CVE-2026-46100: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: fs: afs: revert mmap_prepare() change Partially reverts commit 9d5403b1036c ("fs: convert most other generic_file_*mmap() users to .mmap_prepare()"). This is because the .mmap invocation establishes a refcount, but .mmap_prepare is called at a point where a merge or an allocation failure might happen after the call, which would leak the refcount increment. Functionality is being added to permit the use of .mmap_prepare in this case, but in the interim, we need to fix this.

Засегнати продукти

• Linux Linux: 9d5403b1036cdcd4be0f9f5568612c0e60e73d79 преди f51f85c044809fbd39ac8ae07ac99bc43ce32bd5; 9d5403b1036cdcd4be0f9f5568612c0e60e73d79 преди 48c7a0eaeea41da17d1d84d2d7a4c40be122b246; 9d5403b1036cdcd4be0f9f5568612c0e60e73d79 преди fbfc6578eaca12daa0c09df1e9ba7f2c657b49da
• Linux Linux: 6.17; преди 6.17; 6.18.27 до 6.18.*; 7.0.4 до 7.0.*; от 7.1 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-46100
• https://nvd.nist.gov/vuln/detail/CVE-2026-46100
• https://git.kernel.org/stable/c/f51f85c044809fbd39ac8ae07ac99bc43ce32bd5
• https://git.kernel.org/stable/c/48c7a0eaeea41da17d1d84d2d7a4c40be122b246
• https://git.kernel.org/stable/c/fbfc6578eaca12daa0c09df1e9ba7f2c657b49da