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b=nAIbEQM5310ipFRGOeRF8vkUDKmZoV5fUvGFSkGfohJKN0td49Uhh6p07z0TmFoqG z0/urFft9enaDILFt/KGwH99g1Xz8qTxz9V5KhpYKxR/eq8404ma/XNOuW0FOwDX/t 0PE6DmoJYSY8ZiM/40ale6fIy+EqB6fPMCmuJNMjn1QWIq1OGi616AHwx7G/kn/wGw BCW3AFqvAlRL5IrAp7rRm4LqA00F+fqgqJ2GtAb/ljVve7mQg8o9Ut8ljd73Bm2K9x r/t/01cUPSVVrBSMD5Iz4FAUC7uxwlFcUtQFHgxTNaeizL4CVMBd0e1DPRlOTx/w5l sgFqKBS14xdCA== From: Christian Brauner Date: Mon, 02 Nov 2026 15:21:23 +0100 Subject: [PATCH RFC 08/38] powerpc/rtasd: zero the error log buffer X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261102-work-procfs-bugfixes-v1-8-59422ed3e465@kernel.org> References: <20261102-work-procfs-bugfixes-v1-0-59422ed3e465@kernel.org> In-Reply-To: <20261102-work-procfs-bugfixes-v1-0-59422ed3e465@kernel.org> 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 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=owGbwMvMwCU28Zj0gdSKO4sYT6slMWS9mJPVPCc69ObBpPxKX4EYzdNd5y45M2a5nV4sMttfg 33rv7e/O0pZGMS4GGTFFFkc2k3C5ZbzVGw2ytSAmcPKBDKEgYtTACZiaczwz+Dyc7k7r3mYHj8r qAndMSu2XSZzkQ7vApuNf60/cn9tncPwT29znoj0AvYqkRyWAyJMCsl27rNKA0KeH+L9eOAi76W pfAA= X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 6065740005 X-Stat-Signature: wk56puchq4yjxcmicgu7xwyt831rah43 X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=4.0.1 X-Rspam-User: X-HE-Tag: 1793629420-194358 X-HE-Meta: U2FsdGVkX1+K26gTbvw2mGXnnkF364JAcPKAx4rdK3PNPfOcaNyFLLyHk7tAb055fsejSQtz0G1bg/gMjwUEReyJpbvPgOcQNiY+MiIFp3BfkKxBhaYn2Az0UkVICBW8DYF6t8qvwDyQTBFYbAX2tnNCUlbtDbJaBbcQ6UZt9LXl+4NGeku04jHrY9wlJMPEQh9JvN6u7wqm1Kv1x1vtHd1qQWL2Q0gylOQ3ajehQ1MTWX4vr302JYHKWUfyhaxqPt8bM1HCE9HZ3o51tZ9FB8tVJWxxJbbUFKH+tAo0nweWjQxnCWlKucRiw2Xux+YbYIvoYcVAd9tdo3hBLMlTWrmO+g19jz/8W3KWdAd3rcR5Kxx8qL6BLMUWjuEHApfe0MNPS53xRCqpeOwpfEyxiTRyCkPlCE75j8wkZRfHMMJBWAN5Cd+Gz3GpK5eQU0s1CRAzepx5sIPI8sidUqi68LOcGC312qX7AhZyxjFlA15sBN1tuqf+NADQfTW10tQgyMloYo3TfMvCuwPh/iwtCe2jGqybJ56ZXjll5msyCa2tdg1kCbxX+UVxWeYaiwOMiaVkAzeAIPStWT3f+Z/QwakJ5FsUka9AODUdPJcCquBvQdBQVNE1x+wmjym0ax5YFTWkItAuES+xUeOwIdDbHlov1AY4HFiejduiJQMUDYosUAlU/YgkjyJPAlqGfzUsi7G2fuI4XqlWYc1YdpPCUtgMdHB2Yf8je8g4nEoa0hnsiF3IfbLhj+ovl9Pm1ddmjUhYRjRoSZj4mQdrfUnomtNTNk+sSePHnnKlMgTelyJIGO4gs7C8fl0aKAXRvLHUjvgHJn9MCWIQXEzMtmQePWXgIUFdZm2nOErq/MkKcUea/Yjn4rlHEuX7AdOgcpecuIQ1J0NL3GmiStUFb9EttPE6fszJJu0WlDJph3X9aKOKqgKmNihqKJmVo8UuownQRdneM4Y0n528q8ZInGq 6Db+xkri 2rufIFjt2k9m414o+tNRErdV5Tkf3Kp9+DRcnVmqm+5cdXvaYQpx2rg6VJ52O2MZjS63XY9QxEwwsqmmv8upG+29pvK4LUm3/Ib9lVQgnxjqSBqEfVoDYT6Han2kKxZeAeOZa5yuFhxjNROniVnykqJ8uVThxSZx9qpPgqBvEpu1S0jHoEfx8MkqbRsidjtzetLF0P+UWBu7VLq3gdgOwGl21l1FVcXyO5vPMsEI/GsZgELiQ8LNmVZVoj2zFrCJDJ6wLN95S9ExpRewvuAHi+cwuFJ/V/uMIRMSi Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: 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