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: perf: Fix perf_pending_task() UaF Per     syzbot it is possible for perf_pending_task() to run after the event is free()'d. There are two related     but distinct cases: - the task_work was already queued before destroying the event; - destroying the event     itself queues the task_work. The first cannot be solved using task_work_cancel() since perf_release()     itself might be called from a task_work (____fput), which means the current->task_works list is already     empty and task_work_cancel() won't be able to find the perf_pending_task() entry. The simplest alternative     is extending the perf_event lifetime to cover the task_work. The second is just silly, queueing a     task_work while you know the event is going away makes no sense and is easily avoided by re-arranging how     the event is marked STATE_DEAD and ensuring it goes through STATE_OFF on the way down. (CVE-2022-48950)

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 5.15.86-53.137. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2023-012 advisory.

    A flaw was found in the Linux kernel. A denial of service flaw may occur if there is a consecutive request     of the NVME_IOCTL_RESET and the NVME_IOCTL_SUBSYS_RESET through the device file of the driver, resulting     in a PCIe link disconnect. (CVE-2022-3169)

    A vulnerability classified as critical has been found in Linux Kernel. Affected is the function     btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component libbpf. The manipulation leads to     use after free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability     is VDB-211032. (CVE-2022-3534)

    Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC     interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It     appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet protocol     headers are all contained within the linear section of the SKB and some NICs behave badly if this is not     the case. This has been reported to occur with Cisco (enic) and Broadcom NetXtrem II BCM5780 (bnx2x)     though it may be an issue with other NICs/drivers as well. In case the frontend is sending requests with     split headers, netback will forward those violating above mentioned assumption to the networking core,     resulting in said misbehavior. (CVE-2022-3643)

    An incorrect TLB flush issue was found in the Linux kernel's GPU i915 kernel driver, potentially leading     to random memory corruption or data leaks. This flaw could allow a local user to crash the system or     escalate their privileges on the system. (CVE-2022-4139)

    Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs;
    the text explains which aspects/vulnerabilities correspond to which CVE.] The patch for XSA-392 introduced     another issue which might result in a deadlock when trying to free the SKB of a packet dropped due to the     XSA-392 handling (CVE-2022-42328). Additionally when dropping packages for other reasons the same deadlock     could occur in case of netpoll being active for the interface the xen-netback driver is connected to     (CVE-2022-42329). (CVE-2022-42328)

    Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs;
    the text explains which aspects/vulnerabilities correspond to which CVE.] The patch for XSA-392 introduced     another issue which might result in a deadlock when trying to free the SKB of a packet dropped due to the     XSA-392 handling (CVE-2022-42328). Additionally when dropping packages for other reasons the same deadlock     could occur in case of netpoll being active for the interface the xen-netback driver is connected to     (CVE-2022-42329). (CVE-2022-42329)

    A stack overflow flaw was found in the Linux kernel's SYSCTL subsystem in how a user changes certain     kernel parameters and variables. This flaw allows a local user to crash or potentially escalate their     privileges on the system. (CVE-2022-4378)

    A use-after-free vulnerability was found in __nfs42_ssc_open() in fs/nfs/nfs4file.c in the Linux kernel.
    This flaw allows an attacker to conduct a remote denial of service. (CVE-2022-4379)

    A race condition in the x86 KVM subsystem in the Linux kernel through 6.1-rc6 allows guest OS users to     cause a denial of service (host OS crash or host OS memory corruption) when nested virtualisation and the     TDP MMU are enabled. (CVE-2022-45869)

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

    udf: Fix preallocation discarding at indirect extent boundary (CVE-2022-48946)

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

    igb: Initialize mailbox message for VF reset (CVE-2022-48949)

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

    perf: Fix perf_pending_task() UaF (CVE-2022-48950)

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

    rtc: cmos: Fix event handler registration ordering issue (CVE-2022-48953)

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

    ipv6: avoid use-after-free in ip6_fragment() (CVE-2022-48956)

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

    net: mdio: fix unbalanced fwnode reference count in mdio_device_release() (CVE-2022-48961)

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

    xen-netfront: Fix NULL sring after live migration (CVE-2022-48969)

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

    af_unix: Get user_ns from in_skb in unix_diag_get_exact(). (CVE-2022-48970)

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

    mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() (CVE-2022-48972)

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

    gpiolib: fix memory leak in gpiochip_setup_dev() (CVE-2022-48975)

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

    can: af_can: fix NULL pointer dereference in can_rcv_filter (CVE-2022-48977)

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

    HID: core: fix shift-out-of-bounds in hid_report_raw_event (CVE-2022-48978)

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

    io_uring: Fix a null-ptr-deref in io_tctx_exit_cb() (CVE-2022-48983)

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

    mm/gup: fix gup_pud_range() for dax (CVE-2022-48986)

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

    memcg: fix possible use-after-free in memcg_write_event_control() (CVE-2022-48988)

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

    mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths (CVE-2022-48991)

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

    char: tpm: Protect tpm_pm_suspend with locks (CVE-2022-48997)

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

    ipv4: Handle attempt to delete multipath route when fib_info contains an nh reference (CVE-2022-48999)

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

    iommu/vt-d: Fix PCI device refcount leak in has_external_pci() (CVE-2022-49000)

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

    iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() (CVE-2022-49002)

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

    nvme: fix SRCU protection of nvme_ns_head list (CVE-2022-49003)

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

    riscv: Sync efi page table's kernel mappings before switching (CVE-2022-49004)

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

    tracing: Free buffers when a used dynamic event is removed (CVE-2022-49006)

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

    sctp: fix memory leak in sctp_stream_outq_migrate() (CVE-2022-49013)

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

    net: tun: Fix use-after-free in tun_detach() (CVE-2022-49014)

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

    net: hsr: Fix potential use-after-free (CVE-2022-49015)

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

    net: mdiobus: fix unbalanced node reference count (CVE-2022-49016)

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

    net: phy: fix null-ptr-deref while probe() failed (CVE-2022-49021)

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

    ixgbevf: Fix resource leak in ixgbevf_init_module() (CVE-2022-49028)

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

    libbpf: Handle size overflow for ringbuf mmap (CVE-2022-49030)

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

    btrfs: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit() (CVE-2022-49033)

    A use-after-free flaw was found in reconn_set_ipaddr_from_hostname in fs/cifs/connect.c in the Linux     kernel. (CVE-2023-1195)

    In the Linux kernel 6.0.8, there is a use-after-free in ntfs_trim_fs in fs/ntfs3/bitmap.c.
    (CVE-2023-26606)

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	Published	Updated	Severity
225177	Linux Distros Unpatched Vulnerability : CVE-2022-48950	Nessus	Misc.	3/5/2025	3/5/2025	high
170458	Amazon Linux 2 : kernel (ALASKERNEL-5.15-2023-012)	Nessus	Amazon Linux Local Security Checks	1/24/2023	3/17/2025	high

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