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-rw-r--r--net/9p/client.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/9p/client.c b/net/9p/client.c
index 81925b923318..498454b3c06c 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -1583,6 +1583,10 @@ p9_client_read(struct p9_fid *fid, u64 offset, struct iov_iter *to, int *err)
p9_free_req(clnt, req);
break;
}
+ if (rsize < count) {
+ pr_err("bogus RREAD count (%d > %d)\n", count, rsize);
+ count = rsize;
+ }
p9_debug(P9_DEBUG_9P, "<<< RREAD count %d\n", count);
if (!count) {
@@ -1650,6 +1654,10 @@ p9_client_write(struct p9_fid *fid, u64 offset, struct iov_iter *from, int *err)
p9_free_req(clnt, req);
break;
}
+ if (rsize < count) {
+ pr_err("bogus RWRITE count (%d > %d)\n", count, rsize);
+ count = rsize;
+ }
p9_debug(P9_DEBUG_9P, "<<< RWRITE count %d\n", count);