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CVE-2022-48988

19
FAUCET Score

CVE-2022-48988 is a use-after-free vulnerability in the Linux kernel's memory cgroup (memcg) subsystem, specifically within the memcg_write_event_control() function. This flaw allows arbitrary files to bypass a critical type check, leading to potential race conditions during file renames or removals. Rated 7.0 HIGH (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H), successful exploitation could result in high impact to confidentiality, integrity, and availability. There is currently no public exploit code, active exploitation, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.14, < 4.14.302CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.269CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.227CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.159CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.83CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.0HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
15.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 44th percentile among its peer group of 1,525 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-513.5.1.el8_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-362.8.1.el9_3
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-48988Moderate

kernel: memcg: fix possible use-after-free in memcg_write_event_control()

Oct 21, 2024

References

git.kernel.org / stable/c/0ed074317b835caa6c03bcfa8f133365324673dc
Patch
git.kernel.org / stable/c/35963b31821920908e397146502066f6b032c917
Patch
git.kernel.org / stable/c/4a7ba45b1a435e7097ca0f79a847d0949d0eb088
Patch
git.kernel.org / stable/c/aad8bbd17a1d586005feb9226c2e9cfce1432e13
Patch
git.kernel.org / stable/c/b77600e26fd48727a95ffd50ba1e937efb548125
Patch
git.kernel.org / stable/c/e1ae97624ecf400ea56c238bff23e5cd139df0b8
Patch
git.kernel.org / stable/c/f1f7f36cf682fa59db15e2089039a2eeb58ff2ad
Patch