[ let's fold in to the original patch. ]
Cc: Huang Jianan <[email protected]>
Signed-off-by: Gao Xiang <[email protected]>
---
fuse/decompress.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fuse/decompress.c b/fuse/decompress.c
index 4b7cf3211319..4a9f8e7995c1 100644
--- a/fuse/decompress.c
+++ b/fuse/decompress.c
@@ -18,8 +18,11 @@ static int z_erofs_shifted_transform(struct
z_erofs_decompress_req *rq)
char *dest = rq->out;
char *src = rq->in + rq->ofs_head;
- memcpy(dest, src, rq->outputsize - rq->ofs_head);
+ if (rq->inputsize != EROFS_BLKSIZ)
+ return -EFSCORRUPTED;
+ DBG_BUGON(rq->outputsize > EROFS_BLKSIZ);
+ memcpy(dest, src, rq->outputsize - rq->ofs_head);
return 0;
}
--
2.24.0
