{"id":"CVE-2026-43206","revision":"51a07abd90e74c85b95995964b332ba0","records":[{"revision":"51a07abd90e74c85b95995964b332ba0","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-43206","aliases":[],"title":"drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()\n\nThe kfd_event_page_set() function writes KFD_SIGNAL_EVENT_LIMIT * 8\nbytes via memset without checking the buffer size parameter. This allows\nunprivileged userspace to trigger an out-of bounds kernel memory write\nby passing a small buffer, leading to  potential privilege\nescalation.","state":0,"publishedAt":"2026-05-06T11:28:10.937+00:00","modifiedAt":"2026-10-19T19:16:24.115+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/gpu/drm/amd/amdkfd/kfd_events.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"0fc8011f89feb8b2c3008583b777d097e1974660\",\n                            \"lessThan\": \"3e04bc310d80b46eaf481f1fefcbcb37a187412d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0fc8011f89feb8b2c3008583b777d097e1974660\",\n                            \"lessThan\": \"de8d7a25cd2eb5875b1d8d4fbc7fe4b4138b781f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0fc8011f89feb8b2c3008583b777d097e1974660\",\n                            \"lessThan\": \"b4034442cb090e4a980bdcc1540948606cbc951b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0fc8011f89feb8b2c3008583b777d097e1974660\",\n                            \"lessThan\": \"4857c37c7ba9aa38b9a4c694e8bd8d0091c87940\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0fc8011f89feb8b2c3008583b777d097e1974660\",\n                            \"lessThan\": \"75fb57efdd7863fffbc39db23e9cad7aafda26ed\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0fc8011f89feb8b2c3008583b777d097e1974660\",\n                            \"lessThan\": \"bfcd6b53e1f4feb182952f4ff9a137c36ceaf20b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0fc8011f89feb8b2c3008583b777d097e1974660\",\n                            \"lessThan\": \"4e72f419e4ed44cb3b60506752d8688c20a60a9b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0fc8011f89feb8b2c3008583b777d097e1974660\",\n                            \"lessThan\": \"8a70a26c9f34baea6c3199a9862ddaff4554a96d\",\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/gpu/drm/amd/amdkfd/kfd_events.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.17\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.17\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.252\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.202\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.165\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.128\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.75\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.16\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19.6\",\n                            \"lessThanOrEqual\": \"6.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/3e04bc310d80b46eaf481f1fefcbcb37a187412d","https://git.kernel.org/stable/c/de8d7a25cd2eb5875b1d8d4fbc7fe4b4138b781f","https://git.kernel.org/stable/c/b4034442cb090e4a980bdcc1540948606cbc951b","https://git.kernel.org/stable/c/4857c37c7ba9aa38b9a4c694e8bd8d0091c87940","https://git.kernel.org/stable/c/75fb57efdd7863fffbc39db23e9cad7aafda26ed","https://git.kernel.org/stable/c/bfcd6b53e1f4feb182952f4ff9a137c36ceaf20b","https://git.kernel.org/stable/c/4e72f419e4ed44cb3b60506752d8688c20a60a9b","https://git.kernel.org/stable/c/8a70a26c9f34baea6c3199a9862ddaff4554a96d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43206","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-43206","identifiers":["CVE-2026-43206"]},"retained":false,"historicalAffected":[]}],"coverage":[]}