Security update for the Linux Kernel (important)


An update that solves 16 vulnerabilities, contains one feature and has 15 fixes is now available. Description: The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2022-36946: Fixed an incorrect packet trucation operation which could lead to denial of service (bnc#1201940). - CVE-2022-29581: Fixed improper update of reference count in net/sched that could cause root privilege escalation (bnc#1199665). - CVE-2022-20166: Fixed several possible memory safety issues due to unsafe operations (bsc#1200598). - CVE-2020-36558: Fixed a race condition involving VT_RESIZEX which could lead to a NULL pointer dereference and general protection fault (bnc#1200910). - CVE-2020-36557: Fixed a race condition between the VT_DISALLOCATE ioctl and closing/opening of TTYs that could lead to a use-after-free (bnc#1201429). - CVE-2021-33655: Fixed an out of bounds write by ioctl cmd FBIOPUT_VSCREENINFO (bnc#1201635). - CVE-2021-33656: Fixed an out of bounds write related to ioctl cmd PIO_FONT (bnc#1201636). - CVE-2022-21505: Fixed a kernel lockdown bypass via IMA policy (bsc#1201458). - CVE-2022-1462: Fixed an out-of-bounds read flaw in the TTY subsystem (bnc#1198829). - CVE-2022-1116: Fixed an integer overflow vulnerability in io_uring which allowed a local attacker to escalate privileges to root (bnc#1199647).- CVE-2022-2318: Fixed a use-after-free vulnerability in the timer handler in Rose subsystem that allowed unprivileged attackers to crash the system (bsc#1201251). - CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762). The following non-security bugs were fixed: - Fixed a system crash related to the recent RETBLEED mitigation (bsc#1201644, bsc#1201664, bsc#1201672, bsc#1201673, bsc#1201676). - qla2xxx: drop patch which prevented nvme port discovery (bsc#1200651 bsc#1200644 bsc#1201954 bsc#1201958). - kvm: emulate: do not adjust size of fastop and setcc subroutines (bsc#1201930). - bpf, cpumap: Remove rcpu pointer from cpu_map_build_skb signature (bsc#1199364). - bpf: enable BPF type format (BTF) (jsc#SLE-24559). - nfs: avoid NULL pointer dereference when there is unflushed data (bsc#1201196). - hv_netvsc: Add (more) validation for untrusted Hyper-V values (bsc#1199364). - hv_netvsc: Add comment of netvsc_xdp_xmit() (bsc#1199364). - hv_netvsc: Add support for XDP_REDIRECT (bsc#1199364). - hv_netvsc: Copy packets sent by Hyper-V out of the receive buffer (bsc#1199364). - hv_netvsc: Fix validation in netvsc_linkstatus_callback() (bsc#1199364). - kvm/emulate: Fix SETcc emulation function offsets with SLS (bsc#1201930). - lkdtm: Disable return thunks in rodata.c (bsc#1178134). - net, xdp: Introduce __xdp_build_skb_from_frame utility routine (bsc#1199364). - net, xdp: Introduce xdp_build_skb_from_frame utility routine (bsc#1199364). - nvme: consider also host_iface when checking ip options (bsc#1199670). - powerpc/mobility: wait for memory transfer to complete (bsc#1201846 ltc#198761). - powerpc/pseries/mobility: set NMI watchdog factor during an LPM (bsc#1201846 ltc#198761). - powerpc/watchdog: introduce a NMI watchdog's factor (bsc#1201846 ltc#198761). - scsi: lpfc: Copyright updates for patches (bsc#1201956). - scsi: lpfc: Fix attempted FA-PWWN usage after feature disable (bsc#1201956). - scsi: lpfc: Fix lost NVMe paths during LIF bounce stress test (bsc#1201956 bsc#1200521). - scsi: lpfc: Fix possible memory leak when failing to issue CMF WQE (bsc#1201956). - scsi: lpfc: Fix uninitialized cqe field in lpfc_nvme_cancel_iocb() (bsc#1201956). - scsi: lpfc: Prevent buffer overflow crashes in debugfs with malformed user input (bsc#1201956). - scsi: lpfc: Refactor lpfc_nvmet_prep_abort_wqe() into lpfc_sli_prep_abort_xri() (bsc#1201956). - scsi: lpfc: Remove Menlo/Hornet related code (bsc#1201956). - scsi: lpfc: Remove extra atomic_inc on cmd_pending in queuecommand after VMID (bsc#1201956). - scsi: lpfc: Revert RSCN_MEMENTO workaround for misbehaved configuration (bsc#1201956). - scsi: lpfc: Set PU field when providing D_ID in XMIT_ELS_RSP64_CX iocb (bsc#1201956). - scsi: lpfc: Update lpfc version to (bsc#1201956). - scsi: qla2xxx: Check correct variable in qla24xx_async_gffid() (bsc#1201958). - scsi: qla2xxx: Fix discovery issues in FC-AL topology (bsc#1201958). - scsi: qla2xxx: Fix imbalance vha->vref_count (bsc#1201958). - scsi: qla2xxx: Fix incorrect display of max frame size (bsc#1201958). - scsi: qla2xxx: Fix response queue handler reading stale packets (bsc#1201958). - scsi: qla2xxx: Fix sparse warning for dport_data (bsc#1201958). - scsi: qla2xxx: Update manufacturer details (bsc#1201958). - scsi: qla2xxx: Update version to (bsc#1201958). - scsi: qla2xxx: Zero undefined mailbox IN registers (bsc#1201958). - scsi: qla2xxx: edif: Fix dropped IKE message (bsc#1201958). - watchdog: export lockup_detector_reconfigure (bsc#1201846 ltc#198761). - x86/bugs: Remove apostrophe typo (bsc#1178134). - x86/entry: Remove skip_r11rcx (bsc#1201644). - x86/retbleed: Add fine grained Kconfig knobs (bsc#1178134). - xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue (bsc#1201381). Special Instructions and Notes: Please reboot the system after installing this update. Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - openSUSE Leap 15.3: zypper in -t patch openSUSE-SLE-15.3-2022-2741=1 - SUSE Linux Enterprise Module for Public Cloud 15-SP3: zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP3-2022-2741=1

Affected Package

OS OS Version Package Name Package Version
openSUSE Leap 15.3 - openSUSE Leap 15.3 (noarch):
openSUSE Leap 15.3 - openSUSE Leap 15.3 (x86_64):
SUSE Linux Enterprise Module for Public Cloud 15 SP3 SUSE Linux Enterprise Module for Public Cloud 15-SP3 (x86_64):
SUSE Linux Enterprise Module for Public Cloud 15 SP3 SUSE Linux Enterprise Module for Public Cloud 15-SP3 (noarch):