syzbot


panic: sbflush_internal: ccc NUM mb ADDR mbcnt NUM

Status: fixed on 2024/01/09 13:16
Reported-by: syzbot+a58e1615881c01a51653@syzkaller.appspotmail.com
Fix commit: 59ce044a7856 sockets: on shutdown(2) do sorflush() only in case of generic sockbuf
First crash: 323d, last: 323d

Sample crash report:
panic: sbflush_internal: ccc 0 mb 0xfffffe006d3f8230 mbcnt 0
cpuid = 1
time = 1704470650
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe006d476770
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe006d4768d0
vpanic() at vpanic+0x271/frame 0xfffffe006d476a70
panic() at panic+0xb5/frame 0xfffffe006d476b40
sbrelease_internal() at sbrelease_internal+0x213/frame 0xfffffe006d476ba0
sbrelease() at sbrelease+0x6c/frame 0xfffffe006d476bd0
sorflush() at sorflush+0xcb/frame 0xfffffe006d476c00
soshutdown() at soshutdown+0x281/frame 0xfffffe006d476c50
kern_shutdown() at kern_shutdown+0x13d/frame 0xfffffe006d476d10
amd64_syscall() at amd64_syscall+0x473/frame 0xfffffe006d476f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe006d476f30
--- syscall (0, FreeBSD ELF64, syscall), rip = 0x233d4a, rsp = 0x8211c0068, rbp = 0x8211c0080 ---
KDB: enter: panic
[ thread pid 773 tid 100114 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x2193847(%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         0xfffffe00033eee30
rdx         0xdffff7c000000000
rbx         0xffffffff826f46c0  .str.28
rsp         0xfffffe006d4768b0
rbp         0xfffffe006d4768d0
rsi                        0x1
rdi                          0
r8                           0
r9                  0xffffffff
r10                          0
r11         0xfffffe006feadc60
r12                          0
r13         0xfffffe006fead740
r14         0xffffffff826f46c0  .str.28
r15                          0
rip         0xffffffff815ca7ce  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x2193847(%rip)
db> show proc
Process 773 (syz-executor2655856) at 0xfffffe006fea2000:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 771 at 0xfffffe005720f000
 ABI: FreeBSD ELF64
 flag: 0x10004000  flag2: 0
 arguments: ./syz-executor2655856626
 reaper: 0xfffffe0054247040 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe0054256268
   (map 0xfffffe0054256268)
   (map.pmap 0xfffffe0054256328)
   (pmap 0xfffffe0054256398)
 threads: 1
100114                   Run     CPU 1                       syz-executor2655856
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  773   771   771     0  R       CPU 1                       syz-executor2655856
  771   769   771     0  Ss      pause   0xfffffe005720f0b0  csh
  769   682   769     0  Rs      CPU 0                       sshd
  748     1   748     0  Ss+     ttyin   0xfffffe00574facb0  getty
  747     1   747     0  Ss+     ttyin   0xfffffe00586f00b0  getty
  746     1   746     0  Ss+     ttyin   0xfffffe00586f04b0  getty
  745     1   745     0  Ss+     ttyin   0xfffffe00586f08b0  getty
  744     1   744     0  Ss+     ttyin   0xfffffe00586f0cb0  getty
  743     1   743     0  Ss+     ttyin   0xfffffe00586f20b0  getty
  742     1   742     0  Ss+     ttyin   0xfffffe00586f24b0  getty
  741     1   741     0  Ss+     ttyin   0xfffffe00586f28b0  getty
  740     1   740     0  Ss+     ttyin   0xfffffe00586f2cb0  getty
  738     1    18     0  S+      piperd  0xfffffe0058a936c0  logger
  737   736    18     0  S+      nanslp  0xffffffff8373f401  sleep
  736     1    18     0  S+      wait    0xfffffe006fdbf020  sh
  686     1   686     0  Ss      nanslp  0xffffffff8373f400  cron
  682     1   682     0  Ss      select  0xfffffe0058be18c0  sshd
  495     1   495     0  Ss      select  0xfffffe0058be1840  syslogd
  424     1   424     0  Ss      select  0xfffffe0058be1740  devd
  423     1   423    65  Ss      select  0xfffffe0058be1040  dhclient
  338     1   338     0  Ss      select  0xfffffe0058be17c0  dhclient
  335     1   335     0  Ss      select  0xfffffe00589d93c0  dhclient
   17     0     0     0  DL      syncer  0xffffffff8385cb20  [syncer]
   16     0     0     0  DL      vlruwt  0xfffffe0057212060  [vnlru]
   15     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff8385b100  [bufdaemon]
100082                   D       -       0xffffffff82c0a140  [bufspacedaemon-0]
100094                   D       sdflush 0xfffffe00540da8e8  [/ worker]
    9     0     0     0  DL      psleep  0xffffffff838a45c0  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff8388c438  [dom0]
100080                   D       launds  0xffffffff8388c444  [laundry: dom0]
100081                   D       umarcl  0xffffffff81d5d740  [uma]
    7     0     0     0  DL      -       0xffffffff834bcc10  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff841a6d10  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff845c24e0  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100044                   D       -       0xffffffff83487340  [doneq0]
100045                   D       -       0xffffffff834872c0  [async]
100076                   D       -       0xffffffff83487140  [scanner]
    3     0     0     0  DL      (threaded)                  [crypto]
100041                   D       crypto_ 0xffffffff83887c60  [crypto]
100042                   D       crypto_ 0xfffffe00540fde30  [crypto returns 0]
100043                   D       crypto_ 0xfffffe00540fde80  [crypto returns 1]
   14     0     0     0  DL      seqstat 0xfffffe00570ef088  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100035                   D       -       0xffffffff836e7d40  [g_event]
100036                   D       -       0xffffffff836e7d60  [g_up]
100037                   D       -       0xffffffff836e7d80  [g_down]
    2     0     0     0  WL      (threaded)                  [clock]
100029                   I                                   [clock (0)]
100030                   I                                   [clock (1)]
   12     0     0     0  WL      (threaded)                  [intr]
100012                   I                                   [swi6: task queue]
100013                   I                                   [swi6: Giant taskq]
100015                   I                                   [swi5: fast 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    0xfffffe0054247040  [init]
   10     0     0     0  DL      audit_w 0xffffffff838886c0  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff836e8720  [swapper]
100005                   D       -       0xfffffe00085f3a00  [softirq_0]
100006                   D       -       0xfffffe00085f3800  [softirq_1]
100007                   D       -       0xfffffe00085f3600  [if_io_tqg_0]
100008                   D       -       0xfffffe00085f3400  [if_io_tqg_1]
100009                   D       -       0xfffffe00085f3200  [if_config_tqg_0]
100010                   D       -       0xfffffe00085f3000  [pci_hp taskq]
100011                   D       -       0xfffffe00085f2d00  [kqueue_ctx taskq]
100014                   D       -       0xfffffe00085f2700  [thread taskq]
100016                   D       -       0xfffffe00085f2300  [aiod_kick taskq]
100017                   D       -       0xfffffe00085f2100  [deferred_unmount ta]
100018                   D       -       0xfffffe00085f1e00  [inm_free taskq]
100019                   D       -       0xfffffe00085f1c00  [in6m_free taskq]
100020                   D       -       0xfffffe00085f1a00  [linuxkpi_irq_wq]
100021                   D       -       0xfffffe00085f1800  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe00085f1800  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe00085f1800  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe00085f1800  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe00085f1300  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe00085f1300  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe00085f1300  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe00085f1300  [linuxkpi_long_wq_3]
100034                   D       -       0xfffffe00085f0800  [firmware taskq]
100039                   D       -       0xfffffe00085f0200  [crypto_0]
100040                   D       -       0xfffffe00085f0200  [crypto_1]
100055                   D       -       0xfffffe00571ba800  [vtnet0 rxq 0]
100056                   D       -       0xfffffe00571ba700  [vtnet0 txq 0]
100057                   D       -       0xfffffe00571ba600  [vtnet0 rxq 1]
100058                   D       -       0xfffffe00571ba500  [vtnet0 txq 1]
100062                   D       vtbslp  0xfffffe00571e3180  [virtio_balloon]
100066                   D       -       0xffffffff826f9920  [deadlkres]
100070                   D       -       0xfffffe0057914500  [acpi_task_0]
100071                   D       -       0xfffffe0057914500  [acpi_task_1]
100072                   D       -       0xfffffe0057914500  [acpi_task_2]
100074                   D       -       0xfffffe00085f4100  [mca taskq]
100075                   D       -       0xfffffe00571bb000  [CAM taskq]
100118                   D       -       0xfffffe0057912300  [netlink_socket (PID]
db> show all locks
Process 773 (syz-executor2655856) thread 0xfffffe006fead740 (100114)
exclusive sleep mutex so_rcv (so_rcv) r = 0 (0xfffffe006d3f81a0) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:777
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xfffffe006d3f8180) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_socket.c:4075
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
          tcp_hpts            7         4801K            7
            devbuf         4192         4324K         4217
         sysctloid        34817         2052K        34888
             vtbuf           24         1968K           46
              kobj          326         1304K          488
            newblk          829         1231K          841
          vfscache            3         1025K            3
               pcb           24          669K           43
          inodedep           49          530K           71
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
         vnet_data            2          224K            2
          acpitask            1          224K            1
           subproc          107          186K          841
            acpica         1674          184K        60830
           tidhash            3          141K            3
              vmem            3          134K            4
           pagedep           14          132K           18
            linker          352          130K          386
        tfo_ccache            1          128K            1
          IP reass            1          128K            1
               sem            4          106K            4
            DEVFS1          105          105K          114
        gtaskqueue           18           98K           18
               bus          985           81K         5155
          mtx_pool            2           72K            2
          syncache            1           68K            1
     NFSD srvcache            3           68K            3
            module          513           65K          513
       ddb_capture            1           64K            1
              temp           18           37K         1564
           kdtrace          159           33K          893
         hostcache            1           32K            1
               shm            1           32K            1
              umtx          256           32K          256
            DEVFS3          124           31K          134
               msg            4           30K            4
            kbdmux            6           28K            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         1687
      eventhandler          161           14K          161
            KTRACE          100           13K          100
              kenv           95           12K           95
            ifaddr           30           12K           32
              GEOM           61           11K          481
          routetbl           50           11K          176
              rman           86           11K          429
         CAM queue            5           11K         1528
         bmsafemap            3            9K           40
               rpc            4            9K            4
           devstat            4            9K            4
              UART           12            9K           12
              ksem            1            8K            1
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
     audit_evclass          238            8K          300
         taskqueue           66            7K           66
            sglist            6            7K            6
           CAM DEV            3            6K          510
              cred           23            6K          274
         pfs_nodes           20            5K           20
             hhook           15            5K           17
       ufs_dirhash           24            5K           24
               UMA          267            5K          267
            dirrem           17            5K           28
            plimit           17            5K          322
             ifnet            3            5K            3
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
          filedesc            1            4K            1
             evdev            4            4K            4
           acpisem           28            4K           28
       ether_multi           40            4K           50
            diradd           25            4K           36
           lltable           11            4K           11
          pf_ifnet            5            3K            6
         in6_multi           25            3K           25
          terminal           11            3K           11
           session           20            3K           31
            kqueue           40            3K          776
           pwddesc           40            3K          774
             clone            9            3K            9
           uidinfo            3            3K            8
         proc-args           62            3K         1696
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
            Unitno           27            2K           41
           CAM XPT           22            2K          543
             lockf           15            2K           22
               msi           12            2K           12
         toponodes            6            2K            6
       ipsecpolicy            2            2K            2
             selfd           20            2K        12771
           acpidev           20            2K           20
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
       vnodemarker            2            1K            8
      NFSD session            1            1K            1
            select            7            1K           29
        CAM periph            4            1K          271
             ipsec            3            1K            3
          indirdep            3            1K            3
            CC Mem            3            1K            7
             nhops            6            1K            6
              pfil            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
           netlink            3            1K           13
            ip6ndp            4            1K            5
 encap_export_host           12            1K           12
         newdirblk            4            1K            8
             mkdir            4            1K           16
          in_multi            2            1K            4
              cdev            2            1K            2
       lkpikmalloc            8            1K            9
               osd            8            1K           20
    chacha20random            1            1K            1
            biobuf            1            1K            1
       inpcbpolicy           10            1K          137
          sctp_ifn            2            1K            6
               mld            2            1K            2
              igmp            2            1K            2
            vnodes            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
            DEVFSP            4            1K            9
             DEVFS            9            1K           10
           CAM SIM            2            1K            2
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            7
            prison            6            1K            6
         cryptodev            2            1K           49
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
          procdesc            1            1K            6
          pmchooks            1            1K            1
          CAM path            4            1K         1034
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
            soname            4            1K         3328
          filecaps            4            1K           66
               tun            3            1K            3
          sctp_vrf            1            1K            1
          freework            1            1K           26
              vnet            1            1K            1
               pmc            1            1K            1
           entropy            2            1K           35
          acpiintr            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
        sctp_mcore            0            0K            0
        sctp_socko            0            0K            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
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
     pf_krule_item            0            0K            0
           pf_temp            0            0K            0
            ipcomp            0            0K            0
               esp            0            0K            0
                ah            0            0K            0
            tcp_do            0            0K            0
           tcp_fsb            0            0K            0
            mqdata            0            0K            0
           filemon            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
               ixl            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
       fpukern_ctx            0            0K            0
          xen_intr            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            bounce            0            0K            0
            busdma            0            0K            0
            qpidrv            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
        aesni_data            0            0K            0
            xenbus            0            0K            0
     vm_fictitious            0            0K            0
           UMAHash            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K           14
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            2
           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
          freefile            0            0K            9
          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
          ktls_ocf            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
       simple_attr            0            0K            0
          seq_file            0            0K            0
           lkpiskb            0            0K            0
             radix            0            0K            0
               idr            0            0K            0
          lkpindev            0            0K            0
           lkpimhi            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
               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
            statfs            0            0K          196
     namei_tracker            0            0K            0
       export_host            0            0K            0
        cl_savebuf            0            0K            5
               aio            0            0K            0
               lio            0            0K            0
               acl            0            0K            0
          mbuf_tag            0            0K            0
              ktls            0            0K            0
              accf            0            0K            0
               pts            0            0K            0
           timerfd            0            0K            0
               iov            0            0K        13552
          ioctlops            0            0K           85
           eventfd            0            0K            0
           Witness            0            0K            0
             stack            0            0K            0
              sbuf            0            0K          288
          firmware            0            0K            0
        compressor            0            0K            0
              SWAP            0            0K            0
         sysctltmp            0            0K          649
            sysctl            0            0K            3
              ekcd            0            0K            0
            dumper            0            0K            0
          sendfile            0            0K            0
              rctl            0            0K            0
             cache            0            0K            0
          kcovinfo            0            0K            0
      prison_racct            0            0K            0
       Fail Points            0            0K            0
             sigio            0            0K            1
filedesc_to_leader            0            0K            0
               pwd            0            0K            0
       tty console            0            0K            0
         boottrace            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
     tmpfs extattr            0            0K            0
           NFS FHA            0            0K            0
         newnfsmnt            0            0K            0
  newnfsclient_req            0            0K            0
   NFSCL layrecall            0            0K            0
     NFSCL session            0            0K            0
     NFSCL sockreq            0            0K            0
     NFSCL devinfo            0            0K            0
     NFSCL flayout            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
      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
      NFSD V4state            0            0K            0
       msdosfs_fat            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
            DEVFS4            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
               xnb            0            0K            0
          xen_acpi            0            0K            0
              xbbd            0            0K            0
               xbd            0            0K            0
           Balloon            0            0K            0
          sysmouse            0            0K            0
            vtfont            0            0K            0
            pvscsi            0            0K            0
            USBdev            0            0K            0
               USB            0            0K            0
            twsbuf            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
       SIIS driver            0            0K            0
               PUC            0            0K            0
          ppbusdev            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
          mrsasbuf            0            0K            0
          mpt_user            0            0K            0
          mps_user            0            0K            0
            MPSSAS            0            0K            0
               mps            0            0K            0
          mpr_user            0            0K            0
            MPRSAS            0            0K            0
               mpr            0            0K            0
            mfibuf            0            0K            0
        md_sectors            0            0K            0
           md_disk            0            0K            0
           malodev            0            0K            0
               LED            0            0K            0
          ix_sriov            0            0K            0
                ix            0            0K            0
            ipsbuf            0            0K            0
         ciss_data            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
       AHCI driver            0            0K            0
               agp            0            0K            0
           acpipwr            0            0K            0
         acpi_perf            0            0K            0
         acpicmbat            0            0K            0
        aacraidcam            0            0K            0
       aacraid_buf            0            0K            0
            aaccam            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
         scsi_pass            0            0K            0
           scsi_da            0            0K           69
            ata_da            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
           nvme_da            0            0K            0
           CAM CCB            0            0K          523
     CAM ccb queue            0            0K            0
db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320    1078       15538       0     254   38494208        0
              mbuf    256    8577    1085       18901       0     254    2473472        0
          BUF TRIE    144     192   11624         551       0      62    1701504        0
        malloc-384    384    4155      45        4157       0      30    1612800        0
        malloc-128    128   12016     105       12810       0     126    1551488        0
       malloc-4096   4096     369       3        1821       0       2    1523712        0
       UMA Slabs 0    112   10670      16       10670       0     126    1196832        0
      mbuf_cluster   2048     508       0         508       0     254    1040384        0
         vmem btag     56   15529      62       15529       0     254     873096        0
              pbuf   2624       0     246           0       0       2     645504        0
         FFS inode   1168     499      19         508       0       8     605024        0
            lkpimm    176       1    3081           1       0      62     542432        0
          lkpicurr    176       2    3080           2       0      62     542432        0
        RADIX NODE    144    3263     176       23924       0      62     495216        0
            socket    960      19     489        1313       0     254     487680        0
        256 Bucket   2048     118      18         974       0       8     278528        0
      malloc-65536  65536       4       0           4       0       1     262144        0
         malloc-64     64    3909     186        3930       0     254     262080        0
         VM OBJECT    264     923      67       14121       0      30     261360        0
             VNODE    448     529      47         540       0      30     258048        0
        malloc-256    256     877      53        1006       0      62     238080        0
            THREAD   1824     118      10         118       0       8     233472        0
         malloc-16     16   14394     106       14506       0     254     232000        0
            DEVCTL   1024       0     220         123       0       0     225280        0
      malloc-65536  65536       1       2         111       0       1     196608        0
         UMA Zones    768     239       0         239       0      16     183552        0
         malloc-32     32    5303     367        5345       0     254     181440        0
        malloc-128    128    1144     251       28340       0     126     178560        0
       malloc-2048   2048      10      70         517       0       8     163840        0
       malloc-1024   1024     116      28         130       0      16     147456        0
       FFS2 dinode    256     499      71         508       0      62     145920        0
      malloc-65536  65536       0       2          52       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-32768  32768       4       0           4       0       1     131072        0
             unpcb    256       7     503        1158       0     254     130560        0
       mbuf_packet    256       0     508         117       0     254     130048        0
       S VFS Cache    104     966     204        1005       0     126     121680        0
         MAP ENTRY     96     893     367       40281       0     126     120960        0
          ksiginfo    112      40    1004          55       0     126     116928        0
     FPU_save_area    832     120      15         132       0      16     112320        0
              PROC   1376      39      27         773       0       8      90816        0
          UMA Kegs    384     226       7         226       0      30      89472        0
        128 Bucket   1024      44      39         242       0      16      84992        0
             g_bio    408       0     180        4500       0      30      73440        0
         malloc-64     64     514     557        1474       0     254      68544        0
         malloc-64     64     522     549        1648       0     254      68544        0
        malloc-128    128     308     219         531       0     126      67456        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       2       0           2       0       1      65536        0
      malloc-32768  32768       0       2         120       0       1      65536        0
       malloc-4096   4096      14       2          25       0       2      65536        0
       malloc-1024   1024      16      48         524       0      16      65536        0
        malloc-256    256     159      96         511       0      62      65280        0
       malloc-4096   4096      13       1          13       0       2      57344        0
         64 Bucket    512      66      38         974       0      30      53248        0
         filedesc0   1072      40       9         774       0       8      52528        0
         malloc-64     64     270     549       26305       0     254      52416        0
        malloc-128    128     289     114         292       0     126      51584        0
        malloc-128    128     239     164         647       0     126      51584        0
        malloc-256    256     170      25         210       0      62      49920        0
        malloc-256    256      91     104         478       0      62      49920        0
         32 Bucket    256      56     139        3214       0      62      49920        0
           DIRHASH   1024      35      13          35       0      16      49152        0
             NAMEI   1024       0      48       12079       0      16      49152        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-8192   8192       6       0           6       0       1      49152        0
       malloc-2048   2048       4      20         536       0       8      49152        0
        malloc-384    384      67      53         410       0      30      46080        0
          syncache    168       0     264           5       0     254      44352        0
       malloc-8192   8192       3       2         106       0       1      40960        0
              pipe    728       7      48         282       0      16      40040        0
         udp_inpcb    424       6      84         126       0      30      38160        0
            da_ccb    544       0      70        1257       0      16      38080        0
            pcpu-8      8    4267     341        4295       0     254      36864        0
         malloc-64     64       7     560          22       0     254      36288        0
         malloc-64     64      80     487        2124       0     254      36288        0
         malloc-64     64      17     550          49       0     254      36288        0
         malloc-64     64      49     518         298       0     254      36288        0
        malloc-128    128      20     259          74       0     126      35712        0
        malloc-128    128      47     232        3308       0     126      35712        0
        malloc-128    128      65     214         137       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      55      35          97       0      30      34560        0
        malloc-256    256      62      73        1030       0      62      34560        0
        malloc-256    256      21     114          59       0      62      34560        0
        malloc-256    256      28     107         448       0      62      34560        0
        malloc-256    256      24     111         290       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-16384  16384       2       0           2       0       1      32768        0
      malloc-16384  16384       0       2         160       0       1      32768        0
       malloc-8192   8192       3       1          29       0       1      32768        0
       malloc-2048   2048       2      14          14       0       8      32768        0
       malloc-2048   2048       3      13           4       0       8      32768        0
       malloc-2048   2048       4      12          30       0       8      32768        0
       malloc-2048   2048       1      15          51       0       8      32768        0
       malloc-2048   2048       2      14           2       0       8      32768        0
       malloc-2048   2048       4      12         195       0       8      32768        0
       malloc-1024   1024       2      30          42       0      16      32768        0
       malloc-1024   1024       1      31         868       0      16      32768        0
       malloc-1024   1024       5      27         160       0      16      32768        0
       malloc-1024   1024      10      22          14       0      16      32768        0
       malloc-1024   1024      16      16          20       0      16      32768        0
       malloc-1024   1024       3      29           3       0      16      32768        0
        malloc-512    512       1      63         119       0      30      32768        0
        malloc-512    512       2      62           8       0      30      32768        0
        malloc-512    512       8      56          18       0      30      32768        0
        malloc-512    512       2      62          53       0      30      32768        0
        malloc-512    512       1      63          11       0      30      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
            ttyinq    160     135      65         300       0      62      32000        0
              PGRP    120      20     244          31       0     126      31680        0
            clpbuf   2624       0      12          26       0       4      31488        0
           VMSPACE    616      23      25         758       0      16      29568        0
        sctp_laddr     48       0     588           4       0     254      28224        0
         malloc-32     32     289     593         545       0     254      28224        0
         16 Bucket    144      52     144         264       0      62      28224        0
          4 Bucket     48       7     581           9       0     254      28224        0
         TURNSTILE    136     129      60         129       0      62      25704        0
            cpuset    200       7     121           7       0      62      25600        0
             ripcb    392       1      62           4       0      30      24696        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-4096   4096       4       2           5       0       2      24576        0
    ertt_txseginfo     40       0     606         289       0     254      24240        0
          rl_entry     40      33     573          33       0     254      24240        0
               PWD     40      10     596          99       0     254      24240        0
           rtentry    168      13     131          17       0      62      24192        0
             Files     80      72     228        6513       0     126      24000        0
          8 Bucket     80      50     250         277       0     126      24000        0
         tcp_inpcb   1312       3      15           7       0       8      23616        0
        malloc-384    384      14      46          14       0      30      23040        0
        malloc-384    384      53       7          54       0      30      23040        0
        malloc-384    384       2      58           3       0      30      23040        0
       Mountpoints   2816       2       6           2       0       4      22528        0
        SLEEPQUEUE     88     129     127         129       0     126      22528        0
         hostcache     64       1     314           1       0     254      20160        0
   udp_inpcb ports     32       3     627          40       0     254      20160        0
              ertt     72       3     277           7       0     126      20160        0
         malloc-32     32      58     572         137       0     254      20160        0
         malloc-32     32      55     575         492       0     254      20160        0
         malloc-32     32     110     520        1910       0     254      20160        0
         malloc-32     32      50     580         196       0     254      20160        0
         malloc-32     32      25     605        2961       0     254      20160        0
          2 Bucket     32      45     585         290       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-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       1       3           2       0       2      16384        0
       malloc-4096   4096       1       3         200       0       2      16384        0
        malloc-512    512       5      27           5       0      30      16384        0
        malloc-512    512       1      31           1       0      30      16384        0
           SMR CPU     32       7     504           7       0     254      16352        0
              kenv    258      17      43        1069       0      30      15480        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
   tcp_inpcb ports     32       1     377           1       0     254      12096        0
         malloc-32     32       6     372          53       0     254      12096        0
             KNOTE    160       0      75           7       0      62      12000        0
         malloc-16     16      11     739          56       0     254      12000        0
         malloc-16     16      61     689         240       0     254      12000        0
         malloc-16     16      27     723          30       0     254      12000        0
         malloc-16     16     200     550        3246       0     254      12000        0
         malloc-16     16       6     744           9       0     254      12000        0
         malloc-16     16     278     472        1481       0     254      12000        0
         malloc-16     16      19     731       27741       0     254      12000        0
        malloc-384    384       3      27           4       0      30      11520        0
        malloc-384    384       1      29           1       0      30      11520        0
           pcpu-16     16       8     504           8       0     254       8192        0
      vtnet_tx_hdr     24       0     334        2412       0     254       8016        0
       UMA Slabs 1    176       8      14           8       0      62       3872        0
        KMAP ENTRY     96      12      27          14       0       0       3744        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    152       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    352       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_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
      tcp_rack_pcb   1024       0       0           0       0      16          0        0
      tcp_rack_map    128       0       0           0       0     126          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
               ipq     56       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   1176       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
        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    232       0       0           0       0      62          0        0
           NCLNODE    608       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     32       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    104       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      16          0        0
           nfspbuf   2624       0       0           0       0       4          0        0
            swwbuf   2624       0       0           0       0       2          0        0
            swrbuf   2624       0       0           0       0       4          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-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-8192   8192       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
        malloc-512    512       0       0           0       0      30          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 (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/01/05 16:06 freebsd-src 24cd5c26fe3e 28c42cff console log report syz C ci-freebsd-main panic: sbflush_internal: ccc NUM mb ADDR mbcnt NUM
2024/01/05 09:06 freebsd-src 1809089a9613 28c42cff console log report syz C ci-freebsd-i386 panic: sbflush_internal: ccc NUM mb ADDR mbcnt NUM
2024/01/05 08:17 freebsd-src 1809089a9613 28c42cff console log report ci-freebsd-i386 panic: sbflush_internal: ccc NUM mb ADDR mbcnt NUM
* Struck through repros no longer work on HEAD.