CVE-2026-43330: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: crypto: caam - fix overflow on long hmac keys When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory. The copying is performed using kmemdup, however this leads to an overflow: reading more bytes (aligned_len - keylen) from the keylen source buffer. Fix this by replacing kmemdup with kmalloc, followed by memcpy.

Засегнати продукти

• Linux Linux: 199354d7fb6eaa2cc5bb650af0bca624baffee35 преди 31022cfde5235c45fa765f0aabeff5f0652852f2; 199354d7fb6eaa2cc5bb650af0bca624baffee35 преди c2fb4984fe09fc176fe4c12d5e3edf626df6511d; 199354d7fb6eaa2cc5bb650af0bca624baffee35 преди aa545df011338df13f0833fc1fabcb15c0521959; 199354d7fb6eaa2cc5bb650af0bca624baffee35 преди cebc5ebd958346195b77f42d0cd5141b4e448fae; 199354d7fb6eaa2cc5bb650af0bca624baffee35 преди 80688afb9c35b3934ce2d6be9973758915e2e0ef
• Linux Linux: 6.3; преди 6.3; 6.6.134 до 6.6.*; 6.12.81 до 6.12.*; 6.18.22 до 6.18.*; 6.19.12 до 6.19.*; от 7.0 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-2026-43330
• https://nvd.nist.gov/vuln/detail/CVE-2026-43330
• https://git.kernel.org/stable/c/31022cfde5235c45fa765f0aabeff5f0652852f2
• https://git.kernel.org/stable/c/c2fb4984fe09fc176fe4c12d5e3edf626df6511d
• https://git.kernel.org/stable/c/aa545df011338df13f0833fc1fabcb15c0521959
• https://git.kernel.org/stable/c/cebc5ebd958346195b77f42d0cd5141b4e448fae
• https://git.kernel.org/stable/c/80688afb9c35b3934ce2d6be9973758915e2e0ef