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GNU C Library 2.39 and later contains a defect in the Power10-optimized strcmp implementation for powerpc64le. The implementation writes to vector registers v20 through v31 without preserving their caller-provided values. Under the powerpc64le ABI, these are non-volatile registers and must be restored by the callee. The ABI violation can corrupt state retained by the calling function, potentially changing its control flow or exposing strings supplied to strcmp to other portions of the process.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability addressed through the OADP must-gather backport; no further technical details are provided.
Unknown
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.