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

  - loop: implement ->free_disk Ensure that the lo_device which is stored in the gendisk private data is valid     until the gendisk is freed. Currently the loop driver uses a lot of effort to make sure a device is not     freed when it is still in use, but to to fix a potential deadlock this will be relaxed a bit soon.
    (CVE-2022-49531)

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-2022:8267 advisory.

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

    Security Fix(es):

    * off-path attacker may inject data or terminate victim's TCP session (CVE-2020-36516)

    * use-after-free vulnerability in function sco_sock_sendmsg() (CVE-2021-3640)

    * smb2_ioctl_query_info NULL pointer dereference (CVE-2022-0168)

    * NULL pointer dereference in udf_expand_file_adinicbdue() during writeback (CVE-2022-0617)

    * swiotlb information leak with DMA_FROM_DEVICE (CVE-2022-0854)

    * uninitialized registers on stack in nft_do_chain can cause kernel pointer leakage to UM (CVE-2022-1016)

    * race condition in snd_pcm_hw_free leading to use-after-free (CVE-2022-1048)

    * use-after-free and memory errors in ext4 when mounting and operating on a corrupted image     (CVE-2022-1184)

    * concurrency use-after-free between drm_setmaster_ioctl and drm_mode_getresources (CVE-2022-1280)

    * kernel info leak issue in pfkey_register (CVE-2022-1353)

    * use-after-free in ath9k_htc_probe_device() could cause an escalation of privileges (CVE-2022-1679)

    * NULL pointer dereference in x86_emulate_insn may lead to DoS (CVE-2022-1852)

    * fanotify misuses fd_install() which could lead to use-after-free (CVE-2022-1998)

    * nf_tables cross-table potential use-after-free may lead to local privilege escalation (CVE-2022-2586)

    * integer underflow leads to out-of-bounds write in reserve_sfa_size() (CVE-2022-2639)

    * slab-out-of-bounds access in packet_recvmsg() (CVE-2022-20368)

    * incomplete clean-up of multi-core shared buffers (aka SBDR) (CVE-2022-21123)

    * incomplete clean-up of microarchitectural fill buffers (aka SBDS) (CVE-2022-21125)

    * incomplete clean-up in specific special register write operations (aka DRPW) (CVE-2022-21166)

    * possible to use the debugger to write zero into a location of choice (CVE-2022-21499)

    * AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-23816,     CVE-2022-29900)

    * AMD: Branch Type Confusion (non-retbleed) (CVE-2022-23825)

    * Intel: Post-barrier Return Stack Buffer Predictions (CVE-2022-26373)

    * double free in ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c (CVE-2022-28390)

    * use after free in SUNRPC subsystem (CVE-2022-28893)

    * use-after-free due to improper update of reference count in net/sched/cls_u32.c (CVE-2022-29581)

    * Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-29901)

    * DoS in nfqnl_mangle in net/netfilter/nfnetlink_queue.c (CVE-2022-36946)

    * nf_tables disallow binding to already bound chain (CVE-2022-39190)

    * nfs_atomic_open() returns uninitialized data instead of ENOTDIR (CVE-2022-24448)

    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 9.1 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	Published	Updated	Severity
226341	Linux Distros Unpatched Vulnerability : CVE-2022-49531	Nessus	Misc.	3/5/2025	2/6/2026	medium
167620	RHEL 9 : kernel (RHSA-2022:8267)	Nessus	Red Hat Local Security Checks	11/16/2022	9/12/2025	high

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