IT

Tracker / CVE-2025-37927

CVE-2025-37927

High 7.8

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix potential buffer overflow in parse_ivrs_acpihid There is a string parsing logic error which can lead to an overflow of hid or uid buffers. Comparing ACPIID_LEN against a total string length doesn't take into account the lengths of individual hid and uid buffers so the check is insufficient in some cases. For example if the length of hid string is 4 and the length of the uid string is 260, the length of str will be equal to ACPIID_LEN + 1 but uid string will overflow uid buffer which size is 256. The same applies to the hid string with length 13 and uid string with length 250. Check the length of hid and uid strings separately to prevent buffer overflow. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected products and versions

debian debian_linux
linux linux_kernel
linux linux_kernel · 4.7 → 5.4.294
linux linux_kernel · 5.11 → 5.15.182
linux linux_kernel · 5.16 → 6.1.138
linux linux_kernel · 5.5 → 5.10.238
linux linux_kernel · 6.13 → 6.14.6
linux linux_kernel · 6.2 → 6.6.90
linux linux_kernel · 6.7 → 6.12.28

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References