CVE-2018-13053

The alarm_timer_nsleep function in kernel/time/alarmtimer.c in the Linux kernel through 4.17.3 has an integer overflow via a large relative timeout because ktime_add_safe is not used.

These are all security issues fixed in the kernel-devel-5.14.6-1.4 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the kernel-devel-longterm-6.6.17-1.1 package on the GA media of openSUSE Tumbleweed.

The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.140 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-13053: The alarm_timer_nsleep function had an integer overflow via a large relative timeout because ktime_add_safe was not used (bnc#1099924)
• CVE-2018-9385: Prevent overread of the 'driver_override' buffer (bsc#1100491)
• CVE-2018-13405: The inode_init_owner function allowed local users to create files with an unintended group ownership allowing attackers to escalate privileges by making a plain file executable and SGID (bnc#1100416)
• CVE-2018-13406: An integer overflow in the uvesafb_setcmap function could have result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1100418)

The following non-security bugs were fixed:

• 1wire: family module autoload fails because of upper/lower case mismatch (bnc#1012382).
• ALSA: hda - Clean up ALC299 init code (bsc#1099810).
• ALSA: hda - Enable power_save_node for CX20722 (bsc#1099810).
• ALSA: hda - Fix a wrong FIXUP for alc289 on Dell machines (bsc#1099810).
• ALSA: hda - Fix incorrect usage of IS_REACHABLE() (bsc#1099810).
• ALSA: hda - Fix pincfg at resume on Lenovo T470 dock (bsc#1099810).
• ALSA: hda - Handle kzalloc() failure in snd_hda_attach_pcm_stream() (bnc#1012382).
• ALSA: hda - Use acpi_dev_present() (bsc#1099810).
• ALSA: hda - add a new condition to check if it is thinkpad (bsc#1099810).
• ALSA: hda - silence uninitialized variable warning in activate_amp_in() (bsc#1099810).
• ALSA: hda/patch_sigmatel: Add AmigaOne X1000 pinconfigs (bsc#1099810).
• ALSA: hda/realtek - Add a quirk for FSC ESPRIMO U9210 (bsc#1099810).
• ALSA: hda/realtek - Add headset mode support for Dell laptop (bsc#1099810).
• ALSA: hda/realtek - Add support headset mode for DELL WYSE (bsc#1099810).
• ALSA: hda/realtek - Clevo P950ER ALC1220 Fixup (bsc#1099810).
• ALSA: hda/realtek - Enable Thinkpad Dock device for ALC298 platform (bsc#1099810).
• ALSA: hda/realtek - Enable mic-mute hotkey for several Lenovo AIOs (bsc#1099810).
• ALSA: hda/realtek - Fix Dell headset Mic can't record (bsc#1099810).
• ALSA: hda/realtek - Fix pop noise on Lenovo P50 and co (bsc#1099810).
• ALSA: hda/realtek - Fix the problem of two front mics on more machines (bsc#1099810).
• ALSA: hda/realtek - Fixup for HP x360 laptops with BandO speakers (bsc#1099810).
• ALSA: hda/realtek - Fixup mute led on HP Spectre x360 (bsc#1099810).
• ALSA: hda/realtek - Make dock sound work on ThinkPad L570 (bsc#1099810).
• ALSA: hda/realtek - Refactor alc269_fixup_hp_mute_led_mic*() (bsc#1099810).
• ALSA: hda/realtek - Reorder ALC269 ASUS quirk entries (bsc#1099810).
• ALSA: hda/realtek - Support headset mode for ALC215/ALC285/ALC289 (bsc#1099810).
• ALSA: hda/realtek - Update ALC255 depop optimize (bsc#1099810).
• ALSA: hda/realtek - adjust the location of one mic (bsc#1099810).
• ALSA: hda/realtek - change the location for one of two front mics (bsc#1099810).
• ALSA: hda/realtek - set PINCFG_HEADSET_MIC to parse_flags (bsc#1099810).
• ALSA: hda/realtek - update ALC215 depop optimize (bsc#1099810).
• ALSA: hda/realtek - update ALC225 depop optimize (bsc#1099810).
• ALSA: hda/realtek: Fix mic and headset jack sense on Asus X705UD (bsc#1099810).
• ALSA: hda/realtek: Limit mic boost on T480 (bsc#1099810).
• ALSA: hda: Fix forget to free resource in error handling code path in hda_codec_driver_probe (bsc#1099810).
• ALSA: hda: add dock and led support for HP EliteBook 830 G5 (bsc#1099810).
• ALSA: hda: add dock and led support for HP ProBook 640 G4 (bsc#1099810).
• ALSA: hda: fix some klockwork scan warnings (bsc#1099810).
• ARM: 8764/1: kgdb: fix NUMREGBYTES so that gdb_regs[] is the correct size (bnc#1012382).
• ARM: dts: imx6q: Use correct SDMA script for SPI5 core (bnc#1012382).
• ASoC: cirrus: i2s: Fix LRCLK configuration (bnc#1012382).
• ASoC: cirrus: i2s: Fix {TX|RX}LinCtrlData setup (bnc#1012382). -…

The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes.

The following new feature was added:

• NVDIMM memory error notification (ACPI 6.2)

The following security bugs were fixed:

• CVE-2018-13406: An integer overflow in the uvesafb_setcmap function could have result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1100418)
• CVE-2018-13053: The alarm_timer_nsleep function had an integer overflow via a large relative timeout because ktime_add_safe was not used (bnc#1099924)
• CVE-2018-9385: Prevent overread of the 'driver_override' buffer (bsc#1100491)
• CVE-2018-13405: The inode_init_owner function allowed local users to create files with an unintended group ownership allowing attackers to escalate privileges by making a plain file executable and SGID (bnc#1100416)
• CVE-2017-5753: Systems with microprocessors utilizing speculative execution and branch prediction may have allowed unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (bsc#1068032)
• CVE-2018-1118: Linux kernel vhost did not properly initialize memory in messages passed between virtual guests and the host operating system. This could have allowed local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file (bsc#1092472)
• CVE-2018-12233: A memory corruption bug in JFS could have been triggered by calling setxattr twice with two different extended attribute names on the same file. This vulnerability could be triggered by an unprivileged user with the ability to create files and execute programs (bsc#1097234)
• CVE-2018-5848: In the function wmi_set_ie(), the length validation code did not handle unsigned integer overflow properly. As a result, a large value of the 'ie_len' argument could have caused a buffer overflow (bnc#1097356)
• CVE-2018-1000204: Prevent infoleak caused by incorrect handling of the SG_IO ioctl (bsc#1096728)
• CVE-2018-3639: Systems with microprocessors utilizing speculative execution and speculative execution of memory reads the addresses of all prior memory writes are known may have allowed unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB), Variant 4 (bsc#1087082)
• CVE-2018-1120: By mmap()ing a FUSE-backed file onto a process's memory containing command line arguments (or environment strings), an attacker could have caused utilities from psutils or procps (such as ps, w) to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks) (bsc#1093158)
• CVE-2018-1094: The ext4_fill_super function did not always initialize the crc32c checksum driver, which allowed attackers to cause a denial of service (ext4_xattr_inode_hash NULL pointer dereference and system crash) via a crafted ext4 image (bsc#1087007)
• CVE-2018-1092: The ext4_iget function mishandled the case of a root directory with a zero i_links_count, which allowed attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image (bsc#1087012)
• 1093: The ext4_valid_block_bitmap function allowed attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image because balloc.c and ialloc.c do not validate bitmap block numbers (bsc#1087095)
• CVE-2018-1000200: Prevent NULL pointer dereference which could have resulted in an out of memory (OOM) killing of large mlocked processes (bsc#1090150)
• CVE-2018-1130: NULL pointer dereference in dccp_write_xmit() function that allowed a local user to cause a denial of service by a number of certain crafted system calls (bsc#1092904)
• CVE-2018-5803: Prevent error in the '_sctp_make_chunk()' function when handling SCTP packets…

The SUSE Linux Enterprise 12 SP3 RT kernel was updated to 4.4.139 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-13053: The alarm_timer_nsleep function had an integer overflow via a large relative timeout because ktime_add_safe was not used (bnc#1099924)
• CVE-2018-9385: Prevent overread of the 'driver_override' buffer (bsc#1100491)
• CVE-2018-13405: The inode_init_owner function allowed local users to create files with an unintended group ownership allowing attackers to escalate privileges by making a plain file executable and SGID (bnc#1100416)
• CVE-2018-13406: An integer overflow in the uvesafb_setcmap function could have result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1100418)
• CVE-2017-5753: Systems with microprocessors utilizing speculative execution and branch prediction may have allowed unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (bsc#1068032)

The following non-security bugs were fixed:

• 1wire: family module autoload fails because of upper/lower case mismatch (bnc#1012382).
• ALSA: hda - Clean up ALC299 init code (bsc#1099810).
• ALSA: hda - Enable power_save_node for CX20722 (bsc#1099810).
• ALSA: hda - Fix a wrong FIXUP for alc289 on Dell machines (bsc#1099810).
• ALSA: hda - Fix incorrect usage of IS_REACHABLE() (bsc#1099810).
• ALSA: hda - Fix pincfg at resume on Lenovo T470 dock (bsc#1099810).
• ALSA: hda - Handle kzalloc() failure in snd_hda_attach_pcm_stream() (bnc#1012382).
• ALSA: hda - Use acpi_dev_present() (bsc#1099810).
• ALSA: hda - add a new condition to check if it is thinkpad (bsc#1099810).
• ALSA: hda - silence uninitialized variable warning in activate_amp_in() (bsc#1099810).
• ALSA: hda/patch_sigmatel: Add AmigaOne X1000 pinconfigs (bsc#1099810).
• ALSA: hda/realtek - Add a quirk for FSC ESPRIMO U9210 (bsc#1099810).
• ALSA: hda/realtek - Add headset mode support for Dell laptop (bsc#1099810).
• ALSA: hda/realtek - Add support headset mode for DELL WYSE (bsc#1099810).
• ALSA: hda/realtek - Clevo P950ER ALC1220 Fixup (bsc#1099810).
• ALSA: hda/realtek - Enable Thinkpad Dock device for ALC298 platform (bsc#1099810).
• ALSA: hda/realtek - Enable mic-mute hotkey for several Lenovo AIOs (bsc#1099810).
• ALSA: hda/realtek - Fix Dell headset Mic can't record (bsc#1099810).
• ALSA: hda/realtek - Fix pop noise on Lenovo P50 and co (bsc#1099810).
• ALSA: hda/realtek - Fix the problem of two front mics on more machines (bsc#1099810).
• ALSA: hda/realtek - Fixup for HP x360 laptops with B and O speakers (bsc#1099810).
• ALSA: hda/realtek - Fixup mute led on HP Spectre x360 (bsc#1099810).
• ALSA: hda/realtek - Make dock sound work on ThinkPad L570 (bsc#1099810).
• ALSA: hda/realtek - Refactor alc269_fixup_hp_mute_led_mic*() (bsc#1099810).
• ALSA: hda/realtek - Reorder ALC269 ASUS quirk entries (bsc#1099810).
• ALSA: hda/realtek - Support headset mode for ALC215/ALC285/ALC289 (bsc#1099810).
• ALSA: hda/realtek - Update ALC255 depop optimize (bsc#1099810).
• ALSA: hda/realtek - adjust the location of one mic (bsc#1099810).
• ALSA: hda/realtek - change the location for one of two front mics (bsc#1099810).
• ALSA: hda/realtek - set PINCFG_HEADSET_MIC to parse_flags (bsc#1099810).
• ALSA: hda/realtek - update ALC215 depop optimize (bsc#1099810).
• ALSA: hda/realtek - update ALC225 depop optimize (bsc#1099810).
• ALSA: hda/realtek: Fix mic and headset jack sense on Asus X705UD (bsc#1099810).
• ALSA: hda/realtek: Limit mic boost on T480 (bsc#1099810).
• ALSA: hda: Fix forget to free resource in error handling code path in hda_codec_driver_probe (bsc#1099810).
• ALSA: hda: add dock and led support for HP EliteBook 830 G5 (bsc#1099810).
• ALSA: hda: add dock and led support for HP ProBook 640 G4 (bsc#1099810).
• ALSA: hda: fix some klockwork scan warnings (bsc#1099810).
• ARM: 8764/1: kgdb: fix NUMREGBYTES so that…

The SUSE Linux Enterprise 15 kernel-azure was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-5390 aka 'SegmentSmack': A remote attacker even with relatively low bandwidth could have caused lots of CPU usage by triggering the worst case scenario during IP and/or TCP fragment reassembly (bsc#1102340)
• CVE-2017-18344: The timer_create syscall implementation didn't properly validate input, which could have lead to out-of-bounds access. This allowed userspace applications to read arbitrary kernel memory in some setups. (bsc#1102851)
• CVE-2018-13406: An integer overflow in the uvesafb_setcmap function could have result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1100418)
• CVE-2018-13053: The alarm_timer_nsleep function had an integer overflow via a large relative timeout because ktime_add_safe was not used (bnc#1099924)
• CVE-2018-13405: The inode_init_owner function allowed local users to create files with an unintended group ownership allowing attackers to escalate privileges by making a plain file executable and SGID (bnc#1100416)
• CVE-2017-5753: Systems with microprocessors utilizing speculative execution and branch prediction may have allowed unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (bsc#1068032)
• CVE-2018-1118: Linux kernel vhost did not properly initialize memory in messages passed between virtual guests and the host operating system. This could have allowed local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file (bsc#1092472)

The following non-security bugs were fixed:

• 1wire: family module autoload fails because of upper/lower case mismatch (bsc#1051510)
• 8139too: Use disable_irq_nosync() in rtl8139_poll_controller() (networking-stable-18_05_15)
• acpi / LPSS: Add missing prv_offset setting for byt/cht PWM devices (bsc#1051510)
• acpi / processor: Finish making acpi_processor_ppc_has_changed() void (bsc#1051510)
• acpi / watchdog: properly initialize resources (bsc#1051510)
• acpi, APEI, EINJ: Subtract any matching Register Region from Trigger resources (bsc#1051510)
• acpi, nfit: Fix scrub idle detection (bsc#1094119)
• acpi/nfit: fix cmd_rc for acpi_nfit_ctl to always return a value (bsc#1051510)
• acpi: Add helper for deactivating memory region (bsc#1100132)
• ahci: Disable LPM on Lenovo 50 series laptops with a too old BIOS (bsc#1051510)
• alsa: hda - Handle pm failure during hotplug (bsc#1051510)
• alsa: hda/ca0132 - use ARRAY_SIZE (bsc#1051510)
• alsa: hda/ca0132: Delete pointless assignments to struct auto_pin_cfg fields (bsc#1051510)
• alsa: hda/ca0132: Delete redundant UNSOL event requests (bsc#1051510)
• alsa: hda/ca0132: Do not test for QUIRK_NONE (bsc#1051510)
• alsa: hda/ca0132: Fix DMic data rate for Alienware M17x R4 (bsc#1051510)
• alsa: hda/ca0132: Restore PCM Analog Mic-In2 (bsc#1051510)
• alsa: hda/ca0132: Restore behavior of QUIRK_ALIENWARE (bsc#1051510)
• alsa: hda/ca0132: make array ca0132_alt_chmaps static (bsc#1051510)
• alsa: hda/realtek - Add Panasonic CF-SZ6 headset jack quirk (bsc#1051510)
• alsa: hda/realtek - Add a quirk for FSC ESPRIMO U9210 (bsc#1051510)
• alsa: hda/realtek - Fix pop noise on Lenovo P50 and co (bsc#1051510)
• alsa: hda/realtek - Fix the problem of two front mics on more machines (bsc#1051510)
• alsa: hda/realtek - Yet another Clevo P950 quirk entry (bsc#1101143)
• alsa: hda/realtek - two more lenovo models need fixup of MIC_LOCATION (bsc#1051510)
• alsa: hda: add mute led support for HP ProBook 455 G5 (bsc#1051510)
• alsa: rawmidi: Change resized buffers atomically (bsc#1051510)
• alsa: seq: Fix UBSAN warning at SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT ioctl (bsc#1051510)
• alsa: timer: Fix UBSAN warning at SNDRV_TIMER_IOCTL_NEXT_DEVICE ioctl (bsc#1051510)
• alx: take rtnl before calling __alx_open…

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

The following security bugs were fixed:

• CVE-2018-3620: Local attackers on baremetal systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data. (bnc#1087081).
• CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system. (bnc#1089343).
• CVE-2018-1000204: A malformed SG_IO ioctl issued for a SCSI device could lead to a local kernel information leak manifesting in up to approximately 1000 memory pages copied to the userspace. The problem has limited scope as non-privileged users usually have no permissions to access SCSI device files. (bnc#1096728).
• CVE-2018-13053: The alarm_timer_nsleep function in kernel/time/alarmtimer.c had an integer overflow via a large relative timeout because ktime_add_safe is not used (bnc#1099924).
• CVE-2018-13406: An integer overflow in the uvesafb_setcmap function in drivers/video/fbdev/uvesafb.c could result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1098016 bnc#1100418).
• CVE-2016-8405: An information disclosure vulnerability in kernel components including the ION subsystem, Binder, USB driver and networking subsystem could enable a local malicious application to access data outside of its permission levels. (bnc#1099942).
• CVE-2018-5814: Multiple race condition errors when handling probe, disconnect, and rebind operations could be exploited to trigger a use-after-free condition or a NULL pointer dereference by sending multiple USB over IP packets (bnc#1096480).
• CVE-2018-12233: In the ea_get function in fs/jfs/xattr.c a memory corruption bug in JFS can be triggered by calling setxattr twice with two different extended attribute names on the same file. This vulnerability can be triggered by an unprivileged user with the ability to create files and execute programs. (bnc#1097234).
• CVE-2017-13305: A information disclosure vulnerability in the Upstream kernel encrypted-keys. (bnc#1094353).
• CVE-2018-1130: A null pointer dereference in dccp_write_xmit() function in net/dccp/output.c allowed a local user to cause a denial of service by a number of certain crafted system calls (bnc#1092904).
• CVE-2018-1068: A flaw was found in the implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory (bnc#1085107).
• CVE-2018-5803: An error in the '_sctp_make_chunk()' function (net/sctp/sm_make_chunk.c) when handling SCTP packets length could be exploited to cause a kernel crash (bnc#1083900).
• CVE-2018-7492: A NULL pointer dereference was found in the net/rds/rdma.c __rds_rdma_map() function allowed local attackers to cause a system panic and a denial-of-service, related to RDS_GET_MR and RDS_GET_MR_FOR_DEST (bnc#1082962).

The following non-security bugs were fixed:

• cpu/hotplug: Add sysfs state interface (bsc#1089343).
• cpu/hotplug: Provide knobs to control SMT (bsc#1089343).
• cpu/hotplug: Split do_cpu_down() (bsc#1089343).
• disable-prot_none_mitigation.patch: disable prot_none native mitigation (bnc#1104684)
• fix pgd underflow (bnc#1104475) custom walk_page_range rework was incorrect and could underflow pgd if the given range was below a first vma.
• slab: introduce kmalloc_array() (bsc#909361).
• x86/apic: Ignore secondary threads if nosmt=force (bsc#1089343).
• x86/cpu/AMD: Do not check CPUID max ext level before parsing SMP info (bsc#1089343).
• x86/cpu/AMD: Evaluate smp_num_siblings early (bsc#1089343).
• x86/cpu/AMD: Move TOPOEXT reenablement before…

The SUSE Linux Enterprise 12 SP2 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-3620: Local attackers on baremetal systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data. (bnc#1087081).
• CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system. (bnc#1089343).
• CVE-2018-5390 aka 'SegmentSmack': The Linux Kernel can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service (bnc#1102340).
• CVE-2018-5391 aka 'FragmentSmack': A flaw in the IP packet reassembly could be used by remote attackers to consume lots of CPU time (bnc#1103097).
• CVE-2018-14734: drivers/infiniband/core/ucma.c allowed ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allowed attackers to cause a denial of service (use-after-free) (bnc#1103119).
• CVE-2017-18344: The timer_create syscall implementation in kernel/time/posix-timers.c didn't properly validate the sigevent->sigev_notify field, which leads to out-of-bounds access in the show_timer function (called when /proc/$PID/timers is read). This allowed userspace applications to read arbitrary kernel memory (on a kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE) (bnc#1102851 bnc#1103580).
• CVE-2018-9385: When printing the 'driver_override' option from with-in the amba driver, a very long line could expose one additional uninitialized byte (bnc#1100491).
• CVE-2018-13053: The alarm_timer_nsleep function in kernel/time/alarmtimer.c had an integer overflow via a large relative timeout because ktime_add_safe is not used (bnc#1099924).
• CVE-2018-13405: The inode_init_owner function in fs/inode.c allowed local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID (bnc#1100416).
• CVE-2018-13406: An integer overflow in the uvesafb_setcmap function in drivers/video/fbdev/uvesafb.c could result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1098016 1100418).
• CVE-2018-5814: Multiple race condition errors when handling probe, disconnect, and rebind operations could be exploited to trigger a use-after-free condition or a NULL pointer dereference by sending multiple USB over IP packets (bnc#1096480).

The following non-security bugs were fixed:

• Add support for 5,25,50, and 100G to 802.3ad bonding driver (bsc#1096978)
• bcache: add backing_request_endio() for bi_end_io (bsc#1064232).
• bcache: add CACHE_SET_IO_DISABLE to struct cache_set flags (bsc#1064232).
• bcache: add io_disable to struct cached_dev (bsc#1064232).
• bcache: add journal statistic (bsc#1076110).
• bcache: Add __printf annotation to __bch_check_keys() (bsc#1064232).
• bcache: add stop_when_cache_set_failed option to backing device (bsc#1064232).
• bcache: add wait_for_kthread_stop() in bch_allocator_thread() (bsc#1064232).
• bcache: Annotate switch fall-through (bsc#1064232).
• bcache: closures: move control bits one bit right (bsc#1076110).
• bcache: correct flash only vols (check all uuids) (bsc#1064232). -…

The SUSE Linux Enterprise 12 SP2 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-3620: Local attackers on baremetal systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data. (bnc#1087081).
• CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system. (bnc#1089343).
• CVE-2018-5390 aka 'SegmentSmack': The Linux Kernel can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service (bnc#1102340).
• CVE-2018-5391 aka 'FragmentSmack': A flaw in the IP packet reassembly could be used by remote attackers to consume lots of CPU time (bnc#1103097).
• CVE-2018-14734: drivers/infiniband/core/ucma.c allowed ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allowed attackers to cause a denial of service (use-after-free) (bnc#1103119).
• CVE-2017-18344: The timer_create syscall implementation in kernel/time/posix-timers.c didn't properly validate the sigevent->sigev_notify field, which leads to out-of-bounds access in the show_timer function (called when /proc/$PID/timers is read). This allowed userspace applications to read arbitrary kernel memory (on a kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE) (bnc#1102851 bnc#1103580).
• CVE-2018-9385: When printing the 'driver_override' option from with-in the amba driver, a very long line could expose one additional uninitialized byte (bnc#1100491).
• CVE-2018-13053: The alarm_timer_nsleep function in kernel/time/alarmtimer.c had an integer overflow via a large relative timeout because ktime_add_safe is not used (bnc#1099924).
• CVE-2018-13405: The inode_init_owner function in fs/inode.c allowed local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID (bnc#1100416).
• CVE-2018-13406: An integer overflow in the uvesafb_setcmap function in drivers/video/fbdev/uvesafb.c could result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1098016 1100418).
• CVE-2018-5814: Multiple race condition errors when handling probe, disconnect, and rebind operations could be exploited to trigger a use-after-free condition or a NULL pointer dereference by sending multiple USB over IP packets (bnc#1096480).

The following non-security bugs were fixed:

• Add support for 5,25,50, and 100G to 802.3ad bonding driver (bsc#1096978)
• bcache: add backing_request_endio() for bi_end_io (bsc#1064232).
• bcache: add CACHE_SET_IO_DISABLE to struct cache_set flags (bsc#1064232).
• bcache: add io_disable to struct cached_dev (bsc#1064232).
• bcache: add journal statistic (bsc#1076110).
• bcache: Add __printf annotation to __bch_check_keys() (bsc#1064232).
• bcache: add stop_when_cache_set_failed option to backing device (bsc#1064232).
• bcache: add wait_for_kthread_stop() in bch_allocator_thread() (bsc#1064232).
• bcache: Annotate switch fall-through (bsc#1064232).
• bcache: closures: move control bits one bit right (bsc#1076110).
• bcache: correct flash only vols (check all uuids) (bsc#1064232). -…

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

The following security bugs were fixed:

• CVE-2018-13053: The alarm_timer_nsleep function in kernel/time/alarmtimer.c had an integer overflow via a large relative timeout because ktime_add_safe is not used (bnc#1099924).
• CVE-2018-13405: The inode_init_owner function in fs/inode.c allowed local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID (bnc#1100416).
• CVE-2018-13406: An integer overflow in the uvesafb_setcmap function in drivers/video/fbdev/uvesafb.c could result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1098016 bnc#1100418).
• CVE-2018-14734: drivers/infiniband/core/ucma.c allowed ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allowed attackers to cause a denial of service (use-after-free) (bnc#1103119).
• CVE-2018-3620: Local attackers on baremetal systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data. (bnc#1087081).
• CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system. (bnc#1089343).

The following non-security bugs were fixed:

• bcache: Add __printf annotation to __bch_check_keys() (bsc#1064232).
• bcache: Annotate switch fall-through (bsc#1064232).
• bcache: Fix a compiler warning in bcache_device_init() (bsc#1064232).
• bcache: Fix indentation (bsc#1064232).
• bcache: Fix kernel-doc warnings (bsc#1064232).
• bcache: Fix, improve efficiency of closure_sync() (bsc#1064232).
• bcache: Reduce the number of sparse complaints about lock imbalances (bsc#1064232).
• bcache: Remove an unused variable (bsc#1064232).
• bcache: Suppress more warnings about set-but-not-used variables (bsc#1064232).
• bcache: Use PTR_ERR_OR_ZERO() (bsc#1064232).
• bcache: add CACHE_SET_IO_DISABLE to struct cache_set flags (bsc#1064232).
• bcache: add backing_request_endio() for bi_end_io (bsc#1064232).
• bcache: add io_disable to struct cached_dev (bsc#1064232).
• bcache: add journal statistic (bsc#1064232).
• bcache: add stop_when_cache_set_failed option to backing device (bsc#1064232).
• bcache: add wait_for_kthread_stop() in bch_allocator_thread() (bsc#1064232).
• bcache: closures: move control bits one bit right (bsc#1064232).
• bcache: correct flash only vols (check all uuids) (bsc#1064232).
• bcache: count backing device I/O error for writeback I/O (bsc#1064232).
• bcache: do not attach backing with duplicate UUID (bsc#1064232).
• bcache: fix cached_dev->count usage for bch_cache_set_error() (bsc#1064232).
• bcache: fix crashes in duplicate cache device register (bsc#1064232).
• bcache: fix error return value in memory shrink (bsc#1064232).
• bcache: fix for allocator and register thread race (bsc#1064232).
• bcache: fix for data collapse after re-attaching an attached device (bsc#1064232).
• bcache: fix high CPU occupancy during journal (bsc#1064232).
• bcache: fix incorrect sysfs output value of strip size (bsc#1064232).
• bcache: fix kcrashes with fio in RAID5 backend dev (bsc#1064232).
• bcache: fix misleading error message in bch_count_io_errors() (bsc#1064232). -…

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

The following security bugs were fixed:

• CVE-2016-8405: An information disclosure vulnerability in kernel components including the ION subsystem, Binder, USB driver and networking subsystem could enable a local malicious application to access data outside of its permission levels. (bnc#1099942).
• CVE-2017-13305: A information disclosure vulnerability existed in the encrypted-keys handling. (bnc#1094353).
• CVE-2018-1000204: A malformed SG_IO ioctl issued for a SCSI device could lead to a local kernel information leak manifesting in up to approximately 1000 memory pages copied to the userspace. The problem has limited scope as non-privileged users usually have no permissions to access SCSI device files. (bnc#1096728).
• CVE-2018-1068: A flaw was found in the implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory (bnc#1085107).
• CVE-2018-1130: A null pointer dereference in dccp_write_xmit() function in net/dccp/output.c allowed a local user to cause a denial of service by a number of certain crafted system calls (bnc#1092904).
• CVE-2018-12233: In the ea_get function in fs/jfs/xattr.c a memory corruption bug in JFS can be triggered by calling setxattr twice with two different extended attribute names on the same file. This vulnerability can be triggered by an unprivileged user with the ability to create files and execute programs. A kmalloc call is incorrect, leading to slab-out-of-bounds in jfs_xattr (bnc#1097234).
• CVE-2018-13053: The alarm_timer_nsleep function in kernel/time/alarmtimer.c had an integer overflow via a large relative timeout because ktime_add_safe is not used (bnc#1099924).
• CVE-2018-13406: An integer overflow in the uvesafb_setcmap function in drivers/video/fbdev/uvesafb.c kernel could result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1098016 1100418).
• CVE-2018-3620: Local attackers on baremetal systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data. (bnc#1087081).
• CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system. (bnc#1089343).
• CVE-2018-5803: An error in the '_sctp_make_chunk()' function (net/sctp/sm_make_chunk.c) when handling SCTP packets length could be exploited to cause a kernel crash (bnc#1083900).
• CVE-2018-5814: Multiple race condition errors when handling probe, disconnect, and rebind operations could be exploited to trigger a use-after-free condition or a NULL pointer dereference by sending multiple USB over IP packets (bnc#1096480).
• CVE-2018-7492: A NULL pointer dereference was found in the net/rds/rdma.c __rds_rdma_map() function allowing local attackers to cause a system panic and a denial-of-service, related to RDS_GET_MR and RDS_GET_MR_FOR_DEST (bnc#1082962).

The following non-security bugs were fixed:

• cpu/hotplug: Add sysfs state interface (bsc#1089343).
• cpu/hotplug: Provide knobs to control SMT (bsc#1089343).
• cpu/hotplug: Provide knobs to control SMT (bsc#1089343).
• cpu/hotplug: Split do_cpu_down() (bsc#1089343).
• disable-prot_none_mitigation.patch: disable prot_none native mitigation (bnc#1104684)
• fix pgd underflow (bnc#1104475) custom walk_page_range rework was incorrect and could underflow pgd if the given range was below a first vma.
• slab: introduce kmalloc_array() (bsc#909361).
• x86/apic: Ignore secondary threads if nosmt=force (bsc#1089343).
• x86/CPU/AMD: Do not check CPUID max ext level before…

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

The following security bugs were fixed:

• CVE-2018-3620: Local attackers on baremetal systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data. (bnc#1087081).
• CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system. (bnc#1089343).
• CVE-2018-14734: drivers/infiniband/core/ucma.c allowed ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allowed attackers to cause a denial of service (use-after-free) (bnc#1103119).
• CVE-2018-13053: The alarm_timer_nsleep function in kernel/time/alarmtimer.c had via a large relative timeout because ktime_add_safe is not used (bnc#1099924).
• CVE-2018-13405: The inode_init_owner function in fs/inode.c allowed local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID (bnc#1100416).
• CVE-2018-13406: An integer overflow in the uvesafb_setcmap function in drivers/video/fbdev/uvesafb.c could result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1098016 bnc#1100418).

The following non-security bugs were fixed:

• bcache: add backing_request_endio() for bi_end_io (bsc#1064233).
• bcache: add CACHE_SET_IO_DISABLE to struct cache_set flags (bsc#1064233).
• bcache: add io_disable to struct cached_dev (bsc#1064233).
• bcache: add journal statistic (bsc#1076110).
• bcache: Add __printf annotation to __bch_check_keys() (bsc#1076110).
• bcache: add stop_when_cache_set_failed option to backing device (bsc#1064233).
• bcache: add wait_for_kthread_stop() in bch_allocator_thread() (bsc#1064233).
• bcache: Annotate switch fall-through (bsc#1076110).
• bcache: closures: move control bits one bit right (bsc#1076110).
• bcache: correct flash only vols (check all uuids) (bsc#1064233).
• bcache: count backing device I/O error for writeback I/O (bsc#1064233).
• bcache: do not attach backing with duplicate UUID (bsc#1076110).
• bcache: Fix a compiler warning in bcache_device_init() (bsc#1076110).
• bcache: fix cached_dev->count usage for bch_cache_set_error() (bsc#1064233).
• bcache: fix crashes in duplicate cache device register (bsc#1076110).
• bcache: fix error return value in memory shrink (bsc#1076110).
• bcache: fix for allocator and register thread race (bsc#1076110).
• bcache: fix for data collapse after re-attaching an attached device (bsc#1076110).
• bcache: fix high CPU occupancy during journal (bsc#1076110).
• bcache: Fix, improve efficiency of closure_sync() (bsc#1076110).
• bcache: fix incorrect sysfs output value of strip size (bsc#1076110).
• bcache: Fix indentation (bsc#1076110).
• bcache: fix kcrashes with fio in RAID5 backend dev (bsc#1076110).
• bcache: Fix kernel-doc warnings (bsc#1076110).
• bcache: fix misleading error message in bch_count_io_errors() (bsc#1064233).
• bcache: fix using of loop variable in memory shrink (bsc#1076110).
• bcache: fix writeback target calc on large devices (bsc#1076110).
• bcache: fix wrong return value in bch_debug_init() (bsc#1076110).
• bcache: mark closure_sync() __sched (bsc#1076110).
• bcache: move closure debug…

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

The following security bugs were fixed:

• CVE-2016-8405: An information disclosure vulnerability in kernel components including the ION subsystem, Binder, USB driver and networking subsystem could enable a local malicious application to access data outside of its permission levels. (bnc#1099942).
• CVE-2017-13305: A information disclosure vulnerability was fixed in the encrypted-keys handling. (bnc#1094353).
• CVE-2018-1000204: A malformed SG_IO ioctl issued for a SCSI device lead to a local kernel data leak manifesting in up to approximately 1000 memory pages copied to the userspace. The problem has limited scope as non-privileged users usually have no permissions to access SCSI device files. (bnc#1096728).
• CVE-2018-1068: A flaw was found in the implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory (bnc#1085107).
• CVE-2018-1130: Linux kernel was vulnerable to a null pointer dereference in dccp_write_xmit() function in net/dccp/output.c in that allowed a local user to cause a denial of service by a number of certain crafted system calls (bnc#1092904).
• CVE-2018-12233: In the ea_get function in fs/jfs/xattr.c a memory corruption bug in JFS could be triggered by calling setxattr twice with two different extended attribute names on the same file. This vulnerability can be triggered by an unprivileged user with the ability to create files and execute programs. A kmalloc call is incorrect, leading to slab-out-of-bounds in jfs_xattr (bnc#1097234).
• CVE-2018-13053: The alarm_timer_nsleep function in kernel/time/alarmtimer.c had an integer overflow via a large relative timeout because ktime_add_safe is not used (bnc#1099924).
• CVE-2018-13406: An integer overflow in the uvesafb_setcmap function in drivers/video/fbdev/uvesafb.c could result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1098016 bnc#1100418).
• CVE-2018-3620: Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access via a terminal page fault and a side-channel analysis (bnc#1087081).
• CVE-2018-3646: Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis (bnc#1089343 bnc#1104365).
• CVE-2018-5803: An error in the '_sctp_make_chunk()' function (net/sctp/sm_make_chunk.c) when handling SCTP packets length could be exploited to cause a kernel crash (bnc#1083900).
• CVE-2018-5814: Multiple race condition errors when handling probe, disconnect, and rebind operations can be exploited to trigger a use-after-free condition or a NULL pointer dereference by sending multiple USB over IP packets (bnc#1096480).
• CVE-2018-7492: A NULL pointer dereference was found in the net/rds/rdma.c __rds_rdma_map() function allowed local attackers to cause a system panic and a denial-of-service, related to RDS_GET_MR and RDS_GET_MR_FOR_DEST (bnc#1082962).

The following non-security bugs were fixed:

• usb: add USB_DEVICE_INTERFACE_CLASS macro (bsc#1047487).
• usb: hub: fix non-SS hub-descriptor handling (bsc#1047487).
• usb: kobil_sct: fix non-atomic allocation in write path (bsc#1015828).
• usb: serial: ftdi_sio: fix latency-timer error handling (bsc#1037441).
• usb: serial: io_edgeport: fix NULL-deref at open (bsc#1015828).
• usb: serial: io_edgeport: fix possible sleep-in-atomic (bsc#1037441).
• usb: serial: keyspan_pda: fix modem-status error handling (bsc#1100132).
• usb: visor: Match I330 phone more precisely (bsc#1047487).
• cpu/hotplug: Add sysfs state…

Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly ensure that xattr information remained in inode bodies. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10880)

It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053)

Wen Xu discovered that the f2fs filesystem implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious f2fs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13096)

Wen Xu and Po-Ning Tseng discovered that the btrfs filesystem implementation in the Linux kernel did not properly handle relocations in some situations. An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14609)

Wen Xu discovered that the HFS+ filesystem implementation in the Linux kernel did not properly handle malformed catalog data in some situations. An attacker could use this to construct a malicious HFS+ image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14617)

Jann Horn discovered that the procfs file system implementation in the Linux kernel did not properly restrict the ability to inspect the kernel stack of an arbitrary task. A local attacker could use this to expose sensitive information. (CVE-2018-17972)

It was discovered that the KVM implementation in the Linux kernel on ARM 64bit processors did not properly handle some ioctls. An attacker with the privilege to create KVM-based virtual machines could use this to cause a denial of service (host system crash) or execute arbitrary code in the host. (CVE-2018-18021)

USN-3821-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS.

Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly ensure that xattr information remained in inode bodies. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10880)

It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053)

Wen Xu discovered that the f2fs filesystem implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious f2fs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13096)

Wen Xu and Po-Ning Tseng discovered that the btrfs filesystem implementation in the Linux kernel did not properly handle relocations in some situations. An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14609)

Wen Xu discovered that the HFS+ filesystem implementation in the Linux kernel did not properly handle malformed catalog data in some situations. An attacker could use this to construct a malicious HFS+ image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14617)

Jann Horn discovered that the procfs file system implementation in the Linux kernel did not properly restrict the ability to inspect the kernel stack of an arbitrary task. A local attacker could use this to expose sensitive information. (CVE-2018-17972)

It was discovered that the KVM implementation in the Linux kernel on ARM 64bit processors did not properly handle some ioctls. An attacker with the privilege to create KVM-based virtual machines could use this to cause a denial of service (host system crash) or execute arbitrary code in the host. (CVE-2018-18021)

It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053)

Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13093)

Wen Xu discovered that the f2fs file system implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious f2fs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13097, CVE-2018-13099, CVE-2018-13100, CVE-2018-14614, CVE-2018-14616, CVE-2018-13096, CVE-2018-13098, CVE-2018-14615)

Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14613, CVE-2018-14609)

Wen Xu discovered that the HFS+ filesystem implementation in the Linux kernel did not properly handle malformed catalog data in some situations. An attacker could use this to construct a malicious HFS+ image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14617)

Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem of the Linux kernel did not properly initialize new files in some situations. A local attacker could use this to expose sensitive information. (CVE-2018-16862)

Hui Peng and Mathias Payer discovered that the USB subsystem in the Linux kernel did not properly handle size checks when handling an extra USB descriptor. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-20169)

It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel when certain failure conditions occurred. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-20856)

Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux kernel did not properly validate elliptic curve parameters during Diffie-Hellman key exchange in some situations. An attacker could use this to expose sensitive information. (CVE-2018-5383)

It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10126)

Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-1125)

It was discovered that the PowerPC dlpar implementation in the Linux kernel did not properly check for allocation errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-12614)

It was discovered that a NULL pointer dereference vulnerabilty existed in the Near-field communication (NFC) implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2019-12818)

It was discovered that the MDIO bus devices subsystem in the Linux kernel improperly dropped a device reference in an error condition, leading to a use-after-free. An attacker could use this to cause a denial of service (system crash). (CVE-2019-12819)

It was discovered that a NULL pointer dereference vulnerability existed in the Near-field communication (NFC) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-12984)

Jann…

It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053)

Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13093)

Wen Xu discovered that the f2fs file system implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious f2fs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13096, CVE-2018-13097, CVE-2018-13098, CVE-2018-13099, CVE-2018-13100, CVE-2018-14614, CVE-2018-14615, CVE-2018-14616)

Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14609, CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14613)

Wen Xu discovered that the HFS+ filesystem implementation in the Linux kernel did not properly handle malformed catalog data in some situations. An attacker could use this to construct a malicious HFS+ image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14617)

Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem of the Linux kernel did not properly initialize new files in some situations. A local attacker could use this to expose sensitive information. (CVE-2018-16862)

Hui Peng and Mathias Payer discovered that the Option USB High Speed driver in the Linux kernel did not properly validate metadata received from the device. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-19985)

Hui Peng and Mathias Payer discovered that the USB subsystem in the Linux kernel did not properly handle size checks when handling an extra USB descriptor. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-20169)

Zhipeng Xie discovered that an infinite loop could be triggered in the CFS Linux kernel process scheduler. A local attacker could possibly use this to cause a denial of service. (CVE-2018-20784)

It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel when certain failure conditions occurred. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-20856)

Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux kernel did not properly validate elliptic curve parameters during Diffie-Hellman key exchange in some situations. An attacker could use this to expose sensitive information. (CVE-2018-5383)

It was discovered that the Intel Wi-Fi device driver in the Linux kernel did not properly validate certain Tunneled Direct Link Setup (TDLS). A physically proximate attacker could use this to cause a denial of service (Wi-Fi disconnect). (CVE-2019-0136)

It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10126)

It was discovered that the Bluetooth UART implementation in the Linux kernel did not properly check for missing tty operations. A local attacker could use this to cause a denial of service. (CVE-2019-10207)

Amit Klein and Benny Pinkas discovered that the Linux kernel did not sufficiently randomize IP ID values generated for connectionless networking protocols. A remote attacker could use this to track particular Linux devices. (CVE-2019-10638)

Amit Klein and Benny Pinkas discovered that…