From: Namjae Jeon <namjae.j...@samsung.com>
In case f2fs_iget_nowait returns error, it results in truncate_hole being
called with 'error' value as inode pointer. There is no check in truncate_hole
for valid inode, so it could result in crash due "invalid access to memory".
Avoid this by handling error condition properly.
Signed-off-by: Namjae Jeon <namjae.j...@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahra...@samsung.com>
---
fs/f2fs/recovery.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index b07e9b6..632e679 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -228,6 +228,9 @@ static void check_index_in_prev_nodes(struct f2fs_sb_info
*sbi,
/* Deallocate previous index in the node page */
inode = f2fs_iget_nowait(sbi->sb, ino);
+ if (IS_ERR(inode))
+ return;
+
truncate_hole(inode, bidx, bidx + 1);
iput(inode);
}
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
