-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: kernel security, bug fix, and enhancement update Advisory ID: RHSA-2021:0336-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0336 Issue date: 2021-02-02 CVE Names: CVE-2020-15436 CVE-2020-35513 ==================================================================== 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 Moderate. 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) - 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): * kernel: use-after-free in fs/block_dev.c (CVE-2020-15436) * kernel: Nfsd failure to clear umask after processing an open or create (CVE-2020-35513) 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): * double free issue in filelayout_alloc_commit_info (BZ#1679980) * Regression: Plantronics Device SHS2355-11 PTT button does not work after update to 7.7 (BZ#1769502) * Openstack network node reports unregister_netdevice: waiting for qr-3cec0c92-9a to become free. Usage count = 1 (BZ#1809519) * dlm: add ability to interrupt waiting for acquire POSIX lock (BZ#1826858) * [Azure][RHEL7] soft lockups and performance loss occurring during final fsync with parallel dd writes to xfs filesystem in azure instance (BZ#1859364) * Guest crashed when hotplug vcpus on booting kernel stage (BZ#1866138) * soft lockup occurs while a thread group leader is waiting on tasklist_waiters in mm_update_next_owner() where a huge number of the thread group members are exiting and trying to take the tasklist_lock. (BZ#1872110) * [DELL EMC 7.6 BUG] Kioxia CM6 NVMe drive fails to enumerate (BZ#1883403) * [Hyper-V][RHEL7] Request to included a commit that adds a timeout to vmbus_wait_for_unload (BZ#1888979) * Unable to discover the LUNs from new storage port (BZ#1889311) * RHEL 7.9 Kernel panic at ceph_put_snap_realm+0x21 (BZ#1890386) * A hard lockup occurrs where one task is looping in an sk_lock spinlock that has been taken by another task running timespec64_add_ns(). (BZ#1890911) * ethtool/mlx5_core provides incorrect SFP module info (BZ#1896756) * RHEL7.7 - zcrypt: Fix ZCRYPT_PERDEV_REQCNT ioctl (BZ#1896826) * RHEL7.7 - s390/dasd: Fix zero write for FBA devices (BZ#1896839) * [Azure]IP forwarding issue in netvsc[7.9.z] (BZ#1898280) * Security patch for CVE-2020-25212 breaks directory listings via 'ls' on NFS V4.2 shares mounted with selinux enabled labels (BZ#1917504) Enhancement(s): * RFE : handle better ERRbaduid on SMB1 (BZ#1847041) 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/): 1901168 - CVE-2020-15436 kernel: use-after-free in fs/block_dev.c 1905208 - CVE-2020-35513 kernel: fix nfsd failure to clear umask after processing an open or create [rhel-7] 1911309 - CVE-2020-35513 kernel: Nfsd failure to clear umask after processing an open or create 1917504 - Security patch for CVE-2020-25212 breaks directory listings via 'ls' on NFS V4.2 shares mounted with selinux enabled labels 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: kernel-3.10.0-1160.15.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1160.15.2.el7.noarch.rpm kernel-doc-3.10.0-1160.15.2.el7.noarch.rpm x86_64: bpftool-3.10.0-1160.15.2.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.15.2.el7.x86_64.rpm kernel-devel-3.10.0-1160.15.2.el7.x86_64.rpm kernel-headers-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.15.2.el7.x86_64.rpm perf-3.10.0-1160.15.2.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm python-perf-3.10.0-1160.15.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: bpftool-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1160.15.2.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: kernel-3.10.0-1160.15.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1160.15.2.el7.noarch.rpm kernel-doc-3.10.0-1160.15.2.el7.noarch.rpm x86_64: bpftool-3.10.0-1160.15.2.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.15.2.el7.x86_64.rpm kernel-devel-3.10.0-1160.15.2.el7.x86_64.rpm kernel-headers-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.15.2.el7.x86_64.rpm perf-3.10.0-1160.15.2.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm python-perf-3.10.0-1160.15.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: bpftool-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1160.15.2.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: kernel-3.10.0-1160.15.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1160.15.2.el7.noarch.rpm kernel-doc-3.10.0-1160.15.2.el7.noarch.rpm ppc64: bpftool-3.10.0-1160.15.2.el7.ppc64.rpm bpftool-debuginfo-3.10.0-1160.15.2.el7.ppc64.rpm kernel-3.10.0-1160.15.2.el7.ppc64.rpm kernel-bootwrapper-3.10.0-1160.15.2.el7.ppc64.rpm kernel-debug-3.10.0-1160.15.2.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1160.15.2.el7.ppc64.rpm kernel-debug-devel-3.10.0-1160.15.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-1160.15.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1160.15.2.el7.ppc64.rpm kernel-devel-3.10.0-1160.15.2.el7.ppc64.rpm kernel-headers-3.10.0-1160.15.2.el7.ppc64.rpm kernel-tools-3.10.0-1160.15.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1160.15.2.el7.ppc64.rpm kernel-tools-libs-3.10.0-1160.15.2.el7.ppc64.rpm perf-3.10.0-1160.15.2.el7.ppc64.rpm perf-debuginfo-3.10.0-1160.15.2.el7.ppc64.rpm python-perf-3.10.0-1160.15.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1160.15.2.el7.ppc64.rpm ppc64le: bpftool-3.10.0-1160.15.2.el7.ppc64le.rpm bpftool-debuginfo-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-debug-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-devel-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-headers-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-tools-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-tools-libs-3.10.0-1160.15.2.el7.ppc64le.rpm perf-3.10.0-1160.15.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-1160.15.2.el7.ppc64le.rpm python-perf-3.10.0-1160.15.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1160.15.2.el7.ppc64le.rpm s390x: bpftool-3.10.0-1160.15.2.el7.s390x.rpm bpftool-debuginfo-3.10.0-1160.15.2.el7.s390x.rpm kernel-3.10.0-1160.15.2.el7.s390x.rpm kernel-debug-3.10.0-1160.15.2.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-1160.15.2.el7.s390x.rpm kernel-debug-devel-3.10.0-1160.15.2.el7.s390x.rpm kernel-debuginfo-3.10.0-1160.15.2.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-1160.15.2.el7.s390x.rpm kernel-devel-3.10.0-1160.15.2.el7.s390x.rpm kernel-headers-3.10.0-1160.15.2.el7.s390x.rpm kernel-kdump-3.10.0-1160.15.2.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-1160.15.2.el7.s390x.rpm kernel-kdump-devel-3.10.0-1160.15.2.el7.s390x.rpm perf-3.10.0-1160.15.2.el7.s390x.rpm perf-debuginfo-3.10.0-1160.15.2.el7.s390x.rpm python-perf-3.10.0-1160.15.2.el7.s390x.rpm python-perf-debuginfo-3.10.0-1160.15.2.el7.s390x.rpm x86_64: bpftool-3.10.0-1160.15.2.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.15.2.el7.x86_64.rpm kernel-devel-3.10.0-1160.15.2.el7.x86_64.rpm kernel-headers-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.15.2.el7.x86_64.rpm perf-3.10.0-1160.15.2.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm python-perf-3.10.0-1160.15.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: bpftool-debuginfo-3.10.0-1160.15.2.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1160.15.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-1160.15.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1160.15.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1160.15.2.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-1160.15.2.el7.ppc64.rpm perf-debuginfo-3.10.0-1160.15.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1160.15.2.el7.ppc64.rpm ppc64le: bpftool-debuginfo-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-debug-devel-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1160.15.2.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-1160.15.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-1160.15.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1160.15.2.el7.ppc64le.rpm x86_64: bpftool-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1160.15.2.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: kernel-3.10.0-1160.15.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1160.15.2.el7.noarch.rpm kernel-doc-3.10.0-1160.15.2.el7.noarch.rpm x86_64: bpftool-3.10.0-1160.15.2.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.15.2.el7.x86_64.rpm kernel-devel-3.10.0-1160.15.2.el7.x86_64.rpm kernel-headers-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.15.2.el7.x86_64.rpm perf-3.10.0-1160.15.2.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm python-perf-3.10.0-1160.15.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: bpftool-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1160.15.2.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.15.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.15.2.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-2020-15436 https://access.redhat.com/security/cve/CVE-2020-35513 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYBlBsdzjgjWX9erEAQhTZhAAmSFzEZeB0CWYNaJ2PVwoFm4PA9rdYDyg G1j/plxrO6bczNEz+XDnAzRPrCbJRPPt6VJxjpLkb25ph0f5tQ+Q7Ph7sAefSbDX BLDjjvl+Wd1g2FEfIQ43wDp8UWuFCVVMF3ajJHFz9ROqrA/1hs0gj7ht9gXRlttT LSI67A08tEWRPtaf5c1M8h/IJtZiF4sfYDrfhp4mFRTZYybTvVjML+xf69Qq7o2D AsxbyKRVNQKC0Epm6C+Tzbw6SxhonrAQyjADWenQ8bCS2TF8WY2OZA7sNs7nddZu Ha/mCB2vSR2WCWLGxCLXTtsK3y52qPIyUn4mBmatJUIBcbJMnQbgZgWrEcTobsoD N5MWdqE6xGjct0KMz0fV6J9D5JWQjUN4O8K0vVQP4aoAX25jMWCq14RLLRUvusJm dLI59E5nN1pLMlADiAAh2Iceac/daIF9fvWn2XoF16/ZQNffa0yCiNFaDg+AW4Tg Z/b82VoOiz7uJWyv06TMcljafEaIxjpnjGmpKQ2qz8UYoxYYsnRyKpHJxLeiB53A TKbkiQJoFutNeUcbBSA6F6sqLlaJ7CtoyzxsVVwM+LtYF1iUXqC+Hp6Gs5NB8WXr JQSrrv0X0H7sAu7FHCyL/ygMQK/IiZKiPxiRBZJH6pJz5OL8GVKxR1CSZmHXvgKo QPLPtfMOGPs=Hdxh -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce