CVE-2026-98714
Linux: KVM: SVM: Update control fields on #VMEXIT if and only if VMRUN succeeded
Linux LinuxOperating systemsCVSS
NoneNot scoredExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.15%Chance of exploitation activity in the next 30 days, higher than 4% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
In the Linux kernel, the following vulnerability has been resolved:
KVM: SVM: Update control fields on #VMEXIT if and only if VMRUN succeeded
Leave control.erap_ctl and control.clean as-is in the VMCS if VMRUN fails, because as per AMD:
there's no explicit architectural guarantee about the behavior in the presence of VMRUN failures. So the best thing to do would be to assume that if VMRUN fails, the actions requested in the control fields may not have been performed.
Text from CVE List
Affected versions 5
- Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 8676b29d186fcb5c1251d8152fc91d19421e5600CVE List
- Linuxaffected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e27fc915c8f575ab5630e27d97465c2077d4b9d1CVE List
- Linuxaffected: all versions before 7.2.10CVE List
- Linuxunaffected: 7.2.10 through 7.2.*CVE List
- Linuxunaffected: 7.3CVE List