syzbot


panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE

Status: upstream: reported C repro on 2024/09/11 13:12
Reported-by: syzbot+58c918369f9dc323409d@syzkaller.appspotmail.com
First crash: 73d, last: 72d

Sample crash report:
panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:1284
cpuid = 1
time = 1726092459
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0056fe6c30
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0056fe6d90
vpanic() at vpanic+0x280/frame 0xfffffe0056fe6f50
panic() at panic+0xb5/frame 0xfffffe0056fe7010
m_copyback() at m_copyback+0xa6f/frame 0xfffffe0056fe71f0
aesni_cipher_crypt() at aesni_cipher_crypt+0xbbd/frame 0xfffffe0056fe7330
aesni_process() at aesni_process+0x227/frame 0xfffffe0056fe7370
crypto_invoke() at crypto_invoke+0x25f/frame 0xfffffe0056fe74a0
crypto_dispatch_one() at crypto_dispatch_one+0x185/frame 0xfffffe0056fe74d0
ktls_ocf_dispatch() at ktls_ocf_dispatch+0x10c/frame 0xfffffe0056fe75b0
ktls_ocf_tls_cbc_encrypt() at ktls_ocf_tls_cbc_encrypt+0xdc3/frame 0xfffffe0056fe7790
ktls_encrypt() at ktls_encrypt+0x1d5/frame 0xfffffe0056fe7b50
ktls_work_thread() at ktls_work_thread+0x805/frame 0xfffffe0056fe7ef0
fork_exit() at fork_exit+0xcc/frame 0xfffffe0056fe7f30
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0056fe7f30
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 774 tid 100119 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x23e2e77(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0xfffffe00033eee30
rdx         0xdffff7c000000000
rbx         0xffffffff8271ef40  .str.27
rsp         0xfffffe0056fe6d70
rbp         0xfffffe0056fe6d90
rsi                          0
rdi         0xffffffff82e004c0  panicstr
r8                           0
r9                  0xffffffff
r10         0x991385e345a7cfbb
r11                        0x3
r12         0xfffffe005b6eb740
r13         0xfffffffffffffffd
r14         0xffffffff8271ef40  .str.27
r15                          0
rip         0xffffffff815bb19e  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x23e2e77(%rip)
db> show proc
Process 774 (KTLS) at 0xfffffe005b6c6060:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff83928720
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff83928720 reapsubtree: 774
 sigparent: 20
 vmspace: 0xffffffff839296c0
   (map 0xffffffff839296c0)
   (map.pmap 0xffffffff83929780)
   (pmap 0xffffffff839297f0)
 threads: 3
100119                   Run     CPU 1                       [thr_0]
100120                   RunQ                                [thr_1]
100121                   D       -       0xffffffff83a90a48  [reclaim_0]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  774     0     0     0  RL      (threaded)                  [KTLS]
100119                   Run     CPU 1                       [thr_0]
100120                   RunQ                                [thr_1]
100121                   D       -       0xffffffff83a90a48  [reclaim_0]
  773   771   771     0  R       (threaded)                  syz-executor2171780
100117                   Run     CPU 0                       syz-executor2171780
100118                   RunQ                                syz-executor2171780
  771   769   771     0  Ss      pause   0xfffffe005b6e50b0  csh
  769   682   769     0  Ss      select  0xfffffe005847ad40  sshd
  748     1   748     0  Ss+     ttyin   0xfffffe005849c0b0  getty
  747     1   747     0  Ss+     ttyin   0xfffffe00596e94b0  getty
  746     1   746     0  Ss+     ttyin   0xfffffe00596bb4b0  getty
  745     1   745     0  Ss+     ttyin   0xfffffe00596e9cb0  getty
  744     1   744     0  Ss+     ttyin   0xfffffe00596bbcb0  getty
  743     1   743     0  Ss+     ttyin   0xfffffe00543544b0  getty
  742     1   742     0  Ss+     ttyin   0xfffffe0054354cb0  getty
  741     1   741     0  Ss+     ttyin   0xfffffe00543554b0  getty
  740     1   740     0  Ss+     ttyin   0xfffffe0054355cb0  getty
  738     1    18     0  S+      piperd  0xfffffe0059a16888  logger
  737   736    18     0  S+      nanslp  0xffffffff8397f3c0  sleep
  736     1    18     0  S+      wait    0xfffffe0007be85c0  sh
  686     1   686     0  Ss      nanslp  0xffffffff8397f3c1  cron
  682     1   682     0  Ss      select  0xfffffe005847b940  sshd
  495     1   495     0  Ss      select  0xfffffe005870fdc0  syslogd
  424     1   424     0  Ss      select  0xfffffe0058710240  devd
  423     1   423    65  Ss      select  0xfffffe00587102c0  dhclient
  338     1   338     0  Ss      select  0xfffffe0058711140  dhclient
  335     1   335     0  Ss      select  0xfffffe0058710a40  dhclient
   17     0     0     0  DL      syncer  0xffffffff83a9cbe0  [syncer]
   16     0     0     0  DL      vlruwt  0xfffffe0007a27060  [vnlru]
   15     0     0     0  DL      (threaded)                  [bufdaemon]
100081                   D       psleep  0xffffffff83a9b1a0  [bufdaemon]
100084                   D       -       0xffffffff82e02140  [bufspacedaemon-0]
100095                   D       sdflush 0xfffffe00580114e8  [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83ae68a0  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100079                   D       psleep  0xffffffff83acc838  [dom0]
100082                   D       launds  0xffffffff83acc844  [laundry: dom0]
100083                   D       umarcl  0xffffffff81d6d580  [uma]
    7     0     0     0  DL      -       0xffffffff836fcb70  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff845be9d0  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff8439ba00  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100045                   D       -       0xffffffff836c7340  [doneq0]
100046                   D       -       0xffffffff836c72c0  [async]
100077                   D       -       0xffffffff836c7140  [scanner]
    3     0     0     0  DL      (threaded)                  [crypto]
100042                   D       crypto_ 0xffffffff83ac8020  [crypto]
100043                   D       crypto_ 0xfffffe0057f74030  [crypto returns 0]
100044                   D       crypto_ 0xfffffe0057f74080  [crypto returns 1]
   14     0     0     0  DL      seqstat 0xfffffe00085f6488  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100036                   D       -       0xffffffff83927d40  [g_event]
100037                   D       -       0xffffffff83927d60  [g_up]
100038                   D       -       0xffffffff83927d80  [g_down]
    2     0     0     0  WL      (threaded)                  [clock]
100030                   I                                   [clock (0)]
100031                   I                                   [clock (1)]
   12     0     0     0  WL      (threaded)                  [intr]
100012                   I                                   [swi6: task queue]
100013                   I                                   [swi6: Giant taskq]
100015                   I                                   [swi5: fast taskq]
100032                   I                                   [swi1: netisr 0]
100033                   I                                   [swi1: hpts]
100034                   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                                   [irq33: virtio_pci2]
100061                   I                                   [irq34: virtio_pci2]
100062                   I                                   [irq35: virtio_pci2]
100064                   I                                   [irq1: atkbd0]
100065                   I                                   [irq12: psm0]
100066                   I                                   [swi0: uart uart++]
100070                   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    0xfffffe0007a07040  [init]
   10     0     0     0  DL      audit_w 0xffffffff83ac8a80  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       parked  0xffffffff84c18ff0  [swapper]
100005                   D       -       0xfffffe00085fba00  [softirq_0]
100006                   D       -       0xfffffe00085fb800  [softirq_1]
100007                   D       -       0xfffffe00085fb600  [if_io_tqg_0]
100008                   D       -       0xfffffe00085fb400  [if_io_tqg_1]
100009                   D       -       0xfffffe00085fb200  [if_config_tqg_0]
100010                   D       -       0xfffffe00085fb000  [pci_hp taskq]
100011                   D       -       0xfffffe00085fad00  [kqueue_ctx taskq]
100014                   D       -       0xfffffe00085fa700  [thread taskq]
100016                   D       -       0xfffffe00085fa300  [aiod_kick taskq]
100017                   D       -       0xfffffe00085fa100  [deferred_unmount ta]
100018                   D       -       0xfffffe00085f9e00  [inm_free taskq]
100019                   D       -       0xfffffe00085f9c00  [in6m_free taskq]
100020                   D       -       0xfffffe00085f9a00  [linuxkpi_irq_wq]
100021                   D       -       0xfffffe00085f9800  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe00085f9800  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe00085f9800  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe00085f9800  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe00085f9300  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe00085f9300  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe00085f9300  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe00085f9300  [linuxkpi_long_wq_3]
100035                   D       -       0xfffffe00085f8400  [firmware taskq]
100040                   D       -       0xfffffe0057f78300  [crypto_0]
100041                   D       -       0xfffffe0057f78300  [crypto_1]
100056                   D       -       0xfffffe00085fc300  [vtnet0 rxq 0]
100057                   D       -       0xfffffe00085fc200  [vtnet0 txq 0]
100058                   D       -       0xfffffe005836c500  [vtnet0 rxq 1]
100059                   D       -       0xfffffe005836c400  [vtnet0 txq 1]
100063                   D       vtbslp  0xfffffe0058350600  [virtio_balloon]
100067                   D       -       0xffffffff82724181  [deadlkres]
100071                   D       -       0xfffffe00586fe300  [acpi_task_0]
100072                   D       -       0xfffffe00586fe300  [acpi_task_1]
100073                   D       -       0xfffffe00586fe300  [acpi_task_2]
100075                   D       -       0xfffffe00085fc100  [mca taskq]
100076                   D       -       0xfffffe0057f77b00  [CAM taskq]
100078                   D       -       0xfffffe0057f78a00  [ipsec_offload]
db> show all locks
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            6        12804K            6
            linker          375         5011K          485
          tcp_hpts            7         4801K            7
            devbuf         4192         4324K         4217
         sysctloid        35243         2077K        35314
             vtbuf           24         1968K           46
            newblk         1638         1434K         1711
              kobj          329         1316K          493
          vfscache            3         1025K            3
               pcb           23          669K           42
          inodedep           50          531K           71
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
         vnet_data            2          224K            2
          acpitask            1          224K            1
            KTRACE          100          200K          100
           subproc          108          190K          842
            acpica         1674          184K        61482
              vmem            5          144K            7
           tidhash            3          141K            3
           pagedep           14          132K           18
        tfo_ccache            1          128K            1
          IP reass            1          128K            1
               sem            4          106K            4
            DEVFS1          105          105K          114
        gtaskqueue           18           98K           18
               bus          995           82K         5165
          mtx_pool            2           72K            2
          syncache            1           68K            1
     NFSD srvcache            3           68K            3
            module          518           65K          518
       ddb_capture            1           64K            1
              temp           18           37K         1566
           kdtrace          162           33K          897
         hostcache            1           32K            1
               shm            1           32K            1
              umtx          256           32K          256
            DEVFS3          124           31K          134
               msg            4           30K            4
            kbdmux            6           28K            6
        DEVFS_RULE           56           20K           56
               BPF           10           18K           10
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           97           16K           97
            bus-sc           34           15K         1687
      eventhandler          163           14K          163
              kenv           95           12K           95
            ifaddr           30           12K           32
              GEOM           61           11K          477
          routetbl           50           11K          176
              rman           86           11K          451
         CAM queue            5           11K         1528
         bmsafemap            3            9K           39
               rpc            4            9K            4
           devstat            4            9K            4
              UART           12            9K           12
              ksem            1            8K            1
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
     audit_evclass          238            8K          300
         taskqueue           66            7K           66
            sglist            6            7K            6
           CAM DEV            3            6K          510
              cred           23            6K          274
         pfs_nodes           22            6K           22
       ufs_dirhash           24            5K           24
               UMA          271            5K          271
            dirrem           17            5K           28
            plimit           17            5K          322
             ifnet            3            5K            3
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
          filedesc            1            4K            1
             evdev            4            4K            4
           acpisem           28            4K           28
       ether_multi           40            4K           50
            diradd           25            4K           36
           lltable           11            4K           11
          pf_ifnet            5            3K            6
         in6_multi           25            3K           25
          terminal           11            3K           11
            kqueue           41            3K          777
           pwddesc           41            3K          775
           session           20            3K           31
             hhook            8            3K           10
             clone            9            3K            9
           uidinfo            3            3K            8
            crypto            8            3K            8
         proc-args           62            3K         1696
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
             selfd           27            2K        24612
            Unitno           28            2K           42
           CAM XPT           22            2K          543
             lockf           15            2K           22
               msi           12            2K           12
         toponodes            6            2K            6
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
           netlink            2            2K           13
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
            CC Mem            4            1K            8
       vnodemarker            2            1K            8
      NFSD session            1            1K            1
            select            7            1K           29
        CAM periph            4            1K          271
             ipsec            3            1K            3
          indirdep            3            1K            3
             nhops            6            1K            6
              pfil            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
          sctp_ifa            5            1K            6
            ip6ndp            4            1K            5
 encap_export_host           12            1K           12
         newdirblk            4            1K            8
             mkdir            4            1K           16
          in_multi            2            1K            4
              cdev            2            1K            2
       lkpikmalloc            8            1K            9
               osd            9            1K           21
    chacha20random            1            1K            1
            biobuf            1            1K            1
       inpcbpolicy           11            1K          140
              ktls            3            1K            5
          sctp_ifn            2            1K            6
               mld            2            1K            2
              igmp            2            1K            2
            vnodes            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
            DEVFSP            4            1K            9
             DEVFS            9            1K           10
           CAM SIM            2            1K            2
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            7
            prison            6            1K            6
         cryptodev            2            1K           49
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
          ktls_ocf            1            1K            1
          procdesc            1            1K            6
          pmchooks            1            1K            1
          CAM path            4            1K         1034
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
            soname            4            1K         3329
          filecaps            4            1K           66
          sctp_vrf            1            1K            1
              vnet            1            1K            1
               pmc            1            1K            1
           entropy            2            1K           35
          acpiintr            1            1K            1
              cpus            2            1K            2
        aesni_data            1            1K            1
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          freework            1            1K           26
          p1003.1b            1            1K            1
      tcp_pcm_rack            0            0K            0
       tcp_do_rack            0            0K            0
      tcp_fsb_rack            0            0K            0
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
     pf_krule_item            0            0K            0
           pf_temp            0            0K            0
            mqdata            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K            0
         sctp_iter            0            0K            4
         sctp_mvrf            0            0K            0
         sctp_timw            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_athm            0            0K            0
         sctp_atky            0            0K            0
         sctp_atcl            0            0K            0
         sctp_a_it            0            0K            4
         sctp_aadr            0            0K            0
         sctp_stro            0            0K            0
         sctp_stri            0            0K            0
          sctp_map            0            0K            0
           filemon            0            0K            0
            ipcomp            0            0K            0
               esp            0            0K            0
                ah            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
               ixl            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
              iavf            0            0K            0
             axgbe            0            0K            0
       fpukern_ctx            0            0K            0
          xen_intr            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            bounce            0            0K            0
            busdma            0            0K            0
            qpidrv            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
     vm_fictitious            0            0K            0
           UMAHash            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K           15
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            2
           jsegdep            0            0K            0
              jseg            0            0K            0
         jfreefrag            0            0K            0
          jfreeblk            0            0K            0
           jnewblk            0            0K            0
            jmvref            0            0K            0
           jremref            0            0K            0
           jaddref            0            0K            0
           freedep            0            0K            0
          freefile            0            0K            9
          freeblks            0            0K           25
          freefrag            0            0K           62
        allocindir            0            0K            0
       allocdirect            0            0K            0
          ufs_trim            0            0K            0
           mactemp            0            0K            0
     audit_trigger            0            0K            0
 audit_pipe_presel            0            0K            0
     audit_pipeent            0            0K            0
        audit_pipe            0            0K            0
      audit_evname            0            0K            0
         audit_bsm            0            0K            0
      audit_gidset            0            0K            0
        audit_text            0            0K            0
        audit_path            0            0K            0
        audit_data            0            0K            0
        audit_cred            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
      MLX5E_TLS_RX            0            0K            0
        MLX5EEPROM            0            0K            0
         MLX5E_TLS            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
            MLX5EN            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
          MLX5DUMP            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
       simple_attr            0            0K            0
          seq_file            0            0K            0
           lkpiskb            0            0K            0
             radix            0            0K            0
               idr            0            0K            0
          lkpindev            0            0K            0
           lkpimhi            0            0K            0
            lkpifw            0            0K            0
         lkpi80211            0            0K            0
               NLM            0            0K            0
    ipsec-spdcache            0            0K            0
         ipsec-reg            0            0K            0
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              ipid            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       23412       0     254   38494208        0
              mbuf    256    8579    1083       30295       0     254    2473472        0
          BUF TRIE    144     279   11509         884       0      62    1697472        0
        malloc-384    384    4170      30        4171       0      30    1612800        0
        malloc-128    128   11880     117       12251       0     126    1535616        0
       malloc-4096   4096     337       1         506       0       2    1384448        0
       UMA Slabs 0    112   10841      25       10841       0     126    1216992        0
      mbuf_cluster   2048     508       0         508       0     254    1040384        0
         vmem btag     56   15518      73       15518       0     254     873096        0
      malloc-65536  65536      11       1          14       0       1     786432        0
         FFS inode   1168     515      24         525       0       8     629552        0
        RADIX NODE    144    3806     193       23123       0      62     575856        0
        malloc-256    256    2002      53        3310       0      62     526080        0
            socket   1024      19     489        1315       0     254     520192        0
          lkpicurr    168       2    3094           2       0      62     520128        0
              pbuf   2624       0     198           0       0       2     519552        0
        256 Bucket   2048     122      22         989       0       8     294912        0
         malloc-64     64    4346     253        5325       0     254     294336        0
             VNODE    440     545      58         557       0      30     265320        0
      malloc-65536  65536       4       0           4       0       1     262144        0
         VM OBJECT    264     919      71       12697       0      30     261360        0
         malloc-16     16   14770     230       17768       0     254     240000        0
            THREAD   1824     120       8         121       0       8     233472        0
      malloc-32768  32768       6       1         126       0       1     229376        0
       malloc-2048   2048     106       6         119       0       8     229376        0
       malloc-2048   2048       3     109        1075       0       8     229376        0
            DEVCTL   1024       0     220         123       0       0     225280        0
      malloc-65536  65536       0       3         118       0       1     196608        0
       malloc-4096   4096      45       3        1529       0       2     196608        0
         UMA Zones    768     243       1         243       0      16     187392        0
         malloc-32     32    5388     282        6233       0     254     181440        0
        malloc-128    128    1238     157       28749       0     126     178560        0
            lkpimm     56       1    3095           1       0     254     173376        0
       FFS2 dinode    256     515      55         524       0      62     145920        0
      malloc-65536  65536       0       2          46       0       1     131072        0
       malloc-1024   1024     122       6         131       0      16     131072        0
             unpcb    256       7     503        1158       0     254     130560        0
       mbuf_packet    256       0     508         117       0     254     130048        0
       S VFS Cache    104     982     188        1023       0     126     121680        0
         MAP ENTRY     96     875     385       39337       0     126     120960        0
     FPU_save_area    832     122      22         135       0      16     119808        0
          ksiginfo    112      39    1005          54       0     126     116928        0
        malloc-128    128     540     235        3833       0     126      99200        0
              PROC   1376      40      26         774       0       8      90816        0
          UMA Kegs    384     228       5         228       0      30      89472        0
       malloc-8192   8192       8       2          28       0       1      81920        0
       malloc-4096   4096      16       2          34       0       2      73728        0
        128 Bucket   1024      43      24         238       0      16      68608        0
         malloc-64     64     539     532        1685       0     254      68544        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
       malloc-8192   8192       7       1         108       0       1      65536        0
             g_bio    408       0     150        4978       0      30      61200        0
         filedesc0   1072      41      15         775       0       8      60032        0
         malloc-64     64     332     487         356       0     254      52416        0
        malloc-128    128     266     137         770       0     126      51584        0
         32 Bucket    256      56     139        2005       0      62      49920        0
           DIRHASH   1024      35      13          35       0      16      49152        0
             NAMEI   1024       0      48       12094       0      16      49152        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-1024   1024       8      40         558       0      16      49152        0
          syncache    168       0     264           5       0     254      44352        0
         udp_inpcb    416       6      84         128       0      30      37440        0
            pcpu-8      8    4285     323        4313       0     254      36864        0
         64 Bucket    512      62      10        1175       0      30      36864        0
         malloc-64     64      43     524         271       0     254      36288        0
         malloc-64     64      52     515       38793       0     254      36288        0
         malloc-64     64      48     519        1369       0     254      36288        0
         malloc-64     64      32     535          68       0     254      36288        0
         malloc-64     64      49     518         806       0     254      36288        0
        malloc-128    128       6     273         131       0     126      35712        0
        malloc-128    128     104     175         623       0     126      35712        0
        malloc-128    128      70     209         155       0     126      35712        0
        malloc-128    128      78     201          79       0     126      35712        0
     routing nhops    256      10     125          17       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-384    384      67      23         389       0      30      34560        0
        malloc-384    384      51      39          73       0      30      34560        0
        malloc-256    256       3     132          32       0      62      34560        0
        malloc-256    256      26     109         329       0      62      34560        0
        malloc-256    256      48      87         181       0      62      34560        0
        malloc-256    256      68      67         656       0      62      34560        0
        malloc-256    256      22     113          23       0      62      34560        0
        malloc-256    256      47      88          99       0      62      34560        0
        malloc-256    256      28     107         330       0      62      34560        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0          12       0       1      32768        0
      malloc-16384  16384       0       2         160       0       1      32768        0
      malloc-16384  16384       2       0           2       0       1      32768        0
       malloc-2048   2048       6      10          15       0       8      32768        0
       malloc-2048   2048       7       9          23       0       8      32768        0
       malloc-2048   2048       3      13          27       0       8      32768        0
       malloc-1024   1024      11      21          15       0      16      32768        0
       malloc-1024   1024      12      20          16       0      16      32768        0
       malloc-1024   1024       5      27         189       0      16      32768        0
       malloc-1024   1024      11      21          15       0      16      32768        0
       malloc-1024   1024       1      31         853       0      16      32768        0
        malloc-512    512       1      63         111       0      30      32768        0
        malloc-512    512       1      63          11       0      30      32768        0
        malloc-512    512       8      56           8       0      30      32768        0
        malloc-512    512       0      64           9       0      30      32768        0
           pcpu-64     64     492      20         492       0     254      32768        0
    ertt_txseginfo     40       1     807         526       0     254      32320        0
            ttyinq    160     135      65         300       0      62      32000        0
              PGRP    120      20     244          31       0     126      31680        0
            clpbuf   2624       0      12          69       0       4      31488        0
           VMSPACE    616      23      25         758       0      16      29568        0
        sctp_laddr     48       0     588           4       0     254      28224        0
         malloc-32     32     267     615         478       0     254      28224        0
         16 Bucket    144      45     151         313       0      62      28224        0
          4 Bucket     48       6     582          13       0     254      28224        0
            da_ccb    544       0      49        1446       0      16      26656        0
         TURNSTILE    136     129      60         129       0      62      25704        0
            cpuset    200       8     120           8       0      62      25600        0
       malloc-8192   8192       2       1           4       0       1      24576        0
       malloc-8192   8192       3       0          29       0       1      24576        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-4096   4096       5       1           7       0       2      24576        0
               PWD     40      10     596          99       0     254      24240        0
           rtentry    168      13     131          17       0      62      24192        0
              pipe    728       7      26         282       0      16      24024        0
             Files     80      72     228        6516       0     126      24000        0
          8 Bucket     80      50     250         339       0     126      24000        0
         tcp_inpcb   1320       4      14           8       0       8      23760        0
             ripcb    384       1      59           4       0      30      23040        0
        malloc-384    384      15      45          16       0      30      23040        0
        malloc-384    384      32      28          46       0      30      23040        0
        malloc-384    384       2      58           2       0      30      23040        0
        SLEEPQUEUE     88     129     127         129       0     126      22528        0
         hostcache     64       1     314           1       0     254      20160        0
   udp_inpcb ports     32       3     627          40       0     254      20160        0
              ertt     72       4     276           8       0     126      20160        0
         malloc-32     32     116     514         145       0     254      20160        0
         malloc-32     32      43     587          49       0     254      20160        0
         malloc-32     32      46     584          76       0     254      20160        0
         malloc-32     32      71     559        3214       0     254      20160        0
         malloc-32     32       6     624        1051       0     254      20160        0
          2 Bucket     32      46     584         303       0     254      20160        0
             KNOTE    160       0     125           8       0      62      20000        0
      ktls_session    256       1      74           1       0      62      19200        0
              vmem   1856       2       7           2       0       8      16704        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       0       1           1       0       1      16384        0
       malloc-4096   4096       2       2           3       0       2      16384        0
       malloc-2048   2048       1       7           1       0       8      16384        0
       malloc-2048   2048       2       6           2       0       8      16384        0
       malloc-2048   2048       3       5         194       0       8      16384        0
       malloc-1024   1024       1      15           1       0      16      16384        0
        malloc-512    512       3      29           3       0      30      16384        0
        malloc-512    512       6      26          64       0      30      16384        0
        malloc-512    512       3      29           7       0      30      16384        0
           SMR CPU     32       8     503           8       0     254      16352        0
              kenv    258      17      43        1069       0      30      15480        0
            mqnode    416       3      33           3       0      30      14976        0
        SMR SHARED     24       8     503           8       0     254      12264        0
   tcp_inpcb ports     32       2     376           2       0     254      12096        0
         malloc-32     32       9     369         501       0     254      12096        0
         malloc-16     16      22     728        1222       0     254      12000        0
         malloc-16     16      43     707         227       0     254      12000        0
         malloc-16     16      13     737         134       0     254      12000        0
         malloc-16     16      17     733          32       0     254      12000        0
         malloc-16     16      32     718          47       0     254      12000        0
         malloc-16     16     279     471       28312       0     254      12000        0
         malloc-16     16      10     740          58       0     254      12000        0
        malloc-384    384       6      24           6       0      30      11520        0
       Mountpoints   2816       2       2           2       0       4      11264        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       1       1           1       0       2       8192        0
       malloc-4096   4096       1       1           1       0       2       8192        0
      vtnet_tx_hdr     24       0     334        5703       0     254       8016        0
           pcpu-16     16       4     252           4       0     254       4096        0
       UMA Slabs 1    176       8      14           8       0      62       3872        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
       FFS1 dinode    128       0       0           0       0     126          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       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    368       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags    184       0       0           0       0      62          0        0
      tcp_rack_pcb   1152       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
           sctp_ep   1152       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
           tcp_log    416       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
udplite_inpcb ports     32       0       0           0       0     254          0        0
     udplite_inpcb    416       0       0           0       0      30          0        0
       ripcb ports     32       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
            AIOLIO    272       0       0           0       0      30          0        0
             AIOCB    552       0       0           0       0      16          0        0
               AIO    208       0       0           0       0      62          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
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
           cryptop    280       0       0           0       0      30          0        0
  linux_dma_object     32       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    104       0       0           0       0     126          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
            vnpbuf   2624       0       0           0       0      16          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    144       0       0           0       0      62          0        0
          rl_entry     48       0       0           0       0     254          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
        malloc-512    512       0       0           0       0      30          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    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (40):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/09/11 22:08 freebsd-src db11a048282d ede7a22c console log report syz / log C ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/12 00:03 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 16:09 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 16:08 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 16:07 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 16:06 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 16:05 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 16:04 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 16:03 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 16:03 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 16:00 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 15:56 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 15:35 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 15:34 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 15:25 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 15:25 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 15:22 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 15:18 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 15:18 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 15:05 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 15:05 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 14:14 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 14:13 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:57 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:57 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:41 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:41 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:40 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:39 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:18 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:18 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:14 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:14 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:13 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:13 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:12 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:12 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:12 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:12 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
2024/09/11 13:11 freebsd-src db11a048282d ede7a22c console log report ci-freebsd-main panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:LINE
* Struck through repros no longer work on HEAD.