syzbot


panic: VOP_READDIR: eofflag not set

Status: fixed on 2025/07/24 06:44
Reported-by: syzbot+4689a0b0d5918a8e3bc4@syzkaller.appspotmail.com
Fix commit: b4f610a6851d vfs: Handle zero-length directory reads
First crash: 36d, last: 36d

Sample crash report:
panic: VOP_READDIR: eofflag not set
cpuid = 1
time = 1753335237
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0056f854b0
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0056f85610
vpanic() at vpanic+0x257/frame 0xfffffe0056f857d0
panic() at panic+0xb5/frame 0xfffffe0056f85890
VOP_READDIR_APV() at VOP_READDIR_APV+0x4ab/frame 0xfffffe0056f85990
kern_getdirentries() at kern_getdirentries+0x6f8/frame 0xfffffe0056f85c50
sys_getdirentries() at sys_getdirentries+0xb6/frame 0xfffffe0056f85d10
amd64_syscall() at amd64_syscall+0x4e2/frame 0xfffffe0056f85f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0056f85f30
--- syscall (198, FreeBSD ELF64, __syscall), rip = 0x3a1afa, rsp = 0x8274dcf08, rbp = 0x8274dcf80 ---
KDB: enter: panic
[ thread pid 1101 tid 100555 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x25c5097(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0xfffffe0002bf1850
rdx                          0
rbx         0xffffffff827c9a00  .str.27
rsp         0xfffffe0056f855f0
rbp         0xfffffe0056f85610
rsi                          0
rdi         0xffffffff81613ec9  printf+0x149
r8                           0
r9                  0xffffffff
r10                        0x1
r11         0xfffffe0054152cd0
r12         0xfffffe0054152780
r13         0xfffffffffffffffd
r14         0xffffffff827c9a00  .str.27
r15                          0
rip         0xffffffff815fd9fe  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x25c5097(%rip)
db> show proc
Process 1101 (syz-executor) at 0xfffffe0054105020:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 980 at 0xfffffe0054104000
 ABI: FreeBSD ELF64
 flag: 0x10000080  flag2: 0
 arguments: ./syz-executor exec
 reaper: 0xfffffe0007809040 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe00540e3b68
   (map 0xfffffe00540e3b68)
   (map.pmap 0xfffffe00540e3c08)
   (pmap 0xfffffe00540e3c78)
 threads: 3
100161                   RunQ                                syz-executor
100555                   Run     CPU 1                       syz-executor
100556                   S       uwait   0xfffffe006e536800  syz-executor
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1103   765   765     0  R                                   syz-executor
 1102  1100   764     0  S       uwait   0xfffffe005814fb80  syz-executor
 1101   980   980     0  R       (threaded)                  syz-executor
100161                   RunQ                                syz-executor
100555                   Run     CPU 1                       syz-executor
100556                   S       uwait   0xfffffe006e536800  syz-executor
 1100   764   764     0  R       (threaded)                  syz-executor
100096                   RunQ                                syz-executor
100554                   RunQ                                syz-executor
 1098     1   980     0  S       uwait   0xfffffe0007771900  syz-executor
 1097     1   980     0  S       uwait   0xfffffe0007771a00  syz-executor
 1095     1   765     0  SV      uwait   0xfffffe005814f380  syz-executor
 1093     1   765     0  S       uwait   0xfffffe0058502980  syz-executor
 1084     1   763     0  SV      uwait   0xfffffe006e536580  syz-executor
 1074     1  1074     0  Ss+     ttyin   0xfffffe00582a4cb0  getty
 1073     1  1073     0  Ss+     ttyin   0xfffffe00582a54b0  getty
 1072     1  1072     0  Ss+     ttyin   0xfffffe0053f69cb0  getty
 1071     1  1071     0  Ss+     ttyin   0xfffffe0053f6a4b0  getty
 1070     1  1070     0  Ss+     ttyin   0xfffffe0053f6acb0  getty
 1069     1  1069     0  Ss+     ttyin   0xfffffe00582798b0  getty
 1068     1  1068     0  Ss+     ttyin   0xfffffe005952ccb0  getty
 1067     1  1067     0  Ss+     ttyin   0xfffffe005952c4b0  getty
 1066     1  1066     0  Ss+     ttyin   0xfffffe0053f694b0  getty
 1055     1   980     0  S       uwait   0xfffffe0058501600  syz-executor
 1041     1   764     0  S       uwait   0xfffffe0058501400  syz-executor
 1031     1   765     0  S       uwait   0xfffffe0058501c80  syz-executor
 1028     1   765     0  S       uwait   0xfffffe0058502700  syz-executor
 1026     1   763 60929  T                                   syz-executor
 1025     1   765     0  S       uwait   0xfffffe0058502100  syz-executor
 1022     1   980     0  S       uwait   0xfffffe005814fc80  syz-executor
 1013     1   764     0  S       uwait   0xfffffe0058150100  syz-executor
 1011     1   763     0  S       uwait   0xfffffe006e535e00  syz-executor
 1010     1   980     0  S       uwait   0xfffffe0058150d80  syz-executor
 1008     1   764     0  S       uwait   0xfffffe006e537300  syz-executor
 1004     1  1000     0  S       uwait   0xfffffe0058502c80  syz-executor
  999     1   765     0  S       uwait   0xfffffe0007771780  syz-executor
  997     1   764     0  S       uwait   0xfffffe0058150500  syz-executor
  990     1   980     0  SV      uwait   0xfffffe0058150300  syz-executor
  980   762   980     0  S       nanslp  0xffffffff83ba3c80  syz-executor
  976     1   765     0  S       uwait   0xfffffe0058150200  syz-executor
  972     1   764 60928  S       uwait   0xfffffe0058150c80  syz-executor
  967     1   765     0  S       uwait   0xfffffe0058501d80  syz-executor
  944     1   764     0  S       uwait   0xfffffe0058502780  syz-executor
  933     1   765     0  S       uwait   0xfffffe006e536380  syz-executor
  932     1   764     0  S       uwait   0xfffffe0058501a80  syz-executor
  922     1   765     0  S       uwait   0xfffffe006e535980  syz-executor
  916     0     0     0  DL      (threaded)                  [KTLS]
100224                   D       -       0xfffffe0059686d00  [thr_0]
100225                   D       -       0xfffffe0059686d80  [thr_1]
100226                   D       -       0xffffffff83cb5528  [reclaim_0]
  915     0     0     0  DL      -       0xffffffff83b4e4a0  [accounting]
  910     1   765     0  S       uwait   0xfffffe0058501e80  syz-executor
  901     1   766     0  S       uwait   0xfffffe0058503200  syz-executor
  899     0     0     0  DL      mdwait  0xfffffe006b761000  [md1]
  896     1   765     0  S       uwait   0xfffffe0007771c80  syz-executor
  894     1   765     0  S       uwait   0xfffffe006e536d80  syz-executor
  892     0     0     0  DL      mdwait  0xfffffe006ddf1000  [md0]
  891     1   766     0  S       uwait   0xfffffe0058501b80  syz-executor
  888     0     0     0  DL      (threaded)                  [so_splice]
100116                   D       -       0xfffffe0059412a80  [thr_0]
100176                   D       -       0xfffffe0059412ac0  [thr_1]
  885     1   766     0  S       uwait   0xfffffe006e537100  syz-executor
  878   779   423     0  S       kqread  0xfffffe005941d200  rtsol
  853     1   765     0  S       uwait   0xfffffe0058150580  syz-executor
  840     1   763     0  S       uwait   0xfffffe0007771380  syz-executor
  837     1   763     0  S       uwait   0xfffffe005814f280  syz-executor
  831     1   763     0  S       uwait   0xfffffe005814f480  syz-executor
  814     0     0     0  DL      aiordy  0xfffffe00540f2ae0  [aiod4]
  813     0     0     0  DL      aiordy  0xfffffe00540f2580  [aiod3]
  812     0     0     0  DL      aiordy  0xfffffe0054106040  [aiod2]
  811     0     0     0  DL      aiordy  0xfffffe00541065a0  [aiod1]
  808     1   764     0  S       uwait   0xfffffe0058502800  syz-executor
  779     1   423     0  S       wait    0xfffffe00540f1560  sh
  765   762   765     0  S       nanslp  0xffffffff83ba3c80  syz-executor
  764   762   764     0  R                                   syz-executor
  763   762   763     0  R       CPU 0                       syz-executor
  762   760   760     0  S       select  0xfffffe00077e54c0  syz-executor
  760   758   760     0  Ss      sigsusp 0xfffffe0054004bb0  csh
  758     1   758     0  Ss      select  0xfffffe00077e55c0  sshd
   16     0     0     0  DL      syncer  0xffffffff83cc1720  [syncer]
   15     0     0     0  DL      vlruwt  0xfffffe000780a060  [vnlru]
   14     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff83cbfc60  [bufdaemon]
100082                   D       -       0xffffffff83001ec0  [bufspacedaemon-0]
100094                   D       sdflush 0xfffffe00596de0e8  [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83d0abc0  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff83cf0c88  [dom0]
100080                   D       launds  0xffffffff83cf0c94  [laundry: dom0]
100081                   D       umarcl  0xffffffff81ddfbb0  [uma]
    7     0     0     0  DL      -       0xffffffff8391c5d8  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff846349e0  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff844d9700  [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_ 0xffffffff83cec540  [crypto]
100043                   D       crypto_ 0xfffffe0053eb5a30  [crypto returns 0]
100044                   D       crypto_ 0xfffffe0053eb5a80  [crypto returns 1]
   13     0     0     0  DL      (threaded)                  [geom]
100037                   D       -       0xffffffff83b4c620  [g_event]
100038                   D       -       0xffffffff83b4c640  [g_up]
100039                   D       -       0xffffffff83b4c660  [g_down]
    2     0     0     0  WL      (threaded)                  [clock]
100031                   I                                   [clock (0)]
100032                   I                                   [clock (1)]
   12     0     0     0  WL      (threaded)                  [intr]
100013                   I                                   [swi6: task queue]
100014                   I                                   [swi6: Giant taskq]
100016                   I                                   [swi5: fast taskq]
100033                   I                                   [swi1: netisr 0]
100034                   I                                   [swi1: hpts]
100035                   I                                   [swi1: hpts]
100047                   I                                   [irq24: virtio_pci0]
100048                   I                                   [irq25: virtio_pci0]
100049                   I                                   [irq26: virtio_pci0]
100050                   I                                   [irq27: virtio_pci0]
100051                   I                                   [irq28: virtio_pci1]
100052                   I                                   [irq29: virtio_pci1]
100053                   I                                   [irq30: virtio_pci1]
100054                   I                                   [irq31: virtio_pci1]
100055                   I                                   [irq32: virtio_pci1]
100060                   I                                   [irq10: virtio_pci2]
100062                   I                                   [irq1: atkbd0]
100063                   I                                   [irq12: psm0]
100064                   I                                   [swi0: uart uart++]
100068                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0007809040  [init]
   10     0     0     0  DL      audit_w 0xffffffff83cecfe0  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       parked  0xffffffff84c3dff0  [swapper]
100005                   D       -       0xfffffe0053eb6100  [softirq_0]
100006                   D       -       0xfffffe0053eb6000  [softirq_1]
100007                   D       -       0xfffffe0053eb5e00  [if_io_tqg_0]
100008                   D       -       0xfffffe0053eb5d00  [if_io_tqg_1]
100009                   D       -       0xfffffe0053eb5c00  [if_config_tqg_0]
100010                   D       -       0xfffffe00083f7d00  [kqueue_ctx taskq]
100011                   D       -       0xfffffe00083f7c00  [jail_remove taskq]
100012                   D       -       0xfffffe00083f7b00  [bus taskq]
100015                   D       -       0xfffffe00083f7800  [thread taskq]
100017                   D       -       0xfffffe00083f7600  [aiod_kick taskq]
100018                   D       -       0xfffffe00083f7500  [deferred_unmount ta]
100019                   D       -       0xfffffe00083f7400  [inm_free taskq]
100020                   D       -       0xfffffe00083f7300  [in6m_free taskq]
100021                   D       -       0xfffffe00083f7200  [linuxkpi_irq_wq]
100022                   D       -       0xfffffe00083f7100  [linuxkpi_short_wq_0]
100023                   D       -       0xfffffe00083f7100  [linuxkpi_short_wq_1]
100024                   D       -       0xfffffe00083f7100  [linuxkpi_short_wq_2]
100025                   D       -       0xfffffe00083f7100  [linuxkpi_short_wq_3]
100026                   D       -       0xfffffe00083f7000  [linuxkpi_long_wq_0]
100027                   D       -       0xfffffe00083f7000  [linuxkpi_long_wq_1]
100028                   D       -       0xfffffe00083f7000  [linuxkpi_long_wq_2]
100029                   D       -       0xfffffe00083f7000  [linuxkpi_long_wq_3]
100036                   D       -       0xfffffe00083f6e00  [firmware taskq]
100040                   D       -       0xfffffe00083f6b00  [crypto_0]
100041                   D       -       0xfffffe00083f6b00  [crypto_1]
100056                   D       -       0xfffffe00083f6900  [vtnet0 rxq 0]
100057                   D       -       0xfffffe00083f6800  [vtnet0 txq 0]
100058                   D       -       0xfffffe00083f6700  [vtnet0 rxq 1]
100059                   D       -       0xfffffe00083f6600  [vtnet0 txq 1]
100061                   D       vtbslp  0xfffffe0057d7d700  [virtio_balloon]
100065                   D       -       0xffffffff827cede0  [deadlkres]
100069                   D       -       0xfffffe005857c600  [acpi_task_0]
100070                   D       -       0xfffffe005857c600  [acpi_task_1]
100071                   D       -       0xfffffe005857c600  [acpi_task_2]
100073                   D       -       0xfffffe00083f8100  [mca taskq]
100074                   D       -       0xfffffe00083f6a00  [CAM taskq]
100076                   D       -       0xfffffe00083f6300  [ipsec_offload]
db> show all locks
Process 1101 (syz-executor) thread 0xfffffe0054152780 (100555)
shared lockmgr ufs (ufs) r = 0 (0xfffffe00777e3070) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_syscalls.c:4328
Process 763 (syz-executor) thread 0xfffffe00540cb000 (100100)
exclusive sx ktrace_sx (ktrace_sx) r = 0 (0xffffffff83b50620) locked @ /syzkaller/managers/main/kernel/sys/kern/kern_ktrace.c:425
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            6        12804K            6
            linker          400         5474K          639
          tcp_hpts            7         4801K            7
         sctp_stro            3         4610K            5
            devbuf         4187         4323K         4214
         sysctloid        35221         2075K        35296
             vtbuf           24         1968K           46
              kobj          330         1320K          514
            newblk           74         1043K         1864
          vfscache            3         1025K            3
               pcb           56          695K          206
          filedesc           85          678K          494
          inodedep           15          518K          553
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          187          378K         1209
              vmem            5          272K            7
         vnet_data            2          224K            2
          acpitask            1          224K            1
            KTRACE          101          201K        32058
            acpica         1674          184K        54432
           tidhash            3          141K            3
           pagedep            9          130K          276
        tfo_ccache            1          128K            1
          IP reass            1          128K            1
            DEVFS1          109          109K          128
               sem            4          106K            4
        gtaskqueue           18           98K           18
               bus         1002           82K         5074
          mtx_pool            3           74K            3
          syncache            1           68K            1
     NFSD srvcache            3           68K            3
            module          522           66K          525
       ddb_capture            1           64K            1
           kdtrace          250           47K         1663
              umtx          368           46K          368
               shm            4           38K           10
         hostcache            1           32K            1
            DEVFS3          128           32K          138
               msg            4           30K            4
            kbdmux            6           28K            6
              temp           36           21K         2114
               LRO           20           21K           20
            ifaddr           75           21K           77
        DEVFS_RULE           56           20K           56
          routetbl          154           17K          467
         ufs_mount            4           17K            5
              proc            3           17K            3
           lltable           53           17K           57
               tty           16           16K           16
           ithread           90           15K           90
       ether_multi          180           15K          224
            bus-sc           34           15K         1650
             ifnet            8           15K            8
      eventhandler          163           14K          163
              GEOM           59           13K          483
              kenv           95           12K           95
         CAM queue            5           11K         1528
         in6_multi           75           10K           76
              rman           82           10K          447
             shmfd            4           10K           17
               rpc            8            9K            8
         bmsafemap            2            9K          463
           devstat            4            9K            4
              UART           12            9K           12
           filemon            1            8K            7
              ksem            1            8K            3
       pfs_vncache            1            8K            1
           md_disk            2            8K            4
            plimit           21            8K          624
            kqueue           90            8K         1307
     audit_evclass          240            8K          303
         taskqueue           69            8K           78
              cred           27            7K          255
            sglist            6            7K            6
           CAM DEV            3            6K          510
         pfs_nodes           22            6K           22
           pwddesc           86            6K         1128
         sctp_atcl           14            6K           58
       ufs_dirhash           24            5K           33
          pf_ifnet           11            5K           22
               UMA          269            5K          269
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
           acpisem           28            4K           28
            DEVFSP           55            4K          102
          kcovinfo           45            3K           45
          terminal           11            3K           11
             lockf           25            3K          272
           uidinfo            5            3K           15
           acpidev           20            3K           20
         proc-args           97            3K         2198
             hhook            8            3K           10
             clone            9            3K            9
            ip6ndp           14            3K           16
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
            CC Mem           16            2K          201
          sctp_ifa           15            2K           16
               tun            5            2K            5
          in_multi            7            2K           16
            Unitno           30            2K           69
           session           14            2K           57
           CAM XPT           22            2K          543
             selfd           25            2K        59242
            dirrem            6            2K          403
            ip6opt           10            2K           39
         toponodes            6            2K            6
       ipsecpolicy            2            2K            2
            crypto            6            2K           32
               msi            9            2K            9
           netlink            2            2K           96
       inpcbpolicy           34            2K          547
           softdep            1            1K            1
          indirdep            4            1K          349
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           40
      NFSD session            1            1K            1
          sctp_ifn            7            1K           16
               mld            7            1K            7
              igmp            7            1K            7
               BPF            7            1K           25
        CAM periph            4            1K          271
               osd           21            1K          217
             ipsec            3            1K            3
              pfil            6            1K            6
            isadev            6            1K            8
             mount           16            1K          877
          pci_link           10            1K           10
         sctp_atky           17            1K           63
            diradd            5            1K          420
 encap_export_host           12            1K           12
         sctp_timw            2            1K            2
             mkdir            4            1K          464
              cdev            2            1K            2
       lkpikmalloc            8            1K            9
             frag6            5            1K            6
         cryptodev            6            1K          245
      counter_rate           13            1K           13
         newdirblk            3            1K          233
    chacha20random            1            1K            1
            biobuf            1            1K            1
            select            3            1K           52
            vnodes            4            1K            6
          freefile            2            1K          313
           VN POLL            2            1K            6
              ktls            1            1K           15
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
           CAM SIM            2            1K            2
         sctp_athm           14            1K           58
            feeder            7            1K            7
           pf_osfp            2            1K            2
           tcpfunc            3            1K            3
        ip_msource            3            1K           19
        in_mfilter            4            1K           38
        loginclass            3            1K            5
            prison            6            1K            6
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
       ip_moptions            2            1K           13
               aio            4            1K           39
          pmchooks            1            1K            1
filedesc_to_leader            2            1K            4
          CAM path            4            1K         1034
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
          sctp_map            6            1K           10
          sctp_vrf            1            1K            1
         sctp_aadr            1            1K            1
       ip6_msource            1            1K            6
              vnet            1            1K            1
          sendfile            1            1K            8
               pmc            1            1K            1
           entropy            2            1K           34
          acpiintr            1            1K            1
              cpus            2            1K            2
      ip6_moptions            1            1K            8
    vnet_data_free            1            1K            1
           fadvise            1            1K            7
           Per-cpu            1            1K            1
          freework            1            1K          534
          p1003.1b            1            1K            1
        ext2_mount            0            0K            0
         ext2_node            0            0K            0
      ext2_extents            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320    1078       17004       0     254   38494208        0
           tcp_log    416   10397    4084       51034       0     254    6024096        0
              mbuf    256    8921     741       91084       0     254    2473472        0
    ertt_txseginfo     40   56779     387       64630       0     254    2286640        0
          BUF TRIE    152     263   11541        1795       0      62    1794208        0
        malloc-384    384    4164      36        4241       0      30    1612800        0
        malloc-128    128   11542      52       11608       0     126    1484032        0
       malloc-4096   4096     333       9        1086       0       2    1400832        0
        RADIX NODE    152    8775     294       37476       0      62    1378488        0
       UMA Slabs 0    112   11070      12       11070       0     126    1241184        0
      malloc-65536  65536      16       2          87       0       1    1179648        0
         sctp_asoc   2256       3     507           5       0     254    1150560        0
         malloc-64     64     405   16920       61137       0     254    1108800        0
         vmem btag     56   18989     130       18989       0     254    1070664        0
      mbuf_cluster   2048     508       0         508       0     254    1040384        0
      malloc-16384  16384      43       4         245       0       1     770048        0
         FFS inode   1168     582      27         904       0       8     711312        0
           sctp_ep   1152      11     500          53       0     254     588672        0
            socket   1024      60     448        1882       0     254     520192        0
          lkpicurr    168       2    3094           2       0      62     520128        0
        256 Bucket   2048     223      17        1766       0       8     491520        0
              pbuf   2624       0     174           0       0       2     456576        0
        sctp_raddr    736       3     514           5       0     254     380512        0
       malloc-4096   4096      85       5        1103       0       2     368640        0
         VM OBJECT    248    1329     111       16935       0      62     357120        0
            THREAD   1860     163      21         556       0       8     342240        0
             VNODE    440     621      72         946       0      30     304920        0
      malloc-32768  32768       0       8         287       0       1     262144        0
         malloc-64     64    3870     225        3889       0     254     262080        0
       malloc-2048   2048     109      11         171       0       8     245760        0
         malloc-16     16   14528     472       14801       0     254     240000        0
      malloc-32768  32768       7       0           7       0       1     229376        0
            DEVCTL   1024      32     188         157       0       0     225280        0
         MAP ENTRY     96    1926     342       55541       0     126     217728        0
        malloc-128    128    1325     194       25975       0     126     194432        0
         malloc-32     32    5367     555        5913       0     254     189504        0
         UMA Zones    768     241       3         241       0      16     187392        0
     FPU_save_area    832     165      51         771       0      16     179712        0
       FFS2 dinode    256     582     108         904       0      62     176640        0
            lkpimm     56       1    3095           1       0     254     173376        0
             unpcb    320      16     500        1235       0     254     165120        0
       malloc-1024   1024     142      18         198       0      16     163840        0
       S VFS Cache    104    1019     385        1420       0     126     146016        0
        malloc-256    256      74     496        2379       0      62     145920        0
              PROC   1376      85      14        1105       0       8     136224        0
      malloc-65536  65536       1       1           9       0       1     131072        0
      malloc-65536  65536       0       2          65       0       1     131072        0
      malloc-65536  65536       0       2         110       0       1     131072        0
      malloc-65536  65536       1       1           9       0       1     131072        0
      malloc-32768  32768       1       3          16       0       1     131072        0
      malloc-16384  16384       5       3           9       0       1     131072        0
       mbuf_packet    256      16     492        1331       0     254     130048        0
         tcp_inpcb   1304      17      79         200       0       8     125184        0
          ksiginfo    112     101     943         263       0     126     116928        0
       tcp_bbr_map    128     262     637        1192       0     126     115072        0
       malloc-2048   2048      18      38        1098       0       8     114688        0
         filedesc0   1072      86      12        1128       0       8     105056        0
        malloc-128    128     650     125        1501       0     126      99200        0
        malloc-256    256     276      99        1388       0      62      96000        0
          UMA Kegs    384     227       6         227       0      30      89472        0
        malloc-128    128     352     299        1330       0     126      83328        0
       malloc-8192   8192       8       2          17       0       1      81920        0
       malloc-8192   8192       7       3          12       0       1      81920        0
       malloc-4096   4096      14       6          79       0       2      81920        0
       malloc-2048   2048      25      15          74       0       8      81920        0
        malloc-256    256     231      84        1408       0      62      80640        0
        sctp_chunk    152       3     517           3       0     254      79040        0
        128 Bucket   1024      56      11         279       0      16      68608        0
         malloc-64     64     568     503        2159       0     254      68544        0
         malloc-64     64     648     423       16028       0     254      68544        0
        malloc-128    128     403     124        1170       0     126      67456        0
      malloc-32768  32768       0       2         120       0       1      65536        0
         64 Bucket    512      96      32        2443       0      30      65536        0
        malloc-256    256      86     169        1189       0      62      65280        0
         32 Bucket    256      79     176        1190       0      62      65280        0
         udp_inpcb    408       9     144         273       0      30      62424        0
             g_bio    408       0     150       11914       0      30      61200        0
        malloc-384    384     121      29         752       0      30      57600        0
       malloc-4096   4096      12       2          23       0       2      57344        0
        malloc-128    128      11     392         292       0     126      51584        0
           DIRHASH   1024      34      14          41       0      16      49152        0
             NAMEI   1024       1      47       15548       0      16      49152        0
      malloc-16384  16384       2       1           3       0       1      49152        0
       malloc-4096   4096       6       6         243       0       2      49152        0
       malloc-1024   1024       3      45        1590       0      16      49152        0
           VMSPACE    584      61      23        1079       0      16      49056        0
        malloc-384    384      14     106         553       0      30      46080        0
          syncache    168       0     264           3       0     254      44352        0
             Files     80     243     307        8863       0     126      44000        0
            vnpbuf   2624       0      16           2       0      16      41984        0
            pcpu-8      8    4816     304        5075       0     254      40960        0
              pipe    736      25      30         356       0      16      40480        0
            da_ccb    544       0      70        3090       0      16      38080        0
         hostcache     64       4     563           4       0     254      36288        0
         malloc-64     64      70     497         235       0     254      36288        0
         malloc-64     64     100     467         820       0     254      36288        0
         malloc-64     64      99     468       24502       0     254      36288        0
         malloc-64     64       9     558          41       0     254      36288        0
      tcp_rack_map    128       0     279         512       0     126      35712        0
        malloc-128    128      51     228         166       0     126      35712        0
        malloc-128    128      40     239        3615       0     126      35712        0
      ktls_session    256       0     135           2       0      62      34560        0
     routing nhops    256      30     105          38       0      62      34560        0
           ttyoutq    256      72      63         448       0      62      34560        0
        malloc-384    384      60      30          79       0      30      34560        0
        malloc-384    384      48      42          67       0      30      34560        0
        malloc-256    256      28     107         158       0      62      34560        0
        malloc-256    256      15     120         539       0      62      34560        0
        malloc-256    256      69      66         547       0      62      34560        0
        malloc-256    256      21     114         655       0      62      34560        0
         TURNSTILE    136     185      67         185       0      62      34272        0
             ripcb    376       9      81          67       0      30      33840        0
        SLEEPQUEUE     88     185     199         185       0     126      33792        0
      malloc-16384  16384       0       2         190       0       1      32768        0
       malloc-8192   8192       3       1          37       0       1      32768        0
       malloc-2048   2048       1      15          13       0       8      32768        0
       malloc-2048   2048       4      12          60       0       8      32768        0
       malloc-2048   2048       1      15          76       0       8      32768        0
       malloc-2048   2048       4      12         196       0       8      32768        0
       malloc-1024   1024       3      29          51       0      16      32768        0
       malloc-1024   1024       4      28          60       0      16      32768        0
       malloc-1024   1024      12      20         173       0      16      32768        0
       malloc-1024   1024       9      23          14       0      16      32768        0
        malloc-512    512       1      63         111       0      30      32768        0
        malloc-512    512       1      63          16       0      30      32768        0
        malloc-512    512       5      59          23       0      30      32768        0
        malloc-512    512       0      64          61       0      30      32768        0
        malloc-512    512      12      52          97       0      30      32768        0
        malloc-512    512       2      62          40       0      30      32768        0
           pcpu-64     64     501      11         501       0     254      32768        0
       tcp_bbr_pcb    896       3      33           7       0      16      32256        0
            ttyinq    160     135      65         840       0      62      32000        0
              PGRP    120      19     245          63       0     126      31680        0
            clpbuf   2624       0      12          72       0       4      31488        0
        sctp_laddr     48      15     573          35       0     254      28224        0
          rl_entry     48      18     570          33       0     254      28224        0
         malloc-32     32     284     598        3041       0     254      28224        0
         16 Bucket    144      62     134         372       0      62      28224        0
          4 Bucket     48      10     578          16       0     254      28224        0
               AIO    208       1     132          44       0      62      27664        0
     udplite_inpcb    408       0      63           7       0      30      25704        0
            cpuset    200      10     118         139       0      62      25600        0
       malloc-8192   8192       2       1           3       0       1      24576        0
       malloc-8192   8192       1       2          82       0       1      24576        0
       malloc-8192   8192       1       2          24       0       1      24576        0
       malloc-4096   4096       3       3          12       0       2      24576        0
               PWD     40      45     561         263       0     254      24240        0
           rtentry    168      33     111          38       0      62      24192        0
          8 Bucket     80      58     242         462       0     126      24000        0
            itimer    352       0      66           6       0      30      23232        0
        malloc-384    384      12      48          12       0      30      23040        0
        malloc-384    384       2      58         346       0      30      23040        0
         domainset     40       1     566         125       0     254      22680        0
       Mountpoints   2816       2       6          10       0       4      22528        0
            swrbuf   2624       0       8          59       0       4      20992        0
              ertt     72      16     264         200       0     126      20160        0
         malloc-32     32      87     543         115       0     254      20160        0
         malloc-32     32      82     548         521       0     254      20160        0
         malloc-32     32     107     523        1363       0     254      20160        0
         malloc-32     32      55     575        4468       0     254      20160        0
         malloc-32     32     218     412        1089       0     254      20160        0
         malloc-32     32      33     597         150       0     254      20160        0
          2 Bucket     32      77     553         500       0     254      20160        0
             KNOTE    160       3     122         119       0      62      20000        0
           cryptop    280       0      70          75       0      30      19600        0
       L VFS Cache    320       0      60          43       0      30      19200        0
            AIOLIO    272       0      70           4       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       0       1           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       0       4           6       0       2      16384        0
       malloc-4096   4096       1       3           7       0       2      16384        0
       malloc-1024   1024       4      12           4       0      16      16384        0
       malloc-1024   1024       1      15           2       0      16      16384        0
        malloc-512    512       1      31          11       0      30      16384        0
           SMR CPU     32       8     503           8       0     254      16352        0
      vtnet_tx_hdr     24       1     667       63965       0     254      16032        0
         malloc-16     16     322     678         614       0     254      16000        0
            mqueue    248       1      63           1       0      62      15872        0
   tcp_log_id_node    120       1     131           1       0     126      15840        0
              kenv    258      17      43        1065       0      30      15480        0
      tcp_rack_pcb   1088       0      14           2       0       8      15232        0
            mqnode    416       4      32           4       0      30      14976        0
        SMR SHARED     24       8     503           8       0     254      12264        0
 tcp_log_id_bucket    176       1      68           1       0      62      12144        0
         malloc-16     16      15     735          16       0     254      12000        0
         malloc-16     16      72     678         619       0     254      12000        0
         malloc-16     16      14     736        4348       0     254      12000        0
         malloc-16     16     258     492        4670       0     254      12000        0
         malloc-16     16      31     719       24957       0     254      12000        0
         malloc-16     16       7     743          16       0     254      12000        0
            splice    184       0      63           2       0      62      11592        0
             AIOCB    552       1      20          50       0      16      11592        0
        malloc-384    384       2      28           2       0      30      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        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      15      24          30       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 tags    104       0       0           0       0     126          0        0
          pf mtags    184       0       0           0       0      62          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
sctp_stream_msg_out    112       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
        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
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    152       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-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-2048   2048       0       0           0       0       8          0        0
        malloc-512    512       0       0           0       0      30          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg     88       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0
db> show all tcpcbs/bl

Crashes (43):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/24 05:34 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 22:47 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 19:57 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 19:57 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 19:02 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 19:02 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 18:07 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 18:07 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 18:07 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 18:07 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 18:07 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 18:05 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 18:04 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 18:04 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:57 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:57 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:54 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:54 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:54 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:54 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:53 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:53 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:52 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:30 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:30 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:29 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:29 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:25 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:25 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:24 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:23 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:22 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:21 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:21 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:18 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:18 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:17 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:15 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:15 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:14 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:09 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
2025/07/23 17:09 freebsd-src 863dc799f743 8e9d1dc1 console log report ci-freebsd-main panic: VOP_READDIR: eofflag not set
* Struck through repros no longer work on HEAD.