Re: [syzbot] [PATCH] netfs: Fix a KMSAN uninit-value error in netfs_clear_buffer
From: syzbot
Date: Fri Sep 20 2024 - 20:23:51 EST
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Subject: [PATCH] netfs: Fix a KMSAN uninit-value error in netfs_clear_buffer
Author: marcus.yu.56@xxxxxxxxx
#syz test
Use kzalloc instead of kmalloc in netfs_buffer_append_folio to fix a KMSAN uninit-value error in netfs_clear_buffer
Signed-off-by: Chang Yu <marcus.yu.56@xxxxxxxxx>
---
fs/netfs/misc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/netfs/misc.c b/fs/netfs/misc.c
index 0ad0982ce0e2..6f967b6d30b6 100644
--- a/fs/netfs/misc.c
+++ b/fs/netfs/misc.c
@@ -22,7 +22,7 @@ int netfs_buffer_append_folio(struct netfs_io_request *rreq, struct folio *folio
return -EIO;
if (!tail || folioq_full(tail)) {
- tail = kmalloc(sizeof(*tail), GFP_NOFS);
+ tail = kzalloc(sizeof(*tail), GFP_NOFS);
if (!tail)
return -ENOMEM;
netfs_stat(&netfs_n_folioq);
--
2.46.0