CVE-2026-64357: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: xfs: fix exchmaps reservation limit check xfs_exchmaps_estimate_overhead() adds the bmbt and rmapbt overhead to a local resblks variable, but the final UINT_MAX check still tests req->resblks. That is the reservation value from before the overhead was added. The computed value is stored back in req->resblks and later passed to xfs_trans_alloc(), whose block reservation argument is unsigned int. Check the computed reservation so the existing limit applies to the value that will be used.

Засегнати продукти

• Linux Linux: 966ceafc7a437105ecfe1cadb3747b2965a260ca преди c597c8580d50127fc1221b5a5b653a94d49e23e3; 966ceafc7a437105ecfe1cadb3747b2965a260ca преди a62ef2d13d6e7270dd5e88c6082bf2d0edcd5112; 966ceafc7a437105ecfe1cadb3747b2965a260ca преди 4707344b0d36d1012c8a1716e20167cd3afdd5f1; 966ceafc7a437105ecfe1cadb3747b2965a260ca преди 0a5213bbff62b51c7d4999ac8c7e11ea57d00d45
• Linux Linux: 6.10; преди 6.10; 6.12.96 до 6.12.*; 6.18.39 до 6.18.*; 7.1.4 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-64357
• https://nvd.nist.gov/vuln/detail/CVE-2026-64357
• https://git.kernel.org/stable/c/c597c8580d50127fc1221b5a5b653a94d49e23e3
• https://git.kernel.org/stable/c/a62ef2d13d6e7270dd5e88c6082bf2d0edcd5112
• https://git.kernel.org/stable/c/4707344b0d36d1012c8a1716e20167cd3afdd5f1
• https://git.kernel.org/stable/c/0a5213bbff62b51c7d4999ac8c7e11ea57d00d45