01 Record

CVE-2022-50344

ext4: fix null-ptr-deref in ext4_write_info

MediumPUBLISHEDCNA: Linux

CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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02 Description

ext4: fix null-ptr-deref in ext4_write_info

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 ImpactpartialSuccessful exploitation gives limited 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

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 5.0% 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 2026-06-17.

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

2025-09-16 16:11Z1 YR AGO

Last updated

2026-05-11 19:17Z5 MO AGO

Reserved

2025-09-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

71b229c8be56ef4682f1a3e4a3e3388641e3a1d80234910a255b613f407ddd42

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxa1177825719ccef3f76ef39bbfd5ebb6087d53c7 to < dc451578446afd03c0c21913993c08898a691435, a1177825719ccef3f76ef39bbfd5ebb6087d53c7 to < f4b5ff0b794aa94afac7269c494550ca2f66511b, a1177825719ccef3f76ef39bbfd5ebb6087d53c7 to < 947264e00c46de19a016fd81218118c708fed2f3, a1177825719ccef3f76ef39bbfd5ebb6087d53c7 to < 3638aa1c7d87c0ca0aef23cf58cae2c48e7daca4, a1177825719ccef3f76ef39bbfd5ebb6087d53c7 to < f34ab95162763cd7352f46df169296eec28b688d, a1177825719ccef3f76ef39bbfd5ebb6087d53c7 to < 533c60a0b97cee5daab376933f486207e6680fb7, a1177825719ccef3f76ef39bbfd5ebb6087d53c7 to < 4a657319cfabd6199fd0b7b65bbebf6ded7a11c1, a1177825719ccef3f76ef39bbfd5ebb6087d53c7 to < bb420e8afc854d2a1caaa23a0c129839acfb7888, a1177825719ccef3f76ef39bbfd5ebb6087d53c7 to < f9c1f248607d5546075d3f731e7607d5571f2b60, 3.6—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/dc451578446afd03c0c21913993c08898a691435
git.kernel.orghttps://git.kernel.org/stable/c/f4b5ff0b794aa94afac7269c494550ca2f66511b
git.kernel.orghttps://git.kernel.org/stable/c/947264e00c46de19a016fd81218118c708fed2f3
git.kernel.orghttps://git.kernel.org/stable/c/3638aa1c7d87c0ca0aef23cf58cae2c48e7daca4
git.kernel.orghttps://git.kernel.org/stable/c/f34ab95162763cd7352f46df169296eec28b688d
git.kernel.orghttps://git.kernel.org/stable/c/533c60a0b97cee5daab376933f486207e6680fb7
git.kernel.orghttps://git.kernel.org/stable/c/4a657319cfabd6199fd0b7b65bbebf6ded7a11c1
git.kernel.orghttps://git.kernel.org/stable/c/bb420e8afc854d2a1caaa23a0c129839acfb7888
git.kernel.orghttps://git.kernel.org/stable/c/f9c1f248607d5546075d3f731e7607d5571f2b60

07 Fixed in

Debian 12

linux
Fixed in 6.0.3-1

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

Debian 13

linux
Fixed in 6.0.3-1

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

Debian 14

linux
Fixed in 6.0.3-1

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