Warning: Permanently added '10.128.0.27' (ECDSA) to the list of known hosts. executing program panic: kernel diagnostic assertion "tname->un_flags & UNVEIL_USERSET" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_unveil.c", line 879 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 120038 56070 0 0x2 0 1 syz-executor8104 *250792 56070 0 0x2 0x4000000 0K syz-executor8104 db_enter() at db_enter+0x18 panic() at panic+0x174 __assert(ffffffff81f7d249,ffffffff81f8103d,36f,ffffffff81f8bf1e) at __assert+0x2e unveil_check_final(ffff800020b66970,ffff800020ba9a38) at unveil_check_final+0x81d namei(ffff800020ba9a38) at namei+0x88b unp_bind(ffff80000091b680,fffffd807f01d400,ffff800020b66970) at unp_bind+0x1f8 uipc_usrreq(fffffd806f738c00,2,0,fffffd807f01d400,0,ffff800020b66970) at uipc_usrreq+0x182 sys_bind(ffff800020b66970,ffff800020ba9d78,ffff800020ba9d60) at sys_bind+0x1af syscall(ffff800020ba9e10) at syscall+0x5b8 Xsyscall(6,0,7a971a710b8,0,7a971a71098,7a971a71090) at Xsyscall+0x128 end of kernel end trace frame: 0x7abf185e4f0, count: 5 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel diagnostic assertion "tname->un_flags & UNVEIL_USERSET" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_unveil.c", line 879 ddb{0}> trace db_enter() at db_enter+0x18 panic() at panic+0x174 __assert(ffffffff81f7d249,ffffffff81f8103d,36f,ffffffff81f8bf1e) at __assert+0x2e unveil_check_final(ffff800020b66970,ffff800020ba9a38) at unveil_check_final+0x81d namei(ffff800020ba9a38) at namei+0x88b unp_bind(ffff80000091b680,fffffd807f01d400,ffff800020b66970) at unp_bind+0x1f8 uipc_usrreq(fffffd806f738c00,2,0,fffffd807f01d400,0,ffff800020b66970) at uipc_usrreq+0x182 sys_bind(ffff800020b66970,ffff800020ba9d78,ffff800020ba9d60) at sys_bind+0x1af syscall(ffff800020ba9e10) at syscall+0x5b8 Xsyscall(6,0,7a971a710b8,0,7a971a71098,7a971a71090) at Xsyscall+0x128 end of kernel end trace frame: 0x7abf185e4f0, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800020ba97d0 rbx 0xffff800020ba9880 rdx 0xffffffff81f8bd9d cy_pio_rec+0x12eb rcx 0x201 rax 0x1 r8 0xffffffff81ad1df3 kprintf+0x183 r9 0x1 r10 0xe463b63088cfde46 r11 0x64ac92e80f403d12 r12 0x3000000008 r13 0xffff800020ba97e0 r14 0x100 r15 0x1 rip 0xffffffff81a91938 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020ba97c0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor8104) pid=250792 stat=onproc flags process=2 proc=4000000 pri=53, usrpri=53, nice=20 forw=0xffffffffffffffff, list=0xffff800020b664c0,0xffffffff823c8d80 process=0xffff800020b2ad30 user=0xffff800020ba4000, vmspace=0xfffffd806e817878 estcpu=3, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 56070 120038 51267 0 7 0x2 syz-executor8104 *56070 250792 51267 0 7 0x4000002 syz-executor8104 51267 344466 57611 0 3 0x10008a pause ksh 57611 323271 30374 0 3 0x92 select sshd 93913 428611 1 0 3 0x100083 ttyin getty 30374 311118 1 0 3 0x80 select sshd 70271 48336 77683 74 3 0x100092 bpf pflogd 77683 182465 1 0 3 0x80 netio pflogd 2581 123376 71329 73 3 0x100090 kqread syslogd 71329 463592 1 0 3 0x100082 netio syslogd 281 275363 1 77 3 0x100090 poll dhclient 12125 26764 1 0 3 0x80 poll dhclient 78563 180005 0 0 3 0x14200 pgzero zerothread 17221 520955 0 0 3 0x14200 aiodoned aiodoned 19057 434296 0 0 3 0x14200 syncer update 15811 159525 0 0 3 0x14200 cleaner cleaner 9202 289841 0 0 3 0x14200 reaper reaper 4356 180971 0 0 3 0x14200 pgdaemon pagedaemon 20314 442704 0 0 3 0x14200 bored crynlk 79241 441682 0 0 3 0x14200 bored crypto 680 1727 0 0 3 0x40014200 acpi0 acpi0 99808 169837 0 0 3 0x40014200 idle1 75937 243640 0 0 3 0x14200 bored softnet 4632 434637 0 0 3 0x14200 bored systqmp 38679 90285 0 0 3 0x14200 bored systq 44676 84110 0 0 3 0x40014200 bored softclock 60247 237381 0 0 3 0x40014200 idle0 38209 175844 0 0 3 0x14200 bored smr 1 511964 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 56070 (syz-executor8104) thread 0xffff800020b66970 (250792) exclusive rrwlock inode r = 0 (0xfffffd806ed15f88) 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 unp_bind+0x1f8 #8 uipc_usrreq+0x182 #9 sys_bind+0x1af #10 syscall+0x5b8 #11 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82360b08) locked @ /syzkaller/managers/multicore/kernel/sys/kern/uipc_socket2.c:288 #0 witness_lock+0x594 #1 syscall+0x48b #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9450 6382K 6383K 78643K 10537 0 0 pcb 27 9K 9K 78643K 59 0 0 rtable 61 2K 2K 78643K 125 0 0 ifaddr 25 7K 7K 78643K 26 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1467 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1167 73K 73K 78643K 1172 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 1 0K 0K 78643K 1 0 0 proc 55 62K 70K 78643K 283 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 11 0K 0K 78643K 11 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 18 79K 79K 78643K 18 0 0 exec 0 0K 1K 78643K 179 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 55 3K 3K 78643K 766 0 0 UVM aobj 2 2K 2K 78643K 2 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 4 0K 0K 78643K 4 0 0 temp 39 2360K 2424K 78643K 1999 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 2 0 0 1 0 1 1 0 8 0 inpcbpl 280 29 0 23 1 0 1 1 0 8 0 plimitpl 152 14 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 syncache 264 5 0 5 1 0 1 1 0 8 1 tcpcb 544 8 0 5 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 8 0 0 1 0 1 1 0 8 0 pfstkey 112 8 0 0 1 0 1 1 0 8 0 pfstate 328 8 0 0 1 0 1 1 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 96 0 0 6 0 6 6 0 8 0 art_table 32 97 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1390 0 17 45 0 45 45 0 8 0 ffsino 272 1390 0 17 92 0 92 92 0 8 0 nchpl 144 1564 0 32 57 0 57 57 0 8 0 uvmvnodes 72 1400 0 0 26 0 26 26 0 8 0 vnodes 200 1400 0 0 74 0 74 74 0 8 0 namei 1024 3561 0 3560 2 1 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 2325 0 2325 2 1 1 2 0 8 1 sigapl 432 205 0 193 2 0 2 2 0 8 0 knotepl 112 5 0 0 1 0 1 1 0 8 0 kqueuepl 104 1 0 0 1 0 1 1 0 8 0 pipepl 112 134 0 127 2 1 1 1 0 8 0 fdescpl 488 206 0 193 3 1 2 3 0 8 0 filepl 152 962 0 913 2 0 2 2 0 8 0 lockfpl 104 6 0 6 1 1 0 1 0 8 0 lockfspl 32 3 0 3 1 1 0 1 0 8 0 sessionpl 112 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 52 0 43 1 0 1 1 0 8 0 zombiepl 144 193 0 193 2 1 1 1 0 8 1 processpl 840 221 0 193 4 0 4 4 0 8 0 procpl 600 222 0 193 3 0 3 3 0 8 0 sockpl 384 75 0 55 2 0 2 2 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 56 0 0 7 0 7 7 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 75 0 0 5 0 5 5 0 8 0 bufpl 256 2165 0 275 119 0 119 119 0 8 0 anonpl 16 19149 0 17915 8 2 6 7 0 125 1 amapchunkpl 152 556 0 517 2 0 2 2 0 158 0 amappl16 192 30 0 28 1 0 1 1 0 8 0 amappl15 184 53 0 49 1 0 1 1 0 8 0 amappl14 176 16 0 15 2 1 1 1 0 8 0 amappl13 168 22 0 19 1 0 1 1 0 8 0 amappl12 160 10 0 10 1 1 0 1 0 8 0 amappl11 152 26 0 11 1 0 1 1 0 8 0 amappl10 144 57 0 55 1 0 1 1 0 8 0 amappl9 136 425 0 424 1 0 1 1 0 8 0 amappl8 128 100 0 95 1 0 1 1 0 8 0 amappl7 120 18 0 17 1 0 1 1 0 8 0 amappl6 112 44 0 40 1 0 1 1 0 8 0 amappl5 104 123 0 109 1 0 1 1 0 8 0 amappl4 96 431 0 410 1 0 1 1 0 8 0 amappl3 88 104 0 98 1 0 1 1 0 8 0 amappl2 80 669 0 622 1 0 1 1 0 8 0 amappl1 72 13625 0 13196 16 6 10 16 0 8 0 amappl 72 428 0 406 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 206 0 193 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 206 0 193 1 0 1 1 0 8 0 vmmpekpl 168 5593 0 5575 1 0 1 1 0 8 0 vmmpepl 168 27289 0 26484 50 13 37 50 0 357 2 vmsppl 360 205 0 193 2 0 2 2 0 8 0 pdppl 4096 420 0 386 6 1 5 6 0 8 0 pvpl 32 81852 0 78748 33 4 29 29 0 265 1 pmappl 224 205 0 193 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 247 0 5 7 0 7 7 0 8 0 ddb{0}>