Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2022-49720

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: block: Fix handling of offline queues in blk_mq_alloc_request_hctx() This patch prevents that test nvme/004 triggers the follow…

Published Feb 26, 2025CWE-129EPSS 0.30%

Overview

CVE-2022-49720 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

block: Fix handling of offline queues in blk_mq_alloc_request_hctx()

This patch prevents that test nvme/004 triggers the following:

UBSAN: array-index-out-of-bounds in block/blk-mq.h:135:9

index 512 is out of range for type 'long unsigned int [512]'

Call Trace:

show_stack+0x52/0x58

dump_stack_lvl+0x49/0x5e

dump_stack+0x10/0x12

ubsan_epilogue+0x9/0x3b

__ubsan_handle_out_of_bounds.cold+0x44/0x49

blk_mq_alloc_request_hctx+0x304/0x310

__nvme_submit_sync_cmd+0x70/0x200 [nvme_core]

nvmf_connect_io_queue+0x23e/0x2a0 [nvme_fabrics]

nvme_loop_connect_io_queues+0x8d/0xb0 [nvme_loop]

nvme_loop_create_ctrl+0x58e/0x7d0 [nvme_loop]

nvmf_create_ctrl+0x1d7/0x4d0 [nvme_fabrics]

nvmf_dev_write+0xae/0x111 [nvme_fabrics]

vfs_write+0x144/0x560

ksys_write+0xb7/0x140

__x64_sys_write+0x42/0x50

do_syscall_64+0x35/0x80

entry_SYSCALL_64_after_hwframe+0x44/0xae

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/14dc7a18abbe4176f5626c13c333670da8e06aa1Refgit.kernel.org/stable/c/7fa28a7c3d74933a4fc22d341b60927952f31c19Refgit.kernel.org/stable/c/b202a0bd2580ee5b0453772c46d464152fafff73Refgit.kernel.org/stable/c/b5e65ef044d627effdc2599040b6d204e003f955

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49720?

CVE-2022-49720 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-49720?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49720?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49720?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49720 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2022

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999