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| author | Alexander Potapenko <glider@google.com> | 2022-11-21 12:21:32 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-11 16:40:09 +0100 |
| commit | 6be349d7388f3af7957dc6c7e241dc92a969fb38 (patch) | |
| tree | ef88c782caf35b373660ecc846dbe87924321749 /fs/f2fs | |
| parent | 33909b1a646d1f31d631ff4a77a7303317e4a82b (diff) | |
| download | linux-stable-6be349d7388f3af7957dc6c7e241dc92a969fb38.tar.gz linux-stable-6be349d7388f3af7957dc6c7e241dc92a969fb38.tar.bz2 linux-stable-6be349d7388f3af7957dc6c7e241dc92a969fb38.zip | |
fs: f2fs: initialize fsdata in pagecache_write()
[ Upstream commit b1b9896718bc1a212dc288ad66a5fa2fef11353d ]
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@kernel.org>
Fixes: 95ae251fe828 ("f2fs: add fs-verity support")
Signed-off-by: Alexander Potapenko <glider@google.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/verity.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/f2fs/verity.c b/fs/f2fs/verity.c index dafdb19ec0db..cef40d92268f 100644 --- a/fs/f2fs/verity.c +++ b/fs/f2fs/verity.c @@ -78,7 +78,7 @@ 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 = pagecache_write_begin(NULL, inode->i_mapping, pos, n, 0, |