The SUSE Linux Enterprise 15-SP1 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
CVE-2018-12207: Untrusted virtual machines on Intel CPUs could exploit a race condition in the Instruction Fetch Unit of the Intel CPU to cause a Machine Exception during Page Size Change, causing the CPU core to be non-functional.
The Linux Kernel kvm hypervisor was adjusted to avoid page size changes in executable pages by splitting / merging huge pages into small pages as needed. More information can be found on https://www.suse.com/support/kb/doc/?id=7023735
CVE-2019-11135: Aborting an asynchronous TSX operation on Intel CPUs with Transactional Memory support could be used to facilitate sidechannel information leaks out of microarchitectural buffers, similar to the previously described 'Microarchitectural Data Sampling' attack.
The Linux kernel was supplemented with the option to disable TSX operation altogether (requiring CPU Microcode updates on older systems) and better flushing of microarchitectural buffers (VERW).
The set of options available is described in our TID at https://www.suse.com/support/kb/doc/?id=7024251
CVE-2019-16995: Fix a memory leak in hsrdevfinalize() if hsraddport failed to add a port, which may have caused denial of service (bsc#1152685).
CVE-2019-16233: drivers/scsi/qla2xxx/qlaos.c did not check the allocworkqueue return value, leading to a NULL pointer dereference. (bsc#1150457).
CVE-2019-10220: Added sanity checks on the pathnames passed to the user space. (bsc#1144903).
CVE-2019-17666: rtlwifi: Fix potential overflow in P2P code (bsc#1154372).
CVE-2019-16232: Fix a potential NULL pointer dereference in the Marwell libertas driver (bsc#1150465).
CVE-2019-16234: iwlwifi pcie driver did not check the alloc_workqueue return value, leading to a NULL pointer dereference. (bsc#1150452).
CVE-2019-17133: cfg80211 wireless extension did not reject a long SSID IE, leading to a Buffer Overflow (bsc#1153158).
CVE-2019-17056: The AFNFC network module did not enforce CAPNET_RAW, which meant that unprivileged users could create a raw socket (bsc#1152788).
The following non-security bugs were fixed:
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