HarborGuard / CVE
Back to search
HIGHCVE-2026-43044Published Modified CNA Linux

CVE-2026-43044: crypto: caam - fix DMA corruption on long hmac keys

In the Linux kernel, the following vulnerability has been resolved: crypto: caam - fix DMA corruption on long hmac keys When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory. The rounding was performed, but never actually used for the allocation. Fix this by replacing kmemdup with kmalloc for a larger buffer, followed by memcpy.

Metrics

CVSS v3.1
7.8
Severity
HIGH
Fixed in
0
Affected Products
2

Fix available

05ddfdcbe10dc5f97afc4e46ca22be2be717e8caf6.6.1346.12.816.18.226.19.1268feed135a0c7243a9275ae7e6a18260f755f52b7.0a7ecf06d3ee06e9b3322e1e7b003ea5c6f6e135ac0c133e0225d87aad326bb90bbce9bdd6fde3cbbf2af8be110bde26b3e3354efdfdda97f426306a4
Affected packages
  • Linux / Linux
    < a7ecf06d3ee06e9b3322e1e7b003ea5c6f6e135a (from 199354d7fb6eaa2cc5bb650af0bca624baffee35) · < c0c133e0225d87aad326bb90bbce9bdd6fde3cbb (from 199354d7fb6eaa2cc5bb650af0bca624baffee35) · < 68feed135a0c7243a9275ae7e6a18260f755f52b (from 199354d7fb6eaa2cc5bb650af0bca624baffee35) · < f2af8be110bde26b3e3354efdfdda97f426306a4 (from 199354d7fb6eaa2cc5bb650af0bca624baffee35) · < 5ddfdcbe10dc5f97afc4e46ca22be2be717e8caf (from 199354d7fb6eaa2cc5bb650af0bca624baffee35)
  • Linux / Linux
    6.3
    Fixed in 0, 6.6.134, 6.12.81, 6.18.22, 6.19.12, 7.0
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References