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CVE-2022-50436

20
FAUCET Score

CVE-2022-50436 is a medium-severity vulnerability affecting the Linux kernel's ext4 filesystem. It stems from an extended transaction scope in the ext4_unlink() function, which could lead to a deadlock when ext4_find_entry() attempts to set up a directory's encryption key within that transaction. With a CVSS score of 5.5 (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H), this local vulnerability could result in a denial of service. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.10.1, < 5.10.163CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.87CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.0.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.1, < 6.1.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
5.10CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*

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
0.10%
Probability of exploitation in next 30 days
EPSS Percentile
0.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0009 is in the 5th 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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-284.11.1.el9_2
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-50436Moderate

kernel: ext4: don't set up encryption key during jbd2 transaction

Oct 1, 2025

References

git.kernel.org / stable/c/1ba993208bcfd691e241483420a2a761d3f15750
Patch
git.kernel.org / stable/c/206dd3acfb9bca54a25b228c7c7c2257eedde09b
Patch
git.kernel.org / stable/c/23ad034760dd38e12b0e0e1b28b9629f330810a1
Patch
git.kernel.org / stable/c/4c0d5778385cb3618ff26a561ce41de2b7d9de70
Patch
git.kernel.org / stable/c/6220ec405571ded17efedc56587190b542adf246
Patch