syzbot


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

Status: fixed on 2021/10/26 12:03
Reported-by: syzbot+b08144f8cad9c67258c5@syzkaller.appspotmail.com
Fix commit: b15b0535968e tcp: allow new reno functions to be called from other CC modules
First crash: 471d, last: 468d

Sample crash report:
login: panic: ASan: Invalid access, 4-byte read at 0xfffffe00081f6184, RedZonePartial(4)
cpuid = 1
time = 1634947374
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe00077f05f0
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe00077f0750
vpanic() at vpanic+0x2c5/frame 0xfffffe00077f0830
panic() at panic+0xb5/frame 0xfffffe00077f08f0
__asan_load4_noabort() at __asan_load4_noabort+0x216/frame 0xfffffe00077f09b0
newreno_cong_signal() at newreno_cong_signal+0x6d/frame 0xfffffe00077f0a00
vegas_cong_signal() at vegas_cong_signal+0x9b/frame 0xfffffe00077f0a50
tcp_timer_rexmt() at tcp_timer_rexmt+0x13d7/frame 0xfffffe00077f0b90
softclock_call_cc() at softclock_call_cc+0x3d9/frame 0xfffffe00077f0d40
softclock() at softclock+0x152/frame 0xfffffe00077f0d90
ithread_loop() at ithread_loop+0x4f1/frame 0xfffffe00077f0ef0
fork_exit() at fork_exit+0xd0/frame 0xfffffe00077f0f30
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00077f0f30
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100030 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28e0b4a(%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         0x853e85e7fd090139
rdx         0xdffff7c000000000
rbx                          0
rsp         0xfffffe00077f0730
rbp         0xfffffe00077f0750
rsi                        0x1
rdi                          0
r8                         0x3
r9          0xfffffe00077f0268
r10                          0
r11         0xfffffe009e9bbfd0
r12         0xfffffe0053e09000
r13         0xfffffe00077f0701
r14         0xffffffff82c876c0  .str.18
r15         0xffffffff82c876c0  .str.18
rip         0xffffffff817b3f6b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28e0b4a(%rip)
db> show proc
Process 12 (intr) at 0xfffffe0053dfba70:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff84035a40
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff84035a40 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff840369c0
   (map 0xffffffff840369c0)
   (map.pmap 0xffffffff84036a80)
   (pmap 0xffffffff84036ae8)
 threads: 23
100012                   I                                   [swi5: fast taskq]
100016                   I                                   [swi6: task queue]
100017                   I                                   [swi6: Giant taskq]
100029                   I                                   [swi1: netisr 0]
100030                   Run     CPU 1                       [swi4: clock (0)]
100031                   I                                   [swi4: clock (1)]
100032                   I                                   [swi3: vm]
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                                   [irq10: virtio_pci2]
100062                   I                                   [irq1: atkbd0]
100063                   I                                   [irq12: psm0]
100064                   I                                   [swi0: uart uart++]
100068                   I                                   [swi1: pf send]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1324   780   778     0  R       CPU 0                       syz-executor2476806
  780   778   778     0  S       nanslp  0xffffffff84061981  syz-executor2476806
  778   776   778     0  Ss      pause   0xfffffe009e9cd5e8  csh
  776   689   776     0  Ss      select  0xfffffe009e9c2f40  sshd
  755     1   755     0  Ss+     ttyin   0xfffffe00570040b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00583e10b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00583e18b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe00575fc0b0  getty
  751     1   751     0  Ss+     ttyin   0xfffffe00575fc8b0  getty
  750     1   750     0  Ss+     ttyin   0xfffffe00575f80b0  getty
  749     1   749     0  Ss+     ttyin   0xfffffe00575f88b0  getty
  748     1   748     0  Ss+     ttyin   0xfffffe00575cb0b0  getty
  747     1   747     0  Ss+     ttyin   0xfffffe00575cb8b0  getty
  745     1    19     0  S+      piperd  0xfffffe00588cb5d0  logger
  744   743    19     0  S+      nanslp  0xffffffff84061981  sleep
  743     1    19     0  S+      wait    0xfffffe0058b57a70  sh
  693     1   693     0  Ss      nanslp  0xffffffff84061980  cron
  689     1   689     0  Ss      select  0xfffffe009e39f3c0  sshd
  502     1   502     0  Ss      select  0xfffffe0058842640  syslogd
  431     1   431     0  Ss      select  0xfffffe009e39f940  devd
  430     1   430    65  Ss      select  0xfffffe009e39f840  dhclient
  345     1   345     0  Ss      select  0xfffffe009e39f8c0  dhclient
  342     1   342     0  Ss      select  0xfffffe009e2f00c0  dhclient
   18     0     0     0  DL      syncer  0xffffffff84189de0  [syncer]
   17     0     0     0  DL      vlruwt  0xfffffe0058769a70  [vnlru]
   16     0     0     0  DL      (threaded)                  [bufdaemon]
100078                   D       qsleep  0xffffffff84187ae0  [bufdaemon]
100081                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100092                   D       sdflush 0xfffffe0058895ce8  [/ worker]
   15     0     0     0  DL      psleep  0xffffffff841c0080  [vmdaemon]
    9     0     0     0  DL      (threaded)                  [pagedaemon]
100076                   D       psleep  0xffffffff841b3b78  [dom0]
100082                   D       launds  0xffffffff841b3b84  [laundry: dom0]
100083                   D       umarcl  0xffffffff81eb9470  [uma]
    8     0     0     0  DL      -       0xffffffff83e17be0  [rand_harvestq]
    7     0     0     0  DL      waiting 0xffffffff84a7f760  [sctp_iterator]
    6     0     0     0  DL      pftm    0xffffffff84fa42f0  [pf purge]
    5     0     0     0  DL      (threaded)                  [cam]
100045                   D       -       0xffffffff83c9d3c0  [doneq0]
100046                   D       -       0xffffffff83c9d340  [async]
100075                   D       -       0xffffffff83c9d1c0  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056ab3c88  [sequencer 00]
    4     0     0     0  DL      crypto_ 0xfffffe00541bed80  [crypto returns 1]
    3     0     0     0  DL      crypto_ 0xfffffe00541bed30  [crypto returns 0]
    2     0     0     0  DL      crypto_ 0xffffffff841adc20  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100036                   D       -       0xffffffff84034b40  [g_event]
100037                   D       -       0xffffffff84034b80  [g_up]
100038                   D       -       0xffffffff84034bc0  [g_down]
   12     0     0     0  RL      (threaded)                  [intr]
100012                   I                                   [swi5: fast taskq]
100016                   I                                   [swi6: task queue]
100017                   I                                   [swi6: Giant taskq]
100029                   I                                   [swi1: netisr 0]
100030                   Run     CPU 1                       [swi4: clock (0)]
100031                   I                                   [swi4: clock (1)]
100032                   I                                   [swi3: vm]
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                                   [irq10: virtio_pci2]
100062                   I                                   [irq1: atkbd0]
100063                   I                                   [irq12: psm0]
100064                   I                                   [swi0: uart uart++]
100068                   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    0xfffffe0053d5c538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841aebc0  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff84035a40  [swapper]
100005                   D       -       0xfffffe0053df0600  [softirq_0]
100006                   D       -       0xfffffe0053df0500  [softirq_1]
100007                   D       -       0xfffffe0053df0400  [if_io_tqg_0]
100008                   D       -       0xfffffe0053df0300  [if_io_tqg_1]
100009                   D       -       0xfffffe0053df0200  [if_config_tqg_0]
100010                   D       -       0xfffffe0053df0100  [deferred_unmount ta]
100011                   D       -       0xfffffe0053df0000  [thread taskq]
100013                   D       -       0xfffffe0053dfac00  [pci_hp taskq]
100014                   D       -       0xfffffe0053dfab00  [kqueue_ctx taskq]
100015                   D       -       0xfffffe0053dfaa00  [linuxkpi_irq_wq]
100018                   D       -       0xfffffe0053dfa500  [aiod_kick taskq]
100019                   D       -       0xfffffe0053dfa400  [inm_free taskq]
100020                   D       -       0xfffffe0053dfa300  [in6m_free taskq]
100021                   D       -       0xfffffe0053dfa200  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053dfa200  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053dfa200  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053dfa200  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053dfa100  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053dfa100  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053dfa100  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053dfa100  [linuxkpi_long_wq_3]
100035                   D       -       0xfffffe0053e2a800  [firmware taskq]
100039                   D       -       0xfffffe0054199d00  [crypto_0]
100040                   D       -       0xfffffe0054199d00  [crypto_1]
100056                   D       -       0xfffffe0054199200  [vtnet0 rxq 0]
100057                   D       -       0xfffffe0054199100  [vtnet0 txq 0]
100058                   D       -       0xfffffe0054199000  [vtnet0 rxq 1]
100059                   D       -       0xfffffe0056ee2e00  [vtnet0 txq 1]
100061                   D       vtbslp  0xfffffe0056b94980  [virtio_balloon]
100065                   D       -       0xfffffe0056ee2700  [mca taskq]
100066                   D       -       0xffffffff82c8e681  [deadlkres]
100070                   D       -       0xfffffe0054199a00  [acpi_task_0]
100071                   D       -       0xfffffe0054199a00  [acpi_task_1]
100072                   D       -       0xfffffe0054199a00  [acpi_task_2]
100074                   D       -       0xfffffe0054199700  [CAM taskq]
db> show all locks
Process 1324 (syz-executor2476806) thread 0xfffffe009e9bac80 (100113)
exclusive rw vm object (vm object) r = 0 (0xfffffe009e51f738) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_fault.c:1354
shared sx vm map (user) (vm map (user)) r = 0 (0xfffffe009e9d5450) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_map.c:4937
Process 12 (intr) thread 0xfffffe0053e09000 (100030)
exclusive rw tcpinp (tcpinp) r = 0 (0xfffffe009e4bb5f0) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_timer.c:625
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4213         4323K         4238
          tcp_hpts            6         3201K            6
         sysctloid        34970         2060K        35041
             vtbuf           24         1968K           46
              kobj          326         1304K          485
            newblk          792         1222K          819
          vfscache            3         1025K            3
               pcb          566          571K          622
          inodedep           26          522K           71
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc           91          187K         1374
            acpica         1674          184K        55237
         vnet_data            1          168K            1
              vmem            3          146K            4
           tidhash            3          141K            3
            linker          355          140K          383
           pagedep            8          130K           18
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          104          104K          113
               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
              temp           17           33K         1606
         hostcache            1           32K            1
               shm            1           32K            1
           kdtrace          156           32K         1439
            DEVFS3          123           31K          133
              umtx          242           31K          242
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
               BPF           10           18K           10
       inpcbpolicy          553           18K          682
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
            bus-sc           34           15K         1691
            KTRACE          100           13K          100
              kenv           95           12K           95
      eventhandler          133           12K          133
            ifaddr           30           12K           32
          routetbl           50           11K          176
         CAM queue            5           11K         1528
              GEOM           61           10K          490
              rman           84           10K          425
               osd          550            9K          561
        vegas data          543            9K          543
              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
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          295
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
              cred           23            6K          234
       ufs_dirhash           24            5K           24
               UMA          268            5K          268
            plimit           17            5K          322
                vt           11            5K           11
             ifnet            3            5K            3
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          filedesc            1            4K            1
           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
            kqueue           42            3K         1327
           pwddesc           42            3K         1325
           session           20            3K           31
           uidinfo            3            3K            8
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
             selfd           27            2K        19561
         proc-args           39            2K          489
          freefile           13            2K           22
            Unitno           27            2K           39
           CAM XPT           22            2K          543
             lockf           15            2K           22
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
           softdep            1            1K            1
            dirrem            4            1K           28
            sahead            1            1K            1
          secasvar            1            1K            1
       vnodemarker            2            1K           10
      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
         newdirblk            4            1K            8
             mkdir            4            1K           16
          in_multi            2            1K            4
              pfil            4            1K            4
              cdev            2            1K            2
    chacha20random            1            1K            1
          sctp_ifn            2            1K            6
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
            DEVFSP            4            1K            9
             DEVFS            9            1K           10
               mld            2            1K            2
              igmp            2            1K            2
            vnodes            1            1K            1
           CAM SIM            2            1K            2
            feeder            7            1K            7
           tcpfunc            3            1K            3
      newreno data            3            1K          550
        loginclass            3            1K            7
            prison            6            1K            6
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
             xform            2            1K           49
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          procdesc            1            1K            6
          pmchooks            1            1K            1
            soname            4            1K         4014
          filecaps            4            1K           66
               tun            3            1K            3
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           35
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          freework            1            1K           26
          p1003.1b            1            1K            1
          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
            tcp_do            0            0K            0
           tcp_fsb            0            0K            0
          chd data            0            0K            0
        cubic data            0            0K            0
         htcp data            0            0K            0
        dctcp data            0            0K            0
            mqdata            0            0K            0
          cdg data            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K            0
         sctp_iter            0            0K            4
         sctp_mvrf            0            0K            0
         sctp_timw            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_athm            0            0K            0
         sctp_atky            0            0K            0
         sctp_atcl            0            0K            0
         sctp_a_it            0            0K            4
         sctp_aadr            0            0K            0
         sctp_stro            0            0K            0
         sctp_stri            0            0K            0
          sctp_map            0            0K            0
     NFSD rollback            0            0K            0
      NFSCL diroff            0            0K            0
        madt_table            0            0K            2
          smartpqi            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
       NFSCL deleg            0            0K            0
        NFSCL open            0            0K            0
       NFSCL owner            0            0K            0
              iavf            0            0K            0
               ixl            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
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
             axgbe            0            0K            0
     NFSD srvcache            0            0K            0
       msdosfs_fat            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
            DEVFS4            0            0K            0
          xen_intr            0            0K            0
            DEVFS2            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
         ciss_data            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
         BACKLIGHT            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
               xnb            0            0K            0
            xenbus            0            0K            0
              xbbd            0            0K            0
               xbd            0            0K            0
           Balloon            0            0K            0
     vm_fictitious            0            0K            0
          sysmouse            0            0K            0
            vtfont            0            0K            0
           ath_hal            0            0K            0
            athdev            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
               amr            0            0K            0
            pvscsi            0            0K            0
           UMAHash            0            0K            0
           scsi_da            0            0K           69
         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            3
           jsegdep            0            0K            0
              jseg            0            0K            0
         jfreefrag            0            0K            0
          jfreeblk            0            0K            0
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          freeblks            0            0K           25
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            statfs            0            0K          195
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ag_tgt_map_t malloc            0            0K            0
ag_slr_map_t malloc            0            0K            0
lDevFlags * malloc            0            0K            0
tiDeviceHandle_t * malloc            0            0K            0
ag_portal_data_t malloc            0            0K            0
ag_device_t malloc            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320     991       15824       0     254   38137856        0
              pbuf   2624       0     973           0       0       2    2553152        0
              mbuf    256    8578     992       21515       0     254    2449920        0
          BUF TRIE    144     187   11573         565       0      62    1693440        0
        malloc-384    384    4117      13        4118       0      30    1585920        0
       malloc-4096   4096     376       2        1818       0       2    1548288        0
        malloc-128    128   11478      54       11584       0     126    1476096        0
       UMA Slabs 0    112   10098      15       10098       0     126    1132656        0
         vmem btag     56   15706     109       15706       0     254     885640        0
             tcpcb   1096     546       7         550       0     254     606088        0
         FFS inode   1160     486      25         508       0       8     592760        0
            socket    960     561       3        1878       0     254     541440        0
        RADIX NODE    144    3118     181       28296       0      62     475056        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
         tcp_inpcb    496     546       6         550       0     254     273792        0
      malloc-65536  65536       4       0           4       0       1     262144        0
        malloc-256    256     994      26        1268       0      62     261120        0
         malloc-64     64    3877      92       23468       0     254     254016        0
         VM OBJECT    264     895      65       17042       0      30     253440        0
        256 Bucket   2048     110      12       11238       0       8     249856        0
             VNODE    448     516      33         540       0      30     245952        0
         malloc-16     16   15001     249       15105       0     254     244000        0
            DEVCTL   1024       0     220         126       0       0     225280        0
            THREAD   1808     113       8         113       0       8     218768        0
      malloc-65536  65536       1       2         137       0       1     196608        0
         UMA Zones    768     240       4         240       0      16     187392        0
         malloc-32     32    5536     134        5610       0     254     181440        0
        malloc-128    128    1192      48       25784       0     126     158720        0
       malloc-1024   1024     123       9         132       0      16     135168        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2          54       0       1     131072        0
       FFS2 dinode    256     486      24         508       0      62     130560        0
          ksiginfo    112      37    1007          53       0     126     116928        0
         MAP ENTRY     96     847     371       44026       0     126     116928        0
       S VFS Cache    104     966      87        1005       0     126     109512        0
     FPU_save_area    832     115       2         128       0      16      97344        0
        malloc-128    128     692      21        4052       0     126      91264        0
          UMA Kegs    384     226       7         226       0      30      89472        0
           VMSPACE   2552      24       9        1308       0       4      84216        0
            clpbuf   2624       0      32          27       0      16      83968        0
       malloc-4096   4096      17       1          30       0       2      73728        0
        128 Bucket   1024      39      28         665       0      16      68608        0
         filedesc0   1072      42      21        1325       0       8      67536        0
      mbuf_cluster   2048      30       2          30       0     254      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       2       0           2       0       1      65536        0
      malloc-32768  32768       0       2         130       0       1      65536        0
       malloc-8192   8192       5       3          33       0       1      65536        0
             g_bio    408       0     160        4716       0      30      65280        0
              PROC   1336      41       7        1324       0       8      64128        0
       malloc-2048   2048      11      19         527       0       8      61440        0
         malloc-64     64     845      37         887       0     254      56448        0
        malloc-128    128     251     152        1020       0     126      51584        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-8192   8192       6       0           6       0       1      49152        0
        malloc-128    128     338      34         462       0     126      47616        0
         32 Bucket    256      47     133       11816       0      62      46080        0
       malloc-2048   2048       1      21         574       0       8      45056        0
              ertt     72     546      70         550       0     126      44352        0
         malloc-64     64     559     134        3469       0     254      44352        0
       malloc-8192   8192       3       2         104       0       1      40960        0
       malloc-1024   1024       5      35         554       0      16      40960        0
         malloc-64     64     115     515        3217       0     254      40320        0
        malloc-384    384      93       7          95       0      30      38400        0
        malloc-256    256     100      50         244       0      62      38400        0
        malloc-256    256     127      23         179       0      62      38400        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36       12227       0      16      36864        0
            pcpu-8      8    4226     382        4254       0     254      36864        0
         malloc-64     64     463     104         902       0     254      36288        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       0       2         160       0       1      32768        0
      malloc-16384  16384       2       0          17       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
         64 Bucket    512      55       9        1510       0      30      32768        0
        malloc-384    384      26      44          72       0      30      26880        0
        malloc-256    256      67      38         626       0      62      26880        0
            da_ccb    544       0      49        1313       0      16      26656        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-4096   4096       3       3           6       0       2      24576        0
         malloc-32     32     617     139        1638       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-384    384      52       8          52       0      30      23040        0
       malloc-4096   4096       3       2         829       0       2      20480        0
       malloc-2048   2048       8       2           8       0       8      20480        0
       malloc-1024   1024      13       7          14       0      16      20480        0
       malloc-1024   1024      12       8          19       0      16      20480        0
         TURNSTILE    136     122      25         122       0      62      19992        0
        malloc-128    128     110      45         614       0     126      19840        0
       Mountpoints   2752       2       5           2       0       4      19264        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       1       1           3       0       1      16384        0
       malloc-2048   2048       3       5          29       0       8      16384        0
    ertt_txseginfo     40       1     403         830       0     254      16160        0
         malloc-32     32      70     434         625       0     254      16128        0
         16 Bucket    144      43      69         323       0      62      16128        0
         malloc-16     16     818     182       25883       0     254      16000        0
          8 Bucket     80      40     160         465       0     126      16000        0
        malloc-384    384      22      18         381       0      30      15360        0
              pipe    744       7      13         284       0      16      14880        0
        SLEEPQUEUE     88     122      38         122       0     126      14080        0
       malloc-4096   4096       1       2           4       0       2      12288        0
       malloc-4096   4096       2       1           3       0       2      12288        0
       malloc-2048   2048       3       3         194       0       8      12288        0
       malloc-1024   1024       4       8         167       0      16      12288        0
       malloc-1024   1024       8       4           8       0      16      12288        0
        malloc-512    512       1      23         119       0      30      12288        0
         malloc-32     32      23     355        1073       0     254      12096        0
             Files     80      71      79        7123       0     126      12000        0
         udp_inpcb    496       6      18         128       0     254      11904        0
        malloc-128    128      77      16          89       0     126      11904        0
              kenv    258      15      30        1024       0      30      11610        0
        malloc-384    384      14      16          24       0      30      11520        0
        malloc-256    256       2      43          53       0      62      11520        0
        malloc-256    256      12      33        1237       0      62      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-2048   2048       2       2          15       0       8       8192        0
       malloc-1024   1024       1       7         885       0      16       8192        0
        malloc-512    512       8       8           8       0      30       8192        0
        malloc-512    512       3      13           3       0      30       8192        0
        malloc-512    512       3      13          62       0      30       8192        0
           rtentry    176      13      33          17       0      62       8096        0
              PGRP     88      20      72          31       0     126       8096        0
          rl_entry     40      29     173          29       0     254       8080        0
        sctp_laddr     48       0     168           4       0     254       8064        0
             udpcb     32       6     246         128       0     254       8064        0
               PWD     32      10     242         100       0     254       8064        0
         malloc-64     64      29      97          50       0     254       8064        0
         malloc-64     64      47      79       13476       0     254       8064        0
         malloc-64     64      16     110          44       0     254       8064        0
         malloc-32     32       9     243          93       0     254       8064        0
         malloc-32     32     101     151         128       0     254       8064        0
         malloc-32     32      47     205          76       0     254       8064        0
         malloc-32     32      46     206        2716       0     254       8064        0
          4 Bucket     48       6     162         172       0     254       8064        0
          2 Bucket     32      47     205         490       0     254       8064        0
      vtnet_tx_hdr     24       0     334        3699       0     254       8016        0
             KNOTE    160       0      50           8       0      62       8000        0
         malloc-16     16       7     493           8       0     254       8000        0
         malloc-16     16      24     476         169       0     254       8000        0
         malloc-16     16      36     464         787       0     254       8000        0
         malloc-16     16     209     291        1447       0     254       8000        0
         malloc-16     16      35     465          48       0     254       8000        0
         malloc-16     16      11     489          61       0     254       8000        0
             ripcb    496       1      15           4       0     254       7936        0
        malloc-128    128       2      60           3       0     126       7936        0
     routing nhops    256      10      20          17       0      62       7680        0
             unpcb    256       7      23        1179       0     254       7680        0
       mbuf_packet    256       0      30          93       0     254       7680        0
        malloc-256    256       6      24         302       0      62       7680        0
        malloc-256    256      23       7          27       0      62       7680        0
            cpuset    104       7      55           7       0     126       6448        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-2048   2048       1       1           1       0       8       4096        0
       malloc-2048   2048       2       0           2       0       8       4096        0
        malloc-512    512       3       5          12       0      30       4096        0
        malloc-512    512       4       4           4       0      30       4096        0
        malloc-512    512       0       8          10       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           5       0     254       4032        0
       UMA Slabs 1    176       8      14           8       0      62       3872        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
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
sctp_stream_msg_out    112       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     254          0        0
        sctp_chunk    152       0       0           0       0     254          0        0
        sctp_raddr    736       0       0           0       0     254          0        0
         sctp_asoc   2288       0       0           0       0     254          0        0
           sctp_ep   1272       0       0           0       0     254          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    312       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
       tcp_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
      tcp_rack_pcb    896       0       0           0       0      16          0        0
      tcp_rack_map    120       0       0           0       0     126          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
            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
        TMPFS node    224       0       0           0       0      62          0        0
           NCLNODE    592       0       0           0       0      16          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       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-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-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-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 (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2021/10/23 00:05 freebsd-src 4e4c84f8d101 282f03fb console log report syz C panic: ASan: Invalid access, NUM-byte read in newreno_cong_signal
ci-freebsd-main 2021/10/25 21:58 freebsd-src a5e2a27dca4b 78e5f70a console log report panic: ASan: Invalid access, NUM-byte read in newreno_cong_signal
ci-freebsd-main 2021/10/24 15:47 freebsd-src dfd704b7fb2c 282f03fb console log report panic: ASan: Invalid access, NUM-byte read in newreno_cong_signal
ci-freebsd-main 2021/10/22 23:37 freebsd-src 4e4c84f8d101 282f03fb console log report panic: ASan: Invalid access, NUM-byte read in newreno_cong_signal
* Struck through repros no longer work on HEAD.