Medium 5.5Published Oct 4, 2025

CVE-2025-39938ASoC: qcom: q6apm-lpass-dais: Fix NULL pointer dereference if source graph failed

Updated under an hour ago (Oct 28, 2026, 9:10 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: ASoC: qcom: q6apm-lpass-dais: Fix NULL pointer dereference if source graph failed If earlier opening of source graph fails (e.g. ADSP rejects due to incorrect audioreach topology), the graph is closed and "dai_data->graph[dai->id]" is assigned NULL. Preparing the DAI for sink graph continues though and next call to q6apm_lpass_dai_prepare() receives dai_data->graph[dai->id]=NULL leading to NULL pointer exception: qcom-apm gprsvc:service:2:1: Error (1) Processing 0x01001002 cmd qcom-apm gprsvc:service:2:1: DSP returned error[1001002] 1 q6apm-lpass-dais 30000000.remoteproc:glink-edge:gpr:service@1:bedais: fail to start APM port 78 q6apm-lpass-dais 30000000.remoteproc:glink-edge:gpr:service@1:bedais: ASoC: error at snd_soc_pcm_dai_prepare on TX_CODEC_DMA_TX_3: -22 Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a8 ... Call trace: q6apm_graph_media_format_pcm+0x48/0x120 (P) q6apm_lpass_dai_prepare+0x110/0x1b4 snd_soc_pcm_dai_prepare+0x74/0x108 __soc_pcm_prepare+0x44/0x160 dpcm_be_dai_prepare+0x124/0x1c0

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 19, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	30ad723b93ade607a678698e5947a55a4375c3a1 builds before 01d1ba106c9e02a2e7d41e07be49031a0ff0ecaa; from 30ad723b93ade607a678698e5947a55a4375c3a1 before 411f7d4f7038200cdf6d4f71ee31026ebf2dfedb; 30ad723b93ade607a678698e5947a55a4375c3a1 builds before 9c534dbfd1726502abcf0bd393a04214f62c050b; from 30ad723b93ade607a678698e5947a55a4375c3a1 before cc336b242ea7e7a09b3ab9f885341455ca0a3bdb; from 30ad723b93ade607a678698e5947a55a4375c3a1 before 68f27f7c7708183e7873c585ded2f1b057ac5b97	CNA record
linux linux_kernel linux:linux_kernel	from 5.16 before 6.1.154; from 6.2 before 6.6.108; from 6.7 before 6.12.49; from 6.13 before 6.16.9; 6.17; 6.17; 6.17; 6.17; and 2 more ranges	NVD

References

References

https://git.kernel.org/stable/c/01d1ba106c9e02a2e7d41e07be49031a0ff0ecaa	patch
https://git.kernel.org/stable/c/411f7d4f7038200cdf6d4f71ee31026ebf2dfedb	patch
https://git.kernel.org/stable/c/9c534dbfd1726502abcf0bd393a04214f62c050b	patch
https://git.kernel.org/stable/c/cc336b242ea7e7a09b3ab9f885341455ca0a3bdb	patch
https://git.kernel.org/stable/c/68f27f7c7708183e7873c585ded2f1b057ac5b97	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.