In the Linux kernel, the following vulnerability has been resolved:
drm/connector: only call HDMI audio helper plugged cb if non-null
On driver remove, sound/soc/codecs/hdmi-codec.c calls the plugged_cb with NULL as the callback function and codec_dev, as seen in its hdmi_remove function.
The HDMI audio helper then happily tries calling said null function pointer, and produces an Oops as a result.
Fix this by only executing the callback if fn is non-null. This means the .plugged_cb and .plugged_cb_dev members still get appropriately cleared.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ubuntu | — | Upgrade linux-image-gcp-6.14Upgrade linux-image-virtual-6.14Upgrade linux-image-6.14.0-1013-awsUpgrade linux-image-realtime-6.14Upgrade linux-image-generic-6.14Upgrade linux-image-raspi-6.14Upgrade linux-image-oem-24.04cUpgrade linux-image-oracle-64kUpgrade linux-image-6.14.0-1016-gcp-64kUpgrade linux-image-oracle-6.14Upgrade linux-image-6.14.0-1012-oemUpgrade linux-image-azureUpgrade linux-image-aws-6.14Upgrade linux-image-6.14.0-1013-aws-64kUpgrade linux-image-6.14.0-1013-oracle-64kUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-generic-64kUpgrade linux-image-6.14.0-1012-azureUpgrade linux-image-gcp-64k-6.14Upgrade linux-image-gcp-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-aws-64k-6.14Upgrade linux-image-raspiUpgrade linux-image-oracle-64k-6.14Upgrade linux-image-oracleUpgrade linux-image-oem-6.14Upgrade linux-image-generic-64k-6.14Upgrade linux-image-6.14.0-1012-realtimeUpgrade linux-image-gcpUpgrade linux-image-genericUpgrade linux-image-virtualUpgrade linux-image-realtimeUpgrade linux-image-6.14.0-1014-raspiUpgrade linux-image-azure-6.14Upgrade linux-image-6.14.0-1013-oracleUpgrade linux-image-awsUpgrade linux-image-oem-24.04aUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-oem-24.04Upgrade linux-image-6.14.0-1016-gcpUpgrade linux-image-6.14.0-32-genericUpgrade linux-image-oem-24.04bUpgrade linux-image-6.14.0-32-generic-64kUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-aws-64k | Jul 7, 2025 | Jul 3, 2025 |
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