CVE-2026-31463

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the iomap component where invalid folio access occurs when i blkbits differs from the I/O granularity. In cases where the folio size matches 1 << inode->i blkbits but differs from the I/O granularity, I/O can be submitted for less than the full folio. Consequently, the iomap read folio iter() function fails to invalidate ctx->cur folio, leading iomap read end() to be called on a folio that is still owned by the I/O helper.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.