CVE-2026-64104: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Explicitly leak pages in unknown state When set_memory_{encrypted,decrypted}() fail, the user cannot know at which point the function failed, meaning that the pages are left in an unknown state from the point of view of the caller. Since the pages may be left in an unencrypted state, they are not suitable for general use, and cannot be returned safely to the buddy allocator. Avoid the issue by never freeing the pages, and then do the proper accounting by calling snp_leak_pages().

Засегнати продукти

• Linux Linux: 3e385c0d6ce88ac9916dcf84267bd5855d830748 преди bee400ad4f4259c9c0758e4f1960a1eed6f6f9f0; 3e385c0d6ce88ac9916dcf84267bd5855d830748 преди 3d0cd0065deeb054b4b29236432e851806b7cc81; 3e385c0d6ce88ac9916dcf84267bd5855d830748 преди fd948c3f96b18ff9ba7d3e8eae13d196593e1aaf; 0b16521f95c875e79d657cb8d6911c15080dbb80; 6.13.8 преди 6.14
• Linux Linux: 6.14; преди 6.14; 6.18.34 до 6.18.*; 7.0.11 до 7.0.*; от 7.1 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-2026-64104
• https://nvd.nist.gov/vuln/detail/CVE-2026-64104
• https://git.kernel.org/stable/c/bee400ad4f4259c9c0758e4f1960a1eed6f6f9f0
• https://git.kernel.org/stable/c/3d0cd0065deeb054b4b29236432e851806b7cc81
• https://git.kernel.org/stable/c/fd948c3f96b18ff9ba7d3e8eae13d196593e1aaf