Re: [syzbot] [v9fs?] KMSAN: uninit-value in p9_client_rpc (2)

From: Edward Adam Davis
Date: Sat Mar 30 2024 - 19:56:30 EST


please test uv p9_client_rpc

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

diff --git a/net/9p/client.c b/net/9p/client.c
index e265a0ca6bdd..30e183b880d5 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -292,6 +292,7 @@ p9_tag_alloc(struct p9_client *c, int8_t type, uint t_size, uint r_size,
if (!req)
return ERR_PTR(-ENOMEM);

+ memset(req, 0, sizeof(req));
if (p9_fcall_init(c, &req->tc, alloc_tsize))
goto free_req;
if (p9_fcall_init(c, &req->rc, alloc_rsize))