-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security, bug fix, and enhancement update Advisory ID: RHSA-2016:1051-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-1051.html Issue date: 2016-05-12 CVE Names: CVE-2016-0758 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Realtime (v. 7) - noarch, x86_64 Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64 3. Description: The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. The following packages have been upgraded to a newer upstream version: kernel-rt (3.10.0-327.18.2). This version provides a number of bug fixes and enhancements, including: * [scsi] bnx2fc: Fix FCP RSP residual parsing and remove explicit logouts * [scsi] mpt3sas: Fix for Asynchronous completion of timedout IO and task abort of timedout IO * [scsi] scsi_error: should not get sense for timeout IO in scsi error handler * [scsi] Revert libiscsi: Reduce locking contention in fast path * [mm] madvise: fix MADV_WILLNEED on shmem swapouts * [cpufreq] intel_pstate: decrease number of "HWP enabled" messages and enable HWP per CPU * [kernel] sched: Robustify topology setup * [kernel] sched/fair: Disable tg load_avg/runnable_avg update for root_task_group * [kernel] sched/fair: Move hot load_avg/runnable_avg into separate cacheline * [ib] mlx5: Fix RC transport send queue overhead computation * [fs] nfsd: fix clp->cl_revoked list deletion causing softlock in nfsd * [fs] ceph: multiple updates (BZ#1322033) Security Fix(es): * A flaw was found in the way the Linux kernel's ASN.1 DER decoder processed certain certificate files with tags of indefinite length. A local, unprivileged user could use a specially crafted X.509 certificate DER file to crash the system or, potentially, escalate their privileges on the system. (CVE-2016-0758, Important) Red Hat would like to thank Philip Pettersson of Samsung for reporting this issue. Bug Fix(es): * The hotplug lock and the console semaphore could be acquired in an incorrect order, which could previously lead to a deadlock causing the system console to freeze. The underlying code has been adjusted to acquire the locks in the correct order, resolving the bug with the console. (BZ#1324767) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1300257 - CVE-2016-0758 kernel: tags with indefinite length can corrupt pointers in asn1_find_indefinite_length() 1322033 - kernel-rt: update to the RHEL7.2.z batch#4 source tree 6. Package List: Red Hat Enterprise Linux for Real Time for NFV (v. 7): Source: kernel-rt-3.10.0-327.18.2.rt56.223.el7_2.src.rpm noarch: kernel-rt-doc-3.10.0-327.18.2.rt56.223.el7_2.noarch.rpm x86_64: kernel-rt-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-debug-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-debug-devel-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-debug-kvm-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-debug-kvm-debuginfo-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-debuginfo-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-devel-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-kvm-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-kvm-debuginfo-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-trace-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-trace-devel-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-trace-kvm-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-trace-kvm-debuginfo-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm Red Hat Enterprise Linux Realtime (v. 7): Source: kernel-rt-3.10.0-327.18.2.rt56.223.el7_2.src.rpm noarch: kernel-rt-doc-3.10.0-327.18.2.rt56.223.el7_2.noarch.rpm x86_64: kernel-rt-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-debug-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-debug-devel-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-debuginfo-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-devel-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-trace-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm kernel-rt-trace-devel-3.10.0-327.18.2.rt56.223.el7_2.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2016-0758 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2016 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFXNFbnXlSAg2UNWIIRAkVnAJ9Yw0l+7ujUjzhZZTkKi1Dde0x4MwCgsxPx y6n/RCihNggw65hPTJHc+H0= =Dhmr -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce