SUSE-SU-2018:3088-1

The SUSE Linux Enterprise 11 SP4 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-14634: Prevent integer overflow in createelftables that allowed a local attacker to exploit this vulnerability via a SUID-root binary and obtain full root privileges (bsc#1108912)
• CVE-2018-14617: Prevent NULL pointer dereference and panic in hfsplus_lookup() when opening a file (that is purportedly a hard link) in an hfs+ filesystem that has malformed catalog data, and is mounted read-only without a metadata directory (bsc#1102870)
• CVE-2018-16276: Incorrect bounds checking in the yurex USB driver in yurex_read allowed local attackers to use user access read/writes to crash the kernel or potentially escalate privileges (bsc#1106095)
• CVE-2018-12896: Prevent integer overflow in the POSIX timer code that was caused by the way the overrun accounting works. Depending on interval and expiry time values, the overrun can be larger than INTMAX, but the accounting is int based. This basically made the accounting values, which are visible to user space via timergetoverrun(2) and siginfo::sioverrun, random. This allowed a local user to cause a denial of service (signed integer overflow) via crafted mmap, futex, timercreate, and timer_settime system calls (bnc#1099922)
• CVE-2018-10940: The cdromioctlmediachanged function allowed local attackers to use a incorrect bounds check in the CDROM driver CDROMMEDIA_CHANGED ioctl to read out kernel memory (bsc#1092903)
• CVE-2018-16658: Prevent information leak in cdromioctldrive_status that could have been used by local attackers to read kernel memory (bnc#1107689)
• CVE-2018-6555: The irdasetsockopt function allowed local users to cause a denial of service (iasobject use-after-free and system crash) or possibly have unspecified other impact via an AF_IRDA socket (bnc#1106511)
• CVE-2018-6554: Prevent memory leak in the irdabind function that allowed local users to cause a denial of service (memory consumption) by repeatedly binding an AFIRDA socket (bnc#1106509)
• CVE-2018-15594: Ensure correct handling of indirect calls, to prevent attackers for conducting Spectre-v2 attacks against paravirtual guests (bsc#1105348)
• CVE-2018-15572: The spectrev2select_mitigation function did not always fill RSB upon a context switch, which made it easier for attackers to conduct userspace-userspace spectreRSB attacks (bnc#1102517)
• CVE-2018-10902: Protect against concurrent access to prevent double realloc (double free) in sndrawmidiinputparams() and sndrawmidioutputstatus(). A malicious local attacker could have used this for privilege escalation (bnc#1105322).
• CVE-2018-14734: ucmaleavemulticast accessed a certain data structure after a cleanup step in ucmaprocessjoin, which allowed attackers to cause a denial of service (use-after-free) (bsc#1103119)

The following non-security bugs were fixed:

• ACPI: APEI / ERST: Fix missing error handling in erst_reader() (bsc#1045538).
• ALSA: fm801: propagate TUNER_ONLY bit when autodetected (bsc#1045538).
• ALSA: pcm: Fix sndpcmhw_params struct copy in compat mode (bsc#1045538).
• ALSA: pcm: Use dmabytes as size parameter in dmammap_coherent() (bsc#1045538).
• ALSA: pcm: fix fifo_size frame calculation (bsc#1045538).
• ALSA: snd-aoa: add ofnodeput() in error path (bsc#1045538).
• ALSA: usb-audio: Add sanity checks in v2 clock parsers (bsc#1045538).
• ALSA: usb-audio: Add sanity checks to FE parser (bsc#1045538).
• ALSA: usb-audio: Fix UAC2 get_ctl request with a RANGE attribute (bsc#1045538).
• ALSA: usb-audio: Fix bogus error return in sndusbcreate_stream() (bsc#1045538).
• ALSA: usb-audio: Fix parameter block size for UAC2 control requests (bsc#1045538).
• ALSA: usb-audio: Fix parsing descriptor of UAC2 processing unit (bsc#1045538).
• ALSA: usb-audio: Fix potential out-of-bound access at parsing SU (bsc#1045538).
• ALSA: usb-audio: Set correct type for some UAC2 mixer controls (bsc#1045538).
• ASoC: blackfin: Fix missing break (bsc#1045538).
• Enforce module signatures if the kernel is locked down (bsc#1093666).
• KVM: VMX: Work around kABI breakage in 'enum vmxl1dflush_state' (bsc#1106369).
• KVM: VMX: fixes for vmentryl1dflush module parameter (bsc#1106369).
• PCI: Fix TI816X class code quirk (bsc#1050431).
• Refresh patches.xen/xen3-x86-l1tf-04-protect-PROT_NONE-ptes.patch (bsc#1105100).
• TPM: Zero buffer whole after copying to userspace (bsc#1050381).
• USB: serial: io_ti: fix NULL-deref in interrupt callback (bsc#1106609).
• USB: serial: sierra: fix potential deadlock at close (bsc#1100132).
• applicom: dereferencing NULL on error path (git-fixes).
• ath5k: Change led pin configuration for compaq c700 laptop (bsc#1048185).
• base: make modulecreatedrivers_dir race-free (git-fixes).
• block: fix an error code in add_partition() (bsc#1106209).
• btrfs: scrub: Do not use inode page cache in scrubhandleerrored_block() (bsc#1108096).
• btrfs: scrub: Do not use inode pages for device replace (bsc#1107949).
• dasd: Add IFCC notice message (bnc#1104481, LTC#170484).
• drm/i915: Remove bogus __init annotation from DMI callbacks (bsc#1106886).
• drm/nouveau/gem: off by one bugs in nouveaugempushbufrelocapply() (bsc#1106886).
• drm/vmwgfx: Handle vmalloc() failure in vmwlocalfifo_reserve() (bsc#1106886).
• drm: crtc: integer overflow in drmpropertycreate_blob() (bsc#1106886).
• fbdev: omapfb: off by one in omapfbregisterclient() (bsc#1106886).
• iommu/amd: Finish TLB flush in amdiommuunmap() (bsc#1106105).
• iommu/amd: Fix the left value check of cmd buffer (bsc#1106105).
• iommu/amd: Free domain id when free a domain of struct dmaopsdomain (bsc#1106105).
• iommu/amd: Update Alias-DTE in updatedevicetable() (bsc#1106105).
• iommu/vt-d: Do not over-free page table directories (bsc#1106105).
• iommu/vt-d: Ratelimit each dmar fault printing (bsc#1106105).
• ipv6: Regenerate host route according to node pointer upon loopback up (bsc#1100705).
• ipv6: correctly add local routes when lo goes up (bsc#1100705).
• ipv6: introduce ip6rtput() (bsc#1100705).
• ipv6: reallocate addrconf router for ipv6 address when lo device up (bsc#1100705).
• kabi: x86/speculation/l1tf: Increase l1tf memory limit for Nehalem+ (bnc#1105536).
• mm/hugetlb: add migration/hwpoisoned entry check in hugetlbchangeprotection (bnc#1107071).
• mm/mempolicy.c: avoid use uninitialized preferred_node (bnc#1107064).
• modsign: log module name in the event of an error (bsc#1093666).
• modsign: print module name along with error message (bsc#1093666).
• module: make it clear when we're handling the module copy in info->hdr (bsc#1093666).
• module: setup load info before modulesigcheck() (bsc#1093666).
• nbd: ratelimit error msgs after socket close (bsc#1106206).
• ncpfs: return proper error from NCPIOCSETROOT ioctl (bsc#1106199).
• perf/x86/intel: Add cpu(prepare|starting|dying) for corepmu (bsc#1104901).
• powerpc/64s: Default l1d_size to 64K in RFI fallback flush (bsc#1068032, git-fixes).
• powerpc/fadump: Do not use hugepages when fadump is active (bsc#1092772, bsc#1107650).
• powerpc/fadump: exclude memory holes while reserving memory in second kernel (bsc#1092772, bsc#1107650).
• powerpc/fadump: re-register firmware-assisted dump if already registered (bsc#1108170, bsc#1108823).
• powerpc/lib: Fix off-by-one in alternate feature patching (bsc#1064861).
• powerpc/lib: Fix the feature fixup tests to actually work (bsc#1064861).
• powerpc64s: Show ori31 availability in spectre_v1 sysfs file not v2 (bsc#1068032, bsc#1080157, git-fixes).
• powerpc: Avoid code patching freed init sections (bnc#1107735).
• powerpc: make feature-fixup tests fortify-safe (bsc#1064861).
• ptrace: fix PTRACE_LISTEN race corrupting task->state (bnc#1107001).
• qlge: Fix netdev features configuration (bsc#1098822).
• resource: fix integer overflow at reallocation (bsc#1045538).
• rpm/kernel-docs.spec.in: Expand kernel tree directly from sources (bsc#1057199)
• s390/ftrace: use expoline for indirect branches (bnc#1106930, LTC#171029).
• s390/kernel: use expoline for indirect branches (bnc#1106930, LTC#171029).
• s390/qeth: do not clobber buffer on async TX completion (bnc#1060245, LTC#170349).
• s390: Correct register corruption in critical section cleanup (bnc#1106930, LTC#171029).
• s390: add assembler macros for CPU alternatives (bnc#1106930, LTC#171029).
• s390: detect etoken facility (bnc#1106930, LTC#171029).
• s390: move expoline assembler macros to a header (bnc#1106930, LTC#171029).
• s390: move spectre sysfs attribute code (bnc#1106930, LTC#171029).
• s390: remove indirect branch from dosoftirqown_stack (bnc#1106930, LTC#171029).
• sys: do not hold uts_sem while accessing userspace memory (bnc#1106995).
• tpm: fix race condition in tpmcommonwrite() (bsc#1050381).
• tracing/blktrace: Fix to allow setting same value (bsc#1106212).
• tty: vt, fix bogus division in csi_J (git-fixes).
• tty: vt, return error when con_startup fails (git-fixes).
• uml: fix hostfs mknod() (bsc#1106202).
• usb: audio-v2: Correct the comment for struct uacclockselector_descriptor (bsc#1045538).
• usbip: vhci_sysfs: fix potential Spectre v1 (bsc#1096547).
• x86, l1tf: Protect PROT_NONE PTEs against speculation fixup (bnc#1104684, bnc#1104818).
• x86/speculation/l1tf: Fix overflow in l1tfpfnlimit() on 32bit (bnc#1087081).
• x86/init: fix build with CONFIG_SWAP=n (bsc#1105723).
• x86/mm: Prevent kernel Oops in PTDUMP code with HIGHPTE=y (bsc#1106105).
• x86/speculation/l1tf: Fix off-by-one error when warning that system has too much RAM (bnc#1105536).
• x86/speculation/l1tf: Increase l1tf memory limit for Nehalem+ (bnc#1105536).
• x86/speculation/l1tf: Suggest what to do on systems with too much RAM (bnc#1105536).
• x86/vdso: Fix vDSO build if a retpoline is emitted (git-fixes).
• xen x86/speculation/l1tf: Fix off-by-one error when warning that system has too much RAM (bnc#1105536).
• xen x86/speculation/l1tf: Increase l1tf memory limit for Nehalem+ (bnc#1105536).
• xen, x86, l1tf: Protect PROT_NONE PTEs against speculation fixup (bnc#1104684, bnc#1104818).
• xen: x86/speculation/l1tf: Fix overflow in l1tfpfnlimit() on 32bit (bnc#1087081).