syzbot


panic: lock (sleep mutex) sctp-inp not locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:LINE

Status: upstream: reported on 2024/03/15 20:07
Reported-by: syzbot+0189280ed834f1650c42@syzkaller.appspotmail.com
First crash: 66d, last: 63d

Sample crash report:
panic: lock (sleep mutex) sctp-inp not locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:4433
cpuid = 1
time = 1710780870
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe006a5b1450
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe006a5b15b0
vpanic() at vpanic+0x26a/frame 0xfffffe006a5b1770
panic() at panic+0xb5/frame 0xfffffe006a5b1830
witness_unlock() at witness_unlock+0x4ed/frame 0xfffffe006a5b18b0
__mtx_unlock_flags() at __mtx_unlock_flags+0xec/frame 0xfffffe006a5b1980
sctp_aloc_assoc_connected() at sctp_aloc_assoc_connected+0x223/frame 0xfffffe006a5b19f0
sctp6_connect() at sctp6_connect+0x961/frame 0xfffffe006a5b1b90
soconnectat() at soconnectat+0x1c8/frame 0xfffffe006a5b1bf0
kern_connectat() at kern_connectat+0x2b2/frame 0xfffffe006a5b1cd0
sys_connect() at sys_connect+0xfe/frame 0xfffffe006a5b1d10
ia32_syscall() at ia32_syscall+0x466/frame 0xfffffe006a5b1f30
int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0xdfffcf9c
KDB: enter: panic
[ thread pid 4107 tid 103273 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x2191ce7(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                           0
rax                       0x12
rcx         0xfffffe0073e00000
rdx                    0x3ffff
rbx         0xffffffff82702500  .str.27
rsp         0xfffffe006a5b1590
rbp         0xfffffe006a5b15b0
rsi                    0x40001
rdi         0xffffffff815e2839  printf+0x149
r8                           0
r9                  0xffffffff
r10                     0xffff  _binary_elf_vdso_so_1_size+0xf9ef
r11                        0x6
r12         0xfffffe0073cb4000
r13         0xfffffffffffffffd
r14         0xffffffff82702500  .str.27
r15                          0
rip         0xffffffff815cf32e  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x2191ce7(%rip)
db> show proc
Process 4107 (syz-executor.0) at 0xfffffe006d1e4040:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 3284 at 0xfffffe006d1e3580
 ABI: FreeBSD ELF32
 flag: 0x10080480  flag2: 0x40000
 arguments: /root/syz-executor.0 exec
 reaper: 0xfffffe00541de040 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe00541f2000
   (map 0xfffffe00541f2000)
   (map.pmap 0xfffffe00541f20c0)
   (pmap 0xfffffe00541f2130)
 threads: 3
100399                   s                                   syz-executor.0
103273                   Run     CPU 1                       syz-executor.0
103274                   RunQ                                syz-executor.0
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 4109  2582  2582     0  R       (threaded)                  syz-executor.3
100130                   RunQ                                syz-executor.3
103276                   S       connec  0xfffffe006d1bb85a  syz-executor.3
103277                   S       uwait   0xfffffe0057677c00  syz-executor.3
 4107  3284  3284     0  T       (threaded)                  syz-executor.0
100399                   s                                   syz-executor.0
103273                   Run     CPU 1                       syz-executor.0
103274                   RunQ                                syz-executor.0
 4073  4054  4073     0  Ss      select  0xfffffe00707801c0  dhclient
 4064     1  4064     0  Ss      select  0xfffffe0073d20340  dhclient
 4054  4047   424    65  S       select  0xfffffe0073d22d40  dhclient
 4047   424   424     0  SW      wait    0xfffffe006cdad5c0  sh
 4020  4000  4000     0  D       ifnet_d 0xffffffff838602c0  ifconfig
 4000   768  4000     0  SWs     wait    0xfffffe00571bbae0  syz-executor.1
 3958  3957  3957     0  D       ifnet_d 0xffffffff838602c0  ifconfig
 3957   768  3957     0  SWs     wait    0xfffffe006d1e4b00  syz-executor.2
 3955     1  2582     0  S       uwait   0xfffffe0057674100  syz-executor.3
 3954     1  2582     0  S       uwait   0xfffffe0057aa4d80  syz-executor.3
 3527     1  3527    65  Ss      select  0xfffffe0073d615c0  dhclient
 3419     1  3416     0  D       ifnet_d 0xffffffff838602c0  ifconfig
 3411     1  3396     0  D       tun_con 0xfffffe0057bfa528  ifconfig
 3357     1   798     0  T       (threaded)                  syz-executor.2
102435                   s                                   syz-executor.2
102560                   RunQ                                syz-executor.2
 3308     1  3308     0  Ss      select  0xfffffe007074ac40  dhclient
 3305     1  3305     0  Ss      select  0xfffffe0073d22740  dhclient
 3284   768  3284     0  Ss      nanslp  0xffffffff83742400  syz-executor.0
 2582   768  2582     0  Rs                                  syz-executor.3
 2282     0     0     0  DL      -       0xffffffff83852240  [soaiod4]
 2281     0     0     0  DL      -       0xffffffff83852240  [soaiod3]
 2280     0     0     0  DL      -       0xffffffff83852240  [soaiod2]
 2279     0     0     0  DL      -       0xffffffff83852240  [soaiod1]
 1031     0     0     0  DL      aiordy  0xfffffe006cdaa000  [aiod4]
 1030     0     0     0  DL      aiordy  0xfffffe0057be7ae0  [aiod3]
 1029     0     0     0  DL      aiordy  0xfffffe006cc5cac0  [aiod2]
 1028     0     0     0  DL      aiordy  0xfffffe0073cacae0  [aiod1]
  768   766   766     0  S       (threaded)                  syz-fuzzer
100107                   S       uwait   0xfffffe0057675100  syz-fuzzer
100112                   S       uwait   0xfffffe0057aa5d80  syz-fuzzer
100113                   S       uwait   0xfffffe0057aa5e80  syz-fuzzer
100114                   S       uwait   0xfffffe0057aa6000  syz-fuzzer
100115                   S       uwait   0xfffffe0057aa5080  syz-fuzzer
100116                   S       uwait   0xfffffe0057675200  syz-fuzzer
100117                   S       wait    0xfffffe006cc5c560  syz-fuzzer
100118                   S       kqread  0xfffffe0058755900  syz-fuzzer
100125                   S       wait    0xfffffe006cc5c560  syz-fuzzer
100126                   S       wait    0xfffffe006cc5c560  syz-fuzzer
100131                   S       uwait   0xfffffe0057675600  syz-fuzzer
100132                   S       uwait   0xfffffe0057675700  syz-fuzzer
100137                   S       wait    0xfffffe006cc5c560  syz-fuzzer
  766   764   766     0  SWs     pause   0xfffffe006cc5f670  csh
  764   682   764     0  Ss      select  0xfffffe0007984640  sshd
  748     1   748     0  Ss+     ttyin   0xfffffe00576934b0  getty
  747     1   747     0  Ss+     ttyin   0xfffffe0057bfe8b0  getty
  746     1   746     0  Ss+     ttyin   0xfffffe0057bfecb0  getty
  745     1   745     0  Ss+     ttyin   0xfffffe0057bff0b0  getty
  744     1   744     0  Ss+     ttyin   0xfffffe0057bff4b0  getty
  743     1   743     0  Ss+     ttyin   0xfffffe0057bff8b0  getty
  742     1   742     0  Ss+     ttyin   0xfffffe0057bffcb0  getty
  741     1   741     0  Ss+     ttyin   0xfffffe0007c000b0  getty
  740     1   740     0  Ss+     ttyin   0xfffffe0007c004b0  getty
  686     1   686     0  SWs     nanslp  0xffffffff83742400  cron
  682     1   682     0  Ss      select  0xfffffe006cd55440  sshd
  495     1   495     0  Ss      select  0xfffffe005874f0c0  syslogd
  424     1   424     0  SWs     wait    0xfffffe0057be8b00  devd
  423     1   423    65  Ss      select  0xfffffe005874eec0  dhclient
  338     1   338     0  Ss      select  0xfffffe005874f140  dhclient
  335     1   335     0  Ss      select  0xfffffe00079845c0  dhclient
   17     0     0     0  DL      syncer  0xffffffff8385fb20  [syncer]
   16     0     0     0  DL      vlruwt  0xfffffe00571bb020  [vnlru]
   15     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff8385e100  [bufdaemon]
100082                   D       -       0xffffffff82c0a140  [bufspacedaemon-0]
100092                   D       sdflush 0xfffffe005406e0e8  [/ worker]
    9     0     0     0  RL                                  [vmdaemon]
    8     0     0     0  RL      (threaded)                  [pagedaemon]
100077                   Run     CPU 0                       [dom0]
100080                   D       laundp  0xffffffff82707740  [laundry: dom0]
100081                   RunQ                                [uma]
    7     0     0     0  RL                                  [rand_harvestq]
    6     0     0     0  RL                                  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff840995c0  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100044                   D       -       0xffffffff8348a340  [doneq0]
100045                   D       -       0xffffffff8348a2c0  [async]
100076                   D       -       0xffffffff8348a140  [scanner]
    3     0     0     0  DL      (threaded)                  [crypto]
100041                   D       crypto_ 0xffffffff8388aca0  [crypto]
100042                   D       crypto_ 0xfffffe005710fe30  [crypto returns 0]
100043                   D       crypto_ 0xfffffe005710fe80  [crypto returns 1]
   14     0     0     0  DL      seqstat 0xfffffe00085fc488  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100035                   D       -       0xffffffff836ead80  [g_event]
100036                   D       -       0xffffffff836eada0  [g_up]
100037                   D       -       0xffffffff836eadc0  [g_down]
    2     0     0     0  WL      (threaded)                  [clock]
100029                   I                                   [clock (0)]
100030                   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]
100031                   I                                   [swi1: netisr 0]
100032                   I                                   [swi1: hpts]
100033                   I                                   [swi1: hpts]
100046                   I                                   [irq24: virtio_pci0]
100047                   I                                   [irq25: virtio_pci0]
100048                   I                                   [irq26: virtio_pci0]
100049                   I                                   [irq27: virtio_pci0]
100050                   I                                   [irq28: virtio_pci1]
100051                   I                                   [irq29: virtio_pci1]
100052                   I                                   [irq30: virtio_pci1]
100053                   I                                   [irq31: virtio_pci1]
100054                   I                                   [irq32: virtio_pci1]
100059                   I                                   [irq33: virtio_pci2]
100060                   I                                   [irq34: virtio_pci2]
100061                   I                                   [irq35: virtio_pci2]
100063                   I                                   [irq1: atkbd0]
100064                   I                                   [irq12: psm0]
100065                   I                                   [swi0: uart uart++]
100069                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe00541de040  [init]
   10     0     0     0  DL      audit_w 0xffffffff8388b700  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff836eb760  [swapper]
100005                   D       -       0xfffffe005420e000  [softirq_0]
100006                   D       -       0xfffffe005420de00  [softirq_1]
100007                   D       -       0xfffffe005420dd00  [if_io_tqg_0]
100008                   D       -       0xfffffe005420dc00  [if_io_tqg_1]
100009                   D       -       0xfffffe005420db00  [if_config_tqg_0]
100010                   D       -       0xfffffe0007968200  [pci_hp taskq]
100011                   D       -       0xfffffe0007968100  [kqueue_ctx taskq]
100014                   D       -       0xfffffe0007967d00  [thread taskq]
100016                   D       -       0xfffffe0007967b00  [aiod_kick taskq]
100017                   D       -       0xfffffe0007967a00  [deferred_unmount ta]
100018                   D       -       0xfffffe0007967900  [inm_free taskq]
100019                   D       -       0xfffffe0007967800  [in6m_free taskq]
100020                   D       -       0xfffffe0007967700  [linuxkpi_irq_wq]
100021                   D       -       0xfffffe0007967600  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0007967600  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0007967600  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0007967600  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0007967500  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0007967500  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0007967500  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0007967500  [linuxkpi_long_wq_3]
100034                   D       -       0xfffffe0007967200  [firmware taskq]
100039                   D       -       0xfffffe0007967000  [crypto_0]
100040                   D       -       0xfffffe0007967000  [crypto_1]
100055                   D       -       0xfffffe0007966d00  [vtnet0 rxq 0]
100056                   D       -       0xfffffe0007966c00  [vtnet0 txq 0]
100057                   D       -       0xfffffe0007966b00  [vtnet0 rxq 1]
100058                   D       -       0xfffffe0007966a00  [vtnet0 txq 1]
100062                   D       vtbslp  0xfffffe0007985b00  [virtio_balloon]
100066                   D       -       0xffffffff82707740  [deadlkres]
100070                   D       -       0xfffffe0057b2aa00  [acpi_task_0]
100071                   D       -       0xfffffe0057b2aa00  [acpi_task_1]
100072                   D       -       0xfffffe0057b2aa00  [acpi_task_2]
100074                   D       -       0xfffffe0007968700  [mca taskq]
100075                   D       -       0xfffffe0007966e00  [CAM taskq]
db> show all locks
Process 4107 (syz-executor.0) thread 0xfffffe0073cb4000 (103273)
exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffffe00587eb420) locked @ /syzkaller/managers/i386/kernel/sys/netinet6/sctp6_usrreq.c:787
Process 3411 (ifconfig) thread 0xfffffe006d1fd000 (100127)
exclusive sx ifnet_detach_sx (ifnet_detach_sx) r = 0 (0xffffffff838602c0) locked @ /syzkaller/managers/i386/kernel/sys/net/if.c:3039
Process 8 (pagedaemon) thread 0xfffffe005875d000 (100077)
exclusive sleep mutex vm laundry pagequeue (vm pagequeue) r = 0 (0xffffffff8388ef40) locked @ /syzkaller/managers/i386/kernel/sys/vm/vm_page.c:3749
Process 8 (pagedaemon) thread 0xfffffe0057696740 (100081)
shared rw UMA lock (UMA lock) r = 0 (0xffffffff82c0b640) locked @ /syzkaller/managers/i386/kernel/sys/vm/uma_core.c:3073
shared sx umareclaim (umareclaim) r = 0 (0xffffffff8388e480) locked @ /syzkaller/managers/i386/kernel/sys/vm/uma_core.c:5292
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
          tcp_hpts            7         4801K            7
            devbuf         4192         4324K         4220
         sysctloid        34865         2055K        34936
             vtbuf           24         1968K           46
              kobj          326         1304K          488
            newblk           10         1027K         3714
          vfscache            3         1025K            3
               pcb           73          723K         1101
          inodedep           28          523K         3133
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          143          290K         4188
         vnet_data            2          224K            2
          acpitask            1          224K            1
          filedesc           28          217K         6056
            acpica         1674          184K        60830
           tidhash            3          141K            3
              vmem            3          138K            5
           pagedep           12          131K         3001
            linker          352          130K          394
        tfo_ccache            1          128K            1
          IP reass            1          128K            1
            DEVFS1          118          118K          153
               sem            4          106K            4
        gtaskqueue           18           98K           18
               bus          985           81K         5155
          mtx_pool            2           72K            2
          syncache            1           68K            1
     NFSD srvcache            3           68K            3
            module          513           65K          513
       ddb_capture            1           64K            1
               BPF           30           53K          161
               LRO           46           47K           66
              umtx          352           44K          352
           kdtrace          224           44K         7388
              temp           34           39K         3516
          routetbl          602           34K         2195
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          128           32K          147
               msg            4           30K            4
            kbdmux            6           28K            6
         sctp_stro           23           23K          140
        DEVFS_RULE           56           20K           56
            ifaddr           67           19K          156
         sctp_atcl           47           18K          661
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           97           16K           97
            bus-sc           34           15K         1687
      eventhandler          161           14K          161
            KTRACE          100           13K          100
             ifnet            7           13K           16
           lltable           40           12K          135
       ether_multi          147           12K          450
              kenv           95           12K           95
              GEOM           61           11K          481
              rman           86           11K          451
         CAM queue            5           11K         1528
         in6_multi           65            9K          173
         bmsafemap            2            9K         3092
               rpc            4            9K            4
           devstat            4            9K            4
              UART           12            9K           12
              ksem            1            8K          175
             shmfd            1            8K            2
       pfs_vncache            1            8K            1
         sctp_timw           31            8K           31
     audit_evclass          238            8K          300
         taskqueue           63            7K           63
            DEVFSP          102            7K          689
            kqueue           67            7K         4131
            plimit           25            7K          515
            sglist            6            7K            6
              cred           24            6K          289
           CAM DEV            3            6K          510
          kcovinfo           91            6K          221
         pfs_nodes           22            6K           22
             hhook           15            5K           17
          pf_ifnet           12            5K          131
               UMA          267            5K          267
      tcp_fsb_rack            2            5K         1190
                vt           11            5K           11
           pwddesc           65            5K         4112
          pf_table            2            4K           87
           memdesc            1            4K            1
               MCA           32            4K           32
       ufs_dirhash            8            4K           24
             evdev            4            4K            4
           session           31            4K           73
            dirrem           15            4K         3041
         proc-args           92            4K         5817
           acpisem           28            4K           28
             lockf           27            3K           79
         sctp_atky           70            3K          821
          terminal           11            3K           11
             selfd           38            3K        64938
          sctp_ifa           18            3K           34
             clone            9            3K            9
           uidinfo            3            3K           19
            ip6ndp           13            3K           35
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
            CC Mem            8            2K         1172
          freefile           15            2K         3035
            select           13            2K           70
            Unitno           27            2K           85
               tun            7            2K           16
           CAM XPT           22            2K          543
               msi           12            2K           12
         toponodes            6            2K            6
       ipsecpolicy            2            2K            2
          in_multi            5            2K           17
           acpidev           20            2K           20
           softdep            1            1K            1
             mkdir            8            1K         5962
            diradd            8            1K         3077
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K           10
       vnodemarker            2            1K           24
      NFSD session            1            1K            1
         newdirblk            7            1K         2981
        CAM periph            4            1K          271
             ipsec            3            1K            3
          sctp_ifn            6            1K           34
               mld            6            1K           15
              igmp            6            1K           15
              pfil            6            1K            6
            isadev            6            1K            6
         sctp_athm           47            1K          677
          sctp_map           46            1K          280
             mount           16            1K           89
          pci_link           10            1K           10
       inpcbpolicy           21            1K         1550
            crypto            4            1K            4
 encap_export_host           12            1K           12
         sctp_aadr            9            1K           23
           netlink            2            1K           89
               osd           13            1K         1185
              cdev            2            1K            2
       lkpikmalloc            8            1K            9
    chacha20random            1            1K            1
            biobuf            1            1K            1
          procdesc            3            1K           26
      tcp_pcm_rack            1            1K          610
            vnodes            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
           CAM SIM            2            1K            2
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            prison            6            1K            6
            soname            6            1K         6259
         cryptodev            2            1K          419
           pf_rule            1            1K          101
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
               aio            4            1K            4
          pmchooks            1            1K            1
          CAM path            4            1K         1034
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
          sctp_vrf            1            1K            1
              vnet            1            1K            1
               pmc            1            1K            1
           entropy            2            1K           56
          acpiintr            1            1K            1
          filecaps            3            1K          137
              cpus            2            1K            2
    vnet_data_free            1            1K            1
              ktls            2            1K            2
           Per-cpu            1            1K            1
          freework            1            1K         2989
               iov            1            1K        18670
          p1003.1b            1            1K            1
            ipcomp            0            0K            0
               esp            0            0K            0
                ah            0            0K            0
           filemon            0            0K           22
            mqdata            0            0K            0
       tcp_do_rack            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
     pf_krule_item            0            0K            0
           pf_temp            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K          161
         sctp_iter            0            0K           49
         sctp_mvrf            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8323     821      307106       0     246   37453824        0
        RADIX NODE    144   27063     288     1111430       0      62    3938544        0
              mbuf    256    8724     939      526626       0     254    2473728        0
          BUF TRIE    144     197   11619         850       0      62    1701504        0
        malloc-384    384    4118      52        4118       0      30    1601280        0
      mbuf_cluster   2048     762       0         762       0     246    1560576        0
        malloc-128    128   11449     145       11646       0     126    1484032        0
       malloc-4096   4096     341       2         998       0       2    1404928        0
       UMA Slabs 0    112   10636     302       10964       0     126    1225056        0
         vmem btag     56   15922     821       16667       0     254     937608        0
         FFS inode   1168     512      34        3548       0       8     637728        0
          lkpicurr    168       2    3094           2       0      62     520128        0
              pbuf   2624       0     198           0       0       2     519552        0
         VM OBJECT    264    1513     107       54833       0      30     427680        0
      malloc-65536  65536       6       0           6       0       1     393216        0
        256 Bucket   2048     129      39        2027       0       8     344064        0
       malloc-4096   4096      77       5        4162       0       2     335872        0
            THREAD   1824     158      18        3277       0       8     321024        0
    ertt_txseginfo     40       0    7474       54548       0     254     298960        0
             VNODE    448     552     114        3599       0      30     298368        0
      malloc-16384  16384      13       4        3019       0       1     278528        0
         malloc-64     64    4141     206       73610       0     254     278208        0
        malloc-384    384      87     593        3848       0      30     261120        0
         malloc-16     16   14478     272       19587       0     254     236000        0
        malloc-256    256      82     833        6820       0      62     234240        0
        malloc-128    128     712    1055       10264       0     126     226176        0
            DEVCTL   1024     101     103         273       0       0     208896        0
      malloc-65536  65536       2       1          10       0       1     196608        0
       mbuf_packet    256      25     737        4098       0     254     195072        0
           sctp_ep   1176      24     136         506       0     125     188160        0
         UMA Zones    768     239       0         239       0      16     183552        0
         malloc-32     32    5371     299        8663       0     254     181440        0
            socket    960      39     149        3495       0     129     180480        0
        malloc-128    128    1251     144       34789       0     126     178560        0
            lkpimm     56       1    3095           1       0     254     173376        0
         MAP ENTRY     96    1551     255      149409       0     126     173376        0
     FPU_save_area    832     160      47       60172       0      16     172224        0
       FFS2 dinode    256     512     133        3547       0      62     165120        0
       S VFS Cache    104    1018     386        4144       0     126     146016        0
      malloc-65536  65536       0       2         110       0       1     131072        0
      malloc-65536  65536       0       2         188       0       1     131072        0
      malloc-32768  32768       4       0           4       0       1     131072        0
       malloc-1024   1024     118      10         153       0      16     131072        0
              PROC   1376      64      13        4109       0       8     105952        0
        128 Bucket   1024      49      50        6365       0      16     101376        0
      malloc-32768  32768       3       0           3       0       1      98304        0
        malloc-256    256      60     300        2301       0      62      92160        0
         filedesc0   1072      65      19        4112       0       8      90048        0
          UMA Kegs    384     226       7         226       0      30      89472        0
       malloc-2048   2048      26      14         114       0       8      81920        0
       malloc-2048   2048      29      11         710       0       8      81920        0
             g_bio    408       0     200        6382       0      30      81600        0
        malloc-256    256     254      61        5553       0      62      80640        0
         sctp_asoc   2256      23      12         140       0     123      78960        0
         64 Bucket    512      59      85      540111       0      30      73728        0
         malloc-64     64     520     551       19191       0     254      68544        0
        malloc-128    128     297     230         309       0     126      67456        0
        malloc-128    128     361     166        1245       0     126      67456        0
      malloc-32768  32768       0       2         120       0       1      65536        0
      malloc-16384  16384       2       2         162       0       1      65536        0
       malloc-4096   4096      12       4          25       0       2      65536        0
        malloc-256    256     114     141        1193       0      62      65280        0
        sctp_raddr    736      23      65         147       0     129      64768        0
         32 Bucket    256      68     172     2848956       0      62      61440        0
        malloc-384    384     106      44         160       0      30      57600        0
       malloc-8192   8192       5       2         132       0       1      57344        0
       malloc-8192   8192       7       0           7       0       1      57344        0
        malloc-128    128     175     228         752       0     126      51584        0
        malloc-256    256     139      56         176       0      62      49920        0
             NAMEI   1024       0      48       31023       0      16      49152        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-8192   8192       6       0           6       0       1      49152        0
       malloc-2048   2048       6      18         148       0       8      49152        0
       malloc-2048   2048       2      22         525       0       8      49152        0
       malloc-1024   1024      27      21          34       0      16      49152        0
       malloc-1024   1024      35      13        2238       0      16      49152        0
         tcp_inpcb   1312       8      28        1172       0       8      47232        0
            pcpu-8      8    4772     860        8823       0     254      45056        0
           DIRHASH   1024       0      40          35       0      16      40960        0
       malloc-8192   8192       1       4          25       0       1      40960        0
       malloc-4096   4096       4       6         346       0       2      40960        0
       malloc-2048   2048       3      17         510       0       8      40960        0
           VMSPACE    616      40      26        4104       0      16      40656        0
sctp_stream_msg_out    112      12     348          34       0     183      40320        0
              pipe    728      28      27         507       0      16      40040        0
         malloc-64     64      96     471         227       0     254      36288        0
         malloc-64     64     248     319         861       0     254      36288        0
         malloc-64     64     196     371        8445       0     254      36288        0
         malloc-64     64      54     513         321       0     254      36288        0
         malloc-64     64     458     109         663       0     254      36288        0
         malloc-64     64      40     527        1152       0     254      36288        0
      tcp_rack_map    128       0     279        1720       0     126      35712        0
        malloc-128    128       3     276         616       0     126      35712        0
        malloc-128    128     103     176        3953       0     126      35712        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-384    384      36      54          81       0      30      34560        0
        malloc-256    256      53      82        7150       0      62      34560        0
        malloc-256    256      16     119        3676       0      62      34560        0
        malloc-256    256      69      66        3837       0      62      34560        0
         udp_inpcb    424      10      71         335       0      30      34344        0
         TURNSTILE    136     177      75         177       0      62      34272        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       2       0           2       0       1      32768        0
       malloc-2048   2048       6      10         243       0       8      32768        0
       malloc-2048   2048      10       6         210       0       8      32768        0
       malloc-1024   1024       0      32           5       0      16      32768        0
       malloc-1024   1024      12      20         235       0      16      32768        0
       malloc-1024   1024       2      30          35       0      16      32768        0
       malloc-1024   1024      10      22          11       0      16      32768        0
        malloc-512    512       1      63          11       0      30      32768        0
        malloc-512    512       2      62          24       0      30      32768        0
        malloc-512    512      11      53         183       0      30      32768        0
        malloc-512    512       6      58         286       0      30      32768        0
        malloc-512    512       2      62         243       0      30      32768        0
        malloc-512    512       7      57         105       0      30      32768        0
        malloc-512    512       0      64          46       0      30      32768        0
           pcpu-64     64     488      24         488       0     254      32768        0
               PWD     40      22     786        3059       0     254      32320        0
            ttyinq    160     135      65         300       0      62      32000        0
             Files     80     245     155       16663       0     126      32000        0
              PGRP    120      31     233          73       0     126      31680        0
            clpbuf   2624       0      12          24       0       4      31488        0
   tcp_inpcb ports     32       4     878         852       0     254      28224        0
         malloc-32     32     617     265         718       0     254      28224        0
         malloc-32     32     303     579        5874       0     254      28224        0
         16 Bucket    144      53     143        2271       0      62      28224        0
          4 Bucket     48       4     584           8       0     254      28224        0
            da_ccb    544       0      49        1720       0      16      26656        0
            cpuset    200       7     121           7       0      62      25600        0
       malloc-4096   4096       1       5         596       0       2      24576        0
          rl_entry     40      59     547          59       0     254      24240        0
          8 Bucket     80      55     245         963       0     126      24000        0
        malloc-384    384      52       8          52       0      30      23040        0
        malloc-384    384      18      42         420       0      30      23040        0
     udplite_inpcb    424       0      54          19       0      30      22896        0
       Mountpoints   2816       2       6           2       0       4      22528        0
        SLEEPQUEUE     88     177      79         177       0     126      22528        0
          ksiginfo    112      64     116       57085       0     126      20160        0
              ertt     72       8     272        1172       0     126      20160        0
         malloc-32     32      37     593         104       0     254      20160        0
         malloc-32     32      54     576         209       0     254      20160        0
         malloc-32     32      40     590         738       0     254      20160        0
         malloc-32     32      58     572        2405       0     254      20160        0
          2 Bucket     32      57     573         584       0     254      20160        0
     routing nhops    256      25      50          77       0      62      19200        0
             ripcb    392       3      42          24       0      30      17640        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       1       1           2       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       1       3          79       0       2      16384        0
       malloc-4096   4096       0       4           3       0       2      16384        0
       malloc-2048   2048       2       6           2       0       8      16384        0
       malloc-1024   1024       1      15           1       0      16      16384        0
           SMR CPU     32       7     504           7       0     254      16352        0
        sctp_laddr     48      10     326         144       0     254      16128        0
   udp_inpcb ports     32       3     501          38       0     254      16128        0
      vtnet_tx_hdr     24       0     668      153646       0     254      16032        0
             KNOTE    160      34      66       32308       0      62      16000        0
              kenv    258      17      43        1095       0      30      15480        0
             unpcb    256      14      46        1380       0     152      15360        0
            mqnode    416       3      33           3       0      30      14976        0
              vmem   1856       1       7           1       0       8      14848        0
        SMR SHARED     24       7     504           7       0     254      12264        0
      tcp_rack_pcb   1216       1       9         595       0       8      12160        0
           rtentry    168      28      44          77       0      62      12096        0
         malloc-32     32      80     298          93       0     254      12096        0
         malloc-16     16      10     740        1179       0     254      12000        0
         malloc-16     16      18     732         131       0     254      12000        0
         malloc-16     16     290     460         505       0     254      12000        0
         malloc-16     16      46     704          72       0     254      12000        0
         malloc-16     16     183     567        2995       0     254      12000        0
         malloc-16     16      20     730       30367       0     254      12000        0
         malloc-16     16     121     629        1214       0     254      12000        0
       L VFS Cache    320       0      36           1       0      30      11520        0
        malloc-384    384       1      29           2       0      30      11520        0
       malloc-4096   4096       1       1           1       0       2       8192        0
           pcpu-16     16       8     504           8       0     254       8192        0
         hostcache     64       3     123           3       0     254       8064        0
udplite_inpcb ports     32       0     252           5       0     254       8064        0
        sctp_chunk    152      17      35          44       0     152       7904        0
       UMA Slabs 1    176      10      12          10       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     150          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    152       0       0           0       0     150          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    360       0       0           0       0     134          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags    184       0       0           0       0      62          0        0
       tcp_bbr_pcb    832       0       0         116       0      16          0        0
       tcp_bbr_map    128       0       0        5862       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
          syncache    168       0       0           4       0     151          0        0
               ipq     56       0       0           0       0     254          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
        sctp_readq    152       0       0           4       0     151          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        1349       0     136          0        0
          tcpreass     48       0       0           0       0     254          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           2       0      30          0        0
             AIOCB    552       0       0          20       0      16          0        0
               AIO    208       0       0          22       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    232       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
           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     246          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     246          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       8          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
      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-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-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
        malloc-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 (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/03/18 16:54 freebsd-src 04473cfc4d07 baa80228 console log report ci-freebsd-i386 panic: lock (sleep mutex) sctp-inp not locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:LINE
2024/03/18 07:37 freebsd-src 228fc43bcf4f d615901c console log report ci-freebsd-i386 panic: lock (sleep mutex) sctp-inp not locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:LINE
2024/03/17 17:30 freebsd-src d50685b303e3 d615901c console log report ci-freebsd-i386 panic: lock (sleep mutex) sctp-inp not locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:LINE
2024/03/17 11:11 freebsd-src d50685b303e3 d615901c console log report ci-freebsd-i386 panic: lock (sleep mutex) sctp-inp not locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:LINE
2024/03/17 00:39 freebsd-src 75464941dc17 d615901c console log report ci-freebsd-i386 panic: lock (sleep mutex) sctp-inp not locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:LINE
2024/03/15 20:07 freebsd-src d2a824c29d69 d615901c console log report ci-freebsd-i386 panic: lock (sleep mutex) sctp-inp not locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_pcb.c:LINE
* Struck through repros no longer work on HEAD.