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Wed, 4 Nov 2026 17:50:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793814635; bh=p9+kMzHwjVYuWJQ2+obB/IGMwn7xV7y09JcSQ7GHv6w=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=nuEE//0pTMjiN4EAckF29THCaCp8OShYg92gOVf7lMyKvCn0dVCXPo4XEmIgwbvrF mgNMx/eNkGPYY7G6H0/+5Z2vYWnryKoGvrqXmpNUIJXHh7VRJoCJ9vZOSJMA/OjJoT 8z6LvY6TdWjfMQKBqFRTF1g7G5I/em9dQz+ebu6Y4iFujPyG6kD5aM4cOhxD5zLdkS 0mLt2so9jaXkBdOELDLBFZJsYTghdzOgcrQCBh4fJ1VVmpw1xBKRg75vKt5bYd5IUj +CjnJztBrPQd0ybc2en6qZmMR8GIuV6NMVYOONgqhfspT52PI5BFxqfGvNedHL80U/ rS6/W8sLjdi2Q== From: Christian Brauner To: linux-fsdevel@vger.kernel.org Cc: Linus Torvalds , Jann Horn , Josef Bacik , Chris Mason , Jeff Layton , NeilBrown , Eric Dumazet , Thomas Gleixner , Al Viro , Jonathan Corbet , Christoph Hellwig , Greg Kroah-Hartman , Joel Granados , Kees Cook , Jan Kara , Jan Kara , linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linux-um@lists.infradead.org, linux-wireless@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, netdev@vger.kernel.org, ntfs3@lists.linux.dev, platform-driver-x86@vger.kernel.org, coreteam@netfilter.org, kexec@lists.infradead.org, linux-pci@vger.kernel.org, linux-sound@vger.kernel.org, netfilter-devel@vger.kernel.org, dri-devel@lists.freedesktop.org, ibm-acpi-devel@lists.sourceforge.net, jfs-discussion@lists.sourceforge.net, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-cifs@vger.kernel.org, linux-fbdev@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-mm@kvack.org, linux-sh@vger.kernel.org, linux-usb@vger.kernel.org, samba-technical@lists.samba.org, sparclinux@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-doc@vger.kernel.org, linux-serial@vger.kernel.org, linux-atm-general@lists.sourceforge.net, Takashi Iwai , linux-input@vger.kernel.org, linux-raid@vger.kernel.org, linux-ext4@vger.kernel.org, linux-modules@vger.kernel.org, linux-debuggers@vger.kernel.org, "Christian Brauner (Amutable)" , Chuck Lever , stable@vger.kernel.org Subject: [PATCH v2 21/51] powerpc/rtasd: zero the error log buffer Date: Wed, 4 Nov 2026 18:47:07 +0100 Message-ID: <20261104-work-procfs-bugfixes-v2-21-bbf7d5546809@kernel.org> In-Reply-To: <20261104-work-procfs-bugfixes-v2-0-bbf7d5546809@kernel.org> References: <20261104-work-procfs-bugfixes-v2-0-bbf7d5546809@kernel.org> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Mailer: b4 0.17-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=1050; i=brauner@kernel.org; h=from:subject:message-id; bh=mkSbMC6ZDV5f4P2v+qDezcMlza9tkw/MXVPMWZSeje8=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWS9zrvxY+J+keMVs7edupnp1Ff4+Ah738HHuRv3nhU1l bJwbb3Q0VHKwiDGxSArpsji0G4SLrecp2KzUaYGzBxWJpAhDFycAjARpRsM/8P+v+y8bZx29NuN hw/PunmnX07Un1++7juvb051byL7qQCG/6n83y77TZpU+sZ0i3q+d/jTxn/VP3mKFCceKbEpuaT 1nAEA X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Content-Transfer-Encoding: 8bit X-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-um" X-Spam-Status: No, score=-18.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 rtas_log_read() hands out a whole slot of the error log but pSeries_log_error() only fills in the sequence number and the event, which is usually a lot shorter. The rest of the slot is whatever vmalloc() left there. Use vzalloc(). Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable@vger.kernel.org Signed-off-by: Christian Brauner (Amutable) --- arch/powerpc/kernel/rtasd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/rtasd.c b/arch/powerpc/kernel/rtasd.c index fd40864bdb70..dd0df5e164a3 100644 --- a/arch/powerpc/kernel/rtasd.c +++ b/arch/powerpc/kernel/rtasd.c @@ -523,7 +523,7 @@ static int __init rtas_event_scan_init(void) rtas_error_log_max = rtas_get_error_log_max(); rtas_error_log_buffer_max = rtas_error_log_max + sizeof(int); - rtas_log_buf = vmalloc(array_size(LOG_NUMBER, + rtas_log_buf = vzalloc(array_size(LOG_NUMBER, rtas_error_log_buffer_max)); if (!rtas_log_buf) { printk(KERN_ERR "rtasd: no memory\n"); -- 2.53.0