syzbot


Fatal trap NUM: page fault while in kernel mode

Status: fixed on 2021/09/29 10:05
Reported-by: syzbot+a0b62c6107b34a04e54d@syzkaller.appspotmail.com
Fix commit: 5b53e749a95e sctp: fix usage of stream scheduler functions
First crash: 498d, last: 494d
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd Fatal trap NUM: page fault while in kernel mode (3) 3 405d 418d 0/2 auto-closed as invalid on 2022/03/28 07:44
freebsd Fatal trap 12: page fault while in kernel mode (3) C 140 506d 1112d 2/2 fixed on 2021/09/18 04:00
freebsd Fatal trap NUM: page fault while in kernel mode (2) 1 430d 430d 2/2 fixed on 2021/12/14 01:02
freebsd Fatal trap NUM: page fault while in kernel mode (4) C 5 178d 314d 0/2 upstream: reported C repro on 2022/03/29 04:49

Sample crash report:
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address	= 0xffffffffffffffff
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff847fec92
stack pointer	        = 0x28:0xfffffe00a40d6d40
frame pointer	        = 0x28:0xfffffe00a40d6d70
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 1098 (syz-executor.0)
trap number		= 12
panic: page fault
cpuid = 1
time = 1632859762
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe00a40d6550
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe00a40d66b0
20:09:21 executing program 0:
r0 = socket$inet6_sctp(0x1c, 0x1, 0x84)
setsockopt$inet6_sctp_SCTP_DEFAULT_SNDINFO(r0, 0x84, 0x21, &(0x7f00000001c0)={0x0, 0x400}, 0x10)
sendmsg(r0, &(0x7f0000000640)={&(0x7f0000000040)=@in6={0x1c, 0x1c, 0x0, 0x0, @remote={0xfe, 0x80, '\x00', 0x0}}, 0x1c, &(0x7f0000000380)=[{&(0x7f0000000080)='a', 0x1}], 0x1, 0x0}, 0x0)

20:09:21 executing program 3:
r0 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f00000003c0)={'rack\x00'}, 0x24)
setsockopt$inet_tcp_int(r0, 0x6, 0x47, &(0x7f00000001c0)=0x2d3, 0x4)
connect$inet(r0, &(0x7f00000000c0)={0x10, 0x2, 0x0, @rand_addr}, 0x10)

20:09:21 executing program 3:
r0 = socket(0x2, 0x1, 0x0)
setsockopt$inet_tcp_TCP_FUNCTION_BLK(r0, 0x6, 0x2000, &(0x7f00000003c0)={'rack\x00'}, 0x24)
setsockopt$inet_tcp_int(r0, 0x6, 0x47, &(0x7f00000001c0)=0x2d3, 0x4)
connect$inet(r0, &(0x7f00000000c0)={0x10, 0x2, 0x0, @rand_addr}, 0x10)

vpanic() at vpanic+0x2c5/frame 0xfffffe00a40d6790
panic() at panic+0xb5/frame 0xfffffe00a40d6850
trap_fatal() at trap_fatal+0x6a4/frame 0xfffffe00a40d6950
trap_pfault() at trap_pfault+0x186/frame 0xfffffe00a40d6a90
trap() at trap+0x5e7/frame 0xfffffe00a40d6c70
calltrap() at calltrap+0x8/frame 0xfffffe00a40d6c70
--- trap 0xc, rip = 0xffffffff847fec92, rsp = 0xfffffe00a40d6d40, rbp = 0xfffffe00a40d6d70 ---
sctp_ss_default_select() at sctp_ss_default_select+0x112/frame 0xfffffe00a40d6d70
sctp_med_chunk_output() at sctp_med_chunk_output+0x190c/frame 0xfffffe00a40d7920
sctp_chunk_output() at sctp_chunk_output+0x2b25/frame 0xfffffe00a40d8580
sctp_inpcb_free() at sctp_inpcb_free+0xbcc/frame 0xfffffe00a40d8610
sctp_close() at sctp_close+0x1fb/frame 0xfffffe00a40d86f0
soclose() at soclose+0x3fe/frame 0xfffffe00a40d8800
_fdrop() at _fdrop+0x58/frame 0xfffffe00a40d8830
closef() at closef+0x686/frame 0xfffffe00a40d8a20
fdescfree_fds() at fdescfree_fds+0x1fa/frame 0xfffffe00a40d8a90
fdescfree() at fdescfree+0x903/frame 0xfffffe00a40d8c80
exit1() at exit1+0x8b7/frame 0xfffffe00a40d8d10
sys_sys_exit() at sys_sys_exit+0x28/frame 0xfffffe00a40d8d30
amd64_syscall() at amd64_syscall+0x425/frame 0xfffffe00a40d8f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00a40d8f30
--- syscall (1, FreeBSD ELF64, sys_sys_exit), rip = 0x2eb7ca, rsp = 0x7fffffffe488, rbp = 0x7fffffffe490 ---
KDB: enter: panic
[ thread pid 1098 tid 100232 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28e03da(%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         0x68fa49ab8af7daa3
rdx                        0x1
rbx                          0
rsp         0xfffffe00a40d6690
rbp         0xfffffe00a40d66b0
rsi                          0
rdi         0xffffffff817bc96a  vprintf+0x35a
r8                           0
r9          0xfffffe00a40d61c8
r10                          0
r11         0xfffffe009e9f2c30
r12         0xfffffe009e9f2720
r13         0xfffffe00a40d6701
r14         0xffffffff82c7fe60  .str.18
r15         0xffffffff82c7fe60  .str.18
rip         0xffffffff817b02db  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28e03da(%rip)
db> show proc
Process 1098 (syz-executor.0) at 0xfffffe009ebc8a70:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 783 at 0xfffffe0058b55538
 ABI: FreeBSD ELF64
 flag: 0x10002000  flag2: 0
 arguments: /root/syz-executor.0
 reaper: 0xfffffe0053d60538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe009ea709f0
   (map 0xfffffe009ea709f0)
   (map.pmap 0xfffffe009ea70ab0)
   (pmap 0xfffffe009ea70b10)
 threads: 1
100232                   Run     CPU 1                       syz-executor.0
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1098   783   783     0  RE      CPU 1                       syz-executor.0
 1094   784   784     0  LE     *sctp-in 0xfffffe00587860c0  syz-executor.1
 1065     0     0     0  DL      aiordy  0xfffffe00a5045538  [aiod4]
 1064     0     0     0  DL      aiordy  0xfffffe00a5045000  [aiod3]
 1063     0     0     0  DL      aiordy  0xfffffe009e570a70  [aiod2]
 1062     0     0     0  DL      aiordy  0xfffffe00a5059a70  [aiod1]
  994   984   994     0  Ss      select  0xfffffe0058b0d4c0  dhclient
  989     1   989     0  Ss      select  0xfffffe0057421640  dhclient
  984   973   436    65  S       select  0xfffffe009ea61640  dhclient
  973   436   436     0  S       wait    0xfffffe009e46ea70  sh
  789   780   789     0  Ss      piperd  0xfffffe009e3f4ba0  syz-executor.3
  787   780   787     0  Ss      piperd  0xfffffe00588d55d0  syz-executor.2
  784   780   784     0  Ss      nanslp  0xffffffff8405d5c0  syz-executor.1
  783   780   783     0  Ss      nanslp  0xffffffff8405d5c0  syz-executor.0
  780   778   778     0  S       (threaded)                  syz-fuzzer
100112                   S       uwait   0xfffffe00588e6d00  syz-fuzzer
100125                   S       uwait   0xfffffe0058785e80  syz-fuzzer
100126                   S       kqread  0xfffffe00587c1200  syz-fuzzer
100127                   S       uwait   0xfffffe00575e1100  syz-fuzzer
100128                   S       uwait   0xfffffe009e509700  syz-fuzzer
100129                   S       uwait   0xfffffe009e509800  syz-fuzzer
100130                   S       uwait   0xfffffe009e9f7d80  syz-fuzzer
100131                   S       uwait   0xfffffe00575e1200  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffffe0058b83b20  csh
  776   694   776     0  Ss      select  0xfffffe009e545d40  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe0057014cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00575f94b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00575f9cb0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00575f64b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00575f6cb0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00575f24b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00575f2cb0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00575ed4b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe00575edcb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8405d5c1  cron
  694     1   694     0  Ss      select  0xfffffe0058b0d140  sshd
  507     1   507     0  Ds      getbuf  0xfffffe0007980ea4  syslogd
  436     1   436     0  Ss      wait    0xfffffe0058b83000  devd
  435     1   435    65  Ss      select  0xfffffe0057421940  dhclient
  350     1   350     0  Ss      select  0xfffffe0058b0d640  dhclient
  347     1   347     0  Ss      select  0xfffffe0058b0d940  dhclient
   23     0     0     0  DL      syncer  0xffffffff84185960  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe005877da70  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100085                   D       qsleep  0xffffffff84183660  [bufdaemon]
100088                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100099                   D       sdflush 0xfffffe005883e8e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841bbb80  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100083                   D       psleep  0xffffffff841af6b8  [dom0]
100089                   D       launds  0xffffffff841af6c4  [laundry: dom0]
100090                   D       umarcl  0xffffffff81eb2b10  [uma]
   18     0     0     0  DL      -       0xffffffff83e13ca0  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff8488c5a0  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff84d111a0  [pf purge]
   15     0     0     0  DL      -       0xffffffff8417e880  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8417e880  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8417e880  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8417e880  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100048                   D       -       0xffffffff83c99540  [doneq0]
100049                   D       -       0xffffffff83c994c0  [async]
100082                   D       -       0xffffffff83c99340  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056ac8c88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe00541c9d80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe00541c9d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff841a9760  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100039                   D       -       0xffffffff84030b80  [g_event]
100040                   D       -       0xffffffff84030bc0  [g_up]
100041                   D       -       0xffffffff84030c00  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100029                   D       -       0xfffffe00081f6d00  [thr_0]
100030                   D       -       0xfffffe00081f6d80  [thr_1]
100031                   D       -       0xffffffff8417fc08  [alloc_0]
   12     0     0     0  WL      (threaded)                  [intr]
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100032                   I                                   [swi1: netisr 0]
100033                   I                                   [swi3: vm]
100034                   I                                   [swi4: clock (0)]
100035                   I                                   [swi4: clock (1)]
100036                   I                                   [swi1: hpts]
100037                   I                                   [swi1: hpts]
100050                   I                                   [irq24: virtio_pci0]
100051                   I                                   [irq25: virtio_pci0]
100052                   I                                   [irq26: virtio_pci0]
100053                   I                                   [irq27: virtio_pci0]
100054                   I                                   [irq28: virtio_pci1]
100055                   I                                   [irq29: virtio_pci1]
100056                   I                                   [irq30: virtio_pci1]
100057                   I                                   [irq31: virtio_pci1]
100058                   I                                   [irq32: virtio_pci1]
100063                   I                                   [irq10: virtio_pci2]
100065                   I                                   [irq1: atkbd0]
100066                   I                                   [irq12: psm0]
100067                   I                                   [swi0: uart uart++]
100075                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   Run     CPU 0                       [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053d60538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841aa700  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff84031a80  [swapper]
100005                   D       -       0xfffffe00081f8900  [softirq_0]
100006                   D       -       0xfffffe00081f8700  [softirq_1]
100007                   D       -       0xfffffe00081f8500  [if_io_tqg_0]
100008                   D       -       0xfffffe00081f8300  [if_io_tqg_1]
100009                   D       -       0xfffffe00081f8100  [if_config_tqg_0]
100010                   D       -       0xfffffe0053dfce00  [deferred_unmount ta]
100013                   D       -       0xfffffe0053dfc800  [thread taskq]
100015                   D       -       0xfffffe0053dfc400  [linuxkpi_irq_wq]
100016                   D       -       0xfffffe0053dfc200  [kqueue_ctx taskq]
100017                   D       -       0xfffffe0053dfc000  [pci_hp taskq]
100018                   D       -       0xfffffe0053e06d00  [aiod_kick taskq]
100019                   D       -       0xfffffe0053e06b00  [inm_free taskq]
100020                   D       -       0xfffffe0053e06900  [in6m_free taskq]
100021                   D       -       0xfffffe0053e06700  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053e06700  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053e06700  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053e06700  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053e06200  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053e06200  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053e06200  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053e06200  [linuxkpi_long_wq_3]
100038                   D       -       0xfffffe0053e14200  [firmware taskq]
100042                   D       -       0xfffffe005419ec00  [crypto_0]
100043                   D       -       0xfffffe005419ec00  [crypto_1]
100059                   D       -       0xfffffe0056ec3b00  [vtnet0 rxq 0]
100060                   D       -       0xfffffe0056ec3a00  [vtnet0 txq 0]
100061                   D       -       0xfffffe0056ec3900  [vtnet0 rxq 1]
100062                   D       -       0xfffffe0056ec3800  [vtnet0 txq 1]
100064                   D       vtbslp  0xfffffe0056ff6600  [virtio_balloon]
100068                   D       -       0xfffffe0057027800  [mca taskq]
100073                   D       -       0xffffffff82c86de1  [deadlkres]
100077                   D       -       0xfffffe0057415a00  [acpi_task_0]
100078                   D       -       0xfffffe0057415a00  [acpi_task_1]
100079                   D       -       0xfffffe0057415a00  [acpi_task_2]
100081                   D       -       0xfffffe005419e400  [CAM taskq]
db> show all locks
Process 1098 (syz-executor.0) thread 0xfffffe009e9f2720 (100232)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe009eb15a90) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3355
exclusive sleep mutex sctp-inp (inp) r = 0 (0xfffffe009eb3c460) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3322
exclusive rw sctp-info (sctp-info) r = 0 (0xfffffe00081b7318) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3321
exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffffe009eb3c480) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3320
Process 1094 (syz-executor.1) thread 0xfffffe009eb921e0 (100324)
exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffffe00a507e978) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3320
Process 507 (syslogd) thread 0xfffffe00588e4740 (100102)
exclusive lockmgr ufs (ufs) r = 0 (0xfffffe009e487cb0) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_syscalls.c:3543
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4213         4323K         4241
          tcp_hpts            6         3201K            6
         sysctloid        35175         2072K        35246
             vtbuf           24         1968K           46
              kobj          326         1304K          483
            newblk           46         1036K          927
          vfscache            3         1025K            3
          inodedep          155          570K          273
               pcb           33          544K          756
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          130          256K         1173
            acpica         1674          184K        55237
         vnet_data            1          168K            1
              vmem            3          146K            4
           tidhash            3          141K            3
            linker          355          140K          383
           pagedep           15          132K          211
        tfo_ccache            1          128K            1
            DEVFS1          108          108K          125
               sem            4          106K            4
          filedesc           14          105K          421
               bus          986           80K         3474
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          509           64K          509
              umtx          352           44K          352
           kdtrace          207           42K         1561
               BPF           22           36K           22
              temp           34           33K         1992
            dirrem          131           33K          206
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          127           32K          137
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
            ifaddr           68           20K           70
         ufs_mount            4           17K            5
              proc            3           17K            3
          freefile          131           17K          204
          routetbl          138           17K          438
               tty           16           16K           16
           ithread           99           16K           99
           lltable           46           15K           46
            bus-sc           34           15K         1691
       ether_multi          157           13K          167
            KTRACE          100           13K          100
             ifnet            7           13K            7
              kenv           95           12K           95
      eventhandler          133           12K          133
         CAM queue            5           11K         1528
              GEOM           61           10K          487
              rman           84           10K          425
         in6_multi           71            9K           71
         bmsafemap            2            9K          240
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K           34
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         sctp_timw           31            8K           31
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          295
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
            kqueue           59            6K         1106
              cred           23            6K          204
            plimit           21            6K          349
       ufs_dirhash           24            5K           24
            DEVFSP           74            5K          165
               UMA          270            5K          270
          pf_ifnet           10            5K           19
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           68
           acpisem           28            4K           28
           pwddesc           55            4K         1100
             hhook           15            4K           17
            diradd           25            4K          239
           session           25            4K           38
         sctp_stro            3            3K           91
          terminal           11            3K           11
         proc-args           44            3K          589
         sctp_atcl            6            3K          376
           uidinfo            3            3K            7
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
             mkdir           16            2K          396
          indirdep            8            2K           10
         ipsec-saq            2            2K            2
             lockf           19            2K           29
            ip6ndp           12            2K           15
          sctp_ifa           14            2K           15
            Unitno           30            2K           93
             selfd           26            2K        22803
           CAM XPT           22            2K          543
         newdirblk           12            2K          198
          in_multi            6            2K            8
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
            select           10            2K           37
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           16
      NFSD session            1            1K            1
        CAM periph            4            1K          271
          freework            4            1K          204
             ipsec            3            1K            3
          sctp_ifn            6            1K           15
          freeblks            3            1K          203
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
            crypto            4            1K            4
 encap_export_host           12            1K           12
              pfil            4            1K            4
              cdev            2            1K            2
       inpcbpolicy           14            1K          291
               osd            8            1K          121
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              vnet            1            1K            1
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            statfs            0            0K          375
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320     972      545148       0     254   38060032        0
              pbuf   2624       0     989           0       0       2    2595136        0
              mbuf    256    8709     846      919973       0     254    2446080        0
          BUF TRIE    144     194   11566         613       0      62    1693440        0
        malloc-384    384    4323       7        4442       0      30    1662720        0
       malloc-4096   4096     385       5        1601       0       2    1597440        0
        malloc-128    128   11835      38       11968       0     126    1519744        0
        RADIX NODE    144    8993     242       48392       0      62    1329840        0
       UMA Slabs 0    112   10248       9       10248       0     126    1148784        0
         vmem btag     56   16210     109       16210       0     254     913864        0
       tcp_bbr_map    128       0    5301       50857       0     126     678528        0
         FFS inode   1160     505      27         709       0       8     617120        0
    ertt_txseginfo     40       0   11615      103432       0     254     464600        0
      mbuf_cluster   2048     195       1         195       0     254     401408        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
        256 Bucket   2048     170       4       14567       0       8     356352        0
            THREAD   1808     149      27         460       0       8     318208        0
         VM OBJECT    264    1084     116       17432       0      30     316800        0
         malloc-64     64    4476      60        6767       0     254     290304        0
        malloc-256    256     414     681        2611       0      62     280320        0
             VNODE    448     542      61         748       0      30     270144        0
         malloc-16     16   14755     245       16213       0     254     240000        0
            DEVCTL   1024      22     198         152       0       0     225280        0
      malloc-65536  65536       1       2          73       0       1     196608        0
      malloc-65536  65536       1       2         137       0       1     196608        0
      malloc-16384  16384       6       6         208       0       1     196608        0
         UMA Zones    768     242       2         242       0      16     187392        0
         malloc-32     32    5598      72        6381       0     254     181440        0
        malloc-128    128    1217      54       26177       0     126     162688        0
     FPU_save_area    832     151      38        2866       0      16     157248        0
         MAP ENTRY     96    1246     392       55812       0     126     157248        0
        malloc-128    128    1086      30        5389       0     126     142848        0
       malloc-1024   1024     133       3         150       0      16     139264        0
       FFS2 dinode    256     505      20         709       0      62     134400        0
       S VFS Cache    104    1004     244        1221       0     126     129792        0
          ksiginfo    112      57     987        2472       0     126     116928        0
           VMSPACE   2544      30      12        1074       0       4     106848        0
        128 Bucket   1024      89      10        1224       0      16     101376        0
      malloc-32768  32768       1       2         131       0       1      98304        0
              PROC   1336      56      16        1099       0       8      96192        0
       malloc-8192   8192       9       2         110       0       1      90112        0
          UMA Kegs    384     227       6         227       0      30      89472        0
         filedesc0   1072      57      20        1100       0       8      82544        0
       malloc-8192   8192       8       1          10       0       1      73728        0
             g_bio    408       4     166        5158       0      30      69360        0
            socket    960      28      44        1818       0     254      69120        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       0       1           8       0       1      65536        0
       malloc-4096   4096      14       1          27       0       2      61440        0
       malloc-2048   2048      11      17         293       0       8      57344        0
       mbuf_packet    256      44     151         857       0     254      49920        0
        malloc-256    256     183      12         626       0      62      49920        0
      malloc-16384  16384       3       0           3       0       1      49152        0
      malloc-16384  16384       1       2         161       0       1      49152        0
       malloc-8192   8192       4       2          32       0       1      49152        0
       malloc-2048   2048      12      12         578       0       8      49152        0
       malloc-2048   2048       2      22         575       0       8      49152        0
         32 Bucket    256      52     128        5989       0      62      46080        0
       malloc-1024   1024      10      34        1620       0      16      45056        0
         malloc-64     64     517     176        1633       0     254      44352        0
            clpbuf   2624       0      16          24       0      16      41984        0
            pcpu-8      8    4664     456        4820       0     254      40960        0
         64 Bucket    512      74       6        2557       0      30      40960        0
        malloc-128    128      61     249         323       0     126      39680        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36       14489       0      16      36864        0
       malloc-4096   4096       9       0           9       0       2      36864        0
       malloc-4096   4096       8       1          10       0       2      36864        0
        malloc-384    384      76      14         130       0      30      34560        0
        malloc-256    256      46      89         164       0      62      34560        0
           sctp_ep   1272       3      24         285       0     254      34344        0
            da_ccb    544       1      62        1414       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       2       0          17       0       1      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
         malloc-64     64     100     404        1705       0     254      32256        0
             tcpcb   1080       4      24         110       0     254      30240        0
             KNOTE    160      28     147       26938       0      62      28000        0
        malloc-384    384      39      31         409       0      30      26880        0
        malloc-384    384      55      15          57       0      30      26880        0
        malloc-256    256      81      24         454       0      62      26880        0
         TURNSTILE    136     177      12         177       0      62      25704        0
       malloc-4096   4096       4       2           7       0       2      24576        0
            ttyinq    160     135      15         300       0      62      24000        0
             Files     80     191     109        8296       0     126      24000        0
          8 Bucket     80      43     257        1030       0     126      24000        0
        malloc-128    128     161      25         386       0     126      23808        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-256    256      66      24         473       0      62      23040        0
        malloc-256    256      55      35         920       0      62      23040        0
         sctp_asoc   2288       3       7          91       0     254      22880        0
       tcp_bbr_pcb    832       0      27          68       0      16      22464        0
              pipe    744      20      10         353       0      16      22320        0
       malloc-4096   4096       3       2        1010       0       2      20480        0
       malloc-2048   2048       2       8          54       0       8      20480        0
         malloc-64     64      71     244       37279       0     254      20160        0
         malloc-64     64     226      89         463       0     254      20160        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        SLEEPQUEUE     88     177      15         177       0     126      16896        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-1024   1024       8       8          12       0      16      16384        0
        malloc-512    512       0      32         131       0      30      16384        0
        sctp_raddr    736       3      19          91       0     254      16192        0
         malloc-64     64     168      84         285       0     254      16128        0
         malloc-32     32      88     416         686       0     254      16128        0
         16 Bucket    144      54      58         368       0      62      16128        0
      vtnet_tx_hdr     24       0     668      368422       0     254      16032        0
         tcp_inpcb    496       6      26         110       0     254      15872        0
        malloc-128    128      55      69         444       0     126      15872        0
        malloc-128    128     104      20         350       0     126      15872        0
        malloc-384    384      22      18         362       0      30      15360        0
        malloc-256    256      25      35         192       0      62      15360        0
      tcp_rack_pcb    832       0      18          31       0      16      14976        0
       malloc-2048   2048       3       3          16       0       8      12288        0
       malloc-2048   2048       3       3         194       0       8      12288        0
       malloc-2048   2048       2       4           4       0       8      12288        0
       malloc-1024   1024       4       8          92       0      16      12288        0
       malloc-1024   1024       8       4         189       0      16      12288        0
       malloc-1024   1024       7       5           7       0      16      12288        0
               PWD     32      15     363         285       0     254      12096        0
         malloc-64     64      53     136         396       0     254      12096        0
         malloc-32     32      85     293        4314       0     254      12096        0
         udp_inpcb    496       6      18         173       0     254      11904        0
              kenv    258      15      30        1031       0      30      11610        0
     routing nhops    256      27      18          35       0      62      11520        0
             unpcb    256      11      34        1215       0     254      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       0       2           3       0       2       8192        0
       malloc-2048   2048       3       1           3       0       8       8192        0
       malloc-1024   1024       2       6          12       0      16       8192        0
        malloc-512    512       6      10           6       0      30       8192        0
        malloc-512    512       5      11          78       0      30       8192        0
        malloc-512    512       5      11           5       0      30       8192        0
        malloc-512    512       8       8           8       0      30       8192        0
           rtentry    176      31      15          35       0      62       8096        0
              PGRP     88      25      67          38       0     126       8096        0
          rl_entry     40      46     156          46       0     254       8080        0
sctp_stream_msg_out    112       1      71           2       0     254       8064        0
        sctp_laddr     48       4     164          65       0     254       8064        0
      tcp_rack_map    112       0      72          93       0     126       8064        0
             udpcb     32       6     246         173       0     254       8064        0
              AIOP     32       4     248           4       0     254       8064        0
              ertt     72       4     108         110       0     126       8064        0
         malloc-64     64      64      62         162       0     254       8064        0
         malloc-32     32     134     118         348       0     254       8064        0
         malloc-32     32      61     191         104       0     254       8064        0
         malloc-32     32      42     210         453       0     254       8064        0
         malloc-32     32      51     201         230       0     254       8064        0
         malloc-32     32      17     235          30       0     254       8064        0
          4 Bucket     48       7     161          64       0     254       8064        0
          2 Bucket     32      49     203         563       0     254       8064        0
         malloc-16     16       0     500          15       0     254       8000        0
         malloc-16     16      25     475         155       0     254       8000        0
         malloc-16     16      56     444         540       0     254       8000        0
         malloc-16     16      20     480         516       0     254       8000        0
         malloc-16     16      39     461         176       0     254       8000        0
         malloc-16     16     287     213       25357       0     254       8000        0
         malloc-16     16       4     496         122       0     254       8000        0
             ripcb    496       2      14           8       0     254       7936        0
        malloc-128    128      37      25          54       0     126       7936        0
             AIOCB    552       0      14           8       0      16       7728        0
        malloc-256    256      13      17         571       0      62       7680        0
            AIOLIO    272       0      28           8       0      30       7616        0
            cpuset    104       8      54         124       0     126       6448        0
         domainset     40       0     126          93       0     254       5040        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-4096   4096       0       1           1       0       2       4096        0
       malloc-1024   1024       1       3           1       0      16       4096        0
        malloc-512    512       0       8           1       0      30       4096        0
        malloc-512    512       0       8           1       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
        sctp_chunk    152       1      25           1       0     254       3952        0
               AIO    208       0      19           7       0      62       3952        0
       UMA Slabs 1    176       9      13           9       0      62       3872        0
        malloc-384    384       0      10           1       0      30       3840        0
        malloc-384    384       2       8           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      12      27          14       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
           SMR CPU     32       3      60           3       0     254       2016        0
        SMR SHARED     24       3      60           3       0     254       1512        0
       FFS1 dinode    128       0       0           0       0     126          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
        sctp_readq    152       0       0           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     48       0       0           0       0     254          0        0
     udplite_inpcb    496       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
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     88       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
            itimer    352       0       0           0       0      30          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
           NCLNODE    592       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     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-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
        malloc-512    512       0       0           0       0      30          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (177):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2021/09/28 20:09 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/28 19:03 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/28 14:11 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/28 10:56 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/28 08:50 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/28 07:02 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/28 05:37 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/28 03:00 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/28 01:53 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/28 00:29 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/27 22:59 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/27 21:43 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/27 15:09 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/27 13:54 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/27 12:24 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/27 09:42 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/27 08:41 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/27 07:25 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/27 03:10 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/27 02:08 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/27 00:50 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/26 22:56 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/26 21:16 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/26 20:01 freebsd-src 15d077995bd2 8cac236e console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/26 18:40 freebsd-src fb640be4e944 8cac236e console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/26 15:31 freebsd-src fb640be4e944 8cac236e console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/26 12:30 freebsd-src fb640be4e944 8cac236e console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/26 11:03 freebsd-src fb640be4e944 8cac236e console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-main 2021/09/25 16:10 freebsd-src f766826fe3b8 8cac236e console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/29 09:13 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/29 06:39 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/29 01:11 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/29 00:00 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/28 22:50 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/28 21:18 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/28 16:33 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/28 08:19 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/27 20:17 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/27 18:36 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/27 17:26 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/27 12:47 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/27 11:23 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/27 06:04 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/27 04:15 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/26 19:46 freebsd-src fb640be4e944 8cac236e console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/26 16:52 freebsd-src fb640be4e944 8cac236e console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/26 14:02 freebsd-src fb640be4e944 8cac236e console log report Fatal trap NUM: page fault while in kernel mode
ci-freebsd-i386 2021/09/26 11:03 freebsd-src fb640be4e944 8cac236e console log report Fatal trap NUM: page fault while in kernel mode
* Struck through repros no longer work on HEAD.