CVE-2026-64402

설명

In the Linux kernel, the following vulnerability has been resolved: coresight: ultrasoc-smb: Fix OOB write in smb_sync_perf_buffer() When the SMB sink is used as a perf AUX sink, smb_update_buffer() calls smb_sync_perf_buffer() to copy hardware trace data into the perf AUX ring buffer pages. It derives pg_idx = head >> PAGE_SHIFT from @head, which is handle->head, and indexes dst_pages[pg_idx]. The pg_idx %= nr_pages normalization is only applied after the first loop iteration. This leaves the initial page index underived from the buffer size, which can result in an out-of-bounds write past...

영향 제품·버전

제품 Linux

영향 버전 Linux >= 06f5c2926aaa0fba7f99678da6ef77cbbbda1441 < 38dbc8db8341ccdf8e1e1a067453d33ad751864b, >= 06f5c2926aaa0fba7f99678da6ef77cbbbda1441 < 4c5a0a946373da99a80398289b28845b5ae40cd1, >= 06f5c2926aaa0fba7f99678da6ef77cbbbda1441 < 661a019ac0413ecec9e5d1dfcc12fbca8e78d5fb, >= 06f5c2926aaa0fba7f99678da6ef77cbbbda1441 < daf6246ab988fc8bdc82ad7c8d0b1c182d11b15f, >= 06f5c2926aaa0fba7f99678da6ef77cbbbda1441 < 98495b5a4d77dd22e106f462b76e1093a55b29a7, >= 6.3

수정 버전 Linux · 수정 버전은 공급사 공식자료 확인 필요

기술 정보

CVSS 벡터 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE 미등록