CVE-2025-21826 (GCVE-0-2025-21826)
Vulnerability from cvelistv5
Published
2025-03-06 16:04
Modified
2025-11-03 20:59
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject mismatching sum of field_len with set key length The field length description provides the length of each separated key field in the concatenation, each field gets rounded up to 32-bits to calculate the pipapo rule width from pipapo_init(). The set key length provides the total size of the key aligned to 32-bits. Register-based arithmetics still allows for combining mismatching set key length and field length description, eg. set key length 10 and field description [ 5, 4 ] leading to pipapo width of 12.
References
Impacted products
Vendor Product Version
Linux Linux Version: 2d4c0798a1ef8db15b3277697ac2def4eda42312
Version: 77be8c495a3f841e88b46508cc20d3d7d3289da3
Version: 9cb084df01e198119de477ac691d682fb01e80f3
Version: dc45bb00e66a33de1abb29e3d587880e1d4d9a7e
Version: 3ce67e3793f48c1b9635beb9bb71116ca1e51b58
Version: 3ce67e3793f48c1b9635beb9bb71116ca1e51b58
Version: 3ce67e3793f48c1b9635beb9bb71116ca1e51b58
Version: ff67e3e488090908dc015ba04d7407d8bd467f7e
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