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CVE-2022-50329

25
FAUCET Score

CVE-2022-50329 is a Use-After-Free (UAF) vulnerability in the Linux kernel's block and BFQ (Budget Fair Queueing) subsystems, specifically affecting the bfq_exit_icq_bfqq function. This flaw, rated High severity with a CVSS score of 7.8, could allow 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
5.15.86CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.15.86:*:*:*:*:*:*:*
6.0.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.0.16:*:*:*:*:*:*:*
6.1.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.1.2:*:*:*:*:*:*:*
6.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
>= 5.15.86, < 5.15.87CPE match
cpe:2.3:a: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
0.15%
Probability of exploitation in next 30 days
EPSS Percentile
4.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0015 is in the 22nd 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

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-362.8.1.el9_3
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-50329Moderate

kernel: Linux kernel: Denial of Service due to use-after-free in BFQ scheduler

Sep 15, 2025

References

git.kernel.org / stable/c/1425f1bb5df5239021fd09ebc2a5e8070e705d36
Patch
git.kernel.org / stable/c/1ed959fef5b1c6f1a7a3fbea543698c30ebd6678
Patch
git.kernel.org / stable/c/246cf66e300b76099b5dbd3fdd39e9a5dbc53f02
Patch
git.kernel.org / stable/c/7949b0df3dd9f4817ed4a4e989fa9ee81df6205f
Patch
git.kernel.org / stable/c/cfe5b38c37720313eff0dec5517442c7ab3c9a20
Patch