{"id":"CVE-2026-68211","revision":"f6398a34734b4fb0b925dd990fa6087b","records":[{"revision":"f6398a34734b4fb0b925dd990fa6087b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-68211","aliases":[],"title":"media: stm32-dcmipp: Return queued buffers on start_streaming() failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: stm32-dcmipp: Return queued buffers on start_streaming() failure\n\nThe vb2 framework hands buffers to the driver via buf_queue() before\ncalling start_streaming().  If start_streaming() returns an error\nwithout first returning those buffers via vb2_buffer_done(),\nvb2_start_streaming() fires WARN_ON(owned_by_drv_count) and the queued\nbuffers leak.\n\ndcmipp_bytecap_start_streaming() returned -EINVAL when the source\nsubdevice could not be resolved from the media graph, before\npm_runtime_resume_and_get() and media_pipeline_start() had been called.\nThe remaining error paths already converge on the err_buffer_done\nlabel, which calls dcmipp_bytecap_all_buffers_done(...,\nVB2_BUF_STATE_QUEUED).  Jump to that label directly: the intermediate\nerr_pm_put / err_media_pipeline_stop labels are skipped, which is\ncorrect because nothing they would undo has happened yet.\n\nThis mirrors the uvcvideo fix in commit 4cf3b6fd54eb (\"media: uvcvideo:\nReturn queued buffers on start_streaming() failure\").","state":0,"publishedAt":"2026-08-10T12:00:30.502+00:00","modifiedAt":"2026-10-21T12:43:33.155+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"28e0f37722965fa150af31d82101c95fd21aef60\",\n                            \"lessThan\": \"c1800238a60b0584b1924f11ce38ec8aba533238\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"28e0f37722965fa150af31d82101c95fd21aef60\",\n                            \"lessThan\": \"ed342a86bb2f9c1b44a0fc4f6b08c14073946e4f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"28e0f37722965fa150af31d82101c95fd21aef60\",\n                            \"lessThan\": \"624af2d4b5e9d3dd366538e4fb4a2a037792a7e3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"28e0f37722965fa150af31d82101c95fd21aef60\",\n                            \"lessThan\": \"ffc8eec06378a340d708c889184ab3e14b57d540\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.8\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.8\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.114\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.42\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.6\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/c1800238a60b0584b1924f11ce38ec8aba533238","https://git.kernel.org/stable/c/ed342a86bb2f9c1b44a0fc4f6b08c14073946e4f","https://git.kernel.org/stable/c/624af2d4b5e9d3dd366538e4fb4a2a037792a7e3","https://git.kernel.org/stable/c/ffc8eec06378a340d708c889184ab3e14b57d540"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68211","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-68211","identifiers":["CVE-2026-68211"]},"retained":false,"historicalAffected":[]}],"coverage":[]}