uvm_fault(0xfffffd807f000000, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xfffffd807f000000, 0x0, 0, 1) -> e ifa_update_broadaddr(ffff800000ac6000,ffff800000af7e00,ffff800020ed08c0) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 end trace frame: 0xffff800020ed0770, count: 0 ddb{1}> trace ifa_update_broadaddr(ffff800000ac6000,ffff800000af7e00,ffff800020ed08c0) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800020ed08b0,ffff800000ac6000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd806f680000,80206913,ffff800020ed08b0,ffff800020e09018) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80669a6e60,80206913,ffff800020ed08b0,ffff800020e09018) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e09018,ffff800020ed09c8,ffff800020ed0a10) at sys_ioctl+0x4a5 syscall(ffff800020ed0a90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ed0a90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7035016ce60, count: -7 ddb{1}> show registers rdi 0xffffffff8142e53b ifa_update_broadaddr+0x1b rsi 0xd6 rbp 0xffff800020ed06d0 rbx 0x10 rdx 0xd7 rcx 0xffff800020ed9000 rax 0xffff800020ed9000 r8 0xffffffff8130b7c7 in_ioctl+0x387 r9 0x7 r10 0x3 r11 0xa1a757c4ddfcfb96 r12 0xffff800020ed08c0 r13 0xaa0014ac r14 0xffff800020ed08c0 r15 0 rip 0xffffffff8142e53f ifa_update_broadaddr+0x1f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020ed0690 ss 0x10 ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> show proc PROC (syz-executor.0) pid=403735 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=52, nice=20 forw=0xffffffffffffffff, list=0xffff800020e09288,0xffffffff828b3fa8 process=0xffff800020e9b388 user=0xffff800020ecb000, vmspace=0xfffffd807f000000 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 34571 69672 92780 0 2 0 syz-executor.0 *34571 403735 92780 0 7 0x4000000 syz-executor.0 951 470137 0 0 3 0x14200 acct acct 44278 210025 94418 0 3 0x2 biowait syz-executor.1 92780 57572 94418 0 3 0x82 nanosleep syz-executor.0 94418 113294 75446 0 3 0x82 thrsleep syz-fuzzer 94418 462796 75446 0 3 0x4000082 nanosleep syz-fuzzer 94418 63878 75446 0 3 0x4000082 thrsleep syz-fuzzer 94418 198291 75446 0 3 0x4000082 thrsleep syz-fuzzer 94418 429219 75446 0 3 0x4000082 thrsleep syz-fuzzer 94418 508771 75446 0 3 0x4000082 thrsleep syz-fuzzer 94418 367770 75446 0 3 0x4000082 thrsleep syz-fuzzer 94418 354714 75446 0 7 0x4000002 syz-fuzzer 94418 511651 75446 0 3 0x4000082 thrsleep syz-fuzzer 94418 184153 75446 0 3 0x4000082 nanosleep syz-fuzzer 75446 474534 12913 0 3 0x10008a pause ksh 12913 165358 19527 0 3 0x92 select sshd 28490 34343 1 0 3 0x100083 ttyin getty 19527 125892 1 0 3 0x80 select sshd 53507 1256 54284 74 3 0x100092 bpf pflogd 54284 209686 1 0 3 0x80 netio pflogd 52640 491633 65523 73 3 0x100090 kqread syslogd 65523 458390 1 0 3 0x100082 netio syslogd 76484 7874 1 77 3 0x100090 poll dhclient 27333 517647 1 0 3 0x80 poll dhclient 35529 456840 0 0 3 0x14200 bored smr 7016 206888 0 0 2 0x14200 zerothread 79140 236780 0 0 3 0x14200 aiodoned aiodoned 92838 302463 0 0 3 0x14200 syncer update 97304 92254 0 0 3 0x14200 cleaner cleaner 4311 3765 0 0 3 0x14200 reaper reaper 58387 354676 0 0 3 0x14200 pgdaemon pagedaemon 89230 92625 0 0 3 0x14200 bored crynlk 49756 22207 0 0 3 0x14200 bored crypto 93298 83552 0 0 3 0x40014200 acpi0 acpi0 61231 287995 0 0 3 0x40014200 idle1 90853 476224 0 0 3 0x14200 bored softnet 5581 419499 0 0 3 0x14200 bored systqmp 40395 129045 0 0 3 0x14200 bored systq 64688 444654 0 0 3 0x40014200 bored softclock 92357 68050 0 0 3 0x40014200 idle0 1 483877 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 34571 (syz-executor.0) thread 0xffff800020e09018 (403735) exclusive rwlock netlock r = 0 (0xffffffff82709b58) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 in_ioctl+0x1f5 #2 ifioctl+0xe70 sys/net/if.c:2282 #3 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #4 sys_ioctl+0x4a5 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8292e770) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 soo_ioctl+0x26a sys/kern/sys_socket.c:138 #2 sys_ioctl+0x4a5 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #4 Xsyscall+0x128 Process 44278 (syz-executor.1) thread 0xffff800020e09768 (210025) exclusive rrwlock inode r = 0 (0xfffffd806f08c808) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vget+0x1c8 sys/kern/vfs_subr.c:671 #6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1329 #8 ufs_lookup+0x14b7 sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #11 namei+0x63c sys/kern/vfs_lookup.c:249 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806844d700) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9513 6484K 7053K 78643K 11132 0 pcb 13 8K 8K 78643K 33 0 rtable 108 3K 5K 78643K 277 0 ifaddr 63 13K 13K 78643K 92 0 counters 43 33K 34K 78643K 49 0 ioctlops 0 0K 4K 78643K 1484 0 iov 0 0K 16K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1371 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 36 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 152 0 sigio 0 0K 0K 78643K 4 0 proc 60 63K 95K 78643K 449 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 26 0 in_multi 40 2K 2K 78643K 65 0 ether_multi 1 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 233 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 116 22K 38K 78643K 1444 0 UVM aobj 14 2K 2K 78643K 14 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 4 0 NDP 10 0K 0K 78643K 21 0 temp 91 3858K 3922K 78643K 2439 0 kqueue 3 4K 12K 78643K 27 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 7 0 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 35 0 33 1 0 1 1 0 8 0 rtentry 112 56 0 11 2 0 2 2 0 8 0 unpcb 120 125 0 115 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 409 0 409 1 1 0 1 0 8 0 tcpcb 544 75 0 70 1 0 1 1 0 8 0 inpcb 296 266 0 258 3 1 2 2 0 8 1 nd6 48 11 0 4 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 1 1 1 0 8 1 pffrag 232 3 0 3 2 1 1 1 0 482 1 pffrnode 88 3 0 3 2 1 1 1 0 8 1 pffrent 40 135 0 135 2 1 1 1 0 8 1 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 6 0 6 1 0 1 1 0 8 1 pfstitem 24 26 0 5 1 0 1 1 0 8 0 pfstkey 112 26 0 5 1 0 1 1 0 8 0 pfstate 328 26 0 5 2 0 2 2 0 8 0 pfrule 1360 23 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 222 0 2 14 0 14 14 0 8 0 art_table 32 223 0 2 2 0 2 2 0 8 0 art_node 16 55 0 14 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 26 0 16 1 0 1 1 0 8 0 shmpl 112 11 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1609 0 204 90 1 89 89 0 8 0 ffsino 272 1609 0 204 95 1 94 94 0 8 0 nchpl 144 1989 0 381 60 0 60 60 0 8 0 uvmvnodes 72 1771 0 0 33 0 33 33 0 8 0 vnodes 208 1771 0 0 94 0 94 94 0 8 0 namei 1024 5410 0 5410 3 2 1 1 0 8 1 percpumem 16 35 0 3 1 0 1 1 0 8 0 vmpool 560 2 0 2 1 0 1 1 0 8 1 pfiaddrpl 120 2 0 2 1 0 1 1 0 8 1 scxspl 192 5777 0 5776 8 7 1 7 0 8 0 plimitpl 152 17 0 9 1 0 1 1 0 8 0 sigapl 424 368 0 336 4 0 4 4 0 8 0 futexpl 56 2131 0 2131 2 1 1 1 0 8 1 knotepl 112 96 0 77 1 0 1 1 0 8 0 kqueuepl 144 110 0 107 1 0 1 1 0 8 0 pipepl 304 89 0 79 1 0 1 1 0 8 0 fdescpl 496 352 0 336 3 0 3 3 0 8 0 filepl 152 2147 0 2045 6 1 5 5 0 8 1 lockfpl 104 26 0 25 1 0 1 1 0 8 0 lockfspl 48 9 0 8 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 190 0 181 1 0 1 1 0 8 0 zombiepl 144 336 0 336 2 1 1 1 0 8 1 processpl 992 368 0 336 6 1 5 5 0 8 0 procpl 624 667 0 625 4 0 4 4 0 8 0 sockpl 400 434 0 414 6 3 3 4 0 8 1 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 199 0 0 24 0 24 24 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 251 0 0 15 0 15 15 0 8 0 bufpl 280 3503 0 132 241 0 241 241 0 8 0 anonpl 16 49032 0 31374 73 1 72 72 0 124 0 amapchunkpl 152 2173 0 2026 20 10 10 20 0 158 0 amappl16 192 1578 0 627 49 0 49 49 0 8 1 amappl15 184 9 0 8 2 1 1 1 0 8 0 amappl14 176 24 0 19 1 0 1 1 0 8 0 amappl13 168 87 0 82 1 0 1 1 0 8 0 amappl12 160 72 0 67 1 0 1 1 0 8 0 amappl11 152 56 0 41 1 0 1 1 0 8 0 amappl10 144 20 0 11 1 0 1 1 0 8 0 amappl9 136 450 0 446 1 0 1 1 0 8 0 amappl8 128 411 0 376 2 0 2 2 0 8 0 amappl7 120 117 0 106 1 0 1 1 0 8 0 amappl6 112 21 0 17 1 0 1 1 0 8 0 amappl5 104 250 0 233 1 0 1 1 0 8 0 amappl4 96 485 0 455 1 0 1 1 0 8 0 amappl3 88 107 0 102 1 0 1 1 0 8 0 amappl2 80 1922 0 1852 2 0 2 2 0 8 0 amappl1 72 17659 0 17220 23 13 10 18 0 8 0 amappl 80 922 0 878 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 13 0 0 1 0 1 1 0 8 0 uaddrrnd 24 354 0 338 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 354 0 338 1 0 1 1 0 8 0 vmmpekpl 168 6799 0 6766 2 0 2 2 0 8 0 vmmpepl 168 50540 0 48420 126 20 106 119 0 357 9 vmsppl 368 353 0 338 2 0 2 2 0 8 0 pdppl 4096 715 0 676 7 1 6 6 0 8 0 pvpl 32 168570 0 147774 178 4 174 174 0 265 3 pmappl 232 353 0 338 3 1 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 272 0 11 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82766ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff8292e568) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8292e568) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff800020e941f0,ffff80000004a400) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x19f end of kernel end trace frame: 0xc000f457e8, count: -6 ddb{0}> machine ddbcpu 1 Stopped at ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> trace ifa_update_broadaddr(ffff800000ac6000,ffff800000af7e00,ffff800020ed08c0) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800020ed08b0,ffff800000ac6000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd806f680000,80206913,ffff800020ed08b0,ffff800020e09018) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80669a6e60,80206913,ffff800020ed08b0,ffff800020e09018) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e09018,ffff800020ed09c8,ffff800020ed0a10) at sys_ioctl+0x4a5 syscall(ffff800020ed0a90) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ed0a90) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7035016ce60, count: -7