In the Linux kernel, the following vulnerability has been resolved: tty: serial: fsl_lpuart: fix race on RX DMA shutdown From time to time DMA completion can come in the middle of DMA shutdown: <process ctx>: <IRQ>: lpuart32_shutdown() lpuart_dma_shutdown() del_timer_sync() lpuart_dma_rx_complete() lpuart_copy_rx_to_tty() mod_timer() lpuart_dma_rx_free() When the timer fires a bit later, sport->dma_rx_desc is NULL: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004 pc : lpuart_copy_rx_to_tty+0xcc/0x5bc lr : lpuart_timer_func+0x1c/0x2c Call trace: lpuart_copy_rx_to_tty lpuart_timer_func call_timer_fn __run_timers.part.0 run_timer_softirq __do_softirq __irq_exit_rcu irq_exit handle_domain_irq gic_handle_irq call_on_irq_stack do_interrupt_handler ... To fix this fold del_timer_sync() into lpuart_dma_rx_free() after dmaengine_terminate_sync() to make sure timer will not be re-started in lpuart_copy_rx_to_tty() <= lpuart_dma_rx_complete().

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

  - tty: serial: fsl_lpuart: fix race on RX DMA shutdown From time to time DMA completion can come in the     middle of DMA shutdown: <process ctx>: <IRQ>: lpuart32_shutdown() lpuart_dma_shutdown() del_timer_sync()     lpuart_dma_rx_complete() lpuart_copy_rx_to_tty() mod_timer() lpuart_dma_rx_free() When the timer fires a     bit later, sport->dma_rx_desc is NULL: Unable to handle kernel NULL pointer dereference at virtual address     0000000000000004 pc : lpuart_copy_rx_to_tty+0xcc/0x5bc lr : lpuart_timer_func+0x1c/0x2c Call trace:
    lpuart_copy_rx_to_tty lpuart_timer_func call_timer_fn __run_timers.part.0 run_timer_softirq __do_softirq
    __irq_exit_rcu irq_exit handle_domain_irq gic_handle_irq call_on_irq_stack do_interrupt_handler ... To fix     this fold del_timer_sync() into lpuart_dma_rx_free() after dmaengine_terminate_sync() to make sure timer     will not be re-started in lpuart_copy_rx_to_tty() <= lpuart_dma_rx_complete(). (CVE-2023-53094)

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

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:01983-1 advisory.

    The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2021-47670: can: peak_usb: fix use after free bugs (bsc#1241407).
    - CVE-2022-49139: Bluetooth: fix null ptr deref on hci_sync_conn_complete_evt (bsc#1238032).
    - CVE-2022-49145: ACPI: CPPC: Avoid out of bounds access when parsing _CPC data (bsc#1238162).
    - CVE-2022-49168: btrfs: do not clean up repair bio if submit fails (bsc#1238109).
    - CVE-2022-49190: kernel/resource: fix kfree() of bootmem memory again (bsc#1238130).
    - CVE-2022-49212: mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init (bsc#1238331).
    - CVE-2022-49216: drm/tegra: Fix reference leak in tegra_dsi_ganged_probe (bsc#1238338).
    - CVE-2022-49235: ath9k_htc: fix uninit value bugs (bsc#1238333).
    - CVE-2022-49248: ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction (bsc#1238284).
    - CVE-2022-49253: media: usb: go7007: s2250-board: fix leak in probe() (bsc#1238420).
    - CVE-2022-49320: dmaengine: zynqmp_dma: In struct zynqmp_dma_chan fix desc_size data type (bsc#1238394).
    - CVE-2022-49326: rtl818x: Prevent using not initialized queues (bsc#1238646).
    - CVE-2022-49371: driver core: fix deadlock in __device_attach (bsc#1238546).
    - CVE-2022-49382: soc: rockchip: Fix refcount leak in rockchip_grf_init (bsc#1238306).
    - CVE-2022-49396: phy: qcom-qmp: fix reset-controller leak on probe errors (bsc#1238289).
    - CVE-2022-49420: net: annotate races around sk->sk_bound_dev_if (bsc#1238887).
    - CVE-2022-49441: tty: fix deadlock caused by calling printk() under tty_port->lock (bsc#1238263).
    - CVE-2022-49445: pinctrl: renesas: core: Fix possible null-ptr-deref in sh_pfc_map_resources()     (bsc#1238019).
    - CVE-2022-49460: PM / devfreq: rk3399_dmc: Disable edev on remove() (bsc#1238892).
    - CVE-2022-49467: drm: msm: fix possible memory leak in mdp5_crtc_cursor_set() (bsc#1238815).
    - CVE-2022-49474: Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout (bsc#1238071).
    - CVE-2022-49491: drm/rockchip: vop: fix possible null-ptr-deref in vop_bind() (bsc#1238539).
    - CVE-2022-49503: ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix     (bsc#1238868).
    - CVE-2022-49592: net: stmmac: fix dma queue left shift overflow issue (bsc#1238311).
    - CVE-2022-49625: sfc: fix kernel panic when creating VF (bsc#1238411).
    - CVE-2022-49635: drm/i915/selftests: fix subtraction overflow bug (bsc#1238806).
    - CVE-2022-49652: dmaengine: ti: Fix refcount leak in ti_dra7_xbar_route_allocate (bsc#1238871).
    - CVE-2022-49715: irqchip/gic-v3: Fix refcount leak in gic_populate_ppi_partitions (bsc#1238818).
    - CVE-2022-49728: kABI workaround for changeing the variable length type to size_t (bsc#1239111).
    - CVE-2022-49729: nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred (bsc#1239060).
    - CVE-2022-49751: w1: fix WARNING after calling w1_process() (bsc#1240254).
    - CVE-2022-49761: btrfs: always report error in run_one_delayed_ref() (bsc#1240261).
    - CVE-2022-49772: ALSA: usb-audio: Drop snd_BUG_ON() from snd_usbmidi_output_open() (bsc#1242147).
    - CVE-2022-49775: tcp: cdg: allow tcp_cdg_release() to be called multiple times (bsc#1242245).
    - CVE-2022-49776: macvlan: enforce a consistent minimal mtu (bsc#1242248).
    - CVE-2022-49787: mmc: sdhci-pci: Fix possible memory leak caused by missing pci_dev_put() (bsc#1242352).
    - CVE-2022-49788: misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram() (bsc#1242353).
    - CVE-2022-49813: net: ena: Fix error handling in ena_init() (bsc#1242497).
    - CVE-2022-49821: mISDN: fix possible memory leak in mISDN_dsp_element_register() (bsc#1242542).
    - CVE-2022-49826: ata: libata-transport: fix double ata_host_put() in ata_tport_add() (bsc#1242549).
    - CVE-2022-49829: drm/scheduler: fix fence ref counting (bsc#1242691).
    - CVE-2022-49832: pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map (bsc#1242154).
    - CVE-2022-49835: ALSA: hda: fix potential memleak in 'add_widget_node' (bsc#1242385).
    - CVE-2022-49840: bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb() (bsc#1242447).
    - CVE-2022-49842: ASoC: soc-utils: Remove __exit for snd_soc_util_exit() (bsc#1242484).
    - CVE-2022-49853: net: macvlan: fix memory leaks of macvlan_common_newlink (bsc#1242688).
    - CVE-2022-49861: dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove() (bsc#1242580).
    - CVE-2022-49862: tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header     (bsc#1242755).
    - CVE-2022-49865: ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network (bsc#1242570).
    - CVE-2022-49871: net: tun: call napi_schedule_prep() to ensure we own a napi (bsc#1242558).
    - CVE-2022-49872: net: gso: fix panic on frag_list with mixed head alloc types (bsc#1242594).
    - CVE-2022-49874: HID: hyperv: fix possible memory leak in mousevsc_probe() (bsc#1242478).
    - CVE-2022-49898: btrfs: fix tree mod log mishandling of reallocated nodes (bsc#1242472).
    - CVE-2022-49907: net: mdio: fix undefined behavior in bit shift for __mdiobus_register (bsc#1242450).
    - CVE-2022-49913: btrfs: fix inode list leak during backref walking at find_parent_nodes() (bsc#1242470).
    - CVE-2022-49914: btrfs: fix inode list leak during backref walking at resolve_indirect_refs()     (bsc#1242427).
    - CVE-2022-49922: nfc: nfcmrvl: Fix potential memory leak in nfcmrvl_i2c_nci_send() (bsc#1242378).
    - CVE-2022-49923: nfc: nxp-nci: Fix potential memory leak in nxp_nci_send() (bsc#1242394).
    - CVE-2022-49924: nfc: fdp: Fix potential memory leak in fdp_nci_send() (bsc#1242426).
    - CVE-2022-49925: RDMA/core: Fix null-ptr-deref in ib_core_cleanup() (bsc#1242371).
    - CVE-2022-49931: IB/hfi1: Correctly move list in sc_disable() (bsc#1242382).
    - CVE-2023-52868: thermal: core: prevent potential string overflow (bsc#1225044).
    - CVE-2023-52975: scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress (bsc#1240322).
    - CVE-2023-52988: ALSA: hda/via: Avoid potential array out-of-bound in add_secret_dac_path()     (bsc#1240293).
    - CVE-2023-52989: firewire: fix memory leak for payload of request subaction to IEC 61883-1 FCP region     (bsc#1240266).
    - CVE-2023-52993: x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL (bsc#1240297).
    - CVE-2023-53039: HID: intel-ish-hid: ipc: Fix potential use-after-free in work function (bsc#1242745).
    - CVE-2023-53045: usb: gadget: u_audio: do not let userspace block driver unbind (bsc#1242756).
    - CVE-2023-53066: qed/qed_sriov: guard against NULL derefs from qed_iov_get_vf_info (bsc#1242227).
    - CVE-2023-53079: net/mlx5: Fix steering rules cleanup (bsc#1242765).
    - CVE-2023-53080: xsk: Add missing overflow check in xdp_umem_reg (bsc#1242287).
    - CVE-2023-53094: tty: serial: fsl_lpuart: fix race on RX DMA shutdown (bsc#1242288).
    - CVE-2023-53103: bonding: Fix memory leak when changing bond type to Ethernet (bsc#1242408).
    - CVE-2023-53114: i40e: Fix kernel crash during reboot when adapter is in recovery mode (bsc#1242398).
    - CVE-2023-53139: nfc: fdp: add null check of devm_kmalloc_array in fdp_nci_i2c_read_device_properties     (bsc#1242361).
    - CVE-2024-26740: Fixed use the backlog for mirred ingress  (bsc#1222563).
    - CVE-2024-27010: net/sched: Fix mirred deadlock on device recursion (bsc#1223720).
    - CVE-2024-45021: memcg_write_event_control(): fix a user-triggerable oops (bsc#1230434).
    - CVE-2024-46751: btrfs: do not BUG_ON() when 0 reference count at btrfs_lookup_extent_info()     (bsc#1230786).
    - CVE-2024-46752: btrfs: reduce nesting for extent processing at btrfs_lookup_extent_info() (bsc#1230794).
    - CVE-2024-50106: nfsd: fix race between laundromat and free_stateid() (bsc#1232882).
    - CVE-2024-53168: sunrpc: fix one UAF issue caused by sunrpc kernel tcp socket (bsc#1234887).
    - CVE-2024-56779: nfsd: fix nfs4_openowner leak when concurrent nfsd4_open occur (bsc#1235632).
    - CVE-2025-21648: netfilter: conntrack: clamp maximum hashtable size to INT_MAX (bsc#1236142).
    - CVE-2025-21702: pfifo_tail_enqueue: Drop new packet when sch->limit == 0 (bsc#1237312).
    - CVE-2025-21704: usb: cdc-acm: Check control transfer buffer size before access (bsc#1237571).
    - CVE-2025-21787: team: better TEAM_OPTION_TYPE_STRING validation (bsc#1238774).
    - CVE-2025-21814: ptp: Ensure info->enable callback is always set (bsc#1238473).
    - CVE-2025-22021: netfilter: socket: Lookup orig tuple for IPv6 SNAT (bsc#1241282).
    - CVE-2025-22027: media: streamzap: fix race between device disconnection and urb callback (bsc#1241369).
    - CVE-2025-22050: usbnet:fix NPE during rx_complete (bsc#1241441).
    - CVE-2025-22058: udp: Fix memory accounting leak (bsc#1241332).
    - CVE-2025-22060: net: mvpp2: Prevent parser TCAM memory corruption (bsc#1241526).
    - CVE-2025-22063: netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets (bsc#1241351).
    - CVE-2025-22104: ibmvnic: Use kernel helpers for hex dumps (bsc#1241550).
    - CVE-2025-23136: thermal: int340x: Add NULL check for adev (bsc#1241357).
    - CVE-2025-23150: ext4: fix off-by-one error in do_split (bsc#1242513).
    - CVE-2025-23161: PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type (bsc#1242792).
    - CVE-2025-37749: net: ppp: Add bound checking for skb data on ppp_sync_txmung (bsc#1242859).
    - CVE-2025-37752: net_sched: sch_sfq: move the limit validation (bsc#1242504).
    - CVE-2025-37780: isofs: Prevent the use of too small fid (bsc#1242786).
    - CVE-2025-37782: hfs/hfsplus: fix slab-out-of-bounds in hfs_bnode_read_key (bsc#1242770).
    - CVE-2025-37789: net: openvswitch: fix nested key length validation in the set() action (bsc#1242762).
    - CVE-2025-37794: wifi: mac80211: Purge vif txq in ieee80211_do_stop() (bsc#1242566).
    - CVE-2025-37796: wifi: at76c50x: fix use after free access in at76_disconnect (bsc#1242727).
    - CVE-2025-37797: net_sched: hfsc: Fix a UAF vulnerability in class handling (bsc#1242417).
    - CVE-2025-37823: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too (bsc#1242924).
    - CVE-2025-37833: net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads (bsc#1242868).
    - CVE-2025-37852: drm/amdgpu: handle amdgpu_cgs_create_device() errors in amd_powerplay_create()     (bsc#1243074).
    - CVE-2025-37879: 9p/net: fix improper handling of bogus negative read/write replies (bsc#1243077).
    - CVE-2025-37949: xenbus: Use kref to track req lifetime (bsc#1243541).
    - CVE-2025-37989: net: phy: leds: fix memory leak (bsc#1243511).
    - CVE-2025-38637: net_sched: skbprio: Remove overly strict queue assertions (bsc#1241657).


Tenable has extracted the preceding description block directly from the SUSE 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 remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:2394 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: GSM multiplexing race condition leads to privilege escalation (CVE-2023-6546)

    * kernel: multiple use-after-free vulnerabilities (CVE-2024-1086, CVE-2023-3567, CVE-2023-4133,     CVE-2023-6932, CVE-2023-39198, CVE-2023-51043, CVE-2023-51779, CVE-2023-51780, CVE-2024-1085,     CVE-2024-26582)

    * kernel: Bluetooth BR/EDR PIN Pairing procedure is vulnerable to an impersonation attack (CVE-2020-26555)

    * kernel: memcg does not limit the number of POSIX file locks allowing memory exhaustion (CVE-2022-0480)

    * kernel: multiple NULL pointer dereference vulnerabilities (CVE-2022-38096, CVE-2023-6622, CVE-2023-6915,     CVE-2023-42754, CVE-2023-46862, CVE-2023-52574, CVE-2024-0841, CVE-2023-52448)

    * kernel: integer overflow in l2cap_config_req() in net/bluetooth/l2cap_core.c (CVE-2022-45934)

    * kernel: netfilter: nf_tables: out-of-bounds access in nf_tables_newtable() (CVE-2023-6040)

    * kernel: GC's deletion of an SKB races with unix_stream_read_generic()  leading to UAF (CVE-2023-6531)

    * kernel: Out of boundary write in perf_read_group() as result of overflow a perf_event's read_size     (CVE-2023-6931)

    * kernel: Bluetooth Forward and Future Secrecy Attacks and Defenses (CVE-2023-24023)

    * kernel: irdma: Improper access control (CVE-2023-25775)

    * Kernel: double free in hci_conn_cleanup of the bluetooth subsystem (CVE-2023-28464)

    * kernel: Bluetooth: HCI: global out-of-bounds access in net/bluetooth/hci_sync.c (CVE-2023-28866)

    * kernel: race condition between HCIUARTSETPROTO and HCIUARTGETPROTO in hci_uart_tty_ioctl     (CVE-2023-31083)

    * kernel: multiple out-of-bounds read vulnerabilities (CVE-2023-37453, CVE-2023-39189, CVE-2023-39193,     CVE-2023-6121, CVE-2023-39194)

    * kernel: netfilter: race condition between IPSET_CMD_ADD and IPSET_CMD_SWAP (CVE-2023-42756)

    * kernel: lib/kobject.c vulnerable to fill_kobj_path out-of-bounds write (CVE-2023-45863)

    * kernel: smb: client: fix potential OOBs in smb2_parse_contexts() (CVE-2023-52434)

    * kernel: mm/sparsemem: fix race in accessing memory_section->usage (CVE-2023-52489)

    * kernel: net: fix possible store tearing in neigh_periodic_work() (CVE-2023-52522)

    * kernel: multiple memory leak vulnerabilities (CVE-2023-52529, CVE-2023-52581)

    * kernel: net: bridge: data races indata-races in br_handle_frame_finish() (CVE-2023-52578)

    * kernel: net/core: kernel crash in ETH_P_1588 flow dissector (CVE-2023-52580)

    * kernel: net/sched: act_ct: fix skb leak and crash on ooo frags (CVE-2023-52610)

    * kernel: CIFS Filesystem Decryption Improper Input Validation Remote Code Execution Vulnerability in     function receive_encrypted_standard of client (CVE-2024-0565)

    * kernel: tls: race between async notify and socket close (CVE-2024-26583)

    * kernel: tls: handle backlogging of crypto requests (CVE-2024-26584)

    * kernel: tls: race between tx work scheduling and socket close (CVE-2024-26585)

    * kernel: mlxsw: spectrum_acl_tcam: Fix stack corruption (CVE-2024-26586)

    * kernel: i2c: i801: Fix block process call transactions (CVE-2024-26593)

    * kernel: sched/membarrier: reduce the ability to hammer on sys_membarrier (CVE-2024-26602)

    * kernel: netfilter: nf_tables: reject QUEUE/DROP verdict parameters (CVE-2024-26609)

    * kernel: local dos vulnerability in scatterwalk_copychunks (CVE-2023-6176)

    * kernel: perf/x86/lbr: Filter vsyscall addresses (CVE-2023-52476)

    * kernel: netfilter: nf_tables: disallow timeout for anonymous sets (CVE-2023-52620)

    * kernel: ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim() (CVE-2024-26633)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.4 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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
249701	Linux Distros Unpatched Vulnerability : CVE-2023-53094	Nessus	Misc.	medium
240793	SUSE SLES12 Security Update : kernel (SUSE-SU-2025:01983-1)	Nessus	SuSE Local Security Checks	high
194794	RHEL 9 : kernel (RHSA-2024:2394)	Nessus	Red Hat Local Security Checks	critical

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