CVE-2026-98117: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: cachefiles: Fix potential UAF/KASAN warning Currently, trace_cachefiles_coherency() is being passed a pointer to a __be64 lain over the coherency data in struct cachefiles_xattr so that it can display the first 8 bytes. However, the data is of variable length and could even be 0 bytes. This could lead to a UAF or KASAN warning. Fix this by making sure the buffer has room for at least 8 bytes and that those 8 bytes are pre-cleared. Further, those bytes are not 8-byte aligned, so fix the tracepoint to extract the data as four 2-byte words (they are 2-byte aligned) and reassemble the __be64. The compiler will convert this into a single 8-byte load where the CPU supports it.

Засегнати продукти

• Linux Linux: 229105e5cfd9832a9ef1368c96e0098ec3a5fbf0 преди 68d459e6e609c31f96a203dd6eec60c634f155e1; 229105e5cfd9832a9ef1368c96e0098ec3a5fbf0 преди 93488ea378b4427598cace558236c110515d743b; 229105e5cfd9832a9ef1368c96e0098ec3a5fbf0 преди a67632c8c2688d6e0091529bcefe54bc5ee80e9b
• Linux Linux: 6.14; преди 6.14; 6.18.53 до 6.18.*; 7.2.7 до 7.2.*; от 7.3 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-2026-98117
• https://nvd.nist.gov/vuln/detail/CVE-2026-98117
• https://git.kernel.org/stable/c/68d459e6e609c31f96a203dd6eec60c634f155e1
• https://git.kernel.org/stable/c/93488ea378b4427598cace558236c110515d743b
• https://git.kernel.org/stable/c/a67632c8c2688d6e0091529bcefe54bc5ee80e9b