From 7a9e6acbaefaaecbe4f5e10902fd16c6189d0148 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Mon, 20 Jul 2020 16:52:50 +0800 Subject: [PATCH] f2fs: compress: fix to avoid memory leak on cc->cpages Memory allocated for storing compressed pages' poitner should be released after f2fs_write_compressed_pages(), otherwise it will cause memory leak issue. Signed-off-by: Chao Yu Fixes: 4c8ff7095bef ("f2fs: support data compression") Signed-off-by: Jaegeuk Kim --- fs/f2fs/compress.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c index 69ad6a331830..5d0788953308 100644 --- a/fs/f2fs/compress.c +++ b/fs/f2fs/compress.c @@ -1356,6 +1356,8 @@ int f2fs_write_multi_pages(struct compress_ctx *cc, err = f2fs_write_compressed_pages(cc, submitted, wbc, io_type); cops->destroy_compress_ctx(cc); + kfree(cc->cpages); + cc->cpages = NULL; if (!err) return 0; f2fs_bug_on(F2FS_I_SB(cc->inode), err != -EAGAIN);