{"id":"CVE-2026-31436","summary":"dmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc()\n\nAt the end of this function, d is the traversal cursor of flist, but the\ncode completes found instead. This can lead to issues such as NULL pointer\ndereferences, double completion, or descriptor leaks.\n\nFix this by completing d instead of found in the final\nlist_for_each_entry_safe() loop.","modified":"2026-05-21T03:54:16.056215655Z","published":"2026-04-22T13:53:35.693Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31436.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0e4f43779d550e559be13a5cdb763bad92c4cc99"},{"type":"WEB","url":"https://git.kernel.org/stable/c/82656e8daf8de00935ae91b91bed43f4d6e0d644"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e1c9866173c5f8521f2d0768547a01508cb9ff27"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e21da2ad8844585040fe4b82be1ad2fe99d40074"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31436.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31436"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"aa8d18becc0c14aa3eb46d6d1b81450446e11b87"},{"fixed":"e21da2ad8844585040fe4b82be1ad2fe99d40074"},{"fixed":"82656e8daf8de00935ae91b91bed43f4d6e0d644"},{"fixed":"0e4f43779d550e559be13a5cdb763bad92c4cc99"},{"fixed":"e1c9866173c5f8521f2d0768547a01508cb9ff27"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31436.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"6.12.80"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.21"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.11"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31436.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}