protection_fault: pf_anchor_global_RB_REMOVE (3)

Status: upstream: reported on 2026/03/28 06:46
Reported-by: syzbot+839c1d9df91ce3820b90@syzkaller.appspotmail.com
First crash: 175d, last: 34d
Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd protection_fault: pf_anchor_global_RB_REMOVE -1 73 1584d 1671d 3/4 fixed on 2022/06/27 02:23
openbsd protection_fault: pf_anchor_global_RB_REMOVE (2) -1 5 297d 444d 0/4 auto-obsoleted due to no activity on 2026/02/24 00:50

Sample crash report:
login: #kernel: protection fault trap, code=0
Stopped at      pf_anchor_global_RB_REMOVE+0x81:        movq    0(%r12),%r15
ddb{0}> 
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> show kasan
No such command
ddb{0}> trace
pf_anchor_global_RB_REMOVE(ffffffff83a94658,ffff80000158b760) at pf_anchor_global_RB_REMOVE+0x81 sys/net/pf_ruleset.c:82
pf_remove_if_empty_ruleset(ffff80000158bbf0) at pf_remove_if_empty_ruleset+0x12d sys/net/pf_ruleset.c:301
pfi_dynaddr_setup(ffff800001579780,0,1) at pfi_dynaddr_setup+0x671 sys/net/pf_if.c:508
pf_addr_setup(ffffffff83a94af0,ffff800001579780,0) at pf_addr_setup+0x46 sys/net/pf_ioctl.c:948
pfioctl(14900,cd604404,ffff800001615000,2,ffff80002a223238) at pfioctl+0xa380 sys/net/pf_ioctl.c:2385
VOP_IOCTL(fffff08061935c30,cd604404,ffff800001615000,2,fffff080097fd6e8,ffff80002a223238) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffff0806fbbe0a8,cd604404,ffff800001615000,ffff80002a223238) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537
sys_ioctl(ffff80002a223238,ffff80003c3fb580,ffff80003c3fb4d0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1
syscall(ffff80003c3fb580) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c3fb580) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xf36fdbc1f60, count: -10
ddb{0}> show registers
rdi               0xffffffff83a94658    pf_anchors
rsi               0xffff80000158b760
rbp               0xffff80003c3faf40
rbx               0xffffffff83a94658    pf_anchors
rdx                                0
rcx               0xffff80002a223238
rax               0xffffffff8397bff0    cpu_info_full_primary+0x1ff0
r8                             0x3fc
r9                0x8080808080808080
r10               0x9bc7ee44fece3989
r11               0x716d0ae5b955076f
r12               0xb0684cb3ceb27a60
r13                              0x1
r14               0xffff80000158b760
r15               0x58dba932b8e708b1
rip               0xffffffff827dd8f1    pf_anchor_global_RB_REMOVE+0x81
cs                               0x8
rflags                       0x10286    __ALIGN_SIZE+0xf286
rsp               0xffff80003c3faef0
ss                              0x10
pf_anchor_global_RB_REMOVE+0x81:        movq    0(%r12),%r15
ddb{0}> show proc
PROC (syz-executor) tid=26067 pid=65959 tcnt=3 stat=onproc
    flags process=0 proc=4000000<THREAD>
    runpri=32, usrpri=50, slppri=32, nice=20
    wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
    forw=0xffffffffffffffff, list=0xffff80002a223a00,0xffffffff83a6cca0
    process=0xffff80003c3d7040 user=0xffff80003c3f6000, vmspace=0xfffff0806ceaf208
    estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{0}> ps
   PID     TID   PPID   UID  S      PRLAGS     PFLAGS WAIT      COMMAND
 65959  313762   8671     0  2           0          0           syz-executor
 65959   87252   8671     0  7           0  0x4000000           syz-executor
*65959   26067   8671     0  7           0  0x4000000           syz-executor
 52467  300320  18605     0  2           0          0           syz-executor
 52467  193627  18605     0  3           0  0x4000080 fsleep    syz-executor
 37174  419490   2808     0  3      0x1000     0x2000 suspend   syz-executor
 37174  395729   2808     0  2      0x1000  0x4080000           syz-executor
 37174  362426   2808     0  3      0x1000  0x4080000 inode     syz-executor
 68844  329098  21906     0  2           0          0           syz-executor
 68844  356464  21906     0  2           0  0x4000000           syz-executor
 11529  436034  81681     0  2           0          0           syz-executor
 11529   68832  81681     0  2           0  0x4000000           syz-executor
 75428  202114   7533     0  2      0x2000    0x80000           syz-executor
 75428  395791   7533     0  4      0x2000  0x4080000           syz-executor
 75428  147281   7533     0  3      0x2000  0x4000000 suspend   syz-executor
 75428   80903   7533     0  4      0x2000  0x4080000           syz-executor
 30412   11518  80485     0  3           0       0x80 nanoslp   syz-executor
 30412  126715  80485     0  3           0  0x4000080 ttyin     syz-executor
 30412  370645  80485     0  3           0  0x4000000 inode     syz-executor
 30412  407004  80485     0  3           0  0x4000000 inode     syz-executor
 30412  266517  80485     0  3           0  0x4000000 inode     syz-executor
 30412  495358  80485     0  3           0  0x4000000 inode     syz-executor
 30412  193649  80485     0  3           0  0x4000080 fsleep    syz-executor
 88028  390647  46971     0  3           0       0x80 nanoslp   syz-executor
 88028  417389  46971     0  3           0  0x4000080 piperd    syz-executor
 88028  176361  46971     0  3           0  0x4000080 fsleep    syz-executor
 58808  407926      1     0  3           0       0x80 nanoslp   init
 21906  156044  28640     0  3         0x2       0x80 nanoslp   syz-executor
 80485  389646  28640     0  3         0x2       0x80 nanoslp   syz-executor
  8671  214961  28640     0  3         0x2       0x80 nanoslp   syz-executor
 46971  317076  28640     0  3         0x2       0x80 nanoslp   syz-executor
  2808   78525  28640     0  3         0x2       0x80 nanoslp   syz-executor
 81681  514885  28640     0  3         0x2       0x80 nanoslp   syz-executor
 18605   18027  28640     0  3         0x2       0x80 nanoslp   syz-executor
  7533  256485  28640     0  3         0x2       0x80 nanoslp   syz-executor
 28640  204685      1     0  2         0x2          0           syz-executor
  9300  160860      1    74  3   0x1100012       0x80 bpf       pflogd
 84031  140194      1    73  3   0x1100010       0x80 kqread    syslogd
 49601  447529      0     0  3     0x14000      0x200 bored     smr
 96720   51976      0     0  2     0x14000      0x200           zerothread
 27872   31348      0     0  3     0x14000      0x200 aiodoned  aiodoned
 42719  200471      0     0  3     0x14000      0x200 syncer    update
  4386  101393      0     0  3     0x14000      0x200 cleaner   cleaner
 58442  516184      0     0  3     0x14000      0x200 reaper    reaper
 58737  358477      0     0  3     0x14000      0x200 pgdaemon  pagedaemon
 89394  341696      0     0  3     0x14000      0x200 bored     viomb
 57792  126507      0     0  3     0x14000 0x40000200 acpi0     acpi0
 89311   33402      0     0  3     0x14000 0x40000200           idle1
 66315  369470      0     0  3     0x14000      0x200 bored     softnet1
 44411   50805      0     0  3     0x14000      0x200 bored     softnet0
 49048  396625      0     0  3     0x14000      0x200 bored     systqmp
 90087  436402      0     0  3     0x14000      0x200 bored     systq
 31234   57068      0     0  3     0x14000      0x200 tmoslp    softclockmp
 81528  215759      0     0  3     0x14000 0x40000200 tmoslp    softclock
 79239   96693      0     0  3     0x14000 0x40000200           idle0
     1  254074      0     0  3         0x2       0x80 wait      init
     0       0     -1     0  3     0x10000      0x200 scheduler swapper
ddb{0}> show all locks
Process 65959 (syz-executor) thread 0xffff80002a223238 (26067)
exclusive rwlock pf_lock r = 0 (0xffffffff839057b8)
#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  pfioctl+0x9cd9 sys/net/pf_ioctl.c:2339
#3  VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#4  vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537
#5  sys_ioctl+0x674 sys/kern/sys_generic.c:-1
#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 netlock r = 0 (0xffffffff8395ecf0)
#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  pfioctl+0x9cc4 sys/net/pf_ioctl.c:2338
#3  VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#4  vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537
#5  sys_ioctl+0x674 sys/kern/sys_generic.c:-1
#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 pfioctl_rw r = 0 (0xffffffff83905848)
#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  pfioctl+0x1d4 sys/net/pf_ioctl.c:2075
#3  VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#4  vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537
#5  sys_ioctl+0x674 sys/kern/sys_generic.c:-1
#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 kernel_lock &kernel_lock r = 0 (0xffffffff83b03540)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  vn_ioctl+0x4d sys/kern/vfs_vnops.c:520
#2  sys_ioctl+0x674 sys/kern/sys_generic.c:-1
#3  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#3  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#4  Xsyscall+0x128
Process 37174 (syz-executor) thread 0xffff800045ffdc90 (395729)
exclusive rrwlock inode r = 0 (0xfffff0806c771440)
#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  rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3  VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5  vn_write+0x18f sys/kern/vfs_vnops.c:411
#6  dofilewritev+0x2bd sys/kern/sys_generic.c:384
#7  sys_write+0xa2 sys/kern/sys_generic.c:300
#8  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#9  Xsyscall+0x128
Process 30412 (syz-executor) thread 0xffff80003bbb8fb0 (126715)
exclusive rrwlock inode r = 0 (0xfffff0806c7710c8)
#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  rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3  VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5  spec_open+0x2f2 sys/kern/spec_vnops.c:151
#6  VOP_OPEN+0x8b sys/kern/vfs_vops.c:138
#7  vn_open+0x7a5 sys/kern/vfs_vnops.c:183
#8  vndioctl+0xc43 sys/dev/vnd.c:458
#9  VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#10 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537
#11 sys_ioctl+0x674 sys/kern/sys_generic.c:-1
#12 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#12 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#13 Xsyscall+0x128
Process 30412 (syz-executor) thread 0xffff80002a223c98 (370645)
exclusive rrwlock inode r = 0 (0xfffff0806c771690)
#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  rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3  VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5  vfs_lookup+0x12b sys/kern/vfs_lookup.c:431
#6  namei+0x7c5 sys/kern/vfs_lookup.c:250
#7  domknodat+0xb4 sys/kern/vfs_syscalls.c:1531
#8  syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8  syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#9  Xsyscall+0x128
ddb{0}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 11048  12078K   12338K 166960K     12515        0
            pcb    17     12K      12K 166960K        61        0
         rtable   206      7K       8K 166960K       389        0
             pf    35     17K      25K 166960K        99        0
         ifaddr    40      7K       8K 166960K        56        0
        ifgroup    51      2K       2K 166960K        74        0
         sysctl     2      1K       9K 166960K        10        0
       counters    68     36K      38K 166960K       158        0
       ioctlops     2      8K       8K 166960K      1551        0
            iov     0      0K      12K 166960K         8        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1288     81K      82K 166960K      1526        0
      UFS quota     1     32K      32K 166960K         1        0
      UFS mount     5     36K      36K 166960K         5        0
            shm     2      1K       5K 166960K         8        0
         VM map     2      1K       1K 166960K         2        0
            sem    10      0K       0K 166960K        14        0
        dirhash    12      2K       2K 166960K        12        0
           ACPI  1734    201K     291K 166960K     11964        0
      file desc    18     65K      97K 166960K       319        0
          sigio     0      0K       0K 166960K         2        0
           proc    12     17K     164K 166960K       569        0
        subproc    72      4K       4K 166960K        72        0
    NFS srvsock     1      0K       0K 166960K         1        0
     NFS daemon     1     16K      16K 166960K         1        0
    ip_moptions     0      0K       0K 166960K        15        0
       in_multi    88      5K       6K 166960K       106        0
    ether_multi     1      0K       0K 166960K         2        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    67    307K     307K 166960K        67        0
           exec     0      0K       1K 166960K       402        0
   fusefs mount     1     32K      32K 166960K         1        0
     pfkey data     0      0K       0K 166960K         1        0
            tdb     3      0K       0K 166960K         3        0
        VM swap     8     62K      64K 166960K        10        0
       UVM amap   193     97K     186K 166960K      4679        0
       UVM aobj    11      2K       2K 166960K        11        0
     pinsyscall    23     46K     108K 166960K      1480        0
        memdesc     1      4K       4K 166960K         1        0
    crypto data     1      1K       1K 166960K         1        0
    ip6_options     0      0K       0K 166960K        10        0
            NDP    11      0K       2K 166960K        36        0
           temp    38   9118K    9130K 166960K      6423        0
         kqueue     3      4K      22K 166960K        69        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       42    0       42     1     1     0     1     0     8    0
rtentry    176      116    0       28     6     0     6     6     0     8    0
unpcb      144      299    0      293     7     1     6     6     0     8    5
syncache   336        5    0        5     1     1     0     1     0     8    0
tcpcb      736       53    0       49     1     0     1     1     0     8    0
arp        136       20    0        4     1     0     1     1     0     8    0
inpcb      328      338    0      334     6     5     1     6     0     8    0
nd6        152       24    0        3     1     0     1     1     0     8    0
pkpcb       40        4    0        4     1     1     0     1     0     8    0
kcovpl      48        8    0        0     1     0     1     1     0     8    0
ppxss      1192      43    0       43     1     1     0     1     0     8    0
pfstscr     40        2    0        0     1     0     1     1     0     8    0
pffrag     232        2    0        0     1     0     1     1     0   482    0
pffrnode    88        2    0        0     1     0     1     1     0     8    0
pffrent     40       34    0       32     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
pfrktable  1344       2    2        2     2     1     1     1     0     8    1
pfanchor   1288       5    0        5     2     1     1     1     0     8    1
pfstitem    24       36    0        0     1     0     1     1     0     8    0
pfstkey    128       36    0        0     2     0     2     2     0     8    0
pfstate    448       35    0        0     4     0     4     4     0     8    0
pfrule     1360      25    0       18     2     0     2     2     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256      485    0       89    29     1    28    29     0     8    0
art_table   40      486    0       89     5     0     5     5     0     8    0
art_node    32      116    0       40     1     0     1     1     0     8    0
semapl      72       12    0        4     1     0     1     1     0     8    0
shmpl      112        8    0        0     1     0     1     1     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino2pl    256     1928    0      464    93     0    93    93     0     8    0
ffsino     296     1928    0      464   114     0   114   114     0     8    0
nchpl      144     2369    0      663    64     0    64    64     0     8    0
rtmask      32        4    0        4     1     1     0     1     0     8    0
vnodes     216     2089    0        0   117     0   117   117     0     8    0
namei      1024    7313    0     7309     2     1     1     2     0     8    0
percpumem   16       95    0       45     1     0     1     1     0     8    0
pfiaddrpl  120        2    0        1     2     1     1     1     0     8    0
kstatmem   264       43    0       18     3     1     2     3     0     8    0
scsiplug    72        1    0        1     1     1     0     1     0     8    0
scxspl     216     8406    0     8406     9     8     1     8     1     8    1
plimitpl   152       59    0       46     1     0     1     1     0     8    0
sigapl     424      638    0      600     7     1     6     7     0     8    0
knotepl    120     1023    0        0    31     0    31    31     0     8    0
kqueuepl   224       69    0       67     1     0     1     1     0     8    0
pipepl     344      138    0      110     3     0     3     3     0     8    0
fdescpl    528      622    0      600     3     0     3     3     0     8    0
filepl     160     2911    0     2718    15     1    14    14     0     8    4
lockfpl    104       54    0       53     2     1     1     1     0     8    0
lockfspl    48       25    0       24     2     1     1     1     0     8    0
sessionpl  144       31    0       27     1     0     1     1     0     8    0
pgrppl      48       41    0       29     1     0     1     1     0     8    0
ucredpl    104      400    0      392     1     0     1     1     0     8    0
zombiepl   144      601    0      600     2     1     1     1     0     8    0
processpl  1232     638    0      600     5     0     5     5     0     8    0
procpl     664      941    0      885     5     0     5     5     0     8    0
sockpl     752      689    0      679    21     6    15    15     0     8   13
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     135    0        0    17     0    17    17     0     8    0
mcl2k      2048      20    0        0     3     0     3     3     0     8    0
mextrefs    64       19    0        0     1     0     1     1     0     8    0
mtagpl      96        4    0        0     1     0     1     1     0     8    0
mbufpl     256      171    0        0    11     0    11    11     0     8    0
bufpl      272     2704    0      105   174     0   174   174     0     8    0
anonpl      32     5926    0        0    48     0    48    48     0   247    0
amapchunkpl 152   13684    0    13110    26     3    23    23     0   158    0
amappl16   200     2216    0     2095    21    14     7    14     0     8    0
amappl15   192       12    0       12     1     1     0     1     0     8    0
amappl14   184      431    0      431     1     1     0     1     0     8    0
amappl13   176      183    0      181     1     0     1     1     0     8    0
amappl12   168      873    0      853     2     0     2     2     0     8    0
amappl11   160        2    0        2     1     1     0     1     0     8    0
amappl10   152       69    0       65     1     0     1     1     0     8    0
amappl9    144      289    0      289     1     1     0     1     0     8    0
amappl8    136      103    0      101     1     0     1     1     0     8    0
amappl7    128      165    0      159     1     0     1     1     0     8    0
amappl6    120      161    0      160     1     0     1     1     0     8    0
amappl5    112       99    0       97     1     0     1     1     0     8    0
amappl4    104      298    0      290     1     0     1     1     0     8    0
amappl3     96     2482    0     2395     3     0     3     3     0     8    0
amappl2     88      740    0      704     2     0     2     2     0     8    0
amappl1     80    11164    0    11007    15     6     9    15     0     8    0
amappl      88     3927    0     3758     4     0     4     4     0    92    0
uvmvnodes   80      103    0        0     3     0     3     3     0     8    0
dma65536   65536      1    0        1     1     1     0     1     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       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       10    0        0     1     0     1     1     0     8    0
uaddrrnd    24      622    0      600     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      622    0      600     1     0     1     1     0     8    0
vmmpekpl   168     6968    0     6933     2     0     2     2     0     8    0
vmmpepl    168    48215    0    47043    86    32    54    86     0   357    0
vmsppl     488      621    0      600     5     1     4     5     0     8    0
rwobjpl     80    16835    0    16188    24     2    22    24     0     8    0
pdppl      4096    1251    0     1200    99    48    51    87     0     8    0
pvpl        32    11748    0        0    97     2    95    95     0   265    0
pmappl     256      621    0      600     3     0     3     3     0     8    0
extentpl    40       46    0       28     1     0     1     1     0     8    0
phpool     112      451    0       55    12     0    12    12     0     8    0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
pf_anchor_global_RB_REMOVE(ffffffff83a94658,ffff80000158b760) at pf_anchor_global_RB_REMOVE+0x81 sys/net/pf_ruleset.c:82
pf_remove_if_empty_ruleset(ffff80000158bbf0) at pf_remove_if_empty_ruleset+0x12d sys/net/pf_ruleset.c:301
pfi_dynaddr_setup(ffff800001579780,0,1) at pfi_dynaddr_setup+0x671 sys/net/pf_if.c:508
pf_addr_setup(ffffffff83a94af0,ffff800001579780,0) at pf_addr_setup+0x46 sys/net/pf_ioctl.c:948
pfioctl(14900,cd604404,ffff800001615000,2,ffff80002a223238) at pfioctl+0xa380 sys/net/pf_ioctl.c:2385
VOP_IOCTL(fffff08061935c30,cd604404,ffff800001615000,2,fffff080097fd6e8,ffff80002a223238) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffff0806fbbe0a8,cd604404,ffff800001615000,ffff80002a223238) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537
sys_ioctl(ffff80002a223238,ffff80003c3fb580,ffff80003c3fb4d0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1
syscall(ffff80003c3fb580) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c3fb580) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xf36fdbc1f60, count: -10
ddb{0}> machine ddbcpu 1
Stopped at      x86_ipi_db+0x27:        addq    $0x8,%rsp
ddb{1}> 

Crashes (29):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/15 23:40 openbsd b903a0834f41 746171ee .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore protection_fault: pf_anchor_global_RB_REMOVE
2026/07/30 04:47 openbsd cc5b7dd097c6 2377cd3d .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore protection_fault: pf_anchor_global_RB_REMOVE
2026/07/09 21:00 openbsd 3dcca0f3a877 a0c310a3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/07/04 17:16 openbsd f9c9bf9f9903 fcece630 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore protection_fault: pf_anchor_global_RB_REMOVE
2026/06/22 02:52 openbsd 100b8423738f 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/06/17 16:49 openbsd abb34060f546 62cc6db3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/06/15 22:26 openbsd 3894b14b3da6 50bb0618 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/06/14 20:44 openbsd 009b3423c562 4f06757f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/06/14 01:03 openbsd 4abe9ebbcc38 4f06757f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/06/08 23:44 openbsd 867bf89e0da6 656e94c6 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/06/06 20:22 openbsd f12de7fa2924 cc095639 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/06/05 10:44 openbsd ce89dc54e9c4 48b6c3fa .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/06/04 00:28 openbsd e8e5aa2db9cf 197909be .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/05/23 18:39 openbsd 19a8be4fa5c4 c69befb3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/05/20 03:08 openbsd 3fe334830a75 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore protection_fault: pf_anchor_global_RB_REMOVE
2026/05/04 07:12 openbsd 126c93b16f30 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore protection_fault: pf_anchor_global_RB_REMOVE
2026/05/04 05:44 openbsd 126c93b16f30 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore protection_fault: pf_anchor_global_RB_REMOVE
2026/05/03 11:18 openbsd 3c6f8ccfe730 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/05/03 09:16 openbsd 3c6f8ccfe730 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/05/03 01:30 openbsd 3c6f8ccfe730 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/05/03 01:30 openbsd 3c6f8ccfe730 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/05/02 20:59 openbsd 3c6f8ccfe730 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/05/02 11:21 openbsd cdbf859d9674 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/05/02 08:54 openbsd cdbf859d9674 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/05/01 00:18 openbsd 2117c4c4e299 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/04/13 16:23 openbsd ef90b149a753 9530ccf9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/04/02 01:42 openbsd ffc378411de4 4b3d9a38 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/03/31 04:34 openbsd 0a71aa187b1b 4b3d9a38 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main protection_fault: pf_anchor_global_RB_REMOVE
2026/03/28 06:45 openbsd 9d790fdba930 4b3d9a38 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore protection_fault: pf_anchor_global_RB_REMOVE
* Struck through repros no longer work on HEAD.