linux-kernel - [PATCH v7 02/31] objtool: Flesh out warning related to pv

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251114150133.1056710-3-vschneid@redhat.com>
Date: Fri, 14 Nov 2025 16:01:04 +0100
From: Valentin Schneider <vschneid@...hat.com>
To: linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	rcu@...r.kernel.org,
	x86@...nel.org,
	linux-arm-kernel@...ts.infradead.org,
	loongarch@...ts.linux.dev,
	linux-riscv@...ts.infradead.org,
	linux-arch@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org
Cc: Josh Poimboeuf <jpoimboe@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andy Lutomirski <luto@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Arnd Bergmann <arnd@...db.de>,
	Frederic Weisbecker <frederic@...nel.org>,
	"Paul E. McKenney" <paulmck@...nel.org>,
	Jason Baron <jbaron@...mai.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ard Biesheuvel <ardb@...nel.org>,
	Sami Tolvanen <samitolvanen@...gle.com>,
	"David S. Miller" <davem@...emloft.net>,
	Neeraj Upadhyay <neeraj.upadhyay@...nel.org>,
	Joel Fernandes <joelagnelf@...dia.com>,
	Josh Triplett <josh@...htriplett.org>,
	Boqun Feng <boqun.feng@...il.com>,
	Uladzislau Rezki <urezki@...il.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Mel Gorman <mgorman@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Masahiro Yamada <masahiroy@...nel.org>,
	Han Shen <shenhan@...gle.com>,
	Rik van Riel <riel@...riel.com>,
	Jann Horn <jannh@...gle.com>,
	Dan Carpenter <dan.carpenter@...aro.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Juri Lelli <juri.lelli@...hat.com>,
	Clark Williams <williams@...hat.com>,
	Yair Podemsky <ypodemsk@...hat.com>,
	Marcelo Tosatti <mtosatti@...hat.com>,
	Daniel Wagner <dwagner@...e.de>,
	Petr Tesarik <ptesarik@...e.com>,
	Shrikanth Hegde <sshegde@...ux.ibm.com>
Subject: [PATCH v7 02/31] objtool: Flesh out warning related to pv_ops[] calls

I had to look into objtool itself to understand what this warning was
about; make it more explicit.

Signed-off-by: Valentin Schneider <vschneid@...hat.com>
Acked-by: Josh Poimboeuf <jpoimboe@...nel.org>
---
 tools/objtool/check.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 12b6967e5fd0d..1efa9f1bf16ba 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -3363,7 +3363,7 @@ static bool pv_call_dest(struct objtool_file *file, struct instruction *insn)
 
 	list_for_each_entry(target, &file->pv_ops[idx].targets, pv_target) {
 		if (!target->sec->noinstr) {
-			WARN("pv_ops[%d]: %s", idx, target->name);
+			WARN("pv_ops[%d]: indirect call to %s() leaves .noinstr.text section", idx, target->name);
 			file->pv_ops[idx].clean = false;
 		}
 	}
-- 
2.51.0