Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — dm integrity: fix memory corruption when tag_size is less than digest size
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H H H 7.8 .0028 20.4 —
AFFECTED
Product Versions Fixed
Linux a3fcf7253139609bf9ff901fbf955fba047e75dd – —
Linux 4.19 – 4.19.240
TIMELINE
Feb 26 Reserved by Linux
Feb 26 Published (CNA: Linux)
Aug 13 ENRICHED — CVE-2022-49044 (Linux). Received CVSS 7.8 and CPE data from NVD.
Description
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| February 26, 2025 | Reserved | Reserved by Linux |
| February 26, 2025 | Published | Published (CNA: Linux) |
| August 13, 2026 | ENRICHED | ENRICHED — CVE-2022-49044 (Linux). Received CVSS 7.8 and CPE data from NVD. |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Linux | Linux | — | a3fcf7253139609bf9ff901fbf955fba047e75dd | — |
| Linux | Linux | — | 4.19 | 4.19.240 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-49044 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.