syzbot


panic: ASan: Invalid access, 4-byte write at ADDR, UMAUseAfterFree(fd)

Status: fixed on 2022/04/03 11:38
Reported-by: syzbot+1593381019112e5bb35c@syzkaller.appspotmail.com
Fix commit: 52106f072fd0 sctp: don't refer to a potentially outdated stream
First crash: 572d, last: 304d
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd panic: ASan: Invalid access, 1-byte write at ADDR, UMAUseAfterFree(fd) syz 222 515d 571d 0/2 closed as dup on 2021/09/07 23:38
freebsd panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd) (2) 26 1d23h 245d 0/2 upstream: reported on 2022/05/30 05:43
freebsd panic: ASan: Invalid access, 8-byte write at ADDR, UMAUseAfterFree(fd) 19 569d 570d 0/2 auto-closed as invalid on 2021/09/07 16:49
freebsd panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd) 8 287d 300d 2/2 fixed on 2022/04/19 22:30

Sample crash report:
panic: ASan: Invalid access, 1-byte write at 0xfffffe00586b3446, UMAUseAfterFree(fd)
cpuid = 0
time = 1648688986
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe00541c0f90
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe00541c10f0
vpanic() at vpanic+0x2b8/frame 0xfffffe00541c11d0
panic() at panic+0xb5/frame 0xfffffe00541c12a0
kasan_report() at kasan_report+0xdc/frame 0xfffffe00541c1370
sctp_lower_sosend() at sctp_lower_sosend+0x5065/frame 0xfffffe00541c1740
sctp_sosend() at sctp_sosend+0x72c/frame 0xfffffe00541c19e0
sosend() at sosend+0xfc/frame 0xfffffe00541c1a50
kern_sendit() at kern_sendit+0x58a/frame 0xfffffe00541c1bc0
sendit() at sendit+0x2b0/frame 0xfffffe00541c1c10
sys_sendmsg() at sys_sendmsg+0x17d/frame 0xfffffe00541c1d30
amd64_syscall() at amd64_syscall+0x40c/frame 0xfffffe00541c1f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00541c1f30
--- syscall (0, FreeBSD ELF64, nosys), rip = 0x2b432a, rsp = 0x82712ff78, rbp = 0x82712ffb0 ---
KDB: enter: panic
[ thread pid 872 tid 100297 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x270a03a(%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         0x782a4636c0c66ef4
rdx         0xdffff7c000000000
rbx                          0
rsp         0xfffffe00541c10d0
rbp         0xfffffe00541c10f0
rsi                        0x1
rdi                          0
r8                         0x3
r9                  0xffffffff
r10                          0
r11         0xfffffe008ff02190
r12         0xfffffe008ff01c80
r13         0xfffffe00541c1101
r14         0xffffffff82bb9d00  .str.26
r15         0xffffffff82bb9d00  .str.26
rip         0xffffffff8176e1db  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x270a03a(%rip)
db> show proc
Process 872 (syz-executor1702566) at 0xfffffe0058beea90:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 780 at 0xfffffe0058bed548
 ABI: FreeBSD ELF64
 flag: 0x10000080  flag2: 0
 arguments: ./syz-executor170256638
 reaper: 0xfffffe0053ddc000 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe009285c3f0
   (map 0xfffffe009285c3f0)
   (map.pmap 0xfffffe009285c4b0)
   (pmap 0xfffffe009285c518)
 threads: 3
100092                   Run     CPU 1                       syz-executor1702566
100297                   Run     CPU 0                       syz-executor1702566
100298                   RunQ                                syz-executor1702566
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  872   780   778     0  R       (threaded)                  syz-executor1702566
100092                   Run     CPU 1                       syz-executor1702566
100297                   Run     CPU 0                       syz-executor1702566
100298                   RunQ                                syz-executor1702566
  780   778   778     0  S       nanslp  0xffffffff83e458c1  syz-executor1702566
  778   776   778     0  Ss      pause   0xfffffe0053dda5f8  csh
  776   688   776     0  Ss      select  0xfffffe0007986e40  sshd
  754     1   754     0  Ss+     ttyin   0xfffffe00574e34b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe005862d8b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe005862dcb0  getty
  751     1   751     0  Ss+     ttyin   0xfffffe005862e0b0  getty
  750     1   750     0  Ss+     ttyin   0xfffffe00586b4cb0  getty
  749     1   749     0  Ss+     ttyin   0xfffffe005862e4b0  getty
  748     1   748     0  Ss+     ttyin   0xfffffe005862e8b0  getty
  747     1   747     0  Ss+     ttyin   0xfffffe005862ecb0  getty
  746     1   746     0  Ss+     ttyin   0xfffffe00574e00b0  getty
  692     1   692     0  Ss      nanslp  0xffffffff83e458c1  cron
  688     1   688     0  Ss      select  0xfffffe0007986ec0  sshd
  501     1   501     0  Ss      select  0xfffffe00079869c0  syslogd
  430     1   430     0  Ss      select  0xfffffe0007986bc0  devd
  429     1   429    65  Ss      select  0xfffffe0007986d40  dhclient
  344     1   344     0  Ss      select  0xfffffe0007986ac0  dhclient
  341     1   341     0  Ss      select  0xfffffe0007987040  dhclient
   17     0     0     0  DL      syncer  0xffffffff83f6b0e0  [syncer]
   16     0     0     0  DL      vlruwt  0xfffffe0058874a90  [vnlru]
   15     0     0     0  DL      (threaded)                  [bufdaemon]
100080                   D       psleep  0xffffffff83f696e0  [bufdaemon]
100083                   D       -       0xffffffff83211f80  [bufspacedaemon-0]
100094                   D       sdflush 0xfffffe00579724e8  [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83f9d180  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100078                   D       psleep  0xffffffff83f91038  [dom0]
100081                   D       launds  0xffffffff83f91044  [laundry: dom0]
100082                   D       umarcl  0xffffffff81ea4ba0  [uma]
    7     0     0     0  DL      -       0xffffffff83c01688  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff849a4530  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff8469e4e0  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100045                   D       -       0xffffffff83aa35c0  [doneq0]
100046                   D       -       0xffffffff83aa3540  [async]
100077                   D       -       0xffffffff83aa33c0  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056f46c88  [sequencer 00]
    3     0     0     0  DL      (threaded)                  [crypto]
100041                   D       crypto_ 0xffffffff83f8c840  [crypto]
100042                   D       crypto_ 0xfffffe0053fb7030  [crypto returns 0]
100043                   D       crypto_ 0xfffffe0053fb7080  [crypto returns 1]
   13     0     0     0  DL      (threaded)                  [geom]
100036                   D       -       0xffffffff83e1ae80  [g_event]
100037                   D       -       0xffffffff83e1aea0  [g_up]
100038                   D       -       0xffffffff83e1aec0  [g_down]
    2     0     0     0  WL      (threaded)                  [clock]
100030                   I                                   [clock (0)]
100031                   I                                   [clock (1)]
   12     0     0     0  WL      (threaded)                  [intr]
100010                   I                                   [swi6: Giant taskq]
100017                   I                                   [swi5: fast taskq]
100020                   I                                   [swi6: task queue]
100029                   I                                   [swi1: netisr 0]
100032                   I                                   [swi3: busdma]
100033                   I                                   [swi1: hpts]
100034                   I                                   [swi1: hpts]
100047                   I                                   [irq24: virtio_pci0]
100048                   I                                   [irq25: virtio_pci0]
100049                   I                                   [irq26: virtio_pci0]
100050                   I                                   [irq27: virtio_pci0]
100051                   I                                   [irq28: virtio_pci1]
100052                   I                                   [irq29: virtio_pci1]
100053                   I                                   [irq30: virtio_pci1]
100054                   I                                   [irq31: virtio_pci1]
100055                   I                                   [irq32: virtio_pci1]
100060                   I                                   [irq33: virtio_pci2]
100061                   I                                   [irq34: virtio_pci2]
100062                   I                                   [irq35: virtio_pci2]
100064                   I                                   [irq1: atkbd0]
100065                   I                                   [irq12: psm0]
100066                   I                                   [swi0: uart uart++]
100070                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053ddc000  [init]
   10     0     0     0  DL      audit_w 0xffffffff83f8d340  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff83e1b8c0  [swapper]
100005                   D       -       0xfffffe0053e13000  [softirq_0]
100006                   D       -       0xfffffe0053e12e00  [softirq_1]
100007                   D       -       0xfffffe0053e12d00  [if_io_tqg_0]
100008                   D       -       0xfffffe0053e12c00  [if_io_tqg_1]
100009                   D       -       0xfffffe0053e12b00  [if_config_tqg_0]
100011                   D       -       0xfffffe0008186200  [aiod_kick taskq]
100012                   D       -       0xfffffe0008186000  [inm_free taskq]
100013                   D       -       0xfffffe0008185d00  [linuxkpi_irq_wq]
100014                   D       -       0xfffffe0008185b00  [in6m_free taskq]
100015                   D       -       0xfffffe0008185900  [deferred_unmount ta]
100016                   D       -       0xfffffe0008185700  [thread taskq]
100018                   D       -       0xfffffe0008185300  [kqueue_ctx taskq]
100019                   D       -       0xfffffe0008185100  [pci_hp taskq]
100021                   D       -       0xfffffe0008184c00  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0008184c00  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0008184c00  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0008184c00  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0008184700  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0008184700  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0008184700  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0008184700  [linuxkpi_long_wq_3]
100035                   D       -       0xfffffe0053ef6c00  [firmware taskq]
100039                   D       -       0xfffffe0053ef5d00  [crypto_0]
100040                   D       -       0xfffffe0053ef5d00  [crypto_1]
100056                   D       -       0xfffffe0053ef4200  [vtnet0 rxq 0]
100057                   D       -       0xfffffe0053ef4100  [vtnet0 txq 0]
100058                   D       -       0xfffffe0053ef4000  [vtnet0 rxq 1]
100059                   D       -       0xfffffe0008187e00  [vtnet0 txq 1]
100063                   D       vtbslp  0xfffffe0056fe1680  [virtio_balloon]
100067                   D       -       0xffffffff82bbfb81  [deadlkres]
100071                   D       -       0xfffffe0008187100  [mca taskq]
100073                   D       -       0xfffffe00574cdd00  [acpi_task_0]
100074                   D       -       0xfffffe00574cdd00  [acpi_task_1]
100075                   D       -       0xfffffe00574cdd00  [acpi_task_2]
100076                   D       -       0xfffffe0053ef5100  [CAM taskq]
db> show all locks
Process 872 (syz-executor1702566) thread 0xfffffe008ff01c80 (100297)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe0092e99380) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_output.c:13168
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
          tcp_hpts            6         4801K            6
            devbuf         4217         4323K         4245
         sctp_stro            1         2308K          184
         sysctloid        35306         2080K        35377
             vtbuf           24         1968K           46
              kobj          327         1308K          488
            newblk          664         1190K          719
          vfscache            3         1025K            3
               pcb           21          539K          222
          inodedep            9          515K           71
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
            acpica         1674          184K        56014
           subproc           87          171K          922
         vnet_data            1          168K            1
           tidhash            3          141K            3
              vmem            3          138K            4
            linker          358          134K          386
           pagedep            3          129K           18
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          105          105K          114
               bus          991           81K         5140
          mtx_pool            2           72K            2
          syncache            1           68K            1
            module          512           64K          512
          acpitask            1           64K            1
       ddb_capture            1           64K            1
              umtx          286           36K          286
              temp           17           33K         1615
           kdtrace          157           33K         1172
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          124           31K          134
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
               BPF           10           18K           10
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread          100           16K          100
            bus-sc           34           15K         1651
            KTRACE          100           13K          100
              kenv           95           12K           95
      eventhandler          134           12K          134
            ifaddr           30           12K           32
              rman           88           11K          429
              GEOM           61           11K          490
          routetbl           50           11K          176
         CAM queue            5           11K         1528
              cred           35            9K          234
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K            1
               rpc            2            8K            2
         bmsafemap            1            8K           40
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         sctp_timw           30            8K           30
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          296
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
       ufs_dirhash           24            5K           24
               UMA          272            5K          272
                vt           11            5K           11
             ifnet            3            5K            3
           memdesc            1            4K            1
               MCA           32            4K           32
            plimit           16            4K          323
          filedesc            1            4K            1
             evdev            4            4K            4
           acpisem           28            4K           28
             hhook           15            4K           17
       ether_multi           40            4K           50
           lltable           11            4K           11
          pf_ifnet            5            3K            6
         in6_multi           25            3K           25
          terminal           11            3K           11
           session           19            3K           31
            kqueue           38            3K          875
           pwddesc           38            3K          873
           uidinfo            3            3K            8
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
         proc-args           57            2K         1819
             selfd           27            2K        12412
            Unitno           27            2K           39
           CAM XPT           22            2K          543
             lockf           15            2K           22
               msi           12            2K           12
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
         sctp_atcl            3            2K          276
             clone            9            2K            9
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
       vnodemarker            2            1K           14
      NFSD session            1            1K            1
            diradd            7            1K           36
        CAM periph            4            1K          271
            select            7            1K           29
             ipsec            3            1K            3
          indirdep            3            1K            3
             nhops            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
          sctp_ifa            5            1K            6
            crypto            4            1K            4
            ip6ndp            4            1K            5
 encap_export_host           12            1K           12
         sctp_stri            1            1K          184
          in_multi            2            1K            4
              pfil            4            1K            4
              cdev            2            1K            2
    chacha20random            1            1K            1
               osd            7            1K           18
       inpcbpolicy           10            1K          139
          sctp_ifn            2            1K            6
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
            DEVFSP            4            1K            9
             DEVFS            9            1K           10
          freework            1            1K           26
               mld            2            1K            2
              igmp            2            1K            2
            vnodes            1            1K            1
           CAM SIM            2            1K            2
            feeder            7            1K            7
         sctp_atky            4            1K          460
           tcpfunc            3            1K            3
            CC Mem            3            1K            7
        loginclass            3            1K            7
            prison            6            1K            6
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
         cryptodev            2            1K           49
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          procdesc            1            1K            6
          pmchooks            1            1K            1
            soname            4            1K         3655
               tun            3            1K            3
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           35
               pmc            1            1K            1
          acpiintr            1            1K            1
         sctp_athm            3            1K          368
          sctp_map            2            1K          184
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
               iov            1            1K        19558
          p1003.1b            1            1K            1
          filecaps            1            1K           66
            ipcomp            0            0K            0
               esp            0            0K            0
                ah            0            0K            0
           filemon            0            0K            0
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
           pf_temp            0            0K            0
            mqdata            0            0K            0
            tcp_do            0            0K            0
           tcp_fsb            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K          184
         sctp_iter            0            0K            4
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K            4
         sctp_aadr            0            0K            0
     NFSCL session            0            0K            0
     NFSCL sockreq            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
     NFSCL devinfo            0            0K            0
     NFSCL flayout            0            0K            0
      NFSCL layout            0            0K            0
               ixl            0            0K            0
     NFSD rollback            0            0K            0
      NFSCL diroff            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
         NFSCL lck            0            0K            0
      NFSCL lckown            0            0K            0
      NFSCL client            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
              iavf            0            0K            0
             axgbe            0            0K            0
       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
     NFSD usrgroup            0            0K            0
       NFSD string            0            0K            0
       NFSD V4lock            0            0K            0
      NFSD V4state            0            0K            0
          xen_intr            0            0K            0
     NFSD srvcache            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            bounce            0            0K            0
            busdma            0            0K            0
            qpidrv            0            0K            0
       msdosfs_fat            0            0K            0
     msdosfs_mount            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
      msdosfs_node            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            DEVFS4            0            0K            0
            xenbus            0            0K            0
            DEVFS2            0            0K            0
     vm_fictitious            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
         scsi_pass            0            0K            0
         ciss_data            0            0K            0
               xnb            0            0K            0
              xbbd            0            0K            0
               xbd            0            0K            0
           Balloon            0            0K            0
          sysmouse            0            0K            0
           UMAHash            0            0K            0
            vtfont            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K           18
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            4
           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
         newdirblk            0            0K            8
            dirrem            0            0K           28
             mkdir            0            0K           16
          freefile            0            0K           26
          freeblks            0            0K           25
          freefrag            0            0K            1
        allocindir            0            0K            0
       allocdirect            0            0K            0
          ufs_trim            0            0K            0
           mactemp            0            0K            0
     audit_trigger            0            0K            0
 audit_pipe_presel            0            0K            0
     audit_pipeent            0            0K            0
        audit_pipe            0            0K            0
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        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
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        MLX5EEPROM            0            0K            0
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        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
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        MLX5EEPROM            0            0K            0
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            statfs            0            0K          197
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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
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320    1078       14728       0     254   38494208        0
              mbuf    256    8579    1083       26970       0     254    2473472        0
              pbuf   2624       0     778           0       0       2    2041472        0
          BUF TRIE    144     178   11610         569       0      62    1697472        0
        malloc-384    384    4117      53        4117       0      30    1601280        0
        malloc-128    128   11570     148       11583       0     126    1499904        0
       malloc-4096   4096     334       4        1035       0       2    1384448        0
       UMA Slabs 0    112   10561      17       10561       0     126    1184736        0
         sctp_asoc   2288       1     509          92       0     254    1166880        0
      mbuf_cluster   2048     508       0         508       0     254    1040384        0
         vmem btag     56   16549     122       16549       0     254     933576        0
           sctp_ep   1208       1     509          92       0     254     616080        0
         FFS inode   1160     483      35         509       0       8     600880        0
             tcpcb   1104       3     508           7       0     254     564144        0
        RADIX NODE    144    3332     163       24828       0      62     503280        0
            socket    960      19     489        1427       0     254     487680        0
         VM OBJECT    264    1321     179       26215       0      30     396000        0
          lkpicurr    168       2    2350           2       0      62     395136        0
      malloc-65536  65536       6       0           6       0       1     393216        0
            lkpimm    168       1    2327           1       0      62     391104        0
        sctp_raddr    736       1     516          92       0     254     380512        0
      malloc-65536  65536       1       4         137       0       1     327680        0
        256 Bucket   2048     152       8        1049       0       8     327680        0
         malloc-64     64    3844     251        3846       0     254     262080        0
            THREAD   1808     118      25         298       0       8     258544        0
             VNODE    448     513      63         541       0      30     258048        0
         malloc-16     16   14610     390       14676       0     254     240000        0
            DEVCTL   1024       0     220         126       0       0     225280        0
       malloc-4096   4096      48       6         883       0       2     221184        0
        malloc-256    256     721      89         822       0      62     207360        0
        malloc-128    128    1239     280       29520       0     126     194432        0
         MAP ENTRY     96    1433     583       86811       0     126     193536        0
         UMA Zones    768     244       0         244       0      16     187392        0
         malloc-32     32    5296     374        5337       0     254     181440        0
       FFS2 dinode    256     483      87         509       0      62     145920        0
     FPU_save_area    832     120      42         314       0      16     134784        0
      malloc-65536  65536       1       1           9       0       1     131072        0
      malloc-65536  65536       0       2          46       0       1     131072        0
      malloc-32768  32768       0       4         120       0       1     131072        0
             unpcb    256       7     503        1179       0     254     130560        0
       mbuf_packet    256       0     508        1292       0     254     130048        0
       S VFS Cache    104     970     200        1009       0     126     121680        0
          ksiginfo    112      38    1006          55       0     126     116928        0
       malloc-1024   1024     105       7         114       0      16     114688        0
        malloc-128    128     618     157         788       0     126      99200        0
      malloc-32768  32768       3       0           3       0       1      98304        0
      malloc-16384  16384       2       4         162       0       1      98304        0
          UMA Kegs    384     230       3         230       0      30      89472        0
        128 Bucket   1024      45      38         482       0      16      84992        0
           VMSPACE   2552      21      12         857       0       4      84216        0
            clpbuf   2624       0      32          27       0      16      83968        0
        sctp_readq    152       1     519          92       0     254      79040        0
        sctp_chunk    152       2     518         275       0     254      79040        0
       malloc-8192   8192       8       1         137       0       1      73728        0
             g_bio    408       0     180        4862       0      30      73440        0
         malloc-64     64     522     549       14943       0     254      68544        0
        malloc-128    128     290     237         362       0     126      67456        0
        malloc-128    128     291     236         801       0     126      67456        0
      malloc-65536  65536       1       0           1       0       1      65536        0
       malloc-8192   8192       8       0           8       0       1      65536        0
       malloc-4096   4096      12       4          25       0       2      65536        0
       malloc-2048   2048       3      29         510       0       8      65536        0
        malloc-256    256     201      54        1217       0      62      65280        0
              PROC   1352      37      11         872       0       8      64896        0
sctp_stream_msg_out    112       1     539          92       0     254      60480        0
         filedesc0   1072      38      18         873       0       8      60032        0
         udp_inpcb    424       6     120         128       0      30      53424        0
         64 Bucket    512      64      40        1733       0      30      53248        0
         malloc-64     64     282     537       13531       0     254      52416        0
         malloc-64     64     500     319         936       0     254      52416        0
        malloc-256    256     128      67         144       0      62      49920        0
        malloc-256    256     116      79        1233       0      62      49920        0
         32 Bucket    256      70     125        8040       0      62      49920        0
           DIRHASH   1024      34      14          34       0      16      49152        0
             NAMEI   1024       0      48       12267       0      16      49152        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-2048   2048       1      23         524       0       8      49152        0
       malloc-1024   1024      12      36         717       0      16      49152        0
       malloc-1024   1024      27      21         139       0      16      49152        0
          syncache    168       0     264           5       0     254      44352        0
       Mountpoints   2752       2      12           2       0       4      38528        0
            pcpu-8      8    4220     388        4248       0     254      36864        0
         malloc-64     64     125     442         147       0     254      36288        0
         malloc-64     64      90     477        2305       0     254      36288        0
         malloc-64     64      58     509         376       0     254      36288        0
         malloc-64     64       7     560          21       0     254      36288        0
        malloc-128    128     157     122         655       0     126      35712        0
        malloc-128    128     104     175         414       0     126      35712        0
        malloc-128    128      34     245         135       0     126      35712        0
     routing nhops    256      10     125          17       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-384    384      52      38          52       0      30      34560        0
        malloc-384    384      43      47         328       0      30      34560        0
        malloc-384    384      76      14          95       0      30      34560        0
        malloc-384    384       8      82          71       0      30      34560        0
        malloc-256    256      23     112         136       0      62      34560        0
        malloc-256    256      42      93         414       0      62      34560        0
        malloc-256    256      22     113         172       0      62      34560        0
         TURNSTILE    136     144     108         144       0      62      34272        0
      malloc-16384  16384       2       0          17       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
       malloc-2048   2048       4      12          67       0       8      32768        0
       malloc-2048   2048       4      12          15       0       8      32768        0
       malloc-2048   2048       8       8           8       0       8      32768        0
       malloc-2048   2048       4      12         119       0       8      32768        0
       malloc-1024   1024       6      26          10       0      16      32768        0
       malloc-1024   1024       9      23          10       0      16      32768        0
       malloc-1024   1024       8      24         882       0      16      32768        0
        malloc-512    512       4      60         171       0      30      32768        0
        malloc-512    512       1      63         186       0      30      32768        0
        malloc-512    512       3      61          15       0      30      32768        0
        malloc-512    512       8      56           8       0      30      32768        0
        malloc-512    512       0      64           9       0      30      32768        0
           pcpu-64     64     492      20         492       0     254      32768        0
            ttyinq    160     135      65         300       0      62      32000        0
            cpuset    104       7     272           7       0     126      29016        0
        sctp_laddr     48       0     588           4       0     254      28224        0
         malloc-32     32     317     565         389       0     254      28224        0
         16 Bucket    144      46     150         237       0      62      28224        0
          4 Bucket     48       6     582          54       0     254      28224        0
         tcp_inpcb    424       3      60           7       0      30      26712        0
             ripcb    424       1      62           4       0      30      26712        0
            da_ccb    544       0      49        1342       0      16      26656        0
              pipe    744       6      29         284       0      16      26040        0
       malloc-4096   4096       3       3         201       0       2      24576        0
           rtentry    176      13     125          17       0      62      24288        0
              PGRP     88      19     257          31       0     126      24288        0
    ertt_txseginfo     40       0     606         342       0     254      24240        0
          rl_entry     40      31     575          31       0     254      24240        0
             Files     80      68     232        6688       0     126      24000        0
          8 Bucket     80      44     256         242       0     126      24000        0
        malloc-384    384       5      55         345       0      30      23040        0
        malloc-384    384       1      59           2       0      30      23040        0
        SLEEPQUEUE     88     144     112         144       0     126      22528        0
         hostcache     64       1     314           1       0     254      20160        0
             udpcb     32       6     624         128       0     254      20160        0
   udp_inpcb ports     32       3     627          40       0     254      20160        0
              ertt     72       3     277           7       0     126      20160        0
               PWD     32      10     620         100       0     254      20160        0
         malloc-32     32      50     580         646       0     254      20160        0
         malloc-32     32     103     527         330       0     254      20160        0
         malloc-32     32      41     589          95       0     254      20160        0
         malloc-32     32      64     566         957       0     254      20160        0
         malloc-32     32      52     578        3129       0     254      20160        0
         malloc-32     32       8     622        1070       0     254      20160        0
          2 Bucket     32      48     582         300       0     254      20160        0
        malloc-256    256       1      74          19       0      62      19200        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
       malloc-8192   8192       1       1           3       0       1      16384        0
       malloc-4096   4096       1       3          85       0       2      16384        0
       malloc-2048   2048       2       6           2       0       8      16384        0
       malloc-2048   2048       6       2         197       0       8      16384        0
       malloc-1024   1024       1      15           1       0      16      16384        0
        malloc-512    512       3      29           3       0      30      16384        0
           SMR CPU     32       7     504           7       0     254      16352        0
              kenv    258      15      45        1023       0      30      15480        0
            mqnode    416       3      33           3       0      30      14976        0
              vmem   1856       1       7           1       0       8      14848        0
        SMR SHARED     24       7     504           7       0     254      12264        0
   tcp_inpcb ports     32       1     377           1       0     254      12096        0
      vtnet_tx_hdr     24       0     501        2044       0     254      12024        0
             KNOTE    160       0      75           8       0      62      12000        0
         malloc-16     16      18     732         131       0     254      12000        0
         malloc-16     16     308     442         494       0     254      12000        0
         malloc-16     16      22     728         408       0     254      12000        0
         malloc-16     16      39     711         149       0     254      12000        0
         malloc-16     16     204     546        4191       0     254      12000        0
         malloc-16     16      27     723       31564       0     254      12000        0
         malloc-16     16      15     735         246       0     254      12000        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       0       2           3       0       2       8192        0
           pcpu-16     16      14     498          14       0     254       8192        0
       UMA Slabs 1    176       8      14           8       0      62       3872        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
       FFS1 dinode    128       0       0           0       0     126          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      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 tags    104       0       0           0       0     126          0        0
          pf mtags     56       0       0           0       0     254          0        0
      tcp_rack_pcb    896       0       0           0       0      16          0        0
      tcp_rack_map    120       0       0           0       0     126          0        0
       tcp_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
               ipq     56       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
          sackhole     32       0       0           0       0     254          0        0
             tcptw     72       0       0           0       0     254          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
           tcp_log    416       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
       ripcb ports     32       0       0           0       0     254          0        0
udplite_inpcb ports     32       0       0           0       0     254          0        0
     udplite_inpcb    424       0       0           0       0      30          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
            itimer    352       0       0           0       0      30          0        0
            AIOLIO    272       0       0           0       0      30          0        0
             AIOCB    552       0       0           0       0      16          0        0
              AIOP     32       0       0           0       0     254          0        0
               AIO    208       0       0           0       0      62          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
           NCLNODE    608       0       0           0       0      16          0        0
        TMPFS node    224       0       0           0       0      62          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
           cryptop    280       0       0           0       0      30          0        0
  linux_dma_object     32       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
         domainset     40       0       0           0       0     254          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      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-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-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
       malloc-1024   1024       0       0           0       0      16          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-384    384       0       0           0       0      30          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (462):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2022/03/31 01:12 freebsd-src d27c9f5bc38e 7c337266 console log report syz C panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/08/13 13:29 freebsd-src a16771de4c1e 3fd2ea69 console log report panic: ASan: Invalid access, 4-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/07/07 20:40 freebsd-src da2f833f7a0b 95793bce console log report panic: ASan: Invalid access, 4-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/03/31 00:47 freebsd-src d27c9f5bc38e 7c337266 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/03/15 22:13 freebsd-src 813738fabaae 7c337266 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/03/01 18:32 freebsd-src 8881d206f4e6 7c337266 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/02/25 02:33 freebsd-src 05c3e8e87142 7c337266 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/02/21 07:28 freebsd-src baf8cbcd97a6 3cd800e4 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-i386 2022/03/31 17:36 freebsd-src ab8ac4c28574 7c337266 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-i386 2022/03/18 18:13 freebsd-src fa1dab788d24 7c337266 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-i386 2022/03/07 23:47 freebsd-src 9282f04ff0ee 7c337266 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-i386 2022/02/19 15:18 freebsd-src 47a2e541dc68 3cd800e4 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/02/14 19:07 freebsd-src abf5bff71d38 8b9ca619 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/02/14 18:04 freebsd-src abf5bff71d38 8b9ca619 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/02/10 21:17 freebsd-src cb51e2bc3db7 0b33604d console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/02/08 15:39 freebsd-src 2ec9a427c850 0b33604d console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/02/07 18:36 freebsd-src 31cf95cec738 a7dab638 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/02/05 10:47 freebsd-src 610b97ebaa91 a7dab638 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/02/04 10:22 freebsd-src e388de98bd02 a3e470b2 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/02/03 19:45 freebsd-src 1ebf46075872 30646bfe console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/02/03 03:56 freebsd-src e2fe58d61b7c 4ebb2798 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/02/01 11:46 freebsd-src 303d3ae7e841 c1c1631d console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/01/26 13:34 freebsd-src 81de556105b2 2cbffd88 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/01/16 22:40 freebsd-src c8f8299a230d 723cfaf0 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2022/01/09 09:10 freebsd-src 6d06bc688eb5 2ca0d385 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/12/16 13:46 freebsd-src b214fcceacad 8dd6a5e3 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/12/09 23:27 freebsd-src dabd8bf9145a 4d4ce9bc console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/12/01 21:28 freebsd-src dabd8bf9145a 61f86278 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/11/30 14:08 freebsd-src 4f924a786ae0 80270552 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/11/29 18:02 freebsd-src 4f924a786ae0 d0830353 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/11/19 20:44 freebsd-src bebff615877e 3a9d0024 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/11/19 16:39 freebsd-src 32854e528ac6 3a9d0024 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/11/18 15:32 freebsd-src 32854e528ac6 31a30fc0 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/11/17 00:42 freebsd-src 32854e528ac6 cafff8b6 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/11/16 11:58 freebsd-src 123b5b876377 600426bd console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/11/16 04:25 freebsd-src 9b8eb1c5b62d 83f5c9b5 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/11/15 21:47 freebsd-src fb4114332463 83f5c9b5 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/11/15 14:12 freebsd-src fb4114332463 83f5c9b5 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-main 2021/11/15 01:42 freebsd-src 75c666197cc7 83f5c9b5 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-i386 2022/01/17 16:58 freebsd-src 779fd0534466 731a2d23 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-i386 2021/12/28 16:12 freebsd-src f7926a6d0c10 6b3c5e64 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-i386 2021/12/11 02:16 freebsd-src 479ea5cf2d7a 49ca1f59 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-i386 2021/12/03 14:40 freebsd-src ea68079ffd84 c7c20675 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-i386 2021/11/30 02:35 freebsd-src 147bf5e930b7 d0830353 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-i386 2021/11/28 17:25 freebsd-src 4f924a786ae0 63eeac02 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
ci-freebsd-i386 2021/11/26 05:44 freebsd-src cc7decfcf93b 63eeac02 console log report panic: ASan: Invalid access, NUM-byte write at ADDR, UMAUseAfterFree(fd)
* Struck through repros no longer work on HEAD.