{"id":"CVE-2026-98921","published":"2026-10-23T13:17:12.733","lastModified":"2026-10-23T13:17:12.733","description":"In the Linux kernel, the following vulnerability has been resolved:\n\novl: fix UAF in ovl_do_mkdir() debug print\n\novl_do_mkdir() prints the input dentry with %pd after vfs_mkdir().\nSince commit fe497f0759e0 (\"VFS: change vfs_mkdir() to unlock on\nfailure.\"), vfs_mkdir() calls end_creating() on the input dentry on\nfailure and may replace it on success, so the post-call %pd can\nuse-after-free the dentry when CONFIG_OVERLAY_FS_DEBUG is enabled.\n\nPrint the dentry before the call and only the result afterward.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/719bd33ab359c539a68a278c15a97deb77565cdb","tags":[]},{"url":"https://git.kernel.org/stable/c/ae146bc1abdeb4607abf2975b858c053024e8ac1","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}