| TITLE: uvm_fault: rtable_satoplen |
| |
| kernel: page fault trap, code=0 |
| Stopped at rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d |
| ddb{1}> |
| ddb{1}> set $lines = 0 |
| ddb{1}> set $maxwidth = 0 |
| ddb{1}> show panic |
| kernel page fault |
| uvm_fault(0xffffffff82239270, 0xffff800003fd2002, 0, 1) -> e |
| rtable_satoplen(21,ffff800003fd1f59) at rtable_satoplen+0x150 |
| end trace frame: 0xffff800020c2ac10, count: 0 |
| ddb{1}> trace |
| rtable_satoplen(21,ffff800003fd1f59) at rtable_satoplen+0x150 |
| rtable_lookup(0,ffff800003fd1f09,ffff800003fd1f59,ffff800003fd1f11,21) at rtable_lookup+0xfd |
| rtm_output(ffff800003fd1f00,ffff800020c2ad00,ffff800020c2ad08,21,0) at rtm_output+0x1a7 |
| route_output(fffffd806420e400,fffffd806f726780,0,0) at route_output+0x79b |
| route_usrreq(fffffd806f726780,9,fffffd806420e400,0,0,ffff800020b39080) at route_usrreq+0x35d |
| sosend(fffffd806f726780,0,ffff800020c2afc8,0,0,0) at sosend+0x6eb |
| sendit(ffff800020b39080,3,ffff800020c2b088,0,ffff800020c2b150) at sendit+0x590 |
| sys_sendto(ffff800020b39080,ffff800020c2b168,ffff800020c2b150) at sys_sendto+0x92 |
| syscall(ffff800020c2b200) at syscall+0x5b8 |
| Xsyscall(6,0,ffffffffffffffd8,0,6,7ef18fab010) at Xsyscall+0x128 |
| end of kernel |
| end trace frame: 0x7f149f70c90, count: -10 |
| ddb{1}> show registers |
| rdi 0 |
| rsi 0xaa |
| rbp 0xffff800020c2ab70 |
| rbx 0xffffffffffffff5a |
| rdx 0xffff800003fd1f5d |
| rcx 0xffff800003fd2003 |
| rax 0xffff800003fd2003 |
| r8 0x21 |
| r9 0x1 |
| r10 0x4 |
| r11 0x89c88da4ffc7763b |
| r12 0 |
| r13 0xffff800003fd2003 |
| r14 0xffffffff8221f1f0 mplsdomain |
| r15 0x4 |
| rip 0xffffffff817f4cd0 rtable_satoplen+0x150 |
| cs 0x8 |
| rflags 0x10287 __ALIGN_SIZE+0xf287 |
| rsp 0xffff800020c2ab20 |
| ss 0x10 |
| rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d |
| ddb{1}> show proc |
| PROC (syz-executor.1) pid=266177 stat=onproc |
| flags process=0 proc=4000000<THREAD> |
| pri=77, usrpri=77, nice=20 |
| forw=0xffffffffffffffff, list=0xffff800020b392d8,0xffffffff8233d1e8 |
| process=0xffff800020b8d710 user=0xffff800020c26000, vmspace=0xfffffd807effd000 |
| estcpu=36, cpticks=1, pctcpu=0.0 |
| user=0, sys=1, intr=0 |
| ddb{1}> ps |
| PID TID PPID UID S FLAGS WAIT COMMAND |
| 61214 389975 52126 0 2 0 syz-executor.1 |
| *61214 266177 52126 0 7 0x4000000 syz-executor.1 |
| 71951 58372 1 0 3 0x100083 ttyin getty |
| 52126 144204 17086 0 3 0x82 nanosleep syz-executor.1 |
| 71619 125603 0 0 3 0x14200 bored sosplice |
| 90111 476648 17086 0 3 0x2 biowait syz-executor.0 |
| 17086 112857 16985 0 3 0x82 thrsleep syz-fuzzer |
| 17086 157380 16985 0 3 0x4000082 nanosleep syz-fuzzer |
| 17086 360089 16985 0 3 0x4000082 thrsleep syz-fuzzer |
| 17086 426933 16985 0 3 0x4000082 thrsleep syz-fuzzer |
| 17086 513573 16985 0 3 0x4000082 thrsleep syz-fuzzer |
| 17086 146340 16985 0 3 0x4000082 thrsleep syz-fuzzer |
| 17086 466100 16985 0 3 0x4000082 thrsleep syz-fuzzer |
| 17086 129204 16985 0 3 0x4000082 thrsleep syz-fuzzer |
| 17086 333808 16985 0 3 0x4000082 thrsleep syz-fuzzer |
| 17086 297212 16985 0 3 0x4000082 kqread syz-fuzzer |
| 16985 429407 17352 0 3 0x10008a pause ksh |
| 17352 221833 41938 0 3 0x92 select sshd |
| 41938 235908 1 0 3 0x80 select sshd |
| 36925 483423 10788 74 3 0x100092 bpf pflogd |
| 10788 404632 1 0 3 0x80 netio pflogd |
| 49597 463025 52510 73 7 0x100090 syslogd |
| 52510 459257 1 0 3 0x100082 netio syslogd |
| 32010 303126 1 77 3 0x100090 poll dhclient |
| 72495 432951 1 0 3 0x80 poll dhclient |
| 15073 403496 0 0 2 0x14200 zerothread |
| 26131 460039 0 0 3 0x14200 aiodoned aiodoned |
| 51015 355403 0 0 3 0x14200 syncer update |
| 7832 505109 0 0 3 0x14200 cleaner cleaner |
| 87452 506642 0 0 3 0x14200 reaper reaper |
| 39669 331684 0 0 3 0x14200 pgdaemon pagedaemon |
| 59109 95094 0 0 3 0x14200 bored crynlk |
| 36851 104720 0 0 3 0x14200 bored crypto |
| 77240 42057 0 0 3 0x40014200 acpi0 acpi0 |
| 70345 413261 0 0 3 0x40014200 idle1 |
| 29366 303049 0 0 3 0x14200 bored softnet |
| 41695 468435 0 0 3 0x14200 bored systqmp |
| 32858 281662 0 0 3 0x14200 bored systq |
| 87799 421556 0 0 3 0x40014200 bored softclock |
| 97272 32541 0 0 3 0x40014200 idle0 |
| 40487 262223 0 0 3 0x14200 bored smr |
| 1 48762 0 0 3 0x82 wait init |
| 0 0 -1 0 3 0x10200 scheduler swapper |
| ddb{1}> show all locks |
| Process 61214 (syz-executor.1) thread 0xffff800020b39080 (266177) |
| exclusive kernel_lock &kernel_lock r = 1 (0xffffffff823542d8) locked @ /syzkaller/managers/multicore/kernel/sys/arch/amd64/amd64/trap.c:161 |
| #0 witness_lock+0x594 |
| #1 solock+0x7e |
| #2 sosend+0x586 |
| #3 sendit+0x590 |
| #4 sys_sendto+0x92 |
| #5 syscall+0x5b8 |
| #6 Xsyscall+0x128 |
| Process 90111 (syz-executor.0) thread 0xffff800020b15520 (476648) |
| exclusive rrwlock inode r = 0 (0xfffffd8068b192c0) locked @ /syzkaller/managers/multicore/kernel/sys/ufs/ufs/ufs_vnops.c:1547 |
| #0 witness_lock+0x594 |
| #1 _rw_enter+0x45d |
| #2 _rrw_enter+0x60 |
| #3 VOP_LOCK+0x57 |
| #4 vn_lock+0x6e |
| #5 vget+0x1c3 |
| #6 ufs_ihashget+0x151 |
| #7 ffs_vget+0x84 |
| #8 ufs_lookup+0x15d3 |
| #9 VOP_LOOKUP+0x67 |
| #10 vfs_lookup+0x556 |
| #11 namei+0x4b2 |
| #12 dounlinkat+0xa5 |
| #13 syscall+0x5b8 |
| #14 Xsyscall+0x128 |
| exclusive rrwlock inode r = 0 (0xfffffd8068b19b40) locked @ /syzkaller/managers/multicore/kernel/sys/ufs/ufs/ufs_vnops.c:1547 |
| #0 witness_lock+0x594 |
| #1 _rw_enter+0x45d |
| #2 _rrw_enter+0x60 |
| #3 VOP_LOCK+0x57 |
| #4 vn_lock+0x6e |
| #5 vfs_lookup+0xf5 |
| #6 namei+0x4b2 |
| #7 dounlinkat+0xa5 |
| #8 syscall+0x5b8 |
| #9 Xsyscall+0x128 |
| ddb{1}> show malloc |
| Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim |
| devbuf 9561 6446K 6464K 78643K 11640 0 0 |
| pcb 26 9K 11K 78643K 1519 0 0 |
| rtable 104 4K 4K 78643K 921 0 0 |
| ifaddr 71 16K 16K 78643K 460 0 0 |
| counters 39 33K 33K 78643K 39 0 0 |
| ioctlops 0 0K 4K 78643K 1499 0 0 |
| iov 0 0K 24K 78643K 467 0 0 |
| mount 1 1K 1K 78643K 1 0 0 |
| vnodes 1196 75K 76K 78643K 2832 0 0 |
| UFS quota 1 32K 32K 78643K 1 0 0 |
| UFS mount 5 36K 36K 78643K 5 0 0 |
| shm 2 1K 5K 78643K 53 0 0 |
| VM map 2 1K 1K 78643K 2 0 0 |
| sem 12 0K 1K 78643K 530 0 0 |
| dirhash 12 2K 2K 78643K 12 0 0 |
| ACPI 1808 196K 290K 78643K 12628 0 0 |
| file desc 5 13K 25K 78643K 2960 0 0 |
| sigio 0 0K 0K 78643K 29 0 0 |
| proc 54 51K 83K 78643K 838 0 0 |
| subproc 64 65538K 67586K 78643K 112 0 0 |
| NFS srvsock 1 0K 0K 78643K 1 0 0 |
| NFS daemon 1 16K 16K 78643K 1 0 0 |
| ip_moptions 0 0K 0K 78643K 405 0 0 |
| in_multi 33 2K 2K 78643K 141 0 0 |
| ether_multi 1 0K 0K 78643K 14 0 0 |
| mrt 0 0K 0K 78643K 17 0 0 |
| ISOFS mount 1 32K 32K 78643K 1 0 0 |
| MSDOSFS mount 1 16K 16K 78643K 1 0 0 |
| ttys 84 371K 371K 78643K 84 0 0 |
| exec 0 0K 1K 78643K 467 0 0 |
| pagedep 1 8K 8K 78643K 1 0 0 |
| inodedep 1 32K 32K 78643K 1 0 0 |
| newblk 1 0K 0K 78643K 1 0 0 |
| VM swap 7 26K 26K 78643K 7 0 0 |
| UVM amap 96 21K 30K 78643K 10841 0 0 |
| UVM aobj 130 4K 4K 78643K 146 0 0 |
| memdesc 1 4K 4K 78643K 1 0 0 |
| crypto data 1 1K 1K 78643K 1 0 0 |
| ip6_options 0 0K 0K 78643K 129 0 0 |
| NDP 16 0K 0K 78643K 123 0 0 |
| temp 204 2380K 2453K 78643K 11218 0 0 |
| kqueue 0 0K 0K 78643K 43 0 0 |
| SYN cache 2 16K 16K 78643K 2 0 0 |
| ddb{1}> show all pools |
| Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle |
| arp 64 5 0 1 1 0 1 1 0 8 0 |
| inpcbpl 280 1686 0 1679 1 0 1 1 0 8 0 |
| plimitpl 152 118 0 110 1 0 1 1 0 8 0 |
| plcache 128 20 0 0 1 0 1 1 0 8 0 |
| rtentry 112 62 0 22 2 0 2 2 0 8 0 |
| syncache 264 4 0 4 1 1 0 1 0 8 0 |
| tcpqe 32 8 0 8 1 1 0 1 0 8 0 |
| tcpcb 544 587 0 583 1 0 1 1 0 8 0 |
| rttmr 72 6 0 6 5 5 0 1 0 8 0 |
| nd6 48 6 0 2 1 0 1 1 0 8 0 |
| ppxss 1128 89 0 89 14 13 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 |
| pfstitem 24 50 0 43 1 0 1 1 0 8 0 |
| pfstkey 112 50 0 43 1 0 1 1 0 8 0 |
| pfstate 328 50 0 43 2 0 2 2 0 8 0 |
| pfrule 1360 21 0 16 2 1 1 2 0 8 0 |
| art_heap8 4096 1 0 0 1 0 1 1 0 8 0 |
| art_heap4 256 228 0 41 12 0 12 12 0 8 0 |
| art_table 32 229 0 41 2 0 2 2 0 8 0 |
| art_node 16 55 0 21 1 0 1 1 0 8 0 |
| sysvmsgpl 40 21 0 3 1 0 1 1 0 8 0 |
| semupl 112 2 0 2 1 1 0 1 0 8 0 |
| semapl 112 528 0 518 1 0 1 1 0 8 0 |
| shmpl 112 144 0 16 5 1 4 4 0 8 0 |
| dirhash 1024 17 0 0 3 0 3 3 0 8 0 |
| dino1pl 128 6952 0 5502 47 0 47 47 0 8 0 |
| ffsino 272 6952 0 5502 97 0 97 97 0 8 0 |
| nchpl 144 11536 0 9921 61 0 61 61 0 8 0 |
| uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 |
| vnodes 200 5926 0 0 312 0 312 312 0 8 0 |
| namei 1024 36068 0 36068 3 2 1 1 0 8 1 |
| percpumem 16 30 0 0 1 0 1 1 0 8 0 |
| scsiplug 64 4 0 4 4 4 0 1 0 8 0 |
| scxspl 192 37314 0 37313 21 20 1 6 0 8 0 |
| sigapl 432 3156 0 3141 3 1 2 3 0 8 0 |
| futexpl 56 37115 0 37115 2 1 1 1 0 8 1 |
| knotepl 112 792 0 765 9 8 1 2 0 8 0 |
| kqueuepl 104 877 0 875 1 0 1 1 0 8 0 |
| pipepl 112 2302 0 2283 7 6 1 2 0 8 0 |
| fdescpl 488 3157 0 3141 4 1 3 3 0 8 0 |
| filepl 152 20121 0 20021 11 6 5 6 0 8 0 |
| lockfpl 104 1079 0 1079 6 5 1 1 0 8 1 |
| lockfspl 32 1412 0 1412 6 5 1 1 0 8 1 |
| sessionpl 112 22 0 11 1 0 1 1 0 8 0 |
| pgrppl 48 83 0 72 1 0 1 1 0 8 0 |
| ucredpl 96 5169 0 5160 1 0 1 1 0 8 0 |
| zombiepl 144 3141 0 3141 2 1 1 1 0 8 1 |
| processpl 840 3173 0 3141 4 0 4 4 0 8 0 |
| procpl 600 10009 0 9967 5 1 4 5 0 8 0 |
| srpgc 64 12 0 12 6 6 0 1 0 8 0 |
| sosppl 128 48 0 48 15 14 1 1 0 8 1 |
| sockpl 384 2975 0 2955 6 3 3 4 0 8 1 |
| mcl64k 65536 229 0 0 29 16 13 29 0 8 1 |
| mcl16k 16384 6 0 0 1 0 1 1 0 8 0 |
| mcl12k 12288 17 0 0 2 0 2 2 0 8 0 |
| mcl9k 9216 13 0 0 1 0 1 1 0 8 0 |
| mcl8k 8192 8 0 0 1 0 1 1 0 8 0 |
| mcl4k 4096 17 0 0 3 0 3 3 0 8 0 |
| mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 |
| mcl2k 2048 126 0 0 15 0 15 15 0 8 0 |
| mtagpl 80 2 0 0 1 0 1 1 0 8 0 |
| mbufpl 256 392 0 0 17 0 17 17 0 8 0 |
| bufpl 256 13101 0 6112 438 1 437 438 0 8 0 |
| anonpl 16 331744 0 322738 151 98 53 54 0 125 11 |
| amapchunkpl 152 19750 0 19663 30 24 6 11 0 158 0 |
| amappl16 192 16435 0 15955 149 112 37 37 0 8 12 |
| amappl15 184 1174 0 1171 1 0 1 1 0 8 0 |
| amappl14 176 340 0 336 1 0 1 1 0 8 0 |
| amappl13 168 32 0 29 1 0 1 1 0 8 0 |
| amappl12 160 6 0 6 1 1 0 1 0 8 0 |
| amappl11 152 1386 0 1371 1 0 1 1 0 8 0 |
| amappl10 144 70 0 65 1 0 1 1 0 8 0 |
| amappl9 136 372 0 369 1 0 1 1 0 8 0 |
| amappl8 128 176 0 151 1 0 1 1 0 8 0 |
| amappl7 120 1474 0 1468 1 0 1 1 0 8 0 |
| amappl6 112 376 0 366 1 0 1 1 0 8 0 |
| amappl5 104 1327 0 1310 1 0 1 1 0 8 0 |
| amappl4 96 350 0 323 2 1 1 2 0 8 0 |
| amappl3 88 242 0 237 1 0 1 1 0 8 0 |
| amappl2 80 30193 0 30134 2 0 2 2 0 8 0 |
| amappl1 72 79202 0 78762 25 16 9 19 0 8 0 |
| amappl 72 10262 0 10227 1 0 1 1 0 75 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 |
| dma64 64 259 0 259 1 1 0 1 0 8 0 |
| dma32 32 7 0 7 1 1 0 1 0 8 0 |
| dma16 16 17 0 17 1 1 0 1 0 8 0 |
| aobjpl 64 145 0 16 3 0 3 3 0 8 0 |
| uaddrrnd 24 3157 0 3141 1 0 1 1 0 8 0 |
| uaddrbest 32 2 0 0 1 0 1 1 0 8 0 |
| uaddr 24 3157 0 3141 1 0 1 1 0 8 0 |
| vmmpekpl 168 30299 0 30275 2 0 2 2 0 8 0 |
| vmmpepl 168 344510 0 343012 180 99 81 81 0 357 11 |
| vmsppl 360 3156 0 3141 2 0 2 2 0 8 0 |
| pdppl 4096 6322 0 6282 7 1 6 6 0 8 0 |
| pvpl 32 939267 0 927043 316 179 137 145 0 265 27 |
| pmappl 224 3156 0 3141 2 1 1 2 0 8 0 |
| extentpl 40 39 0 25 1 0 1 1 0 8 0 |
| phpool 112 632 0 23 18 0 18 18 0 8 0 |
