Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2019:2262-1
Rating:	important
References:	bsc#1130972 bsc#1134399 bsc#1138744 bsc#1139358 bsc#1140652 bsc#1140945 bsc#1141401 bsc#1141402 bsc#1141452 bsc#1141453 bsc#1141454 bsc#1142023 bsc#1142098 bsc#1142254 bsc#1143045 bsc#1143189 bsc#1143191 bsc#1144257 bsc#1144273 bsc#1144288
Cross-References:	CVE-2018-20855 CVE-2019-1125 CVE-2019-11810 CVE-2019-13631 CVE-2019-13648 CVE-2019-14283 CVE-2019-14284
CVSS scores:	CVE-2018-20855 ( SUSE ): 5.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVE-2018-20855 ( NVD ): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVE-2018-20855 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2019-1125 ( SUSE ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2019-1125 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2019-11810 ( SUSE ): 3.9 CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L CVE-2019-11810 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2019-11810 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2019-13631 ( SUSE ): 5.9 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVE-2019-13631 ( NVD ): 6.8 CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2019-13648 ( SUSE ): 6.2 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2019-13648 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2019-14283 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H CVE-2019-14283 ( NVD ): 6.8 CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2019-14284 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2019-14284 ( NVD ): 6.2 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:	Public Cloud Module 12 SUSE Linux Enterprise High Performance Computing 12 SP2 SUSE Linux Enterprise High Performance Computing 12 SP3 SUSE Linux Enterprise High Performance Computing 12 SP4 SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Server 12 SUSE Linux Enterprise Server 12 SP1 SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1 SUSE Linux Enterprise Server 12 SP2 SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server for SAP Applications 12 SUSE Linux Enterprise Server for SAP Applications 12 SP1 SUSE Linux Enterprise Server for SAP Applications 12 SP2 SUSE Linux Enterprise Server for SAP Applications 12 SP3 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves seven vulnerabilities and has 13 security fixes can now be installed.

Description:

The SUSE Linux Enterprise 12 SP1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2019-1125: Enable Spectre v1 swapgs mitigations (bsc#1139358).
• CVE-2018-20855: An issue was discovered in create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to userspace (bsc#1143045).
• CVE-2019-14284: The drivers/block/floppy.c allowed a denial of service by setup_format_params division-by-zero. Two consecutive ioctls can trigger the bug: the first one should set the drive geometry with .sect and .rate values that make F_SECT_PER_TRACK be zero. Next, the floppy format operation should be called. It can be triggered by an unprivileged local user even when a floppy disk has not been inserted. NOTE: QEMU creates the floppy device by default (bsc#1143189).
• CVE-2019-14283: The function set_geometry in drivers/block/floppy.c did not validate the sect and head fields, as demonstrated by an integer overflow and out-of-bounds read. It can be triggered by an unprivileged local user when a floppy disk has been inserted. NOTE: QEMU creates the floppy device by default (bsc#1143191).
• CVE-2019-11810: A NULL pointer dereference can occur when megasas_create_frame_pool() fails in megasas_alloc_cmds() in drivers/scsi/megaraid/megaraid_sas_base.c. This causes a Denial of Service, related to a use-after-free (bsc#1134399).
• CVE-2019-13648: In the Linux kernel on the powerpc platform, when hardware transactional memory is disabled, a local user can cause a denial of service (TM Bad Thing exception and system crash) via a sigreturn() system call that sends a crafted signal frame. This affects arch/powerpc/kernel/signal_32.c and arch/powerpc/kernel/signal_64.c (bnc#1142254).
• CVE-2019-13631: In parse_hid_report_descriptor in drivers/input/tablet/gtco.c, a malicious USB device can send an HID report that triggers an out-of-bounds write during generation of debugging messages (bsc#1142023).

The following non-security bugs were fixed:

• bcache: Revert "bcache: fix high CPU occupancy during journal" (bsc#1140652, bsc#1144288).
• bcache: Revert "bcache: free heap cache_set->flush_btree in bch_journal_free" (bsc#1140652, bsc#1144288).
• bcache: add reclaimed_journal_buckets to struct cache_set (bsc#1140652, bsc#1144288).
• bcache: fix race in btree_flush_write() (bsc#1140652, bsc#1144288).
• bcache: fix stack corruption by PRECEDING_KEY() (bsc#1130972, bsc#1144257).
• bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached (bsc#1130972, bsc#1144273).
• bcache: performance improvement for btree_flush_write() (bsc#1140652, bsc#1144288).
• bcache: remove retry_flush_write from struct cache_set (bsc#1140652, bsc#1144288).
• mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing (bsc#1142098).
• powerpc/watchpoint: Restore NV GPRs while returning from exception (bsc#1140945, bsc#1141401, bsc#1141402, bsc#1141452, bsc#1141453, bsc#1141454).
• xen-netfront: use napi_complete() correctly to prevent Rx stalling (bsc#1138744).

Special Instructions and Notes:

• Please reboot the system after installing this update.

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• Public Cloud Module 12
  zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2019-2262=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP1
  zypper in -t patch SUSE-SLE-SAP-12-SP1-2019-2262=1
• SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1
  zypper in -t patch SUSE-SLE-SERVER-12-SP1-2019-2262=1

Package List:

• Public Cloud Module 12 (nosrc x86_64)
  • kernel-ec2-3.12.74-60.64.121.1
• Public Cloud Module 12 (x86_64)
  • kernel-ec2-debuginfo-3.12.74-60.64.121.1
  • kernel-ec2-extra-debuginfo-3.12.74-60.64.121.1
  • kernel-ec2-debugsource-3.12.74-60.64.121.1
  • kernel-ec2-devel-3.12.74-60.64.121.1
  • kernel-ec2-extra-3.12.74-60.64.121.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP1 (nosrc x86_64)
  • kernel-default-3.12.74-60.64.121.1
  • kernel-xen-3.12.74-60.64.121.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP1 (x86_64)
  • kernel-default-debuginfo-3.12.74-60.64.121.1
  • kernel-default-base-debuginfo-3.12.74-60.64.121.1
  • kernel-xen-base-3.12.74-60.64.121.1
  • kernel-default-base-3.12.74-60.64.121.1
  • kernel-default-debugsource-3.12.74-60.64.121.1
  • kernel-default-devel-3.12.74-60.64.121.1
  • kernel-xen-base-debuginfo-3.12.74-60.64.121.1
  • kernel-xen-debuginfo-3.12.74-60.64.121.1
  • kernel-xen-debugsource-3.12.74-60.64.121.1
  • kernel-xen-devel-3.12.74-60.64.121.1
  • kgraft-patch-3_12_74-60_64_121-default-1-2.3.1
  • kgraft-patch-3_12_74-60_64_121-xen-1-2.3.1
  • kernel-syms-3.12.74-60.64.121.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP1 (noarch)
  • kernel-source-3.12.74-60.64.121.1
  • kernel-devel-3.12.74-60.64.121.1
  • kernel-macros-3.12.74-60.64.121.1
• SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1 (nosrc ppc64le s390x x86_64)
  • kernel-default-3.12.74-60.64.121.1
• SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1 (ppc64le s390x x86_64)
  • kernel-default-debuginfo-3.12.74-60.64.121.1
  • kernel-default-base-debuginfo-3.12.74-60.64.121.1
  • kernel-default-base-3.12.74-60.64.121.1
  • kernel-default-debugsource-3.12.74-60.64.121.1
  • kernel-default-devel-3.12.74-60.64.121.1
  • kernel-syms-3.12.74-60.64.121.1
• SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1 (noarch)
  • kernel-source-3.12.74-60.64.121.1
  • kernel-devel-3.12.74-60.64.121.1
  • kernel-macros-3.12.74-60.64.121.1
• SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1 (s390x)
  • kernel-default-man-3.12.74-60.64.121.1
• SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1 (nosrc x86_64)
  • kernel-xen-3.12.74-60.64.121.1
• SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1 (x86_64)
  • kernel-xen-base-3.12.74-60.64.121.1
  • kernel-xen-debuginfo-3.12.74-60.64.121.1
  • kernel-xen-base-debuginfo-3.12.74-60.64.121.1
  • kernel-xen-debugsource-3.12.74-60.64.121.1
  • kernel-xen-devel-3.12.74-60.64.121.1
  • kgraft-patch-3_12_74-60_64_121-default-1-2.3.1
  • kgraft-patch-3_12_74-60_64_121-xen-1-2.3.1

References:

• https://www.suse.com/security/cve/CVE-2018-20855.html
• https://www.suse.com/security/cve/CVE-2019-1125.html
• https://www.suse.com/security/cve/CVE-2019-11810.html
• https://www.suse.com/security/cve/CVE-2019-13631.html
• https://www.suse.com/security/cve/CVE-2019-13648.html
• https://www.suse.com/security/cve/CVE-2019-14283.html
• https://www.suse.com/security/cve/CVE-2019-14284.html
• https://bugzilla.suse.com/show_bug.cgi?id=1130972
• https://bugzilla.suse.com/show_bug.cgi?id=1134399
• https://bugzilla.suse.com/show_bug.cgi?id=1138744
• https://bugzilla.suse.com/show_bug.cgi?id=1139358
• https://bugzilla.suse.com/show_bug.cgi?id=1140652
• https://bugzilla.suse.com/show_bug.cgi?id=1140945
• https://bugzilla.suse.com/show_bug.cgi?id=1141401
• https://bugzilla.suse.com/show_bug.cgi?id=1141402
• https://bugzilla.suse.com/show_bug.cgi?id=1141452
• https://bugzilla.suse.com/show_bug.cgi?id=1141453
• https://bugzilla.suse.com/show_bug.cgi?id=1141454
• https://bugzilla.suse.com/show_bug.cgi?id=1142023
• https://bugzilla.suse.com/show_bug.cgi?id=1142098
• https://bugzilla.suse.com/show_bug.cgi?id=1142254
• https://bugzilla.suse.com/show_bug.cgi?id=1143045
• https://bugzilla.suse.com/show_bug.cgi?id=1143189
• https://bugzilla.suse.com/show_bug.cgi?id=1143191
• https://bugzilla.suse.com/show_bug.cgi?id=1144257
• https://bugzilla.suse.com/show_bug.cgi?id=1144273
• https://bugzilla.suse.com/show_bug.cgi?id=1144288