CVE-2026-90306: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: ARM: 9481/2: breakpoint: CFI breakpoints only on demand This removes the stub hw_breakpoint_cfi_handler() from ARM, making it not steal breakpoint type 0x03 (ARM_ENTRY_CFI_BREAKPOINT) unless CFI is actively used in the kernel. When not instrumenting with CFI, or when a breakpoint is issued in userspace, we fall through to return 1 from hw_breakpoint_pending() "unhandled fault" so userspace can make use of this breakpoint. Tested with LKDTM and this command line: echo CFI_FORWARD_PROTO > /sys/kernel/debug/provoke-crash/DIRECT still works as expected.

Засегнати продукти

• Linux Linux: c3f89986fde7bb9ccc86a901bf28e1f7d69fc3b3 преди 314f1a6762b5d51b37784ed7dc701d4c3d893703; c3f89986fde7bb9ccc86a901bf28e1f7d69fc3b3 преди da64b150e4b7bee615b33ab21f3137c31ec36922; c3f89986fde7bb9ccc86a901bf28e1f7d69fc3b3 преди 8ed9bff906cf8036531d1559f10e82733a52b41f
• Linux Linux: 6.10; преди 6.10; 6.18.52 до 6.18.*; 7.2.6 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-2026-90306
• https://nvd.nist.gov/vuln/detail/CVE-2026-90306
• https://git.kernel.org/stable/c/314f1a6762b5d51b37784ed7dc701d4c3d893703
• https://git.kernel.org/stable/c/da64b150e4b7bee615b33ab21f3137c31ec36922
• https://git.kernel.org/stable/c/8ed9bff906cf8036531d1559f10e82733a52b41f