CVE-2026-68209
CVE CVE-2026-68209EUVD EUVD-2026-55310Published 2026-08-10T12:00:28.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: media: sun4i-csi: 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. sun4i_csi_start_streaming() returned -EINVAL when no matching CSI format could be found, before any setup (scratch buffer allocation, pipeline start) had been performed. The remaining error paths already converge on the err_clear_dma_queue label, which calls return_all_buffers(..., VB2_BUF_STATE_QUEUED) under csi->qlock. Jump to that label directly: the intermediate err_disable_device / err_disable_pipeline / err_free_scratch_buffer 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").
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 577bbf23b758848f0c4a50d346460b690c753024 <668face37fdb6b6900645dc8777195498541c9a7; 577bbf23b758848f0c4a50d346460b690c753024 <a8abecc638a7feb20b78fabd563b05e30c071331; patch: 0; patch: 6.6.148; 577bbf23b758848f0c4a50d346460b690c753024 <bbba3e260a62810a717b4442a3bb96d0ec0f6309; patch: 7.1.6; 577bbf23b758848f0c4a50d346460b690c753024 <b5184b3f0e9d4cc47059ba1138c9a73d43d2493f; patch: 6.18.42; patch: 7.2-rc1; 5.4; patch: 6.12.101; 577bbf23b758848f0c4a50d346460b690c753024 <4872161e6fbe4e1783daea8bff79caddfae0fb82
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
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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