{"id":"CVE-2026-56946","aliases":["A-511630906","EUVD-2026-122733","GHSA-4hq3-6wh3-c7gr","PUB-A-511630906"],"status":"published","title":"In smmu_unmap_visit_leaf of arm-smmu-v3.c, there is a possible way to release active direct...","description":"In smmu_unmap_visit_leaf of arm-smmu-v3.c, there is a possible way to release active direct memory access page references during unmapping due to a logic error. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.","epss":{"day":"2026-11-11","score":0.00132,"percentile":0.02796,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-11-01T00:00:00Z","modified":"2026-11-10T21:34:40Z","fixes":[{"ecosystem":"Android","package":":unknown:","fixed_in":["Pixel-family specific:2026-11-05"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":":unknown:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"Pixel-family specific:0"},{"fixed":"Pixel-family specific:2026-11-05"}]}],"versions":["Pixel-family specific"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/docs/security/bulletin/pixel/2026/2026-11-01"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56946"},{"url":"https://github.com/advisories/GHSA-4hq3-6wh3-c7gr"},{"url":"https://source.android.com/security/bulletin/2026-11-01","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-56946","description":"In smmu_unmap_visit_leaf of arm-smmu-v3.c, there is a possible way to release active direct memory access page references during unmapping due to a logic error. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2026-11-10T19:20:50.857Z","modified":"2026-11-10T19:20:50.857Z","updated_at":"2026-11-10T22:18:27.902968Z"}],"euvd":[{"id":"EUVD-2026-122733","description":"In smmu_unmap_visit_leaf of arm-smmu-v3.c, there is a possible way to release active direct memory access page references during unmapping due to a logic error. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2026-11-10T19:20:50Z","modified":"2026-11-10T19:20:50Z","updated_at":"2026-11-11T00:25:05.801158Z"}],"ghsa":[{"id":"GHSA-4hq3-6wh3-c7gr","title":"In smmu_unmap_visit_leaf of arm-smmu-v3.c, there is a possible way to release active direct...","description":"In smmu_unmap_visit_leaf of arm-smmu-v3.c, there is a possible way to release active direct memory access page references during unmapping due to a logic error. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2026-11-10T21:34:33Z","modified":"2026-11-10T21:34:40Z","updated_at":"2026-11-10T21:57:58.545441Z"}],"nvd":[{"id":"CVE-2026-56946","description":"In smmu_unmap_visit_leaf of arm-smmu-v3.c, there is a possible way to release active direct memory access page references during unmapping due to a logic error. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2026-11-10T20:19:16.533Z","modified":"2026-11-10T21:46:38.673Z","updated_at":"2026-11-10T22:21:33.755054Z"}],"osv":[{"id":"PUB-A-511630906","description":"In smmu_unmap_visit_leaf of arm-smmu-v3.c, there is a possible way to release active direct memory access page references during unmapping due to a logic error. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2026-11-01T00:00:00Z","modified":"2026-11-10T17:02:23.040266809Z","updated_at":"2026-11-10T17:35:09.118123Z"}]}}