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CVE-2022-49409

17
FAUCET Score

CVE-2022-49409 is a vulnerability in the Linux kernel's ext4 filesystem, specifically within the extents status tree search function. It arises from an incorrect check for overlapping extents during quota file processing, leading to a kernel BUG_ON and system panic. Rated Medium severity (CVSS 5.5), this local vulnerability requires low privileges and local access to trigger 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
>= 3.2.55, < 3.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.4.76, < 3.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.10.26, < 3.11CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.12.7, < 3.13CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.13.1, < 5.4.277CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
18.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 73rd 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 (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-425.3.1.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-162.6.1.el9_1
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-49409Moderate

kernel: ext4: fix bug_on in __es_tree_search

Feb 26, 2025

References

git.kernel.org / stable/c/3c617827cd51018bc377bd2954e176920ddbcfad
Patch
git.kernel.org / stable/c/4fd58b5cf118d2d9038a0b8c9cc0e43096297686
Patch
git.kernel.org / stable/c/59cf2fabbfe76de29d88dd7ae69858a25735b59f
Patch
git.kernel.org / stable/c/d0083459e2b6b07ebd78bea2fe684a19cc0f3d0f
Patch
git.kernel.org / stable/c/d36f6ed761b53933b0b4126486c10d3da7751e7f
Patch
git.kernel.org / stable/c/ea6ea18b3ab0c0d7fefffb3c4d27df758b1c790a
Patch