{"id":"CVE-2026-98451","published":"2026-10-18T16:16:55.437","lastModified":"2026-10-19T10:18:54.320","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: use finish_no_open() for non-regular inodes\n\nAn O_CREAT open can find an existing symlink or another non-regular\ninode. cifs_atomic_open() calls finish_open() on it and attaches a\ncifsFileInfo. Symlink inodes have no CIFS release operation, so the\ndentry reference held by cifsFileInfo is leaked. FMODE_OPENED also\nprevents the VFS from following the symlink.\n\nTrack whether cifs_do_create() returned an open server handle. For\nnon-regular inodes, close the handle if present, remove the pending\nopen, and call finish_no_open() so the VFS can continue the lookup.\nDo not set FMODE_CREATED unless a regular file was opened. For\nO_NOFOLLOW with __O_REGULAR, return -ELOOP before the VFS's\n-EFTYPE check.\n\nDefer closing a legacy POSIX handle on a non-regular inode until\nafter inode lookup. This avoids closing it again if lookup fails.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/3c07deb26273155c180aedfd9041ab58015d2521","tags":[]},{"url":"https://git.kernel.org/stable/c/70a7918fda54a06d836acc91eb9a3c7e860fe0a0","tags":[]},{"url":"https://git.kernel.org/stable/c/e66cf1625ec4a3fe68346119f371def713fd0a4d","tags":[]},{"url":"https://git.kernel.org/stable/c/ed03d547598c92a036f20e89156540995cac889a","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}