uvm_fault(0xffffffff828abf60, 0xffff800000b1f000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff828abf60, 0xffff800000b1f000, 0, 1) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff8000230fb2a0, count: 0 ddb{1}> trace memcpy() at memcpy+0x15 rtrequest(1,ffff8000230fb2e0,4,0,0) at rtrequest+0x85e sys/net/route.c:930 in6_update_ifa(ffff800000af3000,ffff8000230fb650,0) at in6_update_ifa+0x1742 sys/netinet6/in6.c:810 in6_ioctl_change_ifaddr(8080691a,ffff8000230fb650,ffff800000af3000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd806863dc98,8080691a,ffff8000230fb650,ffff800020e22768) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd806ca44698,8080691a,ffff8000230fb650,ffff800020e22768) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e22768,ffff8000230fb768,ffff8000230fb7b0) at sys_ioctl+0x4a5 syscall(ffff8000230fb830) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230fb830) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf6e2357be70, count: -9 ddb{1}> show registers rdi 0xffff800000b1e1c0 rsi 0xffff800000b1f000 rbp 0xffff8000230fb1a0 rbx 0xffff800000b1ef40 rdx 0xe8 rcx 0x5 rax 0xfffffffffffff1c0 r8 0x70 r9 0x1 r10 0xb8848ef6d5dc3f90 r11 0xffff800000b1e100 r12 0xffff800000b1e100 r13 0xe8 r14 0 r15 0xfffffd8068771af8 rip 0xffffffff818b75e5 memcpy+0x15 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff8000230fb138 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor.1) pid=134583 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=60, nice=20 forw=0xffffffffffffffff, list=0xffff800020e224f8,0xffffffff828ee200 process=0xffff800020e09730 user=0xffff8000230f6000, vmspace=0xfffffd807efff730 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 83373 319978 91799 0 7 0 syz-executor.1 *83373 134583 91799 0 7 0x4000000 syz-executor.1 38589 108024 0 0 3 0x14200 bored sosplice 91799 83248 12277 0 3 0x82 nanosleep syz-executor.1 62818 326254 12277 0 3 0x2 biowait syz-executor.0 12277 42350 57548 0 3 0x82 thrsleep syz-fuzzer 12277 151463 57548 0 3 0x4000082 nanosleep syz-fuzzer 12277 306069 57548 0 3 0x4000082 thrsleep syz-fuzzer 12277 247123 57548 0 3 0x4000082 kqread syz-fuzzer 12277 261521 57548 0 3 0x4000082 thrsleep syz-fuzzer 12277 339635 57548 0 3 0x4000082 thrsleep syz-fuzzer 12277 426593 57548 0 3 0x4000082 thrsleep syz-fuzzer 12277 21537 57548 0 3 0x4000082 thrsleep syz-fuzzer 12277 253875 57548 0 3 0x4000082 nanosleep syz-fuzzer 12277 96171 57548 0 3 0x4000082 thrsleep syz-fuzzer 57548 164098 69269 0 3 0x10008a pause ksh 69269 273097 41360 0 3 0x92 select sshd 27499 174297 1 0 3 0x100083 ttyin getty 41360 165377 1 0 3 0x80 select sshd 11797 476265 4896 74 3 0x100092 bpf pflogd 4896 200118 1 0 3 0x80 netio pflogd 9933 84455 95897 73 3 0x100090 kqread syslogd 95897 291375 1 0 3 0x100082 netio syslogd 91208 299139 1 77 3 0x100090 poll dhclient 68246 27728 1 0 3 0x80 poll dhclient 7104 281229 0 0 3 0x14200 bored smr 56569 17032 0 0 3 0x14200 pgzero zerothread 45665 399143 0 0 3 0x14200 aiodoned aiodoned 41413 131665 0 0 3 0x14200 syncer update 38394 145785 0 0 3 0x14200 cleaner cleaner 75270 91012 0 0 3 0x14200 reaper reaper 10850 311923 0 0 3 0x14200 pgdaemon pagedaemon 72987 512686 0 0 3 0x14200 bored crynlk 32869 37645 0 0 3 0x14200 bored crypto 77646 84631 0 0 3 0x40014200 acpi0 acpi0 91749 193853 0 0 3 0x40014200 idle1 56345 324898 0 0 3 0x14200 bored softnet 56120 20379 0 0 3 0x14200 bored systqmp 47178 228214 0 0 3 0x14200 bored systq 40249 43804 0 0 3 0x40014200 bored softclock 81956 138011 0 0 3 0x40014200 idle0 1 206141 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 83373 (syz-executor.1) thread 0xffff800020e22768 (134583) exclusive rwlock netlock r = 0 (0xffffffff82731458) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 in6_ioctl_change_ifaddr+0x155 sys/netinet6/in6.c:295 #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 (0xffffffff8291e8a8) #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 62818 (syz-executor.0) thread 0xffff800020dddad8 (326254) exclusive rrwlock inode r = 0 (0xfffffd806e332098) #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 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x13e sys/ufs/ffs/ffs_vfsops.c:1358 #5 ffs_inode_alloc+0x1e2 sys/ufs/ffs/ffs_alloc.c:394 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #7 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:3051 #9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b205b38) #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 domkdirat+0x75 sys/kern/vfs_syscalls.c:3036 #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 9492 6531K 6854K 78643K 10733 0 pcb 13 8K 8K 78643K 31 0 rtable 97 3K 3K 78643K 218 0 ifaddr 49 11K 11K 78643K 68 0 counters 43 33K 34K 78643K 47 0 ioctlops 0 0K 4K 78643K 1489 0 iov 0 0K 16K 78643K 8 0 mount 1 1K 1K 78643K 1 0 vnodes 1224 77K 77K 78643K 1268 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 0K 0K 78643K 14 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 105 0 sigio 0 0K 0K 78643K 12 0 proc 61 63K 83K 78643K 450 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 22 0 in_multi 31 2K 2K 78643K 39 0 ether_multi 1 0K 0K 78643K 3 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 207 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 117 22K 23K 78643K 1265 0 UVM aobj 10 2K 2K 78643K 10 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 10 0 NDP 7 0K 0K 78643K 13 0 temp 83 3858K 3922K 78643K 3959 0 kqueue 3 4K 5K 78643K 5 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 6 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 19 0 17 1 0 1 1 0 8 0 rtentry 112 46 0 6 2 0 2 2 0 8 0 unpcb 120 146 0 136 1 0 1 1 0 8 0 syncache 264 6 0 6 2 1 1 1 0 8 1 tcpqe 32 32 0 32 1 0 1 1 0 8 1 tcpcb 544 46 0 40 1 0 1 1 0 8 0 inpcb 296 218 0 208 2 0 2 2 0 8 1 nd6 48 6 0 2 1 0 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 pfstitem 24 17 0 0 1 0 1 1 0 8 0 pfstkey 112 17 0 0 1 0 1 1 0 8 0 pfstate 328 17 0 0 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 256 188 0 16 12 0 12 12 0 8 0 art_table 32 189 0 16 2 0 2 2 0 8 0 art_node 16 44 0 8 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 9 1 0 1 1 0 8 0 semapl 112 12 0 2 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 1528 0 121 89 0 89 89 0 8 0 ffsino 272 1528 0 121 94 0 94 94 0 8 0 nchpl 144 1863 0 254 60 0 60 60 0 8 0 uvmvnodes 72 1608 0 0 30 0 30 30 0 8 0 vnodes 208 1608 0 0 85 0 85 85 0 8 0 namei 1024 4941 0 4940 1 0 1 1 0 8 0 percpumem 16 34 0 2 1 0 1 1 0 8 0 vmpool 560 2 0 2 1 0 1 1 0 8 1 scxspl 192 5458 0 5457 8 1 7 7 0 8 6 plimitpl 152 21 0 13 1 0 1 1 0 8 0 sigapl 424 321 0 289 4 0 4 4 0 8 0 futexpl 56 1324 0 1324 1 0 1 1 0 8 1 knotepl 112 63 0 44 1 0 1 1 0 8 0 kqueuepl 144 14 0 12 1 0 1 1 0 8 0 pipelkpl 48 95 0 85 1 0 1 1 0 8 0 pipepl 120 190 0 171 1 0 1 1 0 8 0 fdescpl 496 305 0 289 3 0 3 3 0 8 0 filepl 152 1754 0 1653 5 0 5 5 0 8 1 lockfpl 104 9 0 8 1 0 1 1 0 8 0 lockfspl 48 5 0 4 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 112 0 103 1 0 1 1 0 8 0 zombiepl 144 289 0 289 1 0 1 1 0 8 1 processpl 984 321 0 289 5 0 5 5 0 8 0 procpl 624 505 0 463 4 0 4 4 0 8 0 sosppl 128 9 0 9 1 0 1 1 0 8 1 sockpl 400 383 0 361 4 0 4 4 0 8 1 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 161 0 0 20 0 20 20 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 214 0 0 13 0 13 13 0 8 0 bufpl 280 3468 0 133 239 0 239 239 0 8 0 anonpl 16 43798 0 27608 67 1 66 66 0 124 0 amapchunkpl 152 1506 0 1343 9 0 9 9 0 158 2 amappl16 192 1292 0 436 44 0 44 44 0 8 0 amappl15 184 9 0 7 1 0 1 1 0 8 0 amappl14 176 24 0 20 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 10 0 9 2 1 1 1 0 8 0 amappl11 152 52 0 37 1 0 1 1 0 8 0 amappl10 144 15 0 11 1 0 1 1 0 8 0 amappl9 136 351 0 348 1 0 1 1 0 8 0 amappl8 128 387 0 355 2 0 2 2 0 8 0 amappl7 120 123 0 112 1 0 1 1 0 8 0 amappl6 112 27 0 21 1 0 1 1 0 8 0 amappl5 104 355 0 339 1 0 1 1 0 8 0 amappl4 96 486 0 458 1 0 1 1 0 8 0 amappl3 88 101 0 95 1 0 1 1 0 8 0 amappl2 80 1491 0 1419 2 0 2 2 0 8 0 amappl1 72 16889 0 16441 23 10 13 18 0 8 3 amappl 80 755 0 710 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 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 307 0 291 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 307 0 291 1 0 1 1 0 8 0 vmmpekpl 168 6539 0 6505 2 0 2 2 0 8 0 vmmpepl 168 44410 0 42395 117 6 111 111 0 357 23 vmsppl 368 306 0 291 2 0 2 2 0 8 0 pdppl 4096 621 0 582 6 0 6 6 0 8 1 pvpl 32 150700 0 131388 161 0 161 161 0 265 4 pmappl 232 306 0 291 2 0 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 257 0 3 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(ffffffff82750ff0) 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(ffffffff8291e6a0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8291e6a0) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff8000230f5d40,ffff80000004a400) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x19f sys_clock_gettime(ffff800020e224f8,ffff8000230f5e60,ffff8000230f5eb0) at sys_clock_gettime+0x44 sys/kern/kern_time.c:165 syscall(ffff8000230f5f30) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230f5f30) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffeb110, count: -9 ddb{0}> machine ddbcpu 1 Stopped at memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> trace memcpy() at memcpy+0x15 rtrequest(1,ffff8000230fb2e0,4,0,0) at rtrequest+0x85e sys/net/route.c:930 in6_update_ifa(ffff800000af3000,ffff8000230fb650,0) at in6_update_ifa+0x1742 sys/netinet6/in6.c:810 in6_ioctl_change_ifaddr(8080691a,ffff8000230fb650,ffff800000af3000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd806863dc98,8080691a,ffff8000230fb650,ffff800020e22768) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd806ca44698,8080691a,ffff8000230fb650,ffff800020e22768) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e22768,ffff8000230fb768,ffff8000230fb7b0) at sys_ioctl+0x4a5 syscall(ffff8000230fb830) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230fb830) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf6e2357be70, count: -9