uvm_fault(0xffffffff8258c5b0, 0xfffffd0000000018, 0, 1) -> e kernel: page fault trap, code=0 Stopped at sbdrop+0x219: movl 0x18(%r15),%r13d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff8258c5b0, 0xfffffd0000000018, 0, 1) -> e sbdrop(ffff800022991808,ffff800022991890,bc6) at sbdrop+0x219 sys/kern/uipc_socket2.c:962 end trace frame: 0xffff8000229917b0, count: 0 ddb{1}> trace sbdrop(ffff800022991808,ffff800022991890,bc6) at sbdrop+0x219 sys/kern/uipc_socket2.c:962 sbflush(ffff800022991808,ffff800022991890) at sbflush+0x93 sys/kern/uipc_socket2.c:931 sbrelease(ffff800022991808,ffff800022991890) at sbrelease+0x2e sys/kern/uipc_socket2.c:525 sorflush(fffffd806cb63b00) at sorflush+0x14b sys/kern/uipc_socket.c:1131 sofree(fffffd806cb63b00,42) at sofree+0x147 sys/kern/uipc_socket.c:257 soclose(fffffd806cb63b00,0) at soclose+0x270 sys/kern/uipc_socket.c:338 soo_close(fffffd806cc2f140,ffff800020ac7128) at soo_close+0x40 fdrop(fffffd806cc2f140,ffff800020ac7128) at fdrop+0xc2 sys/kern/kern_descrip.c:1276 closef(fffffd806cc2f140,ffff800020ac7128) at closef+0x11c sys/kern/kern_descrip.c:1260 fdfree(ffff800020ac7128) at fdfree+0x101 sys/kern/kern_descrip.c:1192 exit1(ffff800020ac7128,0,0,1) at exit1+0x344 sys/kern/kern_exit.c:196 sys_exit(ffff800020ac7128,ffff800022991c60,ffff800022991cb0) at sys_exit+0x16 sys/kern/kern_exit.c:94 syscall(ffff800022991d30) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022991d30) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe1a30, count: -14 ddb{1}> show registers rdi 0 rsi 0x97e rbp 0xffff800022991760 rbx 0xfffffd807d6f1c00 rdx 0x2bbaa acpi_pdirpa+0x17a12 rcx 0 rax 0 r8 0xffffffff821a8878 sbdrop+0x248 r9 0x3 r10 0x82bffa57d0791e05 r11 0xb973860becfbbac5 r12 0x97e r13 0x2200 __ALIGN_SIZE+0x1200 r14 0xffff800022991890 r15 0xfffffd0000000000 rip 0xffffffff821a8849 sbdrop+0x219 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800022991700 ss 0x10 sbdrop+0x219: movl 0x18(%r15),%r13d ddb{1}> show proc PROC (syz-executor.0) pid=248889 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=62, nice=20 forw=0xffffffffffffffff, list=0xffff800020ac6288,0xffffffff8267ee60 process=0xffff800020a932e0 user=0xffff80002298c000, vmspace=0xfffffd807efff5c0 estcpu=26, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 26824 127430 13707 0 3 0x2 biowait syz-executor.1 23397 172251 0 0 3 0x14200 bored sosplice 23542 57611 13707 0 3 0x82 nanosleep syz-executor.0 13707 283195 30846 0 3 0x82 thrsleep syz-fuzzer 13707 231122 30846 0 3 0x4000082 nanosleep syz-fuzzer 13707 379946 30846 0 3 0x4000082 thrsleep syz-fuzzer 13707 98919 30846 0 3 0x4000082 thrsleep syz-fuzzer 13707 44100 30846 0 3 0x4000082 nanosleep syz-fuzzer 13707 421046 30846 0 3 0x4000082 kqread syz-fuzzer 13707 315285 30846 0 3 0x4000082 thrsleep syz-fuzzer 13707 490472 30846 0 3 0x4000082 thrsleep syz-fuzzer 13707 4870 30846 0 3 0x4000082 thrsleep syz-fuzzer 13707 329008 30846 0 3 0x4000082 thrsleep syz-fuzzer 13707 319370 30846 0 3 0x4000082 thrsleep syz-fuzzer 30846 125115 95329 0 3 0x10008a pause ksh 95329 153850 22872 0 3 0x92 select sshd 1635 155284 1 0 3 0x100083 ttyin getty 22872 11278 1 0 3 0x80 select sshd 20499 342671 23246 74 3 0x100092 bpf pflogd 23246 411453 1 0 3 0x80 netio pflogd 4351 274644 57637 73 3 0x100090 kqread syslogd 57637 365472 1 0 3 0x100082 netio syslogd 74307 270953 1 77 3 0x100090 poll dhclient 13101 424289 1 0 3 0x80 poll dhclient 80854 516278 0 0 3 0x14200 bored smr 46130 211718 0 0 3 0x14200 pgzero zerothread 24509 329969 0 0 3 0x14200 aiodoned aiodoned 69970 149981 0 0 3 0x14200 syncer update 8538 181593 0 0 3 0x14200 cleaner cleaner 50469 477967 0 0 7 0x14200 reaper 77802 474214 0 0 3 0x14200 pgdaemon pagedaemon 54108 263259 0 0 3 0x14200 bored crynlk 99164 344173 0 0 3 0x14200 bored crypto 31448 441012 0 0 3 0x40014200 acpi0 acpi0 66202 361830 0 0 3 0x40014200 idle1 62207 211989 0 0 3 0x14200 bored softnet 9492 401947 0 0 3 0x14200 bored systqmp 45173 40825 0 0 3 0x14200 bored systq 92574 178033 0 0 3 0x40014200 bored softclock 19133 449726 0 0 3 0x40014200 idle0 1 60834 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 26824 (syz-executor.1) thread 0xffff800020ac6288 (127430) exclusive rrwlock inode r = 0 (0xfffffd806b45b918) #0 witness_lock+0x52e 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+0x1cf sys/ufs/ffs/ffs_alloc.c:392 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #7 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:449 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:3058 #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 (0xfffffd806f749c50) #0 witness_lock+0x52e 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:602 #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:3043 #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 9542 6549K 7499K 78643K 11835 0 pcb 13 8K 8K 78643K 105 0 rtable 105 3K 3K 78643K 319 0 ifaddr 81 15K 15K 78643K 105 0 counters 43 33K 34K 78643K 49 0 ioctlops 0 0K 4K 78643K 1494 0 iov 0 0K 16K 78643K 44 0 mount 1 1K 1K 78643K 1 0 vnodes 1228 77K 77K 78643K 1554 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 4 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 72 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 5 13K 25K 78643K 312 0 sigio 0 0K 0K 78643K 2 0 proc 61 63K 95K 78643K 520 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 31 0 in_multi 60 3K 3K 78643K 108 0 ether_multi 1 0K 0K 78643K 15 0 mrt 0 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 85 387K 387K 78643K 85 0 exec 0 0K 1K 78643K 252 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 122 55K 64K 78643K 1972 0 UVM aobj 28 2K 2K 78643K 28 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 83 0 NDP 13 0K 0K 78643K 22 0 temp 135 3030K 3131K 78643K 4414 0 kqueue 3 4K 12K 78643K 17 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 15 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 29 0 26 1 0 1 1 0 8 0 rtentry 112 72 0 28 2 0 2 2 0 8 0 unpcb 120 215 0 205 1 0 1 1 0 8 0 syncache 264 8 0 8 3 2 1 1 0 8 1 tcpcb 544 207 0 199 3 2 1 3 0 8 0 inpcb 280 728 0 713 3 1 2 3 0 8 0 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 10 0 4 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 51 0 3 1 0 1 1 0 8 0 pfstkey 112 51 0 3 2 0 2 2 0 8 0 pfstate 328 51 0 3 4 0 4 4 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 256 257 0 59 14 1 13 13 0 8 0 art_table 32 258 0 59 2 0 2 2 0 8 0 art_node 16 71 0 32 1 0 1 1 0 8 0 sysvmsgpl 40 29 0 12 1 0 1 1 0 8 0 semapl 112 66 0 56 1 0 1 1 0 8 0 shmpl 112 26 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1823 0 418 46 0 46 46 0 8 0 ffsino 272 1823 0 418 94 0 94 94 0 8 0 nchpl 144 2447 0 842 61 0 61 61 0 8 0 uvmvnodes 72 2143 0 0 39 0 39 39 0 8 0 vnodes 208 2143 0 0 113 0 113 113 0 8 0 namei 1024 7077 0 7076 1 0 1 1 0 8 0 percpumem 16 35 0 3 1 0 1 1 0 8 0 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 560 5 0 2 1 0 1 1 0 8 0 scxspl 192 7535 0 7534 8 7 1 7 0 8 0 plimitpl 152 47 0 39 1 0 1 1 0 8 0 sigapl 424 525 0 493 4 0 4 4 0 8 0 futexpl 56 5734 0 5734 1 0 1 1 0 8 1 knotepl 112 84 0 65 1 0 1 1 0 8 0 kqueuepl 144 83 0 81 2 1 1 2 0 8 0 pipelkpl 48 133 0 123 1 0 1 1 0 8 0 pipepl 120 266 0 247 2 0 2 2 0 8 1 fdescpl 496 509 0 493 3 0 3 3 0 8 0 filepl 152 3539 0 3427 7 1 6 7 0 8 1 lockfpl 104 307 0 306 1 0 1 1 0 8 0 lockfspl 48 141 0 140 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 28 0 17 1 0 1 1 0 8 0 ucredpl 96 420 0 411 1 0 1 1 0 8 0 zombiepl 144 494 0 493 1 0 1 1 0 8 0 processpl 960 525 0 493 5 0 5 5 0 8 0 procpl 624 1151 0 1108 4 0 4 4 0 8 0 sosppl 128 7 0 7 2 1 1 1 0 8 1 sockpl 400 981 0 952 6 1 5 6 0 8 1 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 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 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 163 0 0 20 0 20 20 0 8 0 mtagpl 80 131 0 0 3 0 3 3 0 8 0 mbufpl 256 669 0 0 41 0 41 41 0 8 0 bufpl 280 4712 0 174 325 0 325 325 0 8 0 anonpl 16 64576 0 47565 78 4 74 74 0 124 5 amapchunkpl 152 3041 0 2900 20 10 10 20 0 158 3 amappl16 192 2343 0 1413 50 2 48 48 0 8 1 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 10 0 9 3 2 1 1 0 8 0 amappl13 168 31 0 30 1 0 1 1 0 8 0 amappl12 160 59 0 57 2 1 1 1 0 8 0 amappl11 152 177 0 158 1 0 1 1 0 8 0 amappl10 144 18 0 12 1 0 1 1 0 8 0 amappl9 136 511 0 505 1 0 1 1 0 8 0 amappl8 128 471 0 441 2 0 2 2 0 8 0 amappl7 120 126 0 113 1 0 1 1 0 8 0 amappl6 112 121 0 115 1 0 1 1 0 8 0 amappl5 104 457 0 441 1 0 1 1 0 8 0 amappl4 96 517 0 485 2 1 1 2 0 8 0 amappl3 88 116 0 109 1 0 1 1 0 8 0 amappl2 80 3054 0 2983 3 1 2 3 0 8 0 amappl1 72 21321 0 20870 26 16 10 20 0 8 0 amappl 80 1420 0 1373 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 27 0 0 1 0 1 1 0 8 0 uaddrrnd 24 514 0 495 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 514 0 495 1 0 1 1 0 8 0 vmmpekpl 168 7876 0 7842 2 0 2 2 0 8 0 vmmpepl 168 69777 0 67677 133 16 117 123 0 357 21 vmsppl 368 513 0 495 2 0 2 2 0 8 0 pdppl 4096 1036 0 993 6 0 6 6 0 8 0 pvpl 32 203045 0 182791 184 5 179 179 0 265 15 pmappl 232 513 0 495 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 204 0 7 6 0 6 6 0 8 0