On Fri, 17 Jul 2026 15:02:51 +0800 Hongfu Li <[email protected]> wrote:
> From: Hongfu Li <[email protected]> > > In mremap_dontunmap_partial_mapping_overwrite(), mremap() stores its > returned remapped address into remapped_mapping, while the BUG_ON > incorrectly checks dest_mapping instead. > > If mremap() fails, dest_mapping still holds a valid pointer obtained from > the prior mmap() call, making this BUG_ON never trigger at all. Correct > the check to validate the actual mremap() return value stored in > remapped_mapping. Nice catch. > > Signed-off-by: Hongfu Li <[email protected]> Reviewed-by: SJ Park <[email protected]> Thanks, SJ [...]
