syzbot


panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/i386/kernel/sys/netinet/sctputil.c:LINE (3)

Status: auto-closed as invalid on 2021/11/21 14:53
Reported-by: syzbot+c87a06e5b697994c36c0@syzkaller.appspotmail.com
First crash: 1143d, last: 924d
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/i386/kernel/sys/netinet/sctputil.c:LINE (2) 2 1236d 1236d 0/2 auto-closed as invalid on 2021/01/13 18:02
freebsd panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/i386/kernel/sys/netinet/sctputil.c:LINE 1 1337d 1337d 0/2 auto-closed as invalid on 2020/10/03 19:39

Sample crash report:
panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/i386/kernel/sys/netinet/sctputil.c:4864
cpuid = 0
time = 1629730456
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe0053b5f0d0
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe0053b5f230
vpanic() at vpanic+0x2c5/frame 0xfffffe0053b5f310
panic() at panic+0xb5/frame 0xfffffe0053b5f3d0
__mtx_lock_flags() at __mtx_lock_flags+0x2f9/frame 0xfffffe0053b5f4b0
sctp_add_to_readq() at sctp_add_to_readq+0x6ca/frame 0xfffffe0053b5f550
sctp_notify_peer_addr_change() at sctp_notify_peer_addr_change+0x3fb/frame 0xfffffe0053b5f5c0
sctp_threshold_management() at sctp_threshold_management+0x26e/frame 0xfffffe0053b5f610
sctp_heartbeat_timer() at sctp_heartbeat_timer+0x362/frame 0xfffffe0053b5f710
sctp_timeout_handler() at sctp_timeout_handler+0xb5a/frame 0xfffffe0053b5f850
softclock_call_cc() at softclock_call_cc+0x3d9/frame 0xfffffe0053b5fa00
softclock() at softclock+0x152/frame 0xfffffe0053b5fa50
ithread_loop() at ithread_loop+0x4f1/frame 0xfffffe0053b5fbb0
fork_exit() at fork_exit+0xd0/frame 0xfffffe0053b5fbf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0053b5fbf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100034 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28e89ba(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0x6acc654ab477ed39
rdx                        0x1
rbx                          0
rsp         0xfffffe0053b5f210
rbp         0xfffffe0053b5f230
rsi                          0
rdi         0xffffffff817affc9  vprintf+0x319
r8                         0x3
r9          0xfffffe0053b5ed48
r10                          0
r11         0xfffffe0058530530
r12         0xfffffe0053e2c1e0
r13         0xfffffe0053b5f201
r14         0xffffffff82c6ac40  .str.18
r15         0xffffffff82c6ac40  .str.18
rip         0xffffffff817a397b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28e89ba(%rip)
db> show proc
Process 12 (intr) at 0xfffffe0053df6a70:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff8402d6c0
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff8402d6c0 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff8402e640
   (map 0xffffffff8402e640)
   (map.pmap 0xffffffff8402e700)
   (pmap 0xffffffff8402e760)
 threads: 23
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100019                   I                                   [swi6: task queue]
100032                   I                                   [swi3: vm]
100033                   L      *kernel  0xfffffe00a8ac39c0  [swi1: netisr 0]
100034                   Run     CPU 0                       [swi4: clock (0)]
100035                   I                                   [swi4: clock (1)]
100036                   I                                   [swi1: hpts]
100037                   I                                   [swi1: hpts]
100050                   I                                   [irq24: virtio_pci0]
100051                   I                                   [irq25: virtio_pci0]
100052                   I                                   [irq26: virtio_pci0]
100053                   I                                   [irq27: virtio_pci0]
100054                   I                                   [irq28: virtio_pci1]
100055                   I                                   [irq29: virtio_pci1]
100056                   I                                   [irq30: virtio_pci1]
100057                   I                                   [irq31: virtio_pci1]
100058                   I                                   [irq32: virtio_pci1]
100063                   I                                   [irq10: virtio_pci2]
100065                   I                                   [irq1: atkbd0]
100066                   I                                   [irq12: psm0]
100067                   I                                   [swi0: uart uart++]
100075                   I                                   [swi1: pf send]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 9227   794   794     0  R                                   syz-executor.2
 9226  9225   783     0  S       uwait   0xfffffe00a79e7080  syz-executor.1
 9225   783   783     0  T       (threaded)                  syz-executor.1
111958                   s                                   syz-executor.1
112009                   RunQ                                syz-executor.1
 9222     1   803     0  S       uwait   0xfffffe00a6ed5e80  syz-executor.3
 9219     1   783     0  S       uwait   0xfffffe00a6c6ae00  syz-executor.1
 9214     1  4712     0  S       uwait   0xfffffe00a6d56200  syz-executor.0
 9212     1   803     0  S       uwait   0xfffffe00a6e1a280  syz-executor.3
 9211     1   783     0  S       uwait   0xfffffe00a750a480  syz-executor.1
 9210     1   794     0  S       uwait   0xfffffe00a7529800  syz-executor.2
 9206     1  4712     0  S       umtxn   0xfffffe00a6ec0100  syz-executor.0
 9204     1   803     0  S       uwait   0xfffffe00a6e1a600  syz-executor.3
 9203     1  4712     0  S       umtxn   0xfffffe009e9a5a00  syz-executor.0
 9202     1   794     0  S       uwait   0xfffffe00a79e7980  syz-executor.2
 9200     1   783     0  S       uwait   0xfffffe00a6c6a200  syz-executor.1
 9193     1   783     0  S       uwait   0xfffffe00a756de00  syz-executor.1
 9192     1   794     0  S       uwait   0xfffffe009e9a5080  syz-executor.2
 9178     1   794     0  S       uwait   0xfffffe00a6c6a280  syz-executor.2
 8912     1   803 60928  S       uwait   0xfffffe00a6ec0500  syz-executor.3
 8771     1   783     0  S       uwait   0xfffffe0095c17000  syz-executor.1
 8764     1  4712     0  S       uwait   0xfffffe00a756d280  syz-executor.0
 8763     1   783     0  S       uwait   0xfffffe00a7577380  syz-executor.1
 8760     1   803     0  S       uwait   0xfffffe00a79e7600  syz-executor.3
 8759     1  4712     0  S       uwait   0xfffffe00a6ec0800  syz-executor.0
 8755     1   803     0  S       uwait   0xfffffe00a6dfce00  syz-executor.3
 8751     1   783     0  S       uwait   0xfffffe00a6c60200  syz-executor.1
 8750     1  4712     0  S       uwait   0xfffffe009e9a5200  syz-executor.0
 8749     1   803     0  S       uwait   0xfffffe00a79e9b00  syz-executor.3
 8740     1   783     0  S       uwait   0xfffffe009e4e3000  syz-executor.1
 8736     1   783     0  S       uwait   0xfffffe00a79e9780  syz-executor.1
 8568     1   794     0  S       uwait   0xfffffe00a6ec0400  syz-executor.2
 8566     1   794     0  S       uwait   0xfffffe00a6e74480  syz-executor.2
 7783     1   803     0  S       uwait   0xfffffe00a6ec0c80  syz-executor.3
 7782     1   803     0  S       uwait   0xfffffe00a7577d80  syz-executor.3
 7778     1   803     0  S       uwait   0xfffffe00a79e7800  syz-executor.3
 7777     1   794     0  S       uwait   0xfffffe00a756d000  syz-executor.2
 7776     1  7776     0  S       uwait   0xfffffe00a79e9880  syz-executor.3
 7774     1  7774     0  S       uwait   0xfffffe00a6ed5600  syz-executor.2
 7771     1   803     0  S       uwait   0xfffffe00a6f13600  syz-executor.3
 7770     1   794     0  S       uwait   0xfffffe00a7577000  syz-executor.2
 7769     1  7769     0  S       umtxn   0xfffffe00a6e1af00  syz-executor.2
 7767     1  7767     0  S       uwait   0xfffffe00a6c60e80  syz-executor.3
 7766     1   794     0  S       uwait   0xfffffe009e449580  syz-executor.2
 7765     1  7765     0  S       uwait   0xfffffe00a6c60800  syz-executor.2
 7761     1   794     0  S       uwait   0xfffffe00a79e7a00  syz-executor.2
 7760     1  7760     0  S       uwait   0xfffffe00a6f13b00  syz-executor.2
 7759     1   794     0  S       uwait   0xfffffe009e4e3380  syz-executor.2
 7756     1  7756     0  S       uwait   0xfffffe009e449980  syz-executor.2
 7621     1   783     0  S       uwait   0xfffffe00a79e7e00  syz-executor.1
 7615     1   783     0  S       uwait   0xfffffe00a6c6ac00  syz-executor.1
 7610     1   794     0  S       uwait   0xfffffe0095d45d80  syz-executor.2
 7609     1   783     0  S       uwait   0xfffffe00a79e7680  syz-executor.1
 7604     1   794     0  S       uwait   0xfffffe009e9a5000  syz-executor.2
 7600     1   794     0  S       uwait   0xfffffe00a6c6a800  syz-executor.2
 7591     1   794     0  S       uwait   0xfffffe009e9a5600  syz-executor.2
 7590     1   794     0  S       uwait   0xfffffe00a6c60700  syz-executor.2
 6963     1   794     0  S       uwait   0xfffffe009e4e3280  syz-executor.2
 6961     1   794     0  S       uwait   0xfffffe00a6f13680  syz-executor.2
 6955     1   794     0  S       uwait   0xfffffe00a6c60600  syz-executor.2
 6953     1   783     0  S       uwait   0xfffffe009e3f8680  syz-executor.1
 6951     1   794     0  S       uwait   0xfffffe00a6d56a00  syz-executor.2
 6949     1   783     0  S       uwait   0xfffffe009e3f8a80  syz-executor.1
 6948     1   794     0  S       uwait   0xfffffe009e9a5500  syz-executor.2
 6946     1   803     0  S       uwait   0xfffffe009e3f8200  syz-executor.3
 6941     1   783     0  S       uwait   0xfffffe009e3f8c80  syz-executor.1
 6940     1   794     0  S       umtxn   0xfffffe00a7577e00  syz-executor.2
 6939     1   803     0  S       uwait   0xfffffe009e9a5e00  syz-executor.3
 6936     1   803     0  S       uwait   0xfffffe00a750a180  syz-executor.3
 6932     1   783     0  S       umtxn   0xfffffe009e449c80  syz-executor.1
 6926     1   783     0  S       uwait   0xfffffe00a6c6a600  syz-executor.1
 5885     1   783     0  S       uwait   0xfffffe00a79e7580  syz-executor.1
 5874     1   783     0  S       uwait   0xfffffe00a6c60100  syz-executor.1
 5867     1   783     0  S       uwait   0xfffffe00a7577a00  syz-executor.1
 5859     1   783     0  S       uwait   0xfffffe00a6c60900  syz-executor.1
 5857     1   783     0  S       uwait   0xfffffe009e9a5d00  syz-executor.1
 4990     1  4990    65  Ss      piperd  0xfffffe0095cb4d00  dhclient
 4847     1   794     0  S       uwait   0xfffffe009e9a5900  syz-executor.2
 4846     1   794     0  S       umtxn   0xfffffe00a6c60500  syz-executor.2
 4836     1   794     0  S       uwait   0xfffffe00a6c6ac80  syz-executor.2
 4833     1   794     0  S       uwait   0xfffffe00a6c60300  syz-executor.2
 4828     1   794     0  S       uwait   0xfffffe00a7577c00  syz-executor.2
 4825     1   794     0  S       uwait   0xfffffe009e9a5b00  syz-executor.2
 4822     1   794     0  S       uwait   0xfffffe009e3f8480  syz-executor.2
 4821     1   794     0  S       uwait   0xfffffe009e4e3580  syz-executor.2
 4818     1   794     0  S       uwait   0xfffffe0095d45780  syz-executor.2
 4817     1   794     0  S       uwait   0xfffffe0057006d80  syz-executor.2
 4732     1  4732     0  Rs                                  dhclient
 4728     1  4728     0  Ss      select  0xfffffe00a75778c0  dhclient
 4712   780  4712     0  Rs                                  syz-executor.0
 3695     1   794     0  S       uwait   0xfffffe009e449b80  syz-executor.2
 3692     1   783     0  S       uwait   0xfffffe00a6c6aa80  syz-executor.1
 3676     1   794     0  S       uwait   0xfffffe00a6c6a880  syz-executor.2
 2350     0     0     0  DL      aiordy  0xfffffe00a74f1a70  [aiod4]
 2349     0     0     0  DL      aiordy  0xfffffe00a6c23000  [aiod3]
 2347     0     0     0  DL      aiordy  0xfffffe00a746fa70  [aiod2]
 2346     0     0     0  DL      aiordy  0xfffffe00a74f8538  [aiod1]
 2117     1  2117    65  Ss      select  0xfffffe00a778cd40  dhclient
 1742     1  1742     0  Ss      select  0xfffffe00a6c6a740  dhclient
 1739     1  1739     0  Ss      select  0xfffffe00a6ed58c0  dhclient
 1720     1  1720    65  Ss      select  0xfffffe00a6e1a140  dhclient
 1451     1  1451     0  Ss      select  0xfffffe00a6e1a3c0  dhclient
 1448     1  1448     0  Ss      select  0xfffffe00a6e1a340  dhclient
 1421     1  1421    65  Ss      select  0xfffffe00a6c6a0c0  dhclient
 1061     1  1061     0  Ss      select  0xfffffe00a6e1acc0  dhclient
 1058     1  1058     0  Ss      select  0xfffffe00a6e1a840  dhclient
  803   780   803     0  Rs                                  syz-executor.3
  794   780   794     0  Rs                                  syz-executor.2
  783   780   783     0  Rs                                  syz-executor.1
  780   778   778     0  R       (threaded)                  syz-fuzzer
100125                   S       uwait   0xfffffe009e4e3d80  syz-fuzzer
100126                   S       nanslp  0xffffffff84059200  syz-fuzzer
100127                   S       uwait   0xfffffe009e4e3880  syz-fuzzer
100128                   S       uwait   0xfffffe009e4e3980  syz-fuzzer
100129                   S       uwait   0xfffffe009e3f8780  syz-fuzzer
100130                   S       uwait   0xfffffe009e4e3e80  syz-fuzzer
100131                   RunQ                                syz-fuzzer
100132                   S       uwait   0xfffffe009e449100  syz-fuzzer
100133                   RunQ                                syz-fuzzer
  778   776   778     0  Ss      pause   0xfffffe0095d380b0  csh
  776   694   776     0  Ss      select  0xfffffe009e2f31c0  sshd
  760     1   760     0  Rs+                                 getty
  759     1   759     0  Ss+     ttyin   0xfffffe00575f24b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00575f28b0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00575f2cb0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00583b70b0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00583b74b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00583b78b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00583b7cb0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe00574770b0  getty
  698     1   698     0  Ss      nanslp  0xffffffff84059200  cron
  694     1   694     0  Ss      select  0xfffffe009e3f8d40  sshd
  507     1   507     0  Ss      select  0xfffffe009e449440  syslogd
  436     1   436     0  Ss      select  0xfffffe009e3f8dc0  devd
  435     1   435    65  Ss      select  0xfffffe009e3f8f40  dhclient
  350     1   350     0  Ss      select  0xfffffe009e2f3240  dhclient
  347     1   347     0  Ss      select  0xfffffe0095c84040  dhclient
   23     0     0     0  RL                                  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe0058537538  [vnlru]
   21     0     0     0  RL      (threaded)                  [bufdaemon]
100085                   RunQ                                [bufdaemon]
100088                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100101                   RunQ                                [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841b77c0  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100083                   D       psleep  0xffffffff841ab2f8  [dom0]
100089                   D       launds  0xffffffff841ab304  [laundry: dom0]
100090                   D       umarcl  0xffffffff81ea1910  [uma]
   18     0     0     0  DL      -       0xffffffff83e10320  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff84b644a0  [sctp_iterator]
   16     0     0     0  RL                                  [pf purge]
   15     0     0     0  DL      -       0xffffffff8417a4c0  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8417a4c0  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8417a4c0  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8417a4c0  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100048                   D       -       0xffffffff83c95ac0  [doneq0]
100049                   D       -       0xffffffff83c95a40  [async]
100082                   D       -       0xffffffff83c958c0  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056aba888  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe0053c0cc80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe0053c0cc30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff841a53a0  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100039                   D       -       0xffffffff8402c7c0  [g_event]
100040                   D       -       0xffffffff8402c800  [g_up]
100041                   D       -       0xffffffff8402c840  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100029                   D       -       0xfffffe0053dff000  [thr_0]
100030                   D       -       0xfffffe0053dff080  [thr_1]
100031                   D       -       0xffffffff8417b848  [alloc_0]
   12     0     0     0  RL      (threaded)                  [intr]
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100019                   I                                   [swi6: task queue]
100032                   I                                   [swi3: vm]
100033                   L      *kernel  0xfffffe00a8ac39c0  [swi1: netisr 0]
100034                   Run     CPU 0                       [swi4: clock (0)]
100035                   I                                   [swi4: clock (1)]
100036                   I                                   [swi1: hpts]
100037                   I                                   [swi1: hpts]
100050                   I                                   [irq24: virtio_pci0]
100051                   I                                   [irq25: virtio_pci0]
100052                   I                                   [irq26: virtio_pci0]
100053                   I                                   [irq27: virtio_pci0]
100054                   I                                   [irq28: virtio_pci1]
100055                   I                                   [irq29: virtio_pci1]
100056                   I                                   [irq30: virtio_pci1]
100057                   I                                   [irq31: virtio_pci1]
100058                   I                                   [irq32: virtio_pci1]
100063                   I                                   [irq10: virtio_pci2]
100065                   I                                   [irq1: atkbd0]
100066                   I                                   [irq12: psm0]
100067                   I                                   [swi0: uart uart++]
100075                   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    0xfffffe0053d54538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841a6340  [audit]
    0     0     0     0  RLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8402d6c0  [swapper]
100005                   D       -       0xfffffe0053df0e00  [if_config_tqg_0]
100006                   D       -       0xfffffe0053df0d00  [softirq_0]
100007                   D       -       0xfffffe0053df0c00  [softirq_1]
100008                   D       -       0xfffffe0053df0b00  [if_io_tqg_0]
100009                   D       -       0xfffffe0053df0a00  [if_io_tqg_1]
100010                   D       -       0xfffffe0053c07c00  [in6m_free taskq]
100011                   D       -       0xfffffe0053c07b00  [deferred_unmount ta]
100013                   Run     CPU 1                       [thread taskq]
100015                   D       -       0xfffffe0053c07700  [kqueue_ctx taskq]
100016                   D       -       0xfffffe0053c07600  [linuxkpi_irq_wq]
100017                   D       -       0xfffffe0053c07500  [pci_hp taskq]
100018                   D       -       0xfffffe0053c07400  [aiod_kick taskq]
100020                   D       -       0xfffffe0053c07200  [inm_free taskq]
100021                   D       -       0xfffffe0053c07100  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053c07100  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053c07100  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053c07100  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053c07000  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053c07000  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053c07000  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053c07000  [linuxkpi_long_wq_3]
100038                   D       -       0xfffffe0054189e00  [firmware taskq]
100042                   D       -       0xfffffe0054189d00  [crypto_0]
100043                   D       -       0xfffffe0054189d00  [crypto_1]
100059                   D       -       0xfffffe0054189900  [vtnet0 rxq 0]
100060                   D       -       0xfffffe0054189800  [vtnet0 txq 0]
100061                   D       -       0xfffffe0054189700  [vtnet0 rxq 1]
100062                   D       -       0xfffffe0054189600  [vtnet0 txq 1]
100064                   D       vtbslp  0xfffffe0056b1fa00  [virtio_balloon]
100068                   D       -       0xfffffe0054189400  [mca taskq]
100073                   D       -       0xffffffff82c71bc0  [deadlkres]
100077                   D       -       0xfffffe0058344b00  [acpi_task_0]
100078                   D       -       0xfffffe0058344b00  [acpi_task_1]
100079                   D       -       0xfffffe0058344b00  [acpi_task_2]
100081                   D       -       0xfffffe0054189a00  [CAM taskq]
db> show all locks
Process 9227 (syz-executor.2) thread 0xfffffe00a8b983a0 (111938)
exclusive sx vm map (user) (vm map (user)) r = 0 (0xfffffe00a8be2060) locked @ /syzkaller/managers/i386/kernel/sys/vm/vm_map.c:2127
Process 4712 (syz-executor.0) thread 0xfffffe00a89d2c80 (103928)
exclusive sx vm map (user) (vm map (user)) r = 0 (0xfffffe00a8bfba50) locked @ /syzkaller/managers/i386/kernel/sys/vm/vm_map.c:4272
exclusive sx vm map (user) (vm map (user)) r = 0 (0xfffffe009e43c060) locked @ /syzkaller/managers/i386/kernel/sys/vm/vm_map.c:4268
Process 12 (intr) thread 0xfffffe0053e04900 (100033)
exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffffe00a79a3488) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_input.c:4905
Process 12 (intr) thread 0xfffffe0053e2c1e0 (100034)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe00a7d55a90) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctputil.c:1768
Process 0 (kernel) thread 0xfffffe0053df9ac0 (100013)
exclusive sleep mutex kernel arena domain (kernel arena domain) r = 0 (0xfffff800064cb000) locked @ /syzkaller/managers/i386/kernel/sys/kern/subr_vmem.c:789
exclusive sleep mutex vmem list lock (vmem list lock) r = 0 (0xffffffff83409bc0) locked @ /syzkaller/managers/i386/kernel/sys/kern/subr_vmem.c:784
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4217         4339K         4245
          tcp_hpts            6         3201K            6
         sysctloid        34389         2031K        34460
             vtbuf           24         1968K           46
          filedesc          184         1467K        16456
              kobj          327         1308K          486
            newblk           19         1029K        23962
          vfscache            3         1025K            3
               pcb          340          872K        21313
           subproc          307          659K         9389
          inodedep           23          521K         9395
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
              vmem            3          274K            5
            acpica         1674          184K        55620
         vnet_data            1          168K            1
           tidhash            3          141K            3
            linker          356          140K          450
           pagedep           23          134K         8392
        tfo_ccache            1          128K            1
            DEVFS1          108          108K          125
         sctp_atcl          287          108K        14087
               sem            4          106K            4
         sctp_stro           90           90K         4157
               BPF           46           88K           84
               bus          989           81K         3488
          mtx_pool            2           72K            2
           kdtrace          388           69K        21240
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          510           64K          510
              umtx          506           64K          506
               shm            3           36K           22
              temp           36           35K         4307
         hostcache            1           32K            1
            DEVFS3          127           32K          137
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
          routetbl          196           21K          838
            ifaddr           71           21K           76
        DEVFS_RULE           56           20K           56
         sctp_stri           35           18K          728
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
         sctp_atky          377           16K        18920
           lltable           49           16K          434
            bus-sc           34           15K         1691
            KTRACE          103           13K        23441
       ether_multi          157           13K          213
             ifnet            7           13K            7
              ksem           31           12K          221
            kqueue          152           12K         9330
              kenv           95           12K           95
      eventhandler          133           12K          133
         CAM queue            5           11K         1528
              GEOM           61           10K          490
              rman           84           10K          425
           pwddesc          150           10K         9305
         in6_multi           71            9K           81
         sctp_timw           34            9K           34
         bmsafemap            3            9K         9434
              UART           12            9K           12
           devstat            4            9K            4
               rpc            2            8K            2
             shmfd            1            8K           67
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          295
              cred           28            7K          482
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           24            6K          613
          pf_ifnet           14            6K           92
            DEVFSP           80            5K         1973
       ufs_dirhash           24            5K           24
         sctp_athm          287            5K        14405
               UMA          270            5K          270
           session           35            5K           75
                vt           11            5K           11
          pf_table            2            4K           63
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           85
             lockf           33            4K          268
            dirrem           14            4K         8917
           acpisem           28            4K           28
             hhook           15            4K           17
             selfd           52            4K       119103
          sctp_map          180            3K         8242
         proc-args           52            3K          768
          terminal           11            3K           11
            select           19            3K          224
           uidinfo            4            3K           54
         newdirblk           18            3K         8260
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
          sctp_ifa           15            2K           17
            ip6ndp           12            2K           16
            Unitno           29            2K           77
           CAM XPT           22            2K          543
          in_multi            6            2K           18
           pf_osfp           12            2K           12
       inpcbpolicy           41            2K         4164
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K          372
      NFSD session            1            1K            1
           tcp_fsb            7            1K          844
        CAM periph            4            1K          271
             sigio           13            1K           15
             ipsec            3            1K            3
          sctp_ifn            6            1K           17
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
            crypto            4            1K          575
 encap_export_host           12            1K           12
          procdesc            5            1K           16
               osd           16            1K         3197
             mkdir            4            1K        16520
            diradd            4            1K         8959
              pfil            4            1K            4
              cdev            2            1K            2
        ip_msource            6            1K           45
    chacha20random            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            vnodes            1            1K           35
           CAM SIM            2            1K            2
              ktls            1            1K            1
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K           12
            prison            6            1K            6
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
           pf_rule            1            1K          115
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
             xform            2            1K         2590
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          pmchooks            1            1K            1
            soname            4            1K        15537
          filecaps            5            1K          118
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           51
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          freework            1            1K        14584
          p1003.1b            1            1K            1
            mqdata            0            0K            0
            tcp_do            0            0K            0
        dctcp data            0            0K           45
         htcp data            0            0K           31
        cubic data            0            0K           25
        vegas data            0            0K           25
        sctp_mcore            0            0K            0
        sctp_socko            0            0K         7001
         sctp_iter            0            0K           28
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K           12
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K           16
         sctp_aadr            0            0K           51
          chd data            0            0K           37
          cdg data            0            0K           35
           pf_altq            0            0K            0
           pf_temp            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
         NFSCL lck            0            0K            0
      NFSCL lckown            0            0K            0
      NFSCL client            0            0K            0
       NFSCL deleg            0            0K            0
        NFSCL open            0            0K            0
       NFSCL owner            0            0K            0
            NFS fh            0            0K            0
           NFS req            0            0K            0
              iavf            0            0K            0
               ixl            0            0K            0
     NFSD usrgroup            0            0K            0
       NFSD string            0            0K            0
       NFSD V4lock            0            0K            0
      NFSD V4state            0            0K            0
     NFSD srvcache            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
             axgbe            0            0K            0
       msdosfs_fat            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
            DEVFS4            0            0K            0
            DEVFS2            0            0K            0
          xen_intr            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
         ciss_data            0            0K            0
         BACKLIGHT            0            0K            0
               xnb            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
              xbbd            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
               xbd            0            0K            0
           Balloon            0            0K            0
          sysmouse            0            0K            0
     vm_fictitious            0            0K            0
            vtfont            0            0K            0
           ath_hal            0            0K            0
            athdev            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
               amr            0            0K            0
            pvscsi            0            0K            0
           scsi_da            0            0K           69
           UMAHash            0            0K            0
            ata_da            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K         8369
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K          184
           jsegdep            0            0K            0
              jseg            0            0K            0
         jfreefrag            0            0K            0
          jfreeblk            0            0K            0
           jnewblk            0            0K            0
            jmvref            0            0K            0
           jremref            0            0K            0
           jaddref            0            0K            0
           freedep            0            0K            0
          freefile            0            0K         8838
          freeblks            0            0K         9022
          freefrag            0            0K           23
        allocindir            0            0K            0
          indirdep            0            0K         6697
       allocdirect            0            0K            0
          ufs_trim            0            0K            0
           mactemp            0            0K            0
     audit_trigger            0            0K            0
 audit_pipe_presel            0            0K            0
     audit_pipeent            0            0K            0
        audit_pipe            0            0K            0
      audit_evname            0            0K            0
         audit_bsm            0            0K            0
      audit_gidset            0            0K            0
        audit_text            0            0K            0
        audit_path            0            0K            0
        audit_data            0            0K            0
        audit_cred            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
       AHCI driver            0            0K            0
            USBdev            0            0K            0
               USB            0            0K            0
               agp            0            0K            0
           nvme_da            0            0K            0
          ktls_ocf            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
         MLX5E_TLS            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
            MLX5EN            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
          MLX5DUMP            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
          seq_file            0            0K            0
             radix            0            0K            0
               idr            0            0K            0
            lkpifw            0            0K            0
               NLM            0            0K            0
    ipsec-spdcache            0            0K            0
         ipsec-reg            0            0K            0
        ipsec-misc            0            0K            0
      ipsecrequest            0            0K            0
            ip6opt            0            0K          116
       ip6_msource            0            0K            0
      ip6_moptions            0            0K            5
       in6_mfilter            0            0K            0
             frag6            0            0K            0
            tcplog            0            0K            0
        tcp_hwpace            0            0K            0
           acpipwr            0            0K            0
         acpi_perf            0            0K            0
               LRO            0            0K            0
      newreno data            0            0K            0
       ip_moptions            0            0K           72
        in_mfilter            0            0K          170
              ipid            0            0K            0
         80211scan            0            0K            0
      80211ratectl            0            0K            0
        80211power            0            0K            0
       80211nodeie            0            0K            0
         80211node            0            0K            0
      80211mesh_gt            0            0K            0
      80211mesh_rt            0            0K            0
         80211perr            0            0K            0
         80211prep            0            0K            0
         80211preq            0            0K            0
          80211dfs            0            0K            0
       80211crypto            0            0K            0
          80211vap            0            0K            0
             iflib            0            0K            0
              vlan            0            0K            0
               gif            0            0K            0
           ifdescr            0            0K            0
              zlib            0            0K            0
           fadvise            0            0K            0
           VN POLL            0            0K            9
            twsbuf            0            0K            0
            statfs            0            0K         8504
     namei_tracker            0            0K            0
       export_host            0            0K            0
        cl_savebuf            0            0K            5
      twe_commands            0            0K            0
      twa_commands            0            0K            0
       tcp_log_dev            0            0K          444
      midi buffers            0            0K            0
             mixer            0            0K            0
              ac97            0            0K            0
             hdacc            0            0K            0
              hdac            0            0K            0
              hdaa            0            0K            0
         acpicmbat            0            0K            0
       SIIS driver            0            0K            0
           CAM CCB            0            0K          523
               PUC            0            0K            0
          ppbusdev            0            0K            0
agtiapi_MemAlloc malloc            0            0K            0
            biobuf            0            0K            0
              aios            0            0K           42
               lio            0            0K            0
               acl            0            0K            0
    osti_cacheable            0            0K            0
          mbuf_tag            0            0K          339
          tempbuff            0            0K            0
          tempbuff            0            0K            0
ag_tgt_map_t malloc            0            0K            0
ag_slr_map_t malloc            0            0K            0
lDevFlags * malloc            0            0K            0
tiDeviceHandle_t * malloc            0            0K            0
ag_portal_data_t malloc            0            0K            0
ag_device_t malloc            0            0K            0
     STLock malloc            0            0K            0
          CCB List            0            0K            0
            sr_iov            0            0K            0
               OCS            0            0K            0
               OCS            0            0K            0
              nvme            0            0K            0
               nvd            0            0K            0
            netmap            0            0K            0
            mwldev            0            0K            0
        MVS driver            0            0K            0
     CAM ccb queue            0            0K            0
          mrsasbuf            0            0K            0
          mpt_user            0            0K            0
          mps_user            0            0K            0
              accf            0            0K            0
               pts            0            0K            0
               iov            0            0K        22639
          ioctlops            0            0K          727
           eventfd            0            0K           24
           Witness            0            0K            0
             stack            0            0K            0
            MPSSAS            0            0K            0
               mps            0            0K            0
          mpr_user            0            0K            0
            MPRSAS            0            0K            0
               mpr            0            0K            0
            mfibuf            0            0K            0
              sbuf            0            0K          288
        md_sectors            0            0K            0
          firmware            0            0K            0
        compressor            0            0K            0
           md_disk            0            0K            0
              SWAP            0            0K            0
           malodev            0            0K            0
               LED            0            0K            0
         sysctltmp            0            0K         1142
            sysctl            0            0K            3
              ekcd            0            0K            0
            dumper            0            0K            0
          sendfile            0            0K            0
              rctl            0            0K            0
          ix_sriov            0            0K            0
        aacraidcam            0            0K            0
       aacraid_buf            0            0K            0
                ix            0            0K            0
            ipsbuf            0            0K            0
             cache            0            0K            0
            iirbuf            0            0K            0
      prison_racct            0            0K            0
       Fail Points            0            0K            0
filedesc_to_leader            0            0K            4
               pwd            0            0K            0
       tty console            0            0K            0
            aaccam            0            0K            0
            aacbuf            0            0K            0
              zstd            0            0K            0
            XZ_DEC            0            0K            0
            nvlist            0            0K            0
          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
         scsi_pass            0            0K            0
        isofs_node            0            0K            0
       isofs_mount            0            0K            0
     tr_raid5_data            0            0K            0
    tr_raid1e_data            0            0K            0
     tr_raid1_data            0            0K            0
     tr_raid0_data            0            0K            0
    tr_concat_data            0            0K            0
       md_sii_data            0            0K            0
   md_promise_data            0            0K            0
    md_nvidia_data            0            0K            0
   md_jmicron_data            0            0K            0
     md_intel_data            0            0K            0
       md_ddf_data            0            0K            0
         raid_data            0            0K           72
     geom_flashmap            0            0K            0
         tmpfs dir            0            0K            0
        tmpfs name            0            0K            0
       tmpfs mount            0            0K            0
           NFS FHA            0            0K            0
         newnfsmnt            0            0K            0
  newnfsclient_req            0            0K            0
   NFSCL layrecall            0            0K            0
     NFSCL session            0            0K            0
     NFSCL sockreq            0            0K            0
     NFSCL devinfo            0            0K            0
     NFSCL flayout            0            0K            0
      NFSCL layout            0            0K            0
     NFSD rollback            0            0K            0
      NFSCL diroff            0            0K            0
db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8325     964      186484       0     254   38047744        0
           tcp_log    416       0   20007      729491       0     254    8322912        0
              mbuf    256    9003    1857     3439897       0     254    2780160        0
              pbuf   2624       0     957           0       0       2    2511168        0
       malloc-4096   4096     478       1        9745       0       2    1961984        0
    ertt_txseginfo     40       0   45147     2304839       0     254    1805880        0
          BUF TRIE    144     191   11569       16054       0      62    1693440        0
        malloc-128    128   12321     358       21587       0     126    1622912        0
        malloc-384    384    4162      18        4175       0      30    1605120        0
      malloc-16384  16384      91       2        8385       0       1    1523712        0
      mbuf_cluster   2048     690       0         690       0     254    1413120        0
        RADIX NODE    144    8866     145      241776       0      62    1297584        0
       UMA Slabs 0    112   10952      25       10952       0     126    1229424        0
         vmem btag     56   20645      66       20645       0     254    1159816        0
       tcp_bbr_map    128       0    7223      550909       0     126     924544        0
        256 Bucket   2048     419      21       26100       0       8     901120        0
         FFS inode   1160     586      23        9470       0       8     706440        0
         VM OBJECT    264    2333      37      135523       0      30     625680        0
         MAP ENTRY     96    6197      61      542748       0     126     600768        0
            THREAD   1808     236      17       12010       0       8     457424        0
         sctp_asoc   2288      90     100        4121       0     254     434720        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
           sctp_ep   1280     163     119        9480       0     254     360960        0
           VMSPACE   2544     124       5        9209       0       4     328176        0
             VNODE    448     625      77        9511       0      30     314496        0
       malloc-2048   2048     149       3        9514       0       8     311296        0
      malloc-32768  32768       2       7        6149       0       2     294912        0
            socket    944     171     117       15193       0     254     271872        0
         malloc-64     64    4157      64       22537       0     254     270144        0
      malloc-65536  65536       4       0           4       0       1     262144        0
      malloc-65536  65536       1       3         228       0       1     262144        0
         malloc-16     16   14031     219       17281       0     254     228000        0
            DEVCTL   1024       0     220         164       0       0     225280        0
              PROC   1336     150       6        9228       0       8     208416        0
       malloc-4096   4096      42       4          80       0       2     188416        0
         UMA Zones    768     242       2         242       0      16     187392        0
         malloc-32     32    5303     367        6436       0     254     181440        0
        sctp_raddr    736     182      60        4788       0     254     178112        0
       mbuf_packet    256      88     602       40747       0     254     176640        0
         filedesc0   1072     150      11        9305       0       8     172592        0
        malloc-384    384      22     418        9494       0      30     168960        0
        malloc-256    256     102     543       32977       0      62     165120        0
       FFS2 dinode    256     586      44        9470       0      62     161280        0
        malloc-128    128    1191      49       27034       0     126     158720        0
        128 Bucket   1024     112      35        5467       0      16     150528        0
        malloc-384    384     367      23       14552       0      30     149760        0
       S VFS Cache    104    1032     333       10125       0     126     141960        0
        malloc-256    256     189     351       33672       0      62     138240        0
       malloc-1024   1024      92      40        4141       0      16     135168        0
      malloc-65536  65536       0       2         666       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2           5       0       1     131072        0
         tcp_inpcb    496      14     242        3186       0     254     126976        0
       malloc-1024   1024     118       6         136       0      16     126976        0
        malloc-256    256     158     337        9333       0      62     126720        0
            clpbuf   2624       0      48         243       0      16     125952        0
        sctp_chunk    152     142     638        2916       0     254     118560        0
          ksiginfo    112     141     903        1014       0     126     116928        0
             tcpcb   1080      12      93        3186       0     254     113400        0
        malloc-256    256     270     120       12068       0      62      99840        0
          UMA Kegs    384     227       6         227       0      30      89472        0
       malloc-8192   8192       7       3          35       0       1      81920        0
         64 Bucket    512      89      71       10667       0      30      81920        0
             g_bio    408       0     170      114846       0      30      69360        0
        malloc-384    384     164      16         346       0      30      69120        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       0       2         130       0       1      65536        0
       malloc-2048   2048      10      22        1323       0       8      65536        0
        malloc-128    128     360     105        9027       0     126      59520        0
        malloc-256    256      69     141       10772       0      62      53760        0
         32 Bucket    256      70     140        9008       0      62      53760        0
         malloc-64     64     535     284      120241       0     254      52416        0
        malloc-256    256      62     133       10756       0      62      49920        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-8192   8192       6       0           6       0       1      49152        0
        malloc-128    128      95     277       18060       0     126      47616        0
       malloc-1024   1024       6      38        2046       0      16      45056        0
            pcpu-8      8    4791     841        7394       0     254      45056        0
         malloc-64     64     537     156        3682       0     254      44352        0
             Files     80     396     154       36142       0     126      44000        0
           DIRHASH   1024      34       6          34       0      16      40960        0
       malloc-8192   8192       4       1           6       0       1      40960        0
      tcp_rack_pcb    832       7      38         844       0      16      37440        0
         TURNSTILE    136     254      19         254       0      62      37128        0
             NAMEI   1024       0      36       55016       0      16      36864        0
         malloc-64     64     395     172       20704       0     254      36288        0
         malloc-64     64     251     316       10095       0     254      36288        0
            da_ccb    544       0      63       29060       0      16      34272        0
              pipe    744      23      22         737       0      16      33480        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       2       0          17       0       1      32768        0
      malloc-16384  16384       2       0           2       0       1      32768        0
       malloc-8192   8192       2       2         107       0       1      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
         16 Bucket    144      78     146        1591       0      62      32256        0
        malloc-256    256      69      51        1682       0      62      30720        0
        malloc-256    256      83      37        1007       0      62      30720        0
       tcp_bbr_pcb    832       0      36        1542       0      16      29952        0
       malloc-4096   4096       4       3         639       0       2      28672        0
       malloc-2048   2048       9       5          70       0       8      28672        0
       malloc-1024   1024      19       9          56       0      16      28672        0
               PWD     32      84     798        8263       0     254      28224        0
             KNOTE    160      28     147       77546       0      62      28000        0
        malloc-128    128     117     100        9413       0     126      27776        0
        SLEEPQUEUE     88     254      34         254       0     126      25344        0
       malloc-2048   2048       7       5          15       0       8      24576        0
       malloc-1024   1024      18       6         124       0      16      24576        0
        malloc-512    512      43       5         808       0      30      24576        0
         malloc-64     64     174     204        5016       0     254      24192        0
         malloc-32     32     331     425       14537       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
        malloc-128    128     141      45         663       0     126      23808        0
           ttyoutq    256      72      18         160       0      62      23040        0
       malloc-2048   2048       7       3          34       0       8      20480        0
          2 Bucket     32      60     570        2187       0     254      20160        0
     udplite_inpcb    496      15      25         258       0     254      19840        0
        malloc-128    128      68      87        4009       0     126      19840        0
       Mountpoints   2752       2       5           2       0       4      19264        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       3       1           6       0       2      16384        0
       malloc-4096   4096       1       3        8505       0       2      16384        0
       malloc-2048   2048       4       4          98       0       8      16384        0
        malloc-512    512      15      17          63       0      30      16384        0
      tcp_rack_map    112       0     144        1697       0     126      16128        0
         malloc-32     32      49     455         692       0     254      16128        0
         malloc-32     32     388     116        9814       0     254      16128        0
      vtnet_tx_hdr     24       0     668     1455494       0     254      16032        0
         malloc-16     16     454     546        8628       0     254      16000        0
          8 Bucket     80      44     156        3218       0     126      16000        0
             ripcb    496       5      27         298       0     254      15872        0
         udp_inpcb    496       7      25         422       0     254      15872        0
        malloc-128    128      86      38         188       0     126      15872        0
        malloc-384    384      25      15          83       0      30      15360        0
       malloc-2048   2048       1       5         618       0       8      12288        0
        malloc-512    512       1      23         119       0      30      12288        0
sctp_stream_msg_out    112      62      46        1070       0     254      12096        0
        sctp_laddr     48     143     109        2717       0     254      12096        0
              ertt     72      12     156        3186       0     126      12096        0
         malloc-32     32     128     250        6198       0     254      12096        0
         malloc-16     16     354     396       14931       0     254      12000        0
              kenv    258      15      30        1040       0      30      11610        0
     routing nhops    256      27      18          40       0      62      11520        0
             unpcb    256      20      25        1452       0     254      11520        0
        malloc-384    384      20      10         367       0      30      11520        0
       malloc-4096   4096       1       1           3       0       2       8192        0
       malloc-4096   4096       0       2           7       0       2       8192        0
       malloc-4096   4096       0       2         115       0       2       8192        0
       malloc-2048   2048       0       4          40       0       8       8192        0
       malloc-1024   1024       3       5         362       0      16       8192        0
       malloc-1024   1024       2       6          26       0      16       8192        0
        malloc-512    512       2      14         425       0      30       8192        0
        malloc-512    512       2      14          61       0      30       8192        0
        malloc-512    512       0      16          39       0      30       8192        0
        malloc-512    512       1      15          17       0      30       8192        0
           pf tags    104       0      78          28       0     126       8112        0
           rtentry    176      31      15          40       0      62       8096        0
             tcptw     88       0      92          19       0     254       8096        0
              PGRP     88      42      50          88       0     126       8096        0
          rl_entry     40     131      71         131       0     254       8080        0
   sctp_asconf_ack     48       0     168          17       0     254       8064        0
             udpcb     32      22     230         680       0     254       8064        0
              AIOP     32       4     248           4       0     254       8064        0
         malloc-64     64      78      48         135       0     254       8064        0
         malloc-64     64      15     111        6167       0     254       8064        0
         malloc-32     32      43     209         103       0     254       8064        0
         malloc-32     32     163      89        6657       0     254       8064        0
         malloc-32     32      87     165        7023       0     254       8064        0
          4 Bucket     48       5     163         207       0     254       8064        0
         malloc-16     16      22     478          81       0     254       8000        0
         malloc-16     16      51     449        9230       0     254       8000        0
         malloc-16     16     191     309        6593       0     254       8000        0
         malloc-16     16       9     491       12339       0     254       8000        0
         malloc-16     16      18     482       25552       0     254       8000        0
        sctp_readq    152      27      25         408       0     254       7904        0
               AIO    208       0      38          35       0      62       7904        0
           cryptop    280       0      28          79       0      30       7840        0
             AIOCB    552       0      14          39       0      16       7728        0
        malloc-384    384       1      19          46       0      30       7680        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       8      54          33       0     126       6448        0
         domainset     40       0     126          10       0     254       5040        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-1024   1024       2       2           2       0      16       4096        0
        malloc-512    512       1       7           1       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
          sackhole     32       0     126           2       0     254       4032        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
               ipq     56       0      72           1       0     254       4032        0
       UMA Slabs 1    176      10      12          10       0      62       3872        0
       L VFS Cache    320       0      12           1       0      30       3840        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
           SMR CPU     32       3      60           3       0     254       2016        0
        SMR SHARED     24       3      60           3       0     254       1512        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
       sctp_asconf     40       0       0           0       0     254          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      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    312       0       0           0       0     254          0        0
          pf mtags     48       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
          tcpreass     48       0       0           0       0     254          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
            itimer    352       0       0           0       0      30          0        0
            AIOLIO    272       0       0           0       0      30          0        0
        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    224       0       0           0       0      62          0        0
           NCLNODE    592       0       0           0       0      16          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
  linux_dma_object     24       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          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-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
        malloc-384    384       0       0           0       0      30          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (7):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/08/23 14:52 freebsd-src 72a92f91f466 b599f2fc console log report ci-freebsd-i386 panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/i386/kernel/sys/netinet/sctputil.c:LINE
2021/07/16 07:03 freebsd-src 5ede4fc06d84 f115ae98 console log report ci-freebsd-i386 panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/i386/kernel/sys/netinet/sctputil.c:LINE
2021/05/20 22:27 freebsd-src 787845c0e8e8 c560a65d console log report ci-freebsd-i386 panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/i386/kernel/sys/netinet/sctputil.c:LINE
2021/04/29 05:26 freebsd-src fdbcd35a75e5 77e2b668 console log report ci-freebsd-i386 panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/i386/kernel/sys/netinet/sctputil.c:LINE
2021/03/26 14:29 freebsd-src b6fd00791f2b a8529b82 console log report ci-freebsd-i386 panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/i386/kernel/sys/netinet/sctputil.c:LINE
2021/02/17 10:41 freebsd-src 3396647c8dc4 052f8d9f console log report ci-freebsd-i386 panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/i386/kernel/sys/netinet/sctputil.c:LINE
2021/01/16 15:22 freebsd-src 79a5c790bdf0 65a7a854 console log report ci-freebsd-i386
* Struck through repros no longer work on HEAD.