[{"id":3679724,"web_url":"http://patchwork.ozlabs.org/comment/3679724/","msgid":"<87a4uwn3ed.fsf@prevas.dk>","list_archive_url":null,"date":"2026-04-21T08:06:34","subject":"Re: [PATCH] common: cli_hush: fix console_buffer overflow on boot\n retry","submitter":{"id":89443,"url":"http://patchwork.ozlabs.org/api/people/89443/","name":"Rasmus Villemoes","email":"ravi@prevas.dk"},"content":"On Tue, Apr 21 2026, Ngo Luong Thanh Tra wrote:\n\n> Add const_strcpy() macro to linux/build_bug.h that enforces at\n> compile time that the destination is a writable char array (not char *\n> or const char *), the source is a string literal, and the source fits\n> in the destination including the NUL terminator.\n>\n> Fix the console_buffer extern declaration in console.h to include the\n> array size so sizeof(console_buffer) is valid at call sites.\n>\n> Replace unbounded strcpy() in cli_hush.c with const_strcpy().\n>\n> Fixes: 657e19f8f2dd (\"cli_hush: support running bootcmd on boot retry\")\n>\n> Changes in v4:\n> - Rebased on top of current master (as requested by Tom Rini)\n>\n> Changes in v3:\n> - Reject const char * destinations in const_strcpy() (Simon Glass)\n>\n> Signed-off-by: Ngo Luong Thanh Tra \n> ---\n\n\nHi Ngo\n\nPlease address the feedback I gave in\nhttps://lore.kernel.org/u-boot/87zf3co6pz.fsf@prevas.dk/.\n\nAlso, two things on creating patches:\n\nWhen you create a new version of a patch (or patch series), please use\n\"git format-patch -vX\" where X is the version number. For the next one\nthat would be \"-v5\". Then git will use the subject prefix \"[PATCH v5]\"\ninstead of merely \"[PATCH]\", making it easier to distinguish the\ndifferent ones in one's inbox or on lore.kernel.org/u-boot.\n\nSecond, the informative \"Changes in vX:\" stuff should go below the ---,\nas it is not part of the commit message and should not be part of the\npermanent git history once the patch is accepted.\n\nRasmus","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=prevas.dk header.i=@prevas.dk header.a=rsa-sha256\n header.s=selector1 header.b=T7NtOYWY;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; helo=phobos.denx.de;\n envelope-from=u-boot-bounces@lists.denx.de; receiver=patchwork.ozlabs.org)","phobos.denx.de;\n dmarc=pass (p=reject dis=none) header.from=prevas.dk","phobos.denx.de;\n spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de","phobos.denx.de;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=prevas.dk header.i=@prevas.dk header.b=\"T7NtOYWY\";\n\tdkim-atps=neutral","phobos.denx.de;\n dmarc=pass (p=reject dis=none) header.from=prevas.dk","phobos.denx.de;\n spf=pass smtp.mailfrom=rasmus.villemoes@prevas.dk","dkim=none (message not signed)\n header.d=none;dmarc=none action=none header.from=prevas.dk;"],"Received":["from phobos.denx.de (phobos.denx.de\n [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g0FLX70vYz1yCv\n\tfor ; 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For the next one\n> that would be \"-v5\". Then git will use the subject prefix \"[PATCH v5]\"\n> instead of merely \"[PATCH]\", making it easier to distinguish the\n> different ones in one's inbox or on lore.kernel.org/u-boot.\n>\n> Second, the informative \"Changes in vX:\" stuff should go below the ---,\n> as it is not part of the commit message and should not be part of the\n> permanent git history once the patch is accepted.\n\nYou can also use patman which lets you add a 'Series-version: 5' line\nin the commit and handles putting the change log in the right place.\n\nRegards,\nSimon","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=chromium.org header.i=@chromium.org header.a=rsa-sha256\n header.s=google header.b=YYtgtIyL;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=85.214.62.61; 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