Security update for the Linux Kernel
| Announcement ID: | SUSE-SU-2022:0371-1 |
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| Rating: | important |
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An update that solves 27 vulnerabilities and has 22 security fixes can now be installed.
Description:
The SUSE Linux Enterprise 12 SP4 LTSS 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-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-2021-45486: Fixed information leak inside the IPv4 implementation caused by very small hash table (bnc#1194087).
- CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
- 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-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bnc#1192847)
- CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
- CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
- CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
- CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227).
- CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
- 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-2021-4002: Fixed a missing TLB flush that could lead to leak or corruption of data in hugetlbfs. (bsc#1192946)
- 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-2021-3564: 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-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
- CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
- CVE-2021-28714: Fixed issue with xen/netback to add rx queue stall detection (XSA-392) (bsc#1193442).
- CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen 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-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
- 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-2021-0920: Fixed use after free bug due to a race condition in unix_scm_to_skb of af_unix.c. This could have led to local escalation of privilege with System execution privileges needed (bnc#1193731).
- CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device. (bsc#1179599)
- CVE-2019-15126: Fixed a vulnerability in Broadcom and Cypress Wi-Fi chips, used in RPi family of devices aka "Kr00k". (bsc#1167162)
- 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).
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).
- 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#1193507).
- hv_netvsc: Set needed_headroom according to VF (bsc#1193507).
- kernel-*-subpackage: Add dependency on kernel scriptlets (bsc#1192740).
- 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 sign kernel when no key provided (bsc#1187167).
- kernel-binary.spec: Fix kernel-default-base scriptlets after packaging merge.
- kernel-binary.spec: suse-kernel-rpm-scriptlets required for uninstall as well (bsc#1189841).
- 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: mana: Add RX fencing (bsc#1193507).
- net: mana: Add XDP support (bsc#1193507).
- net: mana: Allow setting the number of queues while the NIC is down (bsc#1193507).
- net: mana: Fix spelling mistake "calledd" -> "called" (bsc#1193507).
- net: mana: Fix the netdev_err()'s vPort argument in mana_init_port() (bsc#1193507).
- net: mana: Improve the HWC error handling (bsc#1193507).
- net: mana: Support hibernation and kexec (bsc#1193507).
- net: mana: Use kcalloc() instead of kzalloc() (bsc#1193507).
- 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/kernel-source.rpmlintrc: ignore new include/config files In 5.13, since 0e0345b77ac4, config files have no longer .h suffix. Adapt the zero-length check. Based on Martin Liska's change.
- rpm/kernel-source.spec.in: do some more for vanilla_only Make sure: * sources are NOT executable * env is not used as interpreter * timestamps are correct We do all this for normal kernel builds, but not for vanilla_only kernels (linux-next and vanilla).
- 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).
- watchdog: iTCO_wdt: Export vendorsupport (bsc#1177101).
- watchdog: iTCO_wdt: Make ICH_RES_IO_SMI optional (bsc#1177101).
- 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).
Special Instructions and Notes:
- Please reboot the system after installing this update.
Patch Instructions:
To install this SUSE update use the SUSE recommended
installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
-
SUSE OpenStack Cloud 9
zypper in -t patch SUSE-OpenStack-Cloud-9-2022-371=1 -
SUSE OpenStack Cloud Crowbar 9
zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2022-371=1