panic: unhandled af NUM

Status: upstream: reported on 2026/07/26 10:16
Reported-by: syzbot+1f46c1a925c420e40420@syzkaller.appspotmail.com
First crash: 56d, last: 42d

Sample crash report:
panic: unhandlWeAdR NafI N0G
: SStPoLpp eNOdT  atLOWERED ON SYSCALL 3 249 EXIT 0 a
      db_enter+0x25:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
  48850  72370  32767        0x10          0    1  syz-executor
*203570   7129      0  0x10000002          0    0  syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834e4a88) at panic+0x1e5 sys/kern/subr_prf.c:198
unhandled_af(0) at unhandled_af+0x1a sys/net/if.c:-1
if_output_tso(ffff80000004e858,ffff80002a2207e0,ffff800000c43d70,fffffc806fa5ed10,5dc) at if_output_tso+0x22b
ip_output(fffffc806ca2f400,0,fffffc806fc821b8,800,0,fffffc806fc82250,17c5120c5acbefac) at ip_output+0x107f sys/netinet/ip_output.c:437
tcp_output(ffff8000015b32e0) at tcp_output+0x36e3 sys/netinet/tcp_output.c:1070
tcp_send(ffff80000159ebd0,fffffc806ca2f400,0,0) at tcp_send+0x191 sys/netinet/tcp_usrreq.c:859
sosend(ffff80000159ebd0,0,ffff80002a220c28,0,0,80) at sosend+0x804 sys/kern/uipc_socket.c:-1
dofilewritev(ffff800045ffd4c8,3,ffff80002a220c28,0,ffff80002a220ce0) at dofilewritev+0x2bd sys/kern/sys_generic.c:384
sys_write(ffff800045ffd4c8,ffff80002a220d90,ffff80002a220ce0) at sys_write+0xa2 sys/kern/sys_generic.c:300
syscall(ffff80002a220d90) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a220d90) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x6f9e19c98d40, count: 3
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{0}> 
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: unhandled af 0
ddb{0}> show kasan
No such command
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834e4a88) at panic+0x1e5 sys/kern/subr_prf.c:198
unhandled_af(0) at unhandled_af+0x1a sys/net/if.c:-1
if_output_tso(ffff80000004e858,ffff80002a2207e0,ffff800000c43d70,fffffc806fa5ed10,5dc) at if_output_tso+0x22b
ip_output(fffffc806ca2f400,0,fffffc806fc821b8,800,0,fffffc806fc82250,17c5120c5acbefac) at ip_output+0x107f sys/netinet/ip_output.c:437
tcp_output(ffff8000015b32e0) at tcp_output+0x36e3 sys/netinet/tcp_output.c:1070
tcp_send(ffff80000159ebd0,fffffc806ca2f400,0,0) at tcp_send+0x191 sys/netinet/tcp_usrreq.c:859
sosend(ffff80000159ebd0,0,ffff80002a220c28,0,0,80) at sosend+0x804 sys/kern/uipc_socket.c:-1
dofilewritev(ffff800045ffd4c8,3,ffff80002a220c28,0,ffff80002a220ce0) at dofilewritev+0x2bd sys/kern/sys_generic.c:384
sys_write(ffff800045ffd4c8,ffff80002a220d90,ffff80002a220ce0) at sys_write+0xa2 sys/kern/sys_generic.c:300
syscall(ffff80002a220d90) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a220d90) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x6f9e19c98d40, count: -12
ddb{0}> show registers
rdi                                0
rsi                              0x1
rbp               0xffff80002a2205c0
rbx               0xffffffff83982e07    cpu_info_full_primary+0x2e07
rdx                                0
rcx               0xffff800045ffd4c8
rax               0xffffffff83981ff0    cpu_info_full_primary+0x1ff0
r8                 0x101010101010101
r9                0x8080808080808080
r10               0x23e9571576e329a4
r11               0x936ce0122352c9a1
r12               0xffffffff83982c08    cpu_info_full_primary+0x2c08
r13                                0
r14                                0
r15                              0x1
rip               0xffffffff828ec345    db_enter+0x25
cs                               0x8
rflags                         0x246
rsp               0xffff80002a2205b0
ss                              0x10
db_enter+0x25:  addq    $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor) tid=203570 pid=7129 tcnt=1 stat=onproc
    flags process=10000002<EXEC,WAITEVENT> proc=0
    runpri=50, usrpri=50, slppri=32, nice=20
    wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
    forw=0xffffffffffffffff, list=0xffff800045ffcf98,0xffff80002a223778
    process=0xffff800045ff4008 user=0xffff80002a21b000, vmspace=0xfffffc800b1cb000
    estcpu=36, cpticks=26, pctcpu=0.16, user=1, sys=24, intr=1
ddb{0}> ps
   PID     TID   PPID   UID  S      PRLAGS     PFLAGS WAIT      COMMAND
 59234   94492  95567 32767  2        0x10          0           syz-executor
 96410  201343   7129     0  2         0x2          0           syz-executor
 66961  128260  30114 32767  2        0x10          0           syz-executor
 66961  255674  30114 32767  3        0x10  0x4000080 fsleep    syz-executor
 72370   48850  83150 32767  7        0x10          0           syz-executor
 42154  153276  55108 32767  3        0x10       0x80 piperd    syz-executor
 95567  242759  90123 32767  3        0x10       0x80 nanoslp   syz-executor
 50812    7237  37318 32767  3        0x10       0x80 nanoslp   syz-executor
  2959  479790  39420 32767  3        0x10       0x80 nanoslp   syz-executor
 30114  511383  72532 32767  3        0x10       0x80 nanoslp   syz-executor
 55108   72440   7129     0  3         0x2       0x80 wait      syz-executor
 37318  455888   7129     0  3         0x2       0x80 wait      syz-executor
 83150  182598   7129     0  3         0x2       0x80 wait      syz-executor
 90123  216836   7129     0  3         0x2       0x80 wait      syz-executor
 72532  250997   7129     0  3         0x2       0x80 wait      syz-executor
 39420   27332   7129     0  3         0x2       0x80 wait      syz-executor
* 7129  203570  42116     0  7  0x10000002          0           syz-executor
 42116  290593  44172     0  3    0x100002       0x88 sigsusp   ksh
 44172  159918  51918     0  3        0x10       0x88 kqread    sshd-session
 51918  161224  88903     0  3        0x12       0x80 kqread    sshd-session
 46443  195678      1     0  3    0x100003       0x80 ttyin     getty
 88903  460007      1     0  3           0       0x88 kqread    sshd
 42520  116820   9130    73  3   0x1100010       0x80 kqread    syslogd
  9130  128215      1     0  3    0x100002       0x80 sbwait    syslogd
 38081  121004      1     0  3    0x100000       0x80 kqread    resolvd
 12591  184910  59427    77  3    0x100012       0x80 kqread    dhcpleased
  7349  282506  59427    77  3    0x100012       0x80 kqread    dhcpleased
 59427  166563      1     0  3           0       0x80 kqread    dhcpleased
 90281  178614      0     0  3     0x14000      0x200 bored     smr
 29155  479214      0     0  2     0x14000      0x200           zerothread
 34366  434337      0     0  3     0x14000      0x200 aiodoned  aiodoned
 11097  106746      0     0  3     0x14000      0x200 syncer    update
 13596   95753      0     0  3     0x14000      0x200 cleaner   cleaner
 33443  421555      0     0  3     0x14000      0x200 reaper    reaper
 45704  146877      0     0  3     0x14000      0x200 pgdaemon  pagedaemon
 91890  433897      0     0  3     0x14000      0x200 bored     viomb
 61089  112555      0     0  3     0x14000 0x40000200 acpi0     acpi0
 90903  123433      0     0  3     0x14000 0x40000200           idle1
 31177  373902      0     0  3     0x14000      0x200 bored     softnet1
 48633  329027      0     0  3     0x14000      0x200 bored     softnet0
 23651   28067      0     0  3     0x14000      0x200 bored     systqmp
 89154  476491      0     0  3     0x14000      0x200 bored     systq
 77362  251896      0     0  3     0x14000      0x200 tmoslp    softclockmp
 60168   76223      0     0  3     0x14000 0x40000200 tmoslp    softclock
 66578  521324      0     0  3     0x14000 0x40000200           idle0
     1  259224      0     0  3         0x2       0x80 wait      init
     0       0     -1     0  3     0x10000      0x200 scheduler swapper
ddb{0}> show all locks
CPU 1:
exclusive mutex &pmap->pm_mtx r = 0 (0xfffffc806d1b6810)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  mtx_enter+0x4b4 sys/kern/kern_lock.c:487
#2  pmap_do_remove+0xa9 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline]
#2  pmap_do_remove+0xa9 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:441 [inline]
#2  pmap_do_remove+0xa9 sys/arch/amd64/amd64/pmap.c:1834
#3  uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1869
#4  uvm_unmap_remove+0x6c2 sys/uvm/uvm_map.c:2008
#5  uvmspace_exec+0x24c sys/uvm/uvm_map.c:3364
#6  sys_execve+0xc61 sys/kern/kern_exec.c:474
#7  syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#7  syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#8  Xsyscall+0x128
Process 96410 (syz-executor) thread 0xffff800045fed780 (201343)
exclusive rwlock uobjlk r = 0 (0xfffffc806e3e2490)
#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  uvm_unmap_kill_entry_withlock+0x140 sys/uvm/uvm_map.c:1873
#3  uvm_unmap_remove+0x6c2 sys/uvm/uvm_map.c:2008
#4  uvmspace_exec+0x24c sys/uvm/uvm_map.c:3364
#5  sys_execve+0xc61 sys/kern/kern_exec.c:474
#6  syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#6  syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#7  Xsyscall+0x128
exclusive rwlock amaplk r = 0 (0xfffffc806e3e2760)
#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  uvm_unmap_kill_entry_withlock+0xce uvm_map_lock_entry sys/uvm/uvm_map.c:464 [inline]
#2  uvm_unmap_kill_entry_withlock+0xce sys/uvm/uvm_map.c:1870
#3  uvm_unmap_remove+0x6c2 sys/uvm/uvm_map.c:2008
#4  uvmspace_exec+0x24c sys/uvm/uvm_map.c:3364
#5  sys_execve+0xc61 sys/kern/kern_exec.c:474
#6  syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#6  syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#7  Xsyscall+0x128
exclusive rwlock vmmaplk r = 0 (0xfffffc800b1cb6b8)
#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  vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5170
#3  uvmspace_exec+0x1ee sys/uvm/uvm_map.c:3345
#4  sys_execve+0xc61 sys/kern/kern_exec.c:474
#5  syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#5  syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#6  Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839f1fc0)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline]
#1  syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783
#2  Xsyscall+0x128
Process 7129 (syz-executor) thread 0xffff800045ffd4c8 (203570)
exclusive rwlock inet46 r = 0 (0xffff80000159ebf0)
#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  dofilewritev+0x2bd sys/kern/sys_generic.c:384
#4  sys_write+0xa2 sys/kern/sys_generic.c:300
#5  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#5  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#6  Xsyscall+0x128
shared rwlock netlock r = 0 (0xffffffff8391e690)
#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  dofilewritev+0x2bd sys/kern/sys_generic.c:384
#5  sys_write+0xa2 sys/kern/sys_generic.c:300
#6  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#6  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#7  Xsyscall+0x128
exclusive rwlock sbufsnd r = 0 (0xffff80000159edb8)
#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  dofilewritev+0x2bd sys/kern/sys_generic.c:384
#5  sys_write+0xa2 sys/kern/sys_generic.c:300
#6  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#6  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#7  Xsyscall+0x128
ddb{0}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 11045  12014K   12034K 166960K     12142        0
            pcb    17     12K      12K 166960K        17        0
         rtable   199      5K       7K 166960K       373        0
             pf    27     16K      16K 166960K        31        0
         ifaddr    34      6K       7K 166960K        44        0
        ifgroup    42      1K       2K 166960K        50        0
         sysctl     3      1K       9K 166960K         7        0
       counters    66     36K      37K 166960K        70        0
       ioctlops     0      0K       4K 166960K        36        0
            iov     0      0K       8K 166960K        13        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1287     81K      81K 166960K      1587        0
      UFS quota     1     32K      32K 166960K         1        0
      UFS mount     5     36K      36K 166960K         5        0
            shm     2      1K       9K 166960K         7        0
         VM map     2      1K       1K 166960K         2        0
            sem    12      1K       1K 166960K        18        0
        dirhash    12      2K       2K 166960K        12        0
           ACPI  1734    201K     291K 166960K     11964        0
      file desc    19     66K     121K 166960K       396        0
          sigio     0      0K       0K 166960K         1        0
           proc    58     99K     147K 166960K       525        0
        subproc    54      3K       4K 166960K       252        0
    NFS srvsock     1      0K       0K 166960K         1        0
     NFS daemon     1     16K      16K 166960K         1        0
    ip_moptions     0      0K       0K 166960K        21        0
       in_multi    77      5K       6K 166960K       105        0
    ether_multi     1      0K       0K 166960K         1        0
            mrt     0      0K       0K 166960K        10        0
    ISOFS mount     1     32K      32K 166960K         1        0
  MSDOSFS mount     1     16K      16K 166960K         1        0
           ttys    67    307K     307K 166960K        67        0
           exec     0      0K       1K 166960K       411        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   189    125K     161K 166960K      4737        0
       UVM aobj    75     10K      10K 166960K        75        0
     pinsyscall    40     80K     111K 166960K      1526        0
        memdesc     1      4K       4K 166960K         1        0
    crypto data     1      1K       1K 166960K         1        0
    ip6_options     0      0K       0K 166960K        12        0
            NDP     9      0K       2K 166960K        27        0
           temp    29   9118K    9130K 166960K      4550        0
         kqueue    13     20K      26K 166960K        68        0
      SYN cache     2     16K      16K 166960K         2        0
ddb{0}> 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       48    0       45     1     0     1     1     0     8    0
rtentry    176      116    0       25     6     0     6     6     0     8    0
unpcb      144      167    0      149     1     0     1     1     0     8    0
syncache   336        9    0        9     1     0     1     1     0     8    1
tcpcb      736      149    0      144     7     0     7     7     0     8    6
arp        136       19    0        5     1     0     1     1     0     8    0
ipq         40        1    0        0     1     0     1     1     0     8    0
ipqe        40        1    0        0     1     0     1     1     0     8    0
inpcb      328      328    0      318     7     0     7     7     0     8    5
ip6q        72        1    0        0     1     0     1     1     0     8    0
ip6af       40        1    0        0     1     0     1     1     0     8    0
nd6        152       28    0        7     2     0     2     2     0     8    1
kcovpl      48       28    0       22     1     0     1     1     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256      485    0       91    31     0    31    31     0     8    1
art_table   40      486    0       91     5     0     5     5     0     8    0
art_node    32      116    0       33     1     0     1     1     0     8    0
sysvmsgpl   40        5    0        3     1     0     1     1     0     8    0
semapl      72       14    0        4     1     0     1     1     0     8    0
shmpl      112       72    0        0     3     0     3     3     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino2pl    256     1871    0      385    93     0    93    93     0     8    0
ffsino     296     1871    0      385   115     0   115   115     0     8    0
nchpl      144     2326    0      616    64     0    64    64     0     8    0
vnodes     216     2132    0        0   119     0   119   119     0     8    0
namei      1024    7170    0     7170     1     0     1     1     0     8    1
percpumem   16       51    0        2     1     0     1     1     0     8    0
kstatmem   264       25    0        4     2     0     2     2     0     8    0
scxspl     216     7787    0     7787     4     3     1     3     1     8    1
plimitpl   152       97    0       75     2     0     2     2     0     8    0
sigapl     424      660    0      612     7     0     7     7     0     8    0
knotepl    120      342    0        0    11     0    11    11     0     8    0
kqueuepl   224       71    0       62     1     0     1     1     0     8    0
pipepl     344      201    0      174     4     0     4     4     0     8    0
fdescpl    528      644    0      613     3     0     3     3     0     8    0
filepl     160     3053    0     2863    13     0    13    13     0     8    3
lockfpl    104      134    0      132     1     0     1     1     0     8    0
lockfspl    48       30    0       28     1     0     1     1     0     8    0
sessionpl  144      117    0      102     1     0     1     1     0     8    0
pgrppl      48      148    0      125     1     0     1     1     0     8    0
ucredpl    104      464    0      447     1     0     1     1     0     8    0
zombiepl   144      615    0      612     1     0     1     1     0     8    0
processpl  1232     660    0      612     5     0     5     5     0     8    0
procpl     664      926    0      877     6     0     6     6     0     8    0
sosppl     176        5    0        5     1     0     1     1     0     8    1
sockpl     752      544    0      513    10     0    10    10     0     8    6
mcl64k     65536      6    0        0     1     0     1     1     0     8    0
mcl16k     16384      5    0        0     1     0     1     1     0     8    0
mcl12k     12288      3    0        0     1     0     1     1     0     8    0
mcl9k128   9344       1    0        0     1     0     1     1     0     8    0
mcl8k      8192       4    0        0     1     0     1     1     0     8    0
mcl4k      4096     126    0        0    16     0    16    16     0     8    0
mcl2k      2048      19    0        0     3     0     3     3     0     8    0
mextrefs    64       19    0        0     1     0     1     1     0     8    0
mtagpl      96        2    0        0     1     0     1     1     0     8    0
mbufpl     256     1196    0        0    75     0    75    75     0     8    0
bufpl      272     2680    0      102   172     0   172   172     0     8    0
anonpl      32     8516    0        0    69     0    69    69     0   247    0
amapchunkpl 152   14705    0    14313    35     1    34    35     0   158   14
amappl16   200     2376    0     2357    16     2    14    14     0     8    9
amappl15   192        8    0        8     1     1     0     1     0     8    0
amappl14   184      416    0      415     1     0     1     1     0     8    0
amappl13   176      125    0      115     1     0     1     1     0     8    0
amappl12   168      898    0      870     2     0     2     2     0     8    0
amappl11   160        7    0        7     1     1     0     1     0     8    0
amappl10   152       62    0       52     1     0     1     1     0     8    0
amappl9    144      267    0      267     1     1     0     1     0     8    0
amappl8    136       96    0       94     1     0     1     1     0     8    0
amappl7    128      154    0      143     1     0     1     1     0     8    0
amappl6    120      165    0      164     1     0     1     1     0     8    0
amappl5    112      103    0       96     1     0     1     1     0     8    0
amappl4    104      280    0      263     1     0     1     1     0     8    0
amappl3     96     2499    0     2423     4     1     3     3     0     8    0
amappl2     88      806    0      735     2     0     2     2     0     8    0
amappl1     80    12397    0    11843    16     0    16    16     0     8    1
amappl      88     3964    0     3833     5     0     5     5     0    92    0
uvmvnodes   80      101    0        0     3     0     3     3     0     8    0
dma4096    4096       1    0        1     1     1     0     1     0     8    0
dma1024    1024       1    0        0     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       74    0        0     2     0     2     2     0     8    0
uaddrrnd    24      644    0      613     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      644    0      613     1     0     1     1     0     8    0
vmmpekpl   168     7917    0     7873     3     0     3     3     0     8    0
vmmpepl    168    51597    0    49846   105     0   105   105     0   357   16
vmsppl     488      643    0      613     7     2     5     6     0     8    0
rwobjpl     80    18152    0    17201    27     1    26    26     0     8    0
pdppl      4096    1295    0     1226   119    40    79    95     0     8   10
pvpl        32    15538    0        0   126     0   126   126     0   265    0
pmappl     256      643    0      613     4     1     3     3     0     8    0
extentpl    40       46    0       28     1     0     1     1     0     8    0
phpool     112      532    0       43    14     0    14    14     0     8    0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834e4a88) at panic+0x1e5 sys/kern/subr_prf.c:198
unhandled_af(0) at unhandled_af+0x1a sys/net/if.c:-1
if_output_tso(ffff80000004e858,ffff80002a2207e0,ffff800000c43d70,fffffc806fa5ed10,5dc) at if_output_tso+0x22b
ip_output(fffffc806ca2f400,0,fffffc806fc821b8,800,0,fffffc806fc82250,17c5120c5acbefac) at ip_output+0x107f sys/netinet/ip_output.c:437
tcp_output(ffff8000015b32e0) at tcp_output+0x36e3 sys/netinet/tcp_output.c:1070
tcp_send(ffff80000159ebd0,fffffc806ca2f400,0,0) at tcp_send+0x191 sys/netinet/tcp_usrreq.c:859
sosend(ffff80000159ebd0,0,ffff80002a220c28,0,0,80) at sosend+0x804 sys/kern/uipc_socket.c:-1
dofilewritev(ffff800045ffd4c8,3,ffff80002a220c28,0,ffff80002a220ce0) at dofilewritev+0x2bd sys/kern/sys_generic.c:384
sys_write(ffff800045ffd4c8,ffff80002a220d90,ffff80002a220ce0) at sys_write+0xa2 sys/kern/sys_generic.c:300
syscall(ffff80002a220d90) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a220d90) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x6f9e19c98d40, count: -12
ddb{0}> machine ddbcpu 1

Crashes (5):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/09 05:22 openbsd 350de6efe927 5d63f80b .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid panic: unhandled af NUM
2026/08/01 20:02 openbsd 59ec3ab4d107 e611ffe1 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid panic: unhandled af NUM
2026/07/29 21:54 openbsd 92d0a7b388e6 b63596d1 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid panic: unhandled af NUM
2026/07/29 19:34 openbsd 92d0a7b388e6 b63596d1 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid panic: unhandled af NUM
2026/07/26 10:15 openbsd dd404cb12ba6 492bab15 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid panic: unhandled af NUM
* Struck through repros no longer work on HEAD.