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From: <tartanllama@gmail.com>
To: <linux-kernel@vger.kernel.org>
Subject: ptrace: Why does PTRACE_PEEKUSER not allow reading of FPU registers on x86?
Date: Wed, 21 Feb 2024 12:39:23 -0000	[thread overview]
Message-ID: <01a401da64c3$0027ce60$00776b20$@gmail.com> (raw)

Hey folks,

Looking at arch/x86/kernel/ptrace.c, I can see that reading with
PTRACE_PEEKUSER is only supported within the user::regs and user::u_debugreg
fields. What's the reason that reading from user::i387 is disallowed?

Thanks,
Sy Brand


                 reply	other threads:[~2024-02-21 12:39 UTC|newest]

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