syzbot


panic: Assertion mtx_unowned(m) failed at /syzkaller/managers/i386/kernel/sys/kern/kern_mutex.c:LINE (4)

Status: upstream: reported on 2024/04/02 20:13
Reported-by: syzbot+9fade22412c60a0e8058@syzkaller.appspotmail.com
First crash: 48d, last: 43d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd panic: Assertion mtx_unowned(m) failed at /syzkaller/managers/i386/kernel/sys/kern/kern_mutex.c:LINE (3) 1 186d 186d 0/2 auto-obsoleted due to no activity on 2024/02/14 01:12
freebsd panic: Assertion mtx_unowned(m) failed at /syzkaller/managers/i386/kernel/sys/kern/kern_mutex.c:LINE (2) 2 761d 829d 0/2 auto-closed as invalid on 2022/07/19 03:48
freebsd panic: Assertion mtx_unowned(m) failed at /syzkaller/managers/i386/kernel/sys/kern/kern_mutex.c:LINE syz 19 1085d 1649d 0/2 closed as dup on 2021/09/07 21:35

Sample crash report:
panic: Assertion mtx_unowned(m) failed at /syzkaller/managers/i386/kernel/sys/kern/kern_mutex.c:1188
cpuid = 1
time = 1712440882
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe006a9951d0
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe006a995330
vpanic() at vpanic+0x26a/frame 0xfffffe006a9954f0
panic() at panic+0xb5/frame 0xfffffe006a9955c0
_mtx_destroy() at _mtx_destroy+0x184/frame 0xfffffe006a995600
sctp_inpcb_free() at sctp_inpcb_free+0x1e56/frame 0xfffffe006a995690
sctp_close() at sctp_close+0x219/frame 0xfffffe006a995770
soclose() at soclose+0x3d0/frame 0xfffffe006a995860
_fdrop() at _fdrop+0x58/frame 0xfffffe006a995890
closef() at closef+0x655/frame 0xfffffe006a995a70
fdescfree() at fdescfree+0xa79/frame 0xfffffe006a995c50
exit1() at exit1+0x870/frame 0xfffffe006a995cf0
sys_exit() at sys_exit+0x28/frame 0xfffffe006a995d10
ia32_syscall() at ia32_syscall+0x466/frame 0xfffffe006a995f30
int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0xffffd72c
KDB: enter: panic
[ thread pid 1844 tid 100831 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x2190f37(%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         0xfffffe00033eee30
rdx                          0
rbx         0xffffffff82707860  .str.27
rsp         0xfffffe006a995310
rbp         0xfffffe006a995330
rsi                          0
rdi         0xffffffff815e5669  printf+0x149
r8                           0
r9                  0xffffffff
r10            0x1000000000d09
r11                        0x6
r12         0xfffffe00743ef000
r13         0xfffffffffffffffd
r14         0xffffffff82707860  .str.27
r15                          0
rip         0xffffffff815d215e  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x2190f37(%rip)
db> show proc
Process 1844 (syz-executor.3) at 0xfffffe0074630b00:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 774 at 0xfffffe006d2a5b00
 ABI: FreeBSD ELF32
 flag: 0x10002000  flag2: 0x40000
 arguments: /root/syz-executor.3 exec
 reaper: 0xfffffe00541f7040 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe006d6d94d0
   (map 0xfffffe006d6d94d0)
   (map.pmap 0xfffffe006d6d9590)
   (pmap 0xfffffe006d6d9600)
 threads: 1
100831                   Run     CPU 1                       syz-executor.3
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1844   774   774     0  RE      CPU 1                       syz-executor.3
 1843  1842   771     0  SV      uwait   0xfffffe00742e2600  syz-executor.1
 1842   771   771     0  T       (threaded)                  syz-executor.1
100830                   s                                   syz-executor.1
100940                   D       ppwait  0xfffffe0074654560  syz-executor.1
 1826  1825   772     0  SV      uwait   0xfffffe0057aae700  syz-executor.2
 1825   772   772     0  T       (threaded)                  syz-executor.2
100843                   s                                   syz-executor.2
100924                   D       ppwait  0xfffffe007435dfc0  syz-executor.2
 1815   770   770     0  S       (threaded)                  syz-executor.0
100834                   S       nanslp  0xffffffff83744480  syz-executor.0
100917                   S       connec  0xfffffe006aa140da  syz-executor.0
100918                   S       uwait   0xfffffe00742e2500  syz-executor.0
 1794     1   771     0  SV      uwait   0xfffffe00742e2e00  syz-executor.1
 1786     1   772     0  SV      uwait   0xfffffe0057aad800  syz-executor.2
 1769     1   774     0  SV      connec  0xfffffe0058bd40da  syz-executor.3
 1763     1   772     0  SV      uwait   0xfffffe00742e3080  syz-executor.2
 1757     1   771     0  SV      uwait   0xfffffe0057aad300  syz-executor.1
 1740     1   774     0  SV      uwait   0xfffffe006a60f680  syz-executor.3
 1723     1   772     0  SV      connec  0xfffffe0058bd149a  syz-executor.2
 1716     1   771     0  SV      uwait   0xfffffe00742e3980  syz-executor.1
 1679     1   774     0  SV      uwait   0xfffffe00742e2d00  syz-executor.3
 1666     1   771     0  SV      uwait   0xfffffe00742e2f00  syz-executor.1
 1664     1   770     0  SV      uwait   0xfffffe0057aaf380  syz-executor.0
 1655     1   774     0  SV      connec  0xfffffe0058bda0da  syz-executor.3
 1645     1   772     0  SV      uwait   0xfffffe005754bb80  syz-executor.2
 1639     1   770     0  SV      uwait   0xfffffe0057aae080  syz-executor.0
 1627     1   774     0  SV      uwait   0xfffffe0057aadc00  syz-executor.3
 1614     1   770     0  SV      uwait   0xfffffe006a60f280  syz-executor.0
 1579     1   771     0  SV      uwait   0xfffffe0057aae280  syz-executor.1
 1560     1   772     0  SV      uwait   0xfffffe0057aad000  syz-executor.2
 1474     1   772     0  SV      uwait   0xfffffe0057aad600  syz-executor.2
 1444     1   774     0  SV      uwait   0xfffffe005754bc80  syz-executor.3
 1416     1   770     0  SV      uwait   0xfffffe006a610280  syz-executor.0
 1358     1   770     0  SV      uwait   0xfffffe006a60f380  syz-executor.0
 1280     1   772     0  SV      uwait   0xfffffe005754be80  syz-executor.2
 1260     1   774     0  SV      uwait   0xfffffe005754bd80  syz-executor.3
 1252     1   770     0  SV      uwait   0xfffffe006a60f580  syz-executor.0
 1237     1   771     0  SV      uwait   0xfffffe006a60f780  syz-executor.1
 1213     1   770     0  SV      uwait   0xfffffe005754b780  syz-executor.0
 1205     1   774     0  SV      uwait   0xfffffe00742e3880  syz-executor.3
 1191     1   772     0  SV      uwait   0xfffffe0057aade00  syz-executor.2
 1186     1   770     0  SV      uwait   0xfffffe005754ba80  syz-executor.0
 1165     1   770     0  SV      uwait   0xfffffe0057aae180  syz-executor.0
 1162     1   771     0  SV      uwait   0xfffffe0057aad400  syz-executor.1
 1116     1   771     0  SV      uwait   0xfffffe0057aada00  syz-executor.1
 1073     1   770     0  SV      uwait   0xfffffe0057aad900  syz-executor.0
 1056     1   771     0  SV      uwait   0xfffffe006a60ff00  syz-executor.1
  821   810   821     0  Ss      select  0xfffffe006d6e4e40  dhclient
  816     1   816     0  Ss      select  0xfffffe006d6e4dc0  dhclient
  810   789   424    65  S       select  0xfffffe006d6e4ec0  dhclient
  808     0     0     0  DL      aiordy  0xfffffe006d2a4580  [aiod4]
  807     0     0     0  DL      aiordy  0xfffffe006d2a4ae0  [aiod3]
  806     0     0     0  DL      aiordy  0xfffffe006d2a5040  [aiod2]
  805     0     0     0  DL      aiordy  0xfffffe0057be25c0  [aiod1]
  789   424   424     0  S       wait    0xfffffe006d2a55a0  sh
  774   768   774     0  Ss      nanslp  0xffffffff83744480  syz-executor.3
  772   768   772     0  Ss      nanslp  0xffffffff83744480  syz-executor.2
  771   768   771     0  Ss      nanslp  0xffffffff83744480  syz-executor.1
  770   768   770     0  Rs                                  syz-executor.0
  768   766   766     0  S       (threaded)                  syz-fuzzer
100095                   S       uwait   0xfffffe00542add00  syz-fuzzer
100111                   S       uwait   0xfffffe0057aaec80  syz-fuzzer
100112                   S       wait    0xfffffe0057be0580  syz-fuzzer
100113                   S       uwait   0xfffffe0057aaee80  syz-fuzzer
100114                   S       kqread  0xfffffe00589f0800  syz-fuzzer
100115                   S       wait    0xfffffe0057be0580  syz-fuzzer
100116                   S       uwait   0xfffffe006a611180  syz-fuzzer
100117                   S       wait    0xfffffe0057be0580  syz-fuzzer
100119                   S       wait    0xfffffe0057be0580  syz-fuzzer
100120                   S       uwait   0xfffffe006a60fd00  syz-fuzzer
100129                   S       uwait   0xfffffe0057aae600  syz-fuzzer
100142                   S       uwait   0xfffffe0057aadb00  syz-fuzzer
100286                   S       uwait   0xfffffe00742e3580  syz-fuzzer
  766   764   766     0  Ss      pause   0xfffffe0057be10f0  csh
  764   682   764     0  Ss      select  0xfffffe00588db640  sshd
  748     1   748     0  Ss+     ttyin   0xfffffe00576904b0  getty
  747     1   747     0  Ss+     ttyin   0xfffffe00587f08b0  getty
  746     1   746     0  Ss+     ttyin   0xfffffe00587f10b0  getty
  745     1   745     0  Ss+     ttyin   0xfffffe00587f18b0  getty
  744     1   744     0  Ss+     ttyin   0xfffffe00543410b0  getty
  743     1   743     0  Ss+     ttyin   0xfffffe00543418b0  getty
  742     1   742     0  Ss+     ttyin   0xfffffe00543420b0  getty
  741     1   741     0  Ss+     ttyin   0xfffffe00543428b0  getty
  740     1   740     0  Ss+     ttyin   0xfffffe00543430b0  getty
  738     1    18     0  S+      piperd  0xfffffe0058b2ac70  logger
  737   736    18     0  S+      nanslp  0xffffffff83744480  sleep
  736     1    18     0  S+      wait    0xfffffe00571b85a0  sh
  686     1   686     0  Ss      nanslp  0xffffffff83744480  cron
  682     1   682     0  Ss      select  0xfffffe00588db840  sshd
  495     1   495     0  Ss      select  0xfffffe00589fc6c0  syslogd
  424     1   424     0  Ss      wait    0xfffffe006a7e2ac0  devd
  423     1   423    65  Ss      select  0xfffffe00589fc840  dhclient
  338     1   338     0  Ss      select  0xfffffe00589fca40  dhclient
  335     1   335     0  Ss      select  0xfffffe00589fcac0  dhclient
   17     0     0     0  DL      syncer  0xffffffff83861ba0  [syncer]
   16     0     0     0  DL      vlruwt  0xfffffe00571b9060  [vnlru]
   15     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff83860180  [bufdaemon]
100082                   D       -       0xffffffff82c0a140  [bufspacedaemon-0]
100094                   D       sdflush 0xfffffe006a616ce8  [/ worker]
    9     0     0     0  DL      psleep  0xffffffff838a9680  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff838914f8  [dom0]
100080                   D       launds  0xffffffff83891504  [laundry: dom0]
100081                   D       umarcl  0xffffffff81d6d0d0  [uma]
    7     0     0     0  DL      -       0xffffffff834c1cb0  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff83f86ea0  [pf purge]
    5     0     0     0  RL      CPU 0                       [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100044                   D       -       0xffffffff8348c340  [doneq0]
100045                   D       -       0xffffffff8348c2c0  [async]
100076                   D       -       0xffffffff8348c140  [scanner]
    3     0     0     0  DL      (threaded)                  [crypto]
100041                   D       crypto_ 0xffffffff8388cd20  [crypto]
100042                   D       crypto_ 0xfffffe00085e8830  [crypto returns 0]
100043                   D       crypto_ 0xfffffe00085e8880  [crypto returns 1]
   14     0     0     0  DL      seqstat 0xfffffe00085fe488  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100035                   D       -       0xffffffff836ece00  [g_event]
100036                   D       -       0xffffffff836ece20  [g_up]
100037                   D       -       0xffffffff836ece40  [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    0xfffffe00541f7040  [init]
   10     0     0     0  DL      audit_w 0xffffffff8388d780  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff836ed7e0  [swapper]
100005                   D       -       0xfffffe00079e3000  [softirq_0]
100006                   D       -       0xfffffe00079e2e00  [softirq_1]
100007                   D       -       0xfffffe00079e2d00  [if_io_tqg_0]
100008                   D       -       0xfffffe00079e2c00  [if_io_tqg_1]
100009                   D       -       0xfffffe00079e2b00  [if_config_tqg_0]
100010                   D       -       0xfffffe00079e2a00  [pci_hp taskq]
100011                   D       -       0xfffffe00079e2900  [kqueue_ctx taskq]
100014                   D       -       0xfffffe00079e2600  [thread taskq]
100016                   D       -       0xfffffe00079e2400  [aiod_kick taskq]
100017                   D       -       0xfffffe00079e2300  [deferred_unmount ta]
100018                   D       -       0xfffffe00079e2200  [inm_free taskq]
100019                   D       -       0xfffffe00079e2100  [in6m_free taskq]
100020                   D       -       0xfffffe00079e2000  [linuxkpi_irq_wq]
100021                   D       -       0xfffffe00079e1e00  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe00079e1e00  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe00079e1e00  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe00079e1e00  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe00079e1d00  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe00079e1d00  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe00079e1d00  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe00079e1d00  [linuxkpi_long_wq_3]
100034                   D       -       0xfffffe00079e1c00  [firmware taskq]
100039                   D       -       0xfffffe00079e1100  [crypto_0]
100040                   D       -       0xfffffe00079e1100  [crypto_1]
100055                   D       -       0xfffffe00079e0900  [vtnet0 rxq 0]
100056                   D       -       0xfffffe00079e0800  [vtnet0 txq 0]
100057                   D       -       0xfffffe00079e0700  [vtnet0 rxq 1]
100058                   D       -       0xfffffe00079e0600  [vtnet0 txq 1]
100062                   D       vtbslp  0xfffffe0057178280  [virtio_balloon]
100066                   D       -       0xffffffff8270caa0  [deadlkres]
100070                   D       -       0xfffffe00079e0b00  [acpi_task_0]
100071                   D       -       0xfffffe00079e0b00  [acpi_task_1]
100072                   D       -       0xfffffe00079e0b00  [acpi_task_2]
100074                   D       -       0xfffffe00079e3100  [mca taskq]
100075                   D       -       0xfffffe00079e0a00  [CAM taskq]
 1580  1579   771     0  Z                                   syz-executor.1
 1615  1614   770     0  Z                                   syz-executor.0
 1640  1639   770     0  Z                                   syz-executor.0
 1646  1645   772     0  Z                                   syz-executor.2
 1667  1666   771     0  Z                                   syz-executor.1
 1680  1679   774     0  Z                                   syz-executor.3
 1717  1716   771     0  Z                                   syz-executor.1
 1741  1740   774     0  Z                                   syz-executor.3
 1758  1757   771     0  Z                                   syz-executor.1
 1764  1763   772     0  Z                                   syz-executor.2
 1787  1786   772     0  Z                                   syz-executor.2
 1795  1794   771     0  Z                                   syz-executor.1
 1827  1826   772     0  Z                                   syz-executor.2
 1845  1843   771     0  Z                                   syz-executor.1
 1846  1844   774     0  Z                                   syz-executor.3
 1847  1844   774     0  Z                                   syz-executor.3
db> show all locks
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            linker          371         4922K          489
          tcp_hpts            7         4801K            7
            devbuf         4192         4324K         4217
         sysctloid        34865         2055K        34936
             vtbuf           24         1968K           46
              kobj          326         1304K          488
            newblk          730         1207K         1416
          vfscache            3         1025K            3
               pcb          220          889K         2930
          filedesc           92          730K         2109
          inodedep          131          561K          767
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
           subproc          231          482K         1970
              intr            4          472K            4
         vnet_data            2          224K            2
          acpitask            1          224K            1
            acpica         1674          184K        60830
           pagedep           55          142K          690
           tidhash            3          141K            3
              vmem            3          138K            5
        tfo_ccache            1          128K            1
          IP reass            1          128K            1
            DEVFS1          109          109K          126
               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
           kdtrace          306           57K         2790
              umtx          416           52K          416
         sctp_atcl          133           50K         1731
              temp           35           37K         1919
               BPF           24           37K           24
         sctp_stro           35           35K          272
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          128           32K          138
               msg            4           30K            4
            kbdmux            6           28K            6
      tcp_fsb_rack           10           21K          156
        DEVFS_RULE           56           20K           56
            ifaddr           67           19K           69
               LRO           18           19K           18
            dirrem           70           18K          693
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
          routetbl          130           16K          410
           ithread           97           16K           97
            bus-sc           34           15K         1687
      eventhandler          162           14K          162
           lltable           43           14K           45
            KTRACE          100           13K          326
             ifnet            7           13K            7
       ether_multi          152           13K          162
              kenv           95           12K           95
              GEOM           61           11K          481
              rman           86           11K          451
         CAM queue            5           11K         1528
            kqueue          111           10K         1852
              cred           35            9K          292
         in6_multi           65            9K           65
         bmsafemap            2            9K          728
               rpc            4            9K            4
              ksem            2            9K            6
           devstat            4            9K            4
              UART           12            9K           12
         sctp_timw           32            8K           32
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
          freefile           62            8K          651
     audit_evclass          238            8K          300
         taskqueue           63            7K           63
            CC Mem           26            7K          307
         newdirblk           51            7K          679
         sctp_atky          169            7K         2046
            sglist            6            7K            6
           CAM DEV            3            6K          510
           pwddesc           92            6K         1863
            plimit           22            6K          348
         pfs_nodes           22            6K           22
             hhook           15            5K           17
            DEVFSP           77            5K          191
       ufs_dirhash           24            5K           24
               UMA          267            5K          267
          pf_ifnet           10            5K           19
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
            diradd           30            4K          726
           acpisem           28            4K           28
           session           26            4K           35
          kcovinfo           52            4K           52
         proc-args          117            4K         2904
          terminal           11            3K           11
             mkdir           20            3K         1358
          indirdep           10            3K           10
             clone            9            3K            9
           uidinfo            3            3K           19
         sctp_athm          133            3K         1756
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320    1078       31161       0     254   38494208        0
              mbuf    256    8707     956       61178       0     254    2473728        0
        malloc-384    384    4252     488        4889       0      30    1820160        0
          BUF TRIE    144     228   11588         645       0      62    1701504        0
      mbuf_cluster   2048     762       0         762       0     254    1560576        0
        malloc-128    128   11519     199       13600       0     126    1499904        0
       malloc-4096   4096     328       4         493       0       2    1359872        0
       UMA Slabs 0    112   11021      25       11021       0     126    1237152        0
         sctp_asoc   2256      35     475         272       0     254    1150560        0
        RADIX NODE    144    7321     206       42256       0      62    1083888        0
         vmem btag     56   16723      92       16723       0     254     941640        0
      malloc-16384  16384      46       3        1053       0       1     802816        0
      malloc-65536  65536      10       1          13       0       1     720896        0
         FFS inode   1168     560      28        1211       0       8     686784        0
           sctp_ep   1144      99     412        1434       0     254     584584        0
          lkpicurr    168       2    3094           2       0      62     520128        0
              pbuf   2624       0     198           0       0       2     519552        0
       malloc-4096   4096     116       4        1856       0       2     491520        0
            socket    960     123     385        3135       0     254     487680        0
         VM OBJECT    264    1604      46       22549       0      30     435600        0
      malloc-65536  65536       6       0           6       0       1     393216        0
        sctp_raddr    736      35     482         322       0     254     380512        0
            THREAD   1824     196      12         941       0       8     379392        0
        256 Bucket   2048     150      18         990       0       8     344064        0
             VNODE    448     598      95        1251       0      30     310464        0
         malloc-64     64    3938     409       25951       0     254     278208        0
        malloc-256    256     931      74        2081       0      62     257280        0
       malloc-2048   2048     105      15        1457       0       8     245760        0
         malloc-16     16   14408     342       14749       0     254     236000        0
         MAP ENTRY     96    2242     152       65070       0     126     229824        0
            DEVCTL   1024      21     199         148       0       0     225280        0
           tcp_log    416       0     513         807       0     254     213408        0
      malloc-32768  32768       6       0           6       0       1     196608        0
       mbuf_packet    256      29     733        7497       0     254     195072        0
         UMA Zones    768     239       0         239       0      16     183552        0
         malloc-32     32    5294     376        5325       0     254     181440        0
     FPU_save_area    832     198      18        1120       0      16     179712        0
        malloc-128    128    1178     217       28725       0     126     178560        0
        malloc-256    256     190     500        2016       0      62     176640        0
            lkpimm     56       1    3095           1       0     254     173376        0
              PROC   1376     108      13        1847       0       8     166496        0
       malloc-2048   2048       5      75        1228       0       8     163840        0
       malloc-1024   1024     134      26         151       0      16     163840        0
        malloc-128    128    1159     112        5386       0     126     162688        0
       FFS2 dinode    256     560      70        1211       0      62     161280        0
       S VFS Cache    104    1022     382        1769       0     126     146016        0
      malloc-65536  65536       0       2          60       0       1     131072        0
      malloc-65536  65536       0       2         110       0       1     131072        0
             unpcb    256      11     499        1175       0     254     130560        0
          ksiginfo    112     102     942         989       0     126     116928        0
         filedesc0   1072      93      12        1863       0       8     112560        0
        malloc-256    256     324     111        2079       0      62     111360        0
        malloc-128    128     142     633        1513       0     126      99200        0
       malloc-4096   4096      20       4          40       0       2      98304        0
       malloc-8192   8192      10       1          12       0       1      90112        0
          UMA Kegs    384     226       7         226       0      30      89472        0
             g_bio    408       0     210        5754       0      30      85680        0
        128 Bucket   1024      55      28         292       0      16      84992        0
        sctp_readq    152       0     520          15       0     254      79040        0
        sctp_chunk    152      15     505         140       0     254      79040        0
        malloc-384    384     175       5         181       0      30      69120        0
        malloc-384    384     134      46        1732       0      30      69120        0
         malloc-64     64     538     533         743       0     254      68544        0
         malloc-64     64     570     501        2264       0     254      68544        0
        malloc-128    128     360     167         583       0     126      67456        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       0       1           8       0       1      65536        0
      malloc-32768  32768       0       2         120       0       1      65536        0
      malloc-32768  32768       1       1          12       0       1      65536        0
       malloc-1024   1024      39      25         441       0      16      65536        0
        malloc-256    256     177      78        3061       0      62      65280        0
         tcp_inpcb   1304      26      22         307       0       8      62592        0
sctp_stream_msg_out    112      10     530          35       0     254      60480        0
           VMSPACE    616      70      26        1472       0      16      59136        0
       malloc-8192   8192       7       0          33       0       1      57344        0
       malloc-8192   8192       1       6          46       0       1      57344        0
         64 Bucket    512      79      25        1850       0      30      53248        0
         32 Bucket    256      82     113         547       0      62      49920        0
           DIRHASH   1024      35      13          35       0      16      49152        0
             NAMEI   1024       0      48       16028       0      16      49152        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-4096   4096       7       5         831       0       2      49152        0
       malloc-1024   1024       7      41        1551       0      16      49152        0
            da_ccb    544       0      84        1566       0      16      45696        0
          syncache    168       0     264           4       0     254      44352        0
             Files     80     290     260       10194       0     126      44000        0
         TURNSTILE    136     209     106         209       0      62      42840        0
       malloc-8192   8192       3       2         104       0       1      40960        0
       malloc-4096   4096       9       1          12       0       2      40960        0
            pcpu-8      8    4751     369        4907       0     254      40960        0
         udp_inpcb    416       7      83         176       0      30      37440        0
         malloc-64     64     149     418        2047       0     254      36288        0
         malloc-64     64       7     560       13694       0     254      36288        0
         malloc-64     64     135     432        2665       0     254      36288        0
         malloc-64     64     223     344         264       0     254      36288        0
         malloc-64     64     251     316         369       0     254      36288        0
      tcp_rack_map    128       0     279         156       0     126      35712        0
       tcp_bbr_map    128      30     249         270       0     126      35712        0
        malloc-128    128      27     252         155       0     126      35712        0
        malloc-128    128      29     250          72       0     126      35712        0
        malloc-128    128     112     167         116       0     126      35712        0
     routing nhops    256      27     108          34       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-384    384      47      43          62       0      30      34560        0
        malloc-256    256      45      90         170       0      62      34560        0
        malloc-256    256      30     105         780       0      62      34560        0
        malloc-256    256      61      74        1313       0      62      34560        0
        malloc-256    256       7     128           9       0      62      34560        0
        SLEEPQUEUE     88     209     175         209       0     126      33792        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       0       2         160       0       1      32768        0
       malloc-2048   2048      12       4          79       0       8      32768        0
       malloc-2048   2048      11       5          11       0       8      32768        0
       malloc-2048   2048       3      13          61       0       8      32768        0
       malloc-2048   2048       0      16          40       0       8      32768        0
       malloc-1024   1024       3      29          22       0      16      32768        0
       malloc-1024   1024       9      23          10       0      16      32768        0
       malloc-1024   1024       5      27          20       0      16      32768        0
       malloc-1024   1024      10      22          13       0      16      32768        0
        malloc-512    512       5      59          37       0      30      32768        0
        malloc-512    512       8      56           8       0      30      32768        0
        malloc-512    512       0      64         132       0      30      32768        0
        malloc-512    512      10      54         111       0      30      32768        0
           pcpu-64     64     488      24         488       0     254      32768        0
    ertt_txseginfo     40       0     808        8993       0     254      32320        0
               PWD     40      53     755         767       0     254      32320        0
             KNOTE    160      30     170        9079       0      62      32000        0
            ttyinq    160     135      65         300       0      62      32000        0
              PGRP    120      26     238          35       0     126      31680        0
            clpbuf   2624       0      12          25       0       4      31488        0
       tcp_bbr_pcb    832      10      26         103       0      16      29952        0
        sctp_laddr     48       0     588         223       0     254      28224        0
         malloc-32     32     276     606        1128       0     254      28224        0
         16 Bucket    144      58     138         288       0      62      28224        0
          4 Bucket     48       5     583           9       0     254      28224        0
               AIO    208      18     115         354       0      62      27664        0
            cpuset    200       7     121           7       0      62      25600        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-8192   8192       1       2          20       0       1      24576        0
       malloc-4096   4096       2       4           5       0       2      24576        0
      tcp_rack_pcb   1216       5      15          78       0       8      24320        0
          rl_entry     40      37     569          37       0     254      24240        0
           rtentry    168      30     114          34       0      62      24192        0
              pipe    728      21      12         319       0      16      24024        0
          8 Bucket     80      56     244         680       0     126      24000        0
             ripcb    384       3      57          17       0      30      23040        0
        malloc-384    384      14      46          39       0      30      23040        0
        malloc-384    384      30      30          32       0      30      23040        0
        malloc-384    384       0      60         343       0      30      23040        0
         hostcache     64       1     314           1       0     254      20160        0
   udp_inpcb ports     32       4     626          49       0     254      20160        0
   tcp_inpcb ports     32      13     617         158       0     254      20160        0
              ertt     72      26     254         307       0     126      20160        0
         malloc-32     32     113     517         183       0     254      20160        0
         malloc-32     32      23     607          47       0     254      20160        0
         malloc-32     32      51     579         120       0     254      20160        0
         malloc-32     32     257     373        6995       0     254      20160        0
         malloc-32     32      66     564         530       0     254      20160        0
          2 Bucket     32      63     567         531       0     254      20160        0
            AIOLIO    272       0      70         354       0      30      19040        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-16384  16384       1       0           1       0       1      16384        0
       malloc-2048   2048       3       5           3       0       8      16384        0
       malloc-2048   2048       2       6           2       0       8      16384        0
       malloc-1024   1024       1      15           1       0      16      16384        0
        malloc-512    512       2      30           6       0      30      16384        0
        malloc-512    512       0      32           1       0      30      16384        0
           SMR CPU     32       7     504           7       0     254      16352        0
      vtnet_tx_hdr     24       0     668       17061       0     254      16032        0
         malloc-16     16     482     518       32137       0     254      16000        0
              kenv    258      17      43        1072       0      30      15480        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
         malloc-32     32     156     222        1410       0     254      12096        0
         malloc-16     16       9     741         737       0     254      12000        0
         malloc-16     16      15     735         212       0     254      12000        0
         malloc-16     16      91     659         690       0     254      12000        0
         malloc-16     16     268     482        4139       0     254      12000        0
         malloc-16     16      36     714         165       0     254      12000        0
         malloc-16     16      14     736          17       0     254      12000        0
        malloc-384    384       2      28           2       0      30      11520        0
       Mountpoints   2816       2       2           2       0       4      11264        0
       malloc-8192   8192       1       0           1       0       1       8192        0
           pcpu-16     16       4     252           4       0     254       4096        0
       UMA Slabs 1    176       9      13           9       0      62       3872        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
       FFS1 dinode    128       0       0           0       0     126          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    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 source nodes    152       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    360       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags    184       0       0           0       0      62          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
   tcp_log_id_node    120       0       0           0       0     126          0        0
 tcp_log_id_bucket    176       0       0           0       0      62          0        0
          tcpreass     48       0       0           0       0     254          0        0
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
             AIOCB    552       0       0           0       0      16          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
       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
      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-8192   8192       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/06 22:01 freebsd-src d902c8f55b8d ca620dd8 console log report ci-freebsd-i386 panic: Assertion mtx_unowned(m) failed at /syzkaller/managers/i386/kernel/sys/kern/kern_mutex.c:LINE
2024/04/02 20:12 freebsd-src 2db2566f55b0 f861ecca console log report ci-freebsd-i386 panic: Assertion mtx_unowned(m) failed at /syzkaller/managers/i386/kernel/sys/kern/kern_mutex.c:LINE
* Struck through repros no longer work on HEAD.