Messages in this thread | | | From | Kai-Heng Feng <> | Date | Wed, 13 Dec 2023 09:59:03 +0800 | Subject | Re: [PATCH] ASoC: hdac_hda: Fix NULL pointer dereference when hda_pvt is not set |
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Hi,
On Tue, Dec 12, 2023 at 8:45 PM Kai Vehmanen <kai.vehmanen@linux.intel.com> wrote: > > Hi, > > On Tue, 12 Dec 2023, Kai-Heng Feng wrote: > > > Kernel splat can be found on boot: > > [ 7.906438] BUG: kernel NULL pointer dereference, address: 0000000000000078 > > [ 7.906449] #PF: supervisor read access in kernel mode > > [ 7.906455] #PF: error_code(0x0000) - not-present page > [...] > > This is caused by attempting to dereference hda_pvt, so check if it's > > NULL before using it. > > > > Fixes: a0575b4add21 ("ASoC: hdac_hda: Conditionally register dais for HDMI and Analog") > > can you try this fix already merged to Mark's tree (merged on 7th Dec): > > "ASoC: SOF: Intel: hda-codec: Delay the codec device registration" > https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git/commit/?id=ce17aa4cf2db7d6b95a3f854ac52d0d49881dd49
Yes this commit fixes the issue. Thanks!
Kai-Heng
> > Br, Kai
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