(RHSA-2019:0641) Important: kernel-rt security and bug fix update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: MIDI driver race condition leads to a double-free (CVE-2018-10902)

• kernel: net/rxrpc: overflow in decoding of krb5 principal (CVE-2017-7482)

• kernel: Missing length check of payload in net/sctp/sm_make_chunk.c:_sctp_make_chunk() function allows denial of service (CVE-2018-5803)

• kernel: use-after-free in ntfs_read_locked_inode in the ntfs.ko (CVE-2018-12929)

• kernel: stack-based out-of-bounds write in ntfs_end_buffer_async_read in the ntfs.ko (CVE-2018-12930)

• kernel: stack-based out-of-bounds write in ntfs_attr_find in the ntfs.ko (CVE-2018-12931)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• Remove the NTFS module from the MRG 2.5.x realtime kernel (BZ#1674523)

• update the MRG 2.5.z 3.10 kernel-rt sources (BZ#1674935)

Users of kernel-rt are advised to upgrade to these updated packages, which fix these bugs.