01 Record

CVE-2022-49174

ext4: fix ext4_mb_mark_bb() with flex_bg with fast_commit

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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02 Description

ext4: fix ext4_mb_mark_bb() with flex_bg with fast_commit

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 20.6% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-10-15.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published: 2025-02-26 01:55Z1 YR AGO
Last updated: 2026-10-15 21:21Z13 DAYS AGO
Reserved: 2025-02-26
Assigning CNA: Linux
Record state: PUBLISHED
Severity: High (CVSS 7.8)
CNA CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses: No CWE assigned
Data version: 5.2
Document digest: 5fce1ffab522880954d05ce59d03ced8eb8ac1f91dae92bd88be9ce0ee3befed

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 to < cd6d719534af993210306f8a13f9cb3e615f7c8d, 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 to < 6a6beb074186a0452368a023a261c7d0eaebe838, 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 to < b07eedd0222e9548ffc568ec429bb1f61d21a39c, 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 to < 803fb0e8240cc16585a5c9df76add1dfaa781773, 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 to < bfdc502a4a4c058bf4cbb1df0c297761d528f54d, 5.10—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/cd6d719534af993210306f8a13f9cb3e615f7c8d
git.kernel.orghttps://git.kernel.org/stable/c/6a6beb074186a0452368a023a261c7d0eaebe838
git.kernel.orghttps://git.kernel.org/stable/c/b07eedd0222e9548ffc568ec429bb1f61d21a39c
git.kernel.orghttps://git.kernel.org/stable/c/803fb0e8240cc16585a5c9df76add1dfaa781773
git.kernel.orghttps://git.kernel.org/stable/c/bfdc502a4a4c058bf4cbb1df0c297761d528f54d

07 Fixed in

Debian 12

linux
Fixed in 5.17.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 5.17.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 5.17.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.