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THREAT OPS › Threat News › [NVD] CVE-2026-31449 (HIGH 7.8) — In the Linux kernel, the following vulnerability has been resolved: ext4: validate p_idx bounds in ext4_ext_correct_indexes ext4_ext_correct_indexes() walks up the extent tree correcting index entries when the first extent in a leaf is modified. Before accessing path[k].p_idx->

[NVD] CVE-2026-31449 (HIGH 7.8) — In the Linux kernel, the following vulnerability has been resolved: ext4: validate p_idx bounds in ext4_ext_correct_indexes ext4_ext_correct_indexes() walks up the extent tree correcting index entries when the first extent in a leaf is modified. Before accessing path[k].p_idx->

lownvdPublished 2026-04-22

CVE-2026-31449 CVSS: 7.8 HIGH Published: 2026-04-22T14:16:38.933

In the Linux kernel, the following vulnerability has been resolved:

ext4: validate p_idx bounds in ext4_ext_correct_indexes

ext4_ext_correct_indexes() walks up the extent tree correcting index entries when the first extent in a leaf is modified. Before accessing path[k].p_idx->ei_block, there is no validation that p_idx falls with

Indicators of compromise

CVE-2026-31449cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-31449