACE   2544      34      14        1713       0       4     122112        0
       malloc-1024   1024     110       6         127       0      16     118784        0
          ksiginfo    112      60     984        3275       0     126     116928        0
       malloc-2048   2048       7      47        3966       0       8     110592        0
        128 Bucket   1024      75      32        1499       0      16     109568        0
            socket    944      43      69        2940       0     254     105728        0
              PROC   1336      58      17        1735       0       8     100200        0
        malloc-256    256     169     206        3057       0      62      96000        0
       malloc-8192   8192       5       6         135       0       1      90112        0
          UMA Kegs    384     227       6         227       0      30      89472        0
         filedesc0   1072      57      20        1735       0       8      82544        0
      malloc-16384  16384       4       1         179       0       1      81920        0
           sctp_ep   1280      41      22         632       0     254      80640        0
             g_bio    408       0     190       13283       0      30      77520        0
       malloc-1024   1024      44      24         839       0      16      69632        0
      malloc-65536  65536       0       1           8       0       1      65536        0
      malloc-32768  32768       2       0           2       0       1      65536        0
        malloc-128    128     374      91        1123       0     126      59520        0
        malloc-384    384     108      32         770       0      30      53760        0
       malloc-4096   4096      12       1          23       0       2      53248        0
        malloc-384    384      77      53        1026       0      30      49920        0
        malloc-256    256     156      39         293       0      62      49920        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-8192   8192       6       0           6       0       1      49152        0
         64 Bucket    512      64      32        5196       0      30      49152        0
        sctp_raddr    736      36      30         407       0     254      48576        0
         32 Bucket    256      56     124       31965       0      62      46080        0
             tcpcb   1080      11      31         297       0     254      45360        0
            pcpu-8      8    4668     964        5744       0     254      45056        0
         malloc-64     64     571     122       20252       0     254      44352        0
        malloc-256    256     110      55        1152       0      62      42240        0
            clpbuf   2624       0      16          30       0      16      41984        0
       malloc-8192   8192       5       0           5       0       1      40960        0
        malloc-384    384      75      25         258       0      30      38400        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36       19719       0      16      36864        0
       malloc-4096   4096       9       0           9       0       2      36864        0
        malloc-256    256      90      45         981       0      62      34560        0
      malloc-32768  32768       1       0           1       0       1      32768        0
       malloc-8192   8192       2       2           4       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
       malloc-1024   1024      13      19        1685       0      16      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
         malloc-64     64     478      26         690       0     254      32256        0
         tcp_inpcb    496      11      53         297       0     254      31744        0
        sctp_chunk    152       5     203        1066       0     254      31616        0
       malloc-2048   2048      12       2         203       0       8      28672        0
             Files     80     185     165       11812       0     126      28000        0
          8 Bucket     80      60     290        1554       0     126      28000        0
              pipe    744      20      15         479       0      16      26040        0
         TURNSTILE    136     177      12         177       0      62      25704        0
       malloc-2048   2048       2      10         105       0       8      24576        0
       malloc-2048   2048       7       5         202       0       8      24576        0
             KNOTE    160      31     119       84623       0      62      24000        0
            ttyinq    160     135      15         300       0      62      24000        0
     udplite_inpcb    496       2      46         286       0     254      23808        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-256    256      37      53         573       0      62      23040        0
       malloc-4096   4096       3       2         806       0       2      20480        0
       malloc-4096   4096       2       3          11       0       2      20480        0
       malloc-1024   1024      17       3          17       0      16      20480        0
               PWD     32      19     611         719       0     254      20160        0
         malloc-64     64     196     119        3697       0     254      20160        0
         malloc-64     64      63     252        1297       0     254      20160        0
         malloc-32     32     301     329        6143       0     254      20160        0
        malloc-128    128       7     148         266       0     126      19840        0
        SLEEPQUEUE     88     177      47         177       0     126      19712        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-384    384      32      18          54       0      30      19200        0
        malloc-384    384      36      14          38       0      30      19200        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       2       2          85       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-64     64     155      97         172       0     254      16128        0
         malloc-32     32     446      58         574       0     254      16128        0
         malloc-32     32      99     405        1562       0     254      16128        0
      vtnet_tx_hdr     24       2     666      745900       0     254      16032        0
        malloc-128    128      95      29         758       0     126      15872        0
        malloc-256    256      37      23         736       0      62      15360        0
        malloc-256    256      34      26         887       0      62      15360        0
      tcp_rack_pcb    832       5      13          67       0      16      14976        0
       tcp_bbr_pcb    832       2      16         120       0      16      14976        0
       malloc-1024   1024       8       4           9       0      16      12288        0
        malloc-512    512      10      14         201       0      30      12288        0
           rtentry    176      28      41          65       0      62      12144        0
         malloc-32     32     158     220         307       0     254      12096        0
         16 Bucket    144      50      34         324       0      62      12096        0
          2 Bucket     32      69     309         724       0     254      12096        0
         malloc-16     16     345     405         599       0     254      12000        0
             ripcb    496       2      22          47       0     254      11904        0
         udp_inpcb    496       6      18         277       0     254      11904        0
              kenv    258      15      30        1046       0      30      11610        0
     routing nhops    256      22      23          65       0      62      11520        0
             unpcb    256      11      34        1345       0     254      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-1024   1024       2       6          26       0      16       8192        0
       malloc-1024   1024       1       7          28       0      16       8192        0
        malloc-512    512       3      13          39       0      30       8192        0
        malloc-512    512       4      12          10       0      30       8192        0
        malloc-512    512       0      16         111       0      30       8192        0
           pf tags    104       0      78           8       0     126       8112        0
              PGRP     88      23      69          59       0     126       8096        0
          rl_entry     40      63     139          63       0     254       8080        0
sctp_stream_msg_out    112      27      45         101       0     254       8064        0
        sctp_laddr     48      20     148         195       0     254       8064        0
      tcp_rack_map    112      15      57         151       0     126       8064        0
             udpcb     32       8     244         563       0     254       8064        0
              ertt     72      11     101         297       0     126       8064        0
         malloc-64     64      12     114         234       0     254       8064        0
         malloc-64     64      62      64         277       0     254       8064        0
         malloc-32     32      21     231          53       0     254       8064        0
         malloc-32     32      38     214        1069       0     254       8064        0
          4 Bucket     48       8     160          64       0     254       8064        0
         malloc-16     16      13     487         309       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      27     473       25915       0     254       8000        0
         malloc-16     16      85     415        1155       0     254       8000        0
        malloc-128    128      24      38         297       0     126       7936        0
        malloc-128    128      15      47          97       0     126       7936        0
        sctp_readq    152       0      52          49       0     254       7904        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           7       0     126       6448        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           4       0      30       4096        0
        malloc-512    512       4       4           4       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
          tcpreass     48       0      84          19       0     254       4032        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
       UMA Slabs 1    176      10      12          10       0      62       3872        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
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       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     254          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
          sackhole     32       0       0           0       0     254          0        0
             tcptw     88       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
             AIOCB    552       0       0           0       0      16          0        0
              AIOP     32       0       0           0       0     254          0        0
               AIO    208       0       0           0       0      62          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
        TMPFS node    224       0       0           0       0      62          0        0
           NCLNODE    584       0       0           0       0      16          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
           cryptop    280       0       0           0       0      30          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
         domainset     40       0       0           0       0     254          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-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 (18):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/07/09 18:05 freebsd-src a65fe39d5418 281e815f console log report ci-freebsd-main panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/09 15:24 freebsd-src a65fe39d5418 281e815f console log report ci-freebsd-main panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/09 13:22 freebsd-src a65fe39d5418 281e815f console log report ci-freebsd-main panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/09 00:01 freebsd-src e88c3b1b02a6 1b20171a console log report ci-freebsd-main panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/08 20:48 freebsd-src e88c3b1b02a6 1b20171a console log report ci-freebsd-main panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/08 14:16 freebsd-src e88c3b1b02a6 1aade754 console log report ci-freebsd-main panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/08 12:52 freebsd-src e88c3b1b02a6 1aade754 console log report ci-freebsd-main panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/08 06:21 freebsd-src da2f833f7a0b 95793bce console log report ci-freebsd-main panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/07 15:13 freebsd-src da2f833f7a0b 4846d5c1 console log report ci-freebsd-main panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/07 13:53 freebsd-src da2f833f7a0b 4846d5c1 console log report ci-freebsd-main panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/09 00:45 freebsd-src bf3a385217ce 1b20171a console log report ci-freebsd-i386 panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/08 19:20 freebsd-src e88c3b1b02a6 1b20171a console log report ci-freebsd-i386 panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/08 17:30 freebsd-src e88c3b1b02a6 1aade754 console log report ci-freebsd-i386 panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/08 07:52 freebsd-src 48b4fe050328 1aade754 console log report ci-freebsd-i386 panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/07 22:00 freebsd-src 48b4fe050328 95793bce console log report ci-freebsd-i386 panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/07 21:12 freebsd-src 48b4fe050328 95793bce console log report ci-freebsd-i386 panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/07 16:57 freebsd-src a7b05eb16c9d 4846d5c1 console log report ci-freebsd-i386 panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
2021/07/07 12:46 freebsd-src a7b05eb16c9d 4846d5c1 console log report ci-freebsd-i386 panic: ASan: Invalid access, 8-byte read at ADDR, StackMiddle(f2)
* Struck through repros no longer work on HEAD.