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Date: Mon, 21 Nov 2022 12:21:34 +0100 From: Alexander Potapenko <glider@...gle.com> To: glider@...gle.com Cc: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org, tytso@....edu, adilger.kernel@...ger.ca, jaegeuk@...nel.org, chao@...nel.org, linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net, Eric Biggers <ebiggers@...nel.org> Subject: [PATCH 5/5] fs: hfsplus: initialize fsdata in hfsplus_file_truncate() 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: Eric Biggers <ebiggers@...nel.org> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Alexander Potapenko <glider@...gle.com> --- fs/hfsplus/extents.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c index 721f779b4ec3e..7a542f3dbe502 100644 --- a/fs/hfsplus/extents.c +++ b/fs/hfsplus/extents.c @@ -554,7 +554,7 @@ void hfsplus_file_truncate(struct inode *inode) if (inode->i_size > hip->phys_size) { struct address_space *mapping = inode->i_mapping; struct page *page; - void *fsdata; + void *fsdata = NULL; loff_t size = inode->i_size; res = hfsplus_write_begin(NULL, mapping, size, 0, -- 2.38.1.584.g0f3c55d4c2-goog
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