CVE-2017-17053: Linux Kernel

High severity, CVSS 7.0. EPSS: 0.4% chance of exploitation in the next 30 days.

The init_new_context function in arch/x86/include/asm/mmu_context.h in the Linux kernel before 4.12.10 does not correctly handle errors from LDT table allocation when forking a new process, allowing a local attacker to achieve a use-after-free or possibly have unspecified other impact by running a specially crafted program. This vulnerability only affected kernels built with CONFIG_MODIFY_LDT_SYSCALL=y.

Affected products

• Linux Linux Kernel: from 4.4.144, before 4.4.153 (fixed in 4.4.153); from 4.6, before 4.9.46 (fixed in 4.9.46); from 4.10, before 4.12.10 (fixed in 4.12.10)

Published 2017-11-29. Last modified 2026-06-17.