-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2017:2473-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:2473 Issue date: 2017-08-15 CVE Names: CVE-2017-7533 ===================================================================== 1. Summary: An update for kernel 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 Client (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - noarch, ppc64, ppc64le, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * A race condition was found in the Linux kernel, present since v3.14-rc1 through v4.12. The race happens between threads of inotify_handle_event() and vfs_rename() while running the rename operation against the same file. As a result of the race the next slab data or the slab's free list pointer can be corrupted with attacker-controlled data. (CVE-2017-7533, Important) Red Hat would like to thank Leilei Lin (Alibaba Group), Fan Wu (The University of Hong Kong), and Shixiong Zhao (The University of Hong Kong) for reporting this issue. Bug Fix(es): * Previously, direct I/O read operations going past EOF returned an invalid error number, instead of reading 0 bytes and returning success, if these operations were in same XFS block with EOF. Consequently, creating multiple VMs from a Red Hat Enterprise Linux 7.4 template caused all the VMs to become unresponsive in the 'Image Locked' state. This update fixes the direct I/O feature of the file system, and VMs created from a Red Hat Enterprise Linux 7.4 template now work as expected. (BZ#1475669) 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/): 1468283 - CVE-2017-7533 kernel: a race between inotify_handle_event() and sys_rename() 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: kernel-3.10.0-693.1.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.1.1.el7.noarch.rpm kernel-doc-3.10.0-693.1.1.el7.noarch.rpm x86_64: kernel-3.10.0-693.1.1.el7.x86_64.rpm kernel-debug-3.10.0-693.1.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm kernel-devel-3.10.0-693.1.1.el7.x86_64.rpm kernel-headers-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.1.1.el7.x86_64.rpm perf-3.10.0-693.1.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm python-perf-3.10.0-693.1.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.1.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: kernel-3.10.0-693.1.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.1.1.el7.noarch.rpm kernel-doc-3.10.0-693.1.1.el7.noarch.rpm x86_64: kernel-3.10.0-693.1.1.el7.x86_64.rpm kernel-debug-3.10.0-693.1.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm kernel-devel-3.10.0-693.1.1.el7.x86_64.rpm kernel-headers-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.1.1.el7.x86_64.rpm perf-3.10.0-693.1.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm python-perf-3.10.0-693.1.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.1.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: kernel-3.10.0-693.1.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.1.1.el7.noarch.rpm kernel-doc-3.10.0-693.1.1.el7.noarch.rpm ppc64: kernel-3.10.0-693.1.1.el7.ppc64.rpm kernel-bootwrapper-3.10.0-693.1.1.el7.ppc64.rpm kernel-debug-3.10.0-693.1.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm kernel-debug-devel-3.10.0-693.1.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-693.1.1.el7.ppc64.rpm kernel-devel-3.10.0-693.1.1.el7.ppc64.rpm kernel-headers-3.10.0-693.1.1.el7.ppc64.rpm kernel-tools-3.10.0-693.1.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm kernel-tools-libs-3.10.0-693.1.1.el7.ppc64.rpm perf-3.10.0-693.1.1.el7.ppc64.rpm perf-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm python-perf-3.10.0-693.1.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm ppc64le: kernel-3.10.0-693.1.1.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-693.1.1.el7.ppc64le.rpm kernel-debug-3.10.0-693.1.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.1.1.el7.ppc64le.rpm kernel-devel-3.10.0-693.1.1.el7.ppc64le.rpm kernel-headers-3.10.0-693.1.1.el7.ppc64le.rpm kernel-tools-3.10.0-693.1.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm kernel-tools-libs-3.10.0-693.1.1.el7.ppc64le.rpm perf-3.10.0-693.1.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm python-perf-3.10.0-693.1.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm s390x: kernel-3.10.0-693.1.1.el7.s390x.rpm kernel-debug-3.10.0-693.1.1.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-693.1.1.el7.s390x.rpm kernel-debug-devel-3.10.0-693.1.1.el7.s390x.rpm kernel-debuginfo-3.10.0-693.1.1.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-693.1.1.el7.s390x.rpm kernel-devel-3.10.0-693.1.1.el7.s390x.rpm kernel-headers-3.10.0-693.1.1.el7.s390x.rpm kernel-kdump-3.10.0-693.1.1.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-693.1.1.el7.s390x.rpm kernel-kdump-devel-3.10.0-693.1.1.el7.s390x.rpm perf-3.10.0-693.1.1.el7.s390x.rpm perf-debuginfo-3.10.0-693.1.1.el7.s390x.rpm python-perf-3.10.0-693.1.1.el7.s390x.rpm python-perf-debuginfo-3.10.0-693.1.1.el7.s390x.rpm x86_64: kernel-3.10.0-693.1.1.el7.x86_64.rpm kernel-debug-3.10.0-693.1.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm kernel-devel-3.10.0-693.1.1.el7.x86_64.rpm kernel-headers-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.1.1.el7.x86_64.rpm perf-3.10.0-693.1.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm python-perf-3.10.0-693.1.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): noarch: kernel-doc-3.10.0-693.1.1.el7.noarch.rpm ppc64: kernel-debug-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-693.1.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-693.1.1.el7.ppc64.rpm perf-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm ppc64le: kernel-debug-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm kernel-debug-devel-3.10.0-693.1.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.1.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-693.1.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm x86_64: kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.1.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: kernel-3.10.0-693.1.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.1.1.el7.noarch.rpm kernel-doc-3.10.0-693.1.1.el7.noarch.rpm x86_64: kernel-3.10.0-693.1.1.el7.x86_64.rpm kernel-debug-3.10.0-693.1.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm kernel-devel-3.10.0-693.1.1.el7.x86_64.rpm kernel-headers-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.1.1.el7.x86_64.rpm perf-3.10.0-693.1.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm python-perf-3.10.0-693.1.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.1.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.1.1.el7.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-2017-7533 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 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFZkuAEXlSAg2UNWIIRAhLSAJ46/PzDPJbHx8j0EmBiZyQ8yHX8dgCgpmFA /gUa51/UONpYzeoZYO0Hu+A= =LD37 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce