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forest: fix possible null dref in publish #7353

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forest: fix possible null dref in publish #7353

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2 changes: 1 addition & 1 deletion src/discof/forest/fd_forest.c
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Original file line number Diff line number Diff line change
Expand Up @@ -787,7 +787,7 @@ fd_forest_publish( fd_forest_t * forest, ulong new_root_slot ) {
fd_forest_blk_t * new_root_ele = query( forest, new_root_slot );

# if FD_FOREST_USE_HANDHOLDING
if( FD_UNLIKELY( new_root_ele->slot <= old_root_ele->slot ) ) {
if( FD_UNLIKELY( new_root_ele && new_root_ele->slot <= old_root_ele->slot ) ) {
FD_LOG_WARNING(( "tower sent us a root %lu older than forest root %lu", new_root_ele->slot, old_root_ele->slot ));
return NULL;
}
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