PT-2026-34354 · Linux · Linux Kernel
Published
2026-04-22
·
Updated
2026-06-05
·
CVE-2026-31449
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists in the
ext4 ext correct indexes() function, which corrects index entries when the first extent in a leaf is modified. The function fails to validate that the p idx pointer falls within the valid range of index entries for the current level before accessing path[k].p idx->ei block. If the on-disk extent header contains a crafted or corrupted eh entries value, p idx can point beyond the allocated buffer, leading to a slab-out-of-bounds read (a memory access error where the system reads data outside the boundaries of a slab-allocated memory chunk).Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel