The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990775 advisory.

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

    net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler()

    When performing a stress test on SMC-R by rmmod mlx5_ib driver     during the wrk/nginx test, we found that there is a probability     of triggering a panic while terminating all link groups.

    This issue dues to the race between smc_smcr_terminate_all()     and smc_buf_create().

                            smc_smcr_terminate_all

    smc_buf_create     /* init */     conn->sndbuf_desc = NULL;
    ...

                            __smc_lgr_terminate                                     smc_conn_kill                                             smc_close_abort                                                     smc_cdc_get_slot_and_msg_send

                            __softirqentry_text_start                                     smc_wr_tx_process_cqe                                             smc_cdc_tx_handler                                                     READ(conn->sndbuf_desc->len);
                                                    /* panic dues to NULL sndbuf_desc */

    conn->sndbuf_desc = xxx;

    This patch tries to fix the issue by always to check the sndbuf_desc     before send any cdc msg, to make sure that no null pointer is     seen during cqe processing.

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.

An update of the linux package has been released.

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: net/smc: fix NULL sndbuf_desc in     smc_cdc_tx_handler() When performing a stress test on SMC-R by rmmod mlx5_ib driver during the wrk/nginx     test, we found that there is a probability of triggering a panic while terminating all link groups. This     issue dues to the race between smc_smcr_terminate_all() and smc_buf_create(). smc_smcr_terminate_all     smc_buf_create /* init */ conn->sndbuf_desc = NULL; ... __smc_lgr_terminate smc_conn_kill smc_close_abort     smc_cdc_get_slot_and_msg_send __softirqentry_text_start smc_wr_tx_process_cqe smc_cdc_tx_handler     READ(conn->sndbuf_desc->len); /* panic dues to NULL sndbuf_desc */ conn->sndbuf_desc = xxx; This patch     tries to fix the issue by always to check the sndbuf_desc before send any cdc msg, to make sure that no     null pointer is seen during cqe processing. (CVE-2023-53110)

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

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:6583 advisory.

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

    Security Fix(es):

    * kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails (CVE-2023-3609)

    * kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and     cls_route (CVE-2023-4128, CVE-2023-4206, CVE-2023-4207, CVE-2023-4208)

    * kernel: eBPF: insufficient stack type checks in dynptr (CVE-2023-39191)

    * Kernel: race when faulting a device private page in memory manager (CVE-2022-3523)

    * kernel: use-after-free in l1oip timer handlers (CVE-2022-3565)

    * kernel: Rate limit overflow messages in r8152 in intr_callback (CVE-2022-3594)

    * kernel: vmwgfx: use-after-free in vmw_cmd_res_check (CVE-2022-38457)

    * kernel: vmwgfx: use-after-free in vmw_execbuf_tie_context (CVE-2022-40133)

    * hw: Intel: Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982)

    * kernel: Information leak in l2cap_parse_conf_req in net/bluetooth/l2cap_core.c (CVE-2022-42895)

    * kernel: x86/mm: Randomize per-cpu entry area (CVE-2023-0597)

    * kernel: HID: check empty report_list in hid_validate_values() (CVE-2023-1073)

    * kernel: sctp: fail if no bound addresses can be used for a given scope (CVE-2023-1074)

    * kernel: hid: Use After Free in asus_remove() (CVE-2023-1079)

    * kernel: hash collisions in the IPv6 connection lookup table (CVE-2023-1206)

    * kernel: ovl: fix use after free in struct ovl_aio_req (CVE-2023-1252)

    * Kernel: use-after-free in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c (CVE-2023-1652)

    * kernel: Use after free bug in btsdio_remove due to race condition (CVE-2023-1989)

    * kernel: fbcon: shift-out-of-bounds in fbcon_set_font() (CVE-2023-3161)

    * kernel: out-of-bounds access in relay_file_read (CVE-2023-3268)

    * kernel: xfrm: NULL pointer dereference in xfrm_update_ae_params() (CVE-2023-3772)

    * kernel: xfrm: out-of-bounds read of XFRMA_MTIMER_THRESH nlattr (CVE-2023-3773)

    * kernel: KVM: SEV-ES / SEV-SNP VMGEXIT double fetch vulnerability (CVE-2023-4155)

    * kernel: exFAT: stack overflow in exfat_get_uniname_from_ext_entry (CVE-2023-4273)

    * kernel: mpls: double free on sysctl allocation failure (CVE-2023-26545)

    * kernel: KVM: nVMX: missing consistency checks for CR0 and CR4 (CVE-2023-30456)

    * kernel: net: qcom/emac: race condition leading to use-after-free in emac_remove() (CVE-2023-33203)

    * kernel: vmwgfx: race condition leading to information disclosure vulnerability (CVE-2023-33951)

    * kernel: vmwgfx: double free within the handling of vmw_buffer_object objects (CVE-2023-33952)

    * kernel: r592: race condition leading to use-after-free in r592_remove() (CVE-2023-35825)

    * kernel: net/tls: tls_is_tx_ready() checked list_entry (CVE-2023-1075)

    * kernel: tap: tap_open(): correctly initialize socket uid (CVE-2023-1076)

    * kernel: missing mmap_lock in file_files_note that could possibly lead to a use after free in the     coredump code (CVE-2023-1249)

    * kernel: use-after-free bug in remove function xgene_hwmon_remove (CVE-2023-1855)

    * kernel: Use after free bug in r592_remove (CVE-2023-3141)

    * kernel: gfs2: NULL pointer dereference in gfs2_evict_inode() (CVE-2023-3212)

    * kernel: NULL pointer dereference due to missing kalloc() return value check in     shtp_cl_get_dma_send_buf() (CVE-2023-3358)

    * kernel: tap: tap_open(): correctly initialize socket uid next fix of i_uid to current_fsuid     (CVE-2023-4194)

    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 9.3 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.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:7077 advisory.

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

    Security Fix(es):

    * kernel: tun: avoid double free in tun_free_netdev (CVE-2022-4744)

    * kernel: net/sched: multiple vulnerabilities (CVE-2023-3609, CVE-2023-3611, CVE-2023-4128, CVE-2023-4206,     CVE-2023-4207, CVE-2023-4208)

    * kernel: out-of-bounds write in qfq_change_class function (CVE-2023-31436)

    * kernel: out-of-bounds write in hw_atl_utils_fw_rpc_wait (CVE-2021-43975)

    * kernel: Rate limit overflow messages in r8152 in intr_callback (CVE-2022-3594)

    * kernel: use after free flaw in l2cap_conn_del (CVE-2022-3640)

    * kernel: double free in usb_8dev_start_xmit (CVE-2022-28388)

    * kernel: vmwgfx: multiple vulnerabilities (CVE-2022-38457, CVE-2022-40133, CVE-2023-33951,     CVE-2023-33952)

    * hw: Intel: Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982)

    * kernel: Information leak in l2cap_parse_conf_req (CVE-2022-42895)

    * kernel: KVM: multiple vulnerabilities (CVE-2022-45869, CVE-2023-4155, CVE-2023-30456)

    * kernel: memory leak in ttusb_dec_exit_dvb (CVE-2022-45887)

    * kernel: speculative pointer dereference in do_prlimit (CVE-2023-0458)

    * kernel: use-after-free due to race condition in qdisc_graft (CVE-2023-0590)

    * kernel: x86/mm: Randomize per-cpu entry area (CVE-2023-0597)

    * kernel: HID: check empty report_list in hid_validate_values (CVE-2023-1073)

    * kernel: sctp: fail if no bound addresses can be used for a given scope (CVE-2023-1074)

    * kernel: hid: Use After Free in asus_remove (CVE-2023-1079)

    * kernel: use-after-free in drivers/media/rc/ene_ir.c (CVE-2023-1118)

    * kernel: hash collisions in the IPv6 connection lookup table (CVE-2023-1206)

    * kernel: ovl: fix use after free in struct ovl_aio_req (CVE-2023-1252)

    * kernel: denial of service in tipc_conn_close (CVE-2023-1382)

    * kernel: Use after free bug in btsdio_remove due to race condition (CVE-2023-1989)

    * kernel: Spectre v2 SMT mitigations problem (CVE-2023-1998)

    * kernel: ext4: use-after-free in ext4_xattr_set_entry (CVE-2023-2513)

    * kernel: fbcon: shift-out-of-bounds in fbcon_set_font (CVE-2023-3161)

    * kernel: out-of-bounds access in relay_file_read (CVE-2023-3268)

    * kernel: xfrm: NULL pointer dereference in xfrm_update_ae_params (CVE-2023-3772)

    * kernel: smsusb: use-after-free caused by do_submit_urb (CVE-2023-4132)

    * kernel: Race between task migrating pages and another task calling exit_mmap (CVE-2023-4732)

    * Kernel: denial of service in atm_tc_enqueue due to type confusion (CVE-2023-23455)

    * kernel: mpls: double free on sysctl allocation failure (CVE-2023-26545)

    * kernel: Denial of service issue in az6027 driver (CVE-2023-28328)

    * kernel: lib/seq_buf.c has a seq_buf_putmem_hex buffer overflow (CVE-2023-28772)

    * kernel: blocking operation in dvb_frontend_get_event and wait_event_interruptible (CVE-2023-31084)

    * kernel: net: qcom/emac: race condition leading to use-after-free in emac_remove (CVE-2023-33203)

    * kernel: saa7134: race condition leading to use-after-free in saa7134_finidev (CVE-2023-35823)

    * kernel: dm1105: race condition leading to use-after-free in dm1105_remove.c (CVE-2023-35824)

    * kernel: r592: race condition leading to use-after-free in r592_remove (CVE-2023-35825)

    * kernel: net/tls: tls_is_tx_ready() checked list_entry (CVE-2023-1075)

    * kernel: use-after-free bug in remove function xgene_hwmon_remove (CVE-2023-1855)

    * kernel: Use after free bug in r592_remove (CVE-2023-3141)

    * kernel: gfs2: NULL pointer dereference in gfs2_evict_inode (CVE-2023-3212)

    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 8.9 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.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-993022 advisory.

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

    net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler()

    When performing a stress test on SMC-R by rmmod mlx5_ib driver     during the wrk/nginx test, we found that there is a probability     of triggering a panic while terminating all link groups.

    This issue dues to the race between smc_smcr_terminate_all()     and smc_buf_create().

                            smc_smcr_terminate_all

    smc_buf_create     /* init */     conn->sndbuf_desc = NULL;
    ...

                            __smc_lgr_terminate                                     smc_conn_kill                                             smc_close_abort                                                     smc_cdc_get_slot_and_msg_send

                            __softirqentry_text_start                                     smc_wr_tx_process_cqe                                             smc_cdc_tx_handler                                                     READ(conn->sndbuf_desc->len);
                                                    /* panic dues to NULL sndbuf_desc */

    conn->sndbuf_desc = xxx;

    This patch tries to fix the issue by always to check the sndbuf_desc     before send any cdc msg, to make sure that no null pointer is     seen during cqe processing.

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.

ID	Name	Product	Family	Published	Updated	Severity
275026	Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-990775)	Nessus	Unity Linux Local Security Checks	11/12/2025	8/29/2026	medium
151965	Photon OS 4.0: Linux PHSA-2021-4.0-0065	Nessus	PhotonOS Local Security Checks	7/22/2021	10/9/2026	high
246353	Linux Distros Unpatched Vulnerability : CVE-2023-53110	Nessus	Misc.	8/8/2025	9/30/2026	medium
194262	RHEL 9 : kernel (RHSA-2023:6583)	Nessus	Red Hat Local Security Checks	4/28/2024	10/28/2025	high
185679	RHEL 8 : kernel (RHSA-2023:7077)	Nessus	Red Hat Local Security Checks	11/14/2023	9/10/2025	high
280992	Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993022)	Nessus	Unity Linux Local Security Checks	12/31/2025	8/29/2026	medium

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