assert "info->rti_ifa->ifa_ifp != NULL" failed in route.c (3)

Status: upstream: reported on 2026/09/19 15:42
Reported-by: syzbot+50db1786766dad05c967@syzkaller.appspotmail.com
First crash: 3d09h, last: 3d09h
Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd assert "info->rti_ifa->ifa_ifp != NULL" failed in route.c (2) -1 4 304d 349d 0/4 auto-obsoleted due to no activity on 2026/02/20 13:26
openbsd assert "info->rti_ifa->ifa_ifp != NULL" failed in route.c -1 12 473d 562d 0/4 auto-obsoleted due to no activity on 2025/09/04 14:09

Sample crash report:
panic: kernel diagnostic assertion "info->rti_ifa->ifa_ifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/route.c", line 993
Stopped at      db_enter+0x25:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 160341  25275      0           0          0    0  syz-executor
*409419  86189      0           0  0x4000000    1K syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834c8077) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff83503f05,ffffffff83484dc7,3e1,ffffffff834357cf) at __assert+0x29 sys/kern/subr_prf.c:-1
rtrequest(b,ffff80002a34a588,3,ffff80002a34a628,0) at rtrequest+0xe63 sys/net/route.c:1089
rt_clone(ffff80002a34a698,fffff0806ff65460,0) at rt_clone+0x9b sys/net/route.c:381
route_mpath(fffff0806ff65448,ffff80002a34a7f4,0,0) at route_mpath+0x16f rt_match sys/net/route.c:358 [inline]
route_mpath(fffff0806ff65448,ffff80002a34a7f4,0,0) at route_mpath+0x16f rtalloc_mpath sys/net/route.c:474 [inline]
route_mpath(fffff0806ff65448,ffff80002a34a7f4,0,0) at route_mpath+0x16f sys/net/route.c:252
in_pcbselsrc(fffff0806d936cf8,ffff80002a34a7f0,fffff0806ff653d8) at in_pcbselsrc+0x200 sys/netinet/in_pcb.c:-1
rip_output(fffff0806d936c00,ffff80000161ba88,ffff80002a34a7f0,191) at rip_output+0x2bf sys/netinet/raw_ip.c:312
rip_send(ffff80000161ba88,fffff0806d936c00,0,0) at rip_send+0x13d sys/netinet/raw_ip.c:628
sosend(ffff80000161ba88,0,ffff80002a34a938,0,0,40c) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002a2d0d28,3,ffff80002a34aa30,40c,ffff80002a34aae0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002a2d0d28,ffff80002a34ab90,ffff80002a34aae0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff80002a34ab90) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a34ab90) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x8c79fc75b50, count: 1
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb{1}> 
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: kernel diagnostic assertion "info->rti_ifa->ifa_ifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/route.c", line 993
ddb{1}> show kasan
No such command
ddb{1}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834c8077) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff83503f05,ffffffff83484dc7,3e1,ffffffff834357cf) at __assert+0x29 sys/kern/subr_prf.c:-1
rtrequest(b,ffff80002a34a588,3,ffff80002a34a628,0) at rtrequest+0xe63 sys/net/route.c:1089
rt_clone(ffff80002a34a698,fffff0806ff65460,0) at rt_clone+0x9b sys/net/route.c:381
route_mpath(fffff0806ff65448,ffff80002a34a7f4,0,0) at route_mpath+0x16f rt_match sys/net/route.c:358 [inline]
route_mpath(fffff0806ff65448,ffff80002a34a7f4,0,0) at route_mpath+0x16f rtalloc_mpath sys/net/route.c:474 [inline]
route_mpath(fffff0806ff65448,ffff80002a34a7f4,0,0) at route_mpath+0x16f sys/net/route.c:252
in_pcbselsrc(fffff0806d936cf8,ffff80002a34a7f0,fffff0806ff653d8) at in_pcbselsrc+0x200 sys/netinet/in_pcb.c:-1
rip_output(fffff0806d936c00,ffff80000161ba88,ffff80002a34a7f0,191) at rip_output+0x2bf sys/netinet/raw_ip.c:312
rip_send(ffff80000161ba88,fffff0806d936c00,0,0) at rip_send+0x13d sys/netinet/raw_ip.c:628
sosend(ffff80000161ba88,0,ffff80002a34a938,0,0,40c) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002a2d0d28,3,ffff80002a34aa30,40c,ffff80002a34aae0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002a2d0d28,ffff80002a34ab90,ffff80002a34aae0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff80002a34ab90) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a34ab90) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x8c79fc75b50, count: -14
ddb{1}> show registers
rdi                                0
rsi                              0x1
rbp               0xffff80002a34a3a0
rbx               0xffff80002999ee0f
rdx               0xffff8000015ffd00
rcx               0xffff80002a2d0d28
rax               0xffff80002999dff0
r8                 0x101010101010101
r9                0x8080808080808080
r10               0x5b9201de3e75328c
r11               0x44f7176905d72ff9
r12               0xffff80002999ec10
r13                                0
r14                                0
r15                              0x1
rip               0xffffffff82f599d5    db_enter+0x25
cs                               0x8
rflags                         0x246
rsp               0xffff80002a34a390
ss                              0x10
db_enter+0x25:  addq    $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor) tid=409419 pid=86189 tcnt=2 stat=onproc
    flags process=0 proc=4000000<THREAD>
    runpri=32, usrpri=78, slppri=32, nice=20
    wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
    forw=0xffffffffffffffff, list=0xffff80002a2d0030,0xffff80002a2d0808
    process=0xffff800033bcce98 user=0xffff80002a345000, vmspace=0xfffff0806caa1b98
    estcpu=28, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{1}> ps
   PID     TID   PPID   UID  S      PRLAGS     PFLAGS WAIT      COMMAND
 25275  160341  89854     0  7           0          0           syz-executor
 25275  386095  89854     0  2           0  0x4000000           syz-executor
  1904  242881  16902     0  2           0          0           syz-executor
  1904  286980  16902     0  3           0  0x4000080 fsleep    syz-executor
 86189   82138  47887     0  2           0          0           syz-executor
*86189  409419  47887     0  7           0  0x4000000           syz-executor
   986  502582  29264     0  2         0x2          0           syz-executor
 39934  240466   2679     0  3         0x2          0 clonelk   ifconfig
  2679  112461  25247     0  3    0x100002       0x88 sigsusp   sh
 22908  165190     80     0  2           0          0           syz-executor
 22908   25477     80     0  2           0  0x4000000           syz-executor
 22908  409465     80     0  3           0  0x4000080 fsleep    syz-executor
 25247   49350  29264     0  3         0x2       0x80 wait      syz-executor
    80  103707  29264     0  3         0x2       0x80 nanoslp   syz-executor
 89854  359782  29264     0  3         0x2       0x80 nanoslp   syz-executor
 80797   84716  29264     0  3         0x2       0x80 piperd    syz-executor
 16902  523386  29264     0  3         0x2       0x80 nanoslp   syz-executor
 47887  237065  29264     0  3         0x2       0x80 nanoslp   syz-executor
 29264  199368  39393     0  3         0x2       0x80 wait      syz-executor
 39393  284257  30238     0  3    0x100002       0x88 sigsusp   ksh
 30238  373923  44946     0  3        0x10       0x88 kqread    sshd-session
 44946   49455    452     0  3        0x12       0x80 kqread    sshd-session
 81599  168156      1     0  3    0x100003       0x80 ttyin     getty
   452  461768      1     0  3           0       0x88 kqread    sshd
 67017  136173  79284    74  3   0x1100012       0x80 bpf       pflogd
 79284  129789      1     0  3           0       0x80 sbwait    pflogd
  5733  101922  50744    73  3   0x1100010       0x80 kqread    syslogd
 50744  313940      1     0  3    0x100002       0x80 sbwait    syslogd
 90750  513026      1     0  3    0x100000       0x80 kqread    resolvd
 93682  216334  29983    77  3    0x100012       0x80 kqread    dhcpleased
 14982  145715  29983    77  3    0x100012       0x80 kqread    dhcpleased
 29983  161266      1     0  3           0       0x80 kqread    dhcpleased
 80291  305225      0     0  3     0x14000      0x200 bored     smr
 48979   76210      0     0  2     0x14000      0x200           zerothread
 23075  297518      0     0  3     0x14000      0x200 aiodoned  aiodoned
 74393  287968      0     0  3     0x14000      0x200 syncer    update
 22423  493378      0     0  3     0x14000      0x200 cleaner   cleaner
 19610  178313      0     0  3     0x14000      0x200 reaper    reaper
  4087  449911      0     0  3     0x14000      0x200 pgdaemon  pagedaemon
 57105  262909      0     0  3     0x14000      0x200 bored     viomb
 57029  490590      0     0  3     0x14000 0x40000200 acpi0     acpi0
  3828  342072      0     0  3     0x14000 0x40000200           idle1
 96478  285778      0     0  3     0x14000      0x200 bored     softnet1
 79606  468258      0     0  3     0x14000      0x200 bored     softnet0
 97479  301311      0     0  3     0x14000      0x200 smrbar    systqmp
 28298  350034      0     0  3     0x14000      0x200 bored     systq
 44768  173211      0     0  3     0x14000      0x200 tmoslp    softclockmp
 76415  475015      0     0  3     0x14000 0x40000200 tmoslp    softclock
 65968   49612      0     0  3     0x14000 0x40000200           idle0
     1  282459      0     0  3         0x2       0x80 wait      init
     0       0     -1     0  3     0x10000      0x200 scheduler swapper
ddb{1}> show all locks
Process 86189 (syz-executor) thread 0xffff80002a2d0d28 (409419)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83aeecc0)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  rt_clone+0x72 sys/net/route.c:381
#2  route_mpath+0x16f rt_match sys/net/route.c:358 [inline]
#2  route_mpath+0x16f rtalloc_mpath sys/net/route.c:474 [inline]
#2  route_mpath+0x16f sys/net/route.c:252
#3  in_pcbselsrc+0x200 sys/netinet/in_pcb.c:-1
#4  rip_output+0x2bf sys/netinet/raw_ip.c:312
#5  rip_send+0x13d sys/netinet/raw_ip.c:628
#6  sosend+0x804 sys/kern/uipc_socket.c:-1
#7  sendit+0x5a5 sys/kern/uipc_syscalls.c:785
#8  sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
#9  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#9  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
#10 Xsyscall+0x128
exclusive rwlock inet46 r = 0 (0xffff80000161baa8)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2  sosend+0x78e sys/kern/uipc_socket.c:-1
#3  sendit+0x5a5 sys/kern/uipc_syscalls.c:785
#4  sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
#5  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#5  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
#6  Xsyscall+0x128
shared rwlock netlock r = 0 (0xffffffff83921cc0)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413
#2  solock_shared+0x6e sys/kern/uipc_socket2.c:343
#3  sosend+0x78e sys/kern/uipc_socket.c:-1
#4  sendit+0x5a5 sys/kern/uipc_syscalls.c:785
#5  sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
#6  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#6  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
#7  Xsyscall+0x128
exclusive rwlock sbufsnd r = 0 (0xffff80000161bc70)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2  sblock+0xb6 sys/kern/uipc_socket2.c:536
#3  sosend+0x2e9 sys/kern/uipc_socket.c:639
#4  sendit+0x5a5 sys/kern/uipc_syscalls.c:785
#5  sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
#6  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#6  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
#7  Xsyscall+0x128
Process 97479 (systqmp) thread 0xffff800045ffe000 (301311)
shared rwlock systqmp r = 0 (0xffffffff839e36b8)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  taskq_thread+0x12a sys/kern/kern_task.c:442
#2  proc_trampoline+0x10
ddb{1}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 11050  12088K   12220K 166960K     12254        0
            pcb    17     12K      12K 166960K        33        0
         rtable   197      5K       7K 166960K       591        0
             pf    30     16K      24K 166960K        91        0
         ifaddr    36      6K       8K 166960K        80        0
        ifgroup    47      2K       2K 166960K        89        0
         sysctl     3      1K       9K 166960K         7        0
       counters    66     36K      37K 166960K        88        0
       ioctlops     0      0K       4K 166960K      1535        0
            iov     0      0K      16K 166960K         4        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1349     85K      85K 166960K      1587        0
      UFS quota     1     32K      32K 166960K         1        0
      UFS mount     5     36K      36K 166960K         5        0
            shm     2      1K       5K 166960K         3        0
         VM map     2      1K       1K 166960K         2        0
            sem     4      0K       0K 166960K         5        0
        dirhash    15      2K       3K 166960K        18        0
           ACPI  1692    195K     286K 166960K     12470        0
      file desc    16     54K      93K 166960K       343        0
          sigio     0      0K       0K 166960K         1        0
           proc    79    131K     180K 166960K       799        0
        subproc    63      3K       4K 166960K       153        0
    NFS srvsock     1      0K       0K 166960K         1        0
     NFS daemon     1     16K      16K 166960K         1        0
    ip_moptions     0      0K       0K 166960K        11        0
       in_multi    77      5K       6K 166960K       190        0
    ether_multi     1      0K       0K 166960K         1        0
            mrt     0      0K       0K 166960K         6        0
    ISOFS mount     1     32K      32K 166960K         1        0
  MSDOSFS mount     1     16K      16K 166960K         1        0
           ttys    55    254K     254K 166960K        55        0
           exec     0      0K       1K 166960K       500        0
   fusefs mount     1     32K      32K 166960K         1        0
            tdb     3      0K       0K 166960K         3        0
        VM swap     8     62K      64K 166960K        10        0
       UVM amap   207    166K     185K 166960K      4600        0
       UVM aobj     3      2K       2K 166960K         4        0
     pinsyscall    41     82K     106K 166960K      1743        0
        memdesc     1      4K       4K 166960K         1        0
    crypto data     1      1K       1K 166960K         1        0
    ip6_options     0      0K       0K 166960K         4        0
            NDP    10      0K       2K 166960K        53        0
           temp    35   9115K    9122K 166960K      7098        0
         kqueue    13     20K      26K 166960K        39        0
      SYN cache     2     16K      16K 166960K         2        0
ddb{1}> show all pools
Name      Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache    128       28    0        0     1     0     1     1     0     8    0
rtpcb      120       57    0       54     1     0     1     1     0     8    0
rtentry    176      197    0      107     6     0     6     6     0     8    0
unpcb      144       95    0       76     1     0     1     1     0     8    0
syncache   336        4    0        4     1     1     0     1     0     8    0
tcpcb      736       37    0       33     1     0     1     1     0     8    0
arp        136       32    0       16     1     0     1     1     0     8    0
inpcb      328      297    0      287     7     0     7     7     0     8    6
nd6        152       48    0       30     1     0     1     1     0     8    0
kcovpl      48       17    0       10     1     0     1     1     0     8    0
ppxss      1192       1    0        1     1     0     1     1     0     8    1
pffrag     232        1    0        0     1     0     1     1     0   482    0
pffrnode    88        1    0        0     1     0     1     1     0     8    0
pffrent     40        1    0        0     1     0     1     1     0     8    0
pfosfp      40     1428    0     1005     5     0     5     5     0     8    0
pfosfpen   112     1428    0      714    21     0    21    21     0     8    0
pfstlim    224        1    0        1     1     1     0     1     0     8    0
pfanchor   1288       4    0        1     1     0     1     1     0     8    0
pfstitem    24       36    0        5     1     0     1     1     0     8    0
pfstkey    128       36    0        5     1     0     1     1     0     8    0
pfstate    448       36    0        5     4     0     4     4     0     8    0
pfrule     1360      21    0       15     2     0     2     2     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256      803    0      349    35     3    32    32     0     8    0
art_table   40      804    0      349     6     0     6     6     0     8    0
art_node    32      197    0      105     1     0     1     1     0     8    0
sysvmsgpl   40        1    0        1     1     0     1     1     0     8    1
semapl      72        3    0        1     1     0     1     1     0     8    0
shmpl      120        1    0        1     1     1     0     1     0     8    0
dirhash    1024      21    0        2     3     0     3     3     0     8    0
dino2pl    256     1713    0      228    94     0    94    94     0     8    0
ffsino     296     1713    0      228   115     0   115   115     0     8    0
nchpl      144     2009    0      281    65     0    65    65     0     8    0
vnodes     216     2007    0        0   112     0   112   112     0     8    0
namei      1024    8322    0     8322     5     3     2     2     0     8    2
percpumem   16       60    0       11     1     0     1     1     0     8    0
kstatmem   264       45    0       22     2     0     2     2     0     8    0
scxspl     216     6801    0     6801     3     2     1     2     1     8    1
plimitpl   152       88    0       71     1     0     1     1     0     8    0
sigapl     424      651    0      605     7     1     6     7     0     8    0
knotepl    120      509    0        0    16     0    16    16     0     8    0
kqueuepl   224       38    0       29     1     0     1     1     0     8    0
pipepl     344      172    0      145     3     0     3     3     0     8    0
fdescpl    528      635    0      605     3     0     3     3     0     8    0
filepl     160     2585    0     2346    12     0    12    12     0     8    0
lockfpl    104       46    0       44     1     0     1     1     0     8    0
lockfspl    48       22    0       20     1     0     1     1     0     8    0
sessionpl  144       38    0       29     1     0     1     1     0     8    0
pgrppl      48       56    0       39     1     0     1     1     0     8    0
ucredpl    104      188    0      175     1     0     1     1     0     8    0
zombiepl   144      606    0      605     2     1     1     1     0     8    0
processpl  1232     651    0      605     6     1     5     5     0     8    0
procpl     664      821    0      770     7     1     6     6     0     8    1
sockpl     752      455    0      423    10     0    10    10     0     8    6
mcl64k     65536      2    0        0     1     0     1     1     0     8    0
mcl16k     16384      1    0        0     1     0     1     1     0     8    0
mcl8k      8192       2    0        0     1     0     1     1     0     8    0
mcl4k      4096     109    0        0    14     0    14    14     0     8    0
mcl2k      2048      18    0        0     3     0     3     3     0     8    0
mextrefs    64       17    0        0     1     0     1     1     0     8    0
mtagpl      96        2    0        0     1     0     1     1     0     8    0
mbufpl     256      172    0        0    11     0    11    11     0     8    0
bufpl      272     2439    0      105   156     0   156   156     0     8    0
anonpl      32     3765    0        0    31     0    31    31     0   247    0
amapchunkpl 152   12761    0    12370    26     5    21    23     0   158    3
amappl16   200     1690    0     1671     7     5     2     5     0     8    0
amappl15   192       10    0       10     1     1     0     1     0     8    0
amappl14   184      536    0      534     1     0     1     1     0     8    0
amappl13   176      143    0      131     1     0     1     1     0     8    0
amappl12   168      929    0      902     2     0     2     2     0     8    0
amappl11   160       38    0       37     1     0     1     1     0     8    0
amappl10   152       67    0       53     1     0     1     1     0     8    0
amappl9    144      301    0      301     1     1     0     1     0     8    0
amappl8    136      135    0      132     1     0     1     1     0     8    0
amappl7    128      167    0      153     1     0     1     1     0     8    0
amappl6    120      237    0      233     1     0     1     1     0     8    0
amappl5    112      103    0       92     1     0     1     1     0     8    0
amappl4    104      324    0      304     1     0     1     1     0     8    0
amappl3     96     2273    0     2194     3     0     3     3     0     8    0
amappl2     88      724    0      650     2     0     2     2     0     8    0
amappl1     80    11966    0    11372    16     2    14    15     0     8    0
amappl      88     3699    0     3564     5     0     5     5     0    92    0
uvmvnodes   80      101    0        0     3     0     3     3     0     8    0
dma32768   32768      1    0        1     1     1     0     1     0     8    0
dma4096    4096       1    0        1     1     1     0     1     0     8    0
dma1024    1024       2    0        1     1     0     1     1     0     8    0
dma256     256        6    0        6     1     1     0     1     0     8    0
dma128     128      253    0      253     1     1     0     1     0     8    0
dma64       64        6    0        6     1     1     0     1     0     8    0
dma32       32        7    0        7     1     1     0     1     0     8    0
dma16       16       18    0       17     1     0     1     1     0     8    0
aobjpl      72        3    0        1     1     0     1     1     0     8    0
uaddrrnd    24      635    0      605     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      635    0      605     1     0     1     1     0     8    0
vmmpekpl   168     7221    0     7168     3     0     3     3     0     8    0
vmmpepl    168    49811    0    48060    91     4    87    87     0   357    6
vmsppl     488      634    0      605     6     1     5     5     0     8    0
rwobjpl     80    17310    0    16320    25     2    23    25     0     8    0
pdppl      4096    1277    0     1210   119    44    75    85     0     8    8
pvpl        32    10024    0        0    82     1    81    81     0   265    0
pmappl     256      634    0      605     3     0     3     3     0     8    0
extentpl    40       45    0       27     1     0     1     1     0     8    0
phpool     112      459    0       54    12     0    12    12     0     8    0
ddb{1}> machine ddbcpu 0
Stopped at      x86_ipi_db+0x27:        addq    $0x8,%rsp
x86_ipi_db(ffffffff83949ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff83aee4c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83aee4c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173
softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83
dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862
Xsoftclock() at Xsoftclock+0x27
end of kernel
end trace frame: 0x7cdf0196b9c0, count: 8
ddb{0}> trace
x86_ipi_db(ffffffff83949ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff83aee4c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83aee4c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173
softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83
dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862
Xsoftclock() at Xsoftclock+0x27
end of kernel
end trace frame: 0x7cdf0196b9c0, count: -7
ddb{0}> machine ddbcpu 1
Stopped at      db_enter+0x25:  addq    $0x8,%rsp
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834c8077) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff83503f05,ffffffff83484dc7,3e1,ffffffff834357cf) at __assert+0x29 sys/kern/subr_prf.c:-1
rtrequest(b,ffff80002a34a588,3,ffff80002a34a628,0) at rtrequest+0xe63 sys/net/route.c:1089
rt_clone(ffff80002a34a698,fffff0806ff65460,0) at rt_clone+0x9b sys/net/route.c:381
route_mpath(fffff0806ff65448,ffff80002a34a7f4,0,0) at route_mpath+0x16f rt_match sys/net/route.c:358 [inline]
route_mpath(fffff0806ff65448,ffff80002a34a7f4,0,0) at route_mpath+0x16f rtalloc_mpath sys/net/route.c:474 [inline]
route_mpath(fffff0806ff65448,ffff80002a34a7f4,0,0) at route_mpath+0x16f sys/net/route.c:252
in_pcbselsrc(fffff0806d936cf8,ffff80002a34a7f0,fffff0806ff653d8) at in_pcbselsrc+0x200 sys/netinet/in_pcb.c:-1
rip_output(fffff0806d936c00,ffff80000161ba88,ffff80002a34a7f0,191) at rip_output+0x2bf sys/netinet/raw_ip.c:312
rip_send(ffff80000161ba88,fffff0806d936c00,0,0) at rip_send+0x13d sys/netinet/raw_ip.c:628
sosend(ffff80000161ba88,0,ffff80002a34a938,0,0,40c) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002a2d0d28,3,ffff80002a34aa30,40c,ffff80002a34aae0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002a2d0d28,ffff80002a34ab90,ffff80002a34aae0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff80002a34ab90) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a34ab90) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x8c79fc75b50, count: 1
ddb{1}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834c8077) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff83503f05,ffffffff83484dc7,3e1,ffffffff834357cf) at __assert+0x29 sys/kern/subr_prf.c:-1
rtrequest(b,ffff80002a34a588,3,ffff80002a34a628,0) at rtrequest+0xe63 sys/net/route.c:1089
rt_clone(ffff80002a34a698,fffff0806ff65460,0) at rt_clone+0x9b sys/net/route.c:381
route_mpath(fffff0806ff65448,ffff80002a34a7f4,0,0) at route_mpath+0x16f rt_match sys/net/route.c:358 [inline]
route_mpath(fffff0806ff65448,ffff80002a34a7f4,0,0) at route_mpath+0x16f rtalloc_mpath sys/net/route.c:474 [inline]
route_mpath(fffff0806ff65448,ffff80002a34a7f4,0,0) at route_mpath+0x16f sys/net/route.c:252
in_pcbselsrc(fffff0806d936cf8,ffff80002a34a7f0,fffff0806ff653d8) at in_pcbselsrc+0x200 sys/netinet/in_pcb.c:-1
rip_output(fffff0806d936c00,ffff80000161ba88,ffff80002a34a7f0,191) at rip_output+0x2bf sys/netinet/raw_ip.c:312
rip_send(ffff80000161ba88,fffff0806d936c00,0,0) at rip_send+0x13d sys/netinet/raw_ip.c:628
sosend(ffff80000161ba88,0,ffff80002a34a938,0,0,40c) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002a2d0d28,3,ffff80002a34aa30,40c,ffff80002a34aae0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002a2d0d28,ffff80002a34ab90,ffff80002a34aae0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff80002a34ab90) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a34ab90) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x8c79fc75b50, count: -14

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/09/19 15:42 openbsd f239e4190c56 853b104b .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "info->rti_ifa->ifa_ifp != NULL" failed in route.c
* Struck through repros no longer work on HEAD.