diff options
| author | Andrew Morton | 2023-02-26 12:31:11 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-03-10 09:34:09 +0100 |
| commit | fa7e18233f4f253e6bc6fefdbe296683a6a5b0ed (patch) | |
| tree | 916f6fa3e1959fdb9f9b5e322a6065de319adf6a /fs | |
| parent | 85cdc9d2c8650c99d76b5ea758c0aee36863916e (diff) | |
fs/cramfs/inode.c: initialize file_ra_state
commit 3e35102666f873a135d31a726ac1ec8af4905206 upstream.
file_ra_state_init() assumes that the file_ra_state has been zeroed out.
Fixes a KMSAN used-unintialized issue (at least).
Fixes: cf948cbc35e80 ("cramfs: read_mapping_page() is synchronous")
Reported-by: syzbot <syzbot+8ce7f8308d91e6b8bbe2@syzkaller.appspotmail.com>
Link: https://lkml.kernel.org/r/0000000000008f74e905f56df987@google.com
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cramfs/inode.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 61ccf7722fc3..6dae27d6f553 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -183,7 +183,7 @@ static void *cramfs_blkdev_read(struct super_block *sb, unsigned int offset, unsigned int len) { struct address_space *mapping = sb->s_bdev->bd_inode->i_mapping; - struct file_ra_state ra; + struct file_ra_state ra = {}; struct page *pages[BLKS_PER_BUF]; unsigned i, blocknr, buffer; unsigned long devsize; |