syzbot


panic: Assertion error == NUM || error == EINTR || error == ERESTART failed at /syzkaller/managers/i386/kernel/sys/net/i

Status: upstream: reported on 2026/01/14 09:02
Reported-by: syzbot+90c6462c22ae1e6a79d6@syzkaller.appspotmail.com
First crash: 10d, last: 10d

Sample crash report:
panic: Assertion error == 0 || error == EINTR || error == ERESTART failed at /syzkaller/managers/i386/kernel/sys/net/if_tuntap.c:1310
cpuid = 1
time = 1768381298
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe00570bffd0
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe00570c0130
vpanic() at vpanic+0x257/frame 0xfffffe00570c02f0
panic() at panic+0xb5/frame 0xfffffe00570c03b0
tundtor() at tundtor+0x9ef/frame 0xfffffe00570c0440
devfs_destroy_cdevpriv() at devfs_destroy_cdevpriv+0x183/frame 0xfffffe00570c0480
devfs_close_f() at devfs_close_f+0xb6/frame 0xfffffe00570c04c0
_fdrop() at _fdrop+0x5c/frame 0xfffffe00570c04f0
closef() at closef+0x655/frame 0xfffffe00570c06d0
fdescfree() at fdescfree+0xa5e/frame 0xfffffe00570c08b0
exit1() at exit1+0x887/frame 0xfffffe00570c0950
sigexit() at sigexit+0x213/frame 0xfffffe00570c0a70
postsig() at postsig+0x2c5/frame 0xfffffe00570c0bf0
ast_sig() at ast_sig+0x85b/frame 0xfffffe00570c0ea0
ast_handler() at ast_handler+0x2b0/frame 0xfffffe00570c0f10
ast() at ast+0x25/frame 0xfffffe00570c0f30
doreti_ast() at doreti_ast+0x1c/frame 0xdffdbf2c
KDB: enter: panic
[ thread pid 944 tid 100385 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x2587a77(%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         0xfffffe0002bf1850
rdx                          0
rbx         0xffffffff8283c160  .str.27
rsp         0xfffffe00570c0110
rbp         0xfffffe00570c0130
rsi                          0
rdi         0xffffffff81664139  printf+0x149
r8                           0
r9                  0xffffffff
r10                        0x1
r11                        0x6
r12         0xfffffe0058b28000
r13         0xfffffffffffffffd
r14         0xffffffff8283c160  .str.27
r15                          0
rip         0xffffffff8164d41e  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x2587a77(%rip)
db> show proc
Process 944 (syz-executor) at 0xfffffe0058b0b018:
 state: NORMAL
 uid: 0 gid: 0 supp gids: 0, 5
 parent: pid 1 at 0xfffffe0007809010
 ABI: FreeBSD ELF32
 flag: 0x1000a000  flag2: 0x40000
 arguments: ./syz-executor exec
 reaper: 0xfffffe0007809010 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe000780f000
   (map 0xfffffe000780f000)
   (map.pmap 0xfffffe000780f0a0)
   (pmap 0xfffffe000780f110)
 threads: 1
100385                   Run     CPU 1                       syz-executor
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  952   766   766     0  R       (threaded)                  syz-executor
100367                   Run     CPU 0                       syz-executor
100397                   S       select  0xfffffe006df99b40  syz-executor
100398                   S       connec  0xfffffe006b88a8da  syz-executor
  951   764   764     0  R       (threaded)                  syz-executor
100347                   RunQ                                syz-executor
100393                   S       select  0xfffffe006df98340  syz-executor
100395                   S       select  0xfffffe006df98240  syz-executor
100396                   S       uwait   0xfffffe0059a2db00  syz-executor
  950   763   763     0  R       (threaded)                  syz-executor
100329                   RunQ                                syz-executor
100392                   S       select  0xfffffe0059a8ce40  syz-executor
100394                   S       uwait   0xfffffe00585f3400  syz-executor
  949   946   946     0  R                                   ifconfig
  947     1   766     0  S       uwait   0xfffffe0058695e80  syz-executor
  946   762   946     0  S       wait    0xfffffe0058ad9568  syz-executor
  944     1   765     0  RE      CPU 1                       syz-executor
  939     1   764     0  S       uwait   0xfffffe00585f4b80  syz-executor
  912     1   763     0  S       uwait   0xfffffe00585f4200  syz-executor
  911     1   911     0  S       uwait   0xfffffe00585f4c80  syz-executor
  909     1   763     0  T                                   syz-executor
  905     1   764     0  S       uwait   0xfffffe0058697a80  syz-executor
  900     0     0     0  DL      mdwait  0xfffffe006bb18000  [md0]
  897     1   763     0  S       uwait   0xfffffe0059a2ee80  syz-executor
  884     1   764     0  S       uwait   0xfffffe0059a2f700  syz-executor
  880     1   880     0  S       uwait   0xfffffe0058695300  syz-executor
  874     1   764     0  S       uwait   0xfffffe0059a2ed80  syz-executor
  862     1   764     0  T       uwait   0xfffffe00585f3a00  syz-executor
  855     1   764 60928  S       uwait   0xfffffe00585f4980  syz-executor
  851     1   764     0  S       uwait   0xfffffe0059a2dd00  syz-executor
  826     1   826     0  S       uwait   0xfffffe0059a2f400  syz-executor
  825     0     0     0  DL      aiordy  0xfffffe0058b0a010  [aiod4]
  824     0     0     0  DL      aiordy  0xfffffe0058b0a568  [aiod3]
  823     0     0     0  DL      aiordy  0xfffffe0058aa8568  [aiod2]
  822     0     0     0  DL      aiordy  0xfffffe0058b0aac0  [aiod1]
  817   804   817     0  Ss      select  0xfffffe006e8e56c0  dhclient
  811     1   811     0  Ss      select  0xfffffe006df99240  dhclient
  804   787   423    65  S       select  0xfffffe006e8e5b40  dhclient
  787   423   423     0  S       wait    0xfffffe0058af4018  sh
  766   762   766     0  S       nanslp  0xffffffff83bb5f40  syz-executor
  764   762   764     0  S       nanslp  0xffffffff83bb5f40  syz-executor
  763   762   763     0  S       nanslp  0xffffffff83bb5f40  syz-executor
  762   760   760     0  S       select  0xfffffe0059a89340  syz-executor
  760   758   760     0  Ss      sigsusp 0xfffffe0058ad90c0  csh
  758   681   758     0  Ss      select  0xfffffe006df997c0  sshd
  747     1   747     0  Ss+     ttyin   0xfffffe005422dcb0  getty
  746     1   746     0  Ss+     ttyin   0xfffffe00599528b0  getty
  745     1   745     0  Ss+     ttyin   0xfffffe00599530b0  getty
  744     1   744     0  Ss+     ttyin   0xfffffe00599538b0  getty
  743     1   743     0  Ss+     ttyin   0xfffffe0007bf70b0  getty
  742     1   742     0  Ss+     ttyin   0xfffffe0007bf78b0  getty
  741     1   741     0  Ss+     ttyin   0xfffffe0007bf80b0  getty
  740     1   740     0  Ss+     ttyin   0xfffffe0007bf88b0  getty
  739     1   739     0  Ss+     ttyin   0xfffffe0007bf90b0  getty
  737     1    17     0  S+      piperd  0xfffffe0059bb5420  logger
  736   735    17     0  S+      nanslp  0xffffffff83bb5f40  sleep
  735     1    17     0  S+      wait    0xfffffe0058ad7558  sh
  685     1   685     0  Ss      nanslp  0xffffffff83bb5f40  cron
  681     1   681     0  Ss      select  0xfffffe0059a89040  sshd
  494     1   494     0  Ss      select  0xfffffe0059a89940  syslogd
  423     1   423     0  Ss      wait    0xfffffe0058aa9018  devd
  422     1   422    65  Ss      select  0xfffffe0059a0dbc0  dhclient
  337     1   337     0  Ss      select  0xfffffe006df99cc0  dhclient
  334     1   334     0  Ss      select  0xfffffe0059a89cc0  dhclient
   16     0     0     0  DL      syncer  0xffffffff83ce3ae0  [syncer]
   15     0     0     0  DL      vlruwt  0xfffffe000780a018  [vnlru]
   14     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff83ce2020  [bufdaemon]
100082                   D       -       0xffffffff83001ec0  [bufspacedaemon-0]
100093                   D       sdflush 0xfffffe0057f1fce8  [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83d23380  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff83d09448  [dom0]
100080                   D       launds  0xffffffff83d09454  [laundry: dom0]
100081                   D       umarcl  0xffffffff81e37c30  [uma]
    7     0     0     0  DL      -       0xffffffff8392e510  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff84868f80  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff84736700  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100045                   D       -       0xffffffff838f8340  [doneq0]
100046                   D       -       0xffffffff838f82c0  [async]
100075                   D       -       0xffffffff838f8140  [scanner]
    3     0     0     0  DL      (threaded)                  [crypto]
100042                   D       crypto_ 0xffffffff83d04ce0  [crypto]
100043                   D       crypto_ 0xfffffe00077af830  [crypto returns 0]
100044                   D       crypto_ 0xfffffe00077af880  [crypto returns 1]
   13     0     0     0  DL      (threaded)                  [geom]
100037                   D       -       0xffffffff83b5e520  [g_event]
100038                   D       -       0xffffffff83b5e540  [g_up]
100039                   D       -       0xffffffff83b5e560  [g_down]
    2     0     0     0  WL      (threaded)                  [clock]
100031                   I                                   [clock (0)]
100032                   I                                   [clock (1)]
   12     0     0     0  WL      (threaded)                  [intr]
100013                   I                                   [swi6: task queue]
100014                   I                                   [swi6: Giant taskq]
100016                   I                                   [swi5: fast taskq]
100033                   I                                   [swi1: netisr 0]
100034                   I                                   [swi1: hpts]
100035                   I                                   [swi1: hpts]
100047                   I                                   [irq24: virtio_pci0]
100048                   I                                   [irq25: virtio_pci0]
100049                   I                                   [irq26: virtio_pci0]
100050                   I                                   [irq27: virtio_pci0]
100051                   I                                   [irq28: virtio_pci1]
100052                   I                                   [irq29: virtio_pci1]
100053                   I                                   [irq30: virtio_pci1]
100054                   I                                   [irq31: virtio_pci1]
100055                   I                                   [irq32: virtio_pci1]
100060                   I                                   [irq10: virtio_pci2]
100062                   I                                   [irq1: atkbd0]
100063                   I                                   [irq12: psm0]
100064                   I                                   [swi0: uart uart++]
100068                   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    0xfffffe0007809010  [init]
   10     0     0     0  DL      audit_w 0xffffffff83d05780  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       -       0xffffffff84c5dff0  [kernel]
100005                   D       -       0xfffffe00077cb000  [softirq_0]
100006                   D       -       0xfffffe00077cae00  [softirq_1]
100007                   D       -       0xfffffe00077cad00  [if_io_tqg_0]
100008                   D       -       0xfffffe00077cac00  [if_io_tqg_1]
100009                   D       -       0xfffffe00077cab00  [if_config_tqg_0]
100010                   D       -       0xfffffe00077caa00  [kqueue_ctx taskq]
100011                   D       -       0xfffffe00077ca900  [jail_remove taskq]
100012                   D       -       0xfffffe00077ca800  [bus taskq]
100015                   D       -       0xfffffe00077ca500  [thread taskq]
100017                   D       -       0xfffffe00077ca300  [aiod_kick taskq]
100018                   D       -       0xfffffe00077ca200  [deferred_unmount ta]
100019                   D       -       0xfffffe00077ca100  [inm_free taskq]
100020                   D       -       0xfffffe00077ca000  [in6m_free taskq]
100021                   D       -       0xfffffe00077c9e00  [linuxkpi_irq_wq]
100022                   D       -       0xfffffe00077c9d00  [linuxkpi_short_wq_0]
100023                   D       -       0xfffffe00077c9d00  [linuxkpi_short_wq_1]
100024                   D       -       0xfffffe00077c9d00  [linuxkpi_short_wq_2]
100025                   D       -       0xfffffe00077c9d00  [linuxkpi_short_wq_3]
100026                   D       -       0xfffffe00077c9c00  [linuxkpi_long_wq_0]
100027                   D       -       0xfffffe00077c9c00  [linuxkpi_long_wq_1]
100028                   D       -       0xfffffe00077c9c00  [linuxkpi_long_wq_2]
100029                   D       -       0xfffffe00077c9c00  [linuxkpi_long_wq_3]
100036                   D       -       0xfffffe00077c9b00  [firmware taskq]
100040                   D       -       0xfffffe00077c9100  [crypto_0]
100041                   D       -       0xfffffe00077c9100  [crypto_1]
100056                   D       -       0xfffffe00077c8900  [vtnet0 rxq 0]
100057                   D       -       0xfffffe00077c8800  [vtnet0 txq 0]
100058                   D       -       0xfffffe00077c8700  [vtnet0 rxq 1]
100059                   D       -       0xfffffe00077c8600  [vtnet0 txq 1]
100061                   D       vtbslp  0xfffffe005800d900  [virtio_balloon]
100065                   D       -       0xffffffff82840841  [deadlkres]
100069                   D       -       0xfffffe00077c8b00  [acpi_task_0]
100070                   D       -       0xfffffe00077c8b00  [acpi_task_1]
100071                   D       -       0xfffffe00077c8b00  [acpi_task_2]
100073                   D       -       0xfffffe00077cb100  [mca taskq]
100074                   D       -       0xfffffe00077c8a00  [CAM taskq]
100076                   D       -       0xfffffe00077c8300  [ipsec_offload]
100380                   D       -       0xfffffe0059a74300  [netlink_socket (PID]
db> show all locks
Process 949 (ifconfig) thread 0xfffffe0058abd000 (100095)
exclusive sx ifnet_detach_sx (ifnet_detach_sx) r = 0 (0xffffffff83ce4280) locked @ /syzkaller/managers/i386/kernel/sys/net/if.c:2904
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            6        12804K            6
            devbuf         8283         7252K         8309
            linker          385         5207K          579
          tcp_hpts            8         4865K            8
         sysctloid        35182         2073K        35257
             vtbuf           24         1968K           46
              kobj          337         1348K          510
            newblk           22         1030K         1007
          vfscache            3         1025K            3
               pcb           30          674K          119
          inodedep           25          521K          318
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
          filedesc           48          377K          326
           subproc          150          314K         1037
         vnet_data            2          224K            2
          acpitask            1          224K            1
            KTRACE          101          201K         8149
            acpica         1674          184K        56977
              vmem            5          144K            7
           tidhash            3          141K            3
           pagedep           14          132K          177
        tfo_ccache            1          128K            1
          IP reass            1          128K            1
            DEVFS1          107          107K          124
               sem            4          106K            4
        gtaskqueue           18           98K           18
               bus         1015           83K         5167
               LRO           20           83K           22
          mtx_pool            3           74K            3
          syncache            1           68K            1
     NFSD srvcache            3           68K            3
            module          529           67K          529
       ddb_capture            1           64K            1
           kdtrace          220           42K         1353
              umtx          320           40K          320
               BPF           22           36K           28
         hostcache            1           32K            1
               shm            1           32K            3
            DEVFS3          126           32K          136
               msg            4           30K            4
            kbdmux            6           28K            6
          routetbl          172           23K          506
              temp           29           21K         2120
        DEVFS_RULE           56           20K           56
            ifaddr           72           20K           74
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
              cred           41           16K          314
           ithread           90           15K           90
            bus-sc           34           15K         1690
           lltable           47           15K           52
      eventhandler          170           14K          170
       ether_multi          144           12K          180
              kenv           95           12K           95
              GEOM           54           12K          457
             shmfd            7           11K           13
         CAM queue            5           11K         1528
            plimit           26           10K          351
              rman           75           10K          430
               rpc            8            9K            8
         bmsafemap            3            9K          283
           devstat            4            9K            4
              UART           12            9K           12
              ksem            1            8K            1
           filemon            1            8K            2
       pfs_vncache            1            8K            1
         in6_multi           58            8K           65
     audit_evclass          240            8K          306
         taskqueue           72            8K           81
             ifnet            7            7K            7
            sglist            6            7K            6
           CAM DEV            3            6K          510
            kqueue           75            6K         1025
         pfs_nodes           22            6K           22
       ufs_dirhash           24            5K           27
               UMA          269            5K          269
           pwddesc           70            5K          958
          pf_ifnet           10            5K           20
                vt           11            5K           11
           md_disk            2            5K            3
           memdesc            1            4K            1
               MCA           32            4K           32
        md_sectors            1            4K            1
             evdev            4            4K            4
            DEVFSP           56            4K           84
           acpisem           28            4K           28
             selfd           48            3K        43540
         proc-args           99            3K         2004
          kcovinfo           45            3K           45
          terminal           11            3K           11
           session           22            3K           36
            CC Mem           20            3K          120
           uidinfo            5            3K           12
           acpidev           20            3K           20
             hhook            8            3K           10
            dirrem            9            3K          241
           netlink            2            3K           86
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
             clone            8            2K            8
             lockf           19            2K           37
            select           15            2K          103
            ip6ndp           12            2K           14
           CAM XPT           22            2K          543
            Unitno           25            2K           53
          in_multi            6            2K           12
               tun            4            2K            4
         toponodes            6            2K            6
          sctp_ifa           11            2K           14
             mkdir           11            2K          310
       ipsecpolicy            2            2K            2
         sctp_atcl            3            2K           24
               msi            9            2K            9
       inpcbpolicy           36            2K          382
         sctp_stro            1            1K            1
           softdep            1            1K            1
         newdirblk            8            1K          155
            diradd            8            1K          261
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           28
      NFSD session            1            1K            1
               mld            7            1K            7
              igmp            7            1K            7
        CAM periph            4            1K          271
               osd           25            1K          137
          freework            4            1K          242
             ipsec            3            1K            3
          freeblks            3            1K          178
          indirdep            3            1K          127
              pfil            6            1K            6
           inotify            3            1K           13
            isadev            6            1K            6
             mount           16            1K          475
          pci_link           10            1K           10
          sctp_ifn            5            1K           14
          freefile            5            1K          194
            crypto            4            1K           17
 encap_export_host           12            1K           12
              cdev            2            1K            2
       lkpikmalloc            8            1K            9
      counter_rate           13            1K           13
    chacha20random            1            1K            1
           VN POLL            3            1K            7
            biobuf            1            1K            1
            vnodes            1            1K            4
          procdesc            2            1K            8
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
           CAM SIM            2            1K            2
           tcpfunc            3            1K            3
        in_mfilter            4            1K            8
        loginclass            3            1K            5
            prison            6            1K            6
         sctp_atky            4            1K           25
            soname            5            1K         3360
         cryptodev            2            1K           82
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
        ip_msource            2            1K            3
               aio            4            1K            4
          pmchooks            1            1K            1
          filecaps            5            1K           72
filedesc_to_leader            2            1K            4
          CAM path            4            1K         1034
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
          sctp_vrf            1            1K            1
       ip_moptions            1            1K            6
              vnet            1            1K            1
               pmc            1            1K            1
             sigio            1            1K            3
           entropy            2            1K           34
          acpiintr            1            1K            1
         sctp_athm            3            1K           24
          sctp_map            2            1K            2
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
          pf_table            0            0K            0
                pf            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
        sctp_mcore            0            0K            0
        sctp_socko            0            0K            4
         sctp_iter            0            0K           12
         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_a_it            0            0K           12
         sctp_aadr            0            0K            0
         sctp_stri            0            0K            0
      tcp_pcm_rack            0            0K            4
       tcp_do_rack            0            0K            0
      tcp_fsb_rack            0            0K            8
            ipcomp            0            0K            0
               esp            0            0K            0
                ah            0            0K            0
            mqdata            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
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320    1332       17952       0     254   39534592        0
        malloc-384    384    8210      40        8219       0      30    3168000        0
              mbuf    256    8603    1314       20826       0     254    2538752        0
          BUF TRIE    152     233   11571         927       0      62    1794208        0
        malloc-128    128   11582     291       12393       0     126    1519744        0
       malloc-4096   4096     359       3         553       0       2    1482752        0
         malloc-64     64    3984   15861       48452       0     254    1270080        0
       UMA Slabs 0    112   11236      26       11236       0     126    1261344        0
        RADIX NODE    152    7113     214       30840       0      62    1113704        0
           tcp_log    416    2242     305        4556       0     254    1059552        0
      mbuf_cluster   2048     508       0         508       0     254    1040384        0
         vmem btag     56   17501      34       17501       0     254     981960        0
      malloc-65536  65536      12       1          16       0       1     851968        0
         FFS inode   1168     546      28         746       0       8     670432        0
           sctp_ep   1152       2     509          23       0     254     588672        0
         sctp_asoc   2256       1     254           1       0     254     575280        0
            socket   1024      53     455        1640       0     254     520192        0
          lkpicurr    168       2    3094           2       0      62     520128        0
              pbuf   2664       0     194           0       0       2     516816        0
      malloc-16384  16384      23       3         350       0       1     425984        0
        256 Bucket   2048     188      12        1289       0       8     409600        0
         VM OBJECT    248    1336     104       15143       0      62     357120        0
             VNODE    440     586     107         788       0      30     304920        0
       malloc-4096   4096      72       2         957       0       2     303104        0
            THREAD   1860     148      12         398       0       8     297600        0
      malloc-65536  65536       4       0           4       0       1     262144        0
       malloc-2048   2048     103      17         176       0       8     245760        0
         malloc-16     16   14526     474       14686       0     254     240000        0
            DEVCTL   1024      27     193         154       0       0     225280        0
      malloc-65536  65536       1       2         111       0       1     196608        0
      malloc-32768  32768       0       6          85       0       1     196608        0
        sctp_raddr    736       2     262           2       0     254     194304        0
         MAP ENTRY     96    1745     271       48018       0     126     193536        0
         malloc-32     32    5451     471        5506       0     254     189504        0
         UMA Zones    768     241       3         241       0      16     187392        0
        malloc-128    128    1230     165       26634       0     126     178560        0
            lkpimm     56       1    3095           1       0     254     173376        0
             unpcb    320      12     504        1195       0     254     165120        0
     FPU_save_area    832     150      48         516       0      16     164736        0
       FFS2 dinode    256     546      84         746       0      62     161280        0
       malloc-2048   2048       7      65        1090       0       8     147456        0
       malloc-1024   1024     123      21         141       0      16     147456        0
       S VFS Cache    104    1011     393        1259       0     126     146016        0
        malloc-256    256     224     346        1815       0      62     145920        0
      malloc-65536  65536       0       2          70       0       1     131072        0
      malloc-32768  32768       2       2           4       0       1     131072        0
      malloc-32768  32768       4       0           4       0       1     131072        0
       mbuf_packet    256       2     506         275       0     254     130048        0
          ksiginfo    112      65     979         108       0     126     116928        0
              PROC   1368      70       7         953       0       8     105336        0
        malloc-128    128     574     201        4182       0     126      99200        0
      malloc-32768  32768       2       1          12       0       1      98304        0
         filedesc0   1072      71      20         958       0       8      97552        0
          UMA Kegs    384     228       5         228       0      30      89472        0
        128 Bucket   1024      48      35         260       0      16      84992        0
        malloc-256    256     213     102         488       0      62      80640        0
             g_bio    440       0     180        7527       0      30      79200        0
       malloc-8192   8192       7       2          28       0       1      73728        0
        malloc-384    384     103      77         405       0      30      69120        0
         malloc-64     64     535     536        1865       0     254      68544        0
        malloc-128    128     344     183         447       0     126      67456        0
        malloc-128    128     395     132        1234       0     126      67456        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       0       2         120       0       1      65536        0
      malloc-16384  16384       3       1           4       0       1      65536        0
         64 Bucket    512      81      47        1921       0      30      65536        0
         tcp_inpcb   1304      20      28         120       0       8      62592        0
       malloc-8192   8192       6       1          41       0       1      57344        0
         malloc-64     64     475     344         699       0     254      52416        0
         malloc-64     64     425     394        1368       0     254      52416        0
         udp_inpcb    408      11     115         236       0      30      51408        0
        malloc-256    256     114      81        1072       0      62      49920        0
         32 Bucket    256      77     118         591       0      62      49920        0
           DIRHASH   1024      34      14          36       0      16      49152        0
             NAMEI   1024       0      48       14061       0      16      49152        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-8192   8192       4       2          86       0       1      49152        0
       malloc-4096   4096       9       3          13       0       2      49152        0
       malloc-2048   2048       9      15          47       0       8      49152        0
       malloc-1024   1024       8      40         608       0      16      49152        0
        malloc-384    384      80      40         671       0      30      46080        0
          syncache    168       1     263           4       0     254      44352        0
             Files     80     228     322        7674       0     126      44000        0
            clpbuf   2664       0      16          26       0       4      42624        0
       malloc-4096   4096       6       4         753       0       2      40960        0
            pcpu-8      8    4781     339        4995       0     254      40960        0
           VMSPACE    584      50      20         932       0      16      40880        0
              pipe    736      20      35         304       0      16      40480        0
        sctp_chunk    152       1     259           1       0     254      39520        0
         malloc-64     64      76     491         112       0     254      36288        0
         malloc-64     64      28     539       13761       0     254      36288        0
         malloc-64     64      89     478        2158       0     254      36288        0
         malloc-64     64     120     447         253       0     254      36288        0
        malloc-128    128       4     275          80       0     126      35712        0
        malloc-128    128     106     173         595       0     126      35712        0
        malloc-128    128     116     163         273       0     126      35712        0
     routing nhops    256      28     107          36       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-384    384      52      38          85       0      30      34560        0
        malloc-384    384      56      34          70       0      30      34560        0
        malloc-256    256      40      95         158       0      62      34560        0
        malloc-256    256       7     128         349       0      62      34560        0
        malloc-256    256      30     105         845       0      62      34560        0
        malloc-256    256      38      97         363       0      62      34560        0
        malloc-256    256      11     124         365       0      62      34560        0
         TURNSTILE    136     161      91         161       0      62      34272        0
        SLEEPQUEUE     88     161     223         161       0     126      33792        0
      malloc-32768  32768       1       0           1       0       1      32768        0
       malloc-4096   4096       4       4          55       0       2      32768        0
       malloc-2048   2048       9       7          10       0       8      32768        0
       malloc-2048   2048       7       9          35       0       8      32768        0
       malloc-2048   2048       0      16          80       0       8      32768        0
       malloc-1024   1024       2      30           6       0      16      32768        0
       malloc-1024   1024      15      17          16       0      16      32768        0
       malloc-1024   1024      16      16          35       0      16      32768        0
       malloc-1024   1024       4      28         146       0      16      32768        0
       malloc-1024   1024      14      18          18       0      16      32768        0
       malloc-1024   1024       2      30        1009       0      16      32768        0
        malloc-512    512       3      61          29       0      30      32768        0
        malloc-512    512      13      51          19       0      30      32768        0
        malloc-512    512       2      62         144       0      30      32768        0
        malloc-512    512       3      61          33       0      30      32768        0
        malloc-512    512      11      53          71       0      30      32768        0
           pcpu-64     64     503       9         503       0     254      32768        0
sctp_stream_msg_out    112       0     288           1       0     254      32256        0
            ttyinq    160     135      65         300       0      62      32000        0
              PGRP    120      30     234          45       0     126      31680        0
        sctp_laddr     48       0     588          14       0     254      28224        0
          rl_entry     48       6     582           6       0     254      28224        0
         malloc-32     32     326     556        3852       0     254      28224        0
         16 Bucket    144      61     135         299       0      62      28224        0
          4 Bucket     48       8     580          11       0     254      28224        0
               AIO    208       1     132          24       0      62      27664        0
            da_ccb    544       0      49        1975       0      16      26656        0
            cpuset    200       7     121          12       0      62      25600        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-8192   8192       1       2           3       0       1      24576        0
       malloc-8192   8192       1       2           3       0       1      24576        0
       malloc-4096   4096       3       3          20       0       2      24576        0
    ertt_txseginfo     40       0     606         360       0     254      24240        0
               PWD     40      31     575         203       0     254      24240        0
           rtentry    168      27     117          34       0      62      24192        0
          8 Bucket     80      52     248         363       0     126      24000        0
            itimer    352       0      66         138       0      30      23232        0
        malloc-384    384       6      54           8       0      30      23040        0
        malloc-384    384       2      58         383       0      30      23040        0
        malloc-384    384      23      37          49       0      30      23040        0
             ripcb    376       4      56          22       0      30      22560        0
       Mountpoints   2816       2       6           6       0       4      22528        0
         hostcache     64       1     314           1       0     254      20160        0
              ertt     72      20     260         120       0     126      20160        0
         malloc-32     32       7     623          60       0     254      20160        0
         malloc-32     32      94     536         116       0     254      20160        0
         malloc-32     32      66     564        1012       0     254      20160        0
         malloc-32     32      69     561         196       0     254      20160        0
         malloc-32     32      67     563        2982       0     254      20160        0
         malloc-32     32      83     547        1480       0     254      20160        0
          2 Bucket     32      62     568         404       0     254      20160        0
             KNOTE    160       1     124          37       0      62      20000        0
      tcp_rack_map    128       0     155           3       0     126      19840        0
           cryptop    280       0      70           6       0      30      19600        0
             AIOCB    552       1      34          20       0      16      19320        0
       L VFS Cache    320       0      60          23       0      30      19200        0
            AIOLIO    272       0      70           3       0      30      19040        0
              vmem   1856       2       7           2       0       8      16704        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           3       0       1      16384        0
       malloc-4096   4096       2       2           4       0       2      16384        0
       malloc-2048   2048       2       6           2       0       8      16384        0
       malloc-2048   2048       3       5         194       0       8      16384        0
        malloc-512    512       3      29           8       0      30      16384        0
        malloc-512    512       0      32          15       0      30      16384        0
           SMR CPU     32       8     503           8       0     254      16352        0
       tcp_bbr_pcb    896       0      18           1       0      16      16128        0
   tcp_log_id_node    120       0     132           1       0     126      15840        0
              kenv    258      17      43        1067       0      30      15480        0
      tcp_rack_pcb   1088       0      14           4       0       8      15232        0
            mqnode    416       3      33           3       0      30      14976        0
     udplite_inpcb    408       1      35           4       0      30      14688        0
         domainset     40       0     315           4       0     254      12600        0
        SMR SHARED     24       8     503           8       0     254      12264        0
 tcp_log_id_bucket    176       0      69           1       0      62      12144        0
         malloc-16     16       8     742          34       0     254      12000        0
         malloc-16     16      33     717         202       0     254      12000        0
         malloc-16     16      36     714        4773       0     254      12000        0
         malloc-16     16     207     543        3098       0     254      12000        0
         malloc-16     16      38     712          68       0     254      12000        0
         malloc-16     16     322     428       27785       0     254      12000        0
         malloc-16     16      39     711         249       0     254      12000        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
           pcpu-16     16       8     504           8       0     254       8192        0
      vtnet_tx_hdr     24       0     334         886       0     254       8016        0
               md0      8     511     257         511       0     254       6144        0
       UMA Slabs 1    176       9      13           9       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    152       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 fragment node     72       0       0           0       0     126          0        0
          pf frags    232       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 Ethernet anchors   1240       0       0           0       0      64          0        0
        pf anchors   1664       0       0           0       0      64          0        0
   pf UDP mappings    104       0       0           0       0     126          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    384       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_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_readq    152       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          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    240       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
     STS VFS Cache    144       0       0           0       0      62          0        0
  linux_dma_object     32       0       0           0       0     254          0        0
  linux_dma_pctrie    152       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    112       0       0           0       0     126          0        0
            skbuff   1808       0       0           0       0       8          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2664       0       0           0       0      16          0        0
           nfspbuf   2664       0       0           0       0       4          0        0
            swwbuf   2664       0       0           0       0       2          0        0
            swrbuf   2664       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    152       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-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-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     88       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0
db> show all tcpcbs/bl

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/14 09:01 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-i386 panic: Assertion error == NUM || error == EINTR || error == ERESTART failed at /syzkaller/managers/i386/kernel/sys/net/i
* Struck through repros no longer work on HEAD.