* [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
@ 2026-09-27 15:22 ` Dan Carpenter
0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2026-09-27 12:02 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp, Dan Carpenter
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
CC: Mark Brown <broonie@kernel.org>
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 <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| 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
^ permalink raw reply [flat|nested] 5+ messages in thread* [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
@ 2026-09-27 15:22 ` Dan Carpenter
0 siblings, 0 replies; 5+ messages in thread
From: Dan Carpenter @ 2026-09-27 15:22 UTC (permalink / raw)
To: oe-kbuild, Vijendar Mukunda; +Cc: lkp, oe-kbuild-all, 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
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 <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| 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
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [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
2026-09-27 15:22 ` Dan Carpenter
(?)
@ 2026-09-27 15:59 ` Mukunda,Vijendar
2026-09-28 6:52 ` Dan Carpenter
-1 siblings, 1 reply; 5+ messages in thread
From: Mukunda,Vijendar @ 2026-09-27 15:59 UTC (permalink / raw)
To: Dan Carpenter, oe-kbuild
Cc: lkp, oe-kbuild-all, Mark Brown, Mario Limonciello,
Dommati, Sunil-kumar, Prasad, Prasad, Syed Saba Kareem
On 9/27/26 20:52, Dan Carpenter wrote:
> [You don't often get email from error27@gmail.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
>
> 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 <lkp@intel.com>
> | Reported-by: Dan Carpenter <error27@gmail.com>
> | 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
++
Thank you for the report. This smatch warning is reported because the
ACP7.B/7.F SoundWire specific patches have not yet landed. Those patches
add support for 4 SoundWire manager instances and allocate the platform
device array based on the maximum instance count, which resolves the
buffer overflow concern flagged here. We are currently waiting for the
dependent patch series to complete upstream review:
https://lkml.org/lkml/2026/9/17/1422
https://lkml.org/lkml/2026/9/17/2552 If the review of the above series
takes longer, we will post the ACP7.B/7.F SoundWire patches for upstream
review independently and include a note in the cover letter documenting
the patch series dependency.
>
> 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
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [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
2026-09-27 15:59 ` Mukunda,Vijendar
@ 2026-09-28 6:52 ` Dan Carpenter
2026-09-28 19:49 ` Mukunda,Vijendar
0 siblings, 1 reply; 5+ messages in thread
From: Dan Carpenter @ 2026-09-28 6:52 UTC (permalink / raw)
To: Mukunda,Vijendar
Cc: oe-kbuild, lkp, oe-kbuild-all, Mark Brown, Mario Limonciello,
Dommati, Sunil-kumar, Prasad, Prasad, Syed Saba Kareem
On Sun, Sep 27, 2026 at 09:29:09PM +0530, Mukunda,Vijendar wrote:
>
>
> On 9/27/26 20:52, Dan Carpenter wrote:
> > [You don't often get email from error27@gmail.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
> >
> > 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 <lkp@intel.com>
> > | Reported-by: Dan Carpenter <error27@gmail.com>
> > | 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
> ++
>
> Thank you for the report. This smatch warning is reported because the
> ACP7.B/7.F SoundWire specific patches have not yet landed. Those patches add
> support for 4 SoundWire manager instances and allocate the platform device
> array based on the maximum instance count, which resolves the buffer
> overflow concern flagged here. We are currently waiting for the dependent
> patch series to complete upstream review:
> https://lkml.org/lkml/2026/9/17/1422 https://lkml.org/lkml/2026/9/17/2552 If
> the review of the above series takes longer, we will post the ACP7.B/7.F
> SoundWire patches for upstream review independently and include a note in
> the cover letter documenting the patch series dependency.
Just to be clear, it looks like the bug is there in linux-next already.
Btw, it's better to link to lore.kernel.org instead of lkml.org because
everyone uses b4 these days and we need the email's msg-id and lkml.org
doesn't give you that.
regards,
dan carpenter
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [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
2026-09-28 6:52 ` Dan Carpenter
@ 2026-09-28 19:49 ` Mukunda,Vijendar
0 siblings, 0 replies; 5+ messages in thread
From: Mukunda,Vijendar @ 2026-09-28 19:49 UTC (permalink / raw)
To: Dan Carpenter
Cc: oe-kbuild, lkp, oe-kbuild-all, Mark Brown, Mario Limonciello,
Dommati, Sunil-kumar, Prasad, Prasad, Syed Saba Kareem
On 9/28/26 12:22, Dan Carpenter wrote:
> [You don't often get email from error27@gmail.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
>
> On Sun, Sep 27, 2026 at 09:29:09PM +0530, Mukunda,Vijendar wrote:
>>
>> On 9/27/26 20:52, Dan Carpenter wrote:
>>> [You don't often get email from error27@gmail.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
>>>
>>> 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 <lkp@intel.com>
>>> | Reported-by: Dan Carpenter <error27@gmail.com>
>>> | 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
>> ++
>>
>> Thank you for the report. This smatch warning is reported because the
>> ACP7.B/7.F SoundWire specific patches have not yet landed. Those patches add
>> support for 4 SoundWire manager instances and allocate the platform device
>> array based on the maximum instance count, which resolves the buffer
>> overflow concern flagged here. We are currently waiting for the dependent
>> patch series to complete upstream review:
>> https://lkml.org/lkml/2026/9/17/1422 https://lkml.org/lkml/2026/9/17/2552 If
>> the review of the above series takes longer, we will post the ACP7.B/7.F
>> SoundWire patches for upstream review independently and include a note in
>> the cover letter documenting the patch series dependency.
> Just to be clear, it looks like the bug is there in linux-next already.
>
> Btw, it's better to link to lore.kernel.org instead of lkml.org because
> everyone uses b4 these days and we need the email's msg-id and lkml.org
> doesn't give you that.
>
> regards,
> dan carpenter
Below is the dependent patch series.
https://lore.kernel.org/alsa-devel/20260917090407.3828816-1-Vijendar.Mukunda@amd.com/T/#t
https://lore.kernel.org/alsa-devel/305d8770-50f5-4489-a901-f73069a1b964@amd.com/T/#t
Will share the link once the ACP7.B/7.F SoundWire patches are posted for
upstream
on top of the dependent series.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2026-09-28 19:50 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-09-27 12:02 [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 kernel test robot
2026-09-27 15:22 ` Dan Carpenter
2026-09-27 15:59 ` Mukunda,Vijendar
2026-09-28 6:52 ` Dan Carpenter
2026-09-28 19:49 ` Mukunda,Vijendar
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