Paolo Bonzini
83676e9238
KVM: x86: avoid vmalloc(0) in the KVM_SET_CPUID
This causes an ugly dmesg splat. Beautified syzkaller testcase:
#include <unistd.h>
#include <sys/syscall.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <linux/kvm.h>
long r[8];
int main()
{
struct kvm_cpuid2 c = { 0 };
r[2] = open("/dev/kvm", O_RDWR);
r[3] = ioctl(r[2], KVM_CREATE_VM, 0);
r[4] = ioctl(r[3], KVM_CREATE_VCPU, 0x8);
r[7] = ioctl(r[4], KVM_SET_CPUID, &c);
return 0;
}
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2016-06-02 17:38:50 +02:00
..
2016-05-26 22:01:22 -07:00
2016-05-23 17:04:14 -07:00
2016-05-20 10:25:16 -07:00
2016-05-26 22:01:22 -07:00
2016-05-20 09:18:22 +02:00
2016-05-27 15:57:31 -07:00
2016-05-27 13:56:02 -07:00
2016-05-25 17:37:33 -07:00
2016-06-02 17:38:50 +02:00
2016-04-22 10:29:07 +02:00
2016-05-16 15:15:17 -07:00
2015-11-03 21:05:40 -08:00
2016-05-25 17:37:33 -07:00
2016-05-16 13:49:32 -04:00
2016-04-13 11:37:41 +02:00
2016-05-24 10:22:34 -07:00
2016-05-25 17:37:33 -07:00
2016-03-31 13:35:10 +02:00
2016-04-20 10:36:57 +02:00
2016-05-12 09:08:23 +02:00
2016-04-20 10:36:57 +02:00
2016-04-29 11:03:30 +02:00
2016-05-27 18:54:59 -07:00
2016-03-15 11:08:26 +01:00
2016-05-24 10:22:34 -07:00
2016-02-09 10:23:49 +01:00
2016-05-21 10:25:19 -07:00
2015-10-21 11:12:56 +02:00
2016-03-15 09:32:27 -07:00
2016-04-22 10:29:07 +02:00