CVE-2026-49424
Kernel stack disclosure in Linux compatibility layer
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-908 |
| Vendor | freebsd |
| Product | freebsd |
| Published | Aug 19, 2026 |
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Affected Versions
FreeBSD / FreeBSD
15.0-RELEASE < p11 14.4-RELEASE < p7 14.3-RELEASE < p16
References
Credits
Adam Crosser, Praetorian