CVE-2026-74497
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Clamp frame size in implicit-feedback mode snd_usb_handle_sync_urb() scales received sync packet sizes by the sender's stride and stores the result directly in out_packet->packet_size[i]. If a connected USB device sends an oversized sync packet, this frame count can exceed ep->maxframesize. The un-clamped frame count then propagates to the playback endpoint queue, potentially driving packet transfers beyond the endpoint's hardware frame limits. Cap the calculated frame count against ep->maxframesize in snd_usb_handle_sync_urb() to prevent oversized packets from entering the playback queue.
- Affected products
- Linux Kernel
- CVSS 3.1
- 8.4 HIGH
- EPSS
- 0.1% (4th percentile)
- NVD status
- Received
- Published
- 2026-08-15
No indexed exploits for CVE-2026-74497 yet
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