CVEvulnerability
CVE-2026-98940
- Status
- Received
- Published
- 2026-10-23
- Last modified
- 2026-10-23
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
ASoC: qcom: lpass-cpu: use DAI table index for playback constraints
The DAI ID is a hardware port ID and is not necessarily the index of
the corresponding entry in variant->dai_driver.
When configuring a DAI with LPAIF_I2SCTL_MODE_QUAD01, the probe code
currently uses dai_id to index variant->dai_driver. This is incorrect
for platforms where DAI IDs are sparse. For example, the IPQ806x MI2S
DAI has ID 4 while it is the only entry in the DAI driver table. If
that DAI is configured for QUAD01 and probe reaches this branch, the
code writes beyond that single entry via dai_driver[4] instead of
updating the DAI being processed.
Use the loop index i when updating the current DAI's playback channel
constraints, while retaining dai_id for indexing the hardware-port
specific playback SD-line mode array.
This fixes the incorrect DAI table access for platforms where the DAI
ID does not match its position in the driver table.
References
- https://git.kernel.org/stable/c/6833f1893ac2ec40016c348779af63debf3700d2 git.kernel.org
- https://git.kernel.org/stable/c/69d2b7a4c115181629eb14d800aecc3e7de3f7fb git.kernel.org
- https://git.kernel.org/stable/c/775df6a27e8433e2414124472938009b958f9a77 git.kernel.org
- https://git.kernel.org/stable/c/ca51771c8efde5df05476ac98dd1b2af4e2b149f git.kernel.org
- https://git.kernel.org/stable/c/f11336e6d3cd9e28e5cdf1cb8a6171e7c3eff4e4 git.kernel.org