CVE-2015-7799

This kernel update provides an upgrade to the upstream 4.4 longterm kernel series, currently based on 4.4.13 and resolves at least the following security issues:

The Linux kernel before 4.4.1 allows local users to bypass file-descriptor limits and cause a denial of service (memory consumption) by sending each descriptor over a UNIX socket before closing it, related to net/unix/af_unix.c and net/unix/garbage.c (CVE-2013-4312).

drivers/usb/serial/whiteheat.c in the Linux kernel before 4.2.4 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a crafted USB device (CVE-2015-5257).

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c (CVE-2015-5307).

An out-of-bounds memory read was found, affecting kernels from 4.3-rc1 onwards. This vulnerability was caused by incorrect X.509 time validation in x509_decode_time() function in x509_cert_parser.c (CVE-2015-5327).

The __rds_conn_create function in net/rds/connection.c in the Linux kernel through 4.2.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by using a socket that was not properly bound (CVE-2015-6937).

The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls (CVE-2015-7550).

The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel through 4.2.3 does not ensure that certain slot numbers are valid, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call (CVE-2015-7799).

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c (CVE-2015-8104).

The networking implementation in the Linux kernel through 4.3.3, as used in Android and other products, does not validate protocol identifiers for certain protocol families, which allows local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application (CVE-2015-8543).

An issue with ASN.1 DER decoder was reported that could lead to memory corruptions, possible privilege escalation, or complete local denial of service via x509 certificate DER files (CVE-2016-0758).

The evm_verify_hmac function in security/integrity/evm/evm_main.c in the Linux kernel before 4.5 does not properly copy data, which makes it easier for local users to forge MAC values via a timing side-channel attack (CVE-2016-2085).

The atl2_probe function in drivers/net/ethernet/atheros/atlx/atl2.c in the Linux kernel through 4.5.2 incorrectly enables scatter/gather I/O, which allows remote attackers to obtain sensitive information from kernel memory by reading packet data (CVE-2016-2117).

The mct_u232_msr_to_state function in drivers/usb/serial/mct_u232.c in the Linux kernel before 4.5.1 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted USB device without two interrupt-in endpoint descriptors (CVE-2016-3136).

drivers/usb/serial/cypress_m8.c in the Linux kernel before 4.5.1 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a USB device without both an interrupt-in and an…

This kernel-linus update provides an upgrade to the upstream 4.4 longterm kernel series, currently based on 4.4.13 and resolves at least the following security issues:

The Linux kernel before 4.4.1 allows local users to bypass file-descriptor limits and cause a denial of service (memory consumption) by sending each descriptor over a UNIX socket before closing it, related to net/unix/af_unix.c and net/unix/garbage.c (CVE-2013-4312).

drivers/usb/serial/whiteheat.c in the Linux kernel before 4.2.4 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a crafted USB device (CVE-2015-5257).

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c (CVE-2015-5307).

An out-of-bounds memory read was found, affecting kernels from 4.3-rc1 onwards. This vulnerability was caused by incorrect X.509 time validation in x509_decode_time() function in x509_cert_parser.c (CVE-2015-5327).

The __rds_conn_create function in net/rds/connection.c in the Linux kernel through 4.2.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by using a socket that was not properly bound (CVE-2015-6937).

The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls (CVE-2015-7550).

The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel through 4.2.3 does not ensure that certain slot numbers are valid, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call (CVE-2015-7799).

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c (CVE-2015-8104).

The networking implementation in the Linux kernel through 4.3.3, as used in Android and other products, does not validate protocol identifiers for certain protocol families, which allows local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application (CVE-2015-8543).

The evm_verify_hmac function in security/integrity/evm/evm_main.c in the Linux kernel before 4.5 does not properly copy data, which makes it easier for local users to forge MAC values via a timing side-channel attack (CVE-2016-2085).

The atl2_probe function in drivers/net/ethernet/atheros/atlx/atl2.c in the Linux kernel through 4.5.2 incorrectly enables scatter/gather I/O, which allows remote attackers to obtain sensitive information from kernel memory by reading packet data (CVE-2016-2117).

The mct_u232_msr_to_state function in drivers/usb/serial/mct_u232.c in the Linux kernel before 4.5.1 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted USB device without two interrupt-in endpoint descriptors (CVE-2016-3136).

drivers/usb/serial/cypress_m8.c in the Linux kernel before 4.5.1 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a USB device without both an interrupt-in and an interrupt-out endpoint descriptor, related to the cypress_generic_port_probe and cypress_open functions (CVE-2016-3137).

Linux kernel built with the Kernel-based Virtual Machine(CONFIG_KVM) with…

This kernel-tmb update provides an upgrade to the upstream 4.4 longterm kernel series, currently based on 4.4.13 and resolves at least the following security issues:

The Linux kernel before 4.4.1 allows local users to bypass file-descriptor limits and cause a denial of service (memory consumption) by sending each descriptor over a UNIX socket before closing it, related to net/unix/af_unix.c and net/unix/garbage.c (CVE-2013-4312).

drivers/usb/serial/whiteheat.c in the Linux kernel before 4.2.4 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a crafted USB device (CVE-2015-5257).

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c (CVE-2015-5307).

An out-of-bounds memory read was found, affecting kernels from 4.3-rc1 onwards. This vulnerability was caused by incorrect X.509 time validation in x509_decode_time() function in x509_cert_parser.c (CVE-2015-5327).

The __rds_conn_create function in net/rds/connection.c in the Linux kernel through 4.2.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by using a socket that was not properly bound (CVE-2015-6937).

The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls (CVE-2015-7550).

The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel through 4.2.3 does not ensure that certain slot numbers are valid, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call (CVE-2015-7799).

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c (CVE-2015-8104).

The networking implementation in the Linux kernel through 4.3.3, as used in Android and other products, does not validate protocol identifiers for certain protocol families, which allows local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application (CVE-2015-8543).

An issue with ASN.1 DER decoder was reported that could lead to memory corruptions, possible privilege escalation, or complete local denial of service via x509 certificate DER files (CVE-2016-0758).

The evm_verify_hmac function in security/integrity/evm/evm_main.c in the Linux kernel before 4.5 does not properly copy data, which makes it easier for local users to forge MAC values via a timing side-channel attack (CVE-2016-2085).

The atl2_probe function in drivers/net/ethernet/atheros/atlx/atl2.c in the Linux kernel through 4.5.2 incorrectly enables scatter/gather I/O, which allows remote attackers to obtain sensitive information from kernel memory by reading packet data (CVE-2016-2117).

The mct_u232_msr_to_state function in drivers/usb/serial/mct_u232.c in the Linux kernel before 4.5.1 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted USB device without two interrupt-in endpoint descriptors (CVE-2016-3136).

drivers/usb/serial/cypress_m8.c in the Linux kernel before 4.5.1 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a USB device without both an interrupt-in and an…

The SUSE Linux Enterprise 12 kernel was updated to 3.12.51 to receive various security and bugfixes.

Following security bugs were fixed:

• CVE-2015-7799: The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel did not ensure that certain slot numbers were valid, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call (bnc#949936).
• CVE-2015-5283: The sctp_init function in net/sctp/protocol.c in the Linux kernel had an incorrect sequence of protocol-initialization steps, which allowed local users to cause a denial of service (panic or memory corruption) by creating SCTP sockets before all of the steps have finished (bnc#947155).
• CVE-2015-2925: The prepend_path function in fs/dcache.c in the Linux kernel did not properly handle rename actions inside a bind mount, which allowed local users to bypass an intended container protection mechanism by renaming a directory, related to a 'double-chroot attack (bnc#926238).
• CVE-2015-8104: The KVM subsystem in the Linux kernel allowed guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c (bnc#954404).
• CVE-2015-5307: The KVM subsystem in the Linux kernel allowed guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c (bnc#953527).
• CVE-2015-7990: RDS: There was no verification that an underlying transport exists when creating a connection, causing usage of a NULL pointer (bsc#952384).
• CVE-2015-7872: The key_gc_unused_keys function in security/keys/gc.c in the Linux kernel allowed local users to cause a denial of service (OOPS) via crafted keyctl commands (bnc#951440).
• CVE-2015-0272: Missing checks allowed remote attackers to cause a denial of service (IPv6 traffic disruption) via a crafted MTU value in an IPv6 Router Advertisement (RA) message, a different vulnerability than CVE-2015-8215 (bnc#944296).

The following non-security bugs were fixed:

• ALSA: hda - Disable 64bit address for Creative HDA controllers (bnc#814440).
• Add PCI IDs of Intel Sunrise Point-H SATA Controller S232/236 (bsc#953796).
• Btrfs: fix file corruption and data loss after cloning inline extents (bnc#956053).
• Btrfs: fix truncation of compressed and inlined extents (bnc#956053).
• Disable some ppc64le netfilter modules to restore the kabi (bsc#951546)
• Fix regression in NFSRDMA server (bsc#951110).
• KEYS: Fix race between key destruction and finding a keyring by name (bsc#951440).
• KVM: x86: call irq notifiers with directed EOI (bsc#950862).
• NVMe: Add shutdown timeout as module parameter (bnc#936076).
• NVMe: Mismatched host/device page size support (bsc#935961).
• PCI: Drop 'setting latency timer' messages (bsc#956047).
• SCSI: Fix hard lockup in scsi_remove_target() (bsc#944749).
• SCSI: hosts: update to use ida_simple for host_no (bsc#939926)
• SUNRPC: Fix oops when trace sunrpc_task events in nfs client (bnc#956703).
• Sync ppc64le netfilter config options with other archs (bnc#951546)
• Update kabi files with sbc_parse_cdb symbol change (bsc#954635).
• apparmor: allow SYS_CAP_RESOURCE to be sufficient to prlimit another task (bsc#921949).
• apparmor: temporary work around for bug while unloading policy (boo#941867).
• audit: correctly record file names with different path name types (bsc#950013).
• audit: create private file name copies when auditing inodes (bsc#950013).
• cpu: Defer smpboot kthread unparking until CPU known to scheduler (bsc#936773).
• dlm: make posix locks interruptible, (bsc#947241).
• dm sysfs: introduce ability to add writable attributes (bsc#904348).
• dm-snap: avoid deadock on s->lock when a read is split (bsc#939826).
• dm: do not start current request if it would've merged with the previous (bsc#904348).
• dm: impose configurable deadline for dm_request_fn's merge heuristic (bsc#904348).
• dmapi: Fix…

The SUSE Linux Enterprise 12 SP1 kernel was updated to 3.12.51 to receive various security and bugfixes.

Following features were added:

• hwrng: Add a driver for the hwrng found in power7+ systems (fate#315784).

Following security bugs were fixed:

• CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in the Linux kernel did not validate attempted changes to the MTU value, which allowed context-dependent attackers to cause a denial of service (packet loss) via a value that is (1) smaller than the minimum compliant value or (2) larger than the MTU of an interface, as demonstrated by a Router Advertisement (RA) message that is not validated by a daemon, a different vulnerability than CVE-2015-0272. (bsc#955354)
• CVE-2015-5156: The virtnet_probe function in drivers/net/virtio_net.c in the Linux kernel attempted to support a FRAGLIST feature without proper memory allocation, which allowed guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets (bnc#940776).
• CVE-2015-7872: The key_gc_unused_keys function in security/keys/gc.c in the Linux kernel allowed local users to cause a denial of service (OOPS) via crafted keyctl commands (bnc#951440).
• CVE-2015-7799: The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel did not ensure that certain slot numbers are valid, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call (bnc#949936).
• CVE-2015-2925: The prepend_path function in fs/dcache.c in the Linux kernel did not properly handle rename actions inside a bind mount, which allowed local users to bypass an intended container protection mechanism by renaming a directory, related to a 'double-chroot attack (bnc#926238).
• CVE-2015-7990: RDS: Verify the underlying transport exists before creating a connection, preventing possible DoS (bsc#952384).

The following non-security bugs were fixed:

• af_iucv: avoid path quiesce of severed path in shutdown() (bnc#954986, LTC#131684).
• alsa: hda - Disable 64bit address for Creative HDA controllers (bnc#814440).
• alsa: hda - Fix noise problems on Thinkpad T440s (boo#958504).
• alsa: hda - Fix noise problems on Thinkpad T440s (boo#958504).
• apparmor: allow SYS_CAP_RESOURCE to be sufficient to prlimit another task (bsc#921949).
• audit: correctly record file names with different path name types (bsc#950013).
• audit: create private file name copies when auditing inodes (bsc#950013).
• bcache: Add btree_insert_node() (bnc#951638).
• bcache: Add explicit keylist arg to btree_insert() (bnc#951638).
• bcache: backing device set to clean after finishing detach (bsc#951638).
• bcache: backing device set to clean after finishing detach (bsc#951638).
• bcache: Clean up keylist code (bnc#951638).
• bcache: Convert btree_insert_check_key() to btree_insert_node() (bnc#951638).
• bcache: Convert bucket_wait to wait_queue_head_t (bnc#951638).
• bcache: Convert try_wait to wait_queue_head_t (bnc#951638).
• bcache: Explicitly track btree node's parent (bnc#951638).
• bcache: Fix a bug when detaching (bsc#951638).
• bcache: Fix a lockdep splat in an error path (bnc#951638).
• bcache: Fix a shutdown bug (bsc#951638).
• bcache: Fix more early shutdown bugs (bsc#951638).
• bcache: Fix sysfs splat on shutdown with flash only devs (bsc#951638).
• bcache: Insert multiple keys at a time (bnc#951638).
• bcache: kill closure locking usage (bnc#951638).
• bcache: Refactor journalling flow control (bnc#951638).
• bcache: Refactor request_write() (bnc#951638).
• bcache: Use blkdev_issue_discard() (bnc#951638).
• btrfs: Adjust commit-transaction condition to avoid NO_SPACE more (bsc#958647).
• btrfs: Adjust commit-transaction condition to avoid NO_SPACE more (bsc#958647).
• btrfs: cleanup: remove no-used alloc_chunk in btrfs_check_data_free_space() (bsc#958647).
• btrfs: cleanup: remove no-used alloc_chunk in…

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

Following security bugs were fixed:

• CVE-2015-7509: Mounting ext4 filesystems in no-journal mode could hav lead to a system crash (bsc#956709).
• CVE-2015-7799: The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel did not ensure that certain slot numbers are valid, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call (bnc#949936).
• CVE-2015-8104: The KVM subsystem in the Linux kernel allowed guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c (bnc#954404).
• CVE-2015-5307: The KVM subsystem in the Linux kernel allowed guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c (bnc#953527).
• CVE-2015-7990: RDS: There was no verification that an underlying transport exists when creating a connection, causing usage of a NULL pointer (bsc#952384).
• CVE-2015-5157: arch/x86/entry/entry_64.S in the Linux kernel on the x86_64 platform mishandled IRET faults in processing NMIs that occurred during userspace execution, which might have allowed local users to gain privileges by triggering an NMI (bnc#938706).
• CVE-2015-7872: The key_gc_unused_keys function in security/keys/gc.c in the Linux kernel allowed local users to cause a denial of service (OOPS) via crafted keyctl commands (bnc#951440).
• CVE-2015-0272: Missing checks allowed remote attackers to cause a denial of service (IPv6 traffic disruption) via a crafted MTU value in an IPv6 Router Advertisement (RA) message, a different vulnerability than CVE-2015-8215 (bnc#944296).
• CVE-2015-6937: The __rds_conn_create function in net/rds/connection.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by using a socket that was not properly bound (bnc#945825).

The following non-security bugs were fixed:

• ALSA: hda - Disable 64bit address for Creative HDA controllers (bnc#814440).
• Driver: Vmxnet3: Fix ethtool -S to return correct rx queue stats (bsc#950750).
• Drivers: hv: do not do hypercalls when hypercall_page is NULL.
• Drivers: hv: kvp: move poll_channel() to hyperv_vmbus.h.
• Drivers: hv: util: move kvp/vss function declarations to hyperv_vmbus.h.
• Drivers: hv: vmbus: Get rid of some unused definitions.
• Drivers: hv: vmbus: Implement the protocol for tearing down vmbus state.
• Drivers: hv: vmbus: add special crash handler (bnc#930770).
• Drivers: hv: vmbus: add special kexec handler.
• Drivers: hv: vmbus: kill tasklets on module unload.
• Drivers: hv: vmbus: prefer '^A' notification chain to 'panic'.
• Drivers: hv: vmbus: remove hv_synic_free_cpu() call from hv_synic_cleanup().
• Drivers: hv: vmbus: unregister panic notifier on module unload.
• IB/srp: Avoid skipping srp_reset_host() after a transport error (bsc#904965).
• IB/srp: Fix a sporadic crash triggered by cable pulling (bsc#904965).
• KEYS: Fix race between key destruction and finding a keyring by name (bsc#951440).
• Make sure XPRT_CONNECTING gets cleared when needed (bsc#946309).
• NFSv4: Fix two infinite loops in the mount code (bsc#954628).
• PCI: Add VPD function 0 quirk for Intel Ethernet devices (bnc#943786).
• PCI: Add dev_flags bit to access VPD through function 0 (bnc#943786).
• PCI: Clear NumVFs when disabling SR-IOV in sriov_init() (bnc#952084).
• PCI: Refresh First VF Offset and VF Stride when updating NumVFs (bnc#952084).
• PCI: Update NumVFs register when disabling SR-IOV (bnc#952084).
• PCI: delay configuration of SRIOV capability (bnc#952084).
• PCI: set pci sriov page size before reading SRIOV BAR (bnc#952084).
• SCSI: hosts: update to use ida_simple for host_no (bsc#939926)
• SUNRPC refactor rpcauth_checkverf error returns…

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

Following security bugs were fixed:

• CVE-2015-7509: Mounting a prepared ext2 filesystem as ext4 could lead to a local denial of service (crash) (bsc#956709).
• CVE-2015-7799: The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel did not ensure that certain slot numbers are valid, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call (bnc#949936).
• CVE-2015-8104: The KVM subsystem in the Linux kernel allowed guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c (bnc#954404).
• CVE-2015-5307: The KVM subsystem in the Linux kernel allowed guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c (bnc#953527).
• CVE-2015-7990: RDS: Verify the underlying transport exists before creating a connection, preventing possible DoS (bsc#952384).
• CVE-2015-5157: arch/x86/entry/entry_64.S in the Linux kernel on the x86_64 platform mishandled IRET faults in processing NMIs that occurred during userspace execution, which might allow local users to gain privileges by triggering an NMI (bnc#937969 937970 938706 939207).
• CVE-2015-7872: The key_gc_unused_keys function in security/keys/gc.c in the Linux kernel allowed local users to cause a denial of service (OOPS) via crafted keyctl commands (bnc#951440).
• CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in the Linux kernel did not validate attempted changes to the MTU value, which allowed context-dependent attackers to cause a denial of service (packet loss) via a value that is (1) smaller than the minimum compliant value or (2) larger than the MTU of an interface, as demonstrated by a Router Advertisement (RA) message that is not validated by a daemon, a different vulnerability than CVE-2015-0272. NOTE: the scope of CVE-2015-0272 is limited to the NetworkManager product. (bnc#955354).
• CVE-2015-6937: The __rds_conn_create function in net/rds/connection.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by using a socket that was not properly bound (bnc#945825).

The following non-security bugs were fixed:

• af_xhci: avoid path quiesce of severed path in shutdown() (bnc#946214, LTC#131684).
• ahci: Add Device ID for Intel Sunrise Point PCH (bsc#953799).
• alsa: hda - Disable 64bit address for Creative HDA controllers (bnc#814440).
• blktap: also call blkif_disconnect() when frontend switched to closed (bsc#952976).
• blktap: refine mm tracking (bsc#952976).
• cachefiles: Avoid deadlocks with fs freezing (bsc#935123).
• dm: do not start current request if it would've merged with the previous (bsc#904348).
• dm: impose configurable deadline for dm_request_fn's merge heuristic (bsc#904348).
• dm-snap: avoid deadock on s->lock when a read is split (bsc#939826).
• dm sysfs: introduce ability to add writable attributes (bsc#904348).
• drivers: hv: do not do hypercalls when hypercall_page is NULL.
• drivers: hv: kvp: move poll_channel() to hyperv_vmbus.h.
• drivers: hv: util: move kvp/vss function declarations to hyperv_vmbus.h.
• drivers: hv: vmbus: add special crash handler (bnc#930770).
• drivers: hv: vmbus: add special kexec handler.
• drivers: hv: vmbus: Get rid of some unused definitions.
• drivers: hv: vmbus: Implement the protocol for tearing down vmbus state.
• drivers: hv: vmbus: kill tasklets on module unload.
• drivers: hv: vmbus: prefer 'die' notification chain to 'panic'.
• drivers: hv: vmbus: remove hv_synic_free_cpu() call from hv_synic_cleanup().
• drivers: hv: vmbus: unregister panic notifier on module unload.
• driver: Vmxnet3: Fix ethtool -S to…

The SUSE Linux Enterprise 12 SP1 kernel was updated to 3.12.53 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2013-7446: Use-after-free vulnerability in net/unix/af_unix.c in the Linux kernel allowed local users to bypass intended AF_UNIX socket permissions or cause a denial of service (panic) via crafted epoll_ctl calls (bnc#955654).
• CVE-2015-5707: Integer overflow in the sg_start_req function in drivers/scsi/sg.c in the Linux kernel allowed local users to cause a denial of service or possibly have unspecified other impact via a large iov_count value in a write request (bnc#940338).
• CVE-2015-7550: The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel did not properly use a semaphore, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls (bnc#958951).
• CVE-2015-7799: The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel did not ensure that certain slot numbers are valid, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call (bnc#949936).
• CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in the Linux kernel did not validate attempted changes to the MTU value, which allowed context-dependent attackers to cause a denial of service (packet loss) via a value that was (1) smaller than the minimum compliant value or (2) larger than the MTU of an interface, as demonstrated by a Router Advertisement (RA) message that is not validated by a daemon, a different vulnerability than CVE-2015-0272 (bnc#955354).
• CVE-2015-8539: The KEYS subsystem in the Linux kernel allowed local users to gain privileges or cause a denial of service (BUG) via crafted keyctl commands that negatively instantiate a key, related to security/keys/encrypted-keys/encrypted.c, security/keys/trusted.c, and security/keys/user_defined.c (bnc#958463).
• CVE-2015-8543: The networking implementation in the Linux kernel did not validate protocol identifiers for certain protocol families, which allowed local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application (bnc#958886).
• CVE-2015-8550: Optimizations introduced by the compiler could have lead to double fetch vulnerabilities, potentially possibly leading to arbitrary code execution in backend (bsc#957988).
• CVE-2015-8551: Xen PCI backend driver did not perform proper sanity checks on the device's state, allowing for DoS (bsc#957990).
• CVE-2015-8569: The (1) pptp_bind and (2) pptp_connect functions in drivers/net/ppp/pptp.c in the Linux kernel did not verify an address length, which allowed local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism via a crafted application (bnc#959190).
• CVE-2015-8575: The sco_sock_bind function in net/bluetooth/sco.c in the Linux kernel did not verify an address length, which allowed local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism via a crafted application (bnc#959399).
• CVE-2015-8660: The ovl_setattr function in fs/overlayfs/inode.c in the Linux kernel attempted to merge distinct setattr operations, which allowed local users to bypass intended access restrictions and modify the attributes of arbitrary overlay files via a crafted application (bnc#960281).
• CVE-2015-8767: net/sctp/sm_sideeffect.c in the Linux kernel did not properly manage the relationship between a lock and a socket, which allowed local users to cause a denial of service (deadlock) via a crafted sctp_accept call (bnc#961509).
• CVE-2015-8785: The fuse_fill_write_pages function in fs/fuse/file.c in the Linux kernel…

The SUSE Linux Enterprise 11 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2013-7446: Use-after-free vulnerability in net/unix/af_unix.c in the Linux kernel allowed local users to bypass intended AF_UNIX socket permissions or cause a denial of service (panic) via crafted epoll_ctl calls (bnc#955654).
• CVE-2015-7509: fs/ext4/namei.c in the Linux kernel allowed physically proximate attackers to cause a denial of service (system crash) via a crafted no-journal filesystem, a related issue to CVE-2013-2015 (bnc#956707).
• CVE-2015-7515: An out of bounds memory access in the aiptek USB driver could be used by physical local attackers to crash the kernel (bnc#956708).
• CVE-2015-7550: The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel did not properly use a semaphore, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls (bnc#958951).
• CVE-2015-7566: A malicious USB device could cause kernel crashes in the visor device driver (bnc#961512).
• CVE-2015-7799: The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel did not ensure that certain slot numbers are valid, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call (bnc#949936).
• CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in the Linux kernel did not validate attempted changes to the MTU value, which allowed context-dependent attackers to cause a denial of service (packet loss) via a value that is (1) smaller than the minimum compliant value or (2) larger than the MTU of an interface, as demonstrated by a Router Advertisement (RA) message that is not validated by a daemon, a different vulnerability than CVE-2015-0272. NOTE: the scope of CVE-2015-0272 is limited to the NetworkManager product (bnc#955354).
• CVE-2015-8539: The KEYS subsystem in the Linux kernel allowed local users to gain privileges or cause a denial of service (BUG) via crafted keyctl commands that negatively instantiate a key, related to security/keys/encrypted-keys/encrypted.c, security/keys/trusted.c, and security/keys/user_defined.c (bnc#958463).
• CVE-2015-8543: The networking implementation in the Linux kernel did not validate protocol identifiers for certain protocol families, which allowed local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application (bnc#958886).
• CVE-2015-8550: Optimizations introduced by the compiler could have lead to double fetch vulnerabilities, potentially possibly leading to arbitrary code execution in backend (bsc#957988). (bsc#957988 XSA-155).
• CVE-2015-8551: The PCI backend driver in Xen, when running on an x86 system and using Linux as the driver domain, allowed local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka 'Linux pciback missing sanity checks (bnc#957990).
• CVE-2015-8552: The PCI backend driver in Xen, when running on an x86 system and using Linux as the driver domain, allowed local guest administrators to generate a continuous stream of WARN messages and cause a denial of service (disk consumption) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and XEN_PCI_OP_enable_msi operations, aka 'Linux pciback missing sanity checks (bnc#957990).
• CVE-2015-8569: The (1) pptp_bind and (2) pptp_connect…

The SUSE Linux Enterprise 11 SP2 kernel was updated to receive various security and bug fixes.

The following security bugs were fixed:

• CVE-2016-4486: Fixed 4 byte information leak in net/core/rtnetlink.c (bsc#978822).
• CVE-2016-3134: The netfilter subsystem in the Linux kernel did not validate certain offset fields, which allowed local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call (bnc#971126).
• CVE-2016-2847: fs/pipe.c in the Linux kernel did not limit the amount of unread data in pipes, which allowed local users to cause a denial of service (memory consumption) by creating many pipes with non-default sizes (bnc#970948).
• CVE-2016-2188: The iowarrior_probe function in drivers/usb/misc/iowarrior.c in the Linux kernel allowed physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted endpoints value in a USB device descriptor (bnc#970956).
• CVE-2016-3138: The acm_probe function in drivers/usb/class/cdc-acm.c in the Linux kernel allowed physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a USB device without both a control and a data endpoint descriptor (bnc#970911).
• CVE-2016-3137: drivers/usb/serial/cypress_m8.c in the Linux kernel allowed physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a USB device without both an interrupt-in and an interrupt-out endpoint descriptor, related to the cypress_generic_port_probe and cypress_open functions (bnc#970970).
• CVE-2016-3140: The digi_port_init function in drivers/usb/serial/digi_acceleport.c in the Linux kernel allowed physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted endpoints value in a USB device descriptor (bnc#970892).
• CVE-2016-2186: The powermate_probe function in drivers/input/misc/powermate.c in the Linux kernel allowed physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted endpoints value in a USB device descriptor (bnc#970958).
• CVE-2016-2185: The ati_remote2_probe function in drivers/input/misc/ati_remote2.c in the Linux kernel allowed physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted endpoints value in a USB device descriptor (bnc#971124).
• CVE-2016-3156: The IPv4 implementation in the Linux kernel mishandles destruction of device objects, which allowed guest OS users to cause a denial of service (host OS networking outage) by arranging for a large number of IP addresses (bnc#971360).
• CVE-2016-2184: The create_fixed_stream_quirk function in sound/usb/quirks.c in the snd-usb-audio driver in the Linux kernel allowed physically proximate attackers to cause a denial of service (NULL pointer dereference or double free, and system crash) via a crafted endpoints value in a USB device descriptor (bnc#971125).
• CVE-2016-3139: The wacom_probe function in drivers/input/tablet/wacom_sys.c in the Linux kernel allowed physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted endpoints value in a USB device descriptor (bnc#970909).
• CVE-2016-2143: The fork implementation in the Linux kernel on s390 platforms mishandled the case of four page-table levels, which allowed local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted application, related to arch/s390/include/asm/mmu_context.h and arch/s390/include/asm/pgalloc.h (bnc#970504).
• CVE-2016-2782: The treo_attach function in drivers/usb/serial/visor.c in the Linux kernel allowed physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by inserting a USB device that lacks a (1)…

The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel through 4.2.3 does not ensure that certain slot numbers are valid, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call.

Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. (CVE-2015-8104)

郭永刚 discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). (CVE-2015-7799)

It was discovered that the driver for Digi Neo and ClassicBoard devices did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7885)

Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. (CVE-2015-8104)

郭永刚 discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). (CVE-2015-7799)

It was discovered that the virtual video osd test driver in the Linux kernel did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7884)

It was discovered that the driver for Digi Neo and ClassicBoard devices did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7885)

Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. (CVE-2015-8104)

郭永刚 discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). (CVE-2015-7799)

Dmitry Vyukov discovered that the Linux kernel's keyring handler attempted to garbage collect incompletely instantiated keys. A local unprivileged attacker could use this to cause a denial of service (system crash). (CVE-2015-7872)

It was discovered that the virtual video osd test driver in the Linux kernel did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7884)

It was discovered that the driver for Digi Neo and ClassicBoard devices did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7885)

Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. (CVE-2015-8104)

郭永刚 discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash). (CVE-2015-7799)

It was discovered that the driver for Digi Neo and ClassicBoard devices did not properly initialize data structures. A local attacker could use this to obtain sensitive information from the kernel. (CVE-2015-7885)