syzbot


Fatal trap NUM: page fault in in_pcbremhash_locked (2)

Status: upstream: reported on 2025/07/04 10:09
Reported-by: syzbot+32345032523536c88642@syzkaller.appspotmail.com
First crash: 35d, last: 4d23h
Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd Fatal trap NUM: page fault in in_pcbremhash_locked -1 C 219 52d 168d 2/2 fixed on 2025/06/17 18:38

Sample crash report:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0xffffffffffffffff
fault code		= supervisor write data, page not present
instruction pointer	= 0x20:0xffffffff81996843
stack pointer	        = 0x28:0xfffffe0056dd3540
frame pointer	        = 0x28:0xfffffe0056dd3570
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 849 (syz-executor)
rdi: fffffe00776b7a80 rsi: 0000000000000000 rdx: 0000000000000000
rcx: 000000000eed6f50  r8: 0000000000000000  r9: 0000000000000001
rax: ffffffffffffffff rbx: ffff
fe00776b7ac4 rbp: fffffe0056dd3570

FreeBSD/amd64r10: 0000000000000000 r11: 0000000000000002 r12: ffffffffffffffff
 (ci-freebsd-mair13: fffffe00776b7cd0 r14: fffffe00776b7a80 r15: fffffe00776b7a88
n-7.us-central1-trap number		= 12
panic: page fault
cpuid = 0
time = 1754006254
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0056dd2d70
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0056dd2ed0
vpanic() at vpanic+0x257/frame 0xfffffe0056dd3090
panic() at panic+0xb5/frame 0xfffffe0056dd3150
trap_pfault() at trap_pfault+0xaf2/frame 0xfffffe0056dd3290
trap() at trap+0x78e/frame 0xfffffe0056dd3470
calltrap() at calltrap+0x8/frame 0xfffffe0056dd3470
--- trap 0xc, rip = 0xffffffff81996843, rsp = 0xfffffe0056dd3540, rbp = 0xfffffe0056dd3570 ---
in_pcbremhash_locked() at in_pcbremhash_locked+0x263/frame 0xfffffe0056dd3570
in_pcbdrop() at in_pcbdrop+0x98/frame 0xfffffe0056dd3590
tcp_close() at tcp_close+0x177/frame 0xfffffe0056dd3660
tcp_disconnect() at tcp_disconnect+0x1ef/frame 0xfffffe0056dd3690
tcp_usr_close() at tcp_usr_close+0x189/frame 0xfffffe0056dd3770
soclose() at soclose+0x3d0/frame 0xfffffe0056dd3860
_fdrop() at _fdrop+0x5c/frame 0xfffffe0056dd3890
closef() at closef+0x655/frame 0xfffffe0056dd3a70
fdescfree() at fdescfree+0xa5e/frame 0xfffffe0056dd3c50
exit1() at exit1+0x887/frame 0xfffffe0056dd3cf0
sys_exit() at sys_exit+0x28/frame 0xfffffe0056dd3d10
amd64_syscall() at amd64_syscall+0x4e2/frame 0xfffffe0056dd3f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0056dd3f30
--- syscall (1, FreeBSD ELF64, exit), rip = 0x3a1e9a, rsp = 0x821104008, rbp = 0x821104010 ---
KDB: enter: panic
[ thread pid 849 tid 100152 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x25c4457(%rip)
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         0xffffffff827cb480  .str.27
rsp         0xfffffe0056dd2eb0
rbp         0xfffffe0056dd2ed0
rsi                          0
rdi         0xffffffff81614c09  printf+0x149
r8                           0
r9                  0xffffffff
r10                          0
r11                       0x17
r12         0xfffffe005411c780
r13         0xfffffffffffffffe
r14         0xffffffff827cb480  .str.27
r15                          0
rip         0xffffffff815fe73e  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x25c4457(%rip)
db> show proc
Process 849 (syz-executor) at 0xfffffe005410d580:
 state: NORMAL
 uid: 0  gids: 0, 5
 parent: pid 763 at 0xfffffe00540e2020
 ABI: FreeBSD ELF64
 flag: 0x10002000  flag2: 0x40000
 arguments: ./syz-executor exec
 reaper: 0xfffffe0007809040 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe0007811db0
   (map 0xfffffe0007811db0)
   (map.pmap 0xfffffe0007811e50)
   (pmap 0xfffffe0007811ec0)
 threads: 1
100152                   Run     CPU 0                       syz-executor
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  855   765   765     0  R       (threaded)                  syz-executor
100117                   Run     CPU 1                       syz-executor
100190                   RunQ                                syz-executor
  854   766   766     0  R                                   syz-executor
  853     1   766     0  S       uwait   0xfffffe00584f3080  syz-executor
  851     1   765     0  S       uwait   0xfffffe0053e11b80  syz-executor
  849   763   763     0  RE      CPU 0                       syz-executor
  848     1   766     0  S       uwait   0xfffffe0053e11d80  syz-executor
  847     1   766     0  S       uwait   0xfffffe0053e11c80  syz-executor
  846     1   763     0  S       uwait   0xfffffe00584f2c00  syz-executor
  843   764   764     0  R       (threaded)                  syz-executor
100113                   RunQ                                syz-executor
100169                   S       aiowc   0xfffffe00540e43e8  syz-executor
100170                   S       uwait   0xfffffe007769b380  syz-executor
  842     1   763     0  S       uwait   0xfffffe007769b280  syz-executor
  839     1   766    -1  S       uwait   0xfffffe00584f2b00  syz-executor
  835     1   765     0  S       uwait   0xfffffe00584f2e00  syz-executor
  830     0     0     0  DL      mdwait  0xfffffe006de65000  [md0]
  827     0     0     0  DL      aiordy  0xfffffe005410e5a0  [aiod4]
  826     0     0     0  DL      aiordy  0xfffffe00540e35a0  [aiod3]
  825     0     0     0  DL      aiordy  0xfffffe00540f3b00  [aiod2]
  824     0     0     0  DL      aiordy  0xfffffe00540ab5c0  [aiod1]
  822     1   766     0  S       uwait   0xfffffe00584f2a00  syz-executor
  818   805   818     0  Ss      select  0xfffffe0059b69240  dhclient
  811     1   811     0  Ss      select  0xfffffe006e4d7640  dhclient
  806     1   764 60929  S       uwait   0xfffffe00584f3480  syz-executor
  805   787   423    65  S       select  0xfffffe0059b692c0  dhclient
  787   423   423     0  S       wait    0xfffffe00540e3b00  sh
  766   762   766     0  S       nanslp  0xffffffff83ba3c01  syz-executor
  765   762   765     0  S       nanslp  0xffffffff83ba3c01  syz-executor
  764   762   764     0  R                                   syz-executor
  763   762   763     0  S       nanslp  0xffffffff83ba3c01  syz-executor
  762   760   760     0  R                                   syz-executor
  760   758   760     0  Ss      sigsusp 0xfffffe00540e1b70  csh
  758   681   758     0  Ss      select  0xfffffe0059abe5c0  sshd
  747     1   747     0  Ss+     ttyin   0xfffffe0058298cb0  getty
  746     1   746     0  Ss+     ttyin   0xfffffe00585be4b0  getty
  745     1   745     0  Ss+     ttyin   0xfffffe00585be8b0  getty
  744     1   744     0  Ss+     ttyin   0xfffffe00585becb0  getty
  743     1   743     0  Ss+     ttyin   0xfffffe00585bf0b0  getty
  742     1   742     0  Ss+     ttyin   0xfffffe00585bf4b0  getty
  741     1   741     0  Ss+     ttyin   0xfffffe00585bf8b0  getty
  740     1   740     0  Ss+     ttyin   0xfffffe00585bfcb0  getty
  739     1   739     0  Ss+     ttyin   0xfffffe00585c00b0  getty
  737     1    17     0  S+      piperd  0xfffffe00597132e0  logger
  736   735    17     0  S+      nanslp  0xffffffff83ba3c00  sleep
  735     1    17     0  S+      wait    0xfffffe00540e2ae0  sh
  685     1   685     0  Ss      nanslp  0xffffffff83ba3c00  cron
  681     1   681     0  Ss      select  0xfffffe0059abe740  sshd
  494     1   494     0  Ss      select  0xfffffe0059abe7c0  syslogd
  423     1   423     0  Ss      wait    0xfffffe00540aa040  devd
  422     1   422    65  Ss      select  0xfffffe0059abe8c0  dhclient
  337     1   337     0  Ss      select  0xfffffe0059abe940  dhclient
  334     1   334     0  Ss      select  0xfffffe0059b699c0  dhclient
   16     0     0     0  DL      syncer  0xffffffff83cc1820  [syncer]
   15     0     0     0  DL      vlruwt  0xfffffe000780a060  [vnlru]
   14     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff83cbfd60  [bufdaemon]
100082                   D       -       0xffffffff83001ec0  [bufspacedaemon-0]
100093                   D       sdflush 0xfffffe0057dc74e8  [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83d0acc0  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff83cf0d88  [dom0]
100080                   D       launds  0xffffffff83cf0d94  [laundry: dom0]
100081                   D       umarcl  0xffffffff81de1040  [uma]
    7     0     0     0  DL      -       0xffffffff8391c5d8  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff847229e0  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff844a8700  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100045                   D       -       0xffffffff838e6340  [doneq0]
100046                   D       -       0xffffffff838e62c0  [async]
100075                   D       -       0xffffffff838e6140  [scanner]
    3     0     0     0  DL      (threaded)                  [crypto]
100042                   D       crypto_ 0xffffffff83cec640  [crypto]
100043                   D       crypto_ 0xfffffe0053ea9030  [crypto returns 0]
100044                   D       crypto_ 0xfffffe0053ea9080  [crypto returns 1]
   13     0     0     0  DL      (threaded)                  [geom]
100037                   D       -       0xffffffff83b4c600  [g_event]
100038                   D       -       0xffffffff83b4c620  [g_up]
100039                   D       -       0xffffffff83b4c640  [g_down]
    2     0     0     0  WL      (threaded)                  [clock]
100031                   I                                   [clock (0)]
100032                   I                                   [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                   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                   RunQ                                [swi0: uart uart++]
100068                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0007809040  [init]
   10     0     0     0  DL      audit_w 0xffffffff83ced0e0  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       parked  0xffffffff84c3dff0  [swapper]
100005                   D       -       0xfffffe00083f7000  [softirq_0]
100006                   D       -       0xfffffe00083f6e00  [softirq_1]
100007                   D       -       0xfffffe00083f6d00  [if_io_tqg_0]
100008                   D       -       0xfffffe00083f6c00  [if_io_tqg_1]
100009                   D       -       0xfffffe00083f6b00  [if_config_tqg_0]
100010                   D       -       0xfffffe00083f6a00  [kqueue_ctx taskq]
100011                   D       -       0xfffffe00083f6900  [jail_remove taskq]
100012                   D       -       0xfffffe00083f6800  [bus taskq]
100015                   D       -       0xfffffe00083f6500  [thread taskq]
100017                   D       -       0xfffffe00083f6300  [aiod_kick taskq]
100018                   D       -       0xfffffe00083f6200  [deferred_unmount ta]
100019                   D       -       0xfffffe00083f6100  [inm_free taskq]
100020                   D       -       0xfffffe00083f6000  [in6m_free taskq]
100021                   D       -       0xfffffe00083f5e00  [linuxkpi_irq_wq]
100022                   D       -       0xfffffe00083f5d00  [linuxkpi_short_wq_0]
100023                   D       -       0xfffffe00083f5d00  [linuxkpi_short_wq_1]
100024                   D       -       0xfffffe00083f5d00  [linuxkpi_short_wq_2]
100025                   D       -       0xfffffe00083f5d00  [linuxkpi_short_wq_3]
100026                   D       -       0xfffffe00083f5c00  [linuxkpi_long_wq_0]
100027                   D       -       0xfffffe00083f5c00  [linuxkpi_long_wq_1]
100028                   D       -       0xfffffe00083f5c00  [linuxkpi_long_wq_2]
100029                   D       -       0xfffffe00083f5c00  [linuxkpi_long_wq_3]
100036                   D       -       0xfffffe00083f5b00  [firmware taskq]
100040                   D       -       0xfffffe00083f5a00  [crypto_0]
100041                   D       -       0xfffffe00083f5a00  [crypto_1]
100056                   D       -       0xfffffe00083f5800  [vtnet0 rxq 0]
100057                   D       -       0xfffffe00083f5700  [vtnet0 txq 0]
100058                   D       -       0xfffffe00083f5600  [vtnet0 rxq 1]
100059                   D       -       0xfffffe00083f5500  [vtnet0 txq 1]
100061                   D       vtbslp  0xfffffe0057d80e00  [virtio_balloon]
100065                   D       -       0xffffffff827cfb61  [deadlkres]
100069                   D       -       0xfffffe005940b300  [acpi_task_0]
100070                   D       -       0xfffffe005940b300  [acpi_task_1]
100071                   D       -       0xfffffe005940b300  [acpi_task_2]
100073                   D       -       0xfffffe00083f7100  [mca taskq]
100074                   D       -       0xfffffe00083f5900  [CAM taskq]
100076                   D       -       0xfffffe005940b200  [ipsec_offload]
db> show all locks
Process 855 (syz-executor) thread 0xfffffe005410b000 (100117)
shared sx vm map (user) (vm map (user)) r = 0 (0xfffffe0007810bc8) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_map.c:4998
Process 855 (syz-executor) thread 0xfffffe005411b780 (100190)
exclusive lockmgr bufwait (bufwait) r = 0 (0xfffffe0007d0f910) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_bio.c:4022
exclusive lockmgr ufs (ufs) r = 0 (0xfffffe005976f3e0) locked @ /syzkaller/managers/main/kernel/sys/ufs/ufs/ufs_vnops.c:2942
Process 849 (syz-executor) thread 0xfffffe005411c780 (100152)
exclusive sleep mutex tcphash (tcphash) r = 0 (0xfffffe0007a49a00) locked @ /syzkaller/managers/main/kernel/sys/netinet/in_pcb.c:2734
exclusive rw tcpinp (tcpinp) r = 0 (0xfffffe00776b7aa0) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_usrreq.c:1313
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            6        12804K            6
            linker          376         5079K          522
          tcp_hpts            7         4801K            7
            devbuf         4187         4323K         4213
         sysctloid        34891         2055K        34966
             vtbuf           24         1968K           46
              kobj          330         1320K          503
            newblk           21         1029K          607
          vfscache            3         1025K            3
               pcb           39          680K           76
          inodedep           21          520K          155
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
          filedesc           38          297K          135
           subproc          144          294K          933
         vnet_data            2          224K            2
          acpitask            1          224K            1
            KTRACE          100          200K          100
            acpica         1674          184K        54426
              vmem            5          144K            6
           tidhash            3          141K            3
           pagedep           19          133K           57
        tfo_ccache            1          128K            1
          IP reass            1          128K            1
            DEVFS1          107          107K          124
               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          522
       ddb_capture            1           64K            1
              temp           33           53K         1851
           kdtrace          203           39K         1050
              umtx          304           38K          304
               BPF           22           36K           25
         hostcache            1           32K            1
               shm            1           32K            2
            DEVFS3          126           32K          136
               msg            4           30K            4
            kbdmux            6           28K            6
        DEVFS_RULE           56           20K           56
            ifaddr           67           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
            bus-sc           34           15K         1647
           lltable           44           14K           44
      eventhandler          163           14K          163
             ifnet            7           13K            7
       ether_multi          152           13K          162
              kenv           95           12K           95
              GEOM           54           12K          457
              cred           28           11K          208
         CAM queue            5           11K         1528
              rman           82           10K          437
            plimit           25           10K          341
               rpc            8            9K            8
         in6_multi           65            9K           65
         bmsafemap            2            9K          118
           devstat            4            9K            4
              UART           12            9K           12
              ksem            1            8K            1
           filemon            1            8K            1
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
            kqueue           75            8K          981
     audit_evclass          240            8K          303
         taskqueue           69            8K           75
            sglist            6            7K            6
           CAM DEV            3            6K          510
         pfs_nodes           22            6K           22
       ufs_dirhash           24            5K           24
               UMA          266            5K          266
          pf_ifnet           10            5K           19
                vt           11            5K           11
           pwddesc           65            5K          859
           memdesc            1            4K            1
               MCA           32            4K           32
           md_disk            1            4K            1
             evdev            4            4K            4
           acpisem           28            4K           28
            DEVFSP           48            3K           59
          terminal           11            3K           11
           session           22            3K           33
         proc-args           92            3K         1900
           uidinfo            6            3K           11
           acpidev           20            3K           20
             hhook            8            3K           10
             clone            9            3K            9
          kcovinfo           36            3K           36
           pf_rule            1            2K            2
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
             lockf           19            2K           29
             selfd           31            2K         7834
         sctp_atcl            5            2K            9
            ip6ndp           12            2K           13
            Unitno           29            2K           50
          sctp_ifa           13            2K           14
           CAM XPT           22            2K          543
         newdirblk           12            2K           43
          in_multi            6            2K            8
               tun            4            2K            4
         toponodes            6            2K            6
       ipsecpolicy            2            2K            2
            select           11            2K           30
            diradd           10            2K          105
               msi            9            2K            9
           netlink            2            2K           73
            CC Mem            9            2K           25
           softdep            1            1K            1
            dirrem            4            1K           84
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           16
      NFSD session            1            1K            1
        CAM periph            4            1K          271
             ipsec            3            1K            3
          sctp_ifn            6            1K           14
             mkdir            6            1K           86
          indirdep            3            1K           44
               mld            6            1K            6
              igmp            6            1K            6
              pfil            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
               osd           14            1K           42
            crypto            4            1K           10
       inpcbpolicy           20            1K          192
 encap_export_host           12            1K           12
              cdev            2            1K            2
       lkpikmalloc            8            1K            9
      counter_rate           13            1K           13
    chacha20random            1            1K            1
            biobuf            1            1K            1
           VN POLL            2            1K            4
            vnodes            1            1K            1
          procdesc            2            1K            8
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
           CAM SIM            2            1K            2
            feeder            7            1K            7
         cryptodev            3            1K           49
           tcpfunc            3            1K            3
        loginclass            3            1K            5
            prison            6            1K            6
         sctp_atky            5            1K            9
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
               aio            4            1K            4
          pmchooks            1            1K            1
          filecaps            5            1K           73
          CAM path            4            1K         1034
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
            soname            4            1K         3332
         sctp_athm            5            1K            9
          sctp_vrf            1            1K            1
      ip6_moptions            2            1K            2
        ip_msource            1            1K            1
              vnet            1            1K            1
          sendfile            1            1K           60
               pmc            1            1K            1
filedesc_to_leader            1            1K            2
           entropy            2            1K           33
          acpiintr            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          freework            1            1K           51
          p1003.1b            1            1K            1
      tcp_pcm_rack            0            0K            0
       tcp_do_rack            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8321    1077       12902       0     254   38494208        0
              mbuf    256    8623    1038       16599       0     254    2473216        0
          BUF TRIE    152     240   11564         632       0      62    1794208        0
        malloc-384    384    4157      43        4172       0      30    1612800        0
        malloc-128    128   12061     184       12660       0     126    1567360        0
           tcp_log    416    1818    1746        5513       0     254    1482624        0
       malloc-4096   4096     334       2        1063       0       2    1376256        0
       UMA Slabs 0    112   11056      26       11056       0     126    1241184        0
      mbuf_cluster   2048     254     254         255       0     254    1040384        0
        RADIX NODE    152    6398     305       27855       0      62    1018856        0
         vmem btag     56   16371      84       16371       0     254     921480        0
      malloc-65536  65536      13       1          17       0       1     917504        0
         FFS inode   1168     537      23         596       0       8     654080        0
           sctp_ep   1152       5     506           9       0     254     588672        0
       malloc-2048   2048       6     266         517       0       8     557056        0
            socket   1024      42     466        1413       0     254     520192        0
          lkpicurr    168       2    3094           2       0      62     520128        0
              pbuf   2624       0     182           0       0       2     477568        0
      malloc-16384  16384      22       1          70       0       1     376832        0
         VM OBJECT    248    1225      87       13746       0      62     325376        0
            THREAD   1860     136      16         190       0       8     282720        0
       malloc-4096   4096      67       1         861       0       2     278528        0
             VNODE    440     575      55         636       0      30     277200        0
        256 Bucket   2048     118      12        1009       0       8     266240        0
         malloc-64     64    4002      93        4037       0     254     262080        0
       malloc-2048   2048     108      12         137       0       8     245760        0
         malloc-16     16   14419      81       14568       0     254     232000        0
      malloc-32768  32768       7       0           7       0       1     229376        0
            DEVCTL   1024      23     197         150       0       0     225280        0
         UMA Zones    768     238       1         238       0      16     183552        0
         malloc-32     32    5325     345        5388       0     254     181440        0
        malloc-128    128    1157     238       25559       0     126     178560        0
            lkpimm     56       1    3095           1       0     254     173376        0
             unpcb    320      14     502        1183       0     254     165120        0
      malloc-32768  32768       0       5          27       0       1     163840        0
       FFS2 dinode    256     537      93         595       0      62     161280        0
         MAP ENTRY     96    1557      81       43318       0     126     157248        0
     FPU_save_area    832     138      42         221       0      16     149760        0
       malloc-1024   1024     123      21         146       0      16     147456        0
       S VFS Cache    104    1003     284        1096       0     126     133848        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2          61       0       1     131072        0
      malloc-65536  65536       0       2         110       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
        malloc-256    256      47     463         760       0      62     130560        0
          ksiginfo    112      57     987          88       0     126     116928        0
              PROC   1376      65      12         858       0       8     105952        0
       malloc-4096   4096      20       4          71       0       2      98304        0
         filedesc0   1072      66      18         859       0       8      90048        0
          UMA Kegs    384     225       8         225       0      30      89472        0
             g_bio    408       0     210        5967       0      30      85680        0
        128 Bucket   1024      45      38         248       0      16      84992        0
        malloc-256    256     232      83         465       0      62      80640        0
         malloc-64     64     653     418        2769       0     254      68544        0
         malloc-64     64     512     559        1559       0     254      68544        0
        malloc-128    128     355     172         368       0     126      67456        0
        malloc-128    128     333     194         753       0     126      67456        0
      malloc-65536  65536       0       1           8       0       1      65536        0
      malloc-32768  32768       0       2          12       0       1      65536        0
      malloc-32768  32768       1       1           4       0       1      65536        0
      malloc-32768  32768       0       2         120       0       1      65536        0
       malloc-4096   4096      13       3          25       0       2      65536        0
        malloc-256    256     156      99         624       0      62      65280        0
       mbuf_packet    256      10     244         217       0     254      65024        0
        malloc-384    384      66      84         541       0      30      57600        0
       malloc-8192   8192       6       1           8       0       1      57344        0
        malloc-256    256      50     145         183       0      62      49920        0
        malloc-256    256      94     101         232       0      62      49920        0
         32 Bucket    256      72     123         416       0      62      49920        0
           DIRHASH   1024      34      14          34       0      16      49152        0
             NAMEI   1024       5      43       13128       0      16      49152        0
      malloc-16384  16384       1       2         191       0       1      49152        0
       malloc-8192   8192       4       2          87       0       1      49152        0
       malloc-2048   2048      15       9          35       0       8      49152        0
       malloc-2048   2048       2      22         575       0       8      49152        0
       malloc-1024   1024      11      37         519       0      16      49152        0
         64 Bucket    512      78      18        1805       0      30      49152        0
        malloc-384    384      80      40          80       0      30      46080        0
            da_ccb    544       0      84        1593       0      16      45696        0
          syncache    168       0     264           3       0     254      44352        0
             Files     80     200     350        7215       0     126      44000        0
         tcp_inpcb   1304       9      24          25       0       8      43032        0
            vnpbuf   2624       0      16           1       0      16      41984        0
       malloc-8192   8192       5       0           5       0       1      40960        0
            pcpu-8      8    4730     390        4918       0     254      40960        0
           VMSPACE    584      45      25         839       0      16      40880        0
         udp_inpcb    408       6      84         149       0      30      36720        0
         malloc-64     64      16     551          53       0     254      36288        0
         malloc-64     64     282     285       13652       0     254      36288        0
         malloc-64     64     103     464        9235       0     254      36288        0
         malloc-64     64      19     548          84       0     254      36288        0
         malloc-64     64      45     522          48       0     254      36288        0
        malloc-128    128      55     224         127       0     126      35712        0
        malloc-128    128      38     241        3343       0     126      35712        0
        malloc-128    128     103     176         686       0     126      35712        0
        malloc-128    128      95     184         110       0     126      35712        0
     routing nhops    256      28     107          35       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-384    384      28      62         551       0      30      34560        0
        malloc-384    384      53      37          54       0      30      34560        0
        malloc-256    256      48      87         128       0      62      34560        0
        malloc-256    256      17     118         427       0      62      34560        0
        malloc-256    256      18     117        1023       0      62      34560        0
      malloc-16384  16384       2       0           2       0       1      32768        0
       malloc-8192   8192       2       2          36       0       1      32768        0
       malloc-8192   8192       2       2          22       0       1      32768        0
       malloc-2048   2048      10       6          22       0       8      32768        0
       malloc-2048   2048       5      11          52       0       8      32768        0
       malloc-2048   2048       3      13           5       0       8      32768        0
       malloc-2048   2048       2      14         195       0       8      32768        0
       malloc-1024   1024       2      30          49       0      16      32768        0
       malloc-1024   1024       1      31         988       0      16      32768        0
       malloc-1024   1024       5      27         162       0      16      32768        0
       malloc-1024   1024      10      22          14       0      16      32768        0
       malloc-1024   1024      19      13          25       0      16      32768        0
       malloc-1024   1024       1      31          16       0      16      32768        0
        malloc-512    512       8      56          16       0      30      32768        0
        malloc-512    512       1      63          13       0      30      32768        0
        malloc-512    512       1      63          15       0      30      32768        0
        malloc-512    512       4      60          65       0      30      32768        0
        malloc-512    512       2      62          24       0      30      32768        0
        malloc-512    512       8      56          10       0      30      32768        0
           pcpu-64     64     498      14         498       0     254      32768        0
            ttyinq    160     135      65         300       0      62      32000        0
              PGRP    120      26     238          37       0     126      31680        0
            clpbuf   2624       0      12          23       0       4      31488        0
        sctp_laddr     48       0     588          12       0     254      28224        0
         malloc-32     32     379     503        2340       0     254      28224        0
         16 Bucket    144      59     137         272       0      62      28224        0
          4 Bucket     48       7     581           9       0     254      28224        0
               AIO    208       2     131           4       0      62      27664        0
     udplite_inpcb    408       0      63           5       0      30      25704        0
         TURNSTILE    136     153      36         153       0      62      25704        0
            cpuset    200       7     121           7       0      62      25600        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-4096   4096       3       3         188       0       2      24576        0
              pipe    736      22      11         293       0      16      24288        0
               PWD     40      26     580         123       0     254      24240        0
           rtentry    168      31     113          35       0      62      24192        0
          8 Bucket     80      77     223         347       0     126      24000        0
        malloc-384    384      27      33          32       0      30      23040        0
        malloc-384    384       7      53           7       0      30      23040        0
             ripcb    376       5      55          13       0      30      22560        0
       Mountpoints   2816       2       6           2       0       4      22528        0
        SLEEPQUEUE     88     153     103         153       0     126      22528        0
         hostcache     64       1     314           1       0     254      20160        0
              ertt     72       9     271          25       0     126      20160        0
         malloc-32     32      70     560         287       0     254      20160        0
         malloc-32     32      41     589         517       0     254      20160        0
         malloc-32     32     131     499         161       0     254      20160        0
         malloc-32     32     117     513         327       0     254      20160        0
         malloc-32     32      40     590        2683       0     254      20160        0
          2 Bucket     32      61     569         359       0     254      20160        0
             KNOTE    160       2     123          88       0      62      20000        0
             AIOCB    552       1      34           3       0      16      19320        0
       L VFS Cache    320       1      59           5       0      30      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       2       0           2       0       1      16384        0
       malloc-4096   4096       3       1           3       0       2      16384        0
       malloc-4096   4096       1       3           3       0       2      16384        0
        malloc-512    512       0      32         110       0      30      16384        0
        malloc-512    512       1      31           2       0      30      16384        0
           SMR CPU     32       8     503           8       0     254      16352        0
           pf tags    104       1     155           1       0     126      16224        0
          rl_entry     48       2     334           2       0     254      16128        0
              kenv    258      17      43        1066       0      30      15480        0
            mqnode    416       3      33           3       0      30      14976        0
        SMR SHARED     24       8     503           8       0     254      12264        0
    ertt_txseginfo     40       0     303         425       0     254      12120        0
         malloc-32     32       7     371          28       0     254      12096        0
         malloc-16     16      19     731          62       0     254      12000        0
         malloc-16     16      45     705         208       0     254      12000        0
         malloc-16     16      41     709          51       0     254      12000        0
         malloc-16     16     241     509        4513       0     254      12000        0
         malloc-16     16       4     746           6       0     254      12000        0
         malloc-16     16     266     484         267       0     254      12000        0
         malloc-16     16      20     730       24807       0     254      12000        0
           cryptop    280       0      42           1       0      30      11760        0
            AIOLIO    272       0      42           1       0      30      11424        0
       malloc-4096   4096       0       2           3       0       2       8192        0
           pcpu-16     16       8     504           8       0     254       8192        0
      vtnet_tx_hdr     24       0     334        1611       0     254       8016        0
       UMA Slabs 1    176       9      13           9       0      62       3872        0
        KMAP ENTRY     96      12      27          17       0       0       3744        0
       FFS1 dinode    128       0       0           0       0     126          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    152       0       0           0       0      62          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
  pf fragment node     72       0       0           0       0     126          0        0
          pf frags    232       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0     254          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf 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
      tcp_rack_pcb   1088       0       0           0       0       8          0        0
      tcp_rack_map    128       0       0           0       0     126          0        0
       tcp_bbr_pcb    896       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
sctp_stream_msg_out    112       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     254          0        0
        sctp_chunk    152       0       0           0       0     254          0        0
        sctp_raddr    736       0       0           0       0     254          0        0
         sctp_asoc   2256       0       0           0       0     254          0        0
   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
            itimer    352       0       0           0       0      30          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
         domainset     40       0       0           0       0     254          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-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
        malloc-384    384       0       0           0       0      30          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg     88       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0
db> show all tcpcbs/bl
tcpcb at 0xfffffe00776b7a80
  t_segq first: 0   t_segqlen: 0   t_dupacks: 0
  t_callout: 0xfffffe00776b7c08   t_timers: 0xfffffe00776b7c48
  t_state: 2 (TCPS_SYN_SENT)
  t_flags: 0x140002a0 (TF_REQ_SCALE, TF_REQ_TSTMP, TF_SACK_PERMIT, TF_CLOSED, TF_LRD)
  t_flags2: 0xa (TF2_PLPMTU_PMTUD, TF2_LOG_AUTO)
  snd_una: 0x3a1ac395   snd_max: 0x3a1ac396   snd_nxt: 0x3a1ac396
  snd_up: 0x3a1ac395   snd_wl1: 0x00000000   snd_wl2: 0x00000000
  iss: 0x3a1ac395   irs: 0x00000000   rcv_nxt: 0x00000000
  rcv_adv: 0x0000ffff   rcv_wnd: 0   rcv_up: 0x00000000
  snd_wnd: 4096   snd_cwnd: 1073725440
  snd_ssthresh: 1073725440   snd_recover: 0x3a1ac395
  t_rcvtime: 2147427468   t_startime: 0
  t_rttime: 2147427469   t_rtsq: 0x3a1ac395
  t_rxtcur: 100   t_maxseg: 1440   t_srtt: 0
  t_rttvar: 400   t_rxtshift: 0   t_rttmin: 3
  t_rttupdated: 0   max_sndwnd: 0   t_softerror: 0
  t_oobflags: 0x0 ()   t_iobc: 0x00
  snd_scale: 0   rcv_scale: 0   request_r_scale: 6
  ts_recent: 0   ts_recent_age: 0
  ts_offset: 457498562   last_ack_sent: 0x00000000   snd_cwnd_prev: 0
  snd_ssthresh_prev: 0   snd_recover_prev: 0x00000000   t_badrxtwin: 0
  snd_numholes: 0  snd_holes first: 0
  snd_fack: 0x00000000   rcv_numsacks: 0
  t_rttlow: 0   rfbuf_ts: 39212   rfbuf_cnt: 0
  t_fb.tfb_tcp_block_name: freebsd
  t_cc.name: cubic
  _t_logstate: 1 (TCP_LOG_STATE_TAIL)
  t_lognum: 5   t_loglimit: 5000   t_logsn: 5
     0.000 ATTACH, error: 0
    +0.012 > S 974832533:974832533(0) win 65535 <mss 1440,nop,wscale 6,sackOK,TS val 457537774 ecr 0>
    +0.000 Starting Retransmission timer: 1000 ms
    +0.000 usersend: rcv.acc: 0 rcv.ccc: 0 snd.acc: 0 snd.ccc: 0
    +0.000 SEND, error: 0

Crashes (23):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/31 23:57 freebsd-src 3a686b851f8f 8e9d1dc1 console log report ci-freebsd-main Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/30 09:52 freebsd-src 507f8523f5f6 8e9d1dc1 console log report ci-freebsd-main Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/07 05:30 freebsd-src 3ba480f41801 4f67c4ae console log report ci-freebsd-main Fatal trap NUM: page fault in in_pcbremhash_locked
2025/08/03 23:20 freebsd-src 877e70e6087f 8e9d1dc1 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/08/01 23:38 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/08/01 03:54 freebsd-src ada5bba476bf 8e9d1dc1 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/30 19:52 freebsd-src 14598537acec 8e9d1dc1 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/29 03:40 freebsd-src 9f0f30bc1f5f 8e9d1dc1 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/27 08:31 freebsd-src 92dfc3fbcd79 8e9d1dc1 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/27 01:43 freebsd-src 23401aeb15ce 8e9d1dc1 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/26 10:25 freebsd-src 9ec37e8ff49c 8e9d1dc1 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/25 08:35 freebsd-src 110111a6cca1 8e9d1dc1 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/25 04:03 freebsd-src 110111a6cca1 8e9d1dc1 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/24 22:43 freebsd-src 110111a6cca1 8e9d1dc1 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/24 05:37 freebsd-src 4b5ed4ef606b 8e9d1dc1 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/22 18:47 freebsd-src 0fbe9f8ef94d 8e9d1dc1 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/19 18:03 freebsd-src 4be9c6f38e78 7117feec console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/17 08:09 freebsd-src 55f80afa17e8 44f8051e console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/13 11:24 freebsd-src bf4d2a45b991 3cda49cf console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/10 03:20 freebsd-src 21876224361a 956bd956 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/09 12:57 freebsd-src 0849d876b1ac f4e5e155 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/05 13:44 freebsd-src 9c2509f831e8 4f67c4ae console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
2025/07/04 10:08 freebsd-src 1c1acaf6858b a3c808e4 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in_pcbremhash_locked
* Struck through repros no longer work on HEAD.