syzbot


panic: mld_change_state: bad ifp

Status: upstream: reported on 2025/03/02 08:40
Reported-by: syzbot+8955dd03ab6035610d45@syzkaller.appspotmail.com
First crash: 315d, last: 12h31m

Sample crash report:
panic: mld_change_state: bad ifp
cpuid = 1
time = 1768103704
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0056fcadb0
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0056fcaf10
vpanic() at vpanic+0x257/frame 0xfffffe0056fcb0d0
panic() at panic+0xb5/frame 0xfffffe0056fcb190
mld_change_state() at mld_change_state+0x10a0/frame 0xfffffe0056fcb330
in6_leavegroup_locked() at in6_leavegroup_locked+0x17b/frame 0xfffffe0056fcb450
in6_pcbpurgeif0() at in6_pcbpurgeif0+0x2f6/frame 0xfffffe0056fcb550
_in6_ifdetach() at _in6_ifdetach+0x1e6/frame 0xfffffe0056fcb640
in6_ifdeparture() at in6_ifdeparture+0x9f/frame 0xfffffe0056fcb670
if_detach_internal() at if_detach_internal+0x46b/frame 0xfffffe0056fcb740
if_detach() at if_detach+0xb6/frame 0xfffffe0056fcb780
tun_destroy() at tun_destroy+0x3c9/frame 0xfffffe0056fcb7e0
if_clone_destroyif_flags() at if_clone_destroyif_flags+0xc8/frame 0xfffffe0056fcb830
if_clone_destroy() at if_clone_destroy+0x1f6/frame 0xfffffe0056fcb870
ifioctl() at ifioctl+0x116f/frame 0xfffffe0056fcbab0
kern_ioctl() at kern_ioctl+0x52a/frame 0xfffffe0056fcbb90
sys_ioctl() at sys_ioctl+0x36e/frame 0xfffffe0056fcbd10
amd64_syscall() at amd64_syscall+0x4e2/frame 0xfffffe0056fcbf30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0056fcbf30
--- syscall (54, FreeBSD ELF64, ioctl), rip = 0x8258262ca, rsp = 0x820e4a2d8, rbp = 0x820e4a2f0 ---
KDB: enter: panic
[ thread pid 1588 tid 100225 ]
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         0xfffffe0056fcaef0
rbp         0xfffffe0056fcaf10
rsi                          0
rdi         0xffffffff81664139  printf+0x149
r8                           0
r9                  0xffffffff
r10                          0
r11                       0x1f
r12         0xfffffe0058b0d780
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 1588 (ifconfig) at 0xfffffe0058b0b010:
 state: NORMAL
 uid: 0 gid: 0 supp gids: 0, 5
 parent: pid 1586 at 0xfffffe0058b25560
 ABI: FreeBSD ELF64
 flag: 0x10004000  flag2: 0
 arguments: ifconfig tap1 destroy
 reaper: 0xfffffe0007809010 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe0058aaf920
   (map 0xfffffe0058aaf920)
   (map.pmap 0xfffffe0058aaf9c0)
   (pmap 0xfffffe0058aafa30)
 threads: 1
100225                   Run     CPU 1                       ifconfig
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1588  1586  1586     0  R       CPU 1                       ifconfig
 1586   762  1586     0  S       wait    0xfffffe0058b25560  syz-executor
 1576   762  1576     0  S       piperd  0xfffffe006b802b80  syz-executor
 1566     1  1138     0  S       uwait   0xfffffe0059a42600  syz-executor
 1171     1  1171     0  Ss+     ttyin   0xfffffe0007bf90b0  getty
 1170     1  1170     0  Ss+     ttyin   0xfffffe0007bf88b0  getty
 1169     1  1169     0  Ss+     ttyin   0xfffffe0007bf80b0  getty
 1168     1  1168     0  Ss+     ttyin   0xfffffe0007bf78b0  getty
 1167     1  1167     0  Ss+     ttyin   0xfffffe0007bf70b0  getty
 1166     1  1166     0  Ss+     ttyin   0xfffffe005994f8b0  getty
 1165     1  1165     0  Ss+     ttyin   0xfffffe00542308b0  getty
 1164     1  1164     0  Ss+     ttyin   0xfffffe005994f0b0  getty
 1163     1  1163     0  Ss+     ttyin   0xfffffe005422dcb0  getty
 1159     0     0     0  DL      mdwait  0xfffffe006bb25000  [md1]
 1138   762  1138     0  S       piperd  0xfffffe006b8022e0  syz-executor
 1052     0     0     0  DL      -       0xffffffff83b60400  [accounting]
 1045  1044   763     0  SV      uwait   0xfffffe00900bb800  syz-executor
 1044  1043   763     0  DV      ppwait  0xfffffe0058b76a70  syz-executor
 1043  1042   763     0  DV      ppwait  0xfffffe0058b7b500  syz-executor
 1042  1041   763     0  DV      ppwait  0xfffffe0058b7ba58  syz-executor
 1041  1040   763     0  DV      ppwait  0xfffffe0058b6dfc0  syz-executor
 1040  1039   763     0  DV      ppwait  0xfffffe0058b6e518  syz-executor
 1039  1038   763     0  DV      ppwait  0xfffffe0058b6ea70  syz-executor
 1038  1037   763     0  DV      ppwait  0xfffffe0058b73500  syz-executor
 1037  1036   763     0  DV      ppwait  0xfffffe0058b73a58  syz-executor
 1036  1035   763     0  DV      ppwait  0xfffffe0058b73fb0  syz-executor
 1035  1034   763     0  DV      ppwait  0xfffffe0058b74508  syz-executor
 1034  1033   763     0  DV      ppwait  0xfffffe0058b74a60  syz-executor
 1033  1032   763     0  DV      ppwait  0xfffffe0058b6b500  syz-executor
 1032  1031   763     0  DV      ppwait  0xfffffe0058b6ba58  syz-executor
 1031  1030   763     0  DV      ppwait  0xfffffe0058b6bfb0  syz-executor
 1030  1029   763     0  DV      ppwait  0xfffffe0058b6c508  syz-executor
 1029  1028   763     0  DV      ppwait  0xfffffe0058b6ca60  syz-executor
 1028  1027   763     0  DV      ppwait  0xfffffe0058b6cfb8  syz-executor
 1027  1026   763     0  DV      ppwait  0xfffffe0058b6d510  syz-executor
 1026  1025   763     0  DV      ppwait  0xfffffe0058b6da68  syz-executor
 1025  1024   763     0  DV      ppwait  0xfffffe0058b3e508  syz-executor
 1024  1023   763     0  DV      ppwait  0xfffffe0058b3ea60  syz-executor
 1023  1022   763     0  DV      ppwait  0xfffffe0058b3efb8  syz-executor
 1022  1021   763     0  DV      ppwait  0xfffffe0058b3f510  syz-executor
 1021  1020   763     0  DV      ppwait  0xfffffe0058b3fa68  syz-executor
 1020  1019   763     0  DV      ppwait  0xfffffe0058b3ffc0  syz-executor
 1019  1018   763     0  DV      ppwait  0xfffffe0058b40518  syz-executor
 1018  1017   763     0  DV      ppwait  0xfffffe0058b40a70  syz-executor
 1017  1016   763     0  DV      ppwait  0xfffffe0058b26510  syz-executor
 1016  1015   763     0  DV      ppwait  0xfffffe0058b26a68  syz-executor
 1015  1014   763     0  DV      ppwait  0xfffffe0058b26fc0  syz-executor
 1014  1013   763     0  DV      ppwait  0xfffffe0058b27518  syz-executor
 1013     1   763     0  DV      ppwait  0xfffffe0058b27a70  syz-executor
 1002   996  1002     0  Ss      select  0xfffffe009007b840  dhclient
  996   989   423    65  S       select  0xfffffe009007bc40  dhclient
  989     1   423     0  S       wait    0xfffffe0058a0d018  sh
  900     0     0     0  DL      -       0xffffffff83cd60c0  [soaiod4]
  899     0     0     0  DL      -       0xffffffff83cd60c0  [soaiod3]
  898     0     0     0  DL      -       0xffffffff83cd60c0  [soaiod2]
  897     0     0     0  DL      -       0xffffffff83cd60c0  [soaiod1]
  888     0     0     0  DL      (threaded)                  [KTLS]
100192                   D       -       0xfffffe007bf6bd00  [thr_0]
100193                   D       -       0xfffffe007bf6bd80  [thr_1]
100194                   D       -       0xffffffff83cd78e8  [reclaim_0]
  883     0     0     0  DL      mdwait  0xfffffe006bb24000  [md0]
  831     0     0     0  DL      aiordy  0xfffffe0058b0b568  [aiod4]
  830     0     0     0  DL      aiordy  0xfffffe0058b0bac0  [aiod3]
  829     0     0     0  DL      aiordy  0xfffffe0058aca560  [aiod2]
  828     0     0     0  DL      aiordy  0xfffffe0058af1018  [aiod1]
  762   760   760     0  S       nanslp  0xffffffff83bb5f41  syz-executor
  760   758   760     0  Ss      sigsusp 0xfffffe000780a0c8  csh
  758     1   758     0  Ss      select  0xfffffe0059a940c0  sshd
   16     0     0     0  DL      syncer  0xffffffff83ce3ae0  [syncer]
   15     0     0     0  DL      vlruwt  0xfffffe0058a02558  [vnlru]
   14     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff83ce2020  [bufdaemon]
100082                   D       -       0xffffffff83001ec0  [bufspacedaemon-0]
100094                   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    0xffffffff84476f80  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff84882700  [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                   Run     CPU 0                       [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]
100291                   D       -       0xfffffe0059a78800  [system_taskq_0]
100292                   D       -       0xfffffe0059a78800  [system_taskq_1]
100293                   D       -       0xfffffe0088866400  [system_delay_taskq_]
100294                   D       -       0xfffffe0088866400  [system_delay_taskq_]
100295                   D       -       0xfffffe0088866800  [zvol_tq-0_0]
100296                   D       -       0xfffffe0088866800  [zvol_tq-0_1]
100297                   D       -       0xfffffe0088866800  [zvol_tq-0_2]
100298                   D       -       0xfffffe0088866800  [zvol_tq-0_3]
100299                   D       -       0xfffffe0088866800  [zvol_tq-0_4]
100300                   D       -       0xfffffe0088866800  [zvol_tq-0_5]
100301                   D       -       0xfffffe0088866800  [zvol_tq-0_6]
100302                   D       -       0xfffffe0088866800  [zvol_tq-0_7]
100303                   D       -       0xfffffe0088866800  [zvol_tq-0_8]
100304                   D       -       0xfffffe0088866800  [zvol_tq-0_9]
100305                   D       -       0xfffffe0088866800  [zvol_tq-0_10]
100306                   D       -       0xfffffe0088866800  [zvol_tq-0_11]
100307                   D       -       0xfffffe0088866800  [zvol_tq-0_12]
100308                   D       -       0xfffffe0088866800  [zvol_tq-0_13]
100309                   D       -       0xfffffe0088866800  [zvol_tq-0_14]
100310                   D       -       0xfffffe0088866800  [zvol_tq-0_15]
100311                   D       -       0xfffffe0088866800  [zvol_tq-0_16]
100312                   D       -       0xfffffe0088866800  [zvol_tq-0_17]
100313                   D       -       0xfffffe0088866800  [zvol_tq-0_18]
100314                   D       -       0xfffffe0088866800  [zvol_tq-0_19]
100315                   D       -       0xfffffe0088866800  [zvol_tq-0_20]
100316                   D       -       0xfffffe0088866800  [zvol_tq-0_21]
100317                   D       -       0xfffffe0088866800  [zvol_tq-0_22]
100318                   D       -       0xfffffe0088866800  [zvol_tq-0_23]
100319                   D       -       0xfffffe0088866800  [zvol_tq-0_24]
100320                   D       -       0xfffffe0088866800  [zvol_tq-0_25]
100321                   D       -       0xfffffe0088866800  [zvol_tq-0_26]
100322                   D       -       0xfffffe0088866800  [zvol_tq-0_27]
100323                   D       -       0xfffffe0088866800  [zvol_tq-0_28]
100324                   D       -       0xfffffe0088866800  [zvol_tq-0_29]
100325                   D       -       0xfffffe0088866800  [zvol_tq-0_30]
100326                   D       -       0xfffffe0088866800  [zvol_tq-0_31]
100327                   D       -       0xfffffe0059a8a700  [arc_prune]
100328                   D       -       0xfffffe0088864b00  [arc_flush_0]
100329                   D       -       0xfffffe0088864b00  [arc_flush_1]
100330                   D       -       0xfffffe0088864a00  [dbu_evict]
100331                   D       -       0xfffffe0088864900  [z_vdev_file_0]
100332                   D       -       0xfffffe0088864900  [z_vdev_file_1]
100333                   D       -       0xfffffe0088864900  [z_vdev_file_2]
100334                   D       -       0xfffffe0088864900  [z_vdev_file_3]
100335                   D       -       0xfffffe0088864900  [z_vdev_file_4]
100336                   D       -       0xfffffe0088864900  [z_vdev_file_5]
100337                   D       -       0xfffffe0088864900  [z_vdev_file_6]
100338                   D       -       0xfffffe0088864900  [z_vdev_file_7]
100339                   D       -       0xfffffe0088864900  [z_vdev_file_8]
100340                   D       -       0xfffffe0088864900  [z_vdev_file_9]
100341                   D       -       0xfffffe0088864900  [z_vdev_file_10]
100342                   D       -       0xfffffe0088864900  [z_vdev_file_11]
100343                   D       -       0xfffffe0088864900  [z_vdev_file_12]
100344                   D       -       0xfffffe0088864900  [z_vdev_file_13]
100345                   D       -       0xfffffe0088864900  [z_vdev_file_14]
100346                   D       -       0xfffffe0088864900  [z_vdev_file_15]
100347                   D       -       0xfffffe0088864600  [zfsvfs]
db> show all locks
Process 1588 (ifconfig) thread 0xfffffe0058b0d780 (100225)
exclusive sleep mutex in6_multi_list_mtx (in6_multi_list_mtx) r = 0 (0xffffffff83cfffe0) locked @ /syzkaller/managers/main/kernel/sys/netinet6/in6_mcast.c:1386
shared rw rawinp (rawinp) r = 0 (0xfffffe00903ee320) locked @ /syzkaller/managers/main/kernel/sys/netinet/in_pcb.c:1486
exclusive sx in6_multi_sx (in6_multi_sx) r = 0 (0xffffffff83d00020) locked @ /syzkaller/managers/main/kernel/sys/netinet6/in6_ifattach.c:876
exclusive sx ifnet_detach_sx (ifnet_detach_sx) r = 1 (0xffffffff83ce4280) locked @ /syzkaller/managers/main/kernel/sys/net/if.c:2904
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            6        12804K            6
            linker          410        12498K          568
            devbuf         8283         7252K         8311
          tcp_hpts            8         4865K            8
        md_sectors         1044         4176K         1044
           solaris          112         3065K          203
         sysctloid        44971         2642K        45083
             vtbuf           24         1968K           46
              kobj          337         1348K          519
            newblk          112         1052K         1384
              vmem            5         1048K           11
          vfscache            3         1025K            3
               pcb          156          817K          487
          filedesc           77          614K         1461
          inodedep          131          561K          563
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          215          378K         1725
         vnet_data            2          224K            2
          acpitask            1          224K            1
            KTRACE          101          201K         2132
            acpica         1674          184K        56977
               LRO          120          183K          222
           pagedep          108          155K          364
           tidhash            3          141K            3
        tfo_ccache            1          128K            1
          IP reass            1          128K            1
            DEVFS1          111          111K          276
               sem            4          106K            4
        gtaskqueue           18           98K           18
          routetbl         2282           84K         7098
               bus         1015           83K         5167
          mtx_pool            3           74K            3
           kdtrace          334           69K         2254
          syncache            1           68K            1
     NFSD srvcache            3           68K            3
            module          533           67K          533
              umtx          528           66K          528
       ddb_capture            1           64K            1
           md_disk         1046           41K         1046
               shm            2           34K           11
            DEVFS3          130           33K          188
         hostcache            1           32K            1
               msg            4           30K            4
            kbdmux            6           28K            6
         sctp_atcl           67           26K          143
            ifaddr           83           21K          524
              temp           35           21K         4565
        DEVFS_RULE           56           20K           56
        kstat_data           19           19K           19
               BPF           15           19K          119
             mkdir          133           17K          688
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           lltable           53           16K          451
           ithread           90           15K           90
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         newdirblk          102           13K          344
            diradd          101           13K          481
              GEOM           59           13K          487
              kenv           95           12K           95
       ether_multi          139           12K         1580
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              rman           75           10K          430
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               MCA           32            4K           32
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         proc-args           91            3K         4013
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           scsi_da            0            0K           70
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8321    1839       36123       0     254   41615360        0
         vmem btag     56   88032      63       88053       0     254    4933320        0
       malloc-4096   4096    1045       3        1046       0       2    4292608        0
               md0      8  532480     160      532480       0     254    4261120        0
        malloc-384    384    8212      38        8283       0      30    3168000        0
              mbuf    256    8623    1804       45018       0     254    2669312        0
        RADIX NODE    152   11795    4476       90647       0      62    2473192        0
        malloc-128    128   14918      86       17319       0     126    1920512        0
          BUF TRIE    152     330   11474        1335       0      62    1794208        0
           tcp_log    416    3618     198        7354       0     254    1587456        0
      mbuf_cluster   2048     508     254         508       0     254    1560576        0
       UMA Slabs 0    112   13346       4       13346       0     126    1495200        0
       malloc-4096   4096     361       3         564       0       2    1490944        0
         malloc-64     64    4896   15453       53902       0     254    1302336        0
      malloc-16384  16384      38      30         888       0       1    1114112        0
      malloc-65536  65536      12       1          16       0       1     851968        0
            socket   1024      79     685        3262       0     254     782336        0
         FFS inode   1168     631      27         967       0       8     768544        0
            DEVCTL   1024     627     101         754       0       0     745472        0
         sctp_asoc   2256       1     254           5       0     254     575280        0
              pbuf   2664       0     202           0       0       2     538128        0
          lkpicurr    168       2    3094           2       0      62     520128        0
       malloc-4096   4096      83      43        1592       0       2     516096        0
            THREAD   1860     251      13         661       0       8     491040        0
        256 Bucket   2048     206      20        6382       0       8     462848        0
         VM OBJECT    248     940     612       26013       0      62     384896        0
         malloc-32     32   10465     245       10632       0     254     342720        0
             VNODE    440     672      84        1059       0      30     332640        0
         malloc-16     16   18427     573       18790       0     254     304000        0
           sctp_ep   1152      66     193         138       0     254     298368        0
zio_buf_comb_262144 262144       0       1          15       0       1     262144        0
      malloc-65536  65536       4       0           4       0       1     262144        0
       malloc-2048   2048     102      18         191       0       8     245760        0
       malloc-2048   2048      74      46         165       0       8     245760        0
         UMA Zones    768     313       1         313       0      16     241152        0
     FPU_save_area    832     253      26         977       0      16     232128        0
         MAP ENTRY     96     790    1478       90147       0     126     217728        0
        malloc-256    256     317     493        2644       0      62     207360        0
      malloc-65536  65536       1       2         111       0       1     196608        0
        sctp_raddr    736       1     263           5       0     254     194304        0
       FFS2 dinode    256     631     119         967       0      62     192000        0
              PROC   1368      81      51        1591       0       8     180576        0
        malloc-128    128    1236     159       27046       0     126     178560        0
            lkpimm     56       1    3095           1       0     254     173376        0
             unpcb    320       2     514        1955       0     254     165120        0
      malloc-32768  32768       0       5         127       0       1     163840        0
       malloc-1024   1024     146      14         312       0      16     163840        0
       malloc-2048   2048       7      65        1284       0       8     147456        0
       S VFS Cache    104    1126     278        1534       0     126     146016        0
         filedesc0   1072      82      51        1623       0       8     142576        0
         tcp_inpcb   1304       4     101         266       0       8     136920        0
zio_buf_comb_131072 131072       0       1           1       0       1     131072        0
      malloc-65536  65536       0       2          94       0       1     131072        0
      malloc-32768  32768       4       0           4       0       1     131072        0
      malloc-32768  32768       2       2          12       0       1     131072        0
       malloc-2048   2048      59       5         114       0       8     131072        0
        malloc-256    256     384     126         975       0      62     130560        0
       mbuf_packet    256       5     503         922       0     254     130048        0
        malloc-384    384     264      66         697       0      30     126720        0
          ksiginfo    112     148     896         235       0     126     116928        0
          UMA Kegs    384     299       4         299       0      30     116352        0
        malloc-128    128     581     318        4496       0     126     115072        0
        malloc-128    128     601     298        2748       0     126     115072        0
         64 Bucket    512     157      35       18552       0      30      98304        0
        malloc-256    256     225     150        1882       0      62      96000        0
       malloc-8192   8192       9       2          31       0       1      90112        0
          syncache    168       1     527           7       0     254      88704        0
        128 Bucket   1024      64      19         311       0      16      84992        0
       malloc-8192   8192       6       4          56       0       1      81920        0
        malloc-384    384      87      93         367       0      30      69120        0
         malloc-64     64     599     472        2286       0     254      68544        0
        malloc-128    128     331     196         565       0     126      67456        0
             g_bio    440       0     153        8511       0      30      67320        0
      malloc-65536  65536       0       1           3       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        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
            pcpu-8      8    5612    1044       13823       0     254      53248        0
         malloc-64     64      98     721        2900       0     254      52416        0
         malloc-64     64     472     347         762       0     254      52416        0
         malloc-64     64     441     378        2155       0     254      52416        0
         malloc-64     64     107     712        1432       0     254      52416        0
             Files     80     174     476       15428       0     126      52000        0
         udp_inpcb    408       5     121         671       0      30      51408        0
         TURNSTILE    136     265     113         265       0      62      51408        0
        malloc-256    256      40     155         182       0      62      49920        0
        malloc-256    256      46     149        3034       0      62      49920        0
        malloc-256    256      60     135         937       0      62      49920        0
         32 Bucket    256      76     119        1224       0      62      49920        0
zio_data_buf_16384  16384       0       3           9       0       1      49152        0
           DIRHASH   1024      34      14          36       0      16      49152        0
             NAMEI   1024       0      48       24416       0      16      49152        0
      malloc-16384  16384       3       0           3       0       1      49152        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-8192   8192       4       2          88       0       1      49152        0
       malloc-4096   4096       5       7          18       0       2      49152        0
       malloc-1024   1024       8      40         683       0      16      49152        0
        malloc-512    512      11      85          54       0      30      49152        0
           pcpu-64     64     508     260         508       0     254      49152        0
           VMSPACE    584      22      62        1528       0      16      49056        0
        SLEEPQUEUE     88     265     247         265       0     126      45056        0
       malloc-4096   4096       4       6         886       0       2      40960        0
       malloc-4096   4096       5       5         830       0       2      40960        0
              pipe    736      18      37         506       0      16      40480        0
        sctp_chunk    152       1     259           1       0     254      39520        0
            da_ccb    544       0      70        2260       0      16      38080        0
         malloc-64     64      65     502         627       0     254      36288        0
         malloc-64     64      29     538       17904       0     254      36288        0
        malloc-128    128       4     275          70       0     126      35712        0
        malloc-128    128     105     174         749       0     126      35712        0
        malloc-128    128     211      68         459       0     126      35712        0
     routing nhops    256      23     112         234       0      62      34560        0
           ttyoutq    256      72      63         304       0      62      34560        0
        malloc-384    384      52      38         116       0      30      34560        0
        malloc-384    384      56      34        1125       0      30      34560        0
        malloc-384    384      60      30         224       0      30      34560        0
        malloc-256    256       7     128         330       0      62      34560        0
        malloc-256    256       9     126         428       0      62      34560        0
             ripcb    376       2      88          63       0      30      33840        0
     zio_buf_16384  16384       0       2          10       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       2       0           4       0       1      32768        0
       malloc-2048   2048       2      14           3       0       8      32768        0
       malloc-2048   2048       7       9         301       0       8      32768        0
       malloc-2048   2048       0      16          87       0       8      32768        0
       malloc-2048   2048       6      10         202       0       8      32768        0
       malloc-1024   1024       2      30          14       0      16      32768        0
       malloc-1024   1024      17      15          68       0      16      32768        0
       malloc-1024   1024      16      16          40       0      16      32768        0
       malloc-1024   1024       4      28         151       0      16      32768        0
       malloc-1024   1024      17      15          22       0      16      32768        0
       malloc-1024   1024       2      30        2370       0      16      32768        0
        malloc-512    512       4      60          27       0      30      32768        0
        malloc-512    512       1      63         167       0      30      32768        0
        malloc-512    512       3      61         427       0      30      32768        0
        malloc-512    512      11      53         109       0      30      32768        0
sctp_stream_msg_out    112       0     288           1       0     254      32256        0
            ttyinq    160     135      65         570       0      62      32000        0
              PGRP    120      18     246         156       0     126      31680        0
        sctp_laddr     48       0     588         215       0     254      28224        0
          rl_entry     48      10     578          16       0     254      28224        0
         malloc-32     32     329     553        1283       0     254      28224        0
         malloc-32     32      58     824        2361       0     254      28224        0
         16 Bucket    144      63     133         445       0      62      28224        0
          4 Bucket     48       5     583           6       0     254      28224        0
            cpuset    200       8     120           9       0      62      25600        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-4096   4096       4       2          61       0       2      24576        0
    ertt_txseginfo     40       2     604         504       0     254      24240        0
               PWD     40      11     595         398       0     254      24240        0
           rtentry    168      26     118         234       0      62      24192        0
          8 Bucket     80      77     223         493       0     126      24000        0
        malloc-384    384       6      54          10       0      30      23040        0
        malloc-384    384       2      58         441       0      30      23040        0
            clpbuf   2664       0       8          55       0       4      21312        0
         hostcache     64       2     313           2       0     254      20160        0
              ertt     72       4     276         266       0     126      20160        0
         malloc-32     32       9     621         393       0     254      20160        0
         malloc-32     32      95     535         120       0     254      20160        0
         malloc-32     32      79     551        1567       0     254      20160        0
         malloc-32     32      70     560         349       0     254      20160        0
         malloc-32     32     165     465        3211       0     254      20160        0
          2 Bucket     32     108     522        1059       0     254      20160        0
             KNOTE    160       0     125          60       0      62      20000        0
       tcp_bbr_map    128       3     152           8       0     126      19840        0
      tcp_rack_map    128       0     155           3       0     126      19840        0
           cryptop    280       0      70          12       0      30      19600        0
             AIOCB    552       0      35         342       0      16      19320        0
      ktls_session    256       0      75           3       0      62      19200        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-8192   8192       1       1           3       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
        malloc-512    512       3      29           8       0      30      16384        0
        malloc-512    512       2      30           3       0      30      16384        0
        malloc-512    512       0      32          15       0      30      16384        0
           SMR CPU     32       8     503           8       0     254      16352        0
           pf tags    104       0     156           1       0     126      16224        0
       tcp_bbr_pcb    896       1      17           3       0      16      16128        0
         malloc-16     16     432     568       29454       0     254      16000        0
               AIO    208       0      76          43       0      62      15808        0
              kenv    258      17      43        1081       0      30      15480        0
      tcp_rack_pcb   1088       0      14           2       0       8      15232        0
            mqnode    416       3      33           3       0      30      14976        0
     udplite_inpcb    408       0      36          10       0      30      14688        0
         domainset     40       0     315           1       0     254      12600        0
        SMR SHARED     24       8     503           8       0     254      12264        0
arc_buf_hdr_t_full    368       4      29           4       0      30      12144        0
         malloc-16     16      58     692         133       0     254      12000        0
         malloc-16     16      35     715         201       0     254      12000        0
         malloc-16     16      40     710        1366       0     254      12000        0
         malloc-16     16     206     544        3139       0     254      12000        0
         malloc-16     16      41     709         108       0     254      12000        0
         malloc-16     16      43     707         492       0     254      12000        0
            itimer    352       0      33           6       0      30      11616        0
       L VFS Cache    320       0      36          16       0      30      11520        0
            AIOLIO    272       0      42          39       0      30      11424        0
       Mountpoints   2816       2       2           4       0       4      11264        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       0       2           4       0       2       8192        0
      vtnet_tx_hdr     24       0     334        1111       0     254       8016        0
           pcpu-16     16       4     252           4       0     254       4096        0
       UMA Slabs 1    176      12      10          12       0      62       3872        0
        KMAP ENTRY     96      15      24          26       0       0       3744        0
   zfs_znode_cache    456       0       0           0       0      30          0        0
zap_attr_long_cache   1056       0       0           0       0       8          0        0
     zap_name_long   1096       0       0           0       0       8          0        0
    zap_attr_cache    288       0       0           0       0      30          0        0
          zap_name    328       0       0           0       0      30          0        0
       sio_cache_2    168       0       0           0       0      62          0        0
       sio_cache_1    152       0       0           0       0      62          0        0
       sio_cache_0    136       0       0           0       0      62          0        0
     zil_zcw_cache     80       0       0           0       0     126          0        0
     zil_lwb_cache    376       0       0           0       0      30          0        0
dbuf_dirty_record_t    376       0       0           0       0      30          0        0
    dmu_buf_impl_t    376       0       0           0       0      30          0        0
         arc_buf_t     32       0       0           0       0     254          0        0
arc_buf_hdr_t_l2only     96       0       0           0       0     126          0        0
           dnode_t    952       0       0           0       0      16          0        0
          sa_cache    272       0       0           0       0      30          0        0
         abd_chunk   4096       0       0           0       0       2          0        0
zio_buf_comb_16777216 16777216       0       0           0       0       1          0        0
zio_buf_comb_12582912 12582912       0       0           0       0       1          0        0
zio_buf_comb_8388608 8388608       0       0           0       0       1          0        0
zio_buf_comb_6291456 6291456       0       0           0       0       1          0        0
zio_buf_comb_4194304 4194304       0       0           0       0       1          0        0
zio_buf_comb_3145728 3145728       0       0           0       0       1          0        0
zio_buf_comb_2097152 2097152       0       0           0       0       1          0        0
zio_buf_comb_1572864 1572864       0       0           0       0       1          0        0
zio_buf_comb_1048576 1048576       0       0           0       0       1          0        0
zio_buf_comb_786432 786432       0       0           0       0       1          0        0
zio_buf_comb_524288 524288       0       0           0       0       1          0        0
zio_buf_comb_393216 393216       0       0           0       0       1          0        0
zio_buf_comb_196608 196608       0       0           0       0       1          0        0
zio_buf_comb_98304  98304       0       0           0       0       1          0        0
zio_buf_comb_65536  65536       0       0           0       0       1          0        0
zio_buf_comb_49152  49152       0       0           0       0       1          0        0
zio_buf_comb_32768  32768       0       0           0       0       1          0        0
zio_buf_comb_24576  24576       0       0           0       0       1          0        0
zio_data_buf_12288  12288       0       0           0       0       1          0        0
     zio_buf_12288  12288       0       0           0       0       1          0        0
 zio_data_buf_8192   8192       0       0           0       0       1          0        0
      zio_buf_8192   8192       0       0           0       0       1          0        0
 zio_data_buf_6144   6144       0       0           0       0       1          0        0
      zio_buf_6144   6144       0       0           0       0       1          0        0
 zio_data_buf_4096   4096       0       0           0       0       2          0        0
      zio_buf_4096   4096       0       0           0       0       2          0        0
 zio_data_buf_3072   3072       0       0           0       0       4          0        0
      zio_buf_3072   3072       0       0           0       0       4          0        0
 zio_data_buf_2048   2048       0       0           0       0       8          0        0
      zio_buf_2048   2048       0       0           0       0       8          0        0
 zio_data_buf_1536   1536       0       0           0       0       8          0        0
      zio_buf_1536   1536       0       0           0       0       8          0        0
 zio_data_buf_1024   1024       0       0           0       0      16          0        0
      zio_buf_1024   1024       0       0           0       0      16          0        0
  zio_data_buf_512    512       0       0           0       0      30          0        0
       zio_buf_512    512       0       0           0       0      30          0        0
    zio_link_cache     48       0       0           0       0     254          0        0
         zio_cache   1152       0       0           0       0       8          0        0
ddt_log_entry_trad_cache    328       0       0           0       0      30          0        0
ddt_log_entry_flat_cache    144       0       0           0       0      62          0        0
ddt_entry_trad_cache    368       0       0           0       0      30          0        0
ddt_entry_flat_cache    184       0       0           0       0      62          0        0
         ddt_cache  29376       0       0           0       0       1          0        0
   brt_entry_cache    168       0       0           0       0      62          0        0
metaslab_alloc_trace_cache     72       0       0           0       0     126          0        0
zfs_btree_leaf_cache   4096       0       0           0       0       2          0        0
   reference_cache     48       0       0           0       0     254          0        0
        taskq_zone    160       0       0           0       0      62          0        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 mtags    184       0       0           0       0      62          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
               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
   tcp_log_id_node    120       0       0           0       0     126          0        0
 tcp_log_id_bucket    176       0       0           0       0      62          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-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
           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 (22):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/11 03:55 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2026/01/11 03:28 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2026/01/05 06:29 freebsd-src a3394b6a23fb e3fbc05e console log report ci-freebsd-main panic: mld_change_state: bad ifp
2026/01/04 12:39 freebsd-src a3394b6a23fb e3fbc05e console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/12/31 00:53 freebsd-src a3394b6a23fb d32f762a console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/12/13 11:43 freebsd-src c42bce238abd a066d2bc console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/11/29 18:12 freebsd-src 02b72b1540bf 01c07bfe console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/11/02 07:02 freebsd-src b473bb274cef 2c50b6a9 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/09/09 09:29 freebsd-src c04fe26aa2f7 d291dd2d console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/09/06 19:39 freebsd-src c04fe26aa2f7 d291dd2d console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/08/30 16:29 freebsd-src c04fe26aa2f7 807a3b61 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/08/22 19:39 freebsd-src c04fe26aa2f7 bf27483f console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/08/02 22:27 freebsd-src d1095367eb51 8e9d1dc1 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/08/01 16:33 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/07/16 11:43 freebsd-src b2bf651a797b c118d736 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/07/11 06:54 freebsd-src e8019a159185 3cda49cf console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/05/17 17:13 freebsd-src ee84b4e2fdf0 f41472b0 console log report ci-freebsd-main panic: mld_change_state: bad ifp
2025/07/14 02:30 freebsd-src 2cfd6342ac84 3cda49cf console log report ci-freebsd-i386 panic: mld_change_state: bad ifp
2025/06/12 20:49 freebsd-src d8b51259caee 98683f8f console log report ci-freebsd-i386 panic: mld_change_state: bad ifp
2025/03/29 23:22 freebsd-src 27f70efebf1d d3999433 console log report ci-freebsd-i386 panic: mld_change_state: bad ifp
2025/03/06 12:58 freebsd-src 23f453ae34c2 831e3629 console log report ci-freebsd-i386 panic: mld_change_state: bad ifp
2025/03/02 08:39 freebsd-src e74a3c75855f c3901742 console log report ci-freebsd-i386 panic: mld_change_state: bad ifp
* Struck through repros no longer work on HEAD.