{"id":"CVE-2026-90405","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: stm32: dcmi: fix some error handling bugs in probe()\n\nThere are a few issues here:\n\n1) After we assign:\n        chan = dma_request_chan(&pdev->dev, \"tx\");\n   The…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: stm32: dcmi: fix some error handling bugs in probe()\n\nThere are a few issues here:\n\n1) After we assign:\n        chan = dma_request_chan(&pdev->dev, \"tx\");\n   The…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= bc901885fae0a0273288666609d143e960b6ad3a < 4d030d7d1af95d24d3eb6e536a4f09b7bf9a8659","Linux >= bc901885fae0a0273288666609d143e960b6ad3a < f1d1ed39ced825615aeac61f0b6a322178756632","Linux 7.1"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:40.357","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90405","references":[{"url":"https://git.kernel.org/stable/c/4d030d7d1af95d24d3eb6e536a4f09b7bf9a8659","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f1d1ed39ced825615aeac61f0b6a322178756632","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90405.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-90405"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536203"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90405"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90405"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90405.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-17T16:21:47.799Z","epss":0.00198,"epssPercentile":0.09428,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-476"],"slug":"CVE-2026-90405","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmedia: stm32: dcmi: fix some error handling bugs in probe()\n\nThere are a few issues here:\n\n1) After we assign:\n        chan = dma_request_chan(&pdev->dev, \"tx\");\n   Then the error paths need to clean up before returning.  The first\n   error path does a direct return.\n2) The error paths check \"dcmi->mdma_chan\" but that is not assigned\n   until later so it results in memory leaks.  Test \"mdma_chan\"\n   instead.\n3) The error handling calls dma_release_channel(dcmi->dma_chan) before\n   \"dcmi->dma_chan\" has been assigned which leads to a NULL pointer\n   dereference.  Use the \"chan\" variable instead.\n\nI also moved the call to dma_release_channel() after the call to\ndma_release_channel() so it mirrors the allocation code better.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90405.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":225603,"id":"CVE-2026-90405","ts":1792498313158,"field":"cvss","old":null,"new":"5.5"},{"seq":225602,"id":"CVE-2026-90405","ts":1792498313158,"field":"severity","old":"none","new":"medium"}]}