The x86/fpu (Floating Point Unit) subsystem in the Linux kernel before 4.13.5, when a processor supports the xsave feature but not the xsaves feature, does not correctly handle attempts to set reserved bits in the xstate header via the ptrace() or rt_sigreturn() system call, allowing local users to read the FPU registers of other processes on the system, related to arch/x86/kernel/fpu/regset.c and arch/x86/kernel/fpu/signal.c.
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History
No history.

Status: PUBLISHED
Assigner: mitre
Published: 2017-10-17T18:00:00
Updated: 2024-08-05T19:57:26.496Z
Reserved: 2017-10-17T00:00:00
Link: CVE-2017-15537

No data.

Status : Deferred
Published: 2017-10-17T18:29:00.197
Modified: 2025-04-20T01:37:25.860
Link: CVE-2017-15537
