94 lines
2.9 KiB
Bash
Executable File
94 lines
2.9 KiB
Bash
Executable File
#!/bin/sh
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# panic: sbsndptr_noadv: sb_mb is NULL
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# cpuid = 0
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# time = 1586867804
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# KDB: stack backtrace:
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# db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0025a68360
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# vpanic() at vpanic+0x1c7/frame 0xfffffe0025a683c0
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# panic() at panic+0x43/frame 0xfffffe0025a68420
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# sbsndptr_noadv() at sbsndptr_noadv+0xae/frame 0xfffffe0025a68460
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# rack_output() at rack_output+0x51f5/frame 0xfffffe0025a68700
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# tcp_usr_send() at tcp_usr_send+0x5c7/frame 0xfffffe0025a687e0
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# sosend_generic() at sosend_generic+0x8fd/frame 0xfffffe0025a688e0
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# sosend() at sosend+0xc6/frame 0xfffffe0025a68950
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# kern_sendit() at kern_sendit+0x33d/frame 0xfffffe0025a68a00
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# sendit() at sendit+0x224/frame 0xfffffe0025a68a60
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# sys_sendto() at sys_sendto+0x5c/frame 0xfffffe0025a68ac0
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# amd64_syscall() at amd64_syscall+0x262/frame 0xfffffe0025a68bf0
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[ `uname -p` = "i386" ] && exit 0
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. ../default.cfg
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cat > /tmp/syzkaller10.c <<EOF
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// https://syzkaller.appspot.com/bug?id=048f650e99696f881872a285cef0e3b9bd4f4e25
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// autogenerated by syzkaller (https://github.com/google/syzkaller)
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#define _GNU_SOURCE
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#include <pwd.h>
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#include <stdarg.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/endian.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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uint64_t r[1] = {0xffffffffffffffff};
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int main(void)
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{
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syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul);
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intptr_t res = 0;
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res = syscall(SYS_socket, 2ul, 1ul, 0);
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if (res != -1)
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r[0] = res;
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memcpy((void*)0x20000080,
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"rack\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
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"\000\000\000\000\000\000\000\000\000\000\000\000",
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32);
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*(uint32_t*)0x200000a0 = 0;
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syscall(SYS_setsockopt, r[0], 6, 0x2000, 0x20000080ul, 0x24ul);
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*(uint8_t*)0x20000000 = 0x2c;
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*(uint8_t*)0x20000001 = 2;
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*(uint16_t*)0x20000002 = htobe16(0x4e21);
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*(uint32_t*)0x20000004 = htobe32(-1);
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*(uint8_t*)0x20000008 = 0;
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*(uint8_t*)0x20000009 = 0;
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*(uint8_t*)0x2000000a = 0;
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*(uint8_t*)0x2000000b = 0;
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*(uint8_t*)0x2000000c = 0;
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*(uint8_t*)0x2000000d = 0;
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*(uint8_t*)0x2000000e = 0;
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*(uint8_t*)0x2000000f = 0;
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syscall(SYS_sendto, r[0], 0ul, 0ul, 0ul, 0x20000000ul, 0x10ul);
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*(uint8_t*)0x20000040 = 0x10;
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*(uint8_t*)0x20000041 = 2;
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*(uint16_t*)0x20000042 = htobe16(0x4e21);
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*(uint32_t*)0x20000044 = htobe32(0);
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*(uint8_t*)0x20000048 = 0;
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*(uint8_t*)0x20000049 = 0;
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*(uint8_t*)0x2000004a = 0;
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*(uint8_t*)0x2000004b = 0;
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*(uint8_t*)0x2000004c = 0;
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*(uint8_t*)0x2000004d = 0;
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*(uint8_t*)0x2000004e = 0;
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*(uint8_t*)0x2000004f = 0;
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syscall(SYS_sendto, r[0], 0ul, 0ul, 0x60005ul, 0x20000040ul, 0x10ul);
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return 0;
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}
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EOF
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mycc -o /tmp/syzkaller10 -Wall -Wextra -O2 /tmp/syzkaller10.c -lpthread ||
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exit 1
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(cd /tmp; ./syzkaller10) &
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sleep 60
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pkill -9 syzkaller10
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wait
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rm -f /tmp/syzkaller10 /tmp/syzkaller10.c /tmp/syzkaller10.core
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exit 0
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