CVE-2026-68216

CVE CVE-2026-68216EUVD EUVD-2026-55317Published 2026-08-10T12:00:35.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: media: pwc: Return queued buffers on start_streaming() failure The vb2 framework hands buffers to the driver via buf_queue() before calling start_streaming(). If start_streaming() returns an error without first returning those buffers via vb2_buffer_done(), vb2_start_streaming() fires WARN_ON(owned_by_drv_count) and the queued buffers leak. pwc's start_streaming() had two early returns that hit this trap: -ENODEV when the USB device was already disconnected, and -ERESTARTSYS when mutex_lock_interruptible() was interrupted by a signal. Call the existing pwc_cleanup_queued_bufs() helper with VB2_BUF_STATE_QUEUED before returning (matching the state already used by the pwc_isoc_init() error path in the same function). This mirrors the uvcvideo fix in commit 4cf3b6fd54eb ("media: uvcvideo: Return queued buffers on start_streaming() failure").

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 6.12.101; patch: 6.6.148; ceede9fa8939e40ad0ddb4ad1355f45c6f1d3478 <5d7cc2634c3843a1414a0f6407aa17f1f91dee60; ceede9fa8939e40ad0ddb4ad1355f45c6f1d3478 <cb16b79a2be2cec9c3ebe4147490817c4d8b1de3; ceede9fa8939e40ad0ddb4ad1355f45c6f1d3478 <f2f9fcacd81953dde6cb86312ab13ca13e689664; patch: 6.18.42; 3.5; ceede9fa8939e40ad0ddb4ad1355f45c6f1d3478 <975b2ee20e569d47821e4f6c9761b4664d48a6a4; ceede9fa8939e40ad0ddb4ad1355f45c6f1d3478 <a4f8f629983f643333e49df90557805469bcbb25; patch: 7.2-rc1; patch: 7.1.6; patch: 0

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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