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CVE-2022-48753

17
FAUCET Score

CVE-2022-48753 is a memory leak vulnerability in the Linux kernel's block subsystem, specifically within the disk_register_independent_access_ranges function. This flaw occurs because kobject_init_and_add() takes a reference even on failure, requiring a subsequent kobject_put() call for proper cleanup, which was missing. Rated Medium (CVSS 5.5), an attacker with local, low-privilege access could exploit this to cause a denial of service (high impact on availability). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.16, < 5.16.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
5.17CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
7.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 41st percentile among its peer group of 15,940 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2022-48753Low

kernel: block: fix memory leak in disk_register_independent_access_ranges

Jun 20, 2024

References

git.kernel.org / stable/c/83114df32ae779df57e0af99a8ba6c3968b2ba3d
Patch
git.kernel.org / stable/c/fe4214a07e0b53d2af711f57519e33739c5df23f
Patch