CVE-2025-39787
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-11

Last updated on: 2025-11-03

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: soc: qcom: mdt_loader: Ensure we don't read past the ELF header When the MDT loader is used in remoteproc, the ELF header is sanitized beforehand, but that's not necessary the case for other clients. Validate the size of the firmware buffer to ensure that we don't read past the end as we iterate over the header. e_phentsize and e_shentsize are validated as well, to ensure that the assumptions about step size in the traversal are valid.
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Meta Information
Published
2025-09-11
Last Modified
2025-11-03
Generated
2026-06-16
AI Q&A
2025-09-11
EPSS Evaluated
2026-06-15
NVD
CVE-2025-39787
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
linux kernel 5.10.244-1
qcom mdt_loader *
linux kernel 6.1.153-1
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability in the Linux kernel involves the MDT loader component used in the Qualcomm SoC subsystem. The issue is that when the MDT loader processes ELF firmware headers, it may read beyond the end of the ELF header if the firmware buffer size and header entry sizes are not properly validated. This can lead to out-of-bounds reads because the ELF header is sanitized only when used in remoteproc, but not necessarily for other clients. The fix ensures validation of the firmware buffer size and ELF header entry sizes to prevent reading past the end of the header.

Impact Analysis

This vulnerability can lead to out-of-bounds memory reads when processing firmware ELF headers, which may cause system instability, crashes, or potentially expose sensitive information from memory. It could also be exploited by an attacker to cause denial of service or to gain unauthorized access to memory contents.

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