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Sun, 27 Sep 2026 08:22:23 -0700 (PDT) Date: Sun, 27 Sep 2026 18:22:20 +0300 From: Dan Carpenter To: oe-kbuild@lists.linux.dev, Vijendar Mukunda Cc: lkp@intel.com, oe-kbuild-all@lists.linux.dev, Mark Brown Subject: [linux-next:master 6294/10910] sound/soc/sof/amd/acp.c:1469 handle_amd_sof_acp7x_sdw_pme_event() error: buffer overflow 'adata->sdw->pdev' 2 <= 3 Message-ID: <202609271355.u0pymQoF-lkp@intel.com> 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 Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: f5f84daefcd92d7a630066635ecea1433ed5eac7 commit: be2823854e00558f46f5bbb124bb3f3a3bb9a94a [6294/10910] ASoC: SOF: amd: add SoundWire PM ops for ACP7.B/7.F config: i386-randconfig-2200-20260927 (https://download.01.org/0day-ci/archive/20260927/202609271355.u0pymQoF-lkp@intel.com/config) compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1) smatch: v0.5.0-9187-g5189e3fb 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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202609271355.u0pymQoF-lkp@intel.com/ New smatch warnings: sound/soc/sof/amd/acp.c:1469 handle_amd_sof_acp7x_sdw_pme_event() error: buffer overflow 'adata->sdw->pdev' 2 <= 3 Old smatch warnings: sound/soc/sof/amd/acp.c:663 sof_amd_handle_acp7x_sdw_wake_event() error: buffer overflow 'adata->sdw->pdev' 2 <= 3 sound/soc/sof/amd/acp.c:666 sof_amd_handle_acp7x_sdw_wake_event() error: buffer overflow 'adata->sdw->pdev' 2 <= 3 sound/soc/sof/amd/acp.c:1472 handle_amd_sof_acp7x_sdw_pme_event() error: buffer overflow 'adata->sdw->pdev' 2 <= 3 vim +1469 sound/soc/sof/amd/acp.c be2823854e0055 Vijendar Mukunda 2026-09-10 1440 static void handle_amd_sof_acp7x_sdw_pme_event(struct snd_sof_dev *sdev) be2823854e0055 Vijendar Mukunda 2026-09-10 1441 { be2823854e0055 Vijendar Mukunda 2026-09-10 1442 struct acp_dev_data *adata; be2823854e0055 Vijendar Mukunda 2026-09-10 1443 struct amd_sdw_manager *amd_manager; be2823854e0055 Vijendar Mukunda 2026-09-10 1444 u32 sdw_pme_stat; be2823854e0055 Vijendar Mukunda 2026-09-10 1445 u32 sdw_wake_en; be2823854e0055 Vijendar Mukunda 2026-09-10 1446 u32 pme_reg; be2823854e0055 Vijendar Mukunda 2026-09-10 1447 u32 wake_mask; be2823854e0055 Vijendar Mukunda 2026-09-10 1448 unsigned int instance; be2823854e0055 Vijendar Mukunda 2026-09-10 1449 be2823854e0055 Vijendar Mukunda 2026-09-10 1450 adata = sdev->pdata->hw_pdata; be2823854e0055 Vijendar Mukunda 2026-09-10 1451 if (!adata->sdw) be2823854e0055 Vijendar Mukunda 2026-09-10 1452 return; be2823854e0055 Vijendar Mukunda 2026-09-10 1453 be2823854e0055 Vijendar Mukunda 2026-09-10 1454 for (instance = 0; instance < ACP7X_SDW_MAX_MANAGER_COUNT; instance++) { be2823854e0055 Vijendar Mukunda 2026-09-10 1455 pme_reg = ACP7X_SW_PME_STS + (instance * 4); be2823854e0055 Vijendar Mukunda 2026-09-10 1456 wake_mask = ACP7X_SW_WAKE_EN_MASK << instance; be2823854e0055 Vijendar Mukunda 2026-09-10 1457 be2823854e0055 Vijendar Mukunda 2026-09-10 1458 sdw_pme_stat = snd_sof_dsp_read(sdev, ACP_DSP_BAR, pme_reg); be2823854e0055 Vijendar Mukunda 2026-09-10 1459 if (!sdw_pme_stat) be2823854e0055 Vijendar Mukunda 2026-09-10 1460 continue; be2823854e0055 Vijendar Mukunda 2026-09-10 1461 be2823854e0055 Vijendar Mukunda 2026-09-10 1462 mutex_lock(&adata->acp_lock); be2823854e0055 Vijendar Mukunda 2026-09-10 1463 sdw_wake_en = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP7X_SW_WAKE_EN); be2823854e0055 Vijendar Mukunda 2026-09-10 1464 sdw_wake_en &= ~wake_mask; be2823854e0055 Vijendar Mukunda 2026-09-10 1465 snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP7X_SW_WAKE_EN, sdw_wake_en); be2823854e0055 Vijendar Mukunda 2026-09-10 1466 mutex_unlock(&adata->acp_lock); be2823854e0055 Vijendar Mukunda 2026-09-10 1467 snd_sof_dsp_write(sdev, ACP_DSP_BAR, pme_reg, sdw_pme_stat); be2823854e0055 Vijendar Mukunda 2026-09-10 1468 be2823854e0055 Vijendar Mukunda 2026-09-10 @1469 if (!adata->sdw->pdev[instance]) ^^^^^^^^^^^^^^^^^^^^^^^^^^ Feels like a bug. AMD_SDW_MAX_MANAGER_COUNT(2) vs ACP7X_SDW_MAX_MANAGER_COUNT(4) be2823854e0055 Vijendar Mukunda 2026-09-10 1470 continue; be2823854e0055 Vijendar Mukunda 2026-09-10 1471 be2823854e0055 Vijendar Mukunda 2026-09-10 1472 amd_manager = dev_get_drvdata(&adata->sdw->pdev[instance]->dev); be2823854e0055 Vijendar Mukunda 2026-09-10 1473 if (amd_manager) be2823854e0055 Vijendar Mukunda 2026-09-10 1474 pm_request_resume(amd_manager->dev); be2823854e0055 Vijendar Mukunda 2026-09-10 1475 } be2823854e0055 Vijendar Mukunda 2026-09-10 1476 } -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) (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 3095D3C1D7B for ; Sun, 27 Sep 2026 12:03:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.7 ARC-Seal:i=1; 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27 Sep 2026 05:03:26 -0700 X-CSE-ConnectionGUID: VkejHZqITJGGpY8lMvHy3Q== X-CSE-MsgGUID: RE+TamBYTbmropBKwqSPFg== X-ExtLoop1: 1 Received: from igk-lkp-server01.igk.intel.com (HELO 04362d00df5a) ([10.211.93.152]) by fmviesa003.fm.intel.com with ESMTP; 27 Sep 2026 05:03:25 -0700 Received: from kbuild by 04362d00df5a with local (Exim 4.98.2) (envelope-from ) id 1xAnbG-000000000ZN-1zlX; Sun, 27 Sep 2026 12:03:22 +0000 Date: Sun, 27 Sep 2026 14:02:40 +0200 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Dan Carpenter Subject: [linux-next:master 6294/10910] sound/soc/sof/amd/acp.c:1469 handle_amd_sof_acp7x_sdw_pme_event() error: buffer overflow 'adata->sdw->pdev' 2 <= 3 Message-ID: <202609271355.u0pymQoF-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev TO: Vijendar Mukunda CC: Mark Brown tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: f5f84daefcd92d7a630066635ecea1433ed5eac7 commit: be2823854e00558f46f5bbb124bb3f3a3bb9a94a [6294/10910] ASoC: SOF: amd: add SoundWire PM ops for ACP7.B/7.F :::::: branch date: 2 days ago :::::: commit date: 10 days ago config: i386-randconfig-2200-20260927 (https://download.01.org/0day-ci/archive/20260927/202609271355.u0pymQoF-lkp@intel.com/config) compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1) smatch: v0.5.0-9187-g5189e3fb 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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202609271355.u0pymQoF-lkp@intel.com/ New smatch warnings: sound/soc/sof/amd/acp.c:1469 handle_amd_sof_acp7x_sdw_pme_event() error: buffer overflow 'adata->sdw->pdev' 2 <= 3 Old smatch warnings: sound/soc/sof/amd/acp.c:663 sof_amd_handle_acp7x_sdw_wake_event() error: buffer overflow 'adata->sdw->pdev' 2 <= 3 sound/soc/sof/amd/acp.c:666 sof_amd_handle_acp7x_sdw_wake_event() error: buffer overflow 'adata->sdw->pdev' 2 <= 3 sound/soc/sof/amd/acp.c:1472 handle_amd_sof_acp7x_sdw_pme_event() error: buffer overflow 'adata->sdw->pdev' 2 <= 3 vim +1469 sound/soc/sof/amd/acp.c 78d99c2c5eee0f Vijendar Mukunda 2026-07-01 1439 be2823854e0055 Vijendar Mukunda 2026-09-10 1440 static void handle_amd_sof_acp7x_sdw_pme_event(struct snd_sof_dev *sdev) be2823854e0055 Vijendar Mukunda 2026-09-10 1441 { be2823854e0055 Vijendar Mukunda 2026-09-10 1442 struct acp_dev_data *adata; be2823854e0055 Vijendar Mukunda 2026-09-10 1443 struct amd_sdw_manager *amd_manager; be2823854e0055 Vijendar Mukunda 2026-09-10 1444 u32 sdw_pme_stat; be2823854e0055 Vijendar Mukunda 2026-09-10 1445 u32 sdw_wake_en; be2823854e0055 Vijendar Mukunda 2026-09-10 1446 u32 pme_reg; be2823854e0055 Vijendar Mukunda 2026-09-10 1447 u32 wake_mask; be2823854e0055 Vijendar Mukunda 2026-09-10 1448 unsigned int instance; be2823854e0055 Vijendar Mukunda 2026-09-10 1449 be2823854e0055 Vijendar Mukunda 2026-09-10 1450 adata = sdev->pdata->hw_pdata; be2823854e0055 Vijendar Mukunda 2026-09-10 1451 if (!adata->sdw) be2823854e0055 Vijendar Mukunda 2026-09-10 1452 return; be2823854e0055 Vijendar Mukunda 2026-09-10 1453 be2823854e0055 Vijendar Mukunda 2026-09-10 1454 for (instance = 0; instance < ACP7X_SDW_MAX_MANAGER_COUNT; instance++) { be2823854e0055 Vijendar Mukunda 2026-09-10 1455 pme_reg = ACP7X_SW_PME_STS + (instance * 4); be2823854e0055 Vijendar Mukunda 2026-09-10 1456 wake_mask = ACP7X_SW_WAKE_EN_MASK << instance; be2823854e0055 Vijendar Mukunda 2026-09-10 1457 be2823854e0055 Vijendar Mukunda 2026-09-10 1458 sdw_pme_stat = snd_sof_dsp_read(sdev, ACP_DSP_BAR, pme_reg); be2823854e0055 Vijendar Mukunda 2026-09-10 1459 if (!sdw_pme_stat) be2823854e0055 Vijendar Mukunda 2026-09-10 1460 continue; be2823854e0055 Vijendar Mukunda 2026-09-10 1461 be2823854e0055 Vijendar Mukunda 2026-09-10 1462 mutex_lock(&adata->acp_lock); be2823854e0055 Vijendar Mukunda 2026-09-10 1463 sdw_wake_en = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP7X_SW_WAKE_EN); be2823854e0055 Vijendar Mukunda 2026-09-10 1464 sdw_wake_en &= ~wake_mask; be2823854e0055 Vijendar Mukunda 2026-09-10 1465 snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP7X_SW_WAKE_EN, sdw_wake_en); be2823854e0055 Vijendar Mukunda 2026-09-10 1466 mutex_unlock(&adata->acp_lock); be2823854e0055 Vijendar Mukunda 2026-09-10 1467 snd_sof_dsp_write(sdev, ACP_DSP_BAR, pme_reg, sdw_pme_stat); be2823854e0055 Vijendar Mukunda 2026-09-10 1468 be2823854e0055 Vijendar Mukunda 2026-09-10 @1469 if (!adata->sdw->pdev[instance]) be2823854e0055 Vijendar Mukunda 2026-09-10 1470 continue; be2823854e0055 Vijendar Mukunda 2026-09-10 1471 be2823854e0055 Vijendar Mukunda 2026-09-10 1472 amd_manager = dev_get_drvdata(&adata->sdw->pdev[instance]->dev); be2823854e0055 Vijendar Mukunda 2026-09-10 1473 if (amd_manager) be2823854e0055 Vijendar Mukunda 2026-09-10 1474 pm_request_resume(amd_manager->dev); be2823854e0055 Vijendar Mukunda 2026-09-10 1475 } be2823854e0055 Vijendar Mukunda 2026-09-10 1476 } be2823854e0055 Vijendar Mukunda 2026-09-10 1477 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki