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: <158142525822.411.5401976987070210798.tip-bot2@tip-bot2>
Date:   Tue, 11 Feb 2020 12:47:38 -0000
From:   "tip-bot2 for Josh Poimboeuf" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Borislav Petkov <bp@...e.de>, Josh Poimboeuf <jpoimboe@...hat.com>,
        Julien Thierry <jthierry@...hat.com>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: core/objtool] objtool: Fail the kernel build on fatal errors

The following commit has been merged into the core/objtool branch of tip:

Commit-ID:     644592d328370af4b3e027b7b1ae9f81613782d8
Gitweb:        https://git.kernel.org/tip/644592d328370af4b3e027b7b1ae9f81613782d8
Author:        Josh Poimboeuf <jpoimboe@...hat.com>
AuthorDate:    Mon, 10 Feb 2020 12:32:38 -06:00
Committer:     Borislav Petkov <bp@...e.de>
CommitterDate: Tue, 11 Feb 2020 13:27:03 +01:00

objtool: Fail the kernel build on fatal errors

When objtool encounters a fatal error, it usually means the binary is
corrupt or otherwise broken in some way.  Up until now, such errors were
just treated as warnings which didn't fail the kernel build.

However, objtool is now stable enough that if a fatal error is
discovered, it most likely means something is seriously wrong and it
should fail the kernel build.

Note that this doesn't apply to "normal" objtool warnings; only fatal
ones.

Suggested-by: Borislav Petkov <bp@...e.de>
Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com>
Signed-off-by: Borislav Petkov <bp@...e.de>
Reviewed-by: Julien Thierry <jthierry@...hat.com>
Link: https://lkml.kernel.org/r/f18c3743de0fef673d49dd35760f26bdef7f6fc3.1581359535.git.jpoimboe@redhat.com
---
 tools/objtool/check.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 4768d91..796f6a1 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -2491,8 +2491,14 @@ int check(const char *_objname, bool orc)
 out:
 	cleanup(&file);
 
-	/* ignore warnings for now until we get all the code cleaned up */
-	if (ret || warnings)
-		return 0;
+	if (ret < 0) {
+		/*
+		 *  Fatal error.  The binary is corrupt or otherwise broken in
+		 *  some way, or objtool itself is broken.  Fail the kernel
+		 *  build.
+		 */
+		return ret;
+	}
+
 	return 0;
 }

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ