🛡️ SUSE-SU-2021:3206-1 — kernel-default (CVE-2018-9517 +15 more)

Security update for the Linux Kernel

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-9517: Fixed possible memory corruption due to a use after free in pppol2tp_connect (bsc#1108488).
• CVE-2019-3874: Fixed possible denial of service attack via SCTP socket buffer used by a userspace applications (bnc#1129898).
• CVE-2019-3900: Fixed an infinite loop issue while handling incoming packets in handle_rx() (bnc#1133374).
• CVE-2021-3640: Fixed a Use-After-Free vulnerability in function sco_sock_sendmsg() in the bluetooth stack (bsc#1188172).
• CVE-2021-3653: Missing validation of the int_ctl VMCB field and allows a malicious L1 guest to enable AVIC support for the L2 guest. (bsc#1189399).
• CVE-2021-3656: Missing validation of the the virt_ext VMCB field and allows a malicious L1 guest to disable both VMLOAD/VMSAVE intercepts and VLS for the L2 guest (bsc#1189400).
• CVE-2021-3679: A lack of CPU resource in tracing module functionality was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service (bnc#1189057).
• CVE-2021-3732: Mounting overlayfs inside an unprivileged user namespace can reveal files (bsc#1189706).
• CVE-2021-3753: Fixed race out-of-bounds in virtual terminal handling (bsc#1190025).
• CVE-2021-3759: Unaccounted ipc objects in Linux kernel could have lead to breaking memcg limits and DoS attacks (bsc#1190115).
• CVE-2021-38160: Data corruption or loss could be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size in drivers/char/virtio_console.c (bsc#1190117)
• CVE-2021-38198: arch/x86/kvm/mmu/paging_tmpl.h incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault (bnc#1189262).
• CVE-2021-38204: drivers/usb/host/max3421-hcd.c allowed physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain situations (bnc#1189291).
• CVE-2021-34556: Fixed side-channel attack via a Speculative Store Bypass via unprivileged BPF program that could have obtain sensitive information from kernel memory (bsc#1188983).
• CVE-2021-35477: Fixed BPF stack frame pointer which could have been abused to disclose content of arbitrary kernel memory (bsc#1188985).
• CVE-2020-12770: Fixed sg_remove_request call in a certain failure cases (bsc#1171420).

The following non-security bugs were fixed:

• ACPI: NFIT: Fix support for virtual SPA ranges (git-fixes).
• ALSA: seq: Fix racy deletion of subscriber (git-fixes).
• ASoC: cs42l42: Do not allow SND_SOC_DAIFMT_LEFT_J (git-fixes).
• ASoC: cs42l42: Fix inversion of ADC Notch Switch control (git-fixes).
• ASoC: cs42l42: Remove duplicate control for WNF filter frequency (git-fixes).
• Bluetooth: Move shutdown callback before flushing tx and rx queue (git-fixes).
• Bluetooth: add timeout sanity check to hci_inquiry (git-fixes).
• Bluetooth: fix repeated calls to sco_sock_kill (git-fixes).
• Bluetooth: increase BTNAMSIZ to 21 chars to fix potential buffer overflow (git-fixes).
• Bluetooth: sco: prevent information leak in sco_conn_defer_accept() (git-fixes).
• KVM: SVM: Call SEV Guest Decommission if ASID binding fails (12sp5).
• NFSv4/pNFS: Do not call _nfs4_pnfs_v3_ds_connect multiple times (git-fixes).
• NFSv4: Initialise connection to the server in nfs4_alloc_client() (bsc#1040364).
• PCI/MSI: Correct misleading comments (git-fixes).
• PCI/MSI: Do not set invalid bits in MSI mask (git-fixes).
• PCI/MSI: Enable and mask MSI-X early (git-fixes).
• PCI/MSI: Use msi_mask_irq() in pci_msi_shutdown() (git-fixes).
• PCI: Add Intel VMD devices to pci ids (bsc#1183983).
• PCI: PM: Enable PME if it can be signaled from D3cold (git-fixes).
• PCI: hv: Use expected affinity when unmasking IRQ (bsc#1185973).
• PCI: vmd: Add an additional VMD device id to driver device id table (bsc#1183983).
• PCI: vmd: Add offset to bus numbers if necessary (bsc#1183983).
• PCI: vmd: Assign membar addresses from shadow registers (bsc#1183983).
• PCI: vmd: Filter resource type bits from shadow register (bsc#1183983).
• PCI: vmd: Fix config addressing when using bus offsets (bsc#1183983).
• PCI: vmd: Fix shadow offsets to reflect spec changes (bsc#1183983).
• SUNRPC: Fix the batch tasks count wraparound (git-fixes).
• SUNRPC: Should wake up the privileged task firstly (git-fixes).
• SUNRPC: improve error response to over-size gss credential (bsc#1190022).
• USB: serial: ch341: fix character loss at high transfer rates (git-fixes).
• USB: serial: ftdi_sio: add device ID for Auto-M3 OP-COM v2 (git-fixes).
• USB: serial: option: add Telit FD980 composition 0x1056 (git-fixes).
• USB: usbtmc: Fix RCU stall warning (git-fixes).
• USB:ehci:fix Kunpeng920 ehci hardware problem (git-fixes).
• arch/x86/lib/usercopy_64.c: fix __c