In the Linux kernel, the following vulnerability has been resolved: cfi: Fix __cfi_slowpath_diag RCU usage with cpuidle RCU_NONIDLE usage during __cfi_slowpath_diag can result in an invalid RCU state in the cpuidle code path: WARNING: CPU: 1 PID: 0 at kernel/rcu/tree.c:613 rcu_eqs_enter+0xe4/0x138 ... Call trace: rcu_eqs_enter+0xe4/0x138 rcu_idle_enter+0xa8/0x100 cpuidle_enter_state+0x154/0x3a8 cpuidle_enter+0x3c/0x58 do_idle.llvm.6590768638138871020+0x1f4/0x2ec cpu_startup_entry+0x28/0x2c secondary_start_kernel+0x1b8/0x220 __secondary_switched+0x94/0x98 Instead, call rcu_irq_enter/exit to wake up RCU only when needed and disable interrupts for the entire CFI shadow/module check when we do.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In the Linux kernel, the following vulnerability has been resolved: cfi: Fix __cfi_slowpath_diag RCU usage     with cpuidle RCU_NONIDLE usage during __cfi_slowpath_diag can result in an invalid RCU state in the     cpuidle code path: WARNING: CPU: 1 PID: 0 at kernel/rcu/tree.c:613 rcu_eqs_enter+0xe4/0x138 ... Call     trace: rcu_eqs_enter+0xe4/0x138 rcu_idle_enter+0xa8/0x100 cpuidle_enter_state+0x154/0x3a8     cpuidle_enter+0x3c/0x58 do_idle.llvm.6590768638138871020+0x1f4/0x2ec cpu_startup_entry+0x28/0x2c     secondary_start_kernel+0x1b8/0x220 __secondary_switched+0x94/0x98 Instead, call rcu_irq_enter/exit to wake     up RCU only when needed and disable interrupts for the entire CFI shadow/module check when we do.
    (CVE-2022-49709)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of kernel installed on the remote host is prior to 5.15.50-23.125. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2022-002 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    drm/plane: Move range check for format_count earlier (CVE-2021-47659)

    In the Linux kernel, the following vulnerability has been resolved:

    fs/ntfs3: Fix some memory leaks in an error handling path of 'log_replay()' (CVE-2021-47660)

    A use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernel's filesystem sub-     component. This flaw allows a local attacker with a user privilege to cause a denial of service.
    (CVE-2022-1184)

    With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID     is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference.
    (CVE-2022-1789)

    A NULL pointer dereference flaw was found in the Linux kernel's KVM module, which can lead to a denial of     service in the x86_emulate_insn in arch/x86/kvm/emulate.c. This flaw occurs while executing an illegal     instruction in guest in the Intel CPU. (CVE-2022-1852)

    A use-after-free vulnerability was found in the Linux kernel's Netfilter subsystem in     net/netfilter/nf_tables_api.c. This flaw allows a local attacker with user access to cause a privilege     escalation issue. (CVE-2022-1966)

    A use-after-free flaw was found in the Linux kernel in log_replay in fs/ntfs3/fslog.c in the NTFS journal.
    This flaw allows a local attacker to crash the system and leads to a kernel information leak problem.
    (CVE-2022-1973)

    A vulnerability was found in the Linux kernel's nft_set_desc_concat_parse() function .This flaw allows an     attacker to trigger a buffer overflow via nft_set_desc_concat_parse() , causing a denial of service and     possibly to run code. (CVE-2022-2078)

    A flaw was found in hw. Incomplete cleanup of multi-core shared buffers for some Intel(r) Processors may     allow an authenticated user to enable information disclosure via local access. (CVE-2022-21123)

    A flaw was found in hw. Incomplete cleanup of microarchitectural fill buffers on some Intel(r) Processors     may allow an authenticated user to enable information disclosure via local access. (CVE-2022-21125)

    A flaw was found in hw. Incomplete cleanup in specific special register write operations for some     Intel Processors may allow an authenticated user to enable information disclosure via local access.
    (CVE-2022-21166)

    net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create     user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to     a use-after-free. (CVE-2022-32250)

    An issue was discovered in the Linux kernel through 5.18.3 on powerpc 32-bit platforms. There is a buffer     overflow in ptrace PEEKUSER and POKEUSER (aka PEEKUSR and POKEUSR) when accessing floating point     registers. (CVE-2022-32981)

    rpmsg_virtio_add_ctrl_dev in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a     double free. (CVE-2022-34494)

    rpmsg_probe in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free.
    (CVE-2022-34495)

    In the Linux kernel, the following vulnerability has been resolved:

    nbd: call genl_unregister_family() first in nbd_cleanup() (CVE-2022-49295)

    In the Linux kernel, the following vulnerability has been resolved:

    nbd: fix io hung while disconnecting device (CVE-2022-49297)

    In the Linux kernel, the following vulnerability has been resolved:

    nbd: fix race between nbd_alloc_config() and module removal (CVE-2022-49300)

    In the Linux kernel, the following vulnerability has been resolved:

    NFSv4: Don't hold the layoutget locks across multiple RPC calls (CVE-2022-49316)

    In the Linux kernel, the following vulnerability has been resolved:

    iommu/arm-smmu-v3: check return value after calling platform_get_resource() (CVE-2022-49319)

    In the Linux kernel, the following vulnerability has been resolved:

    tracing: Fix sleeping function called from invalid context on RT kernel (CVE-2022-49322)

    In the Linux kernel, the following vulnerability has been resolved:

    iommu/arm-smmu: fix possible null-ptr-deref in arm_smmu_device_probe() (CVE-2022-49323)

    In the Linux kernel, the following vulnerability has been resolved:

    tcp: add accessors to read/set tp->snd_cwnd (CVE-2022-49325)

    In the Linux kernel, the following vulnerability has been resolved:

    bcache: avoid journal no-space deadlock by reserving 1 journal bucket (CVE-2022-49327)

    In the Linux kernel, the following vulnerability has been resolved:

    tcp: fix tcp_mtup_probe_success vs wrong snd_cwnd (CVE-2022-49330)

    In the Linux kernel, the following vulnerability has been resolved:

    net: ipv6: unexport __init-annotated seg6_hmac_init() (CVE-2022-49339)

    In the Linux kernel, the following vulnerability has been resolved:

    ip_gre: test csum_start instead of transport header (CVE-2022-49340)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf, arm64: Clear prog->jited_len along prog->jited (CVE-2022-49341)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: avoid cycles in directory h-tree (CVE-2022-49343)

    In the Linux kernel, the following vulnerability has been resolved:

    af_unix: Fix a data-race in unix_dgram_peer_wake_me(). (CVE-2022-49344)

    In the Linux kernel, the following vulnerability has been resolved:

    net: xfrm: unexport __init-annotated xfrm4_protocol_init() (CVE-2022-49345)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix bug_on in ext4_writepages (CVE-2022-49347)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: filter out EXT4_FC_REPLAY from on-disk superblock field s_state (CVE-2022-49348)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix use-after-free in ext4_rename_dir_prepare (CVE-2022-49349)

    In the Linux kernel, the following vulnerability has been resolved:

    net: mdio: unexport __init-annotated mdio_bus_init() (CVE-2022-49350)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix warning in ext4_handle_inode_extension (CVE-2022-49352)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: nf_tables: memleak flow rule from commit path (CVE-2022-49358)

    In the Linux kernel, the following vulnerability has been resolved:

    firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle (CVE-2022-49370)

    In the Linux kernel, the following vulnerability has been resolved:

    driver core: fix deadlock in __device_attach (CVE-2022-49371)

    In the Linux kernel, the following vulnerability has been resolved:

    tcp: tcp_rtx_synack() can be called from process context (CVE-2022-49372)

    In the Linux kernel, the following vulnerability has been resolved:

    tipc: check attribute length for bearer name (CVE-2022-49374)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: sd: Fix potential NULL pointer dereference (CVE-2022-49376)

    In the Linux kernel, the following vulnerability has been resolved:

    blk-mq: don't touch ->tagset in blk_mq_get_sq_hctx (CVE-2022-49377)

    In the Linux kernel, the following vulnerability has been resolved:

    driver core: Fix wait_for_device_probe() & deferred_probe_timeout interaction (CVE-2022-49379)

    In the Linux kernel, the following vulnerability has been resolved:

    md: fix double free of io_acct_set bioset (CVE-2022-49384)

    In the Linux kernel, the following vulnerability has been resolved:

    driver: base: fix UAF when driver_attach failed (CVE-2022-49385)

    In the Linux kernel, the following vulnerability has been resolved:

    usb: usbip: fix a refcount leak in stub_probe() (CVE-2022-49389)

    In the Linux kernel, the following vulnerability has been resolved:

    md: Don't set mddev private to NULL in raid0 pers->free (CVE-2022-49400)

    In the Linux kernel, the following vulnerability has been resolved:

    ftrace: Clean up hash direct_functions on register failures (CVE-2022-49402)

    In the Linux kernel, the following vulnerability has been resolved:

    dlm: fix plock invalid read (CVE-2022-49407)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix bug_on in __es_tree_search (CVE-2022-49409)

    In the Linux kernel, the following vulnerability has been resolved:

    tracing: Fix potential double free in create_var_ref() (CVE-2022-49410)

    In the Linux kernel, the following vulnerability has been resolved:

    bfq: Make sure bfqg for which we are queueing requests is online (CVE-2022-49411)

    In the Linux kernel, the following vulnerability has been resolved:

    bfq: Avoid merging queues with different parents (CVE-2022-49412)

    In the Linux kernel, the following vulnerability has been resolved:

    bfq: Update cgroup information before merging bio (CVE-2022-49413)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix race condition between ext4_write and ext4_convert_inline_data (CVE-2022-49414)

    In the Linux kernel, the following vulnerability has been resolved:

    iommu/arm-smmu-v3-sva: Fix mm use-after-free (CVE-2022-49426)

    In the Linux kernel, the following vulnerability has been resolved:

    PCI: Avoid pci_dev_lock() AB/BA deadlock with sriov_numvfs_store() (CVE-2022-49434)

    In the Linux kernel, the following vulnerability has been resolved:

    tty: fix deadlock caused by calling printk() under tty_port->lock (CVE-2022-49441)

    In the Linux kernel, the following vulnerability has been resolved:

    drivers/base/node.c: fix compaction sysfs file leak (CVE-2022-49442)

    In the Linux kernel, the following vulnerability has been resolved:

    list: fix a data-race around ep->rdllist (CVE-2022-49443)

    In the Linux kernel, the following vulnerability has been resolved:

    nvdimm: Fix firmware activation deadlock scenarios (CVE-2022-49446)

    In the Linux kernel, the following vulnerability has been resolved:

    rxrpc: Fix listen() setting the bar too high for the prealloc rings (CVE-2022-49450)

    In the Linux kernel, the following vulnerability has been resolved:

    thermal/core: Fix memory leak in __thermal_cooling_device_register() (CVE-2022-49468)

    In the Linux kernel, the following vulnerability has been resolved:

    nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags (CVE-2022-49492)

    In the Linux kernel, the following vulnerability has been resolved:

    net: remove two BUG() from skb_checksum_help() (CVE-2022-49497)

    In the Linux kernel, the following vulnerability has been resolved:

    HID: elan: Fix potential double free in elan_input_configured (CVE-2022-49508)

    In the Linux kernel, the following vulnerability has been resolved:

    arm64: compat: Do not treat syscall number as ESR_ELx for a bad syscall (CVE-2022-49520)

    In the Linux kernel, the following vulnerability has been resolved:

    md/bitmap: don't set sb values if can't pass sanity check (CVE-2022-49526)

    In the Linux kernel, the following vulnerability has been resolved:

    rcu-tasks: Fix race in schedule and flush work (CVE-2022-49540)

    In the Linux kernel, the following vulnerability has been resolved:

    cifs: fix potential double free during failed mount (CVE-2022-49541)

    In the Linux kernel, the following vulnerability has been resolved:

    x86/kexec: fix memory leak of elf header buffer (CVE-2022-49546)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf: Fix potential array overflow in bpf_trampoline_get_progs() (CVE-2022-49548)

    In the Linux kernel, the following vulnerability has been resolved:

    x86/MCE/AMD: Fix memory leak when threshold_create_bank() fails (CVE-2022-49549)

    In the Linux kernel, the following vulnerability has been resolved:

    fs/ntfs3: validate BOOT sectors_per_clusters (CVE-2022-49553)

    In the Linux kernel, the following vulnerability has been resolved:

    zsmalloc: fix races between asynchronous zspage free and page migration (CVE-2022-49554)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak (CVE-2022-49556)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: nf_tables: double hook unregistration in netns path (CVE-2022-49558)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: x86: Drop WARNs that assert a triple fault never escapes from L2 (CVE-2022-49559)

    In the Linux kernel, the following vulnerability has been resolved:

    exfat: check if cluster num is valid (CVE-2022-49560)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: conntrack: re-fetch conntrack after insertion (CVE-2022-49561)

    In the Linux kernel, the following vulnerability has been resolved:

    zonefs: fix zonefs_iomap_begin() for reads (CVE-2022-49706)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: add reserved GDT blocks check (CVE-2022-49707)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix bug_on ext4_mb_use_inode_pa (CVE-2022-49708)

    In the Linux kernel, the following vulnerability has been resolved:

    cfi: Fix __cfi_slowpath_diag RCU usage with cpuidle (CVE-2022-49709)

    In the Linux kernel, the following vulnerability has been resolved:

    dm mirror log: round up region bitmap size to BITS_PER_LONG (CVE-2022-49710)

    In the Linux kernel, the following vulnerability has been resolved:

    irqchip/gic-v3: Fix refcount leak in gic_populate_ppi_partitions (CVE-2022-49715)

    In the Linux kernel, the following vulnerability has been resolved:

    irqchip/gic-v3: Fix error handling in gic_populate_ppi_partitions (CVE-2022-49716)

    In the Linux kernel, the following vulnerability has been resolved:

    block: Fix handling of offline queues in blk_mq_alloc_request_hctx() (CVE-2022-49720)

    In the Linux kernel, the following vulnerability has been resolved:

    arm64: ftrace: consistently handle PLTs. (CVE-2022-49721)

    In the Linux kernel, the following vulnerability has been resolved:

    drm/i915/reset: Fix error_state_read ptr + offset use (CVE-2022-49723)

    In the Linux kernel, the following vulnerability has been resolved:

    clocksource: hyper-v: unexport __init-annotated hv_init_clocksource() (CVE-2022-49726)

    In the Linux kernel, the following vulnerability has been resolved:

    ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo() (CVE-2022-49731)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
227023	Linux Distros Unpatched Vulnerability : CVE-2022-49709	Nessus	Misc.	medium
163372	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2022-002 (ALASKERNEL-5.15-2022-002)	Nessus	Amazon Linux Local Security Checks	high

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