{"id":"CVE-2024-50090","summary":"drm/xe/oa: Fix overflow in oa batch buffer","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/oa: Fix overflow in oa batch buffer\n\nBy default xe_bb_create_job() appends a MI_BATCH_BUFFER_END to batch\nbuffer, this is not a problem if batch buffer is only used once but\noa reuses the batch buffer for the same metric and at each call\nit appends a MI_BATCH_BUFFER_END, printing the warning below and then\noverflowing.\n\n[  381.072016] ------------[ cut here ]------------\n[  381.072019] xe 0000:00:02.0: [drm] Assertion `bb-\u003elen * 4 + bb_prefetch(q-\u003egt) \u003c= size` failed!\n               platform: LUNARLAKE subplatform: 1\n               graphics: Xe2_LPG / Xe2_HPG 20.04 step B0\n               media: Xe2_LPM / Xe2_HPM 20.00 step B0\n               tile: 0 VRAM 0 B\n               GT: 0 type 1\n\nSo here checking if batch buffer already have MI_BATCH_BUFFER_END if\nnot append it.\n\nv2:\n- simply fix, suggestion from Ashutosh\n\n(cherry picked from commit 9ba0e0f30ca42a98af3689460063edfb6315718a)","modified":"2026-03-20T12:39:34.740645Z","published":"2024-11-05T17:04:54.546Z","related":["USN-7276-1","USN-7277-1","openSUSE-SU-2024:14500-1","openSUSE-SU-2025:14705-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50090.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/6c10ba06bb1b48acce6d4d9c1e33beb9954f1788"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bcb5be3421705e682b0b32073ad627056d6bc2a2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50090.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-50090"},{"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":"dd08ebf6c3525a7ea2186e636df064ea47281987"},{"fixed":"bcb5be3421705e682b0b32073ad627056d6bc2a2"},{"fixed":"6c10ba06bb1b48acce6d4d9c1e33beb9954f1788"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50090.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}