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search_pattern() copies a regex capture into caller-provided buffers without knowing their sizes. Several callers pass fixed-size buffers, including FIELD_BUFF and TASK_COMM_LEN. Pass the destination size to search_pattern(), reject captures that do not fit before copying them, and terminate the output string inside search_pattern(). Link: https://lore.kernel.org/20260629014316.130307-4-chenyichong@uniontech.com Signed-off-by: Yichong Chen <chenyichong@uniontech.com> Cc: Vishal Moola <vishal.moola@gmail.com> Cc: Ye Liu <ye.liu@linux.dev> Cc: Zhen Ni <zhen.ni@easystack.cn> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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