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CVE-2022-48867

21
FAUCET Score

CVE-2022-48867 is a use-after-free vulnerability in the Linux kernel's dmaengine IDXD driver. This flaw occurs during driver unload when pending descriptors are flushed, leading to a page fault as the memory for these descriptors has already been freed. With a CVSS score of 7.8 (HIGH), it allows a local attacker with low privileges to achieve high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.19, < 6.1.8CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.23%
Probability of exploitation in next 30 days
EPSS Percentile
14.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0023 is in the 46th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2022-48867Moderate

kernel: dmaengine: idxd: Prevent use after free on completion memory

Aug 21, 2024

References

git.kernel.org / stable/c/1beeec45f9ac31eba52478379f70a5fa9c2ad005
Patch
git.kernel.org / stable/c/b9e8e3fcfec625fc1c2f68f684448aeeb882625b
Patch