CVE-2022-49044
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49044
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49044.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49044
- Downstream
- Related
- Published
- 2025-02-26T07:00:41Z
- Modified
- 2025-09-23T18:24:48Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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 "tagsize" parameter is less than the actual digest size. In this situation, a part of the digest beyond tagsize is ignored.
In this case, dm-integrity would write beyond the end of the ic->recalctags array and corrupt memory. The corruption happened in integrityrecalc->integritysectorchecksum->cryptoshashfinal.
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.
- References
-
- 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