CVE-2026-98005
kernel: erofs: delimit inode_share cache key components
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 25, 2026
Updated · September 29, 2026
Description
A flaw was found in the Linux kernel's EROFS (Enhanced Read-Only File System) component. Due to a missing delimiter between the domain identifier and fingerprint when generating cache keys for shared inodes, the resulting cache entries are ambiguous. A local user could exploit this ambiguity to cause cache key collisions, which may lead to improper inode sharing or unauthorized data access across domains.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-694 · Use of Multiple Resources with Duplicate Identifier