CVE-2022-49044

In the Linux kernel, the following vulnerability has been resolved: dm integrity: fix memory corruption when tag_size is less than digest size It is possible to set up dm-integrity in such a way that the "tag_size" parameter is less than the actual digest size. In this situation, a part of the digest beyond tag_size is ignored. In this case, dm-integrity would write beyond the end of the ic->recalc_tags array and corrupt memory. The corruption happened in integrity_recalc->integrity_sector_checksum->crypto_shash_final. Fix this corruption by increasing the tags array so that it has enough padding at the end to accomodate the loop in integrity_recalc() being able to write a full digest size for the last member of the tags array.

The following products are affected by CVE-2022-49044 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2022-49044.

URL	Resource
https://git.kernel.org/stable/c/08c1af8f1c13bbf210f1760132f4df24d0ed46d6
https://git.kernel.org/stable/c/4d485cf9b609709e45d5113e6e2b1b01254b2fe9
https://git.kernel.org/stable/c/6a95d91c0b315c965198f6ab7dec7c94129e17e0
https://git.kernel.org/stable/c/6b4bf97587ef6c1927a78934b700204920655123
https://git.kernel.org/stable/c/7f84c937222944c03f4615ca4742df6bed0e5adf
https://git.kernel.org/stable/c/cd02b2687d66f0a8e716384de4b9a0671331f1dc
https://lore.kernel.org/linux-cve-announce/2025022650-CVE-2022-49044-43d1@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-49044
https://www.cve.org/CVERecord?id=CVE-2022-49044