In the Linux kernel, the following vulnerability has been resolved: libbpf: Handle size overflow for ringbuf mmap The maximum size of ringbuf is 2GB on x86-64 host, so 2 * max_entries will overflow u32 when mapping producer page and data pages. Only casting max_entries to size_t is not enough, because for 32-bits application on 64-bits kernel the size of read-only mmap region also could overflow size_t. So fixing it by casting the size of read-only mmap region into a __u64 and checking whether or not there will be overflow during mmap.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987174 advisory.

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

    libbpf: Handle size overflow for ringbuf mmap

    The maximum size of ringbuf is 2GB on x86-64 host, so 2 * max_entries     will overflow u32 when mapping producer page and data pages. Only     casting max_entries to size_t is not enough, because for 32-bits     application on 64-bits kernel the size of read-only mmap region     also could overflow size_t.

    So fixing it by casting the size of read-only mmap region into a __u64     and checking whether or not there will be overflow during mmap.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

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

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: libbpf: Handle size overflow for     ringbuf mmap The maximum size of ringbuf is 2GB on x86-64 host, so 2 * max_entries will overflow u32 when     mapping producer page and data pages. Only casting max_entries to size_t is not enough, because for     32-bits application on 64-bits kernel the size of read-only mmap region also could overflow size_t. So     fixing it by casting the size of read-only mmap region into a __u64 and checking whether or not there will     be overflow during mmap. (CVE-2022-49030)

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

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    bpf: sync_linked_regs() must preserve subreg_def(CVE-2024-53125)

    nvme-multipath: defer partition scanning(CVE-2024-53093)

    dm cache: fix flushing uninitialized delayed_work on cache_ctr error(CVE-2024-50280)

    net: fix data-races around sk-sk_forward_alloc(CVE-2024-53124)

    NFSD: Never decrement pending_async_copies on error(CVE-2024-53073)

    smb: client: Fix use-after-free of network namespace.(CVE-2024-53095)

    mm: resolve faulty mmap_region() error path behaviour(CVE-2024-53096)

    media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format(CVE-2024-53104)

    arm64: probes: Fix uprobes for big-endian kernels(CVE-2024-50194)

    HID: core: zero-initialize the report buffer(CVE-2024-50302)

    ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_find().(CVE-2024-50304)

    i40e: fix race condition by adding filter's intermediate sync state(CVE-2024-53088)

    media: dvbdev: prevent the risk of out of memory access(CVE-2024-53063)

    dm cache: fix potential out-of-bounds access on the first resume(CVE-2024-50278)

    dm cache: fix out-of-bounds access to the dirty bitset when resizing(CVE-2024-50279)

    net/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT(CVE-2024-53057)

    usb: typec: altmode should keep reference to parent(CVE-2024-50150)

    vsock/virtio: Initialization of the dangling pointer occurring in vsk-trans(CVE-2024-50264)

    USB: serial: io_edgeport: fix use after free in debug printk(CVE-2024-50267)

    filemap: Fix bounds checking in filemap_read().(CVE-2024-50272)

    sctp: properly validate chunk size in sctp_sf_ootb().(CVE-2024-50299)

    bpf: Check validity of link-type in bpf_link_show_fdinfo().(CVE-2024-53099)

    media: av7110: fix a spectre vulnerability(CVE-2024-50289)

    RDMA/bnxt_re: Fix a bug while setting up Level-2 PBL pages(CVE-2024-50208)

    security/keys: fix slab-out-of-bounds in key_task_permission(CVE-2024-50301)

    KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory(CVE-2024-50115)

    nfs: Fix KMSAN warning in decode_getfattr_attrs().(CVE-2024-53066)

    net: missing check virtio(CVE-2024-43817)

    io_uring/rw: fix missing NOWAIT check for O_DIRECT start write(CVE-2024-53052)

    An issue was discovered in the Linux kernel before 5.11.11. The BPF subsystem does not properly consider     that resolved_ids and resolved_sizes are intentionally uninitialized in the vmlinux BPF Type Format (BTF),     which can cause a system crash upon an unexpected access attempt (in map_create in kernel/bpf/syscall.c or     check_btf_info in kernel/bpf/verifier.c), aka CID-350a5c4dd245.(CVE-2021-29648)

    sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start(CVE-2024-49944)

    be2net: fix potential memory leak in be_xmit().(CVE-2024-50167)

    netfilter: nf_reject_ipv6: fix potential crash in nf_send_reset6().(CVE-2024-50256)

    netfilter: nft_payload: sanitize offset and length before calling skb_checksum().(CVE-2024-50251)

    net: hns3: fix kernel crash when uninstalling driver(CVE-2024-50296)

    tcp/dccp: Don't use timer_pending() in reqsk_queue_unlink().(CVE-2024-50154)

    net: fix crash when config small gso_max_size/gso_ipv4_max_size(CVE-2024-50258)

    RDMA/bnxt_re: Add a check for memory allocation(CVE-2024-50209)

    netfilter: nf_tables: prevent nf_skb_duplicated corruption(CVE-2024-49952)

    udf: fix uninit-value use in udf_get_fileshortad(CVE-2024-50143)

    bpf: Fix out-of-bounds write in trie_get_next_key().(CVE-2024-50262)

    tpm: Lock TPM chip in tpm_pm_suspend() first(CVE-2024-53085)

    bpf: support non-r10 register spill/fill to/from stack in precision tracking(CVE-2023-52920)

    bpf, arm64: Fix address emission with tag-based KASAN enabled(CVE-2024-50203)

    mm/swapfile: skip HugeTLB pages for unuse_vma(CVE-2024-50199)

    secretmem: disable memfd_secret() if arch cannot set direct map(CVE-2024-50182)

    NFSD: Initialize struct nfsd4_copy earlier(CVE-2024-50241)

    nvme-pci: fix race condition between reset and nvme_dev_disable().(CVE-2024-50135)

    irqchip/gic-v4: Don't allow a VMOVP on a dying VPE(CVE-2024-50192)

    bpf: Use raw_spinlock_t in ringbuf(CVE-2024-50138)

    x86/sgx: Fix deadlock in SGX NUMA node search(CVE-2024-49856)

    KVM: x86: Acquire kvm-srcu when handling KVM_SET_VCPU_EVENTS(CVE-2024-46830)

    RDMA/mad: Improve handling of timed out WRs of mad agent(CVE-2024-50095)

    ceph: remove the incorrect Fw reference check when dirtying pages(CVE-2024-50179)

    kernel: Fix page corruption caused by racy check in __free_pages(CVE-2023-52739)

    xfrm: validate new SA's prefixlen using SA family when sel.family is unset(CVE-2024-50142)

    posix-clock: Fix missing timespec64 check in pc_clock_settime().(CVE-2024-50195)

    iommu/vt-d: Fix double list_add when enabling VMD in scalable mode(CVE-2022-48916)

    static_call: Replace pointless WARN_ON() in static_call_module_notify().(CVE-2024-49954)

    tracing: Consider the NULL character when validating the event length(CVE-2024-50131)

    tty: n_gsm: Fix use-after-free in gsm_cleanup_mux(CVE-2024-50073)

    arm64: probes: Remove broken LDR (literal) uprobe support(CVE-2024-50099)

    net: add more sanity checks to qdisc_pkt_len_init().(CVE-2024-49948)

    net: avoid potential underflow in qdisc_pkt_len_init() with UFO(CVE-2024-49949)

    l2tp: prevent possible tunnel refcount underflow(CVE-2024-49940)

    RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency(CVE-2024-47696)

    smb: client: fix OOBs when building SMB2_IOCTL request(CVE-2024-50151)

    platform/x86: ISST: Fix the KASAN report slab-out-of-bounds bug(CVE-2024-49886)

    resource: fix region_intersects() vs add_memory_driver_managed().(CVE-2024-49878)

    sched: Fix yet more sched_fork() races(CVE-2022-48944)

    sched/fair: Fix fault in reweight_entity(CVE-2022-48921)

    fs/inode: Prevent dump_mapping() accessing invalid dentry.d_name.name(CVE-2024-49934)

    usb: xhci: Check endpoint is valid before dereferencing it(CVE-2023-52901)

    gso: fix udp gso fraglist segmentation after pull from frag_list(CVE-2024-49978)

    NFSD: Limit the number of concurrent async COPY operations(CVE-2024-49974)

    drm/amd/display: Initialize denominators' default to 1(CVE-2024-49899)

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

    tipc: guard against string buffer overrun(CVE-2024-49995)

    net/mlx5: Fix error path in multi-packet WQE transmit(CVE-2024-50001)

    static_call: Handle module init failure correctly in static_call_del_module().(CVE-2024-50002)

    blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race(CVE-2024-50082)

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

    drm/amd/display: Skip wbscl_set_scaler_filter if filter is null(CVE-2024-46714)

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

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

    drm/amd/display: Avoid overflow assignment in link_dp_cts(CVE-2024-50016)

    x86/bugs: Use code segment selector for VERW operand(CVE-2024-50072)

    parport: Proper fix for array out-of-bounds access(CVE-2024-50074)

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

    ext4: fix timer use-after-free on failed mount(CVE-2024-49960)

    ext4: fix i_data_sem unlock order in ext4_ind_migrate().(CVE-2024-50006)

    ext4: fix access to uninitialised lock in fc replay path(CVE-2024-50014)

    bpf: Prevent tail call between progs attached to different hooks(CVE-2024-50063)

    RDMA/cxgb4: Added NULL check for lookup_atid(CVE-2024-47749)

    nfsd: map the EBADMSG to nfserr_io to avoid warning(CVE-2024-49875)

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

    nbd: fix race between timeout and normal completion(CVE-2024-49855)

    io_uring: check if we need to reschedule during overflow flush(CVE-2024-50060)

    ext4: drop ppath from ext4_ext_replay_update_ex() to avoid double-free(CVE-2024-49983)

    net: Fix an unsafe loop on the list(CVE-2024-50024)

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

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

    thermal: core: Reference count the zone in thermal_zone_get_by_id().(CVE-2024-50028)

    nfsd: return -EINVAL when namelen is 0(CVE-2024-47692)

    IB/core: Fix ib_cache_setup_one error flow cleanup(CVE-2024-47693)

    efistub/tpm: Use ACPI reclaim memory for event log to avoid corruption(CVE-2024-49858)

    Bluetooth: Fix not cleanup led when bt_init fails(CVE-2022-48971)

    igb: Do not bring the device up after non-fatal error(CVE-2024-50040)

    uprobes: fix kernel info leak via '[uprobes]' vma(CVE-2024-49975)

    serial: protect uart_port_dtr_rts() in uart_shutdown() too(CVE-2024-50058)

    bpf: Zero former ARG_PTR_TO_{LONG,INT} args in case of error(CVE-2024-47728)

    NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies().(CVE-2024-50046)

    lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc().(CVE-2024-47668)

    iavf: Fix error handling in iavf_init_module().(CVE-2022-49027)

    netfilter: xtables: avoid NFPROTO_UNSPEC where needed(CVE-2024-50038)

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

    bpf, lsm: Add check for BPF LSM return value(CVE-2024-47703)

    net/sched: accept TCA_STAB only for root qdisc(CVE-2024-50039)

    block: fix potential invalid pointer dereference in blk_add_partition(CVE-2024-47705)

    drm/amd/display: Check null pointers before using dc-clk_mgr(CVE-2024-49907)

    scsi: lpfc: Validate hdwq pointers before dereferencing in reset/errata paths(CVE-2024-49891)

    nfsd: call cache_put if xdr_reserve_space returns NULL(CVE-2024-47737)

    padata: use integer wrap around to prevent deadlock on seq_nr overflow(CVE-2024-47739)

    ipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev().(CVE-2024-47707)

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

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

    icmp: change the order of rate limits(CVE-2024-47678)

    vfs: fix race between evice_inodes() and find_inode()iput().(CVE-2024-47679)

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

    tipc: re-fetch skb cb after tipc_msg_validate(CVE-2022-49017)

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

    net/mlx5e: Fix use-after-free when reverting termination table(CVE-2022-49025)

    drivers: media: dvb-frontends/rtl2830: fix an out-of-bounds write error(CVE-2024-47697)

    smb: client: fix UAF in async decryption(CVE-2024-50047)

    drivers: media: dvb-frontends/rtl2832: fix an out-of-bounds write error(CVE-2024-47698)

    crypto: hisilicon/qm - inject error before stopping queue(CVE-2024-47730)

    bpf: Fix helper writes to read-only maps(CVE-2024-49861)

    ppp: fix ppp_async_encode() illegal access(CVE-2024-50035)

    cifs: Fix buffer overflow when parsing NFS reparse points(CVE-2024-49996)

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

    slip: make slhc_remember() more robust against malicious packets(CVE-2024-50033)

    netfilter: br_netfilter: fix panic with metadata_dst skb(CVE-2024-50045)

    ACPI: sysfs: validate return type of _STR method(CVE-2024-49860)

    firmware_loader: Block path traversal(CVE-2024-47742)

    drm/amd/display: Fix index out of bounds in degamma hardware format translation(CVE-2024-49894)

    vhost/scsi: null-ptr-dereference in vhost_scsi_get_req().(CVE-2024-49863)

    uprobe: avoid out-of-bounds memory access of fetching args(CVE-2024-50067)

    ACPI: battery: Fix possible crash when unregistering a battery hook(CVE-2024-49955)

    jbd2: stop waiting for space when jbd2_cleanup_journal_tail() returns error(CVE-2024-49959)

    ext4: dax: fix overflowing extents beyond inode size when partially writing(CVE-2024-50015)

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

    ext4: avoid OOB when system.data xattr changes underneath the filesystem(CVE-2024-47701)

    fbdev: efifb: Register sysfs groups through driver core(CVE-2024-49925)

    net: do not delay dst_entries_add() in dst_release()(CVE-2024-50036)

    ext4: avoid use-after-free in ext4_ext_show_leaf().(CVE-2024-49889)

    ext4: fix slab-use-after-free in ext4_split_extent_at().(CVE-2024-49884)

    ext4: aovid use-after-free in ext4_ext_insert_extent().(CVE-2024-49883)

    ext4: fix double brelse() the buffer of the extents path(CVE-2024-49882)

    ext4: update orig_path in ext4_find_extent().(CVE-2024-49881)

    ACPI: PAD: fix crash in exit_round_robin().(CVE-2024-49935)

    netfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()(CVE-2024-47685)

    scsi: fnic: Move flush_work initialization out of if block(CVE-2024-50025)

    tpm: Clean up TPM space after command failure(CVE-2024-49851)

    tcp: check skb is non-NULL in tcp_rto_delta_us().(CVE-2024-47684)

    sock_map: Add a cond_resched() in sock_hash_free().(CVE-2024-47710)

    vhost_vdpa: assign irq bypass producer token correctly(CVE-2024-47748)

    mm: call the security_mmap_file() LSM hook in remap_file_pages().(CVE-2024-47745)

    x86/ioapic: Handle allocation failures gracefully(CVE-2024-49927)

    mm: avoid leaving partial pfn mappings around in error case(CVE-2024-47674)

    blk_iocost: fix more out of bound shifts(CVE-2024-49933)

    ice: protect XDP configuration with a mutex(CVE-2024-46765)

Tenable has extracted the preceding description block directly from the EulerOS kernel security advisory.

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

The version of kernel installed on the remote host is prior to 5.10.162-141.675. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2023-025 advisory.

    A vulnerability classified as problematic has been found in Linux Kernel. This affects the function     fib_nh_match of the file net/ipv4/fib_semantics.c of the component IPv4 Handler. The manipulation leads to     out-of-bounds read. It is possible to initiate the attack remotely. It is recommended to apply a patch to     fix this issue. The identifier VDB-210357 was assigned to this vulnerability. (CVE-2022-3435)

    A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this     vulnerability is the function follow_page_pte of the file mm/gup.c of the component BPF. The manipulation     leads to race condition. The attack can be launched remotely. It is recommended to apply a patch to fix     this issue. The identifier VDB-211921 was assigned to this vulnerability. (CVE-2022-3623)

    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)

    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)

    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:

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

    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:

    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:

    drm/shmem-helper: Remove errant put in error path (CVE-2022-48981)

    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:

    media: v4l2-dv-timings.c: fix too strict blanking sanity checks (CVE-2022-48987)

    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:

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

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

    nilfs2: fix NULL pointer dereference in nilfs_palloc_commit_free_entry() (CVE-2022-49007)

    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:

    tipc: re-fetch skb cb after tipc_msg_validate (CVE-2022-49017)

    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:

    net/mlx5e: Fix use-after-free when reverting termination table (CVE-2022-49025)

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

    iavf: Fix error handling in iavf_init_module() (CVE-2022-49027)

    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 time-of-check to time-of-use issue exists in io_uring subsystem's IORING_OP_CLOSE operation in the Linux     kernel's versions 5.6 - 5.11 (inclusive), which allows a local user to elevate their privileges to root.
    Introduced in b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb, patched in     9eac1904d3364254d622bf2c771c4f85cd435fc2, backported to stable in     788d0824269bef539fe31a785b1517882eafed93. (CVE-2023-1295)

    A null pointer dereference issue was found in the can protocol in net/can/af_can.c in the Linux Kernel.
    ml_priv may not be initialized in the receive path of CAN frames. This issue could allow a local user to     crash the system or cause a denial of service. (CVE-2023-2166)

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.

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)

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

    ceph: avoid putting the realm twice when decoding snaps fails (CVE-2022-49770)

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

    dm ioctl: fix misbehavior if list_versions races with module loading (CVE-2022-49771)

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

    macvlan: enforce a consistent minimal mtu (CVE-2022-49776)

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

    kprobes: Skip clearing aggrprobe's post_handler in kprobe-on-ftrace case (CVE-2022-49779)

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

    scsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus() (CVE-2022-49780)

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

    perf: Improve missing SIGTRAP checking (CVE-2022-49782)

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

    misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram() (CVE-2022-49788)

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

    tracing: Fix race where eprobes can be called before the event (CVE-2022-49798)

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

    tracing: Fix memory leak in tracing_read_pipe() (CVE-2022-49801)

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

    ftrace: Fix null pointer dereference in ftrace_add_mod() (CVE-2022-49802)

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

    drbd: use after free in drbd_create_device() (CVE-2022-49811)

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

    bridge: switchdev: Fix memory leaks when changing VLAN protocol (CVE-2022-49812)

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

    kcm: close race conditions on sk_receive_queue (CVE-2022-49814)

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

    cifs: Fix connections leak when tlink setup failed (CVE-2022-49822)

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

    ata: libata-transport: fix error handling in ata_tdev_add() (CVE-2022-49823)

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

    ata: libata-transport: fix error handling in ata_tlink_add() (CVE-2022-49824)

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

    ata: libata-transport: fix error handling in ata_tport_add() (CVE-2022-49825)

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

    ata: libata-transport: fix double ata_host_put() in ata_tport_add() (CVE-2022-49826)

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

    drm: Fix potential null-ptr-deref in drm_vblank_destroy_worker() (CVE-2022-49827)

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

    hugetlbfs: don't delete error page from pagecache (CVE-2022-49828)

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

    drm/drv: Fix potential memory leak in drm_dev_init() (CVE-2022-49830)

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

    pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map (CVE-2022-49832)

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

    bpf: Fix memory leaks in __check_func_call (CVE-2022-49837)

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

    sctp: clear out_curr if all frag chunks of current msg are pruned (CVE-2022-49838)

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

    bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb() (CVE-2022-49840)

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

    igb: Do not free q_vector unless new one was allocated (CVE-2022-50252)

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

    bpf: make sure skb->len != 0 when redirecting to a tunneling device (CVE-2022-50253)

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

    bpf, sockmap: fix race in sock_map_free() (CVE-2022-50259)

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

    power: supply: fix null pointer dereferencing in power_supply_get_battery_info (CVE-2022-50276)

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

    PNP: fix name memory leak in pnp_alloc_dev() (CVE-2022-50278)

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

    chardev: fix error handling in cdev_device_add() (CVE-2022-50282)

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

    btrfs: do not BUG_ON() on ENOMEM when dropping extent items for a range (CVE-2022-50293)

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

    lockd: set other missing fields when unlocking files (CVE-2022-50302)

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

    perf/x86/intel/uncore: Fix reference count leak in hswep_has_limit_sbox() (CVE-2022-50318)

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

    hugetlbfs: fix null-ptr-deref in hugetlbfs_parse_param() (CVE-2022-50334)

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

    rapidio: fix possible name leaks when rio_add_device() fails (CVE-2022-50343)

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

    skbuff: Account for tail adjustment during pull operations (CVE-2022-50365)

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

    padata: Always leave BHs disabled when running ->parallel() (CVE-2022-50382)

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

    NFS: Fix an Oops in nfs_d_automount() (CVE-2022-50385)

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

    integrity: Fix memory leakage in keyring allocation error path (CVE-2022-50395)

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

    nfsd: under NFSv4.1, fix double svc_xprt_put on rpc_create failure (CVE-2022-50401)

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

    drivers/md/md-bitmap: check the return value of md_bitmap_get_counter() (CVE-2022-50402)

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

    fbdev: fbcon: release buffer when fbcon_do_set_font() failed (CVE-2022-50404)

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

    net/tunnel: wait until all sk_user_data reader finish before releasing the sock (CVE-2022-50405)

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

    ACPICA: Fix error code path in acpi_ds_call_control_method() (CVE-2022-50411)

    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	Severity
268442	Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987174)	Nessus	Unity Linux Local Security Checks	high
249913	Linux Distros Unpatched Vulnerability : CVE-2022-49030	Nessus	Misc.	high
236908	EulerOS Virtualization 2.12.0 : kernel (EulerOS-SA-2025-1562)	Nessus	Huawei Local Security Checks	critical
236896	EulerOS Virtualization 2.12.1 : kernel (EulerOS-SA-2025-1547)	Nessus	Huawei Local Security Checks	critical
216030	EulerOS 2.0 SP12 : kernel (EulerOS-SA-2025-1176)	Nessus	Huawei Local Security Checks	critical
216006	EulerOS 2.0 SP12 : kernel (EulerOS-SA-2025-1192)	Nessus	Huawei Local Security Checks	critical
170472	Amazon Linux 2 : kernel (ALASKERNEL-5.10-2023-025)	Nessus	Amazon Linux Local Security Checks	high
170458	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2023-012 (ALASKERNEL-5.15-2023-012)	Nessus	Amazon Linux Local Security Checks	high

Detections

Analytics

CVE-2022-49030

high

Tenable Plugins

high

high

critical

critical

critical

critical

high

high