SUSE Security Update: Security update for the Linux Kernel ______________________________________________________________________________ Announcement ID: SUSE-SU-2018:0841-1 Rating: important References: #1012382 #1045538 #1048585 #1049128 #1050431 #1054305 #1059174 #1060279 #1060682 #1063544 #1064861 #1068032 #1068984 #1069508 #1070623 #1070781 #1073311 #1074488 #1074621 #1074880 #1075088 #1075091 #1075410 #1075617 #1075621 #1075908 #1075994 #1076017 #1076154 #1076278 #1076437 #1076849 #1077191 #1077355 #1077406 #1077487 #1077560 #1077922 #1078875 #1079917 #1080133 #1080359 #1080363 #1080372 #1080579 #1080685 #1080774 #1081500 #936530 #962257 Cross-References: CVE-2015-1142857 CVE-2017-13215 CVE-2017-17741 CVE-2017-18017 CVE-2017-18079 CVE-2017-5715 CVE-2018-1000004 CVE-2018-5332 CVE-2018-5333 Affected Products: SUSE Linux Enterprise Real Time Extension 11-SP4 SUSE Linux Enterprise Debuginfo 11-SP4 ______________________________________________________________________________ An update that solves 9 vulnerabilities and has 41 fixes is now available. Description: The SUSE Linux Enterprise 11 SP4 Realtime kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2017-5715: Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (bnc#1068032). The previous fix using CPU Microcode has been complemented by building the Linux Kernel with return trampolines aka "retpolines". - CVE-2015-1142857: On multiple SR-IOV cars it is possible for VF's assigned to guests to send ethernet flow control pause frames via the PF. This includes Linux kernel ixgbe driver, i40e/i40evf driver and the DPDK, additionally multiple vendor NIC firmware is affected (bnc#1077355). - CVE-2017-13215: A elevation of privilege vulnerability in the Upstream kernel skcipher. (bnc#1075908). - CVE-2017-17741: The KVM implementation in the Linux kernel allowed attackers to obtain potentially sensitive information from kernel memory, aka a write_mmio stack-based out-of-bounds read, related to arch/x86/kvm/x86.c and include/trace/events/kvm.h (bnc#1073311). - CVE-2017-18017: The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel allowed remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other impact by leveraging the presence of xt_TCPMSS in an iptables action (bnc#1074488). - CVE-2017-18079: drivers/input/serio/i8042.c in the Linux kernel allowed attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact because the port->exists value can change after it is validated (bnc#1077922). - CVE-2018-1000004: In the Linux kernel a race condition vulnerability exists in the sound system, this can lead to a deadlock and denial of service condition (bnc#1076017). - CVE-2018-5332: In the Linux kernel the rds_message_alloc_sgs() function did not validate a value that is used during DMA page allocation, leading to a heap-based out-of-bounds write (related to the rds_rdma_extra_size function in net/rds/rdma.c) (bnc#1075621). - CVE-2018-5333: In the Linux kernel rds_cmsg_atomic function in net/rds/rdma.c mishandled cases where page pinning fails or an invalid address is supplied, leading to an rds_atomic_free_op NULL pointer dereference (bnc#1075617). The following non-security bugs were fixed: - Add proper NX hadnling for !NX-capable systems also to kaiser_add_user_map(). (bsc#1076278). - alsa: aloop: Fix inconsistent format due to incomplete rule (bsc#1045538). - alsa: aloop: Fix racy hw constraints adjustment (bsc#1045538). - alsa: aloop: Release cable upon open error path (bsc#1045538). - alsa: pcm: Abort properly at pending signal in OSS read/write loops (bsc#1045538). - alsa: pcm: Add missing error checks in OSS emulation plugin builder (bsc#1045538). - alsa: pcm: Allow aborting mutex lock at OSS read/write loops (bsc#1045538). - alsa: pcm: Remove incorrect snd_BUG_ON() usages (bsc#1045538). - alsa: pcm: Remove yet superfluous WARN_ON() (bsc#1045538). - btrfs: cleanup unnecessary assignment when cleaning up all the residual transaction (FATE#325056). - btrfs: copy fsid to super_block s_uuid (bsc#1080774). - btrfs: do not wait for all the writers circularly during the transaction commit (FATE#325056). - btrfs: do not WARN() in btrfs_transaction_abort() for IO errors (bsc#1080363). - btrfs: fix two use-after-free bugs with transaction cleanup (FATE#325056). - btrfs: make the state of the transaction more readable (FATE#325056). - btrfs: qgroup: exit the rescan worker during umount (bsc#1080685). - btrfs: qgroup: Fix dead judgement on qgroup_rescan_leaf() return value (bsc#1080685). - btrfs: reset intwrite on transaction abort (FATE#325056). - btrfs: set qgroup_ulist to be null after calling ulist_free() (bsc#1080359). - btrfs: stop waiting on current trans if we aborted (FATE#325056). - cdc-acm: apply quirk for card reader (bsc#1060279). - cdrom: factor out common open_for_* code (bsc#1048585). - cdrom: wait for tray to close (bsc#1048585). - delay: add poll_event_interruptible (bsc#1048585). - dm flakey: add corrupt_bio_byte feature (bsc#1080372). - dm flakey: add drop_writes (bsc#1080372). - dm flakey: error READ bios during the down_interval (bsc#1080372). - dm flakey: fix crash on read when corrupt_bio_byte not set (bsc#1080372). - dm flakey: fix reads to be issued if drop_writes configured (bsc#1080372). - dm flakey: introduce "error_writes" feature (bsc#1080372). - dm flakey: support feature args (bsc#1080372). - dm flakey: use dm_target_offset and support discards (bsc#1080372). - ext2: free memory allocated and forget buffer head when io error happens (bnc#1069508). - ext2: use unlikely to improve the efficiency of the kernel (bnc#1069508). - ext3: add necessary check in case IO error happens (bnc#1069508). - ext3: use unlikely to improve the efficiency of the kernel (bnc#1069508). - fork: clear thread stack upon allocation (bsc#1077560). - kabi/severities ignore Cell-specific symbols - kaiser: do not clobber ZF by calling ENABLE_IBRS after test and before jz - kaiser: fix ia32 compat sysexit (bsc#1080579) sysexit_from_sys_call cannot make assumption of accessible stack after CR3 switch, and therefore should use the SWITCH_USER_CR3_NO_STACK method to flip the pagetable hierarchy. - kaiser: Fix trampoline stack loading issue on XEN PV - kaiser: handle non-accessible stack in sysretl_from_sys_call properly (bsc#bsc#1080579) - kaiser: make sure not to touch stack after CR3 switch in compat syscall return - kaiser: really do switch away from trampoline stack to kernel stack in ia32_syscall entry (bsc#1080579) - kbuild: modversions for EXPORT_SYMBOL() for asm (bsc#1074621 bsc#1068032). - keys: trusted: fix writing past end of buffer in trusted_read() (bsc#1074880). - media: omap_vout: Fix a possible null pointer dereference in omap_vout_open() (bsc#1050431). - mISDN: fix a loop count (bsc#1077191). - mm: pin address_space before dereferencing it while isolating an LRU page (bnc#1081500). - nfsd: do not share group_info among threads (bsc@1070623). - ocfs2: avoid blocking in ocfs2_mark_lockres_freeing() in downconvert thread (bsc#1076437). - ocfs2: do not set OCFS2_LOCK_UPCONVERT_FINISHING if nonblocking lock can not be granted at once (bsc#1076437). - ocfs2: NFS hangs in __ocfs2_cluster_lock due to race with ocfs2_unblock_lock (bsc#962257). - powerpc/64: Add macros for annotating the destination of rfid/hrfid (bsc#1068032, bsc#1075088). - powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL (bsc#1068032, bsc#1075088). - powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL (bsc#1068032, bsc#1075088). - powerpc/64s: Add EX_SIZE definition for paca exception save areas (bsc#1068032, bsc#1075088). - powerpc/64s: Add support for RFI flush of L1-D cache (bsc#1068032, bsc#1075088). - powerpc/64s: Allow control of RFI flush via debugfs (bsc#1068032, bsc#1075088). - powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL (bsc#1068032, bsc#1075088). - powerpc/64s: Simple RFI macro conversions (bsc#1068032, bsc#1075088). - powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti (bsc#1068032, bsc#1075088). - powerpc/64s: Wire up cpu_show_meltdown() (bsc#1068032). - powerpc/asm: Allow including ppc_asm.h in asm files (bsc#1068032, bsc#1075088). - powerpc: Fix register clobbering when accumulating stolen time (bsc#1059174). - powerpc: Fix up the kdump base cap to 128M (bsc#1079917, bsc#1077487). - powerpc: Mark CONFIG_PPC_DEBUG_RFI as BROKEN (bsc#1075088). - powerpc/perf: Dereference BHRB entries safely (bsc#1064861, FATE#317619, git-fixes). - powerpc/perf: Fix book3s kernel to userspace backtraces (bsc#1080133). - powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper (bsc#1068032, bsc#1075088). - powerpc/pseries: include linux/types.h in asm/hvcall.h (bsc#1068032, bsc#1075088). - powerpc/pseries: Introduce H_GET_CPU_CHARACTERISTICS (bsc#1068032, bsc#1075088). - powerpc/pseries: Kill all prefetch streams on context switch (bsc#1068032, bsc#1075088). - powerpc/pseries: Query hypervisor for RFI flush settings (bsc#1068032, bsc#1075088). - powerpc/pseries: rfi-flush: Call setup_rfi_flush() after LPM migration (bsc#1068032, bsc#1075088). - powerpc/pseries/rfi-flush: Call setup_rfi_flush() after LPM migration (bsc#1075088). - powerpc/pseries/rfi-flush: Drop PVR-based selection (bsc#1075088). - powerpc/rfi-flush: Add DEBUG_RFI config option (bsc#1068032, bsc#1075088). - powerpc/rfi-flush: Factor out init_fallback_flush() (bsc#1075088). - powerpc/rfi-flush: Make setup_rfi_flush() not __init (bsc#1075088). - powerpc/rfi-flush: Move RFI flush fields out of the paca (unbreak kABI) (bsc#1068032, bsc#1075088). - powerpc/rfi-flush: Move the logic to avoid a redo into the sysfs code (bsc#1068032, bsc#1075088). - powerpc/rfi-flush: Move the logic to avoid a redo into the sysfs code (bsc#1075088). - powerpc/vdso64: Use double word compare on pointers (bsc#1070781). - rfi-flush: Make DEBUG_RFI a CONFIG option (bsc#1068032, bsc#1075088). - rfi-flush: Move rfi_flush_fallback_area to end of paca (bsc#1075088). - rfi-flush: Move RFI flush fields out of the paca (unbreak kABI) (bsc#1075088). - rfi-flush: Switch to new linear fallback flush (bsc#1068032, bsc#1075088). - s390: add ppa to the idle loop (bnc#1077406, LTC#163910). - s390/cpuinfo: show facilities as reported by stfle (bnc#1076849, LTC#163741). - scsi: libiscsi: fix shifting of DID_REQUEUE host byte (bsc#1078875). - scsi: sr: wait for the medium to become ready (bsc#1048585). - scsi: virtio_scsi: let host do exception handling (bsc#936530,bsc#1060682). - storvsc: do not assume SG list is continuous when doing bounce buffers (bsc#1075410). - sysfs/cpu: Add vulnerability folder (bnc#1012382). - sysfs/cpu: Fix typos in vulnerability documentation (bnc#1012382). - sysfs: spectre_v2, handle spec_ctrl (bsc#1075994 bsc#1075091). - Update config files: enable CPU vulnerabilities reporting via sysfs - x86/acpi: Handle SCI interrupts above legacy space gracefully (bsc#1068984). - x86/acpi: Reduce code duplication in mp_override_legacy_irq() (bsc#1068984). - x86/boot: Fix early command-line parsing when matching at end (bsc#1068032). - x86/cpu: Factor out application of forced CPU caps (bsc#1075994 bsc#1075091). - x86/cpu: Implement CPU vulnerabilites sysfs functions (bnc#1012382). - x86/CPU: Sync CPU feature flags late (bsc#1075994 bsc#1075091). - x86/kaiser: Populate shadow PGD with NX bit only if supported by platform (bsc#1076154 bsc#1076278). - x86/kaiser: use trampoline stack for kernel entry. - x86/microcode/intel: Extend BDW late-loading further with LLC size check (bsc#1054305). - x86/microcode/intel: Extend BDW late-loading with a revision check (bsc#1054305). - x86/microcode: Rescan feature flags upon late loading (bsc#1075994 bsc#1075091). - x86/retpolines/spec_ctrl: disable IBRS on !SKL if retpolines are active (bsc#1068032). - x86/spec_ctrl: handle late setting of X86_FEATURE_SPEC_CTRL properly (bsc#1075994 bsc#1075091). - x86/spectre_v2: fix ordering in IBRS initialization (bsc#1075994 bsc#1075091). - x86/spectre_v2: nospectre_v2 means nospec too (bsc#1075994 bsc#1075091). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Real Time Extension 11-SP4: zypper in -t patch slertesp4-kernel-rt-20180209-13539=1 - SUSE Linux Enterprise Debuginfo 11-SP4: zypper in -t patch dbgsp4-kernel-rt-20180209-13539=1 Package List: - SUSE Linux Enterprise Real Time Extension 11-SP4 (x86_64): kernel-rt-3.0.101.rt130-69.21.1 kernel-rt-base-3.0.101.rt130-69.21.1 kernel-rt-devel-3.0.101.rt130-69.21.1 kernel-rt_trace-3.0.101.rt130-69.21.1 kernel-rt_trace-base-3.0.101.rt130-69.21.1 kernel-rt_trace-devel-3.0.101.rt130-69.21.1 kernel-source-rt-3.0.101.rt130-69.21.1 kernel-syms-rt-3.0.101.rt130-69.21.1 - SUSE Linux Enterprise Debuginfo 11-SP4 (x86_64): kernel-rt-debuginfo-3.0.101.rt130-69.21.1 kernel-rt-debugsource-3.0.101.rt130-69.21.1 kernel-rt_debug-debuginfo-3.0.101.rt130-69.21.1 kernel-rt_debug-debugsource-3.0.101.rt130-69.21.1 kernel-rt_trace-debuginfo-3.0.101.rt130-69.21.1 kernel-rt_trace-debugsource-3.0.101.rt130-69.21.1 References: https://www.suse.com/security/cve/CVE-2015-1142857.html https://www.suse.com/security/cve/CVE-2017-13215.html https://www.suse.com/security/cve/CVE-2017-17741.html https://www.suse.com/security/cve/CVE-2017-18017.html https://www.suse.com/security/cve/CVE-2017-18079.html https://www.suse.com/security/cve/CVE-2017-5715.html https://www.suse.com/security/cve/CVE-2018-1000004.html https://www.suse.com/security/cve/CVE-2018-5332.html https://www.suse.com/security/cve/CVE-2018-5333.html https://bugzilla.suse.com/1012382 https://bugzilla.suse.com/1045538 https://bugzilla.suse.com/1048585 https://bugzilla.suse.com/1049128 https://bugzilla.suse.com/1050431 https://bugzilla.suse.com/1054305 https://bugzilla.suse.com/1059174 https://bugzilla.suse.com/1060279 https://bugzilla.suse.com/1060682 https://bugzilla.suse.com/1063544 https://bugzilla.suse.com/1064861 https://bugzilla.suse.com/1068032 https://bugzilla.suse.com/1068984 https://bugzilla.suse.com/1069508 https://bugzilla.suse.com/1070623 https://bugzilla.suse.com/1070781 https://bugzilla.suse.com/1073311 https://bugzilla.suse.com/1074488 https://bugzilla.suse.com/1074621 https://bugzilla.suse.com/1074880 https://bugzilla.suse.com/1075088 https://bugzilla.suse.com/1075091 https://bugzilla.suse.com/1075410 https://bugzilla.suse.com/1075617 https://bugzilla.suse.com/1075621 https://bugzilla.suse.com/1075908 https://bugzilla.suse.com/1075994 https://bugzilla.suse.com/1076017 https://bugzilla.suse.com/1076154 https://bugzilla.suse.com/1076278 https://bugzilla.suse.com/1076437 https://bugzilla.suse.com/1076849 https://bugzilla.suse.com/1077191 https://bugzilla.suse.com/1077355 https://bugzilla.suse.com/1077406 https://bugzilla.suse.com/1077487 https://bugzilla.suse.com/1077560 https://bugzilla.suse.com/1077922 https://bugzilla.suse.com/1078875 https://bugzilla.suse.com/1079917 https://bugzilla.suse.com/1080133 https://bugzilla.suse.com/1080359 https://bugzilla.suse.com/1080363 https://bugzilla.suse.com/1080372 https://bugzilla.suse.com/1080579 https://bugzilla.suse.com/1080685 https://bugzilla.suse.com/1080774 https://bugzilla.suse.com/1081500 https://bugzilla.suse.com/936530 https://bugzilla.suse.com/962257 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security-announce+help@opensuse.org