PT-2024-32116 · Linux+9 · Linux Kernel+9
Bjorn Andersson
+6
·
Published
2024-07-28
·
Updated
2025-11-12
·
CVE-2024-46689
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to the mapping of shared memory in the Linux kernel, specifically in the soc: qcom: cmd-db component. The problem arises when the XPU falsely detects clean cache eviction as a "write" into the write-protected region, leading to a secure interrupt and an endless loop in the Trust Zone. This occurs because the Qualcomm Hypervisor maps the region as Non-Cacheable memory in Stage 2 translation tables, but other hypervisors like Xen or KVM do not know about these specific mappings. The patch fixes the issue by updating the mapping of cmd-db memory from MEMREMAP WB to MEMREMAP WT/WC, removing the dependency on correct mappings in Stage 2 tables.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Infinite Loop
Memory Corruption
Found an issue in the description? Have something to add? Feel free to write us 👾
Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Linuxmint
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu