From nobody Fri Dec 19 09:51:30 2025 Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 733431D12D for ; Mon, 18 Dec 2023 13:54:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alien8.de Authentication-Results: smtp.subspace.kernel.org; dkim=fail reason="signature verification failed" (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b="a4m2NNEy" Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id DC28040E00CB; Mon, 18 Dec 2023 13:53:55 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=fail (4096-bit key) reason="fail (body has been altered)" header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id ZekdwaTttCYx; Mon, 18 Dec 2023 13:53:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1702907631; bh=2BdIepiFCyNWY1HXGUCFba+Y4aYC3Syv6mhSQjmq5T0=; h=From:To:Cc:Subject:Date:From; b=a4m2NNEy+iPkWxAiEyPLPh4I2ilyQOg7+UDKH7dUhlY4uw0LB/samG8TxIDFj5SmT 5YBgIfQmLWM8kMHKVftEi4VHVn6Q6H4k/dxbOvPt+g3V1FjgZrTTfEDjxxEYADYL1I KzkSSCmgY4I5nOc8rltDB1GeeNVXSMk58TBIzTRWMtJwwTGFIa8VPkYOvKyyEN4NZn bVaaxTI9ewjoC2K4km8M61I9Al2K8s0+nSXDN6lEU+lKgK32BSSV+wbVwWpkHszWKY G6m9kx8fzt9oQ3m7uKst/GXgP72yBjiHL4KrjtaIITsj+bEwieNHUWDMy9KHqUcK4L +b+246iO8cFzp1/xn2z9H2b1j4OI/OrzzW88CBdazoPWrTTl57EQQWGo637YxFJJKw WY4i238A3osvGN3wEp5FgafoDvSNiqGGFIzkEwJ7YCWLw+1fx7CocEvisJY6d2zVZ5 B54kOZ2bPwQhqFrugeImxrwrNj8ogjClGuuaLAI0XgvnN6ReGLCT9z6gq1rxICUqgE foPLR/3h0KxTuRqN7mQ0vp71h4aRcOnqV/YBmKjbTh/LcWkA9er68/EDrFrRq45C03 +PIidkH7GU+OBbEaCaN3XhiiaPjnHxEiZaLy1EpvQBLwlt+spu3DHiB9P3h8Rq36L4 8nLm/ZBu7lmsldnH9W7TPpc8= Received: from zn.tnic (pd95304da.dip0.t-ipconnect.de [217.83.4.218]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 281D040E0030; Mon, 18 Dec 2023 13:53:48 +0000 (UTC) From: Borislav Petkov To: LKML Cc: Andrey Ryabinin , Andrew Morton Subject: [PATCH] UBSAN: Use the kernel panic message markers Date: Mon, 18 Dec 2023 14:53:39 +0100 Message-ID: <20231218135339.23209-1-bp@alien8.de> X-Mailer: git-send-email 2.42.0.rc0.25.ga82fb66fed25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: "Borislav Petkov (AMD)" Use the same splat markers as panic does for easier matching by external tools scanning kernel dmesg for splats. Signed-off-by: Borislav Petkov (AMD) Cc: Andrey Ryabinin Cc: Andrew Morton --- lib/ubsan.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/lib/ubsan.c b/lib/ubsan.c index 3f90810f9f42..df4f8d1354bb 100644 --- a/lib/ubsan.c +++ b/lib/ubsan.c @@ -204,8 +204,8 @@ static void ubsan_prologue(struct source_location *loc,= const char *reason) { current->in_ubsan++; =20 - pr_err("=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D" - "=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D\n"); + pr_warn(CUT_HERE); + pr_err("UBSAN: %s in %s:%d:%d\n", reason, loc->file_name, loc->line & LINE_MASK, loc->column & COLUMN_MASK); =20 @@ -215,8 +215,7 @@ static void ubsan_prologue(struct source_location *loc,= const char *reason) static void ubsan_epilogue(void) { dump_stack(); - pr_err("=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D" - "=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D\n"); + pr_warn("---[ end trace ]---\n"); =20 current->in_ubsan--; =20 --=20 2.42.0.rc0.25.ga82fb66fed25