CVE-2021-3428

A flaw was found in the Linux kernel. A denial of service problem is identified if an extent tree is corrupted in a crafted ext4 filesystem in fs/ext4/extents.c in ext4_es_cache_extent. Fabricating an integer overflow, A local attacker with a special user privilege may cause a system crash problem which can lead to an availability threat.

• CWE-190
• CWE-190

• https://bugzilla.redhat.com/show_bug.cgi?id=1972621Issue Tracking, Permissions Required, Third Party Advisory
• https://ubuntu.com/security/CVE-2021-3428Third Party Advisory
• https://www.openwall.com/lists/oss-security/2021/03/17/1Mailing List, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1972621Issue Tracking, Permissions Required, Third Party Advisory
• https://ubuntu.com/security/CVE-2021-3428Third Party Advisory
• https://www.openwall.com/lists/oss-security/2021/03/17/1Mailing List, Third Party Advisory

Published

Mar 4, 2022

Last Modified

Jun 17, 2026

Status

Modified

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