CVE-2026-68211media: stm32-dcmipp: Return queued buffers on start_streaming() failure
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: media: stm32-dcmipp: 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. dcmipp_bytecap_start_streaming() returned -EINVAL when the source subdevice could not be resolved from the media graph, before pm_runtime_resume_and_get() and media_pipeline_start() had been called. The remaining error paths already converge on the err_buffer_done label, which calls dcmipp_bytecap_all_buffers_done(..., VB2_BUF_STATE_QUEUED). Jump to that label directly: the intermediate err_pm_put / err_media_pipeline_stop labels are skipped, which is correct because nothing they would undo has happened yet. This mirrors the uvcvideo fix in commit 4cf3b6fd54eb ("media: uvcvideo: Return queued buffers on start_streaming() failure").
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 28e0f37722965fa150af31d82101c95fd21aef60 before ed342a86bb2f9c1b44a0fc4f6b08c14073946e4f; from 28e0f37722965fa150af31d82101c95fd21aef60 before 624af2d4b5e9d3dd366538e4fb4a2a037792a7e3; from 28e0f37722965fa150af31d82101c95fd21aef60 before ffc8eec06378a340d708c889184ab3e14b57d540 | CNA record |
References
- https://git.kernel.org/stable/c/ed342a86bb2f9c1b44a0fc4f6b08c14073946e4f
- https://git.kernel.org/stable/c/624af2d4b5e9d3dd366538e4fb4a2a037792a7e3
- https://git.kernel.org/stable/c/ffc8eec06378a340d708c889184ab3e14b57d540
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.