In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: Fix crash on hci_create_cis_sync When attempting to connect multiple ISO sockets without using DEFER_SETUP may result in the following crash: BUG: KASAN: null-ptr-deref in hci_create_cis_sync+0x18b/0x2b0 Read of size 2 at addr 0000000000000036 by task kworker/u3:1/50 CPU: 0 PID: 50 Comm: kworker/u3:1 Not tainted 6.0.0-rc7-02243-gb84a13ff4eda #4373 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-1.fc36 04/01/2014 Workqueue: hci0 hci_cmd_sync_work Call Trace: <TASK> dump_stack_lvl+0x19/0x27 kasan_report+0xbc/0xf0 ? hci_create_cis_sync+0x18b/0x2b0 hci_create_cis_sync+0x18b/0x2b0 ? get_link_mode+0xd0/0xd0 ? __ww_mutex_lock_slowpath+0x10/0x10 ? mutex_lock+0xe0/0xe0 ? get_link_mode+0xd0/0xd0 hci_cmd_sync_work+0x111/0x190 process_one_work+0x427/0x650 worker_thread+0x87/0x750 ? process_one_work+0x650/0x650 kthread+0x14e/0x180 ? kthread_exit+0x50/0x50 ret_from_fork+0x22/0x30 </TASK>

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:0535 advisory.

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

    Security Fix(es):

    * kernel: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() (CVE-2025-38724)

    * kernel: smb: client: fix race with concurrent opens in rename(2) (CVE-2025-39825)

    * kernel: can: j1939: implement NETDEV_UNREGISTER notification handler (CVE-2025-39925)

    * kernel: Bluetooth: hci_conn: Fix crash on hci_create_cis_sync (CVE-2022-50447)

    * kernel: RDMA/rxe: Fix incomplete state save in rxe_requester (CVE-2023-53539)

    * kernel: NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL (CVE-2023-53680)

    * kernel: scsi: ses: Fix possible desc_ptr out-of-bounds accesses (CVE-2023-53675)

    * kernel: Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync (CVE-2025-39982)

    * kernel: tls: wait for pending async decryptions if tls_strp_msg_hold fails (CVE-2025-40176)

    * kernel: usb: dwc3: Fix race condition between concurrent dwc3_remove_requests() call paths     (CVE-2025-68287)

    * kernel: libceph: fix potential use-after-free in have_mon_and_osd_map() (CVE-2025-68285)

    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.

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 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:0534 advisory.

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with     extremely high determinism requirements.

    Security Fix(es):

    * kernel: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() (CVE-2025-38724)

    * kernel: smb: client: fix race with concurrent opens in rename(2) (CVE-2025-39825)

    * kernel: can: j1939: implement NETDEV_UNREGISTER notification handler (CVE-2025-39925)

    * kernel: Bluetooth: hci_conn: Fix crash on hci_create_cis_sync (CVE-2022-50447)

    * kernel: RDMA/rxe: Fix incomplete state save in rxe_requester (CVE-2023-53539)

    * kernel: NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL (CVE-2023-53680)

    * kernel: scsi: ses: Fix possible desc_ptr out-of-bounds accesses (CVE-2023-53675)

    * kernel: Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync (CVE-2025-39982)

    * kernel: tls: wait for pending async decryptions if tls_strp_msg_hold fails (CVE-2025-40176)

    * kernel: usb: dwc3: Fix race condition between concurrent dwc3_remove_requests() call paths     (CVE-2025-68287)

    * kernel: libceph: fix potential use-after-free in have_mon_and_osd_map() (CVE-2025-68285)

    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.

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 SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03615-1 advisory.

    The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2022-49138: Bluetooth: hci_event: Fix checking conn for le_conn_complete_evt (bsc#1238160).
    - CVE-2022-50233: Bluetooth: eir: Fix using strlen with hdev->{dev_name,short_name} (bsc#1246968).
    - CVE-2022-50252: igb: Do not free q_vector unless new one was allocated (bsc#1249846).
    - CVE-2022-50409: net: If sock is dead do not access sock's sk_wq in sk_stream_wait_memory (bsc#1250392).
    - CVE-2023-53178: mm: fix zswap writeback race condition (bsc#1249827).
    - CVE-2023-53257: wifi: mac80211: check S1G action frame size (bsc#1249869).
    - CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250313).
    - CVE-2023-53438: x86/MCE: Always save CS register on AMD Zen IF Poison errors (bsc#1250180).
    - CVE-2025-37738: ext4: ignore xattrs past end (bsc#1242846).
    - CVE-2025-37958: mm/huge_memory: fix dereferencing invalid pmd migration entry (bsc#1243539).
    - CVE-2025-38014: dmaengine: idxd: Refactor remove call with idxd_cleanup() helper (bsc#1244732).
    - CVE-2025-38111: net/mdiobus: Fix potential out-of-bounds read/write access (bsc#1245666).
    - CVE-2025-38380: i2c/designware: Fix an initialization issue (bsc#1247028).
    - CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247239).
    - CVE-2025-38553: net/sched: Restrict conditions for adding duplicating netems to qdisc tree     (bsc#1248255).
    - CVE-2025-38572: ipv6: reject malicious packets in ipv6_gso_segment() (bsc#1248399).
    - CVE-2025-38659: gfs2: No more self recovery (bsc#1248639).
    - CVE-2025-38664: ice: Fix a null pointer dereference in ice_copy_and_init_pkg() (bsc#1248628).
    - CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates (bsc#1249126).
    - CVE-2025-38685: fbdev: Fix vmalloc out-of-bounds write in fast_imageblit (bsc#1249220).
    - CVE-2025-38706: ASoC: core: Check for rtd == NULL in snd_soc_remove_pcm_runtime() (bsc#1249195).
    - CVE-2025-38713: hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc() (bsc#1249200).
    - CVE-2025-38734: net/smc: fix UAF on smcsk after smc_listen_out() (bsc#1249324).
    - CVE-2025-39691: fs/buffer: fix use-after-free when call bh_read() helper (bsc#1249374).
    - CVE-2025-39703: net, hsr: reject HSR frame if skb can't hold tag (bsc#1249315).
    - CVE-2025-39726: s390/ism: fix concurrency management in ism_cmd() (bsc#1249266).
    - CVE-2025-39746: wifi: ath10k: shutdown driver when hardware is unreliable (bsc#1249516).
    - CVE-2025-39751: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control (bsc#1249538).
    - CVE-2025-39790: bus: mhi: host: Detect events pointing to unexpected TREs (bsc#1249548).
    - CVE-2025-39823: KVM: x86: use array_index_nospec with indices that come from guest (bsc#1250002).
    - CVE-2025-39824: HID: asus: fix UAF via HID_CLAIMED_INPUT validation (bsc#1250007).
    - CVE-2025-39860: Bluetooth: Fix use-after-free in l2cap_sock_cleanup_listen() (bsc#1250247).
    - CVE-2025-39869: dmaengine: ti: edma: Fix memory allocation size for queue_priority_map (bsc#1250406).


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 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: Bluetooth: hci_conn: Fix crash on     hci_create_cis_sync When attempting to connect multiple ISO sockets without using DEFER_SETUP may result     in the following crash: BUG: KASAN: null-ptr-deref in hci_create_cis_sync+0x18b/0x2b0 Read of size 2 at     addr 0000000000000036 by task kworker/u3:1/50 CPU: 0 PID: 50 Comm: kworker/u3:1 Not tainted     6.0.0-rc7-02243-gb84a13ff4eda #4373 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-1.fc36     04/01/2014 Workqueue: hci0 hci_cmd_sync_work Call Trace: <TASK> dump_stack_lvl+0x19/0x27     kasan_report+0xbc/0xf0 ? hci_create_cis_sync+0x18b/0x2b0 hci_create_cis_sync+0x18b/0x2b0 ?     get_link_mode+0xd0/0xd0 ? __ww_mutex_lock_slowpath+0x10/0x10 ? mutex_lock+0xe0/0xe0 ?     get_link_mode+0xd0/0xd0 hci_cmd_sync_work+0x111/0x190 process_one_work+0x427/0x650     worker_thread+0x87/0x750 ? process_one_work+0x650/0x650 kthread+0x14e/0x180 ? kthread_exit+0x50/0x50     ret_from_fork+0x22/0x30 </TASK> (CVE-2022-50447)

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

ID	Name	Product	Family	Severity
283684	RHEL 9 : kernel (RHSA-2026:0535)	Nessus	Red Hat Local Security Checks	high
283682	RHEL 9 : kernel-rt (RHSA-2026:0534)	Nessus	Red Hat Local Security Checks	high
270837	SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2025:03615-1)	Nessus	SuSE Local Security Checks	high
269573	Linux Distros Unpatched Vulnerability : CVE-2022-50447	Nessus	Misc.	medium

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CVE-2022-50447

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