Hello! This is an experimental automated report about issues detected by Coverity from a scan of next-20191025 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: 79465e0ffeb9 ("drm/dp: Add helper to get post-cursor adjustments") Coverity reported the following: *** CID 1487366: Memory - corruptions (OVERRUN) /drivers/gpu/drm/drm_dp_helper.c: 127 in drm_dp_get_adjust_request_post_cursor() 121 EXPORT_SYMBOL(drm_dp_get_adjust_request_pre_emphasis); 122 123 u8 drm_dp_get_adjust_request_post_cursor(const u8 link_status[DP_LINK_STATUS_SIZE], 124 unsigned int lane) 125 { 126 unsigned int offset = DP_ADJUST_REQUEST_POST_CURSOR2; vvv CID 1487366: Memory - corruptions (OVERRUN) vvv Overrunning buffer pointed to by "link_status" of 6 bytes by passing it to a function which accesses it at byte offset 10 using argument "offset" (which evaluates to 524). 127 u8 value = dp_link_status(link_status, offset); 128 129 return (value >> (lane << 1)) & 0x3; 130 } 131 EXPORT_SYMBOL(drm_dp_get_adjust_request_post_cursor); 132 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: Reported-by: coverity-bot <keescook+coverity-bot@xxxxxxxxxxxx> Addresses-Coverity-ID: 1487366 ("Memory - corruptions") Fixes: 79465e0ffeb9 ("drm/dp: Add helper to get post-cursor adjustments") Thanks for your attention! -- Coverity-bot
