Hello! This is an experimental automated report about issues detected by Coverity from a scan of next-20191108 as part of the linux-next weekly scan project: https://scan.coverity.com/projects/linux-next-weekly-scan You're getting this email because you were associated with the identified lines of code (noted below) that were touched by recent commits: c264644545d2 ("drm/amd/display: Add DMUB support to DC") Coverity reported the following: *** CID 1487839: Memory - corruptions (OVERRUN) /drivers/gpu/drm/amd/display/dc/dc_helper.c: 76 in submit_dmub_burst_write() 70 cmd_buf->header.payload_bytes = 71 sizeof(uint32_t) * offload->reg_seq_count; 72 73 gather = ctx->dmub_srv->reg_helper_offload.gather_in_progress; 74 ctx->dmub_srv->reg_helper_offload.gather_in_progress = false; 75 vvv CID 1487839: Memory - corruptions (OVERRUN) vvv Overrunning struct type dmub_cmd_header of 4 bytes by passing it to a function which accesses it at byte offset 63. 76 dc_dmub_srv_cmd_queue(ctx->dmub_srv, &cmd_buf->header); 77 78 ctx->dmub_srv->reg_helper_offload.gather_in_progress = gather; 79 80 memset(cmd_buf, 0, sizeof(*cmd_buf)); 81 If this is a false positive, please let us know so we can mark it as such, or teach the Coverity rules to be smarter. If not, please make sure fixes get into linux-next. :) For patches fixing this, please include these lines (but double-check the "Fixes" first): Reported-by: coverity-bot <keescook+coverity-bot@xxxxxxxxxxxx> Addresses-Coverity-ID: 1487839 ("Memory - corruptions") Fixes: c264644545d2 ("drm/amd/display: Add DMUB support to DC") Thanks for your attention! -- Coverity-bot
