SUSE-SU-2022:0372-1

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2020-28097: Fixed out-of-bounds read in vgacon subsystem that mishandled software scrollback (bnc#1187723).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/teeshm.c in the TEE subsystem, that could have occured because of a race condition in teeshmgetfrom_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2022-0322: Fixed SCTP issue with account stream padding length for reconf chunk (bsc#1194985).
• CVE-2021-4135: Fixed zero-initialize memory inside netdevsim for new map's value in function nsimbpfmap_alloc (bsc#1193927).
• CVE-2022-22942: Fixed stale file descriptors on failed usercopy (bsc#1195065).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcdehdeviceresethandler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadgetdevdescUDCshow of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerceregto_size (bsc#1194227).

The following non-security bugs were fixed:

• KVM: remember position in kvm->vcpus array (bsc#1190973).
• KVM: s390: index kvm->arch.idlemask by vcpuidx (bsc#1190973).
• SUNRPC: Add basic load balancing to the transport switch - kabi fix. (bnc#1192729).
• SUNRPC: Add basic load balancing to the transport switch. (bnc#1192729)
• SUNRPC: Fix initialisation of struct rpcxprtswitch (bnc#1192729).
• SUNRPC: Optimise transport balancing code (bnc#1192729).
• SUNRPC: Replace division by multiplication in calculation of queue length (bnc#1192729).
• SUNRPC: Skip zero-refcount transports (bnc#1192729).
• USB: serial: option: add Telit FN990 compositions (git-fixes).
• crypto: qat - fix undetected PFVF timeout in ACK loop (git-fixes).
• ext4: set csum seed in tmp inode while migrating to extents (bsc#1195272).
• fget: clarify and improve _fgetfiles() implementation (bsc#1193727).
• hvnetvsc: Set neededheadroom according to VF (bsc#1193507).
• ibmvnic: Allow extra failures before disabling (bsc#1195073 ltc#195713).
• ibmvnic: do not spin in tasklet (bsc#1195073 ltc#195713).
• ibmvnic: init ->runningcapcrqs early (bsc#1195073 ltc#195713).
• ibmvnic: remove unused ->wait_capability (bsc#1195073 ltc#195713).
• kABI fixup after adding vcpuidx to struct kvmcpu (bsc#1190973).
• kabi: mask new member 'empty' of struct Qdisc (bsc#1183405).
• kabi: revert drop of Qdisc::atomic_qlen (bsc#1183405).
• livepatch: Avoid CPU hogging with cond_resched (bsc#1071995).
• memstick: rtsxusbms: fix UAF (bsc#1194516).
• mm/hwpoison: do not lock page again when mehugepage() successfully recovers (bsc#1194814).
• moxart: fix potential use-after-free on remove path (bsc#1194516).
• net, xdp: Introduce xdpinitbuff utility routine (bsc#1193507).
• net, xdp: Introduce xdppreparebuff utility routine (bsc#1193507).
• net/sched: annotate lockless accesses to qdisc->empty (bsc#1183405).
• net/sched: fix race between deactivation and dequeue for NOLOCK qdisc (bsc#1183405).
• net/sched: pfifofast: fix wrong dereference in pfifofast_enqueue (bsc#1183405).
• net/sched: pfifo_fast: fix wrong dereference when qdisc is reset (bsc#1183405).
• net: Using proper atomic helper (bsc#1186222).
• net: allow retransmitting a TCP packet if original is still in queue (bsc#1188605 bsc#1187428).
• net: caif: avoid using qdisc_qlen() (bsc#1183405).
• net: cdc_ncm: Allow for dwNtbOutMaxSize to be unset or zero (git-fixes).
• net: dev: introduce support for sch BYPASS for lockless qdisc (bsc#1183405).
• net: mana: Add RX fencing (bsc#1193507).
• net: mana: Add XDP support (bsc#1193507).
• net: sch_generic: aviod concurrent reset and enqueue op for lockless qdisc (bsc#1183405).
• net: sched: Avoid using yield() in a busy waiting loop (bsc#1183405).
• net: sched: add barrier to ensure correct ordering for lockless qdisc (bsc#1183405).
• net: sched: add empty status flag for NOLOCK qdisc (bsc#1183405).
• net: sched: always do stats accounting according to TCQFCPUSTATS (bsc#1183405).
• net: sched: avoid unnecessary seqcount operation for lockless qdisc (bsc#1183405).
• net: sched: fix packet stuck problem for lockless qdisc (bsc#1183405).
• net: sched: fix tx action reschedule issue with stopped queue (bsc#1183405).
• net: sched: fix tx action rescheduling issue during deactivation (bsc#1183405).
• net: sched: prefer qdiscisempty() over direct qlen access (bsc#1183405).
• net: sched: replaced invalid qdisc tree flush helper in qdisc_replace (bsc#1183405).
• net: sched: when clearing NOLOCK, clear TCQFCPUSTATS, too (bsc#1183405).
• net: tipc: validate domain record count on input (bsc#1195254).
• net: usb: lan78xx: add Allied Telesis AT29M2-AF (git-fixes).
• net_sched: avoid resetting active qdisc for multiple times (bsc#1183405).
• netsched: get rid of unnecessary devqdisc_reset() (bsc#1183405).
• netsched: use qdiscreset() in qdisc_destroy() (bsc#1183405).
• nfs: do not dirty kernel pages read by direct-io (bsc#1194410).
• nvme: add 'iopolicy' module parameter (bsc#1177599 bsc#1193096).
• nvme: return BLKSTSTRANSPORT unless DNR for NVMESCNSNOTREADY (bsc#1163405).
• of: Add cpu node iterator foreachofcpunode() (bsc#1065729).
• of: Add device_type access helper functions (bsc#1065729).
• of: Fix cpu node iterator to not ignore disabled cpu nodes (bsc#1065729).
• of: Fix property name in ofnodegetdevicetype (bsc#1065729).
• of: add node name compare helper functions (bsc#1065729).
• powerpc/perf: Fix data source encodings for L2.1 and L3.1 accesses (bsc#1065729).
• powerpc/prominit: Fix improper check of promgetprop() (bsc#1065729).
• powerpc/pseries/cpuhp: cache node corrections (bsc#1065729).
• powerpc/pseries/cpuhp: delete add/removebycount code (bsc#1065729).
• powerpc/pseries/mobility: ignore ibm, platform-facilities updates (bsc#1065729).
• powerpc/traps: do not enable irqs in _exception (bsc#1065729).
• powerpc: add interruptcondlocalirqenable helper (bsc#1065729).
• s390/cio: make ccwdevicedma_* more robust (bsc#1193242).
• s390/pci: add s390iommuaperture kernel parameter (bsc#1193234).
• s390/pci: move pseudo-MMIO to prevent MIO overlap (bsc#1194965).
• select: Fix indefinitely sleeping task in pollscheduletimeout() (bsc#1194027).
• tpm: Check for integer overflow in tpm2mapresponse_body() (bsc#1082555).
• tpm: add requestlocality before write TPMINT_ENABLE (bsc#1082555).
• tpm: fix potential NULL pointer access in tpmdelchar_device (bsc#1184209 ltc#190917 git-fixes bsc#1193660 ltc#195634).
• tracing/kprobes: 'nmissed' not showed correctly for kretprobe (git-fixes).
• tracing: Fix check for tracepercpubuffer validity in gettracebuf() (git-fixes).
• ucsiccg: Check DEVINT bit only when starting CCG4 (git-fixes).
• usb: core: config: fix validation of wMaxPacketValue entries (git-fixes).
• usbnet: fix error return code in usbnet_probe() (git-fixes).
• usbnet: sanity check for maxpacket (git-fixes).
• vfs: check fd has read access in kernelreadfilefromfd() (bsc#1194888).
• virtio: write back FVERSION1 before validate (bsc#1193235).
• x86/platform/uv: Add more to secondary CPU kdump info (bsc#1194493).