{"id":"CVE-2026-43206","summary":"drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()","details":"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.","modified":"2026-09-15T18:26:44.864383946Z","published":"2026-05-06T11:28:10.937Z","related":["ALSA-2026:55764","ALSA-2026:55765","ALSA-2026:57251","ALSA-2026:57252","SUSE-SU-2026:22108-1","SUSE-SU-2026:22137-1","SUSE-SU-2026:22433-1","SUSE-SU-2026:22458-1","SUSE-SU-2026:23066-1","SUSE-SU-2026:23068-1","SUSE-SU-2026:2310-1","SUSE-SU-2026:23221-1","SUSE-SU-2026:23231-1","SUSE-SU-2026:23237-1","SUSE-SU-2026:23267-1","SUSE-SU-2026:23268-1","SUSE-SU-2026:23269-1","SUSE-SU-2026:23270-1","SUSE-SU-2026:23271-1","SUSE-SU-2026:23272-1","SUSE-SU-2026:23288-1","SUSE-SU-2026:23290-1","SUSE-SU-2026:23291-1","SUSE-SU-2026:23292-1","SUSE-SU-2026:23293-1","SUSE-SU-2026:23296-1","SUSE-SU-2026:2331-1","SUSE-SU-2026:2332-1","SUSE-SU-2026:23337-1","SUSE-SU-2026:23338-1","SUSE-SU-2026:23339-1","SUSE-SU-2026:23340-1","SUSE-SU-2026:23341-1","SUSE-SU-2026:23343-1","SUSE-SU-2026:23368-1","SUSE-SU-2026:23369-1","SUSE-SU-2026:23370-1","SUSE-SU-2026:23371-1","SUSE-SU-2026:23372-1","SUSE-SU-2026:23383-1","SUSE-SU-2026:23384-1","SUSE-SU-2026:23385-1","SUSE-SU-2026:23386-1","SUSE-SU-2026:23387-1","SUSE-SU-2026:23388-1","SUSE-SU-2026:23418-1","SUSE-SU-2026:23419-1","SUSE-SU-2026:23421-1","SUSE-SU-2026:23422-1","SUSE-SU-2026:23423-1","SUSE-SU-2026:23424-1","SUSE-SU-2026:23426-1","SUSE-SU-2026:23427-1","SUSE-SU-2026:23428-1","SUSE-SU-2026:23429-1","SUSE-SU-2026:23430-1","SUSE-SU-2026:23482-1","SUSE-SU-2026:23541-1","SUSE-SU-2026:2383-1","SUSE-SU-2026:2421-1","SUSE-SU-2026:2450-1","SUSE-SU-2026:2482-1","SUSE-SU-2026:2591-1","SUSE-SU-2026:3689-1","SUSE-SU-2026:3697-1","SUSE-SU-2026:3702-1","SUSE-SU-2026:3703-1","SUSE-SU-2026:3704-1","SUSE-SU-2026:3706-1","SUSE-SU-2026:3707-1","SUSE-SU-2026:3708-1","SUSE-SU-2026:3709-1","SUSE-SU-2026:3710-1","SUSE-SU-2026:3715-1","SUSE-SU-2026:3719-1","SUSE-SU-2026:3721-1","SUSE-SU-2026:3722-1","SUSE-SU-2026:3723-1","SUSE-SU-2026:3724-1","SUSE-SU-2026:3726-1","SUSE-SU-2026:3728-1","SUSE-SU-2026:3739-1","SUSE-SU-2026:3740-1","SUSE-SU-2026:3743-1","SUSE-SU-2026:3744-1","SUSE-SU-2026:3747-1","SUSE-SU-2026:3748-1","SUSE-SU-2026:3749-1","SUSE-SU-2026:3750-1","SUSE-SU-2026:3754-1","SUSE-SU-2026:3756-1","SUSE-SU-2026:3759-1","SUSE-SU-2026:3760-1","SUSE-SU-2026:3761-1","SUSE-SU-2026:3766-1","SUSE-SU-2026:3768-1","SUSE-SU-2026:3775-1","SUSE-SU-2026:3826-1","openSUSE-SU-2026:21555-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43206.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3e04bc310d80b46eaf481f1fefcbcb37a187412d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4857c37c7ba9aa38b9a4c694e8bd8d0091c87940"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4e72f419e4ed44cb3b60506752d8688c20a60a9b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/75fb57efdd7863fffbc39db23e9cad7aafda26ed"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8a70a26c9f34baea6c3199a9862ddaff4554a96d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b4034442cb090e4a980bdcc1540948606cbc951b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bfcd6b53e1f4feb182952f4ff9a137c36ceaf20b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/de8d7a25cd2eb5875b1d8d4fbc7fe4b4138b781f"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43206.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43206"},{"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":"0fc8011f89feb8b2c3008583b777d097e1974660"},{"fixed":"3e04bc310d80b46eaf481f1fefcbcb37a187412d"},{"fixed":"de8d7a25cd2eb5875b1d8d4fbc7fe4b4138b781f"},{"fixed":"b4034442cb090e4a980bdcc1540948606cbc951b"},{"fixed":"4857c37c7ba9aa38b9a4c694e8bd8d0091c87940"},{"fixed":"75fb57efdd7863fffbc39db23e9cad7aafda26ed"},{"fixed":"bfcd6b53e1f4feb182952f4ff9a137c36ceaf20b"},{"fixed":"4e72f419e4ed44cb3b60506752d8688c20a60a9b"},{"fixed":"8a70a26c9f34baea6c3199a9862ddaff4554a96d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43206.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.17.0"},{"fixed":"5.10.252"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.202"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.165"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.128"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.75"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43206.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}