CVE-2023-53420

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> ntfs: Fix panic about slab-out-of-bounds caused by ntfs_listxattr()<br /> <br /> Here is a BUG report from syzbot:<br /> <br /> BUG: KASAN: slab-out-of-bounds in ntfs_list_ea fs/ntfs3/xattr.c:191 [inline]<br /> BUG: KASAN: slab-out-of-bounds in ntfs_listxattr+0x401/0x570 fs/ntfs3/xattr.c:710<br /> Read of size 1 at addr ffff888021acaf3d by task syz-executor128/3632<br /> <br /> Call Trace:<br /> ntfs_list_ea fs/ntfs3/xattr.c:191 [inline]<br /> ntfs_listxattr+0x401/0x570 fs/ntfs3/xattr.c:710<br /> vfs_listxattr fs/xattr.c:457 [inline]<br /> listxattr+0x293/0x2d0 fs/xattr.c:804<br /> <br /> Fix the logic of ea_all iteration. When the ea-&gt;name_len is 0,<br /> return immediately, or Add2Ptr() would visit invalid memory<br /> in the next loop.<br /> <br /> [almaz.alexandrovich@paragon-software.com: lines of the patch have changed]