From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (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 D56CF28B7EA for ; Mon, 10 Aug 2026 16:03:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786377824; cv=none; b=j5VZc6xs87ay34GFzFTXpjfzReTaIOOJYJKplTaU5peMMqFrL59eCTCffNsrITbE5Q8iNCLv7HC041kfOG2La6nbpTsr5TQBqrZ6xl9XCAq8Isd97jrFMyduXEukQJW5AiQsAUgSEECF/fof9SUq+qFLs9wSLXe1PGDAwoASEUY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786377824; c=relaxed/simple; bh=8WbCUogRFRI5Vg2IpcgfWdVxQyI6Ic3IJRLSEUxRJuE=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type; b=HlooFgJnRaQq5SvAxOaTUy2/Pc5w3YqLTZh3gPam06OhwfXfokJwBcW/aBZufg7/sMHPG5M4scNGCvnreTsVD9WDE48jcW/dZXf/xDAKtwTZxUT9CDGIzjG7Aab7JqjAipuIg4h/P/BVNSCpwHV+AbFuu1FPYOy04erBe68lE1Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=L95XVKzd; arc=none smtp.client-ip=192.198.163.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="L95XVKzd" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1786377823; x=1817913823; h=date:from:to:cc:subject:message-id:mime-version; bh=8WbCUogRFRI5Vg2IpcgfWdVxQyI6Ic3IJRLSEUxRJuE=; b=L95XVKzdz9Hcu/eKOvZ4C8ahUpAkVZj0YTjz1IRM6Md6gTHYBfxcy9dR XOKSPhSd5lnIBhBvc5mj2TxHyuemVVG9bQ6zTFmu8bmPM0n34Zm5jhVkI Tl1Y9JdldtxRtq9QRjqAhgWHRcDa2fGsseLmnsecKBmrNg+8Viud+wnXb AF0z85alxfSlw/OMKknEkuWFikn79eRf74SvoAfDExPHKY7mDQ1624c/C 2xDCGH2UhEg6KCmEt6ZAuTy8jOkdA04O7LrUxV3eQlOix2RKsXIXoIxM3 4YQouUT1oeEN5afXNuQOqqFHl/N/2DokI1L9kVJJmZUEbWnNyMd1qu/CB A==; X-CSE-ConnectionGUID: x6Zm2wKRRw+QS3uxZ6bCpA== X-CSE-MsgGUID: /lqCcGfGSHK1C0rIaWyXtg== X-IronPort-AV: E=McAfee;i="6800,10657,11871"; a="85864435" X-IronPort-AV: E=Sophos;i="6.25,216,1779174000"; d="scan'208";a="85864435" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Aug 2026 09:03:42 -0700 X-CSE-ConnectionGUID: 9qQHxv5uQv2TbMhW1MvAjg== X-CSE-MsgGUID: J40jWi0xTBCyVuY8O0gnyg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,216,1779174000"; d="scan'208";a="293002459" Received: from lkp-server01.sh.intel.com (HELO 6eda058d650d) ([10.239.97.150]) by orviesa002.jf.intel.com with ESMTP; 10 Aug 2026 09:03:41 -0700 Received: from kbuild by 6eda058d650d with local (Exim 4.98.2) (envelope-from ) id 1wtSTS-00000000NUE-2emo; Mon, 10 Aug 2026 16:03:38 +0000 Date: Tue, 11 Aug 2026 00:02:38 +0800 From: kernel test robot To: "Maxime =?utf-8?Q?B=C3=A9lair"?= Cc: oe-kbuild-all@lists.linux.dev, John Johansen Subject: [jj-apparmor:apparmor-next 3/14] security/apparmor/apparmorfs.c:519:undefined reference to `zstd_get_frame_header' Message-ID: <202608102327.CqRygLiZ-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii tree: https://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor.git apparmor-next head: 1555a0e2a149cba4578f5270e7fb9efb420b985f commit: 17b5758bf35c7a113363cd7a350b7e6a251b80f4 [3/14] apparmor: Initial support for compressed policies config: x86_64-randconfig-004-20260810 (https://download.01.org/0day-ci/archive/20260810/202608102327.CqRygLiZ-lkp@intel.com/config) compiler: gcc-12 (Debian 12.4.0-5) 12.4.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260810/202608102327.CqRygLiZ-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202608102327.CqRygLiZ-lkp@intel.com/ Note: the jj-apparmor/apparmor-next HEAD 1555a0e2a149cba4578f5270e7fb9efb420b985f builds fine. It only hurts bisectability. All errors (new ones prefixed by >>): ld: security/apparmor/apparmorfs.o: in function `aa_get_data_from_compressed': >> security/apparmor/apparmorfs.c:519:(.text+0x2c21): undefined reference to `zstd_get_frame_header' ld: security/apparmor/apparmorfs.c:533:(.text+0x2cac): undefined reference to `decompress_zstd' vim +519 security/apparmor/apparmorfs.c 442 443 444 /* 445 * aa_fs - policy load/replace/remove 446 */ 447 448 /** 449 * aa_simple_write_to_buffer - common routine for getting policy from user 450 * @userbuf: user buffer to copy data from (NOT NULL) 451 * @alloc_size: size of user buffer (REQUIRES: @alloc_size >= @copy_size) 452 * @copy_size: size of data to copy from user buffer 453 * @pos: position write is at in the file (NOT NULL) 454 * 455 * Returns: kernel buffer containing copy of user buffer data or an 456 * ERR_PTR on failure. 457 */ 458 static struct aa_loaddata *aa_simple_write_to_buffer(const char __user *userbuf, 459 size_t alloc_size, 460 size_t copy_size, 461 loff_t *pos) 462 { 463 struct aa_loaddata *data; 464 465 AA_BUG(copy_size > alloc_size); 466 467 if (*pos != 0) 468 /* only writes from pos 0, that is complete writes */ 469 return ERR_PTR(-ESPIPE); 470 471 /* freed by caller to simple_write_to_buffer */ 472 data = aa_loaddata_alloc(alloc_size); 473 if (IS_ERR(data)) 474 return data; 475 476 data->size = copy_size; 477 if (copy_from_user(data->data, userbuf, copy_size)) { 478 /* trigger free - don't need to put pcount */ 479 aa_put_i_loaddata(data); 480 return ERR_PTR(-EFAULT); 481 } 482 483 return data; 484 } 485 static int decompress_zstd(char *src, size_t slen, char *dst, size_t dlen); 486 /** 487 * aa_get_data_from_compressed - common routine for getting compressed policy 488 * from user and get both compressed and uncompressed version. 489 * @userbuf: user buffer to copy data from (NOT NULL) 490 * @buffer_size: size of user buffer 491 * @pos: position write is at in the file (NOT NULL) 492 * @compressed_data Ptr on compressed data. *compressed_data is allocated there 493 * 494 * Returns: kernel buffer containing copy of user buffer data or an 495 * ERR_PTR on failure. 496 */ 497 498 static struct aa_loaddata *aa_get_data_from_compressed(const char __user *userbuf, 499 size_t buffer_size, 500 loff_t *pos, 501 char **compressed_data) 502 { 503 struct aa_loaddata *data; 504 zstd_frame_header header; 505 int error; 506 507 if (!userbuf || !pos) 508 return ERR_PTR(-EINVAL); 509 if (*pos) 510 return ERR_PTR(-ESPIPE); 511 512 *compressed_data = kvmalloc(buffer_size, GFP_KERNEL); 513 if (!*compressed_data) 514 return ERR_PTR(-ENOMEM); 515 error = copy_from_user(*compressed_data, userbuf, buffer_size); 516 if (error) 517 goto fail; 518 > 519 error = zstd_get_frame_header(&header, *compressed_data, buffer_size); 520 if (error || header.frameContentSize == ZSTD_CONTENTSIZE_UNKNOWN || 521 header.frameContentSize == ZSTD_CONTENTSIZE_ERROR) { 522 error = -EINVAL; 523 goto fail; 524 } 525 526 data = aa_loaddata_alloc(header.frameContentSize); 527 if (IS_ERR(data)) { 528 error = PTR_ERR(data); 529 goto fail; 530 } 531 532 // We then decompress the data 533 error = decompress_zstd(*compressed_data, buffer_size, data->data, 534 header.frameContentSize); 535 if (error) 536 goto fail_decompress; 537 538 data->size = header.frameContentSize; 539 return data; 540 541 fail_decompress: 542 aa_put_i_loaddata(data); 543 fail: 544 kvfree(*compressed_data); 545 return ERR_PTR(error); 546 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki