Descriptionarch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform does not properly determine when nested NMI processing is occurring, which allows local users to cause a denial of service (skipped NMI) by modifying the rsp register, issuing a syscall instruction, and triggering an NMI.
Overall state of this security issue: Pending
This issue is currently rated as having low severity.
|National Vulnerability Database|
Note from the SUSE Security TeamThis problem existed since around Linux Kernel 3.3 and so does likely not affect SUSE Linux Enterprise 11 or older kernels. It also has minimal impact on the system, loss of NMIs can likely only affect the attacker itself. Due to difficulty of backport we do not plan to this minor issue. SUSE Bugzilla entries: 937969 [RESOLVED / FIXED], 937970 [RESOLVED], 938706 [RESOLVED / FIXED] No SUSE Security Announcements cross referenced.
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.
|SUSE Linux Enterprise Desktop 11 SP3||kernel-source||Affected|
|SUSE Linux Enterprise Desktop 11 SP4||kernel-source||Affected|
|SUSE Linux Enterprise Desktop 12 GA||kernel-source||Affected|
|SUSE Linux Enterprise Server 11 SP3||kernel-source||Affected|
|SUSE Linux Enterprise Server 11 SP4||kernel-source||Affected|
|SUSE Linux Enterprise Server 12 GA||kernel-source||Affected|
|SUSE Linux Enterprise Server for VMWare 11 SP3||kernel-source||Affected|