Warning: Permanently added '10.128.0.59' (ECDSA) to the list of known hosts. 2021/02/04 05:38:24 fuzzer started 2021/02/04 05:38:26 dialing manager at 10.128.15.235:43483 2021/02/04 05:38:26 syscalls: 383 2021/02/04 05:38:26 code coverage: enabled 2021/02/04 05:38:26 comparison tracing: enabled 2021/02/04 05:38:26 extra coverage: enabled 2021/02/04 05:38:26 setuid sandbox: enabled 2021/02/04 05:38:26 namespace sandbox: support is not implemented in syzkaller 2021/02/04 05:38:26 Android sandbox: support is not implemented in syzkaller 2021/02/04 05:38:26 fault injection: support is not implemented in syzkaller 2021/02/04 05:38:26 leak checking: support is not implemented in syzkaller 2021/02/04 05:38:26 net packet injection: enabled 2021/02/04 05:38:26 net device setup: support is not implemented in syzkaller 2021/02/04 05:38:26 concurrency sanitizer: support is not implemented in syzkaller 2021/02/04 05:38:26 devlink PCI setup: support is not implemented in syzkaller 2021/02/04 05:38:26 USB emulation: support is not implemented in syzkaller 2021/02/04 05:38:26 hci packet injection: support is not implemented in syzkaller 2021/02/04 05:38:26 wifi device emulation: support is not implemented in syzkaller 2021/02/04 05:38:26 fetching corpus: 0, signal 0/2000 (executing program) 2021/02/04 05:38:27 fetching corpus: 50, signal 8387/12221 (executing program) 2021/02/04 05:38:27 fetching corpus: 100, signal 15159/20733 (executing program) 2021/02/04 05:38:27 fetching corpus: 150, signal 20464/27702 (executing program) 2021/02/04 05:38:27 fetching corpus: 200, signal 22976/31927 (executing program) 2021/02/04 05:38:27 fetching corpus: 250, signal 24755/35427 (executing program) 2021/02/04 05:38:27 fetching corpus: 300, signal 27899/40125 (executing program) 2021/02/04 05:38:27 fetching corpus: 350, signal 29545/43404 (executing program) 2021/02/04 05:38:27 fetching corpus: 400, signal 32060/47462 (executing program) 2021/02/04 05:38:27 fetching corpus: 450, signal 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(executing program) 2021/02/04 05:38:37 fetching corpus: 10050, signal 142850/217871 (executing program) 2021/02/04 05:38:37 fetching corpus: 10098, signal 143013/217875 (executing program) 2021/02/04 05:38:37 fetching corpus: 10098, signal 143013/217875 (executing program) 2021/02/04 05:38:37 starting 2 fuzzer processes 05:38:37 executing program 0: ioctl$TIOCSETAF(0xffffffffffffffff, 0x802c7416, &(0x7f0000000000)={0x0, 0x0, 0x5, 0xaf, "003c09b972d124edbc0000ff030000000600"}) sysctl$kern(&(0x7f0000000000)={0x1, 0x31}, 0x4, &(0x7f0000000080), 0x0, 0x0, 0x0) 05:38:37 executing program 1: r0 = open(&(0x7f0000000480)='./file0\x00', 0x80000000000206, 0x0) r1 = dup(r0) pipe2(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) writev(r2, &(0x7f0000000280)=[{&(0x7f0000000080)="1f", 0x4000}], 0x1) write(r2, &(0x7f00000000c0)="95", 0xfffffe76) dup2(r1, r2) execve(0x0, 0x0, 0x0) 05:38:38 executing program 0: ioctl$BIOCSETIF(0xffffffffffffffff, 0x8020426c, &(0x7f0000000300)={'tap', 0x0}) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x5) r0 = socket(0x2, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$TIOCFLUSH(r1, 0xc0206911, &(0x7f0000000300)) 05:38:38 executing program 0: r0 = openat$bpf(0xffffffffffffff9c, &(0x7f0000000280)='/dev/bpf\x00', 0x0, 0x0) ioctl$BIOCSETF(r0, 0x80104267, &(0x7f0000000040)={0x3, &(0x7f0000000080)=[{0x15}, {0x64}, {0x6}]}) ioctl$BIOCSETIF(r0, 0x8020426c, &(0x7f0000000380)={'tap', 0x0}) syz_emit_ethernet(0x58, &(0x7f0000000d00)) 05:38:38 executing program 0: kqueue() r0 = kqueue() r1 = fcntl$dupfd(r0, 0x2, 0xffffffffffffffff) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x3, 0x10, r1, 0x0, 0x0) r2 = openat$speaker(0xffffffffffffff9c, &(0x7f0000000100)='/dev/speaker\x00', 0x0, 0x0) kevent(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000140)=[{{0xffffffffffffff9c}, 0x0, 0x0, 0x0, 0x0, 0x10000}, {{r2}, 0xfffffffffffffffc, 0x90}, {{r0}, 0xffffffffffffffff, 0x4}], 0x0, 0x0) fcntl$lock(0xffffffffffffffff, 0x0, &(0x7f0000000000)={0x0, 0x2}) 05:38:38 executing program 1: r0 = kqueue() r1 = fcntl$dupfd(r0, 0x2, 0xffffffffffffffff) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x3, 0x10, r1, 0x0, 0x0) pread(0xffffffffffffffff, &(0x7f0000000040)="1c54aafb91a6567906f301587b782a9d7760fb8ffdcb6016aef88d0b6c62e73cc30bcab2f8d66d7ad4a7e388f49f329610ab9f7703d262e3da019b632a472cc72559b6813a6ab9cf2842fbfdb8dc4a9ca19804d6", 0x54, 0x0, 0x0) pipe2(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}, 0x4) r3 = kqueue() kevent(r3, &(0x7f0000000440)=[{{}, 0xfffffffffffffff8, 0x40, 0x80000000, 0x7fff, 0x2}, {{}, 0xfffffffffffffffd, 0x4, 0x1, 0x7fff, 0x8000}, {{}, 0xffffffffffffffff, 0x91, 0x2, 0xf66b, 0x100000001}, {{}, 0xfffffffffffffffc, 0xc, 0x1, 0x5cc, 0x100000001}, {{}, 0xfffffffffffffffb, 0x4, 0xf0000000, 0x89, 0x5}, {{r2}, 0xfffffffffffffffe, 0x1, 0x5a6bdbf7d6f3faee, 0x7, 0xfff}], 0x40000000, &(0x7f00000002c0)=[{{}, 0xfffffffffffffffe, 0xa, 0xf0000000}, {{}, 0x0, 0x10, 0x0, 0x34, 0x5}, {{}, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffd}, {{}, 0x3, 0xe, 0xfffff, 0x1000, 0x3}], 0xf93, &(0x7f00000001c0)={0x101}) sendmsg$unix(0xffffffffffffffff, &(0x7f0000000440)={0x0, 0x0, &(0x7f00000002c0)=[{&(0x7f0000000080)="d4c8471ad1f7563cb9", 0x9}], 0x1}, 0x1) fcntl$lock(0xffffffffffffffff, 0x0, &(0x7f0000000000)={0x0, 0x2}) 05:38:38 executing program 0: r0 = openat$bpf(0xffffffffffffff9c, &(0x7f0000000100)='/dev/bpf\x00', 0x0, 0x0) ioctl$BIOCSETIF(r0, 0x8020426c, &(0x7f0000000200)={'tap', 0x0}) ioctl$BIOCSETF(r0, 0x80104267, &(0x7f0000000040)={0x3, &(0x7f00000000c0)=[{0x4c}, {0x34, 0x0, 0x0, 0x8000}, {0x4006}]}) syz_emit_ethernet(0xe, &(0x7f0000000240)) 05:38:38 executing program 0: ioctl$BIOCSETWF(0xffffffffffffffff, 0x80104277, &(0x7f0000000180)={0x3, &(0x7f0000000000)=[{}, {}, {0x6}]}) sysctl$net_inet_gre(&(0x7f0000000000)={0x4, 0x2, 0x6}, 0x10, 0x0, 0x0, 0x0, 0x0) sysctl$kern(&(0x7f0000000000)={0x1, 0x42}, 0x6, 0x0, 0x0, 0x0, 0x0) 05:38:38 executing program 0: ioctl$BIOCSETWF(0xffffffffffffffff, 0x80104277, &(0x7f0000000180)={0x3, &(0x7f0000000000)=[{}, {}, {0x6}]}) sysctl$net_inet_gre(&(0x7f0000000000)={0x4, 0x2, 0x6}, 0x10, 0x0, 0x0, 0x0, 0x0) sysctl$kern(&(0x7f0000000000)={0x1, 0x42}, 0x6, 0x0, 0x0, 0x0, 0x0) 05:38:38 executing program 1: r0 = kqueue() r1 = fcntl$dupfd(r0, 0x2, 0xffffffffffffffff) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x3, 0x10, r1, 0x0, 0x0) pread(0xffffffffffffffff, &(0x7f0000000040)="1c54aafb91a6567906f301587b782a9d7760fb8ffdcb6016aef88d0b6c62e73cc30bcab2f8d66d7ad4a7e388f49f329610ab9f7703d262e3da019b632a472cc72559b6813a6ab9cf2842fbfdb8dc4a9ca19804d6", 0x54, 0x0, 0x0) pipe2(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}, 0x4) r3 = kqueue() kevent(r3, &(0x7f0000000440)=[{{}, 0xfffffffffffffff8, 0x40, 0x80000000, 0x7fff, 0x2}, {{}, 0xfffffffffffffffd, 0x4, 0x1, 0x7fff, 0x8000}, {{}, 0xffffffffffffffff, 0x91, 0x2, 0xf66b, 0x100000001}, {{}, 0xfffffffffffffffc, 0xc, 0x1, 0x5cc, 0x100000001}, {{}, 0xfffffffffffffffb, 0x4, 0xf0000000, 0x89, 0x5}, {{r2}, 0xfffffffffffffffe, 0x1, 0x5a6bdbf7d6f3faee, 0x7, 0xfff}], 0x40000000, &(0x7f00000002c0)=[{{}, 0xfffffffffffffffe, 0xa, 0xf0000000}, {{}, 0x0, 0x10, 0x0, 0x34, 0x5}, {{}, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffd}, {{}, 0x3, 0xe, 0xfffff, 0x1000, 0x3}], 0xf93, &(0x7f00000001c0)={0x101}) sendmsg$unix(0xffffffffffffffff, &(0x7f0000000440)={0x0, 0x0, &(0x7f00000002c0)=[{&(0x7f0000000080)="d4c8471ad1f7563cb9", 0x9}], 0x1}, 0x1) fcntl$lock(0xffffffffffffffff, 0x0, &(0x7f0000000000)={0x0, 0x2}) 05:38:38 executing program 0: ioctl$BIOCSETWF(0xffffffffffffffff, 0x80104277, &(0x7f0000000180)={0x3, &(0x7f0000000000)=[{}, {}, {0x6}]}) sysctl$net_inet_gre(&(0x7f0000000000)={0x4, 0x2, 0x6}, 0x10, 0x0, 0x0, 0x0, 0x0) sysctl$kern(&(0x7f0000000000)={0x1, 0x42}, 0x6, 0x0, 0x0, 0x0, 0x0) 05:38:38 executing program 1: r0 = kqueue() r1 = fcntl$dupfd(r0, 0x2, 0xffffffffffffffff) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x3, 0x10, r1, 0x0, 0x0) pread(0xffffffffffffffff, &(0x7f0000000040)="1c54aafb91a6567906f301587b782a9d7760fb8ffdcb6016aef88d0b6c62e73cc30bcab2f8d66d7ad4a7e388f49f329610ab9f7703d262e3da019b632a472cc72559b6813a6ab9cf2842fbfdb8dc4a9ca19804d6", 0x54, 0x0, 0x0) pipe2(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}, 0x4) r3 = kqueue() kevent(r3, &(0x7f0000000440)=[{{}, 0xfffffffffffffff8, 0x40, 0x80000000, 0x7fff, 0x2}, {{}, 0xfffffffffffffffd, 0x4, 0x1, 0x7fff, 0x8000}, {{}, 0xffffffffffffffff, 0x91, 0x2, 0xf66b, 0x100000001}, {{}, 0xfffffffffffffffc, 0xc, 0x1, 0x5cc, 0x100000001}, {{}, 0xfffffffffffffffb, 0x4, 0xf0000000, 0x89, 0x5}, {{r2}, 0xfffffffffffffffe, 0x1, 0x5a6bdbf7d6f3faee, 0x7, 0xfff}], 0x40000000, &(0x7f00000002c0)=[{{}, 0xfffffffffffffffe, 0xa, 0xf0000000}, {{}, 0x0, 0x10, 0x0, 0x34, 0x5}, {{}, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffd}, {{}, 0x3, 0xe, 0xfffff, 0x1000, 0x3}], 0xf93, &(0x7f00000001c0)={0x101}) sendmsg$unix(0xffffffffffffffff, &(0x7f0000000440)={0x0, 0x0, &(0x7f00000002c0)=[{&(0x7f0000000080)="d4c8471ad1f7563cb9", 0x9}], 0x1}, 0x1) fcntl$lock(0xffffffffffffffff, 0x0, &(0x7f0000000000)={0x0, 0x2}) 05:38:38 executing program 0: ioctl$BIOCSETWF(0xffffffffffffffff, 0x80104277, &(0x7f0000000180)={0x3, &(0x7f0000000000)=[{}, {}, {0x6}]}) sysctl$net_inet_gre(&(0x7f0000000000)={0x4, 0x2, 0x6}, 0x10, 0x0, 0x0, 0x0, 0x0) sysctl$kern(&(0x7f0000000000)={0x1, 0x42}, 0x6, 0x0, 0x0, 0x0, 0x0) 05:38:38 executing program 1: r0 = kqueue() r1 = fcntl$dupfd(r0, 0x2, 0xffffffffffffffff) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x3, 0x10, r1, 0x0, 0x0) pread(0xffffffffffffffff, &(0x7f0000000040)="1c54aafb91a6567906f301587b782a9d7760fb8ffdcb6016aef88d0b6c62e73cc30bcab2f8d66d7ad4a7e388f49f329610ab9f7703d262e3da019b632a472cc72559b6813a6ab9cf2842fbfdb8dc4a9ca19804d6", 0x54, 0x0, 0x0) pipe2(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}, 0x4) r3 = kqueue() kevent(r3, &(0x7f0000000440)=[{{}, 0xfffffffffffffff8, 0x40, 0x80000000, 0x7fff, 0x2}, {{}, 0xfffffffffffffffd, 0x4, 0x1, 0x7fff, 0x8000}, {{}, 0xffffffffffffffff, 0x91, 0x2, 0xf66b, 0x100000001}, {{}, 0xfffffffffffffffc, 0xc, 0x1, 0x5cc, 0x100000001}, {{}, 0xfffffffffffffffb, 0x4, 0xf0000000, 0x89, 0x5}, {{r2}, 0xfffffffffffffffe, 0x1, 0x5a6bdbf7d6f3faee, 0x7, 0xfff}], 0x40000000, &(0x7f00000002c0)=[{{}, 0xfffffffffffffffe, 0xa, 0xf0000000}, {{}, 0x0, 0x10, 0x0, 0x34, 0x5}, {{}, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffd}, {{}, 0x3, 0xe, 0xfffff, 0x1000, 0x3}], 0xf93, &(0x7f00000001c0)={0x101}) sendmsg$unix(0xffffffffffffffff, &(0x7f0000000440)={0x0, 0x0, &(0x7f00000002c0)=[{&(0x7f0000000080)="d4c8471ad1f7563cb9", 0x9}], 0x1}, 0x1) fcntl$lock(0xffffffffffffffff, 0x0, &(0x7f0000000000)={0x0, 0x2}) 05:38:38 executing program 0: syz_emit_ethernet(0x3e, &(0x7f00000001c0)={@local, @empty, [], {@ipv6={0x86dd, {0x1, 0x6, "bdc1cc", 0x8, 0x29, 0x0, @local={0xfe, 0x80, [], 0x0}, @mcast2, {[], @udp={{0x3, 0x2, 0x8}}}}}}}) 05:38:38 executing program 1: pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) read(r1, &(0x7f00000004c0)=""/249, 0xf9) writev(r0, &(0x7f0000000300)=[{&(0x7f0000000100)="fa", 0x1}], 0x1) 05:38:38 executing program 0: sysctl$net_inet_divert(&(0x7f0000000040), 0xa, &(0x7f00000004c0)="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", &(0x7f00000002c0)=0xfd2d, &(0x7f0000000700)="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", 0x1a8) 05:38:38 executing program 0: r0 = kqueue() r1 = fcntl$dupfd(r0, 0x2, 0xffffffffffffffff) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x3, 0x10, r1, 0x0, 0x0) kevent(0xffffffffffffffff, &(0x7f00000000c0)=[{{}, 0xfffffffffffffffa, 0x21, 0x0, 0x0, 0x49e}], 0x0, 0x0, 0x0, 0x0) fcntl$lock(0xffffffffffffffff, 0x0, &(0x7f0000000000)={0x0, 0x2, 0x0, 0x0, 0xffffffffffffffff}) 05:38:38 executing program 1: setrlimit(0x8, &(0x7f0000000040)={0x7, 0x8}) r0 = syz_open_pts() close(r0) r1 = syz_open_pts() ioctl$TIOCSETAF(r1, 0x802c7416, &(0x7f0000000540)={0x97ac, 0x0, 0xfffffffffffffff8, 0xfffffff9, "0900000000e6000000e800000012ce8cd900"}) writev(r0, &(0x7f0000000780)=[{&(0x7f0000001c00)="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", 0x1e5}], 0x1) vrele: bad writecount: 0xfffffd806e6b6410, type VCHR, use 0, write 1, hold 0, tag VT_UFS, ino 2678, on dev 4, 0 flags 0x180, effnlink 1, nlink 1 mode 020620, owner 0, group 4, size 0 panic: vrele: v_writecount != 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 370553 1690 0 0 0 0 syz-executor.1 *434066 1690 0 0 0x4000000 1K syz-executor.1 db_enter() at db_enter+0x18 panic(ffffffff8245fb0e) at panic+0x15e vrele(fffffd806e6b6410) at vrele+0x197 ptmioctl(5100,40287401,ffff8000222b7980,3,ffff80002123ca88) at ptmioctl+0x5b9 VOP_IOCTL(fffffd806e2c3bb8,40287401,ffff8000222b7980,3,fffffd807f7b7a80,ffff80002123ca88) at VOP_IOCTL+0x9a vn_ioctl(fffffd8064ff1720,40287401,ffff8000222b7980,ffff80002123ca88) at vn_ioctl+0xba sys_ioctl(ffff80002123ca88,ffff8000222b7a90,ffff8000222b7ae0) at sys_ioctl+0x4b0 syscall(ffff8000222b7b60) at syscall+0x4a1 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4a715df4d50, count: 6 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic vrele: v_writecount != 0 ddb{1}> trace db_enter() at db_enter+0x18 panic(ffffffff8245fb0e) at panic+0x15e vrele(fffffd806e6b6410) at vrele+0x197 ptmioctl(5100,40287401,ffff8000222b7980,3,ffff80002123ca88) at ptmioctl+0x5b9 VOP_IOCTL(fffffd806e2c3bb8,40287401,ffff8000222b7980,3,fffffd807f7b7a80,ffff80002123ca88) at VOP_IOCTL+0x9a vn_ioctl(fffffd8064ff1720,40287401,ffff8000222b7980,ffff80002123ca88) at vn_ioctl+0xba sys_ioctl(ffff80002123ca88,ffff8000222b7a90,ffff8000222b7ae0) at sys_ioctl+0x4b0 syscall(ffff8000222b7b60) at syscall+0x4a1 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4a715df4d50, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000222b73c0 rbx 0xffff8000222b73d0 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffffffff81b81665 kprintf+0x145 r9 0x1 r10 0xf432d3d4b710af55 r11 0x13b0dc824e07b0e r12 0x3000000008 r13 0xffff8000222b7470 r14 0x100 r15 0x1 rip 0xffffffff81e4d228 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000222b73b0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=434066 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=60, nice=20 forw=0xffffffffffffffff, list=0xffff80002123c2a8,0xffffffff828c76b0 process=0xffff800021235960 user=0xffff8000222b2000, vmspace=0xfffffd807eff9450 estcpu=10, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 1690 370553 12572 0 7 0 syz-executor.1 * 1690 434066 12572 0 7 0x4000000 syz-executor.1 12572 294545 52010 0 3 0x82 nanoslp syz-executor.1 25315 430246 52010 0 3 0x82 nanoslp syz-executor.0 52010 331429 81268 0 3 0x82 thrsleep syz-fuzzer 52010 97828 81268 0 3 0x4000082 thrsleep syz-fuzzer 52010 315508 81268 0 3 0x4000082 thrsleep syz-fuzzer 52010 2425 81268 0 3 0x4000082 kqread syz-fuzzer 52010 75073 81268 0 3 0x4000082 thrsleep syz-fuzzer 52010 363666 81268 0 3 0x4000082 thrsleep syz-fuzzer 52010 221018 81268 0 3 0x4000082 thrsleep syz-fuzzer 52010 255612 81268 0 3 0x4000082 thrsleep syz-fuzzer 81268 407746 90849 0 3 0x10008a sigsusp ksh 90849 417793 99144 0 3 0x92 select sshd 17170 373940 1 0 3 0x100083 ttyin getty 99144 461975 1 0 3 0x80 select sshd 54569 33535 88701 74 3 0x100092 bpf pflogd 88701 172495 1 0 3 0x80 netio pflogd 2751 90859 78635 73 3 0x100090 kqread syslogd 78635 53995 1 0 3 0x100082 netio syslogd 88371 30023 1 77 3 0x100090 poll dhclient 82531 263601 1 0 3 0x80 poll dhclient 45448 243075 0 0 3 0x14200 bored smr 41309 289783 0 0 3 0x14200 pgzero zerothread 42022 79377 0 0 3 0x14200 aiodoned aiodoned 98601 413809 0 0 3 0x14200 syncer update 20131 504567 0 0 3 0x14200 cleaner cleaner 31018 110772 0 0 3 0x14200 reaper reaper 47577 80661 0 0 3 0x14200 pgdaemon pagedaemon 19956 118542 0 0 3 0x14200 bored crynlk 3065 478993 0 0 3 0x14200 bored crypto 85884 95376 0 0 3 0x14200 bored viomb 2512 190583 0 0 3 0x40014200 acpi0 acpi0 65472 144502 0 0 3 0x40014200 idle1 63594 291389 0 0 3 0x14200 bored softnet 49561 71851 0 0 3 0x14200 bored systqmp 10013 233391 0 0 3 0x14200 bored systq 13455 362863 0 0 3 0x40014200 bored softclock 70018 266695 0 0 3 0x40014200 idle0 1 456539 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 1690 (syz-executor.1) thread 0xffff80002123ca88 (434066) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828d4128) #0 witness_lock+0x4b0 #1 vn_ioctl+0x40 #2 sys_ioctl+0x4b0 #3 syscall+0x4a1 #4 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9484 6416K 6674K 78643K 10595 0 pcb 13 8K 8K 78643K 13 0 rtable 105 3K 3K 78643K 199 0 ifaddr 44 10K 10K 78643K 45 0 counters 44 34K 34K 78643K 44 0 ioctlops 0 0K 4K 78643K 1469 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1226 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 53 0 proc 59 63K 83K 78643K 447 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 33 2K 2K 78643K 33 0 ether_multi 1 0K 0K 78643K 1 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 2K 78643K 360 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 165 29K 30K 78643K 879 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 10 0K 0K 78643K 10 0 temp 66 3971K 4035K 78643K 2080 0 kqueue 3 4K 4K 78643K 3 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 120 19 0 17 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 25 0 15 1 0 1 1 0 8 0 syncache 296 4 0 4 1 1 0 1 0 8 0 tcpqe 32 629 0 629 1 0 1 1 0 8 1 tcpcb 736 12 0 6 1 0 1 1 0 8 0 inpcb 304 41 0 34 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 kcovpl 48 2 0 0 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 12 0 0 1 0 1 1 0 8 0 pfstkey 112 12 0 0 1 0 1 1 0 8 0 pfstate 320 12 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 256 188 0 0 12 0 12 12 0 8 0 art_table 32 189 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1444 0 40 88 0 88 88 0 8 0 ffsino 272 1444 0 40 95 1 94 94 0 8 0 nchpl 144 1681 0 76 60 0 60 60 0 8 0 uvmvnodes 72 1492 0 0 28 0 28 28 0 8 0 vnodes 224 1492 0 0 88 0 88 88 0 8 0 namei 1024 4353 0 4353 2 1 1 1 0 8 1 percpumem 16 33 0 0 1 0 1 1 0 8 0 scxspl 216 4914 0 4914 5 1 4 4 0 8 4 plimitpl 152 17 0 8 1 0 1 1 0 8 0 sigapl 424 269 0 237 4 0 4 4 0 8 0 futexpl 56 143 0 143 1 0 1 1 0 8 1 knotepl 112 62 0 42 1 0 1 1 0 8 0 kqueuepl 168 18 0 16 1 0 1 1 0 8 0 pipepl 336 85 0 74 2 0 2 2 0 8 1 fdescpl 496 253 0 237 3 0 3 3 0 8 0 filepl 152 1164 0 1058 6 1 5 5 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 144 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 62 0 53 1 0 1 1 0 8 0 zombiepl 144 237 0 236 2 1 1 1 0 8 0 processpl 1080 269 0 236 3 0 3 3 0 8 0 procpl 672 300 0 259 5 1 4 4 0 8 0 sockpl 432 85 0 66 3 0 3 3 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 184 0 0 22 0 22 22 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 224 0 0 14 0 14 14 0 8 0 bufpl 280 3416 0 181 232 0 232 232 0 8 0 anonpl 24 41134 0 24006 107 2 105 105 0 186 0 amapchunkpl 152 1338 0 896 20 0 20 20 0 158 1 amappl16 200 819 0 178 35 0 35 35 0 8 1 amappl15 192 18 0 13 1 0 1 1 0 8 0 amappl14 184 23 0 19 1 0 1 1 0 8 0 amappl13 176 31 0 29 1 0 1 1 0 8 0 amappl12 168 10 0 8 1 0 1 1 0 8 0 amappl11 160 60 0 43 1 0 1 1 0 8 0 amappl10 152 28 0 23 1 0 1 1 0 8 0 amappl9 144 287 0 287 1 1 0 1 0 8 0 amappl8 136 180 0 121 3 0 3 3 0 8 0 amappl7 128 245 0 236 1 0 1 1 0 8 0 amappl6 120 89 0 78 1 0 1 1 0 8 0 amappl5 112 394 0 375 1 0 1 1 0 8 0 amappl4 104 281 0 254 1 0 1 1 0 8 0 amappl3 96 121 0 114 1 0 1 1 0 8 0 amappl2 88 1135 0 1064 3 1 2 3 0 8 0 amappl1 80 15889 0 15414 26 9 17 21 0 8 5 amappl 88 600 0 506 3 0 3 3 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 253 0 237 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 253 0 237 1 0 1 1 0 8 0 vmmpekpl 168 6143 0 6115 3 1 2 2 0 8 0 vmmpepl 168 39304 0 37396 120 7 113 113 0 357 24 vmsppl 368 252 0 237 2 0 2 2 0 8 0 rwobjpl 56 10424 0 9037 27 5 22 22 0 8 2 pdppl 4096 513 0 474 60 15 45 45 0 8 6 pvpl 32 144320 0 124005 174 0 174 174 0 265 8 pmappl 232 252 0 237 2 0 2 2 0 8 1 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 308 0 20 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff826d1ff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff828d3f20) at __mp_lock+0x129 softintr_dispatch(0) at softintr_dispatch+0x4e Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff828d3f20) at __mp_lock+0x129 upageflttrap(ffff8000222b1ca0,4a66f0d69a0) at upageflttrap+0x77 usertrap(ffff8000222b1ca0) at usertrap+0x21a recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffe9f10, count: 5 ddb{0}> trace x86_ipi_db(ffffffff826d1ff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff828d3f20) at __mp_lock+0x129 softintr_dispatch(0) at softintr_dispatch+0x4e Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff828d3f20) at __mp_lock+0x129 upageflttrap(ffff8000222b1ca0,4a66f0d69a0) at upageflttrap+0x77 usertrap(ffff8000222b1ca0) at usertrap+0x21a recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffe9f10, count: -10 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 panic(ffffffff8245fb0e) at panic+0x15e vrele(fffffd806e6b6410) at vrele+0x197 ptmioctl(5100,40287401,ffff8000222b7980,3,ffff80002123ca88) at ptmioctl+0x5b9 VOP_IOCTL(fffffd806e2c3bb8,40287401,ffff8000222b7980,3,fffffd807f7b7a80,ffff80002123ca88) at VOP_IOCTL+0x9a vn_ioctl(fffffd8064ff1720,40287401,ffff8000222b7980,ffff80002123ca88) at vn_ioctl+0xba sys_ioctl(ffff80002123ca88,ffff8000222b7a90,ffff8000222b7ae0) at sys_ioctl+0x4b0 syscall(ffff8000222b7b60) at syscall+0x4a1 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4a715df4d50, count: 6 ddb{1}> trace db_enter() at db_enter+0x18 panic(ffffffff8245fb0e) at panic+0x15e vrele(fffffd806e6b6410) at vrele+0x197 ptmioctl(5100,40287401,ffff8000222b7980,3,ffff80002123ca88) at ptmioctl+0x5b9 VOP_IOCTL(fffffd806e2c3bb8,40287401,ffff8000222b7980,3,fffffd807f7b7a80,ffff80002123ca88) at VOP_IOCTL+0x9a vn_ioctl(fffffd8064ff1720,40287401,ffff8000222b7980,ffff80002123ca88) at vn_ioctl+0xba sys_ioctl(ffff80002123ca88,ffff8000222b7a90,ffff8000222b7ae0) at sys_ioctl+0x4b0 syscall(ffff8000222b7b60) at syscall+0x4a1 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4a715df4d50, count: -9