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CVE-2022-48895

5.5 · MEDIUM
Published Aug 21, 2024 linux CWE-476 EPSS 0.21% (11th pctl)

Overview

CVE-2022-48895 is a medium-severity vulnerability affecting linux linux_kernel. It was published on August 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

iommu/arm-smmu: Don't unregister on shutdown

Michael Walle says he noticed the following stack trace while performing

a shutdown with "reboot -f". He suggests he got "lucky" and just hit the

correct spot for the reboot while there was a packet transmission in

flight.

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000098

CPU: 0 PID: 23 Comm: kworker/0:1 Not tainted 6.1.0-rc5-00088-gf3600ff8e322 #1930

Hardware name: Kontron KBox A-230-LS (DT)

pc : iommu_get_dma_domain+0x14/0x20

lr : iommu_dma_map_page+0x9c/0x254

Call trace:

iommu_get_dma_domain+0x14/0x20

dma_map_page_attrs+0x1ec/0x250

enetc_start_xmit+0x14c/0x10b0

enetc_xmit+0x60/0xdc

dev_hard_start_xmit+0xb8/0x210

sch_direct_xmit+0x11c/0x420

__dev_queue_xmit+0x354/0xb20

ip6_finish_output2+0x280/0x5b0

__ip6_finish_output+0x15c/0x270

ip6_output+0x78/0x15c

NF_HOOK.constprop.0+0x50/0xd0

mld_sendpack+0x1bc/0x320

mld_ifc_work+0x1

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 6.1, < 6.1.7 Affected

Frequently Asked Questions

What is CVE-2022-48895?

CVE-2022-48895 is a medium-severity vulnerability affecting linux linux_kernel. It was published on August 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-48895?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-48895?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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-2022-48895?

CyberStrike's AI-powered security agents can automatically detect CVE-2022-48895 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.