From: Peter Zijlstra <peterz@infradead.org>
To: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: x86@kernel.org, kys@microsoft.com, haiyangz@microsoft.com,
wei.liu@kernel.org, decui@microsoft.com, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com,
hpa@zytor.com, seanjc@google.com, pbonzini@redhat.com,
ardb@kernel.org, kees@kernel.org, Arnd Bergmann <arnd@arndb.de>,
gregkh@linuxfoundation.org, jpoimboe@kernel.org,
linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, linux-efi@vger.kernel.org,
samitolvanen@google.com, ojeda@kernel.org
Subject: Re: [PATCH v3 16/16] objtool: Validate kCFI calls
Date: Tue, 15 Jul 2025 10:38:10 +0200 [thread overview]
Message-ID: <20250715083810.GN1613200@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <CANiq72kP7_24ChdQ+vDg+HWJB-4mKWvB9P33C9O=0W_kLt0+eA@mail.gmail.com>
On Mon, Jul 14, 2025 at 06:30:09PM +0200, Miguel Ojeda wrote:
> On Mon, Jul 14, 2025 at 12:45 PM Peter Zijlstra <peterz@infradead.org> wrote:
> >
> > Apparently some Rust 'core' code violates this and explodes when ran
> > with FineIBT.
>
> I think this was fixed in Rust 1.88 (latest version), right? Or is
> there an issue still?
>
> 5595c31c3709 ("x86/Kconfig: make CFI_AUTO_DEFAULT depend on !RUST
> or Rust >= 1.88")
Oh yeah, it got fixed. Clearly I failed to update the Changelog.
> > - runtime EFI is especially henous because it also needs to disable
> > IBT. Basically calling unknown code without CFI protection at
> > runtime is a massice security issue.
>
> heinous
> massive
Typing hard; Thanks!
next prev parent reply other threads:[~2025-07-15 8:38 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-14 10:20 [PATCH v3 00/16] objtool: Detect and warn about indirect calls in __nocfi functions Peter Zijlstra
2025-07-14 10:20 ` [PATCH v3 01/16] x86/kvm/emulate: Implement test_cc() in C Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] KVM: x86: " tip-bot2 for Peter Zijlstra
2025-07-14 10:20 ` [PATCH v3 02/16] x86/kvm/emulate: Introduce EM_ASM_1 Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] KVM: x86: " tip-bot2 for Peter Zijlstra
2025-07-14 10:20 ` [PATCH v3 03/16] x86/kvm/emulate: Introduce EM_ASM_2 Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] KVM: x86: " tip-bot2 for Peter Zijlstra
2025-07-14 10:20 ` [PATCH v3 04/16] x86/kvm/emulate: Introduce EM_ASM_2R Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] KVM: x86: " tip-bot2 for Peter Zijlstra
2025-07-14 10:20 ` [PATCH v3 05/16] x86/kvm/emulate: Introduce EM_ASM_2W Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] KVM: x86: " tip-bot2 for Peter Zijlstra
2025-07-14 10:20 ` [PATCH v3 06/16] x86/kvm/emulate: Introduce EM_ASM_2CL Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] KVM: x86: " tip-bot2 for Peter Zijlstra
2025-07-14 10:20 ` [PATCH v3 07/16] x86/kvm/emulate: Introduce EM_ASM_1SRC2 Peter Zijlstra
2025-07-24 0:16 ` Sean Christopherson
2025-08-18 10:37 ` Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] KVM: x86: " tip-bot2 for Peter Zijlstra
2025-07-14 10:20 ` [PATCH v3 08/16] x86/kvm/emulate: Introduce EM_ASM_3WCL Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] KVM: x86: " tip-bot2 for Peter Zijlstra
2025-07-14 10:20 ` [PATCH v3 09/16] x86/kvm/emulate: Convert em_salc() to C Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] KVM: x86: " tip-bot2 for Peter Zijlstra
2025-07-14 10:20 ` [PATCH v3 10/16] x86/kvm/emulate: Remove fastops Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] KVM: x86: " tip-bot2 for Peter Zijlstra
2025-07-14 10:20 ` [PATCH v3 11/16] x86,hyperv: Clean up hv_do_hypercall() Peter Zijlstra
2025-07-15 4:54 ` Wei Liu
2025-07-15 14:51 ` Michael Kelley
2025-08-20 9:39 ` [tip: x86/core] x86/hyperv: " tip-bot2 for Peter Zijlstra
2025-07-14 10:20 ` [PATCH v3 12/16] x86_64,hyperv: Use direct call to hypercall-page Peter Zijlstra
2025-07-15 4:58 ` Wei Liu
2025-07-15 14:52 ` Michael Kelley
2025-08-18 10:46 ` Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] x86/hyperv: " tip-bot2 for Peter Zijlstra
2025-07-14 10:20 ` [PATCH v3 13/16] x86/fred: Install system vector handlers even if FRED isnt fully enabled Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] x86/fred: Install system vector handlers even if FRED isn't " tip-bot2 for Sean Christopherson
2025-07-14 10:20 ` [PATCH v3 14/16] x86/fred: Play nice with invoking asm_fred_entry_from_kvm() on non-FRED hardware Peter Zijlstra
2025-07-26 4:54 ` Xin Li
2025-08-18 12:09 ` Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] " tip-bot2 for Josh Poimboeuf
2025-07-14 10:20 ` [PATCH v3 15/16] x86/fred: KVM: VMX: Always use FRED for IRQs when CONFIG_X86_FRED=y Peter Zijlstra
2025-08-20 9:39 ` [tip: x86/core] " tip-bot2 for Sean Christopherson
2025-07-14 10:20 ` [PATCH v3 16/16] objtool: Validate kCFI calls Peter Zijlstra
2025-07-14 10:49 ` Peter Zijlstra
2025-07-14 11:21 ` Peter Zijlstra
2025-07-14 16:30 ` Miguel Ojeda
2025-07-15 8:38 ` Peter Zijlstra [this message]
2025-07-16 21:03 ` Josh Poimboeuf
2025-07-24 20:37 ` Sean Christopherson
2025-07-25 17:57 ` Xin Li
2025-07-25 19:56 ` Sean Christopherson
2025-07-26 0:33 ` Xin Li
2025-08-20 9:39 ` [tip: x86/core] " tip-bot2 for Peter Zijlstra
2025-07-24 20:31 ` [PATCH v3 00/16] objtool: Detect and warn about indirect calls in __nocfi functions Sean Christopherson
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