syzbot


panic: ASan: Invalid access, NUM-byte read in sctp_free_assoc

Status: auto-closed as invalid on 2022/02/10 06:22
Reported-by: syzbot+4b226a4b200c15711b31@syzkaller.appspotmail.com
First crash: 997d, last: 926d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd panic: ASan: Invalid access, 8-byte read in sctp_free_assoc 112 998d 1050d 2/2 fixed on 2021/09/01 18:06

Sample crash report:
panic: ASan: Invalid access, 8-byte read at 0xfffffe009ec51140, UMAUseAfterFree(fd)
cpuid = 1
time = 1630535626
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe0053b5a730
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe0053b5a890
vpanic() at vpanic+0x2c5/frame 0xfffffe0053b5a970
panic() at panic+0xb5/frame 0xfffffe0053b5aa30
__asan_load8_noabort() at __asan_load8_noabort+0x376/frame 0xfffffe0053b5aaf0
sctp_free_assoc() at sctp_free_assoc+0x3908/frame 0xfffffe0053b5ac30
sctp_process_control() at sctp_process_control+0x7a2f/frame 0xfffffe0053b5b300
sctp_common_input_processing() at sctp_common_input_processing+0xb26/frame 0xfffffe0053b5b560
sctp6_input_with_port() at sctp6_input_with_port+0x5a1/frame 0xfffffe0053b5b730
sctp6_input() at sctp6_input+0x1f/frame 0xfffffe0053b5b750
ip6_input() at ip6_input+0x252d/frame 0xfffffe0053b5b9b0
swi_net() at swi_net+0x2e5/frame 0xfffffe0053b5ba50
ithread_loop() at ithread_loop+0x4f1/frame 0xfffffe0053b5bbb0
fork_exit() at fork_exit+0xd0/frame 0xfffffe0053b5bbf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0053b5bbf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100034 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28e340a(%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         0x59887dae5a9a1072
rdx                        0x1
rbx                          0
rsp         0xfffffe0053b5a870
rbp         0xfffffe0053b5a890
rsi                          0
rdi         0xffffffff817b7579  vprintf+0x319
r8                         0x3
r9          0xfffffe0053b5a3a8
r10                          0
r11                       0xbf
r12         0xfffffe0053e261e0
r13         0xfffffe0053b5a801
r14         0xffffffff82c754c0  .str.18
r15         0xffffffff82c754c0  .str.18
rip         0xffffffff817aaf2b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28e340a(%rip)
db> show proc
Process 12 (intr) at 0xfffffe0053df1a70:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff8402f6c0
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff8402f6c0 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff84030640
   (map 0xffffffff84030640)
   (map.pmap 0xffffffff84030700)
   (pmap 0xffffffff84030760)
 threads: 23
100012                   I                                   [swi6: task queue]
100013                   I                                   [swi6: Giant taskq]
100015                   I                                   [swi5: fast taskq]
100032                   I                                   [swi4: clock (0)]
100033                   I                                   [swi4: clock (1)]
100034                   Run     CPU 1                       [swi1: netisr 0]
100035                   I                                   [swi3: vm]
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
 7450   824   824     0  RE                                  syz-executor.3
 7352     1   792     0  S       uwait   0xfffffe00a7d16080  syz-executor.1
 7340     1   792     0  S       uwait   0xfffffe009eabec00  syz-executor.1
 7338     1   792     0  S       uwait   0xfffffe00a7c97a80  syz-executor.1
 7336     1   792     0  S       uwait   0xfffffe009eada100  syz-executor.1
 7335     1   792     0  S       uwait   0xfffffe00a7c97100  syz-executor.1
 3861     1   824     0  S       uwait   0xfffffe009eada000  syz-executor.3
 3859     1   824     0  S       uwait   0xfffffe00a7c97400  syz-executor.3
 3828     1   792     0  S       uwait   0xfffffe009e44b600  syz-executor.1
 3823     1   806     0  S       uwait   0xfffffe00a7c97980  syz-executor.2
 3815     1   824     0  S       uwait   0xfffffe009eadaa80  syz-executor.3
 3814     1   792     0  S       uwait   0xfffffe00a7d16380  syz-executor.1
 3809     1   806     0  S       uwait   0xfffffe009eadaa00  syz-executor.2
 3805     1   792     0  S       uwait   0xfffffe009ea64800  syz-executor.1
 3804     1   824     0  S       uwait   0xfffffe009eabe800  syz-executor.3
 3798     1   806     0  S       uwait   0xfffffe00a7c97000  syz-executor.2
 3792     1   824     0  S       uwait   0xfffffe00a7d16480  syz-executor.3
 3786     1   824     0  S       uwait   0xfffffe00a7c97300  syz-executor.3
 3779     1   824     0  S       uwait   0xfffffe00a7d16d80  syz-executor.3
 2467     1   791     0  S       uwait   0xfffffe00a7d16b80  syz-executor.0
 2466     1   791     0  S       uwait   0xfffffe00a7d16280  syz-executor.0
 2386     1   792     0  S       uwait   0xfffffe009eabe700  syz-executor.1
 2385     1   792     0  S       uwait   0xfffffe0056fff080  syz-executor.1
 2272     1   806     0  S       uwait   0xfffffe009eada680  syz-executor.2
 2271     1   806     0  S       uwait   0xfffffe00a7c97780  syz-executor.2
 2009     1  2009    65  Ss      select  0xfffffe0056b8b7c0  dhclient
 1918     0     0     0  DL      aiordy  0xfffffe00a7c58000  [aiod4]
 1917     0     0     0  DL      aiordy  0xfffffe00a7c3da70  [aiod3]
 1916     0     0     0  DL      aiordy  0xfffffe00a7ca5000  [aiod2]
 1915     0     0     0  DL      aiordy  0xfffffe00a7ce4a70  [aiod1]
 1709     1   791     0  S       uwait   0xfffffe009ea7c200  syz-executor.0
 1700     1   792     0  S       uwait   0xfffffe009eabe100  syz-executor.1
 1699     1   824     0  S       uwait   0xfffffe009e44b180  syz-executor.3
 1695     1   806     0  S       uwait   0xfffffe009ebaf900  syz-executor.2
 1692     1   792     0  S       uwait   0xfffffe009eadad80  syz-executor.1
 1691     1   791     0  S       uwait   0xfffffe009eada580  syz-executor.0
 1686     1   792     0  S       uwait   0xfffffe009ea64d00  syz-executor.1
 1681     1   824     0  S       uwait   0xfffffe009eabe900  syz-executor.3
 1679     1   791     0  S       uwait   0xfffffe009ea7c500  syz-executor.0
 1677     1   806     0  S       uwait   0xfffffe009ea7c400  syz-executor.2
 1672     1   791     0  S       uwait   0xfffffe009e44b080  syz-executor.0
 1671     1   806     0  S       uwait   0xfffffe009ea64f00  syz-executor.2
 1668     1   792     0  S       uwait   0xfffffe009eabe500  syz-executor.1
 1664     1   806     0  S       uwait   0xfffffe009eada980  syz-executor.2
 1663     1   791     0  S       uwait   0xfffffe009eabe600  syz-executor.0
 1657     1   824     0  S       uwait   0xfffffe009e9ff000  syz-executor.3
 1655     1   792     0  S       uwait   0xfffffe009ea64900  syz-executor.1
 1654     1   791     0  S       uwait   0xfffffe009ea64e00  syz-executor.0
 1652     1   806     0  S       uwait   0xfffffe009eadab80  syz-executor.2
 1646     1   792     0  S       uwait   0xfffffe009ea64b00  syz-executor.1
 1645     1   806     0  S       uwait   0xfffffe009ea64a00  syz-executor.2
 1636     1   824     0  S       uwait   0xfffffe009ebaf700  syz-executor.3
 1634     1   824     0  S       uwait   0xfffffe009ea7c300  syz-executor.3
 1629     1  1629     0  Ss      select  0xfffffe009ea9d940  dhclient
 1618     1  1618     0  Ss      select  0xfffffe0056b8e5c0  dhclient
 1599     1  1599    65  Ss      select  0xfffffe009ea9dd40  dhclient
 1505     1   806     0  S       uwait   0xfffffe009ea7c600  syz-executor.2
 1503     1   806     0  S       uwait   0xfffffe0056fd7400  syz-executor.2
 1501     1   806     0  S       uwait   0xfffffe0058b0ba00  syz-executor.2
 1498     1   806     0  S       uwait   0xfffffe009ebafe00  syz-executor.2
 1497     1   806     0  S       uwait   0xfffffe009eada880  syz-executor.2
 1398     1  1398     0  Ss      select  0xfffffe009ea9dac0  dhclient
 1395     1  1395     0  Ss      select  0xfffffe009ea9da40  dhclient
 1376     1  1376    65  Ss      select  0xfffffe009ea9dbc0  dhclient
 1134     1  1134     0  Ss      select  0xfffffe0056b8c9c0  dhclient
 1131     1  1131     0  Ss      select  0xfffffe009ea9de40  dhclient
 1095     1  1095    65  Ss      select  0xfffffe0056b8cbc0  dhclient
  862     1   792     0  S       uwait   0xfffffe009eadae80  syz-executor.1
  853     1   792     0  S       uwait   0xfffffe009e44bb00  syz-executor.1
  847     1   792     0  S       uwait   0xfffffe0058b0b180  syz-executor.1
  842     1   792     0  S       uwait   0xfffffe009ea64c00  syz-executor.1
  841     1   792     0  S       uwait   0xfffffe009e9ff980  syz-executor.1
  828     1   828     0  Ss      select  0xfffffe00574182c0  dhclient
  825     1   825     0  Ss      select  0xfffffe0057418440  dhclient
  824   788   824     0  Ss      wait    0xfffffe009e543a70  syz-executor.3
  806   788   806     0  Ss      piperd  0xfffffe009e9f52e8  syz-executor.2
  792   788   792     0  Ss      piperd  0xfffffe009e9db2e8  syz-executor.1
  791   788   791     0  Ss      piperd  0xfffffe009ea0b2e8  syz-executor.0
  788   786   786     0  S       (threaded)                  syz-fuzzer
100120                   S       uwait   0xfffffe009e44ba00  syz-fuzzer
100123                   S       uwait   0xfffffe009e9ffb80  syz-fuzzer
100124                   S       uwait   0xfffffe009e9ffc80  syz-fuzzer
100125                   S       uwait   0xfffffe009e9ffd80  syz-fuzzer
100126                   S       uwait   0xfffffe009e9ffe80  syz-fuzzer
100127                   S       uwait   0xfffffe0058b0b280  syz-fuzzer
100128                   S       uwait   0xfffffe009e9ff680  syz-fuzzer
100129                   S       uwait   0xfffffe009e9ff780  syz-fuzzer
100130                   S       kqread  0xfffffe005758d300  syz-fuzzer
102405                   S       uwait   0xfffffe00a7d16880  syz-fuzzer
102406                   S       uwait   0xfffffe009ebaf800  syz-fuzzer
  786   779   786     0  Ss      pause   0xfffffe009ea03b20  csh
  779   694   779     0  Ss      select  0xfffffe0056b8cb40  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe0056ff9cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe0058435cb0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00575fe0b0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00575fe4b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00575fe8b0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00575fecb0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00574810b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00574814b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe00574818b0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8405b201  cron
  694     1   694     0  Ss      select  0xfffffe0056b8cc40  sshd
  507     1   507     0  Rs                                  syslogd
  436     1   436     0  Ss      select  0xfffffe0056b8ce40  devd
  435     1   435    65  Ss      select  0xfffffe0057418ac0  dhclient
  350     1   350     0  Ss      select  0xfffffe00574188c0  dhclient
  347     1   347     0  Ss      select  0xfffffe0057418b40  dhclient
   23     0     0     0  DL      syncer  0xffffffff841835a0  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe0058539538  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100085                   D       qsleep  0xffffffff841812a0  [bufdaemon]
100088                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100099                   D       sdflush 0xfffffe0058898ce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841b97c0  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100083                   D       psleep  0xffffffff841ad2f8  [dom0]
100089                   D       launds  0xffffffff841ad304  [laundry: dom0]
100090                   D       umarcl  0xffffffff81eaa600  [uma]
   18     0     0     0  RL                                  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff84c52560  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff848cbe20  [pf purge]
   15     0     0     0  DL      -       0xffffffff8417c4c0  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8417c4c0  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8417c4c0  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8417c4c0  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100048                   D       -       0xffffffff83c97ac0  [doneq0]
100049                   D       -       0xffffffff83c97a40  [async]
100082                   D       -       0xffffffff83c978c0  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe000791a888  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe00541b1d80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe00541b1d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff841a73a0  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100039                   D       -       0xffffffff8402e7c0  [g_event]
100040                   D       -       0xffffffff8402e800  [g_up]
100041                   D       -       0xffffffff8402e840  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100029                   D       -       0xfffffe00081ecb00  [thr_0]
100030                   D       -       0xfffffe00081ecb80  [thr_1]
100031                   D       -       0xffffffff8417d848  [alloc_0]
   12     0     0     0  RL      (threaded)                  [intr]
100012                   I                                   [swi6: task queue]
100013                   I                                   [swi6: Giant taskq]
100015                   I                                   [swi5: fast taskq]
100032                   I                                   [swi4: clock (0)]
100033                   I                                   [swi4: clock (1)]
100034                   Run     CPU 1                       [swi1: netisr 0]
100035                   I                                   [swi3: vm]
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    0xfffffe0053d52538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841a8340  [audit]
    0     0     0     0  RLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8402f6c0  [swapper]
100005                   D       -       0xfffffe00081f4800  [if_config_tqg_0]
100006                   D       -       0xfffffe00081f4600  [softirq_0]
100007                   D       -       0xfffffe00081f4400  [softirq_1]
100008                   D       -       0xfffffe00081f4200  [if_io_tqg_0]
100009                   D       -       0xfffffe00081f4000  [if_io_tqg_1]
100010                   D       -       0xfffffe0053defd00  [in6m_free taskq]
100011                   D       -       0xfffffe0053defb00  [deferred_unmount ta]
100014                   Run     CPU 0                       [thread taskq]
100016                   D       -       0xfffffe0053def100  [linuxkpi_irq_wq]
100017                   D       -       0xfffffe0053df9e00  [kqueue_ctx taskq]
100018                   D       -       0xfffffe0053df9c00  [pci_hp taskq]
100019                   D       -       0xfffffe0053df9a00  [aiod_kick taskq]
100020                   D       -       0xfffffe0053df9800  [inm_free taskq]
100021                   D       -       0xfffffe0053df9600  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053df9600  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053df9600  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053df9600  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053df9100  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053df9100  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053df9100  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053df9100  [linuxkpi_long_wq_3]
100038                   D       -       0xfffffe0053e01200  [firmware taskq]
100042                   D       -       0xfffffe0054188c00  [crypto_0]
100043                   D       -       0xfffffe0054188c00  [crypto_1]
100059                   D       -       0xfffffe0056eacd00  [vtnet0 rxq 0]
100060                   D       -       0xfffffe0056eacc00  [vtnet0 txq 0]
100061                   D       -       0xfffffe0056eacb00  [vtnet0 rxq 1]
100062                   D       -       0xfffffe0056eaca00  [vtnet0 txq 1]
100064                   D       vtbslp  0xfffffe0056b8ce80  [virtio_balloon]
100068                   D       -       0xfffffe0056feba00  [mca taskq]
100073                   D       -       0xffffffff82c7c440  [deadlkres]
100078                   D       -       0xfffffe00573ec500  [acpi_task_0]
100079                   D       -       0xfffffe00573ec500  [acpi_task_1]
100080                   D       -       0xfffffe00573ec500  [acpi_task_2]
100081                   D       -       0xfffffe0054188500  [CAM taskq]
db> show all locks
Process 12 (intr) thread 0xfffffe0053e261e0 (100034)
exclusive sleep mutex sctp-send-tcb (tcbs) r = 0 (0xfffffe00a7d22ab0) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:4844
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe00a7d22a90) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:4843
exclusive rw sctp-info (sctp-info) r = 0 (0xfffffe00081b6428) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:4841
Process 0 (kernel) thread 0xfffffe0053df43a0 (100014)
exclusive sleep mutex kernel arena (kernel arena) r = 0 (0xffffffff840b1c80) locked @ /syzkaller/managers/main/kernel/sys/kern/subr_vmem.c:789
exclusive sleep mutex vmem list lock (vmem list lock) r = 0 (0xffffffff83409bc0) locked @ /syzkaller/managers/main/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
              kobj          327         1308K          486
            newblk           10         1027K        14542
          vfscache            3         1025K            3
               pcb          436          996K        20129
          filedesc          124          986K        12893
            linker          379          582K          467
           subproc          260          537K         7599
          inodedep           20          520K         7063
         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        55752
         vnet_data            1          168K            1
           tidhash            3          141K            3
           pagedep           14          132K         6505
        tfo_ccache            1          128K            1
            DEVFS1          108          108K          125
               sem            4          106K            4
         sctp_atcl          273          103K        13470
               BPF           46           88K           58
               bus          989           81K         3490
          mtx_pool            2           72K            2
          syncache            1           68K            1
         sctp_stro           65           65K         3792
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          511           64K          511
              umtx          506           64K          506
           kdtrace          340           63K        17873
              temp           35           33K         3277
         hostcache            1           32K            1
               shm            1           32K           52
            DEVFS3          127           32K          137
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
            ifaddr           70           20K           72
        DEVFS_RULE           56           20K           56
         ufs_mount            4           17K            5
              proc            3           17K            3
          routetbl          130           17K          502
               tty           16           16K           16
           lltable           50           16K          399
           ithread           99           16K           99
            bus-sc           34           15K         1693
         sctp_atky          341           14K        18034
            KTRACE          101           13K         1216
             ifnet            7           13K            7
       ether_multi          152           13K          162
              ksem           31           12K           92
              kenv           95           12K           95
      eventhandler          133           12K          133
         CAM queue            5           11K         1528
              GEOM           61           10K          489
              rman           84           10K          425
            kqueue          123           10K         7513
         in6_multi           65            9K           65
         bmsafemap            2            9K         7019
              UART           12            9K           12
           devstat            4            9K            4
         sctp_timw           32            8K           32
               rpc            2            8K            2
             shmfd            1            8K           60
       pfs_vncache            1            8K            1
            DEVFSP          125            8K         1089
         pfs_nodes           20            8K           20
           pwddesc          119            8K         7441
     audit_evclass          237            8K          295
              cred           28            7K          380
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           24            6K          643
       ufs_dirhash           24            5K           24
          pf_ifnet           11            5K           65
               UMA          270            5K          270
           session           35            5K           57
         sctp_athm          273            5K        13874
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           68
             lockf           33            4K          163
           acpisem           28            4K           28
             selfd           55            4K       109799
             hhook           15            4K           17
             xform           47            3K         1549
         proc-args           52            3K          737
          terminal           11            3K           11
           pf_osfp           21            3K           21
            select           19            3K          285
           uidinfo            4            3K           34
          sctp_map          130            3K         7520
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
            ip6ndp           12            2K           13
          sctp_ifa           13            2K           14
            Unitno           27            2K           71
           CAM XPT           22            2K          543
            dirrem            6            2K         6729
          in_multi            6            2K            8
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
       inpcbpolicy           38            2K         4161
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
         sctp_stri            2            1K          800
           softdep            1            1K            1
         newdirblk            8            1K         6410
            diradd            8            1K         6773
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K          442
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        CAM periph            4            1K          271
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             ipsec            3            1K            3
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
               osd           31            1K         2119
            isadev            6            1K            6
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            crypto            4            1K          417
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             mkdir            4            1K        12820
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          freefile            3            1K         6646
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             DEVFS            9            1K           10
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     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
       ip6_msource            2            1K            2
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filedesc_to_leader            2            1K           36
            soname            4            1K        13128
          filecaps            5            1K          140
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         sctp_aadr            1            1K           39
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          freework            1            1K         9074
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               USB            0            0K            0
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        MLX5EEPROM            0            0K            0
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               LRO            0            0K            0
      newreno data            0            0K            0
       ip_moptions            0            0K            7
        in_mfilter            0            0K           24
              ipid            0            0K            0
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       80211nodeie            0            0K            0
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              zlib            0            0K            0
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           VN POLL            0            0K            4
            twsbuf            0            0K            0
            statfs            0            0K         6669
     namei_tracker            0            0K            0
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       tcp_log_dev            0            0K          242
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          mbuf_tag            0            0K          199
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          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
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             stack            0            0K            0
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               mps            0            0K            0
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            MPRSAS            0            0K            0
               mpr            0            0K            0
            mfibuf            0            0K            0
              sbuf            0            0K          288
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        compressor            0            0K            0
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              SWAP            0            0K            0
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              rctl            0            0K            0
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                ix            0            0K            0
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             cache            0            0K            0
            iirbuf            0            0K            0
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       Fail Points            0            0K            0
             sigio            0            0K            1
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            aacbuf            0            0K            0
              zstd            0            0K            0
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           SCSI sa            0            0K            0
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        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    8775     680     1050657       0     254   38727680        0
           tcp_log    416       0   20007      523659       0     254    8322912        0
              mbuf    256    9921    2424     3301365       0     254    3160320        0
              pbuf   2624       0     957           0       0       2    2511168        0
        RADIX NODE    144   14761    1670      223359       0      62    2366064        0
          BUF TRIE    144     356   11404       11709       0      62    1693440        0
        malloc-384    384    4155      15        4155       0      30    1601280        0
        malloc-128    128   11292      23       11332       0     126    1448320        0
       malloc-4096   4096     328       2         580       0       2    1351680        0
      mbuf_cluster   2048     630       0         630       0     254    1290240        0
       UMA Slabs 0    112   11076       9       11076       0     126    1241520        0
         vmem btag     56   20484      83       20484       0     254    1151752        0
      malloc-16384  16384      62       6        6445       0       1    1114112        0
       tcp_bbr_map    128       0    6944      368307       0     126     888832        0
         FFS inode   1160     571      31        7227       0       8     698320        0
        256 Bucket   2048     294      14       24967       0       8     630784        0
    ertt_txseginfo     40       0   15756     1094127       0     254     630240        0
         VM OBJECT    264    2073     102      110679       0      30     574200        0
       malloc-4096   4096     134       6        7485       0       2     573440        0
       malloc-2048   2048     211      65       10008       0       8     565248        0
         MAP ENTRY     96    4632     408      436507       0     126     483840        0
            THREAD   1808     218      35       10413       0       8     457424        0
           sctp_ep   1280     204     129        9247       0     254     426240        0
         sctp_asoc   2288      66     114        3760       0     254     411840        0
      malloc-65536  65536       6       0           6       0       1     393216        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
             VNODE    448     610      74        7268       0      30     306432        0
            socket    944     200     124       14948       0     254     305856        0
       malloc-1024   1024     182      86        4072       0      16     274432        0
           VMSPACE   2544      94      11        7433       0       4     267120        0
         malloc-64     64    3963     195       11862       0     254     266112        0
      malloc-32768  32768       0       7        2679       0       1     229376        0
         malloc-16     16   14029     221       14097       0     254     228000        0
            DEVCTL   1024       0     220         154       0       0     225280        0
      malloc-65536  65536       1       2         629       0       1     196608        0
      malloc-65536  65536       3       0           3       0       1     196608        0
      malloc-32768  32768       0       6          66       0       1     196608        0
        malloc-128    128    1415      73       26849       0     126     190464        0
         malloc-32     32    5560     362        6131       0     254     189504        0
         UMA Zones    768     242       2         242       0      16     187392        0
              PROC   1336     120      18        7458       0       8     184368        0
        malloc-384    384     274     186       13844       0      30     176640        0
        malloc-256    256     409     281       15747       0      62     176640        0
        malloc-256    256      55     620       22583       0      62     172800        0
       mbuf_packet    256      52     578       31083       0     254     161280        0
        sctp_raddr    736      70     139        4094       0     254     153824        0
       FFS2 dinode    256     571      29        7227       0      62     153600        0
         filedesc0   1072     120      20        7441       0       8     150080        0
       S VFS Cache    104    1076     328        7981       0     126     146016        0
       malloc-2048   2048       4      66         707       0       8     143360        0
        128 Bucket   1024     111      20        4081       0      16     134144        0
      malloc-65536  65536       0       2          11       0       1     131072        0
      malloc-65536  65536       0       2         136       0       1     131072        0
      malloc-65536  65536       0       2           8       0       1     131072        0
      malloc-32768  32768       0       4         139       0       1     131072        0
        malloc-128    128     921      71       10683       0     126     126976        0
            clpbuf   2624       0      48         787       0      16     125952        0
        malloc-384    384      19     301        7109       0      30     122880        0
          ksiginfo    112     124     920        2590       0     126     116928        0
        malloc-256    256     132     288       14165       0      62     107520        0
        malloc-128    128     585     252       21241       0     126     107136        0
        malloc-256    256     276     129       12689       0      62     103680        0
      malloc-16384  16384       6       0           6       0       1      98304        0
       malloc-4096   4096      22       0          22       0       2      90112        0
          UMA Kegs    384     227       6         227       0      30      89472        0
      malloc-16384  16384       0       5          10       0       1      81920        0
         64 Bucket    512     101      51       15455       0      30      77824        0
             tcpcb   1080      27      43        2108       0     254      75600        0
       malloc-8192   8192       7       2         110       0       1      73728        0
        malloc-384    384     168      22         582       0      30      72960        0
         malloc-64     64     992     142       15897       0     254      72576        0
        sctp_chunk    152      80     388        2004       0     254      71136        0
             g_bio    408       0     170       66659       0      30      69360        0
      malloc-32768  32768       2       0           2       0       1      65536        0
         malloc-64     64     797     148        8936       0     254      60480        0
       malloc-8192   8192       7       0           7       0       1      57344        0
       malloc-4096   4096      13       1         553       0       2      57344        0
             Files     80     472     228       32187       0     126      56000        0
         tcp_inpcb    496      27      85        2108       0     254      55552        0
         32 Bucket    256      81     129       17049       0      62      53760        0
          8 Bucket     80      60     590        2769       0     127      52000        0
      malloc-16384  16384       1       2         161       0       1      49152        0
        malloc-128    128       8     364        7210       0     126      47616        0
        malloc-256    256      31     149       15827       0      62      46080        0
       malloc-2048   2048      12      10         164       0       8      45056        0
         malloc-64     64     188     505      110019       0     254      44352        0
       malloc-8192   8192       5       0           5       0       1      40960        0
       malloc-1024   1024       4      36         536       0      16      40960        0
            pcpu-8      8    4730     390        6280       0     254      40960        0
              pipe    744      24      31         633       0      16      40920        0
     udplite_inpcb    496       0      80        1555       0     254      39680        0
         TURNSTILE    136     254      19         254       0      62      37128        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36       45614       0      16      36864        0
        malloc-384    384      83       7          85       0      30      34560        0
            da_ccb    544       0      63       18946       0      16      34272        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       1       1          16       0       1      32768        0
       malloc-1024   1024      22      10        1436       0      16      32768        0
           pcpu-64     64     490      22         490       0     254      32768        0
         16 Bucket    144      77     147        1135       0      62      32256        0
       tcp_bbr_pcb    832       0      36         998       0      16      29952        0
       malloc-4096   4096       2       5        6675       0       2      28672        0
             KNOTE    160      28     147      112461       0      62      28000        0
        malloc-128    128      33     184         303       0     126      27776        0
        SLEEPQUEUE     88     254      34         254       0     126      25344        0
       malloc-8192   8192       0       3          30       0       1      24576        0
       malloc-1024   1024      19       5          82       0      16      24576        0
               PWD     32      66     690        6489       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-256    256      37      53        1144       0      62      23040        0
      tcp_rack_pcb    832       0      27         527       0      16      22464        0
       malloc-4096   4096       3       2          26       0       2      20480        0
       malloc-2048   2048       8       2          36       0       8      20480        0
       malloc-2048   2048       2       8          78       0       8      20480        0
       malloc-1024   1024       4      16          48       0      16      20480        0
        malloc-512    512       4      36         856       0      30      20480        0
         malloc-32     32     387     243       17406       0     254      20160        0
          2 Bucket     32      70     560        1636       0     254      20160        0
         malloc-16     16     469     781       50255       0     254      20000        0
            itimer    352       0      55           8       0      30      19360        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-2048   2048       1       7          25       0       8      16384        0
       malloc-2048   2048       2       6         533       0       8      16384        0
        malloc-512    512      19      13          32       0      30      16384        0
        sctp_laddr     48      39     297        2459       0     254      16128        0
      tcp_rack_map    112       0     144        1312       0     126      16128        0
      vtnet_tx_hdr     24       0     668      859082       0     254      16032        0
        malloc-128    128      89      35         630       0     126      15872        0
        malloc-256    256      34      26         169       0      62      15360        0
       malloc-4096   4096       0       3          26       0       2      12288        0
sctp_stream_msg_out    112      10      98         802       0     254      12096        0
         malloc-64     64      74     115       17844       0     254      12096        0
         malloc-32     32      99     279        6582       0     254      12096        0
         malloc-32     32     151     227        6027       0     254      12096        0
         malloc-16     16     502     248        6532       0     254      12000        0
             ripcb    496       5      19         199       0     254      11904        0
         udp_inpcb    496       6      18         299       0     254      11904        0
        malloc-128    128      31      62         814       0     126      11904        0
              kenv    258      15      30        1038       0      30      11610        0
     routing nhops    256      27      18          34       0      62      11520        0
             unpcb    256      20      25        1473       0     254      11520        0
        malloc-384    384      25       5          45       0      30      11520        0
       malloc-4096   4096       0       2         222       0       2       8192        0
       malloc-2048   2048       0       4          23       0       8       8192        0
       malloc-1024   1024       2       6           6       0      16       8192        0
       malloc-1024   1024       3       5           3       0      16       8192        0
        malloc-512    512       0      16         118       0      30       8192        0
        malloc-512    512       0      16          35       0      30       8192        0
        malloc-512    512       2      14         443       0      30       8192        0
        malloc-512    512       0      16          16       0      30       8192        0
           rtentry    176      30      16          34       0      62       8096        0
             tcptw     88       0      92          22       0     254       8096        0
              PGRP     88      35      57          59       0     126       8096        0
          rl_entry     40     112      90         112       0     254       8080        0
         hostcache     64       2     124           2       0     254       8064        0
          syncache    168       0      48           4       0     254       8064        0
             udpcb     32       6     246        1854       0     254       8064        0
              ertt     72      27      85        2108       0     126       8064        0
         malloc-64     64      30      96          62       0     254       8064        0
         malloc-64     64      31      95         482       0     254       8064        0
         malloc-64     64       2     124           7       0     254       8064        0
         malloc-32     32      48     204        4595       0     254       8064        0
         malloc-32     32     129     123         309       0     254       8064        0
         malloc-32     32      19     233          43       0     254       8064        0
          4 Bucket     48       7     161         193       0     254       8064        0
         malloc-16     16      11     489        2466       0     254       8000        0
         malloc-16     16      22     478          40       0     254       8000        0
         malloc-16     16      36     464        5244       0     254       8000        0
         malloc-16     16       0     500           6       0     254       8000        0
         malloc-16     16      14     486          19       0     254       8000        0
      tcp_log_node    120       0      66          10       0     126       7920        0
        sctp_readq    152       2      50         278       0     254       7904        0
               AIO    208       0      38          44       0      62       7904        0
           cryptop    280       0      28          70       0      30       7840        0
             AIOCB    552       0      14          59       0      16       7728        0
        malloc-384    384       0      20          65       0      30       7680        0
        malloc-256    256      18      12         371       0      62       7680        0
            AIOLIO    272       0      28          17       0      30       7616        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       8      54          58       0     126       6448        0
         domainset     40       0     126          38       0     254       5040        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-1024   1024       0       4           1       0      16       4096        0
        malloc-512    512       2       6           2       0      30       4096        0
        malloc-512    512       7       1           7       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
    tcp_log_bucket    176       0      23           1       0      62       4048        0
   sctp_asconf_ack     48       1      83           1       0     254       4032        0
          sackhole     32       0     126           3       0     254       4032        0
              AIOP     32       4     122           4       0     254       4032        0
         malloc-32     32      18     108         418       0     254       4032        0
       UMA Slabs 1    176       9      13           9       0      62       3872        0
       L VFS Cache    320       0      12           2       0      30       3840        0
        malloc-384    384       1       9           1       0      30       3840        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      15      24          20       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
tfo_ccache_entries     80       1      31           1       0     126       2560        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       0          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
               tfo      4       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            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-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-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
           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 (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/09/01 22:32 freebsd-src d491b42535db 7eb7e152 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte read in sctp_free_assoc
2021/11/12 06:21 freebsd-src c9516b83c14f 75b04091 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte read in sctp_free_assoc
2021/09/02 00:59 freebsd-src d491b42535db 7eb7e152 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte read in sctp_free_assoc
* Struck through repros no longer work on HEAD.