This is a note to let you know that I've just added the patch titled affs: initialize fsdata in affs_truncate() to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: affs-initialize-fsdata-in-affs_truncate.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit b60e8040ac7ceb2c78271552429dcf9ecbef8953 Author: Alexander Potapenko <glider@xxxxxxxxxx> Date: Tue Jan 10 13:49:30 2023 +0100 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@xxxxxxxxxx> Signed-off-by: Alexander Potapenko <glider@xxxxxxxxxx> Reviewed-by: David Sterba <dsterba@xxxxxxxx> Signed-off-by: David Sterba <dsterba@xxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/fs/affs/file.c b/fs/affs/file.c index cefa222f7881..8daeed31e1af 100644 --- a/fs/affs/file.c +++ b/fs/affs/file.c @@ -880,7 +880,7 @@ 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;