HomeDefectsLIN1025-25694
Acknowledged

LIN1025-25694 : Security Advisory - linux - CVE-2026-98921

Created: Oct 23, 2026    Updated: Oct 27, 2026
Resolved Date: Oct 23, 2026
Found In Version: 10.25.33.2
Severity: Standard
Applicable for: Wind River Linux LTS 25
Component/s: Kernel

Description

In the Linux kernel, the following vulnerability has been resolved:  ovl: fix UAF in ovl_do_mkdir() debug print  ovl_do_mkdir() prints the input dentry with %pd after vfs_mkdir(). Since commit fe497f0759e0 ("VFS: change vfs_mkdir() to unlock on failure."), vfs_mkdir() calls end_creating() on the input dentry on failure and may replace it on success, so the post-call %pd can use-after-free the dentry when CONFIG_OVERLAY_FS_DEBUG is enabled.  Print the dentry before the call and only the result afterward.