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Vulnerabilities CVE-2026-49424

CVE-2026-49424

None
Open
TLP:CLEAR

Kernel stack disclosure in Linux compatibility layer

NVD CVE.org

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Description

The Linux waitid() implementation translates a FreeBSD siginfo_t struct into a stack-declared Linux siginfo_t. It did not first zero the stack struct. An unprivileged user may observe 104 bytes of uninitialized kernel stack data, which may contain sensitive information.

Details

Confidence
90%
Published
Aug 19, 2026
Last Modified
Aug 19, 2026
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