DescriptionThe ring_buffer_resize function in kernel/trace/ring_buffer.c in the profiling subsystem in the Linux kernel before 4.6.1 mishandles certain integer calculations, which allows local users to gain privileges by writing to the /sys/kernel/debug/tracing/buffer_size_kb file.
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
|National Vulnerability Database||SUSE|
|National Vulnerability Database|
Note from the SUSE Security TeamSUSE Linux Enterprise 10 and SUSE Linux Enterprise 11 are not affected. On SUSE Linux Enterprise 12 GA and SP1 the fix is already included in the 3.12.61 and later versions, on SUSE Linux Enterprise 12 SP2 and SP3 the fix is included in 4.4.12 and later versions. SUSE Bugzilla entries: 1018342 [RESOLVED / WORKSFORME], 1020787 [RESOLVED / WONTFIX] 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Please note that this evaluation state might be work in progress, incomplete or outdated.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 12 SP1||kernel-source||Already fixed|
|SUSE Linux Enterprise Desktop 12 SP2||kernel-source||Already fixed|
|SUSE Linux Enterprise Server 11 SP4||kernel-source||Not affected|
|SUSE Linux Enterprise Server 12 SP1||kernel-source||Already fixed|
|SUSE Linux Enterprise Server 12 SP2||kernel-source||Already fixed|