From: Peter Zijlstra <peterz@infradead.org>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org, alyssa.milburn@intel.com,
scott.d.constable@intel.com, joao@overdrivepizza.com,
andrew.cooper3@citrix.com, jpoimboe@kernel.org,
jose.marchesi@oracle.com, hjl.tools@gmail.com,
ndesaulniers@google.com, samitolvanen@google.com,
nathan@kernel.org, ojeda@kernel.org, kees@kernel.org,
alexei.starovoitov@gmail.com, mhiramat@kernel.org, jmill@asu.edu
Subject: Re: [PATCH v3 06/10] x86/traps: Decode LOCK Jcc.d8 #UD
Date: Wed, 19 Feb 2025 17:45:05 +0100 [thread overview]
Message-ID: <20250219164505.GG34567@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <20250219163514.928125334@infradead.org>
On Wed, Feb 19, 2025 at 05:21:13PM +0100, Peter Zijlstra wrote:
> @@ -315,7 +334,8 @@ static noinstr bool handle_bug(struct pt
>
> switch (ud_type) {
> case BUG_EA:
> - if (handle_cfi_failure(regs) == BUG_TRAP_TYPE_WARN) {
> + case BUG_LOCK:
> + if (handle_cfi_failure(ud_type, regs) == BUG_TRAP_TYPE_WARN) {
> if (regs->ip == addr)
> regs->ip += ud_len;
> handled = true;
> @@ -324,7 +344,7 @@ static noinstr bool handle_bug(struct pt
>
> case BUG_UD2:
> if (report_bug(regs->ip, regs) == BUG_TRAP_TYPE_WARN ||
> - handle_cfi_failure(regs) == BUG_TRAP_TYPE_WARN) {
> + handle_cfi_failure(ud_type, regs) == BUG_TRAP_TYPE_WARN) {
> if (regs->ip == addr)
> regs->ip += ud_len;
> handled = true;
>
Damn, that ud_type change belongs to the next patch. Consider it fixed.
next prev parent reply other threads:[~2025-02-19 16:45 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-19 16:21 [PATCH v3 00/10] x86/ibt: FineIBT-BHI Peter Zijlstra
2025-02-19 16:21 ` [PATCH v3 01/10] x86/cfi: Add warn option Peter Zijlstra
2025-02-19 17:50 ` Kees Cook
2025-02-19 17:56 ` Peter Zijlstra
2025-02-19 16:21 ` [PATCH v3 02/10] x86/ibt: Add exact_endbr() helper Peter Zijlstra
2025-02-19 17:51 ` Kees Cook
2025-02-19 16:21 ` [PATCH v3 03/10] x86/traps: Decode 0xEA #UD Peter Zijlstra
2025-02-19 16:47 ` Andrew Cooper
2025-02-19 16:49 ` Peter Zijlstra
2025-02-19 17:52 ` Kees Cook
2025-02-19 16:21 ` [PATCH v3 04/10] x86/traps: Allow custom fixups in handle_bug() Peter Zijlstra
2025-02-19 17:55 ` Kees Cook
2025-02-19 18:17 ` Peter Zijlstra
2025-02-19 16:21 ` [PATCH v3 05/10] x86/ibt: Optimize FineIBT sequence Peter Zijlstra
2025-02-19 17:15 ` Andrew Cooper
2025-02-20 18:28 ` Constable, Scott D
2025-02-19 18:01 ` Kees Cook
2025-02-19 18:18 ` Peter Zijlstra
2025-02-19 18:23 ` Kees Cook
2025-02-19 16:21 ` [PATCH v3 06/10] x86/traps: Decode LOCK Jcc.d8 #UD Peter Zijlstra
2025-02-19 16:45 ` Peter Zijlstra [this message]
2025-02-19 18:20 ` Kees Cook
2025-02-19 18:33 ` Peter Zijlstra
2025-02-19 19:44 ` Peter Zijlstra
2025-02-19 16:21 ` [PATCH v3 07/10] x86/ibt: Add paranoid FineIBT mode Peter Zijlstra
2025-02-19 17:31 ` Andrew Cooper
2025-02-19 20:07 ` Peter Zijlstra
2025-02-21 13:40 ` David Laight
2025-02-19 18:05 ` Kees Cook
2025-02-19 16:21 ` [PATCH v3 08/10] x86: BHI stubs Peter Zijlstra
2025-02-19 18:07 ` Kees Cook
2025-02-19 18:07 ` Peter Zijlstra
2025-02-19 16:21 ` [PATCH v3 09/10] x86/ibt: Implement FineIBT-BHI mitigation Peter Zijlstra
2025-02-19 18:11 ` Kees Cook
2025-02-19 16:21 ` [PATCH v3 10/10] x86/ibt: Optimize fineibt-bhi arity 1 case Peter Zijlstra
2025-02-19 18:21 ` Kees Cook
2025-02-19 17:36 ` [PATCH v3 00/10] x86/ibt: FineIBT-BHI Kees Cook
2025-02-20 11:27 ` Peter Zijlstra
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