uvm_fault(0xfffffd806e8fd2e8, 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(0xfffffd806e8fd2e8, 0x0, 0, 1) -> e ifa_update_broadaddr(ffff800000af1800,ffff800000b12a00,ffff800021ed5460) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 end trace frame: 0xffff800021ed5310, count: 0 ddb{1}> trace ifa_update_broadaddr(ffff800000af1800,ffff800000b12a00,ffff800021ed5460) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800021ed5450,ffff800000af1800,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd80683e77f0,80206913,ffff800021ed5450,ffff800020e38128) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80665c2318,80206913,ffff800021ed5450,ffff800020e38128) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e38128,ffff800021ed5568,ffff800021ed55b0) at sys_ioctl+0x4a5 syscall(ffff800021ed5630) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021ed5630) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x497647f87a0, count: -7 ddb{1}> show registers rdi 0xffffffff820e4c0b ifa_update_broadaddr+0x1b rsi 0xab rbp 0xffff800021ed5270 rbx 0x10 rdx 0xac rcx 0xffff800021ed6000 rax 0xffff800021ed6000 r8 0xffffffff81d58f97 in_ioctl+0x387 r9 0x7 r10 0x3 r11 0x1520a93c3316fd1c r12 0xffff800021ed5460 r13 0 r14 0xffff800021ed5460 r15 0 rip 0xffffffff820e4c0f ifa_update_broadaddr+0x1f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021ed5230 ss 0x10 ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> show proc PROC (syz-executor.1) pid=34704 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=76, nice=20 forw=0xffffffffffffffff, list=0xffff800020e379d8,0xffffffff828b4398 process=0xffff800020eb9768 user=0xffff800021ed0000, vmspace=0xfffffd806e8fd2e8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 88526 456111 14048 0 7 0 syz-executor.1 *88526 34704 14048 0 7 0x4000000 syz-executor.1 65519 105572 41620 0 3 0x82 nanosleep syz-executor.0 87723 244550 0 0 3 0x14200 bored sosplice 71445 243584 1 0 3 0x100083 ttyin getty 14048 136711 41620 0 3 0x82 nanosleep syz-executor.1 41620 108101 81110 0 3 0x82 thrsleep syz-fuzzer 41620 152791 81110 0 3 0x4000082 thrsleep syz-fuzzer 41620 143948 81110 0 3 0x4000082 thrsleep syz-fuzzer 41620 355932 81110 0 3 0x4000082 thrsleep syz-fuzzer 41620 161506 81110 0 3 0x4000082 kqread syz-fuzzer 41620 195728 81110 0 3 0x4000082 thrsleep syz-fuzzer 41620 469722 81110 0 3 0x4000082 thrsleep syz-fuzzer 41620 345265 81110 0 3 0x4000082 thrsleep syz-fuzzer 41620 340036 81110 0 3 0x4000082 thrsleep syz-fuzzer 41620 83084 81110 0 3 0x4000082 thrsleep syz-fuzzer 81110 11542 4544 0 3 0x10008a pause ksh 4544 61326 21865 0 3 0x92 select sshd 21865 121149 1 0 3 0x80 select sshd 45074 205304 74885 74 3 0x100092 bpf pflogd 74885 172059 1 0 3 0x80 netio pflogd 3373 247365 31311 73 3 0x100090 kqread syslogd 31311 432860 1 0 3 0x100082 netio syslogd 57640 258793 1 77 3 0x100090 poll dhclient 55739 294292 1 0 3 0x80 poll dhclient 85558 477851 0 0 3 0x14200 bored smr 28239 442673 0 0 3 0x14200 pgzero zerothread 4003 516718 0 0 3 0x14200 aiodoned aiodoned 25010 444438 0 0 3 0x14200 syncer update 94520 223370 0 0 3 0x14200 cleaner cleaner 82033 375500 0 0 3 0x14200 reaper reaper 73459 59648 0 0 3 0x14200 pgdaemon pagedaemon 87028 207830 0 0 3 0x14200 bored crynlk 32214 459367 0 0 3 0x14200 bored crypto 43414 129096 0 0 3 0x40014200 acpi0 acpi0 41639 221898 0 0 3 0x40014200 idle1 24810 425922 0 0 3 0x14200 bored softnet 98337 21126 0 0 3 0x14200 bored systqmp 48168 406514 0 0 3 0x14200 bored systq 84688 131317 0 0 3 0x40014200 bored softclock 95094 103877 0 0 3 0x40014200 idle0 1 401490 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 88526 (syz-executor.1) thread 0xffff800020e38128 (34704) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9535 6430K 7112K 78643K 12125 0 pcb 13 8K 8K 78643K 61 0 rtable 102 15K 16K 78643K 494 0 ifaddr 92 18K 19K 78643K 157 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 55 0 ioctlops 0 0K 4K 78643K 1574 0 iov 0 0K 12K 78643K 55 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1608 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 13 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 104 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 1256 0 sigio 0 0K 0K 78643K 10 0 proc 61 63K 95K 78643K 543 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 19 0 in_multi 63 3K 3K 78643K 150 0 ether_multi 1 0K 0K 78643K 7 0 mrt 0 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 235 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 132 39K 55K 78643K 4360 0 UVM aobj 32 4K 4K 78643K 37 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 38 0 NDP 14 0K 0K 78643K 37 0 temp 121 3870K 3934K 78643K 6406 0 kqueue 3 4K 10K 78643K 22 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 10 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 41 0 39 1 0 1 1 0 8 0 rtentry 112 113 0 82 2 0 2 2 0 8 0 unpcb 120 171 0 161 1 0 1 1 0 8 0 syncache 264 10 0 10 3 3 0 1 0 8 0 tcpqe 32 567 0 567 1 1 0 1 0 8 0 tcpcb 544 1430 0 1417 3 2 1 2 0 8 0 inpcb 296 3067 0 3055 2 0 2 2 0 8 0 nd6 48 25 0 23 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 2 0 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pffrag 232 5 0 4 2 1 1 1 0 482 0 pffrnode 88 5 0 4 2 1 1 1 0 8 0 pffrent 40 100 0 99 2 1 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrke_plain 160 2 0 0 1 0 1 1 0 8 0 pfrktable 1344 25 0 18 1 0 1 1 0 8 0 pfstitem 24 43 0 13 1 0 1 1 0 8 0 pfstkey 112 43 0 13 1 0 1 1 0 8 0 pfstate 328 42 0 13 3 0 3 3 0 8 0 pfrule 1360 30 0 18 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 347 0 194 13 2 11 13 0 8 0 art_table 32 349 0 194 2 0 2 2 0 8 0 art_node 16 104 0 75 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 4 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 98 0 88 1 0 1 1 0 8 0 shmpl 112 34 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2766 0 1359 89 0 89 89 0 8 0 ffsino 272 2766 0 1359 96 1 95 95 0 8 0 nchpl 144 4415 0 2819 60 0 60 60 0 8 0 rtmask 32 4 0 2 1 0 1 1 0 8 0 uvmvnodes 72 3149 0 0 58 0 58 58 0 8 0 vnodes 208 3149 0 0 166 0 166 166 0 8 0 namei 1024 11468 0 11468 3 2 1 1 0 8 1 percpumem 16 38 0 6 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 560 6 0 5 1 0 1 1 0 8 0 pfiaddrpl 120 9 0 3 1 0 1 1 0 8 0 scxspl 192 13095 0 13095 9 8 1 6 0 8 1 plimitpl 152 41 0 33 1 0 1 1 0 8 0 sigapl 424 1470 0 1438 4 0 4 4 0 8 0 futexpl 56 14913 0 14913 2 1 1 1 0 8 1 knotepl 112 107 0 88 1 0 1 1 0 8 0 kqueuepl 144 69 0 67 1 0 1 1 0 8 0 pipepl 304 158 0 148 3 2 1 2 0 8 0 fdescpl 496 1454 0 1438 3 0 3 3 0 8 0 filepl 152 7118 0 7014 7 2 5 6 0 8 1 lockfpl 104 84 0 83 1 0 1 1 0 8 0 lockfspl 48 34 0 33 1 0 1 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 78 0 67 1 0 1 1 0 8 0 ucredpl 96 385 0 376 1 0 1 1 0 8 0 zombiepl 144 1438 0 1437 2 1 1 1 0 8 0 processpl 992 1470 0 1437 6 1 5 5 0 8 0 procpl 624 3508 0 3465 4 0 4 4 0 8 0 srpgc 64 3 0 3 1 1 0 1 0 8 0 sosppl 128 6 0 5 1 0 1 1 0 8 0 sockpl 400 3285 0 3261 6 2 4 4 0 8 1 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 8 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 187 0 0 23 0 23 23 0 8 0 mtagpl 96 169 0 0 5 0 5 5 0 8 0 mbufpl 256 518 0 0 33 2 31 31 0 8 0 bufpl 280 5087 0 133 354 0 354 354 0 8 0 anonpl 16 128686 0 110953 74 1 73 73 0 124 0 amapchunkpl 152 6901 0 6752 20 12 8 20 0 158 0 amappl16 192 5616 0 4647 50 1 49 49 0 8 0 amappl15 184 576 0 573 1 0 1 1 0 8 0 amappl14 176 616 0 609 1 0 1 1 0 8 0 amappl13 168 84 0 80 1 0 1 1 0 8 0 amappl12 160 58 0 54 1 0 1 1 0 8 0 amappl11 152 57 0 42 1 0 1 1 0 8 0 amappl10 144 589 0 584 1 0 1 1 0 8 0 amappl9 136 392 0 390 1 0 1 1 0 8 0 amappl8 128 393 0 352 2 0 2 2 0 8 0 amappl7 120 124 0 113 1 0 1 1 0 8 0 amappl6 112 28 0 22 1 0 1 1 0 8 0 amappl5 104 1306 0 1288 1 0 1 1 0 8 0 amappl4 96 557 0 530 1 0 1 1 0 8 0 amappl3 88 757 0 751 1 0 1 1 0 8 0 amappl2 80 11198 0 11127 2 0 2 2 0 8 0 amappl1 72 46797 0 46355 23 13 10 18 0 8 0 amappl 80 3786 0 3741 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 36 0 5 1 0 1 1 0 8 0 uaddrrnd 24 1460 0 1443 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1460 0 1443 1 0 1 1 0 8 0 vmmpekpl 168 12340 0 12303 2 0 2 2 0 8 0 vmmpepl 168 186390 0 184239 127 27 100 122 0 357 2 vmsppl 368 1459 0 1443 2 0 2 2 0 8 0 pdppl 4096 2927 0 2887 7 1 6 6 0 8 0 pvpl 32 401529 0 380570 175 3 172 175 0 265 1 pmappl 232 1459 0 1443 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 292 0 15 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(ffffffff82783ff0) 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(ffffffff82925f10) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82925f10) at __mp_lock+0x12e sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc nanotime(ffff8000230db0f8) at nanotime+0x6f tc_delta sys/kern/kern_tc.c:131 [inline] nanotime(ffff8000230db0f8) at nanotime+0x6f bintime sys/kern/kern_tc.c:266 [inline] nanotime(ffff8000230db0f8) at nanotime+0x6f sys/kern/kern_tc.c:277 clock_gettime(ffff800020e379d8,0,ffff8000230db0f8) at clock_gettime+0x9d sys/kern/kern_time.c:116 sys_clock_gettime(ffff800020e379d8,ffff8000230db160,ffff8000230db1b0) at sys_clock_gettime+0x4c sys/kern/kern_time.c:165 syscall(ffff8000230db230) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230db230) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffeb280, count: -12 ddb{0}> machine ddbcpu 1 Stopped at ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> trace ifa_update_broadaddr(ffff800000af1800,ffff800000b12a00,ffff800021ed5460) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800021ed5450,ffff800000af1800,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd80683e77f0,80206913,ffff800021ed5450,ffff800020e38128) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80665c2318,80206913,ffff800021ed5450,ffff800020e38128) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e38128,ffff800021ed5568,ffff800021ed55b0) at sys_ioctl+0x4a5 syscall(ffff800021ed5630) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021ed5630) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x497647f87a0, count: -7