syzbot


panic: tcp_do_segment: sent too much

Status: upstream: reported on 2025/03/30 16:49
Reported-by: syzbot+e4418498cc95b1cf5c16@syzkaller.appspotmail.com
First crash: 61d, last: 29d

Sample crash report:
panic: tcp_do_segment: sent too much
cpuid = 0
time = 1746151015
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe00573acbb0
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe00573acd10
vpanic() at vpanic+0x257/frame 0xfffffe00573aced0
panic() at panic+0xb5/frame 0xfffffe00573acf90
tcp_do_segment() at tcp_do_segment+0x596f/frame 0xfffffe00573ad270
tcp_input_with_port() at tcp_input_with_port+0x21ba/frame 0xfffffe00573ad530
tcp_input() at tcp_input+0x1f/frame 0xfffffe00573ad550
ip_input() at ip_input+0xa98/frame 0xfffffe00573ad670
netisr_dispatch_src() at netisr_dispatch_src+0x219/frame 0xfffffe00573ad750
ether_demux() at ether_demux+0x447/frame 0xfffffe00573ad810
ether_nh_input() at ether_nh_input+0xb61/frame 0xfffffe00573ad8f0
netisr_dispatch_src() at netisr_dispatch_src+0x219/frame 0xfffffe00573ad9d0
ether_input() at ether_input+0x1db/frame 0xfffffe00573adab0
vtnet_rxq_eof() at vtnet_rxq_eof+0x16d2/frame 0xfffffe00573adcd0
vtnet_rx_vq_process() at vtnet_rx_vq_process+0x189/frame 0xfffffe00573add90
ithread_loop() at ithread_loop+0x4ec/frame 0xfffffe00573adef0
fork_exit() at fork_exit+0xcc/frame 0xfffffe00573adf30
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00573adf30
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100053 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x25be2d7(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0xfffffe00033eee30
rdx                          0
rbx         0xffffffff827a86a0  .str.27
rsp         0xfffffe00573accf0
rbp         0xfffffe00573acd10
rsi                          0
rdi         0xffffffff816128d9  printf+0x149
r8                           0
r9                  0xffffffff
r10                          0
r11                        0x4
r12         0xfffffe000802a000
r13         0xfffffffffffffffe
r14         0xffffffff827a86a0  .str.27
r15                          0
rip         0xffffffff815fcebe  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x25be2d7(%rip)
db> show proc
Process 12 (intr) at 0xfffffe0008006580:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff83b458e0
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff83b458e0 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff83b46880
   (map 0xffffffff83b46880)
   (map.pmap 0xffffffff83b46920)
   (pmap 0xffffffff83b46990)
 threads: 20
100013                   I                                   [swi6: task queue]
100014                   I                                   [swi6: Giant taskq]
100016                   I                                   [swi5: fast taskq]
100033                   Run     CPU 1                       [swi1: netisr 0]
100034                   I                                   [swi1: hpts]
100035                   I                                   [swi1: hpts]
100048                   I                                   [irq24: virtio_pci0]
100049                   I                                   [irq25: virtio_pci0]
100050                   I                                   [irq26: virtio_pci0]
100051                   I                                   [irq27: virtio_pci0]
100052                   I                                   [irq28: virtio_pci1]
100053                   Run     CPU 0                       [irq29: virtio_pci1]
100054                   I                                   [irq30: virtio_pci1]
100055                   I                                   [irq31: virtio_pci1]
100056                   I                                   [irq32: virtio_pci1]
100061                   I                                   [irq10: virtio_pci2]
100063                   I                                   [irq1: atkbd0]
100064                   I                                   [irq12: psm0]
100065                   I                                   [swi0: uart uart++]
100069                   I                                   [swi1: pf send]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1098   765   765     0  R       (threaded)                  syz-executor
100522                   RunQ                                syz-executor
100642                   RunQ                                syz-executor
100643                   S       uwait   0xfffffe0059f0b200  syz-executor
 1097   764   764     0  RE                                  syz-executor
 1096   767   767     0  T       (threaded)                  syz-executor
100569                   s                                   syz-executor
100634                   D       biowr   0xfffffe000862e888  syz-executor
100636                   RunQ                                syz-executor
100640                   s                                   syz-executor
100641                   D       ufs     0xfffffe006e788ac0  syz-executor
100644                   s                                   syz-executor
 1094     1   767     0  S       umtxn   0xfffffe0059f0b000  syz-executor
 1092   766   766     0  T       (threaded)                  syz-executor
100614                   s                                   syz-executor
100627                   D       biowr   0xfffffe00085cf8c0  syz-executor
 1085     1   765     0  S       uwait   0xfffffe0059f0b280  syz-executor
 1079     1   766     0  S       uwait   0xfffffe006ebe1600  syz-executor
 1078     1   766     0  S       uwait   0xfffffe006e3f1500  syz-executor
 1077     1   766     0  S       uwait   0xfffffe0058ce5b80  syz-executor
 1076     1   766     0  S       uwait   0xfffffe0059ea5b00  syz-executor
 1072     1   766     0  S       uwait   0xfffffe006ebe0d80  syz-executor
 1064     1   767     0  S       uwait   0xfffffe006ebe0480  syz-executor
 1059     1   766     0  S       uwait   0xfffffe007849d880  syz-executor
 1054     0     0     0  DL      (threaded)                  [so_splice]
100554                   D       -       0xfffffe0058d9f680  [thr_0]
100557                   D       -       0xfffffe0058d9f6c0  [thr_1]
 1050     1   764     0  S       uwait   0xfffffe007849dd80  syz-executor
 1048     1   767     0  S       uwait   0xfffffe007849dc80  syz-executor
 1041     1   764     0  S       uwait   0xfffffe0059f0ec00  syz-executor
 1038     1   766     0  S       uwait   0xfffffe007849e780  syz-executor
 1030     1   767     0  S       uwait   0xfffffe007849e280  syz-executor
 1018     1   766     0  S       uwait   0xfffffe006e3f3780  syz-executor
 1017     1   766     0  S       uwait   0xfffffe007849e400  syz-executor
 1011     1   765     0  SV      uwait   0xfffffe006e3f3a00  syz-executor
 1010     1   765     0  SV      uwait   0xfffffe006e3f3800  syz-executor
 1004     1   765 60928  S       uwait   0xfffffe006e3f3c00  syz-executor
 1001     1   764     0  S       uwait   0xfffffe007849e380  syz-executor
  999     1   767     0  S       uwait   0xfffffe007849e600  syz-executor
  998     1   767     0  S       uwait   0xfffffe0078070c00  syz-executor
  993     1   764 60929  S       uwait   0xfffffe0078070980  syz-executor
  992     0     0     0  DL      -       0xffffffff83cac400  [soaiod4]
  991     0     0     0  DL      -       0xffffffff83cac400  [soaiod3]
  990     0     0     0  DL      -       0xffffffff83cac400  [soaiod2]
  989     0     0     0  DL      -       0xffffffff83cac400  [soaiod1]
  988     0     0     0  DL      -       0xffffffff83b46d40  [accounting]
  984     1   766     0  S       uwait   0xfffffe006ebe0100  syz-executor
  983     1   766     0  S       uwait   0xfffffe0078071000  syz-executor
  980     1   765     0  S       uwait   0xfffffe0078070a80  syz-executor
  979     1   765     0  S       uwait   0xfffffe006e3f3880  syz-executor
  975     1   764     0  S       uwait   0xfffffe007849e500  syz-executor
  970     1   765     0  S       uwait   0xfffffe0059f0eb80  syz-executor
  964     1   764    -1  S       uwait   0xfffffe0078070b80  syz-executor
  956     0     0     0  DL      mdwait  0xfffffe0078073000  [md0]
  955     1   766     0  SV      uwait   0xfffffe0059ea5900  syz-executor
  950     1   764     0  S       uwait   0xfffffe0059ea5800  syz-executor
  941     1   765     0  S       uwait   0xfffffe0059ea5600  syz-executor
  936     1   765     0  S       uwait   0xfffffe0059e7bb80  syz-executor
  934     1   764     0  S       uwait   0xfffffe0059ea5700  syz-executor
  933     1   764     0  S       uwait   0xfffffe006ebe1700  syz-executor
  902     1   764     0  S       uwait   0xfffffe0078071380  syz-executor
  896     1   767     0  S       uwait   0xfffffe0059bfc080  syz-executor
  895     1   764     0  S       uwait   0xfffffe0059ea5d80  syz-executor
  893     1   767     0  SV      connec  0xfffffe005a30c8da  syz-executor
  888     1   767     0  S       uwait   0xfffffe006ebe1500  syz-executor
  883     1   764     0  S       uwait   0xfffffe0059bfc180  syz-executor
  875     1   764     0  S       uwait   0xfffffe0059f0ed00  syz-executor
  867     1   766     0  S       uwait   0xfffffe006ebe0b80  syz-executor
  860     1   767    -1  S       uwait   0xfffffe006ebe0e80  syz-executor
  848     1   764     0  S       uwait   0xfffffe006ebe1800  syz-executor
  841     1   764     0  S       uwait   0xfffffe0059e7bd80  syz-executor
  838     1   764     0  S       uwait   0xfffffe0059bfbf00  syz-executor
  837     1   764     0  S       uwait   0xfffffe0059e7c000  syz-executor
  835     1   765     0  S       umtxn   0xfffffe0059f0ee00  syz-executor
  831     1   767     0  S       uwait   0xfffffe006ebe1400  syz-executor
  830     1   766     0  S       uwait   0xfffffe006e3f1300  syz-executor
  825     0     0     0  DL      aiordy  0xfffffe0054902040  [aiod4]
  824     0     0     0  DL      aiordy  0xfffffe00549025a0  [aiod3]
  823     0     0     0  DL      aiordy  0xfffffe0054902b00  [aiod2]
  822     0     0     0  DL      aiordy  0xfffffe00548e5580  [aiod1]
  821     1   766     0  S       uwait   0xfffffe006e3f1000  syz-executor
  820   807   820     0  Ss      select  0xfffffe0059f0b3c0  dhclient
  818     0     0     0  DL      (threaded)                  [KTLS]
100130                   D       -       0xfffffe005a2eee00  [thr_0]
100131                   D       -       0xfffffe005a2eee80  [thr_1]
100132                   D       -       0xffffffff83cadc28  [reclaim_0]
  814     1   814     0  Ss      select  0xfffffe0059f0b540  dhclient
  807   787   424    65  S       select  0xfffffe0059f0b640  dhclient
  787   424   424     0  S       wait    0xfffffe00548e7060  sh
  767   763   767     0  S       nanslp  0xffffffff83b9c501  syz-executor
  766   763   766     0  S       nanslp  0xffffffff83b9c501  syz-executor
  765   763   765     0  S       nanslp  0xffffffff83b9c501  syz-executor
  764   763   764     0  S       nanslp  0xffffffff83b9c501  syz-executor
  763     1   761     0  S       select  0xfffffe0059f0c6c0  syz-executor
  759   682   759     0  Ss      select  0xfffffe006e3f0bc0  sshd
  748     1   748     0  Ts+     ttyin   0xfffffe0007ff78b0  getty
  747     1   747     0  Ts+     ttyin   0xfffffe0058dcf4b0  getty
  746     1   746     0  Ts+     ttyin   0xfffffe0058dcf8b0  getty
  745     1   745     0  Ts+     ttyin   0xfffffe0058dcfcb0  getty
  744     1   744     0  Ts+     ttyin   0xfffffe0058dd00b0  getty
  743     1   743     0  Ts+     ttyin   0xfffffe0058dd04b0  getty
  742     1   742     0  Ts+     ttyin   0xfffffe0058dd08b0  getty
  741     1   741     0  Ts+     ttyin   0xfffffe0058dd0cb0  getty
  740     1   740     0  Ts+     ttyin   0xfffffe0058dd10b0  getty
  738     1    18     0  S+      piperd  0xfffffe005a0499e0  logger
  737   736    18     0  S+      nanslp  0xffffffff83b9c501  sleep
  736     1    18     0  S+      wait    0xfffffe0054803020  sh
  686     1   686     0  Ss      nanslp  0xffffffff83b9c500  cron
  682     1   682     0  Ss      select  0xfffffe0059f0c5c0  sshd
  495     1   495     0  Ss      select  0xfffffe006e3f2040  syslogd
  424     1   424     0  Ss      wait    0xfffffe0008008060  devd
  423     1   423    65  Ss      select  0xfffffe006e3f1e40  dhclient
  338     1   338     0  Ss      select  0xfffffe006e3f1ec0  dhclient
  335     1   335     0  Ss      select  0xfffffe0059f0c740  dhclient
   17     0     0     0  DL      syncer  0xffffffff83cb9da0  [syncer]
   16     0     0     0  DL      vlruwt  0xfffffe0008026040  [vnlru]
   15     0     0     0  DL      (threaded)                  [bufdaemon]
100080                   D       psleep  0xffffffff83cb8360  [bufdaemon]
100083                   D       -       0xffffffff83002140  [bufspacedaemon-0]
100095                   D       sdflush 0xfffffe0059edc4e8  [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83d03380  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100078                   D       psleep  0xffffffff83ce92f8  [dom0]
100081                   D       launds  0xffffffff83ce9304  [laundry: dom0]
100082                   D       umarcl  0xffffffff81dc6e20  [uma]
    7     0     0     0  DL      -       0xffffffff83919cd0  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff845d5850  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff844a46c0  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100046                   D       -       0xffffffff838e4340  [doneq0]
100047                   D       -       0xffffffff838e42c0  [async]
100076                   D       -       0xffffffff838e4140  [scanner]
    3     0     0     0  DL      (threaded)                  [crypto]
100043                   D       crypto_ 0xffffffff83ce4b00  [crypto]
100044                   D       crypto_ 0xfffffe005856d030  [crypto returns 0]
100045                   D       crypto_ 0xfffffe005856d080  [crypto returns 1]
   14     0     0     0  DL      seqstat 0xfffffe00547f6088  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100037                   D       -       0xffffffff83b44f00  [g_event]
100038                   D       -       0xffffffff83b44f20  [g_up]
100039                   D       -       0xffffffff83b44f40  [g_down]
    2     0     0     0  RL      (threaded)                  [clock]
100031                   I                                   [clock (0)]
100032                   RunQ                                [clock (1)]
   12     0     0     0  RL      (threaded)                  [intr]
100013                   I                                   [swi6: task queue]
100014                   I                                   [swi6: Giant taskq]
100016                   I                                   [swi5: fast taskq]
100033                   Run     CPU 1                       [swi1: netisr 0]
100034                   I                                   [swi1: hpts]
100035                   I                                   [swi1: hpts]
100048                   I                                   [irq24: virtio_pci0]
100049                   I                                   [irq25: virtio_pci0]
100050                   I                                   [irq26: virtio_pci0]
100051                   I                                   [irq27: virtio_pci0]
100052                   I                                   [irq28: virtio_pci1]
100053                   Run     CPU 0                       [irq29: virtio_pci1]
100054                   I                                   [irq30: virtio_pci1]
100055                   I                                   [irq31: virtio_pci1]
100056                   I                                   [irq32: virtio_pci1]
100061                   I                                   [irq10: virtio_pci2]
100063                   I                                   [irq1: atkbd0]
100064                   I                                   [irq12: psm0]
100065                   I                                   [swi0: uart uart++]
100069                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0008007040  [init]
   10     0     0     0  DL      audit_w 0xffffffff83ce55a0  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       parked  0xffffffff84c2aff0  [swapper]
100005                   D       -       0xfffffe0008bf7d00  [softirq_0]
100006                   D       -       0xfffffe0008bf7c00  [softirq_1]
100007                   D       -       0xfffffe0008bf7b00  [if_io_tqg_0]
100008                   D       -       0xfffffe0008bf7a00  [if_io_tqg_1]
100009                   D       -       0xfffffe0008bf7900  [if_config_tqg_0]
100010                   D       -       0xfffffe0008bf7800  [kqueue_ctx taskq]
100011                   D       -       0xfffffe0008bf7700  [jail_remove taskq]
100012                   D       -       0xfffffe0008bf7600  [bus taskq]
100015                   D       -       0xfffffe0008bf7300  [thread taskq]
100017                   D       -       0xfffffe0008bf7100  [aiod_kick taskq]
100018                   D       -       0xfffffe0008bf7000  [deferred_unmount ta]
100019                   D       -       0xfffffe0008bf6e00  [inm_free taskq]
100020                   D       -       0xfffffe0008bf6d00  [in6m_free taskq]
100021                   D       -       0xfffffe0008bf6c00  [linuxkpi_irq_wq]
100022                   D       -       0xfffffe0008bf6b00  [linuxkpi_short_wq_0]
100023                   D       -       0xfffffe0008bf6b00  [linuxkpi_short_wq_1]
100024                   D       -       0xfffffe0008bf6b00  [linuxkpi_short_wq_2]
100025                   D       -       0xfffffe0008bf6b00  [linuxkpi_short_wq_3]
100026                   D       -       0xfffffe0008bf6a00  [linuxkpi_long_wq_0]
100027                   D       -       0xfffffe0008bf6a00  [linuxkpi_long_wq_1]
100028                   D       -       0xfffffe0008bf6a00  [linuxkpi_long_wq_2]
100029                   D       -       0xfffffe0008bf6a00  [linuxkpi_long_wq_3]
100036                   D       -       0xfffffe0008bf6900  [firmware taskq]
100041                   D       -       0xfffffe0008bf6600  [crypto_0]
100042                   D       -       0xfffffe0008bf6600  [crypto_1]
100057                   D       -       0xfffffe0008bf6400  [vtnet0 rxq 0]
100058                   D       -       0xfffffe0008bf6300  [vtnet0 txq 0]
100059                   D       -       0xfffffe0008bf6200  [vtnet0 rxq 1]
100060                   D       -       0xfffffe0008bf6100  [vtnet0 txq 1]
100062                   D       vtbslp  0xfffffe0058586680  [virtio_balloon]
100066                   D       -       0xffffffff827ad9e0  [deadlkres]
100070                   D       -       0xfffffe0058f59b00  [acpi_task_0]
100071                   D       -       0xfffffe0058f59b00  [acpi_task_1]
100072                   D       -       0xfffffe0058f59b00  [acpi_task_2]
100074                   D       -       0xfffffe0008bf8100  [mca taskq]
100075                   D       -       0xfffffe0008bf6500  [CAM taskq]
100077                   D       -       0xfffffe0008bf5e00  [ipsec_offload]
100327                   D       -       0xfffffe0008bf4c00  [netlink_socket (PID]
100394                   D       -       0xfffffe00780e9b00  [netlink_socket (PID]
db> show all locks
Process 1098 (syz-executor) thread 0xfffffe0054993740 (100642)
exclusive lockmgr bufwait (bufwait) r = 0 (0xfffffe000844bd10) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_bio.c:4023
exclusive lockmgr ufs (ufs) r = 0 (0xfffffe005a111c78) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_syscalls.c:3579
Process 1097 (syz-executor) thread 0xfffffe0054992000 (100637)
exclusive sleep mutex vm reserv (vm reserv) r = 0 (0xfffff8007c7f1460) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_reserv.c:1011
exclusive rw vmobject (vmobject) r = 0 (0xfffffe0054974420) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_map.c:3955
exclusive sx vm map (user) (vm map (user)) r = 0 (0xfffffe0054912980) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_map.c:4094
Process 1096 (syz-executor) thread 0xfffffe0054992740 (100634)
exclusive lockmgr bufwait (bufwait) r = 0 (0xfffffe000862e908) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_bio.c:1752
exclusive lockmgr ufs (ufs) r = 0 (0xfffffe0077c3c228) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_vnops.c:1240
Process 1096 (syz-executor) thread 0xfffffe005495b000 (100636)
exclusive lockmgr ufs (ufs) r = 0 (0xfffffe006e788ac0) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_cache.c:4787
Process 1092 (syz-executor) thread 0xfffffe0054921740 (100627)
exclusive lockmgr bufwait (bufwait) r = 0 (0xfffffe00085cf940) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_bio.c:1752
exclusive lockmgr ufs (ufs) r = 0 (0xfffffe0077d00228) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_vnops.c:1240
Process 12 (intr) thread 0xfffffe000802a000 (100053)
exclusive rw tcpinp (tcpinp) r = 0 (0xfffffe006e733aa0) locked @ /syzkaller/managers/main/kernel/sys/netinet/in_pcb.c:1487
exclusive sleep mutex vtnet0-rx0 (vtnet0-rx0) r = 0 (0xfffffe0058606000) locked @ /syzkaller/managers/main/kernel/sys/dev/virtio/network/if_vtnet.c:2213
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            6        12804K            6
         sctp_stro            9         6930K           13
            linker          376         5059K          508
          tcp_hpts            7         4801K            7
            devbuf         4188         4324K         4214
         sysctloid        35184         2073K        35259
             vtbuf           24         1968K           46
              kobj          331         1324K          504
            newblk           11         1027K         2360
          vfscache            3         1025K            3
          filedesc          110          874K          591
               pcb          100          735K          556
          inodedep           13          517K          578
           subproc          249          514K         1238
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
         vnet_data            2          224K            2
          acpitask            1          224K            1
            KTRACE          102          201K        55720
            acpica         1674          184K        54426
              vmem            5          144K            6
           tidhash            3          141K            3
           pagedep           11          131K          295
        tfo_ccache            1          128K            1
          IP reass            1          128K            1
            DEVFS1          110          110K          127
               sem            4          106K            4
        gtaskqueue           18           98K           18
               bus          997           82K         5063
          mtx_pool            3           74K            3
          syncache            1           68K            1
     NFSD srvcache            3           68K            3
            module          521           66K          521
       ddb_capture            1           64K            1
           kdtrace          321           59K         1748
              umtx          432           54K          432
              temp           36           38K         2013
               BPF           24           37K           32
               shm            3           36K            8
            DEVFS3          129           33K          139
         hostcache            1           32K            1
               msg            4           30K            4
            kbdmux            6           28K            6
        DEVFS_RULE           56           20K           56
            ifaddr           66           19K           69
               LRO           18           19K           18
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
          routetbl          135           16K          425
           ithread           90           15K           90
         sctp_atcl           38           15K          194
            bus-sc           34           15K         1647
           lltable           44           14K           45
      eventhandler          163           14K          163
             ifnet            7           13K            7
       ether_multi          152           13K          174
             shmfd           10           12K           17
              kenv           95           12K           95
              GEOM           68           12K          508
         CAM queue            5           11K         1528
              rman           82           10K          437
              cred           36            9K          264
               rpc            8            9K            8
            plimit           23            9K          339
         in6_multi           65            9K           65
         bmsafemap            2            9K          507
            kqueue          121            9K         1554
           devstat            4            9K            4
              UART           12            9K           12
              ksem            1            8K            5
           filemon            1            8K            8
       pfs_vncache            1            8K            1
         taskqueue           75            8K           84
     audit_evclass          239            8K          301
           pwddesc          115            8K         1119
            sglist            6            7K            6
           CAM DEV            3            6K          510
            crypto           16            6K           53
         pfs_nodes           22            6K           22
       ufs_dirhash           24            5K           36
          pf_ifnet           11            5K           20
               UMA          269            5K          269
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
           md_disk            1            4K            3
             evdev            4            4K            4
            DEVFSP           61            4K          144
           acpisem           28            4K           28
            CC Mem           27            4K          319
         proc-args          133            4K         2133
             selfd           46            3K        62354
          terminal           11            3K           11
           session           22            3K           40
             lockf           25            3K          210
           uidinfo            6            3K           17
           acpidev           20            3K           20
             hhook            8            3K           10
             clone            9            3K            9
          kcovinfo           36            3K           36
       inpcbpolicy           68            3K          716
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
            ip6ndp           12            2K           13
         sctp_atky           47            2K          207
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           CAM XPT           22            2K          543
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                ix            0            0K            0
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            athdev            0            0K            0
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               agp            0            0K            0
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       aacraid_buf            0            0K            0
            aaccam            0            0K            0
            aacbuf            0            0K            0
              zstd            0            0K            0
            XZ_DEC            0            0K            0
            nvlist            0            0K         1050
          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
         scsi_pass            0            0K            0
           scsi_da            0            0K           69
            ata_da            0            0K            0
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           nvme_da            0            0K            0
           CAM CCB            0            0K          523
     CAM ccb queue            0            0K            0
db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8325    1073       13745       0     254   38494208        0
              mbuf    256    8762     900       25324       0     254    2473472        0
          BUF TRIE    152     347   11457        1861       0      62    1794208        0
        malloc-128    128   12569     172       13329       0     126    1630848        0
        malloc-384    384    4157      43        4188       0      30    1612800        0
        RADIX NODE    152    9586     237       38974       0      62    1493096        0
       malloc-4096   4096     332       4         556       0       2    1376256        0
       UMA Slabs 0    112   11236      26       11236       0     126    1261344        0
         sctp_asoc   2256       9     501          13       0     254    1150560        0
         malloc-64     64     406   16667       77836       0     254    1092672        0
      mbuf_cluster   2048     508       0         508       0     254    1040384        0
      malloc-65536  65536      13       2          19       0       1     983040        0
         vmem btag     56   17156      91       17156       0     254     965832        0
      malloc-16384  16384      54       4         483       0       1     950272        0
            socket   1024     110     654        2221       0     254     782336        0
         FFS inode   1168     592      24         954       0       8     719488        0
           sctp_ep   1152      29     482         181       0     254     588672        0
       malloc-4096   4096     135       3        1170       0       2     565248        0
          lkpicurr    168       2    3094           2       0      62     520128        0
              pbuf   2624       0     182           0       0       2     477568        0
        256 Bucket   2048     217      15        1330       0       8     475136        0
         VM OBJECT    264    1683      57       16608       0      30     459360        0
       malloc-2048   2048     132      76         383       0       8     425984        0
            THREAD   1824     204      12         646       0       8     393984        0
        sctp_raddr    736      11     506          15       0     254     380512        0
      malloc-32768  32768       5       6         314       0       1     360448        0
             VNODE    440     631      62         995       0      30     304920        0
         MAP ENTRY     96    2770     254       55054       0     126     290304        0
         malloc-64     64    4038     309        5190       0     254     278208        0
         malloc-16     16   14537     463       15335       0     254     240000        0
            DEVCTL   1024      23     197         150       0       0     225280        0
           tcp_log    416      12     501          49       0     254     213408        0
      malloc-65536  65536       3       0           3       0       1     196608        0
         UMA Zones    768     241       3         241       0      16     187392        0
     FPU_save_area    832     206      19         874       0      16     187200        0
              PROC   1376     115      17        1100       0       8     181632        0
         malloc-32     32    5379     291        6616       0     254     181440        0
        malloc-128    128    1156     239       25584       0     126     178560        0
       FFS2 dinode    256     592      98         954       0      62     176640        0
            lkpimm     56       1    3095           1       0     254     173376        0
             unpcb    320      15     501        1287       0     254     165120        0
       malloc-1024   1024     125      19         158       0      16     147456        0
       S VFS Cache    104    1010     394        1479       0     126     146016        0
        malloc-256    256      40     530        2510       0      62     145920        0
         tcp_inpcb   1304      28      77         318       0       8     136920        0
         filedesc0   1072     115      11        1119       0       8     135072        0
      malloc-65536  65536       0       2          60       0       1     131072        0
      malloc-65536  65536       0       2         110       0       1     131072        0
      malloc-32768  32768       2       2          14       0       1     131072        0
       malloc-2048   2048       6      58        1041       0       8     131072        0
       mbuf_packet    256      59     449        1510       0     254     130048        0
          ksiginfo    112     112     932         313       0     126     116928        0
    ertt_txseginfo     40       6    2822        6665       0     254     113120        0
             g_bio    408       8     262       11577       0      30     110160        0
       malloc-4096   4096      18       6          32       0       2      98304        0
        malloc-256    256     279      96         763       0      62      96000        0
        malloc-384    384     112     128         269       0      30      92160        0
          UMA Kegs    384     226       7         226       0      30      89472        0
         64 Bucket    512      90      78        2315       0      30      86016        0
        128 Bucket   1024      64      19         292       0      16      84992        0
       tcp_bbr_map    128       0     651        1028       0     126      83328        0
        malloc-128    128     370     281         886       0     126      83328        0
      malloc-16384  16384       4       1           6       0       1      81920        0
        malloc-384    384     145      65         711       0      30      80640        0
        malloc-256    256     175     140        1083       0      62      80640        0
        sctp_chunk    152       7     513           7       0     254      79040        0
         malloc-64     64     493     578        1052       0     254      68544        0
         malloc-64     64     521     550        1588       0     254      68544        0
        malloc-128    128     156     371        1473       0     126      67456        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       0       1           8       0       1      65536        0
      malloc-32768  32768       0       2         120       0       1      65536        0
       malloc-8192   8192       8       0           9       0       1      65536        0
        malloc-256    256      85     170         786       0      62      65280        0
        malloc-256    256      96     159         567       0      62      65280        0
        malloc-256    256      37     218        1625       0      62      65280        0
         32 Bucket    256      88     167        1889       0      62      65280        0
             Files     80     360     440        9196       0     126      64000        0
           VMSPACE    584      86      12        1063       0      16      57232        0
         malloc-64     64     236     583        1932       0     254      52416        0
           DIRHASH   1024      34      14          43       0      16      49152        0
             NAMEI   1024       2      46       15791       0      16      49152        0
       malloc-8192   8192       5       1           7       0       1      49152        0
       malloc-2048   2048      12      12          76       0       8      49152        0
       malloc-1024   1024       7      41        1524       0      16      49152        0
       malloc-1024   1024      23      25          31       0      16      49152        0
            da_ccb    544       2      82        3017       0      16      45696        0
             ripcb    376      21      99         172       0      30      45120        0
          syncache    168       0     264           3       0     254      44352        0
            vnpbuf   2624       0      16           1       0      16      41984        0
       malloc-8192   8192       4       1          38       0       1      40960        0
       malloc-8192   8192       1       4          27       0       1      40960        0
            pcpu-8      8    4798     322        4996       0     254      40960        0
              pipe    736      25      30         328       0      16      40480        0
         udp_inpcb    408      16      74         197       0      30      36720        0
         malloc-64     64     131     436        1147       0     254      36288        0
         malloc-64     64       8     559       41689       0     254      36288        0
         malloc-64     64      50     517          60       0     254      36288        0
        malloc-128    128      22     257          75       0     126      35712        0
        malloc-128    128      66     213        3386       0     126      35712        0
        malloc-128    128      85     194         965       0     126      35712        0
        malloc-128    128      26     253         803       0     126      35712        0
      ktls_session    256       2     133           5       0      62      34560        0
     routing nhops    256      28     107          35       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-256    256      71      64         676       0      62      34560        0
        malloc-256    256       8     127        1471       0      62      34560        0
         TURNSTILE    136     217      35         217       0      62      34272        0
        SLEEPQUEUE     88     217     167         217       0     126      33792        0
       malloc-4096   4096       4       4         561       0       2      32768        0
       malloc-2048   2048      12       4          24       0       8      32768        0
       malloc-2048   2048       8       8          43       0       8      32768        0
       malloc-2048   2048       0      16          50       0       8      32768        0
       malloc-2048   2048       1      15         199       0       8      32768        0
       malloc-1024   1024       9      23          57       0      16      32768        0
       malloc-1024   1024       3      29         160       0      16      32768        0
       malloc-1024   1024      18      14          91       0      16      32768        0
       malloc-1024   1024       2      30          22       0      16      32768        0
        malloc-512    512       1      63         111       0      30      32768        0
        malloc-512    512      19      45          72       0      30      32768        0
        malloc-512    512       1      63          95       0      30      32768        0
        malloc-512    512       2      62          49       0      30      32768        0
        malloc-512    512       2      62          52       0      30      32768        0
        malloc-512    512       1      63          22       0      30      32768        0
           pcpu-64     64     496      16         496       0     254      32768        0
       tcp_bbr_pcb    896       2      34          11       0      16      32256        0
sctp_stream_msg_out    112       0     288           2       0     254      32256        0
            ttyinq    160     135      65         300       0      62      32000        0
   tcp_log_id_node    120       1     263           2       0     126      31680        0
              PGRP    120      26     238          47       0     126      31680        0
            clpbuf   2624       0      12          87       0       4      31488        0
        sctp_laddr     48      16     572          32       0     254      28224        0
          rl_entry     48       6     582          92       0     254      28224        0
         malloc-32     32     441     441        1473       0     254      28224        0
         16 Bucket    144      68     128         468       0      62      28224        0
          4 Bucket     48       7     581          13       0     254      28224        0
               AIO    208       1     132          52       0      62      27664        0
     udplite_inpcb    408       4      59          29       0      30      25704        0
            cpuset    200       8     120           9       0      62      25600        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-8192   8192       1       2          82       0       1      24576        0
       malloc-8192   8192       2       1           4       0       1      24576        0
       malloc-4096   4096       1       5          11       0       2      24576        0
 tcp_log_id_bucket    176       1     137           2       0      62      24288        0
               PWD     40      60     546         306       0     254      24240        0
           rtentry    168      30     114          34       0      62      24192        0
          8 Bucket     80      67     233         481       0     126      24000        0
            itimer    352       0      66         107       0      30      23232        0
        malloc-384    384       7      53           7       0      30      23040        0
        malloc-384    384       0      60         343       0      30      23040        0
        malloc-384    384       2      58          60       0      30      23040        0
        malloc-384    384      44      16         365       0      30      23040        0
        malloc-384    384       2      58          27       0      30      23040        0
      tcp_rack_pcb   1088       0      21           6       0       8      22848        0
       Mountpoints   2816       2       6           9       0       4      22528        0
         hostcache     64       2     313           2       0     254      20160        0
              ertt     72      27     253         318       0     126      20160        0
         malloc-32     32      46     584         487       0     254      20160        0
         malloc-32     32     116     514        1243       0     254      20160        0
         malloc-32     32     119     511        7704       0     254      20160        0
         malloc-32     32     120     510         346       0     254      20160        0
         malloc-32     32      24     606        2702       0     254      20160        0
          2 Bucket     32      67     563         503       0     254      20160        0
             KNOTE    160       1     124         262       0      62      20000        0
      tcp_rack_map    128       0     155           9       0     126      19840        0
           cryptop    280       0      70          43       0      30      19600        0
             AIOCB    552       0      35          54       0      16      19320        0
       L VFS Cache    320       0      60          51       0      30      19200        0
            AIOLIO    272       0      70          81       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           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       1       3           6       0       2      16384        0
       malloc-4096   4096       1       3         195       0       2      16384        0
       malloc-4096   4096       0       4          47       0       2      16384        0
       malloc-2048   2048       4       4           4       0       8      16384        0
       malloc-1024   1024       1      15           1       0      16      16384        0
        malloc-512    512       1      31           1       0      30      16384        0
        malloc-512    512       0      32           2       0      30      16384        0
           SMR CPU     32       8     503           8       0     254      16352        0
              kenv    258      17      43        1066       0      30      15480        0
            mqnode    416       3      33           3       0      30      14976        0
         domainset     40       0     315           2       0     254      12600        0
        SMR SHARED     24       8     503           8       0     254      12264        0
         malloc-32     32      14     364          40       0     254      12096        0
      vtnet_tx_hdr     24       0     501        5427       0     254      12024        0
         malloc-16     16      22     728         140       0     254      12000        0
         malloc-16     16      75     675         765       0     254      12000        0
         malloc-16     16      99     651         556       0     254      12000        0
         malloc-16     16     276     474        4702       0     254      12000        0
         malloc-16     16       9     741        5886       0     254      12000        0
         malloc-16     16     283     467         292       0     254      12000        0
         malloc-16     16      15     735       24807       0     254      12000        0
            splice    184       0      63           1       0      62      11592        0
tfo_ccache_entries     80       1     127           1       0     126      10240        0
           pcpu-16     16       8     504           8       0     254       8192        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 frags    256       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 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
               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
           nfspbuf   2624       0       0           0       0       4          0        0
            swwbuf   2624       0       0           0       0       2          0        0
            swrbuf   2624       0       0           0       0       4          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    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-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (13):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/05/02 01:57 freebsd-src 4e3a6fe0134e 51b137cd console log report ci-freebsd-main panic: tcp_do_segment: sent too much
2025/04/29 20:59 freebsd-src 8f58b693814e 4a62c0b1 console log report ci-freebsd-main panic: tcp_do_segment: sent too much
2025/04/27 11:05 freebsd-src 6014596899c5 c6b4fb39 console log report ci-freebsd-main panic: tcp_do_segment: sent too much
2025/04/27 06:19 freebsd-src 6014596899c5 c6b4fb39 console log report ci-freebsd-main panic: tcp_do_segment: sent too much
2025/04/26 20:08 freebsd-src 52cc1708f5af c6b4fb39 console log report ci-freebsd-main panic: tcp_do_segment: sent too much
2025/04/26 20:02 freebsd-src 52cc1708f5af c6b4fb39 console log report ci-freebsd-main panic: tcp_do_segment: sent too much
2025/04/26 13:16 freebsd-src 52cc1708f5af c6b4fb39 console log report ci-freebsd-main panic: tcp_do_segment: sent too much
2025/04/26 13:13 freebsd-src 52cc1708f5af c6b4fb39 console log report ci-freebsd-main panic: tcp_do_segment: sent too much
2025/04/25 14:11 freebsd-src 736e2ab5ef3c dea5c7e4 console log report ci-freebsd-main panic: tcp_do_segment: sent too much
2025/04/25 07:28 freebsd-src 9ae138aa5c1e e3715315 console log report ci-freebsd-main panic: tcp_do_segment: sent too much
2025/04/01 12:58 freebsd-src 7becd87c988c b8645499 console log report ci-freebsd-main panic: tcp_do_segment: sent too much
2025/03/30 18:54 freebsd-src 0cc5e57d2d31 d3999433 console log report ci-freebsd-main panic: tcp_do_segment: sent too much
2025/03/30 16:48 freebsd-src 0cc5e57d2d31 d3999433 console log report ci-freebsd-main panic: tcp_do_segment: sent too much
* Struck through repros no longer work on HEAD.