summaryrefslogtreecommitdiff
path: root/fs/cramfs
diff options
context:
space:
mode:
authorAndrew Morton <akpm@linux-foundation.org>2023-02-26 12:31:11 -0800
committerAndrew Morton <akpm@linux-foundation.org>2023-03-02 21:54:23 -0800
commit3e35102666f873a135d31a726ac1ec8af4905206 (patch)
tree5cc7a3e85aa9f517ae57710b438306a7178a38fd /fs/cramfs
parent07db5e247ab5858439b14dd7cc1fe538b9efcf32 (diff)
fs/cramfs/inode.c: initialize file_ra_state
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>
Diffstat (limited to 'fs/cramfs')
-rw-r--r--fs/cramfs/inode.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index e3d168911dbe..006ef68d7ff6 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;