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 1487852: Memory - corruptions (OVERRUN) /drivers/gpu/drm/amd/display/dc/dc_helper.c: 95 in submit_dmub_reg_wait() 89 struct dmub_rb_cmd_reg_wait *cmd_buf = &offload->cmd_data.reg_wait; 90 bool gather = false; 91 92 gather = ctx->dmub_srv->reg_helper_offload.gather_in_progress; 93 ctx->dmub_srv->reg_helper_offload.gather_in_progress = false; 94 vvv CID 1487852: 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. 95 dc_dmub_srv_cmd_queue(ctx->dmub_srv, &cmd_buf->header); 96 97 memset(cmd_buf, 0, sizeof(*cmd_buf)); 98 offload->reg_seq_count = 0; 99 100 ctx->dmub_srv->reg_helper_offload.gather_in_progress = gather; 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: 1487852 ("Memory - corruptions") Fixes: c264644545d2 ("drm/amd/display: Add DMUB support to DC") Thanks for your attention! -- Coverity-bot
