CVE-2025-39938
Estado: AnalizadaMedia (5.5)—
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:
Detalles técnicos trazas, registros y código del informe original
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
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.15%
- Percentil entre todas las CVEs puntuadas: 3
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-476
Referencias
- https://git.kernel.org/stable/c/01d1ba106c9e02a2e7d41e07be49031a0ff0ecaa
- https://git.kernel.org/stable/c/411f7d4f7038200cdf6d4f71ee31026ebf2dfedb
- https://git.kernel.org/stable/c/68f27f7c7708183e7873c585ded2f1b057ac5b97
- https://git.kernel.org/stable/c/9c534dbfd1726502abcf0bd393a04214f62c050b
- https://git.kernel.org/stable/c/cc336b242ea7e7a09b3ab9f885341455ca0a3bdb
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: qcom: q6apm-lpass-dais: Fix NULL pointer dereference if source graph failed\n\nIf earlier opening of source graph fails (e.g. ADSP rejects due to\nincorrect audioreach topology), the graph is closed and\n\"dai_data->graph[dai->id]\" is assigned NULL. Preparing the DAI for sink\ngraph continues though and next call to q6apm_lpass_dai_prepare()\nreceives dai_data->graph[dai->id]=NULL leading to NULL pointer\nexception:\n\n qcom-apm gprsvc:service:2:1: Error (1) Processing 0x01001002 cmd\n qcom-apm gprsvc:service:2:1: DSP returned error[1001002] 1\n q6apm-lpass-dais 30000000.remoteproc:glink-edge:gpr:service@1:bedais: fail to start APM port 78\n 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\n Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a8\n ...\n Call trace:\n q6apm_graph_media_format_pcm+0x48/0x120 (P)\n q6apm_lpass_dai_prepare+0x110/0x1b4\n snd_soc_pcm_dai_prepare+0x74/0x108\n __soc_pcm_prepare+0x44/0x160\n dpcm_be_dai_prepare+0x124/0x1c0"
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"lastModified": "2026-06-17T09:18:52.373",
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