Upstream information

CVE-2026-43044 at MITRE

Description

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.

SUSE information

Overall state of this security issue: Does not affect SUSE products

SUSE Bugzilla entries: 1264087 [NEW], 1264251 [NEW]

No SUSE Security Announcements cross referenced.

SUSE Timeline for this CVE

CVE page created: Tue May 5 15:30:28 2026
CVE page last modified: Fri May 8 12:08:59 2026