Security update for the Linux Kernel

An update that solves 20 vulnerabilities and has 79 security fixes can now be installed.

Description:

The SUSE Linux Enterprise 11 SP4 kernel was updated to 3.0.101-94 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2017-5551: tmpfs: clear S_ISGID when setting posix ACLs (bsc#1021258).
• CVE-2016-10088: The sg implementation in the Linux kernel did not properly restrict write operations in situations where the KERNEL_DS option is set, which allowed local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device NOTE: this vulnerability existed because of an incomplete fix for CVE-2016-9576 (bnc#1017710).
• CVE-2016-5696: TCP, when using a large Window Size, made it easier for remote attackers to guess sequence numbers and cause a denial of service (connection loss) to persistent TCP connections by repeatedly injecting a TCP RST packet, especially in protocols that use long-lived connections, such as BGP (bnc#989152).
• CVE-2015-1350: The VFS subsystem in the Linux kernel 3.x provided an incomplete set of requirements for setattr operations that underspecified removing extended privilege attributes, which allowed local users to cause a denial of service (capability stripping) via a failed invocation of a system call, as demonstrated by using chown to remove a capability from the ping or Wireshark dumpcap program (bnc#914939).
• CVE-2016-8632: The tipc_msg_build function in net/tipc/msg.c in the Linux kernel did not validate the relationship between the minimum fragment length and the maximum packet size, which allowed local users to gain privileges or cause a denial of service (heap-based buffer overflow) by leveraging the CAP_NET_ADMIN capability (bnc#1008831).
• CVE-2016-8399: An elevation of privilege vulnerability in the kernel networking subsystem could enable a local malicious application to execute arbitrary code within the context of the kernel. This issue is rated as Moderate because it first requires compromising a privileged process and current compiler optimizations restrict access to the vulnerable code. (bnc#1014746).
• CVE-2016-9793: The sock_setsockopt function in net/core/sock.c in the Linux kernel mishandled negative values of sk_sndbuf and sk_rcvbuf, which allowed local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option (bnc#1013531).
• CVE-2012-6704: The sock_setsockopt function in net/core/sock.c in the Linux kernel mishandled negative values of sk_sndbuf and sk_rcvbuf, which allowed local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUF or (2) SO_RCVBUF option (bnc#1013542).
• CVE-2016-9756: arch/x86/kvm/emulate.c in the Linux kernel did not properly initialize Code Segment (CS) in certain error cases, which allowed local users to obtain sensitive information from kernel stack memory via a crafted application (bnc#1013038).
• CVE-2016-9685: Multiple memory leaks in error paths in fs/xfs/xfs_attr_list.c in the Linux kernel allowed local users to cause a denial of service (memory consumption) via crafted XFS filesystem operations (bnc#1012832).
• CVE-2015-8962: Double free vulnerability in the sg_common_write function in drivers/scsi/sg.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (memory corruption and system crash) by detaching a device during an SG_IO ioctl call (bnc#1010501).
• CVE-2016-9555: The sctp_sf_ootb function in net/sctp/sm_statefuns.c in the Linux kernel lacked chunk-length checking for the first chunk, which allowed remote attackers to cause a denial of service (out-of-bounds slab access) or possibly have unspecified other impact via crafted SCTP data (bnc#1011685).
• CVE-2016-7910: Use-after-free vulnerability in the disk_seqf_stop function in block/genhd.c in the Linux kernel allowed local users to gain privileges by leveraging the execution of a certain stop operation even if the corresponding start operation had failed (bnc#1010716).
• CVE-2016-7911: Race condition in the get_task_ioprio function in block/ioprio.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via a crafted ioprio_get system call (bnc#1010711).
• CVE-2013-6368: The KVM subsystem in the Linux kernel allowed local users to gain privileges or cause a denial of service (system crash) via a VAPIC synchronization operation involving a page-end address (bnc#853052).
• CVE-2015-8964: The tty_set_termios_ldisc function in drivers/tty/tty_ldisc.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory by reading a tty data structure (bnc#1010507).
• CVE-2016-7916: Race condition in the environ_read function in fs/proc/base.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file during a process-setup time interval in which environment-variable copying is incomplete (bnc#1010467).
• CVE-2016-8646: The hash_accept function in crypto/algif_hash.c in the Linux kernel allowed local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data (bnc#1010150).
• CVE-2016-8633: drivers/firewire/net.c in the Linux kernel, in certain unusual hardware configurations, allowed remote attackers to execute arbitrary code via crafted fragmented packets (bnc#1008833).

The following non-security bugs were fixed:

• 8250_pci: Fix potential use-after-free in error path (bsc#1013070).
• KABI fix (bsc#1014410).
• apparmor: fix IRQ stack overflow during free_profile (bsc#1009875).
• be2net: Do not leak iomapped memory on removal (bug#925065).
• block_dev: do not test bdev->bd_contains when it is not stable (bsc#1008557).
• bna: Add synchronization for tx ring (bsc#993739).
• bnx2x: Correct ringparam estimate when DOWN (bsc#1020214).
• crypto: add ghash-generic in the supported.conf(bsc#1016824)
• crypto: aesni - Add support for 192 & 256 bit keys to AESNI RFC4106 (bsc#913387).
• dm: do not call dm_sync_table() when creating new devices (bnc#901809).
• drm/mgag200: Added support for the new deviceID for G200eW3 (bnc#1019348)
• ext3: Avoid premature failure of ext3_has_free_blocks() (bsc#1016668).
• ext4: do not leave i_crtime.tv_sec uninitialized (bsc#1013018).
• ext4: fix reference counting bug on block allocation error (bsc#1013018).
• futex: Acknowledge a new waiter in counter before plist (bsc#851603).
• futex: Drop refcount if requeue_pi() acquired the rtmutex (bsc#851603).
• hpilo: Add support for iLO5 (bsc#999101).
• ibmveth: calculate gso_segs for large packets (bsc#1019165).
• ibmveth: set correct gso_size and gso_type (bsc#1019165).
• igb: Enable SR-IOV configuration via PCI sysfs interface (bsc#909491 FATE#317388).
• igb: Fix NULL assignment to incorrect variable in igb_reset_q_vector (bsc#795297 FATE#313656).
• igb: Fix oops caused by missing queue pairing (bsc#909491 FATE#317388).
• igb: Fix oops on changing number of rings (bsc#909491 FATE#317388).
• igb: Remove unnecessary flag setting in igb_set_flag_queue_pairs() (bsc#909491 FATE#317388).
• igb: Unpair the queues when changing the number of queues (bsc#909491 FATE#317388).
• kexec: add a kexec_crash_loaded() function (bsc#973691).
• kvm: APIC: avoid instruction emulation for EOI writes (bsc#989680).
• kvm: Distangle eventfd code from irqchip (bsc#989680).
• kvm: Iterate over only vcpus that are preempted (bsc#989680).
• kvm: Record the preemption status of vcpus using preempt notifiers (bsc#989680).
• kvm: VMX: Pass vcpu to __vmx_complete_interrupts (bsc#989680).
• kvm: fold kvm_pit_timer into kvm_kpit_state (bsc#989680).
• kvm: make processes waiting on vcpu mutex killable (bsc#989680).
• kvm: nVMX: Add preemption timer support (bsc#989680).
• kvm: remove a wrong hack of delivery PIT intr to vcpu0 (bsc#989680).
• kvm: use symbolic constant for nr interrupts (bsc#989680).
• kvm: x86: Remove support for reporting coalesced APIC IRQs (bsc#989680).
• kvm: x86: Run PIT work in own kthread (bsc#989680).
• kvm: x86: limit difference between kvmclock updates (bsc#989680).
• libata: introduce ata_host->n_tags to avoid oops on SAS controllers (bsc#871728).
• libata: remove n_tags to avoid kABI breakage (bsc#871728).
• libfc: Do not take rdata->rp_mutex when processing a -FC_EX_CLOSED ELS response (bsc#962846).
• libfc: Fixup disc_mutex handling (bsc#962846).
• libfc: Issue PRLI after a PRLO has been received (bsc#962846).
• libfc: Revisit kref handling (bnc#990245).
• libfc: Update rport reference counting (bsc#953233).
• libfc: do not send ABTS when resetting exchanges (bsc#962846).
• libfc: fixup locking of ptp_setup() (bsc#962846).
• libfc: reset exchange manager during LOGO handling (bsc#962846).
• libfc: send LOGO for PLOGI failure (bsc#962846).
• locking/mutex: Explicitly mark task as running after wakeup (bsc#1012411).
• memstick: mspro_block: add missing curly braces (bsc#1016688).
• mlx4: Fix error flow when sending mads under SRIOV (bsc#786036 FATE#314304).
• mlx4: Fix incorrect MC join state bit-masking on SR-IOV (bsc#786036 FATE#314304).
• mlx4: Fix memory leak if QP creation failed (bsc#786036 FATE#314304).
• mlx4: Fix potential deadlock when sending mad to wire (bsc#786036 FATE#314304).
• mlx4: Forbid using sysfs to change RoCE pkeys (bsc#786036 FATE#314304).
• mlx4: Use correct subnet-prefix in QP1 mads under SR-IOV (bsc#786036 FATE#314304).
• mlx4: add missing braces in verify_qp_parameters (bsc#786036 FATE#314304).
• mm/memory_hotplug.c: check for missing sections in test_pages_in_a_zone() (bnc#961589).
• mm: fix crashes from mbind() merging vmas (bnc#1005877).
• mpi: Fix NULL ptr dereference in mpi_powm() [ver #3] (bsc#1011820).
• mremap: enforce rmap src/dst vma ordering in case of vma_merge() succeeding in copy_vma() (bsc#1008645).
• net/mlx4: Copy/set only sizeof struct mlx4_eqe bytes (bsc#786036 FATE#314304).
• net/mlx4_core: Allow resetting VF admin mac to zero (bsc#919382 FATE#317529).
• net/mlx4_core: Avoid returning success in case of an error flow (bsc#786036 FATE#314304).
• net/mlx4_core: Do not BUG_ON during reset when PCI is offline (bsc#924708).
• net/mlx4_core: Do not access comm channel if it has not yet been initialized (bsc#924708).
• net/mlx4_core: Fix error message deprecation for ConnectX-2 cards (bsc#919382 FATE#317529).
• net/mlx4_core: Fix the resource-type enum in res tracker to conform to FW spec (bsc#786036 FATE#314304).
• net/mlx4_core: Implement pci_resume callback (bsc#924708).
• net/mlx4_core: Update the HCA core clock frequency after INIT_PORT (bug#919382 FATE#317529).
• net/mlx4_en: Choose time-stamping shift value according to HW frequency (bsc#919382 FATE#317529).
• net/mlx4_en: Fix HW timestamp init issue upon system startup (bsc#919382 FATE#317529).
• net/mlx4_en: Fix potential deadlock in port statistics flow (bsc#786036 FATE#314304).
• net/mlx4_en: Move filters cleanup to a proper location (bsc#786036 FATE#314304).
• net/mlx4_en: Remove dependency between timestamping capability and service_task (bsc#919382 FATE#317529).
• net/mlx4_en: fix spurious timestamping callbacks (bsc#919382 FATE#317529).
• netfront: do not truncate grant references.
• nfsv4: Cap the transport reconnection timer at 1/2 lease period (bsc#1014410).
• nfsv4: Cleanup the setting of the nfs4 lease period (bsc#1014410).
• nfsv4: Handle timeouts correctly when probing for lease validity (bsc#1014410).
• nvme: Automatic namespace rescan (bsc#1017686).
• nvme: Metadata format support (bsc#1017686).
• ocfs2: fix BUG_ON() in ocfs2_ci_checkpointed() (bnc#1019783).
• posix-timers: Remove remaining uses of tasklist_lock (bnc#997401).
• posix-timers: Use sighand lock instead of tasklist_lock for task clock sample (bnc#997401).
• posix-timers: Use sighand lock instead of tasklist_lock on timer deletion (bnc#997401).
• powerpc/MSI: Fix race condition in tearing down MSI interrupts (bsc#1010201).
• powerpc/mm/hash64: Fix subpage protection with 4K HPTE config (bsc#1010201).
• powerpc/numa: Fix multiple bugs in memory_hotplug_max() (bsc#1010201).
• powerpc/pseries: Use H_CLEAR_HPT to clear MMU hash table during kexec (bsc#1003813).
• powerpc: fix typo 'CONFIG_PPC_CPU' (bsc#1010201).
• powerpc: scan_features() updates incorrect bits for REAL_LE (bsc#1010201).
• printk/sched: Introduce special printk_sched() for those awkward (bsc#996541).
• ptrace: __ptrace_may_access() should not deny sub-threads (bsc#1012851).
• qlcnic: fix a loop exit condition better (bsc#909350 FATE#317546).
• qlcnic: use the correct ring in qlcnic_83xx_process_rcv_ring_diag() (bnc#800999 FATE#313899).
• reiserfs: fix race in prealloc discard (bsc#987576).
• rpm/constraints.in: Bump ppc64 disk requirements to fix OBS builds again
• rpm/kernel-binary.spec.in: Export a make-stderr.log file (bsc#1012422)
• rt2x00: fix rfkill regression on rt2500pci (bnc#748806).
• s390/zcrypt: kernel: Fix invalid domain response handling (bsc#1016320).
• scsi: Fix erratic device offline during EH (bsc#993832).
• scsi: lpfc: Set elsiocb contexts to NULL after freeing it (bsc#996557).
• scsi: lpfc: avoid double free of resource identifiers (bsc#989896).
• scsi_error: count medium access timeout only once per EH run (bsc#993832).
• scsi_error: fixup crash in scsi_eh_reset (bsc#993832)
• serial: 8250_pci: Detach low-level driver during PCI error recovery (bsc#1013070).
• sunrpc: Enforce an upper limit on the number of cached credentials (bsc#1012917).
• sunrpc: Fix reconnection timeouts (bsc#1014410).
• sunrpc: Fix two issues with drop_caches and the sunrpc auth cache (bsc#1012917).
• sunrpc: Limit the reconnect backoff timer to the max RPC message timeout (bsc#1014410).
• tcp: fix inet6_csk_route_req() for link-local addresses (bsc#1010175).
• tcp: pass fl6 to inet6_csk_route_req() (bsc#1010175).
• tcp: plug dst leak in tcp_v6_conn_request() (bsc#1010175).
• tcp: use inet6_csk_route_req() in tcp_v6_send_synack() (bsc#1010175).
• tg3: Fix temperature reporting (bnc#790588 FATE#313912).
• usb: console: fix potential use after free (bsc#1015817).
• usb: console: fix uninitialised ldisc semaphore (bsc#1015817).
• usb: cp210x: Corrected USB request type definitions (bsc#1015932).
• usb: cp210x: relocate private data from USB interface to port (bsc#1015932).
• usb: cp210x: work around cp2108 GET_LINE_CTL bug (bsc#1015932).
• usb: ftdi_sio: fix null deref at port probe (bsc#1015796).
• usb: ipaq.c: fix a timeout loop (bsc#1015848).
• usb: opticon: fix non-atomic allocation in write path (bsc#1015803).
• usb: option: fix runtime PM handling (bsc#1015752).
• usb: serial: cp210x: add 16-bit register access functions (bsc#1