SUSE-SU-2019:13937-1

Описание

The SUSE Linux Enterprise 12 SP3 kernel was updated to 3.0.101 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-9516: In hid_debug_events_read of drivers/hid/hid-debug.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1108498).
• CVE-2018-19407: The vcpu_scan_ioapic function in arch/x86/kvm/x86.c allowed local users to cause a denial of service (NULL pointer dereference and BUG) via crafted system calls that reach a situation where ioapic is uninitialized (bnc#1116841).
• CVE-2018-19985: The function hso_probe read if_num from the USB device (as an u8) and used it without a length check to index an array, resulting in an OOB memory read in hso_probe or hso_get_config_data that could be used by local attackers (bnc#1120743).
• CVE-2018-20169: The USB subsystem mishandled size checks during the reading of an extra descriptor, related to __usb_get_extra_descriptor in drivers/usb/core/usb.c (bnc#1119714).
• CVE-2018-9568: In sk_clone_lock of sock.c, there is a possible memory corruption due to type confusion. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation (bnc#1118319).
• CVE-2018-19824: A local user could exploit a use-after-free in the ALSA driver by supplying a malicious USB Sound device (with zero interfaces) that is mishandled in usb_audio_probe in sound/usb/card.c (bnc#1118152).
• CVE-2018-18281: The mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused (bnc#1113769).
• CVE-2018-18710: An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bnc#1113751).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2017-7273: The cp_report_fixup function in drivers/hid/hid-cypress.c allowed physically proximate attackers to cause a denial of service (integer underflow) or possibly have unspecified other impact via a crafted HID report (bnc#1031240).
• CVE-2017-16533: The usbhid_parse function in drivers/hid/usbhid/hid-core.c allowed local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1066674).
• CVE-2017-1000407: Fixed a denial of service, which was caused by flooding the diagnostic port 0x80 an exception leading to a kernel panic (bnc#1071021).

The following non-security bugs were fixed:

• ALSA: pcm: Fix potential deadlock in OSS emulation (bsc#968018, bsc#1104366).
• cpusets, isolcpus: exclude isolcpus from load balancing in cpusets (bsc#1119255).
• Drivers: scsi: storvsc: Change the limits to reflect the values on the host (bug#1107189).
• drivers: scsi: storvsc: Correctly handle TEST_UNIT_READY failure (bug#1107189).
• Drivers: scsi: storvsc: Filter commands based on the storage protocol version (bug#1107189).
• Drivers: scsi: storvsc: Fix a bug in handling VMBUS protocol version (bug#1107189).
• Drivers: scsi: storvsc: Implement a eh_timed_out handler (bug#1107189).
• Drivers: scsi: storvsc: Set cmd_per_lun to reflect value supported by the Host (bug#1107189).
• drivers: scsi: storvsc: Set srb_flags in all cases (bug#1107189).
• EHCI: improved logic for isochronous scheduling (bsc#1117515).
• ipv4: remove the unnecessary variable in udp_mcast_next (bsc#1104070).
• KEYS: prevent creating a different user's keyrings (bnc#1094186).
• KVM: x86: Fix the duplicate failure path handling in vmx_init (bsc#1104367).
• MM: increase safety margin provided by PF_LESS_THROTTLE (bsc#1116412).
• MM/vmscan.c: avoid throttling reclaim for loop-back nfsd threads (bsc#1116412).
• net/ipv6/udp: Fix ipv6 multicast socket filter regression (bsc#1104070).
• NFS: avoid deadlocks with loop-back mounted NFS filesystems (bsc#1116412).
• NFS: avoid waiting at all in nfs_release_page when congested (bsc#1116412).
• NFS: Do not write enable new pages while an invalidation is proceeding (bsc#1116412).
• NFS: Fix a regression in the read() syscall (bsc#1116412).
• NFS: Fix races in nfs_revalidate_mapping (bsc#1116412).
• NFS: fix the handling of NFS_INO_INVALID_DATA flag in nfs_revalidate_mapping (bsc#1116412).
• NFS: Fix writeback performance issue on cache invalidation (bsc#1116412).
• reiserfs: do not preallocate blocks for extended attributes (bsc#990682).
• reiserfs: fix race in readdir (bsc#1039803).
• sched, isolcpu: make cpu_isolated_map visible outside scheduler (bsc#1119255).
• scsi: storvsc: Always send on the selected outgoing channel (bug#1107189).
• scsi: storvsc: Do not assume that the scatterlist is not chained (bug#1107189).
• scsi: storvsc: Fix a bug in copy_from_bounce_buffer() (bug#1107189).
• scsi: storvsc: Increase the ring buffer size (bug#1107189).
• scsi: storvsc: Size the queue depth based on the ringbuffer size (bug#1107189).
• storvsc: fix a bug in storvsc limits (bug#1107189).
• storvsc: force discovery of LUNs that may have been removed (bug#1107189).
• storvsc: get rid of overly verbose warning messages (bug#1107189).
• storvsc: in responce to a scan event, scan the host (bug#1107189).
• storvsc: Set the SRB flags correctly when no data transfer is needed (bug#1107189).
• udp: ipv4: Add udp early demux (bsc#1104070).
• udp: restore UDPlite many-cast delivery (bsc#1104070).
• udp: Simplify __udp*_lib_mcast_deliver (bsc#1104070).
• udp: Use hash2 for long hash1 chains in __udp*_lib_mcast_deliver (bsc#1104070).
• USB: EHCI: add new root-hub state: STOPPING (bsc#1117515).
• USB: EHCI: add pointer to end of async-unlink list (bsc#1117515).
• USB: EHCI: add symbolic constants for QHs (bsc#1117515).
• USB: EHCI: always scan each interrupt QH (bsc#1117515).
• USB: EHCI: do not lose events during a scan (bsc#1117515).
• USB: EHCI: do not refcount iso_stream structures (bsc#1117515).
• USB: EHCI: do not refcount QHs (bsc#1117515).
• USB: EHCI: fix initialization bug in iso_stream_schedule() (bsc#1117515).
• USB: EHCI: fix up locking (bsc#1117515).
• USB: EHCI: initialize data before resetting hardware (bsc#1117515).
• USB: EHCI: introduce high-res timer (bsc#1117515).
• USB: EHCI: remove PS3 status polling (bsc#1117515).
• USB: EHCI: remove unneeded suspend/resume code (bsc#1117515).
• USB: EHCI: rename 'reclaim' (bsc#1117515).
• USB: EHCI: resolve some unlikely races (bsc#1117515).
• USB: EHCI: return void instead of 0 (bsc#1117515).
• USB: EHCI: simplify isochronous scanning (bsc#1117515).
• USB: EHCI: unlink multiple async QHs together (bsc#1117515).
• USB: EHCI: use hrtimer for async schedule (bsc#1117515).
• USB: EHCI: use hrtimer for controller death (bsc#1117515).
• USB: EHCI: use hrtimer for interrupt QH unlink (bsc#1117515).
• USB: EHCI: use hrtimer for (s)iTD deallocation (bsc#1117515).
• USB: EHCI: use hrtimer for the IAA watchdog (bsc#1117515).
• USB: EHCI: use hrtimer for the I/O watchdog (bsc#1117515).
• USB: EHCI: use hrtimer for the periodic schedule (bsc#1117515).
• USB: EHCI: use hrtimer for unlinking empty async QHs (bsc#1117515).
• XFS: do not BUG() on mixed direct and mapped I/O (bsc#1114920).
• XFS: stop searching for free slots in an inode chunk when there are none (bsc#1115007).
• XFS: validate sb_logsunit is a multiple of the fs blocksize (bsc#1115038).