Commit b1b98967 authored by Alexander Potapenko's avatar Alexander Potapenko Committed by Jaegeuk Kim
Browse files

fs: f2fs: initialize fsdata in pagecache_write() 



When aops->write_begin() does not initialize fsdata, KMSAN may report
an error passing the latter to aops->write_end().

Fix this by unconditionally initializing fsdata.

Suggested-by: default avatarEric Biggers <ebiggers@kernel.org>
Fixes: 95ae251f ("f2fs: add fs-verity support")
Signed-off-by: default avatarAlexander Potapenko <glider@google.com>
Reviewed-by: default avatarEric Biggers <ebiggers@google.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 9b13a866

fs/f2fs/verity.c

+1 −1
Original line number Diff line number Diff line
@@ -81,7 +81,7 @@ static int pagecache_write(struct inode *inode, const void *buf, size_t count, 
		size_t n = min_t(size_t, count,

				 PAGE_SIZE - offset_in_page(pos));

		struct page *page;

		void *fsdata;

		void *fsdata = NULL;

		int res;



		res = aops->write_begin(NULL, mapping, pos, n, &page, &fsdata);