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

  - scsi: target: core: Avoid smp_processor_id() in preemptible code The BUG message BUG: using     smp_processor_id() in preemptible [00000000] code was observed for TCMU devices with kernel config     DEBUG_PREEMPT. The message was observed when blktests block/005 was run on TCMU devices with fileio     backend or user:zbc backend [1]. The commit 1130b499b4a7 (scsi: target: tcm_loop: Use LIO wq cmd     submission helper) triggered the symptom. The commit modified work queue to handle commands and changed     'current->nr_cpu_allowed' at smp_processor_id() call. The message was also observed at system shutdown     when TCMU devices were not cleaned up [2]. The function smp_processor_id() was called in SCSI host work     queue for abort handling, and triggered the BUG message. This symptom was observed regardless of the     commit 1130b499b4a7 (scsi: target: tcm_loop: Use LIO wq cmd submission helper). To avoid the preemptible     code check at smp_processor_id(), get CPU ID with raw_smp_processor_id() instead. The CPU ID is used for     performance improvement then thread move to other CPU will not affect the code. [1] [ 56.468103] run     blktests block/005 at 2021-05-12 14:16:38 [ 57.369473] check_preemption_disabled: 85 callbacks suppressed     [ 57.369480] BUG: using smp_processor_id() in preemptible [00000000] code: fio/1511 [ 57.369506] BUG:
    using smp_processor_id() in preemptible [00000000] code: fio/1510 [ 57.369512] BUG: using     smp_processor_id() in preemptible [00000000] code: fio/1506 [ 57.369552] caller is
    __target_init_cmd+0x157/0x170 [target_core_mod] [ 57.369606] CPU: 4 PID: 1506 Comm: fio Not tainted     5.13.0-rc1+ #34 [ 57.369613] Hardware name: System manufacturer System Product Name/PRIME Z270-A, BIOS     1302 03/15/2018 [ 57.369617] Call Trace: [ 57.369621] BUG: using smp_processor_id() in preemptible     [00000000] code: fio/1507 [ 57.369628] dump_stack+0x6d/0x89 [ 57.369642]     check_preemption_disabled+0xc8/0xd0 [ 57.369628] caller is __target_init_cmd+0x157/0x170 [target_core_mod]     [ 57.369655] __target_init_cmd+0x157/0x170 [target_core_mod] [ 57.369695] target_init_cmd+0x76/0x90     [target_core_mod] [ 57.369732] tcm_loop_queuecommand+0x109/0x210 [tcm_loop] [ 57.369744]     scsi_queue_rq+0x38e/0xc40 [ 57.369761] __blk_mq_try_issue_directly+0x109/0x1c0 [ 57.369779]     blk_mq_try_issue_directly+0x43/0x90 [ 57.369790] blk_mq_submit_bio+0x4e5/0x5d0 [ 57.369812]     submit_bio_noacct+0x46e/0x4e0 [ 57.369830] __blkdev_direct_IO_simple+0x1a3/0x2d0 [ 57.369859] ?     set_init_blocksize.isra.0+0x60/0x60 [ 57.369880] generic_file_read_iter+0x89/0x160 [ 57.369898]     blkdev_read_iter+0x44/0x60 [ 57.369906] new_sync_read+0x102/0x170 [ 57.369929] vfs_read+0xd4/0x160 [     57.369941] __x64_sys_pread64+0x6e/0xa0 [ 57.369946] ? lockdep_hardirqs_on+0x79/0x100 [ 57.369958]     do_syscall_64+0x3a/0x70 [ 57.369965] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 57.369973] RIP:
    0033:0x7f7ed4c1399f [ 57.369979] Code: 08 89 3c 24 48 89 4c 24 18 e8 7d f3 ff ff 4c 8b 54 24 18 48 8b 54     24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 11 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24     e8 cd f3 ff ff 48 8b [ 57.369983] RSP: 002b:00007ffd7918c580 EFLAGS: 00000293 ORIG_RAX: 0000000000000011 [     57.369990] RAX: ffffffffffffffda RBX: 00000000015b4540 RCX: 00007f7ed4c1399f [ 57.369993] RDX:
    0000000000001000 RSI: 00000000015de000 RDI: 0000000000000009 [ 57.369996] RBP: 00000000015b4540 R08:
    0000000000000000 R09: 0000000000000001 [ 57.369999] R10: 0000000000e5c000 R11: 0000000000000293 R12:
    00007f7eb5269a70 [ 57.370002] R13: 0000000000000000 R14: 0000000000001000 R15: 00000000015b4568 [     57.370031] CPU: 7 PID: 1507 Comm: fio Not tainted 5.13.0-rc1+ #34 [ 57.370036] Hardware name: System     manufacturer System Product Name/PRIME Z270-A, BIOS 1302 03/15/2018 [ 57.370039] Call Trace: [ 57.370045]     dump_stack+0x6d/0x89 [ 57.370056] ch ---truncated--- (CVE-2021-47178)

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:1988 advisory.

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

    Security Fix(es):

    * kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)

    * kernel: avoid cyclic entity chains due to malformed USB descriptors (CVE-2020-0404)

    * kernel: speculation on incompletely validated data on IBM Power9 (CVE-2020-4788)

    * kernel: integer overflow in k_ascii() in drivers/tty/vt/keyboard.c (CVE-2020-13974)

    * kernel: out-of-bounds read in bpf_skb_change_head() of filter.c due to a use-after-free (CVE-2021-0941)

    * kernel: joydev: zero size passed to joydev_handle_JSIOCSBTNMAP() (CVE-2021-3612)

    * kernel: reading /proc/sysvipc/shm does not scale with large shared memory segment counts (CVE-2021-3669)

    * kernel: out-of-bound Read in qrtr_endpoint_post in net/qrtr/qrtr.c (CVE-2021-3743)

    * kernel: crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd() (CVE-2021-3744)

    * kernel: possible use-after-free in bluetooth module (CVE-2021-3752)

    * kernel: unaccounted ipc objects in Linux kernel lead to breaking memcg limits and DoS attacks     (CVE-2021-3759)

    * kernel: DoS in ccp_run_aes_gcm_cmd() function (CVE-2021-3764)

    * kernel: sctp: Invalid chunks may be used to remotely remove existing associations (CVE-2021-3772)

    * kernel: lack of port sanity checking in natd and netfilter leads to exploit of OpenVPN clients     (CVE-2021-3773)

    * kernel: possible leak or coruption of data residing on hugetlbfs (CVE-2021-4002)

    * kernel: security regression for CVE-2018-13405 (CVE-2021-4037)

    * kernel: Buffer overwrite in decode_nfs_fh function (CVE-2021-4157)

    * kernel: cgroup: Use open-time creds and namespace for migration perm checks (CVE-2021-4197)

    * kernel: Race condition in races in sk_peer_pid and sk_peer_cred accesses (CVE-2021-4203)

    * kernel: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies (CVE-2021-20322)

    * kernel: arm: SIGPAGE information disclosure vulnerability (CVE-2021-21781)

    * hw: cpu: LFENCE/JMP Mitigation Update for CVE-2017-5715 (CVE-2021-26401)

    * kernel: Local privilege escalation due to incorrect BPF JIT branch displacement computation     (CVE-2021-29154)

    * kernel: use-after-free in hso_free_net_device() in drivers/net/usb/hso.c (CVE-2021-37159)

    * kernel: eBPF multiplication integer overflow in prealloc_elems_and_freelist() in kernel/bpf/stackmap.c     leads to out-of-bounds write (CVE-2021-41864)

    * kernel: Heap buffer overflow in firedtv driver (CVE-2021-42739)

    * kernel: ppc: kvm: allows a malicious KVM guest to crash the host (CVE-2021-43056)

    * kernel: an array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (CVE-2021-43389)

    * kernel: mwifiex_usb_recv() in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker to cause DoS     via crafted USB device (CVE-2021-43976)

    * kernel: use-after-free in the TEE subsystem (CVE-2021-44733)

    * kernel: information leak in the IPv6 implementation (CVE-2021-45485)

    * kernel: information leak in the IPv4 implementation (CVE-2021-45486)

    * hw: cpu: intel: Branch History Injection (BHI) (CVE-2022-0001)

    * hw: cpu: intel: Intra-Mode BTI (CVE-2022-0002)

    * kernel: Local denial of service in bond_ipsec_add_sa (CVE-2022-0286)

    * kernel: DoS in sctp_addto_chunk in net/sctp/sm_make_chunk.c (CVE-2022-0322)

    * kernel: FUSE allows UAF reads of write() buffers, allowing theft of (partial) /etc/shadow hashes     (CVE-2022-1011)

    * kernel: use-after-free in nouveau kernel module (CVE-2020-27820)

    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 8.6 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
229788	Linux Distros Unpatched Vulnerability : CVE-2021-47178	Nessus	Misc.	3/5/2025	8/30/2025	medium
161047	RHEL 8 : kernel (RHSA-2022:1988)	Nessus	Red Hat Local Security Checks	5/11/2022	8/15/2025	critical

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