CVE-2026-89837

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

Description A memory leak occurs in the f2fs file system within the find in level() function. The function acquires a dentry folio using f2fs find data folio() before calling find in block(). If find in block() returns an error, the function stores this error in res folio and exits the loop without releasing the dentry folio, leading to a folio reference leak.

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