References to Advisories, Solutions, and Tools

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Change History

In the Linux kernel, the following vulnerability has been resolved:

fs/ntfs3: Fix an NULL dereference bug

The issue here is when this is called from ntfs_load_attr_list().  The
"size" comes from le32_to_cpu(attr->res.data_size) so it can't overflow
on a 64bit systems but on 32bit systems the "+ 1023" can overflow and
the result is zero.  This means that the kmalloc will succeed by
returning the ZERO_SIZE_PTR and then the memcpy() will crash with an
Oops on the next line.

kernel.org https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2 [No types assigned]

kernel.org https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b [No types assigned]

kernel.org https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6c [No types assigned]

kernel.org https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6 [No types assigned]

kernel.org https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7 [No types assigned]