SUSE-SU-2016:2912-1

The SUSE Linux Enterprise 12 kernel was updated to 3.12.67 to receive various security and bugfixes.

The following security bugs were fixed: - CVE-2016-7042: The prockeysshow function in security/keys/proc.c in the Linux kernel used an incorrect buffer size for certain timeout data, which allowed local users to cause a denial of service (stack memory corruption and panic) by reading the /proc/keys file (bsc#1004517). - CVE-2016-7097: The filesystem implementation in the Linux kernel preserved the setgid bit during a setxattr call, which allowed local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions (bsc#995968). - CVE-2015-8956: The rfcommsockbind function in net/bluetooth/rfcomm/sock.c in the Linux kernel allowed local users to obtain sensitive information or cause a denial of service (NULL pointer dereference) via vectors involving a bind system call on a Bluetooth RFCOMM socket (bnc#1003925). - CVE-2016-5696: net/ipv4/tcpinput.c in the Linux kernel did not properly determine the rate of challenge ACK segments, which made it easier for man-in-the-middle attackers to hijack TCP sessions via a blind in-window attack (bnc#989152). - CVE-2016-6130: Race condition in the sclpctlioctlsccb function in drivers/s390/char/sclpctl.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory by changing a certain length value, aka a 'double fetch' vulnerability (bnc#987542). - CVE-2016-6327: drivers/infiniband/ulp/srpt/ibsrpt.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and system crash) by using an ABORTTASK command to abort a device write operation (bnc#994748). - CVE-2016-6480: Race condition in the ioctlsendfib function in drivers/scsi/aacraid/commctrl.c in the Linux kernel allowed local users to cause a denial of service (out-of-bounds access or system crash) by changing a certain size value, aka a 'double fetch' vulnerability (bnc#991608). - CVE-2016-6828: The tcpchecksendhead function in include/net/tcp.h in the Linux kernel did not properly maintain certain SACK state after a failed data copy, which allowed local users to cause a denial of service (tcpxmitretransmitqueue use-after-free and system crash) via a crafted SACK option (bnc#994296). - CVE-2016-7425: The arcmsriopmessagexfer function in drivers/scsi/arcmsr/arcmsrhba.c in the Linux kernel did not restrict a certain length field, which allowed local users to gain privileges or cause a denial of service (heap-based buffer overflow) via an ARCMSRMESSAGEWRITEWQBUFFER control code (bnc#999932). - CVE-2016-8658: Stack-based buffer overflow in the brcmfcfg80211start_ap function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel allowed local users to cause a denial of service (system crash) or possibly have unspecified other impact via a long SSID Information Element in a command to a Netlink socket (bnc#1004462). - CVE-2016-8666: The IP stack in the Linux kernel allowed remote attackers to cause a denial of service (stack consumption and panic) or possibly have unspecified other impact by triggering use of the GRO path for packets with tunnel stacking, as demonstrated by interleaved IPv4 headers and GRE headers, a related issue to CVE-2016-7039 (bsc#1001486).

The following non-security bugs were fixed:

• aacraid: Fix RRQ overload (bsc#1003079).
• acpi / PM: Ignore wakeup setting if the ACPI companion can't wake up (FATE#315621).
• AFVSOCK: Shrink the area influenced by prepareto_wait (bsc#994520).
• apparmor: add missing id bounds check on dfa verification (bsc#1000304).
• apparmor: check that xindex is in trans_table bounds (bsc#1000304).
• apparmor: do not expose kernel stack (bsc#1000304).
• apparmor: don't check for vmalloc_addr if kvzalloc() failed (bsc#1000304).
• apparmor: ensure the target profile name is always audited (bsc#1000304).
• apparmor: exec should not be returning ENOENT when it denies (bsc#1000304).
• apparmor: fix arg_size computation for when setprocattr is null terminated (bsc#1000304).
• apparmor: fix audit full profile hname on successful load (bsc#1000304).
• apparmor: fix change_hat not finding hat after policy replacement (bsc#1000287).
• apparmor: fix disconnected bind mnts reconnection (bsc#1000304).
• apparmor: fix log failures for all profiles in a set (bsc#1000304).
• apparmor: fix module parameters can be changed after policy is locked (bsc#1000304).
• apparmor: fix oops in profileunpack() when policydb is not present (bsc#1000304).
• apparmor: fix oops, validate buffer size in apparmor_setprocattr() (bsc#1000304).
• apparmor: fix put() parent ref after updating the active ref (bsc#1000304).
• apparmor: fix refcount bug in profile replacement (bsc#1000304).
• apparmor: fix refcount race when finding a child profile (bsc#1000304).
• apparmor: fix replacement bug that adds new child to old parent (bsc#1000304).
• apparmor: fix uninitialized lsm_audit member (bsc#1000304).
• apparmor: fix update the mtime of the profile file on replacement (bsc#1000304).
• apparmor: internal paths should be treated as disconnected (bsc#1000304).
• apparmor: use listnextentry instead of listentrynext (bsc#1000304).
• arm64: Ensure pmdpresent() returns false after pmdmknotpresent() (Automatic NUMA Balancing (fate#315482)).
• arm64: mm: remove broken &= operator from pmd_mknotpresent (Automatic NUMA Balancing (fate#315482)).
• avoid dentry crash triggered by NFS (bsc#984194).
• be2net: Don't leak iomapped memory on removal (bsc#921784).
• be2net: fix BE3-R FW download compatibility check (bsc#921784).
• be2net: fix wrong return value in becheckufi_compatibility() (bsc#921784).
• be2net: remove vlan promisc capability from VF's profile descriptors (bsc#921784).
• blkfront: fix an error path memory leak (luckily none so far).
• blk-mq: fix undefined behaviour in ordertosize() (fate#315209).
• blktap2: eliminate deadlock potential from shutdown path (bsc#909994).
• blktap2: eliminate race from deferred work queue handling (bsc#911687).
• bond: Check length of IFLABONDARPIPTARGET attributes (fate#316924).
• bonding: always set recvprobe to bondarp_rcv in arp monitor (bsc#977687).
• bonding: fix curractiveslave/carrier with loadbalance arp monitoring (fate#316924).
• bonding: Prevent IPv6 link local address on enslaved devices (fate#316924).
• bonding: prevent out of bound accesses (fate#316924).
• bonding: set carrier off for devices created through netlink (bsc#999577).
• btrfs: account for non-CoW'd blocks in btrfsaborttransaction (bsc#983619).
• btrfs: add missing discards when unpinning extents with -o discard (bsc#904489).
• btrfs: btrfsissuediscard ensure offset/length are aligned to sector boundaries (bsc#904489).
• btrfs: do not create or leak aliased root while cleaning up orphans (bsc#904489).
• btrfs: ensure that file descriptor used with subvol ioctls is a dir (bsc#999600).
• btrfs: explictly delete unused block groups in close_ctree and ro-remount (bsc#904489).
• btrfs: Fix a data space underflow warning (bsc#985562, bsc#975596, bsc#984779)
• btrfs: fix fitrim discarding device area reserved for boot loader's use (bsc#904489).
• btrfs: handle quota reserve failure properly (bsc#1005666).
• btrfs: iterate over unused chunk space in FITRIM (bsc#904489).
• btrfs: make btrfsissuediscard return bytes discarded (bsc#904489).
• btrfs: properly track when rescan worker is running (bsc#989953).
• btrfs: remove unnecessary locking of cleaner_mutex to avoid deadlock (bsc#904489).
• btrfs: reorder patches to place local patches back at the end of the series
• btrfs: skip superblocks during discard (bsc#904489).
• btrfs: testcheckexists: Fix infinite loop when searching for free space entries (bsc#987192).
• btrfs: waiting on qgroup rescan should not always be interruptible (bsc#992712).
• cdc-acm: added sanity checking for probe() (bsc#993891).
• ceph: After a write, we must free the 'request', not the 'response'. This error crept in during the backport. bsc#995153
• cephfs: ignore error from invalidateinodepages2_range() in direct write (bsc#995153).
• cephfs: remove warning when ceph_releasepage() is called on dirty page (bsc#995153).
• clockevents: export clockeventsunbinddevice instead of clockevents_unbind (bnc#937888).
• conntrack: RFC5961 challenge ACK confuse conntrack LAST-ACK transition (bsc#966864).
• cpumask, nodemask: implement cpumask/nodemaskprargs() (bnc1003866).
• cxgbi: fix uninitialized flowi6 (bsc#924384 FATE#318570 bsc#921338).
• dm: fix AB-BA deadlock in _dmdestroy(). (bsc#970943)
• Document the process to blacklist upstream commit-ids
• drivers/hv: share Hyper-V SynIC constants with userspace (bnc#937888).
• drivers: hv: vmbus: avoid scheduling in interrupt context in vmbusinitiateunload() (bnc#937888).
• drivers: hv: vmbus: avoid unneeded compiler optimizations in vmbuswaitfor_unload() (bnc#937888).
• drivers: hv: vmbus: avoid waitforcompletion() on crash (bnc#937888).
• drivers: hv: vmbus: Cleanup vmbussetevent() (bnc#937888).
• drivers: hv: vmbus: do not loose HVMSGTIMEREXPIRED messages (bnc#937888).
• drivers: hv: vmbus: do not manipulate with clocksources on crash (bnc#937888).
• drivers: hv: vmbus: Force all channel messages to be delivered on CPU 0 (bnc#937888).
• drivers: hv: vmbus: Get rid of the unused irq variable (bnc#937888).
• drivers: hv: vmbus: handle various crash scenarios (bnc#937888).
• drivers: hv: vmbus: remove code duplication in message handling (bnc#937888).
• drivers: hv: vmbus: Support handling messages on multiple CPUs (bnc#937888).
• drivers: hv: vmbus: Support kexec on ws2012 r2 and above (bnc#937888).
• efi: Small leak on error in runtime map code (fate#315019).
• ext2: Enable ext2 driver in config files (bsc#976195, fate#320805)
• ext4: Add parameter for tuning handling of ext2 (bsc#976195).
• ext4: Fixup handling for custom configs.
• fs/select: add vmalloc fallback for select(2) (bsc#1000189).
• ftrace/x86: Set ftrace_stub to weak to prevent gcc from using short jumps to it (bsc#984419).
• hyperv: enable call to clockeventsunbinddevice in kexec/kdump path
• hyperv: replace KEXEC_CORE by plain KEXEC because we lack 2965faa5e0 in the base kernel
• i40e: fix an uninitialized variable bug (bnc#857397 FATE#315659).
• ib/iwpm: Fix a potential skb leak (bsc#924381 FATE#318568 bsc#921338).
• ib/mlx5: Fix RC transport send queue overhead computation (bnc#865545 FATE#316891).
• input: Revert 'can: dev: fix deadlock reported after bus-off'.
• input: Revert 'Input: i8042 - break load dependency between atkbd/psmouse and i8042'.
• input: Revert 'Input: i8042 - set up shared ps2cmdmutex for AUX ports'.
• introduce NETIFFGSOENCAPALL helper mask (bsc#1001486).
• iommu/amd: Update Alias-DTE in updatedevicetable() (bsc#975772).
• ipv6: Fix improper use or RCU (bsc#961257)
• ipv6: fix multipath route replace error recovery (bsc#930399).
• ipv6: KABI workaround for ipv6: add complete rcu protection around np->opt.
• ipv6: send NEWLINK on RA managed/otherconf changes (bsc#934067).
• ipv6: send only one NEWLINK when RA causes changes (bsc#934067).
• iscsi: Add a missed complete in iscsitcloseconnection (bsc#992555, bsc#987805).
• iwlwifi: dvm: fix flush support for old firmware (bsc#940545).
• kabi: clockevents: export clockevents_unbind again.
• kabi: Fix kabi change cause by adding flockowner to opencontext (bsc#998689).
• kabi: hide harmless change in struct inetconnectionsock (fate#318553).
• kABI: protect backing-dev include in mm/migrate.
• kABI: protect enum usbdevicespeed.
• kABI: protect struct mlx5modifyqpmboxin.
• kabi: work around kabi changes from commit 53f9ff48f636 (bsc#988617).
• kaweth: fix firmware download (bsc#993890).
• kaweth: fix oops upon failed memory allocation (bsc#993890).
• kernel/fork: fix CLONECHILDCLEARTID regression in nscd (bnc#941420).
• kernel/printk/printk.c: fix faulty logic in the case of recursive printk (bnc#744692, bnc#789311).
• kvm: do not handle APIC access page if in-kernel irqchip is not in use (bsc#959463).
• Kvm: vmx: defer load of APIC access page address during reset (bsc#959463).
• libceph: enable large, variable-sized OSD requests (bsc#988715).
• libceph: make rrequest msgsize calculation clearer (bsc#988715).
• libceph: move rreplyop{len,result} into struct cephosdreqop (bsc#988715).
• libceph: osdc->req_mempool should be backed by a slab pool (bsc#988715).
• libceph: rename cephosdreqop::payloadlen to indata_len (bsc#988715).
• libfc: do not send ABTS when resetting exchanges (bsc#962846).
• libfc: Do not take rdata->rpmutex when processing a -FCEX_CLOSED ELS response (bsc#962846).
• libfc: Fixup disc_mutex handling (bsc#962846).
• libfc: fixup locking of ptp_setup() (bsc#962846).
• libfc: Issue PRLI after a PRLO has been received (bsc#962846).
• libfc: reset exchange manager during LOGO handling (bsc#962846).
• libfc: Revisit kref handling (bnc#990245).
• libfc: sanity check cpu number extracted from xid (bsc#988440).
• libfc: send LOGO for PLOGI failure (bsc#962846).
• lib/vsprintf: implement bitmap printing through '%*pb[l]' (bnc#1003866).
• md: check command validity early in md_ioctl() (bsc#1004520).
• md: Drop sending a change uevent when stopping (bsc#1003568).
• md: lockless I/O submission for RAID1 (bsc#982783).
• md/raid5: fix a recently broken BUG_ON() (bsc#1006691).
• memcg: convert threshold to bytes (bnc#931454).
• memcg: fix thresholds for 32b architectures (bnc#931454).
• mm, cma: prevent nrisolated* counters from going negative (bnc#971975 VM performance -- git fixes).
• mm: thp: fix SMP race condition between THP page fault and MADV_DONTNEED (VM Functionality, bnc#986445).
• module: Issue warnings when tainting kernel (bsc#974406).
• mpt2sas, mpt3sas: Fix panic when aer correct error occurred (bsc#997708).
• MSI-X: fix an error path (luckily none so far).
• netback: fix flipping mode (bsc#996664).
• netback: fix refounting (bsc#978094).
• netfront: don't truncate grant references.
• netfront: use correct linear area after linearizing an skb (bsc#1007886).
• nfs4: reset states to use open_stateid when returning delegation voluntarily (bsc#1003400).
• nfs: Add a stub for GETDEVICELIST (bnc#898675).
• nfs: Do not write enable new pages while an invalidation is proceeding (bsc#999584).
• nfsd: Use free_conn to free connection (bsc#979451).
• nfs: Fix an LOCK/OPEN race when unlinking an open file (bsc#956514).
• nfs: Fix a regression in the read() syscall (bsc#999584).
• nfs: fix BUG() crash in notifychange() with patch to chowncommon() (bnc#876463).
• nfs: fix pg_test page count calculation (bnc#898675).
• nfs: nfs4flprepare_ds must be careful about reporting success (bsc#1000776).
• nfsv4: add flock_owner to open context (bnc#998689).
• nfsv4: change nfs4dosetattr to take an opencontext instead of a nfs4state (bnc#998689).
• nfsv4: change nfs4selectrwstateid to take a lockcontext inplace of lock_owner (bnc#998689).
• nfsv4: enhance nfs4copylock_stateid to use a flock stateid if there is one (bnc#998689).
• nfsv4: Ensure nfsatomicopen set the dentry verifier on ENOENT (bnc#866130).
• oom: print nodemask in the oom report (bnc#1003866).
• packet: tpacket_snd(): fix signed/unsigned comparison (bsc#874131).
• perf/x86/intel: Fix bug for 'cycles:p' and 'cycles:pp' on SLM (bsc#997896).
• pm / hibernate: Fix 2G size issue of snapshot image verification (bsc#1004252).
• pm / hibernate: Fix rtreenextnode() to avoid walking off list ends (bnc#860441).
• powerpc: add kernel parameter iommuallocquiet (bsc#998825).
• printk: add kernel parameter to control writes to /dev/kmsg (bsc#979928).
• qgroup: Prevent qgroup->reserved from going subzero (bsc#993841).
• qlcnic: potential NULL dereference in qlcnic83xxgetminidumptemplate() (bsc#922064 FATE#318609)
• radeon: avoid boot hang in Xen Dom0 (luckily none so far).
• ratelimit: extend to print suppressed messages on release (bsc#979928).
• ratelimit: fix bug in time interval by resetting right begin time (bsc#979928).
• rbd: truncate objects on cmpext short reads (bsc#988715).
• rpm/config.sh: Set the SP1 release string to 60.<RELEASE> (bsc#997059)
• rpm/mkspec: Read a default release string from rpm/config.sh (bsc997059)
• rtnetlink: avoid 0 sized arrays (fate#316924).
• s390: add SMT support (bnc#994438, LTC#144756).
• sched/core: Fix an SMP ordering race in trytowake_up() vs. schedule() (bnc#1001419).
• sched/core: Fix a race between trytowake_up() and a woken up task (bsc#1002165, bsc#1001419).
• scsi: ibmvfc: add FC Class 3 Error Recovery support (bsc#984992).
• scsi: ibmvfc: Fix I/O hang when port is not mapped (bsc#971989)
• scsi: ibmvfc: Set READ FCPXFERREADY DISABLED bit in PRLI (bsc#984992).
• sd: Fix memory leak caused by RESET_WP patch (bsc#999779).
• squashfs3: properly handle dir_emit() failures (bsc#998795).
• sunrpc: Add missing support for RPCCLNTCREATENORETRANS_TIMEOUT (bnc#868923).
• sunrpc: Fix a regression when reconnecting (bsc#946309).
• supported.conf: Add ext2
• supported.conf: Add iscsi modules to -base (bsc#997299)
• supported.conf: Add tun to -base (bsc#992593)
• supported.conf: Add veth to -base (bsc#992591)
• target: Fix missing complete during ABORTTASK + CMDTFABRICSTOP (bsc#987621).
• target: Fix race between iscsi-target connection shutdown + ABORT_TASK (bsc#987621).
• tcp: add proper TS val into RST packets (bsc#937086).
• tcp: align tcpxmitsizegoal() on tcptso_autosize() (bsc#937086).
• tcp: fix child sockets to use system default congestion control if not set (fate#318553).
• tcp: fix cwnd limited checking to improve congestion control (bsc#988617).
• tcp: refresh skb timestamp at retransmit time (bsc#937086).
• timers: Use proper base migration in addtimeron() (bnc#993392).
• tunnels: Do not apply GRO to multiple layers of encapsulation (bsc#1001486).
• tunnels: Remove encapsulation offloads on decap (bsc#1001486).
• Update patches.drivers/mpt3sas-Fix-use-sasistlr_enabled-API-before-enabli.patch (bsc#967640, bsc#992244).
• Update patches.kabi/kabi.clockevents_unbind.patch (bnc#937888).
• uprobes: Fix the memcg accounting (bnc#931454).
• usb: fix typo in wMaxPacketSize validation (bsc#991665).
• usbhid: add ATEN CS962 to list of quirky devices (bsc#1007615).
• usb: hub: Fix auto-remount of safely removed or ejected USB-3 devices (bsc#922634).
• usb: validate wMaxPacketValue entries in endpoint descriptors (bnc#991665).
• vmxnet3: Wake queue from reset work (bsc#999907).
• x86/tlb/trace: Do not trace on CPU that is offline (TLB Performance git-fixes).
• xenbus: don't invoke ->is_ready() for most device states (bsc#987333).
• xenbus: inspect the correct type in xenbusdevrequestandreply().
• xen: Linux 3.12.63.
• xen/pciback: Fix conf_space read/write overlap check.
• xen-pciback: return proper values during BAR sizing.
• xen: Refresh patches.xen/xen3-patch-3.9 (bsc#991247).
• xen: x86/mm/pat, /dev/mem: Remove superfluous error message (bsc#974620).
• xfs: fixed signedness of error code in xfsinodebuf_verify (bsc#1003153).
• xfs: fix xfs-handle-dquot-buffer-readahead-in-log-recovery-co.patch (bsc#1003153).
• xfs: handle dquot buffer readahead in log recovery correctly (bsc#955446).
• xfs: Silence warnings in xfsvmreleasepage() (bnc#915183 bsc#987565).
• xhci: silence warnings in switch (bnc#991665).