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| author | Alexander Potapenko <glider@google.com> | 2023-01-10 13:49:30 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-01 08:23:11 +0100 |
| commit | 39ab0fc4984285851048716e7f85ef8b11cabf11 (patch) | |
| tree | 8b09f0f56068ac628dac4a9250df7f79fcd42230 | |
| parent | f6fa12fbb17cdd46d6f981634dd502840df2d3ea (diff) | |
| download | linux-stable-39ab0fc4984285851048716e7f85ef8b11cabf11.tar.gz linux-stable-39ab0fc4984285851048716e7f85ef8b11cabf11.tar.bz2 linux-stable-39ab0fc4984285851048716e7f85ef8b11cabf11.zip | |
affs: initialize fsdata in affs_truncate()
[ Upstream commit eef034ac6690118c88f357b00e2b3239c9d8575d ]
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.
Fixes: f2b6a16eb8f5 ("fs: affs convert to new aops")
Suggested-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Alexander Potapenko <glider@google.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | fs/affs/file.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/affs/file.c b/fs/affs/file.c index d91b0133d95d..c3d89fa1bab7 100644 --- a/fs/affs/file.c +++ b/fs/affs/file.c @@ -879,7 +879,7 @@ affs_truncate(struct inode *inode) if (inode->i_size > AFFS_I(inode)->mmu_private) { struct address_space *mapping = inode->i_mapping; struct page *page; - void *fsdata; + void *fsdata = NULL; loff_t isize = inode->i_size; int res; |