CVE-2026-72018: Linux, грешка в паметта

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: dibs: loopback: validate offset and size in move_data() The loopback move_data() performs a memcpy into the registered DMB without checking whether offset + size exceeds the DMB length. Unlike real ISM hardware, which enforces memory region bounds natively, the software loopback has no such protection. A peer-supplied out-of-bounds offset or oversized write would result in an OOB write past the allocated kernel buffer. Add an explicit bounds check before the memcpy to reject such requests with -EINVAL.

Засегнати продукти

• Linux Linux: f7a22071dbf316c982fb44308874bd7ad9ac2091 преди ee188a6b264b71315a67f1b9470faad308b730d2; f7a22071dbf316c982fb44308874bd7ad9ac2091 преди b2f426a9a22886071966432ede8fceafffe12b8c; f7a22071dbf316c982fb44308874bd7ad9ac2091 преди 94fe0ab01b480b52bd8f977edbd845ef375d69fd; f7a22071dbf316c982fb44308874bd7ad9ac2091 преди 78237e3c0720fcc6eb9b87e90fd70f63eeca886f
• Linux Linux: 6.10; преди 6.10; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; 7.2 до *

Вид слабост

• CWE-787 Out-of-bounds Write

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-2026-72018
• https://nvd.nist.gov/vuln/detail/CVE-2026-72018
• https://git.kernel.org/stable/c/ee188a6b264b71315a67f1b9470faad308b730d2
• https://git.kernel.org/stable/c/b2f426a9a22886071966432ede8fceafffe12b8c
• https://git.kernel.org/stable/c/94fe0ab01b480b52bd8f977edbd845ef375d69fd
• https://git.kernel.org/stable/c/78237e3c0720fcc6eb9b87e90fd70f63eeca886f