Synopsis:          Important: kernel security and bug fix update
Advisory ID:       SLSA-2021:0856-1
Issue Date:        2021-03-16
CVE Numbers:       CVE-2020-28374
                   CVE-2020-29661
                   CVE-2019-19532
                   CVE-2020-7053
                   CVE-2020-14351
                   CVE-2020-25211
                   CVE-2020-25645
                   CVE-2020-25656
                   CVE-2020-25705
                   CVE-2021-20265
                   CVE-2020-0427
--

Security Fix(es):

* kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in
net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)

* kernel: SCSI target (LIO) write to any block on ILO backstore
(CVE-2020-28374)

* kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an  use-
after-free (CVE-2020-29661)

* kernel: malicious USB devices can lead to multiple out-of-bounds write
(CVE-2019-19532)

* kernel: out-of-bounds reads in pinctrl subsystem. (CVE-2020-0427)

* kernel: use-after-free in i915_ppgtt_close in
drivers/gpu/drm/i915/i915_gem_gtt.c (CVE-2020-7053)

* kernel: performance counters race condition use-after-free
(CVE-2020-14351)

* kernel: Geneve/IPsec traffic may be unencrypted between two Geneve
endpoints (CVE-2020-25645)

* kernel: use-after-free in read in vt_do_kdgkb_ioctl (CVE-2020-25656)

* kernel: ICMP rate limiting can be used for DNS poisoning attack
(CVE-2020-25705)

* kernel: increase slab leak leads to DoS (CVE-2021-20265)

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

Bug Fix(es):

* BUG: scheduling while atomic: memory allocation under spinlock in
scsi_register_device_handler()

* WARNING in __iscsit_free_cmd during recovery Abort

* lpfc does not issue adisc to fcp-2 devices, does not respond to nvme
targer that send an adisc.

* Panic in semctl_nolock.constprop.15+0x25b

* [SL 7.7][md]Crash due to invalid pool workqueue pointer, work queue
race

* Guest crash on intel CPU with -cpu host,-spec-ctrl,+ibpb

* SL7.9 - kernel/uv: handle length extension properly

* Commit b144f013fc16a06d7a4b9a4be668a3583fafeda2 'i40e: don't report link
up for a VF who hasn't enabled queues' introducing issues with VM using
DPDK

* writing to /sys/devices/(...)/net/eno49/queues/tx-16/xps_cpus triggers
kernel panic

* [Hyper-V][SL-7.9]video: hyperv_fb: Fix the cache type when mapping the
VRAM Edit

* kvm-rhel7.9 [AMD] - system crash observed while powering on virtual
machine with attached VF interfaces.

* kernel: nvme nvme7: Connect command failed, error wo/DNR bit: 2

* dm-mirror crashes from assuming underlying storage will have a non-NULL
merge_bvec_fn

* watchdog: use nmi registers snapshot in hardlockup handler

* [DELL EMC 7.9 BUG] - Intel E810 NIC interfaces are not functional in SL
7.9 on system with AMD Rome CPUs

* [DELL EMC BUG] SL system log shows AMD-Vi error when system connected
with Gen 4 NVMe drives.
--

SL7
  x86_64
    bpftool-3.10.0-1160.21.1.el7.x86_64.rpm
    bpftool-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm
    kernel-3.10.0-1160.21.1.el7.x86_64.rpm
    kernel-debug-3.10.0-1160.21.1.el7.x86_64.rpm
    kernel-debug-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm
    kernel-debug-devel-3.10.0-1160.21.1.el7.x86_64.rpm
    kernel-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm
    kernel-debuginfo-common-x86_64-3.10.0-1160.21.1.el7.x86_64.rpm
    kernel-devel-3.10.0-1160.21.1.el7.x86_64.rpm
    kernel-headers-3.10.0-1160.21.1.el7.x86_64.rpm
    kernel-tools-3.10.0-1160.21.1.el7.x86_64.rpm
    kernel-tools-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm
    kernel-tools-libs-3.10.0-1160.21.1.el7.x86_64.rpm
    perf-3.10.0-1160.21.1.el7.x86_64.rpm
    perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm
    python-perf-3.10.0-1160.21.1.el7.x86_64.rpm
    python-perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm
    kernel-tools-libs-devel-3.10.0-1160.21.1.el7.x86_64.rpm
  noarch
    kernel-abi-whitelists-3.10.0-1160.21.1.el7.noarch.rpm
    kernel-doc-3.10.0-1160.21.1.el7.noarch.rpm

- Scientific Linux Development Team