Security update for the Linux Kernel

The SUSE Linux Enterprise 15 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-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867). - CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler 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 gadget_dev_desc_UDC_show 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-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767). - CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880). - CVE-2022-0322: Fixed SCTP issue with account stream padding length for reconf chunk (bsc#1194985). - 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-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001). - CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c (bnc#1194087). - CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1193731). - CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440). - CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440). - CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440). - CVE-2021-28714: Fixed issue with xen/netback to handle rx queue stall detection (XSA-392) (bsc#1193442). - CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442). - CVE-2018-25020: Fixed an overflow in the BPF subsystem due to a mishandling of a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions. This affects kernel/bpf/core.c and net/core/filter.c (bnc#1193575). - CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032). - CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device (bsc#1179599). - CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946). - CVE-2021-43975: hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allowed an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value (bnc#1192845). - CVE-2021-33098: Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may have allowed an authenticated user to potentially enable denial of service via local access (bnc#1192877). - CVE-2021-43976: mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c allowed an attacker (who can connect a crafted USB device) to cause a denial of service (skb_over_panic) (bnc#1192847). - CVE-2019-15126: Fixed a vulnerability in Broadcom and Cypress Wi-Fi chips, used in RPi family of devices aka 'Kr00k' (bsc#1167162). - CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227). The following non-security bugs were fixed: - Bluetooth: fix the erroneous flush_work() order (git-fixes). - Build: Add obsolete_rebuilds_subpackage (boo#1172073 bsc#1191731). - ICMPv6: Add ICMPv6 Parameter Problem, code 3 definition (bsc#1191241). - IPv6: reply ICMP error if the first fragment do not include all headers (bsc#1191241 bsc#1195166). - elfcore: fix building with clang (bsc#1169514). - fget: clarify and improve __fget_files() implementation (bsc#1193727). - hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit() (bsc#1193506). - hv_netvsc: Set needed_headroom according to VF (bsc#1193506). - ipv6/netfilter: Discard first fragment not including all headers (bsc#1191241 bsc#1195166). - kernel-*-subpackage: Add dependency on kernel scriptlets (bsc#1192740). - kernel-binary.spec.in: add zstd to BuildRequires if used - kernel-binary.spec.in: make sure zstd is supported by kmod if used - kernel-binary.spec: Check for no kernel signing certificates. Also remove unused variable. - kernel-binary.spec: Define $image as rpm macro (bsc#1189841). - kernel-binary.spec: Do not fail silently when KMP is empty (bsc#1190358). - kernel-binary.spec: Do not sign kernel when no key provided (bsc#1187167). - kernel-binary.spec: Fix kernel-default-base scriptlets after packaging merge. - kernel-binary.spec: Require dwarves for kernel-binary-devel when BTF is enabled (jsc#SLE-17288). - kernel-binary.spec: suse-kernel-rpm-scriptlets required for uninstall as well. - kernel-cert-subpackage: Fix certificate location in scriptlets (bsc#1189841). - kernel-source.spec: install-kernel-tools also required on 15.4 - kernel-spec-macros: Since rpm 4.17 %verbose is unusable (bsc#1191229). - kprobes: Limit max data_size of the kretprobe instances (bsc#1193669). - livepatch: Avoid CPU hogging with cond_resched (bsc#1071995). - memstick: rtsx_usb_ms: fix UAF (bsc#1194516). - moxart: fix potential use-after-free on remove path (bsc#1194516). - net: Using proper atomic helper (bsc#1186222). - net: ipv6: Discard next-hop MTU less than minimum link MTU (bsc#1191241 bsc#1195166). - net: mana: Add RX fencing (bsc#1193506). - net: mana: Add XDP support (bsc#1193506). - net: mana: Allow setting the number of queues while the NIC is down (bsc#1193506). - net: mana: Fix spelling mistake 'calledd' -> 'called' (bsc#1193506). - net: mana: Fix the netdev_err()'s vPort argument in mana_init_port() (bsc#1193506). - net: mana: Improve the HWC error handling (bsc#1193506). - net: mana: Support hibernation and kexec (bsc#1193506). - net: mana: Use kcalloc() instead of kzalloc() (bsc#1193506). - objtool: Support Clang non-section symbols in ORC generation (bsc#1169514). - post.sh: detect /usr mountpoint too - recordmcount.pl: fix typo in s390 mcount regex (bsc#1192267). - recordmcount.pl: look for jgnop instruction as well as bcrl on s390 (bsc#1192267). - rpm/kernel-binary.spec.in: Use kmod-zstd provide. This makes it possible to use kmod with ZSTD support on non-Tumbleweed. - rpm/kernel-binary.spec.in: avoid conflicting suse-release suse-release had arbitrary values in staging, we can't use it for dependencies. The filesystem one has to be enough (boo#1184804). - rpm/kernel-binary.spec.in: do not strip vmlinux again (bsc#1193306) After usrmerge, vmlinux file is not named vmlinux-<version>, but simply vmlinux. And this is not reflected in STRIP_KEEP_SYMTAB we set. So fix this by removing the dash... - rpm/kernel-binary.spec: Use only non-empty certificates. - rpm/kernel-obs-build.spec.in: make builds reproducible (bsc#1189305) - rpm: fix kmp install path - rpm: fixup support gz and zst compression methods (bsc#1190428, bsc#1190358). - rpm: use _rpmmacrodir (boo#1191384) - tty: hvc: replace BUG_ON() with negative return value (git-fixes). - vfs: check fd has read access in kernel_read_file_from_fd() (bsc#1194888). - x86/xen: Mark cpu_bringup_and_idle() as dead_end_function (bsc#1169514). - xen/blkfront: do not take local copy of a request from the ring page (git-fixes). - xen/blkfront: do not trust the backend response data blindly (git-fixes). - xen/blkfront: read response from backend only once (git-fixes). - xen/netfront: disentangle tx_skb_freelist (git-fixes). - xen/netfront: do not read data from request on the ring page (git-fixes). - xen/netfront: do not trust the backend response data blindly (git-fixes). - xen/netfront: read response from backend only once (git-fixes). - xen: sync include/xen/interface/io/ring.h with Xen's newest version (git-fixes). - xfrm: fix MTU regression (bsc#1185377, bsc#1194048).