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CVE-2025-38556 is a flaw in the Linux kernel HID core's s32ton() conversion routine. When converting a 32-bit quantity to a zero-bit quantity, s32ton() can perform an out-of-bounds shift. The condition can arise when processing a HID report containing a field whose size is zero. The fix hardens s32ton() to safely return a result for zero-bit conversions, consistent with snto32(), without rejecting the HID report or device.
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A Linux kernel HID core flaw involving hardening of s32ton() against conversions to zero bits. It affects Rocky Linux 10.0 kernel packages covered by CIQ advisory crlsa-2025_17776.
A Linux kernel HID core vulnerability addressed by the Rocky Linux 9 security update advisory CRLSA-2025_17760.
Linux kernel HID core integer conversion handling flaw.
A Linux kernel HID core flaw involving s32ton() conversion to zero bits.
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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.