CVE-2026-80640: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: cxl/fwctl: Fix __fortify_panic Fix a runtime assertion in cxlctl_get_supported_features(). Fortify complains that it is potentially overflowing the entries array per __counted_by_le(num_entries). Quiet the false positive by initializing @num_entries earlier. memcpy: detected buffer overflow: 48 byte write of buffer size 0 WARNING: lib/string_helpers.c:1036 at __fortify_report+0x4d/0xa0, CPU#7: fwctl/1398 RIP: 0010:__fortify_report+0x50/0xa0 Call Trace: __fortify_panic+0xd/0xf cxlctl_get_supported_features.cold+0x23/0x35 [cxl_core]

Засегнати продукти

• Linux Linux: 4d1c09cef2c244bd19467c016a3e56ba28ecc59d преди b8d15e85596ad8993d42e0703a9741961a2f03eb; 4d1c09cef2c244bd19467c016a3e56ba28ecc59d преди 18c67ecc5dafe14055edcea53f36f4e31df1816b; 4d1c09cef2c244bd19467c016a3e56ba28ecc59d преди 6c9d2e87df40d606f1c85143e9acb1ecff463d5e
• Linux Linux: 6.15; преди 6.15; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; 7.2 до *

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-2026-80640
• https://nvd.nist.gov/vuln/detail/CVE-2026-80640
• https://git.kernel.org/stable/c/b8d15e85596ad8993d42e0703a9741961a2f03eb
• https://git.kernel.org/stable/c/18c67ecc5dafe14055edcea53f36f4e31df1816b
• https://git.kernel.org/stable/c/6c9d2e87df40d606f1c85143e9acb1ecff463d5e