syzbot


panic: ASan: Invalid access, NUM-byte write at ADDR, MallocRedZone(fb)

Status: upstream: reported C repro on 2022/06/22 07:17
Reported-by: syzbot+c94f6c97744bd9f9d14d@syzkaller.appspotmail.com
First crash: 667d, last: 667d

Sample crash report:
login: panic: ASan: Invalid access, 4-byte write at 0xfffffe00579977f8, MallocRedZone(fb)
cpuid = 1
time = 1655882111
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe005402fcb0
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe005402fe10
vpanic() at vpanic+0x254/frame 0xfffffe005402fef0
panic() at panic+0xb5/frame 0xfffffe005402ffb0
kasan_report() at kasan_report+0xdc/frame 0xfffffe0054030080
cb_put_phdr() at cb_put_phdr+0x4b/frame 0xfffffe00540300c0
each_dumpable_segment() at each_dumpable_segment+0x231/frame 0xfffffe0054030110
elf64_puthdr() at elf64_puthdr+0x497/frame 0xfffffe00540301f0
elf64_coredump() at elf64_coredump+0x53d/frame 0xfffffe00540303d0
sigexit() at sigexit+0x1e3c/frame 0xfffffe0054030d30
postsig() at postsig+0x2c4/frame 0xfffffe0054030eb0
ast() at ast+0xc5b/frame 0xfffffe0054030f30
doreti_ast() at doreti_ast+0x1f/frame 0x821126e80
KDB: enter: panic
[ thread pid 783 tid 100093 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x275b2ea(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                           0
rax                       0x12
rcx         0x1fffffc00a805f4c
rdx         0xdffff7c000000000
rbx                          0
rsp         0xfffffe005402fdf0
rbp         0xfffffe005402fe10
rsi                        0x1
rdi                          0
r8                         0x3
r9                  0xffffffff
r10                          0
r11                      0x246
r12                          0
r13         0xfffffe0058c29560
r14         0xffffffff82b5ae60  .str.26
r15         0xffffffff82b5ae60  .str.26
rip         0xffffffff8171b42b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x275b2ea(%rip)
db> show proc
Process 783 (syz-executor1927027) at 0xfffffe0058c27000:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 782 at 0xfffffe0058c25000
 ABI: FreeBSD ELF64
 flag: 0x10000000  flag2: 0x40000
 arguments: ./syz-executor1927027967
 reaper: 0xfffffe0053dcc000 reapsubtree: 1
 sigparent: 0
 vmspace: 0xfffffe0058b4f3f0
   (map 0xfffffe0058b4f3f0)
   (map.pmap 0xfffffe0058b4f4b0)
   (pmap 0xfffffe0058b4f518)
 threads: 1
100093                   Run     CPU 1                       syz-executor1927027
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  784   783   779     0  R                                   syz-executor1927027
  783   782   779     0  R       CPU 1                       syz-executor1927027
  782   781   779     0  R       CPU 0                       syz-executor1927027
  781   779   779     0  R                                   syz-executor1927027
  779   777   779     0  Ss      pause   0xfffffe0058c25b40  csh
  777   688   777     0  Ss      select  0xfffffe0056fbc940  sshd
  754     1   754     0  Ss+     ttyin   0xfffffe0056f2acb0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe0056f294b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe0056f298b0  getty
  751     1   751     0  Ss+     ttyin   0xfffffe00585d7cb0  getty
  750     1   750     0  Ss+     ttyin   0xfffffe00585d80b0  getty
  749     1   749     0  Ss+     ttyin   0xfffffe0056f29cb0  getty
  748     1   748     0  Ss+     ttyin   0xfffffe00585d84b0  getty
  747     1   747     0  Ss+     ttyin   0xfffffe00585d88b0  getty
  746     1   746     0  Ss+     ttyin   0xfffffe00585d8cb0  getty
  744     1    18     0  S+      piperd  0xfffffe0058b4dba0  logger
  743   742    18     0  S+      nanslp  0xffffffff83e43dc0  sleep
  742     1    18     0  S+      wait    0xfffffe00926cea90  sh
  692     1   692     0  Ss      nanslp  0xffffffff83e43dc0  cron
  688     1   688     0  Ss      select  0xfffffe0057871a40  sshd
  501     1   501     0  Ss      select  0xfffffe0056f9cc40  syslogd
  430     1   430     0  Ss      select  0xfffffe0056f9d0c0  devd
  429     1   429    65  Ss      select  0xfffffe0056f9cf40  dhclient
  344     1   344     0  Ss      select  0xfffffe0056f9cdc0  dhclient
  341     1   341     0  Ss      select  0xfffffe00578719c0  dhclient
   17     0     0     0  DL      vlruwt  0xfffffe0056f67548  [vnlru]
   16     0     0     0  DL      syncer  0xffffffff83f695e0  [syncer]
   15     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff83f67be0  [bufdaemon]
100082                   D       -       0xffffffff83211f80  [bufspacedaemon-0]
100094                   D       sdflush 0xfffffe0053c6e8e8  [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83f9b700  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff83f8f5b8  [dom0]
100080                   D       launds  0xffffffff83f8f5c4  [laundry: dom0]
100081                   D       umarcl  0xffffffff81e4d160  [uma]
    7     0     0     0  DL      -       0xffffffff83c003a8  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff8465f550  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff84a77420  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100044                   D       -       0xffffffff83aa3340  [doneq0]
100045                   D       -       0xffffffff83aa32c0  [async]
100076                   D       -       0xffffffff83aa3140  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0007962888  [sequencer 00]
    3     0     0     0  DL      (threaded)                  [crypto]
100040                   D       crypto_ 0xffffffff83f8ade0  [crypto]
100041                   D       crypto_ 0xfffffe0053e71d30  [crypto returns 0]
100042                   D       crypto_ 0xfffffe0053e71d80  [crypto returns 1]
   13     0     0     0  DL      (threaded)                  [geom]
100035                   D       -       0xffffffff83e193c0  [g_event]
100036                   D       -       0xffffffff83e193e0  [g_up]
100037                   D       -       0xffffffff83e19400  [g_down]
    2     0     0     0  WL      (threaded)                  [clock]
100029                   I                                   [clock (0)]
100030                   I                                   [clock (1)]
   12     0     0     0  WL      (threaded)                  [intr]
100015                   I                                   [swi5: fast taskq]
100018                   I                                   [swi6: task queue]
100019                   I                                   [swi6: Giant taskq]
100031                   I                                   [swi1: netisr 0]
100032                   I                                   [swi1: hpts]
100033                   I                                   [swi1: hpts]
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                                   [irq33: virtio_pci2]
100060                   I                                   [irq34: virtio_pci2]
100061                   I                                   [irq35: virtio_pci2]
100063                   I                                   [irq1: atkbd0]
100064                   I                                   [irq12: psm0]
100065                   I                                   [swi0: uart uart++]
100069                   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    0xfffffe0053dcc000  [init]
   10     0     0     0  DL      audit_w 0xffffffff83f8b8c0  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff83e19dc0  [swapper]
100005                   D       -       0xfffffe000817de00  [if_config_tqg_0]
100006                   D       -       0xfffffe000817dd00  [softirq_0]
100007                   D       -       0xfffffe000817dc00  [softirq_1]
100008                   D       -       0xfffffe000817db00  [if_io_tqg_0]
100009                   D       -       0xfffffe000817da00  [if_io_tqg_1]
100010                   D       -       0xfffffe000817d900  [inm_free taskq]
100011                   D       -       0xfffffe000817d800  [linuxkpi_irq_wq]
100012                   D       -       0xfffffe000817d700  [in6m_free taskq]
100013                   D       -       0xfffffe000817d600  [deferred_unmount ta]
100014                   D       -       0xfffffe000817d500  [thread taskq]
100016                   D       -       0xfffffe000817d300  [kqueue_ctx taskq]
100017                   D       -       0xfffffe000817d200  [pci_hp taskq]
100020                   D       -       0xfffffe000817ce00  [aiod_kick taskq]
100021                   D       -       0xfffffe000817cd00  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe000817cd00  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe000817cd00  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe000817cd00  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe000817cc00  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe000817cc00  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe000817cc00  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe000817cc00  [linuxkpi_long_wq_3]
100034                   D       -       0xfffffe000817cb00  [firmware taskq]
100038                   D       -       0xfffffe000817ca00  [crypto_0]
100039                   D       -       0xfffffe000817ca00  [crypto_1]
100055                   D       -       0xfffffe000817c800  [vtnet0 rxq 0]
100056                   D       -       0xfffffe000817c700  [vtnet0 txq 0]
100057                   D       -       0xfffffe000817c600  [vtnet0 rxq 1]
100058                   D       -       0xfffffe000817c500  [vtnet0 txq 1]
100062                   D       vtbslp  0xfffffe0056f9d380  [virtio_balloon]
100066                   D       -       0xffffffff82b60ce0  [deadlkres]
100070                   D       -       0xfffffe000817e100  [mca taskq]
100071                   D       -       0xfffffe00585d3300  [acpi_task_0]
100072                   D       -       0xfffffe00585d3300  [acpi_task_1]
100073                   D       -       0xfffffe00585d3300  [acpi_task_2]
100075                   D       -       0xfffffe000817c900  [CAM taskq]
db> show all locks
Process 783 (syz-executor1927027) thread 0xfffffe0058c29560 (100093)
shared sx vm map (user) (vm map (user)) r = 0 (0xfffffe0058b4f450) locked @ /syzkaller/managers/main/kernel/sys/kern/imgact_elf.c:1743
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
          tcp_hpts            7         4801K            7
            devbuf         4217         4323K         4242
         sysctloid        35205         2074K        35276
             vtbuf           24         1968K           46
              kobj          328         1312K          490
            newblk          540         1159K          591
          vfscache            3         1025K            3
               pcb           19          537K           38
          inodedep           27          522K           72
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          101          194K          843
            acpica         1674          184K        57552
         vnet_data            1          168K            1
           tidhash            3          141K            3
              vmem            3          138K            4
            linker          358          134K          386
           pagedep            8          130K           18
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          105          105K          114
               bus          995           81K         5208
          mtx_pool            2           72K            2
          syncache            1           68K            1
            module          514           65K          514
          acpitask            1           64K            1
       ddb_capture            1           64K            1
              temp           35           36K         1639
         hostcache            1           32K            1
               shm            1           32K            1
           kdtrace          159           32K          901
            DEVFS3          124           31K          134
              umtx          242           31K          242
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
               BPF           10           18K           10
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           97           16K           97
            bus-sc           34           15K         1681
            KTRACE          100           13K          100
      eventhandler          136           12K          136
              kenv           95           12K           95
            ifaddr           30           12K           32
              rman           88           11K          431
              GEOM           61           11K          490
          routetbl           50           11K          176
         CAM queue            5           11K         1528
         bmsafemap            3            9K           42
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K            1
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
              cred           31            8K          244
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          296
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
       ufs_dirhash           24            5K           24
               UMA          271            5K          271
            plimit           17            5K          337
            kqueue           47            5K          791
                vt           11            5K           11
             ifnet            3            5K            3
           memdesc            1            4K            1
               MCA           32            4K           32
          filedesc            1            4K            1
             evdev            4            4K            4
           acpisem           28            4K           28
             hhook           15            4K           17
       ether_multi           40            4K           50
           lltable           11            4K           11
          pf_ifnet            5            3K            6
         in6_multi           25            3K           25
          terminal           11            3K           11
           pwddesc           41            3K          783
           session           20            3K           32
           uidinfo            3            3K            9
         proc-args           65            3K         1730
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
             lockf           19            2K           29
             selfd           27            2K         9090
          freefile           13            2K           22
            Unitno           27            2K           39
           CAM XPT           22            2K          543
               msi           12            2K           12
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
             clone            9            2K            9
           softdep            1            1K            1
            dirrem            4            1K           28
            diradd            8            1K           37
            sahead            1            1K            1
          secasvar            1            1K            1
       vnodemarker            2            1K           10
      NFSD session            1            1K            1
        CAM periph            4            1K          271
            select            7            1K           29
             ipsec            3            1K            3
          indirdep            3            1K            3
             nhops            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
          sctp_ifa            5            1K            6
            crypto            4            1K            4
            ip6ndp            4            1K            5
 encap_export_host           12            1K           12
         newdirblk            4            1K            8
             mkdir            4            1K           16
          in_multi            2            1K            4
              pfil            4            1K            4
              cdev            2            1K            2
    chacha20random            1            1K            1
               osd            7            1K           18
       inpcbpolicy           10            1K          139
          sctp_ifn            2            1K            6
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
            DEVFSP            4            1K            9
             DEVFS            9            1K           10
               mld            2            1K            2
              igmp            2            1K            2
            vnodes            1            1K            1
           CAM SIM            2            1K            2
            feeder            7            1K            7
           tcpfunc            3            1K            3
            CC Mem            3            1K            7
        loginclass            3            1K            7
            prison            6            1K            6
filedesc_to_leader            3            1K            3
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
         cryptodev            2            1K           49
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          procdesc            1            1K            6
          pmchooks            1            1K            1
            soname            4            1K         3473
          filecaps            4            1K           66
               tun            3            1K            3
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           35
               pmc            1            1K            1
          acpiintr            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          freework            1            1K           26
          p1003.1b            1            1K            1
            tcp_do            0            0K            0
           tcp_fsb            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K            0
         sctp_iter            0            0K            4
         sctp_mvrf            0            0K            0
         sctp_timw            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_athm            0            0K            0
         sctp_atky            0            0K            0
         sctp_atcl            0            0K            0
         sctp_a_it            0            0K            4
         sctp_aadr            0            0K            0
         sctp_stro            0            0K            0
         sctp_stri            0            0K            0
          sctp_map            0            0K            0
            mqdata            0            0K            0
           filemon            0            0K            0
            ipcomp            0            0K            0
               esp            0            0K            0
                ah            0            0K            0
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
           pf_temp            0            0K            0
   NFSCL layrecall            0            0K            0
     NFSCL session            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
     NFSCL sockreq            0            0K            0
     NFSCL devinfo            0            0K            0
     NFSCL flayout            0            0K            0
               ixl            0            0K            0
      NFSCL layout            0            0K            0
     NFSD rollback            0            0K            0
      NFSCL diroff            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
         NFSCL lck            0            0K            0
      NFSCL lckown            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
              iavf            0            0K            0
             axgbe            0            0K            0
      NFSCL client            0            0K            0
       NFSCL deleg            0            0K            0
        NFSCL open            0            0K            0
       NFSCL owner            0            0K            0
            NFS fh            0            0K            0
           NFS req            0            0K            0
     NFSD usrgroup            0            0K            0
       NFSD string            0            0K            0
       NFSD V4lock            0            0K            0
          xen_intr            0            0K            0
      NFSD V4state            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            bounce            0            0K            0
            busdma            0            0K            0
            qpidrv            0            0K            0
     NFSD srvcache            0            0K            0
       msdosfs_fat            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
            DEVFS4            0            0K            0
     vm_fictitious            0            0K            0
            DEVFS2            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
         scsi_pass            0            0K            0
         ciss_data            0            0K            0
               xnb            0            0K            0
          xen_acpi            0            0K            0
              xbbd            0            0K            0
               xbd            0            0K            0
           UMAHash            0            0K            0
           Balloon            0            0K            0
          sysmouse            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K           17
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            3
           jsegdep            0            0K            0
              jseg            0            0K            0
         jfreefrag            0            0K            0
          jfreeblk            0            0K            0
           jnewblk            0            0K            0
            jmvref            0            0K            0
           jremref            0            0K            0
           jaddref            0            0K            0
           freedep            0            0K            0
          freeblks            0            0K           25
          freefrag            0            0K            1
        allocindir            0            0K            0
       allocdirect            0            0K            0
          ufs_trim            0            0K            0
           mactemp            0            0K            0
     audit_trigger            0            0K            0
 audit_pipe_presel            0            0K            0
     audit_pipeent            0            0K            0
        audit_pipe            0            0K            0
      audit_evname            0            0K            0
         audit_bsm            0            0K            0
      audit_gidset            0            0K            0
        audit_text            0            0K            0
        audit_path            0            0K            0
        audit_data            0            0K            0
        audit_cred            0            0K            0
            vtfont            0            0K            0
         BACKLIGHT            0            0K            0
           ath_hal            0            0K            0
            athdev            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
            pvscsi            0            0K            0
           scsi_da            0            0K           69
            ata_da            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
          ktls_ocf            0            0K            0
       AHCI driver            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
      MLX5E_TLS_RX            0            0K            0
        MLX5EEPROM            0            0K            0
         MLX5E_TLS            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
            MLX5EN            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
          MLX5DUMP            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
          seq_file            0            0K            0
           lkpiskb            0            0K            0
             radix            0            0K            0
               idr            0            0K            0
          lkpindev            0            0K            0
            lkpifw            0            0K            0
         lkpi80211            0            0K            0
               NLM            0            0K            0
    ipsec-spdcache            0            0K            0
         ipsec-reg            0            0K            0
        ipsec-misc            0            0K            0
      ipsecrequest            0            0K            0
            ip6opt            0            0K            3
       ip6_msource            0            0K            0
      ip6_moptions            0            0K            0
       in6_mfilter            0            0K            0
             frag6            0            0K            0
            tcplog            0            0K            0
        tcp_hwpace            0            0K            0
            USBdev            0            0K            0
               USB            0            0K            0
               LRO            0            0K            0
        ip_msource            0            0K            0
       ip_moptions            0            0K            0
        in_mfilter            0            0K            0
              ipid            0            0K            0
         80211scan            0            0K            0
      80211ratectl            0            0K            0
        80211power            0            0K            0
       80211nodeie            0            0K            0
         80211node            0            0K            0
      80211mesh_gt            0            0K            0
      80211mesh_rt            0            0K            0
         80211perr            0            0K            0
         80211prep            0            0K            0
         80211preq            0            0K            0
          80211dfs            0            0K            0
       80211crypto            0            0K            0
          80211vap            0            0K            0
             iflib            0            0K            0
              vlan            0            0K            0
               gif            0            0K            0
           ifdescr            0            0K            0
              zlib            0            0K            0
           fadvise            0            0K            0
           VN POLL            0            0K            0
               agp            0            0K            0
            statfs            0            0K          197
     namei_tracker            0            0K            0
       export_host            0            0K            0
        cl_savebuf            0            0K            3
           nvme_da            0            0K            0
           acpipwr            0            0K            0
         acpi_perf            0            0K            0
            twsbuf            0            0K            0
      twe_commands            0            0K            0
       tcp_log_dev            0            0K            0
      midi buffers            0            0K            0
             mixer            0            0K            0
              ac97            0            0K            0
             hdacc            0            0K            0
              hdac            0            0K            0
              hdaa            0            0K            0
         acpicmbat            0            0K            0
       SIIS driver            0            0K            0
           CAM CCB            0            0K          523
            biobuf            0            0K            0
               aio            0            0K            0
               lio            0            0K            0
               acl            0            0K            0
          mbuf_tag            0            0K           27
              ktls            0            0K            0
               PUC            0            0K            0
          ppbusdev            0            0K            0
agtiapi_MemAlloc malloc            0            0K            0
    osti_cacheable            0            0K            0
          tempbuff            0            0K            0
          tempbuff            0            0K            0
ag_tgt_map_t malloc            0            0K            0
ag_slr_map_t malloc            0            0K            0
lDevFlags * malloc            0            0K            0
tiDeviceHandle_t * malloc            0            0K            0
ag_portal_data_t malloc            0            0K            0
ag_device_t malloc            0            0K            0
     STLock malloc            0            0K            0
          CCB List            0            0K            0
            sr_iov            0            0K            0
               OCS            0            0K            0
               OCS            0            0K            0
              nvme            0            0K            0
               nvd            0            0K            0
            netmap            0            0K            0
            mwldev            0            0K            0
        MVS driver            0            0K            0
     CAM ccb queue            0            0K            0
              accf            0            0K            0
               pts            0            0K            0
               iov            0            0K        13515
          ioctlops            0            0K           86
           eventfd            0            0K            0
           Witness            0            0K            0
             stack            0            0K            0
          mrsasbuf            0            0K            0
          mpt_user            0            0K            0
          mps_user            0            0K            0
            MPSSAS            0            0K            0
               mps            0            0K            0
              sbuf            0            0K          294
          mpr_user            0            0K            0
          firmware            0            0K            0
        compressor            0            0K            0
            MPRSAS            0            0K            0
              SWAP            0            0K            0
               mpr            0            0K            0
            mfibuf            0            0K            0
         sysctltmp            0            0K          659
            sysctl            0            0K            3
        md_sectors            0            0K            0
              ekcd            0            0K            0
            dumper            0            0K            0
          sendfile            0            0K            0
              rctl            0            0K            0
           md_disk            0            0K            0
           malodev            0            0K            0
               LED            0            0K            0
          ix_sriov            0            0K            0
             cache            0            0K            0
        aacraidcam            0            0K            0
          kcovinfo            0            0K            0
      prison_racct            0            0K            0
       Fail Points            0            0K            0
             sigio            0            0K            1
               pwd            0            0K            0
       tty console            0            0K            0
                ix            0            0K            0
            ipsbuf            0            0K            0
       aacraid_buf            0            0K            0
            aaccam            0            0K            0
         boottrace            0            0K            0
            aacbuf            0            0K            0
              zstd            0            0K            0
            XZ_DEC            0            0K            0
            nvlist            0            0K            0
          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
        isofs_node            0            0K            0
       isofs_mount            0            0K            0
     tr_raid5_data            0            0K            0
    tr_raid1e_data            0            0K            0
     tr_raid1_data            0            0K            0
     tr_raid0_data            0            0K            0
    tr_concat_data            0            0K            0
       md_sii_data            0            0K            0
   md_promise_data            0            0K            0
    md_nvidia_data            0            0K            0
   md_jmicron_data            0            0K            0
     md_intel_data            0            0K            0
       md_ddf_data            0            0K            0
         raid_data            0            0K           72
     geom_flashmap            0            0K            0
         tmpfs dir            0            0K            0
        tmpfs name            0            0K            0
       tmpfs mount            0            0K            0
           NFS FHA            0            0K            0
         newnfsmnt            0            0K            0
  newnfsclient_req            0            0K            0
db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320    1078       13424       0     254   38494208        0
              mbuf    256    8577    1084       15927       0     254    2473216        0
              pbuf   2624       0     794           0       0       2    2083456        0
          BUF TRIE    144     170   11590         452       0      62    1693440        0
        malloc-384    384    4174      56        4220       0      30    1624320        0
        malloc-128    128   12364     253       12677       0     126    1614976        0
       malloc-4096   4096     340       2         513       0       2    1400832        0
       UMA Slabs 0    112   10430       4       10430       0     126    1168608        0
         vmem btag     56   16095      72       16095       0     254     905352        0
         FFS inode   1160     490      35         513       0       8     609000        0
             tcpcb   1104       3     508           7       0     254     564144        0
      mbuf_cluster   2048     254       0         254       0     254     520192        0
        RADIX NODE    144    3243     196       19941       0      62     495216        0
            socket    960      18     490        1336       0     254     487680        0
      malloc-65536  65536       2       5         138       0       1     458752        0
         VM OBJECT    264    1427      73       24524       0      30     396000        0
      malloc-65536  65536       4       2          50       0       1     393216        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
        256 Bucket   2048     119      19         984       0       8     282624        0
         malloc-64     64    3871     224       12948       0     254     262080        0
             VNODE    448     520      56         545       0      30     258048        0
         malloc-16     16   14570     180       14642       0     254     236000        0
            DEVCTL   1024       0     220         126       0       0     225280        0
            THREAD   1808     115       6         115       0       8     218768        0
      malloc-65536  65536       2       1          10       0       1     196608        0
       malloc-4096   4096      46       2         871       0       2     196608        0
        malloc-128    128    1296     223       27046       0     126     194432        0
         MAP ENTRY     96    1583     433       84526       0     126     193536        0
         UMA Zones    768     243       1         243       0      16     187392        0
         malloc-32     32    5335     335        6407       0     254     181440        0
        malloc-256    256     598      92        1539       0      62     176640        0
       FFS2 dinode    256     490      80         512       0      62     145920        0
       S VFS Cache    104     970     317        1012       0     126     133848        0
       malloc-1024   1024     116      12         282       0      16     131072        0
             unpcb    256       7     503        1180       0     254     130560        0
     FPU_save_area    832     117      27         131       0      16     119808        0
          ksiginfo    112      38    1006          55       0     126     116928        0
      malloc-32768  32768       1       2         121       0       1      98304        0
       malloc-8192   8192      11       1          13       0       1      98304        0
          UMA Kegs    384     229       4         229       0      30      89472        0
        128 Bucket   1024      43      40         474       0      16      84992        0
         malloc-64     64     919     404        2906       0     254      84672        0
           VMSPACE   2552      24       9         767       0       4      84216        0
        malloc-128    128     393     258        4419       0     126      83328        0
      malloc-16384  16384       5       0          20       0       1      81920        0
       malloc-2048   2048       5      35         512       0       8      81920        0
        malloc-256    256     262      53         825       0      62      80640        0
              PROC   1352      42      15         784       0       8      77064        0
             g_bio    408       0     180        4645       0      30      73440        0
         malloc-64     64     569     502        2405       0     254      68544        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-16384  16384       1       3         161       0       1      65536        0
       malloc-8192   8192       5       3         106       0       1      65536        0
       mbuf_packet    256       0     254          81       0     254      65024        0
         filedesc0   1072      41      15         783       0       8      60032        0
         64 Bucket    512      62      42        1619       0      30      53248        0
        malloc-256    256     139      56         286       0      62      49920        0
        malloc-256    256      55     140         408       0      62      49920        0
         32 Bucket    256      61     134        1414       0      62      49920        0
           DIRHASH   1024      35      13          35       0      16      49152        0
             NAMEI   1024       0      48       12271       0      16      49152        0
       malloc-8192   8192       3       3          31       0       1      49152        0
       malloc-4096   4096       9       3         552       0       2      49152        0
       malloc-2048   2048      12      12          39       0       8      49152        0
       malloc-2048   2048       2      22         534       0       8      49152        0
       malloc-1024   1024       4      44         512       0      16      49152        0
        malloc-384    384      83      37          83       0      30      46080        0
          syncache    168       0     264           5       0     254      44352        0
            clpbuf   2624       0      16          20       0      16      41984        0
       Mountpoints   2752       2      12           2       0       4      38528        0
         udp_inpcb    424       6      84         128       0      30      38160        0
            pcpu-8      8    4220     388        4248       0     254      36864        0
         malloc-64     64       8     559       13215       0     254      36288        0
         malloc-64     64      56     511          56       0     254      36288        0
         malloc-64     64      26     541          58       0     254      36288        0
         malloc-64     64       2     565         525       0     254      36288        0
         malloc-64     64       0     567          16       0     254      36288        0
        malloc-128    128      35     244         112       0     126      35712        0
        malloc-128    128      44     235          61       0     126      35712        0
        malloc-128    128      30     249          81       0     126      35712        0
        malloc-128    128      89     190         436       0     126      35712        0
        malloc-128    128       4     275           4       0     126      35712        0
     routing nhops    256      10     125          17       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-384    384      59      31         399       0      30      34560        0
        malloc-256    256      35     100         494       0      62      34560        0
        malloc-256    256       3     132          59       0      62      34560        0
        malloc-256    256       3     132          55       0      62      34560        0
        malloc-256    256       9     126          82       0      62      34560        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
       malloc-2048   2048       1      15          13       0       8      32768        0
       malloc-2048   2048       1      15           3       0       8      32768        0
       malloc-2048   2048       8       8         249       0       8      32768        0
       malloc-1024   1024       3      29          43       0      16      32768        0
       malloc-1024   1024      15      17         899       0      16      32768        0
       malloc-1024   1024      20      12          36       0      16      32768        0
       malloc-1024   1024      10      22          14       0      16      32768        0
       malloc-1024   1024       2      30           6       0      16      32768        0
        malloc-512    512       6      58          24       0      30      32768        0
        malloc-512    512       8      56           9       0      30      32768        0
        malloc-512    512       2      62          51       0      30      32768        0
        malloc-512    512       3      61           3       0      30      32768        0
           pcpu-64     64     493      19         493       0     254      32768        0
            ttyinq    160     135      65         300       0      62      32000        0
            cpuset    104       7     272           7       0     126      29016        0
        sctp_laddr     48       0     588           4       0     254      28224        0
         malloc-32     32     383     499        1313       0     254      28224        0
         16 Bucket    144      41     155         223       0      62      28224        0
          4 Bucket     48       6     582          47       0     254      28224        0
         tcp_inpcb    424       3      60           7       0      30      26712        0
            da_ccb    544       0      49        1275       0      16      26656        0
              pipe    744       7      28         286       0      16      26040        0
         TURNSTILE    136     122      67         122       0      62      25704        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-4096   4096       6       0           6       0       2      24576        0
           rtentry    176      13     125          17       0      62      24288        0
              PGRP     88      20     256          32       0     126      24288        0
          rl_entry     40      30     576          30       0     254      24240        0
             Files     80      74     226        6610       0     126      24000        0
          8 Bucket     80      38     262         225       0     126      24000        0
        malloc-384    384       7      53           9       0      30      23040        0
        malloc-384    384       3      57          13       0      30      23040        0
        malloc-384    384       0      60          19       0      30      23040        0
        SLEEPQUEUE     88     122     134         122       0     126      22528        0
         hostcache     64       1     314           1       0     254      20160        0
             udpcb     32       6     624         128       0     254      20160        0
   udp_inpcb ports     32       3     627          40       0     254      20160        0
              ertt     72       3     277           7       0     126      20160        0
               PWD     32      10     620         102       0     254      20160        0
         malloc-32     32      75     555          87       0     254      20160        0
         malloc-32     32      33     597        2867       0     254      20160        0
         malloc-32     32      46     584         175       0     254      20160        0
         malloc-32     32      41     589         622       0     254      20160        0
         malloc-32     32       3     627          47       0     254      20160        0
          2 Bucket     32      45     585         304       0     254      20160        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-4096   4096       0       4         197       0       2      16384        0
       malloc-4096   4096       3       1           4       0       2      16384        0
       malloc-2048   2048       2       6           2       0       8      16384        0
        malloc-512    512       1      31         119       0      30      16384        0
        malloc-512    512       0      32           1       0      30      16384        0
           SMR CPU     32       7     504           7       0     254      16352        0
         malloc-16     16     526     474        4918       0     254      16000        0
              kenv    258      15      45        1037       0      30      15480        0
             ripcb    424       1      35           4       0      30      15264        0
            mqnode    416       3      33           3       0      30      14976        0
              vmem   1856       1       7           1       0       8      14848        0
        SMR SHARED     24       7     504           7       0     254      12264        0
    ertt_txseginfo     40       0     303         212       0     254      12120        0
   tcp_inpcb ports     32       1     377           1       0     254      12096        0
         malloc-32     32      11     367          44       0     254      12096        0
             KNOTE    160       2      73          10       0      62      12000        0
         malloc-16     16      11     739          74       0     254      12000        0
         malloc-16     16      33     717       26364       0     254      12000        0
         malloc-16     16       7     743           9       0     254      12000        0
         malloc-16     16      23     727          28       0     254      12000        0
         malloc-16     16       1     749           6       0     254      12000        0
        malloc-384    384       0      30           1       0      30      11520        0
       malloc-4096   4096       0       2           2       0       2       8192        0
       malloc-4096   4096       0       2           3       0       2       8192        0
           pcpu-16     16      14     498          14       0     254       8192        0
      vtnet_tx_hdr     24       0     334        1630       0     254       8016        0
         malloc-16     16      23     477          24       0     254       8000        0
       UMA Slabs 1    176       9      13           9       0      62       3872        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
            pcpu-4      4       1     511           1       0     254       2048        0
       FFS1 dinode    128       0       0           0       0     126          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
   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     254          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    312       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags    184       0       0           0       0      62          0        0
      tcp_rack_pcb    896       0       0           0       0      16          0        0
      tcp_rack_map    120       0       0           0       0     126          0        0
       tcp_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
               ipq     56       0       0           0       0     254          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     72       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
sctp_stream_msg_out    112       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     254          0        0
        sctp_chunk    152       0       0           0       0     254          0        0
        sctp_raddr    736       0       0           0       0     254          0        0
         sctp_asoc   2256       0       0           0       0     254          0        0
           sctp_ep   1208       0       0           0       0     254          0        0
   tcp_log_id_node    120       0       0           0       0     126          0        0
 tcp_log_id_bucket    176       0       0           0       0      62          0        0
           tcp_log    416       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
udplite_inpcb ports     32       0       0           0       0     254          0        0
     udplite_inpcb    424       0       0           0       0      30          0        0
       ripcb ports     32       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
               AIO    208       0       0           0       0      62          0        0
           NCLNODE    608       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
        TMPFS node    224       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
           cryptop    280       0       0           0       0      30          0        0
  linux_dma_object     32       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
    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-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-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-8192   8192       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-2048   2048       0       0           0       0       8          0        0
       malloc-1024   1024       0       0           0       0      16          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-384    384       0       0           0       0      30          0        0
           pcpu-32     32       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
2022/06/22 07:17 freebsd-src b256d2dc0c2f 0fc5c330 console log report syz C ci-freebsd-main panic: ASan: Invalid access, NUM-byte write at ADDR, MallocRedZone(fb)
* Struck through repros no longer work on HEAD.