{"id":"CVE-2026-43400","summary":"drm/amdgpu: add upper bound check on user inputs in signal ioctl","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: add upper bound check on user inputs in signal ioctl\n\nHuge input values in amdgpu_userq_signal_ioctl can lead to a OOM and\ncould be exploited.\n\nSo check these input value against AMDGPU_USERQ_MAX_HANDLES\nwhich is big enough value for genuine use cases and could\npotentially avoid OOM.\n\n(cherry picked from commit be267e15f99bc97cbe202cd556717797cdcf79a5)","modified":"2026-07-15T01:49:07.326989762Z","published":"2026-05-08T14:21:42.225Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43400.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/46630d966b99b0fc6cb01fef4110587f3375a0c0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6fff5204d8aa26b1be50b6427f833bd3e8899c4f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ea78f8c68f4f6211c557df49174c54d167821962"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43400.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43400"},{"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":"a292fdecd72834b3bec380baa5db1e69e7f70679"},{"fixed":"6fff5204d8aa26b1be50b6427f833bd3e8899c4f"},{"fixed":"46630d966b99b0fc6cb01fef4110587f3375a0c0"},{"fixed":"ea78f8c68f4f6211c557df49174c54d167821962"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43400.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.16.0"},{"fixed":"6.18.19"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43400.json"}}],"schema_version":"1.7.5"}