[El-errata] New Ksplice updates for UEKR5 4.14.35 on OL7 (ELBA-2020-5523)

[Errata Announcements for Oracle Linux]

Synopsis: ELBA-2020-5523 can now be patched using Ksplice
CVEs: CVE-2019-15917

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Bug Fix Advisory, ELBA-2020-5523.
More information about this errata can be found at
https://linux.oracle.com/errata/ELBA-2020-5523.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running UEKR5 4.14.35
on OL7 install these updates.

On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf,
these updates will be installed automatically and you do not need to
take any action.

Alternatively, you can install these updates by running:

# /usr/sbin/uptrack-upgrade -y


DESCRIPTION

* Memory leak in Mellanox ConnextX HCA Infiniband CX-3 virtual functions.

Missing resource deallocation for Mellanox ConnectX HCA CX-3 virtual
function handling could result in a memory leak and eventual resource
exhaustion.

Orabug: 30811362, 30811374


* NULL pointer dereference when mounting a CIFS filesystem with invalid mount option.

A missing check when mounting a CIFS filesystem with an invalid devname
as a mount option could lead to a NULL pointer dereference. A local
attacker could use this flaw to cause a denial-of-service.

Orabug: 29480417


* CVE-2019-15917: Use-after-free when registering Bluetooth HCI uart device.

A logic error when registering Bluetooth HCI uart device could lead to a
use-after-free. A local attacker could use this flaw to cause a
denial-of-service.

Orabug: 30350313


* Memory corruption in Reliable Datagram Socket send completion.

Incorrect locking when completing a Reliable Datagram Socket send could
result in memory corruption and a kernel crash.

Orabug: 30634734


* Oracle ASM device hang during offline.

Incorrect error handling could result in an Oracle ASM device being
stuck in the online state during an offline operation.

Orabug: 30702783


* Network stall during RDMA failover.

A logic error when performing failover for an RDMA connection could
result in lengthly networking stalls under specific conditions.

Orabug: 30811351

SUPPORT

Ksplice support is available at ksplice-support_ww at oracle.com.