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authorNamjae Jeon <linkinjeon@kernel.org>2023-09-12 23:29:10 +0900
committerSteve French <stfrench@microsoft.com>2023-09-13 10:21:05 -0500
commit59d8d24f4610333560cf2e8fe3f44cafe30322eb (patch)
tree9b676b09360b8aab99f4faa63eebd775dc023023
parente4e14095cc68a2efefba6f77d95efe1137e751d4 (diff)
downloadlinux-59d8d24f4610333560cf2e8fe3f44cafe30322eb.tar.gz
ksmbd: fix passing freed memory 'aux_payload_buf'
The patch e2b76ab8b5c9: "ksmbd: add support for read compound" leads to the following Smatch static checker warning: fs/smb/server/smb2pdu.c:6329 smb2_read() warn: passing freed memory 'aux_payload_buf' It doesn't matter that we're passing a freed variable because nbytes is zero. This patch set "aux_payload_buf = NULL" to make smatch silence. Fixes: e2b76ab8b5c9 ("ksmbd: add support for read compound") Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
-rw-r--r--fs/smb/server/smb2pdu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index 749660110878fd..544022dd6d2007 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -6312,7 +6312,7 @@ int smb2_read(struct ksmbd_work *work)
aux_payload_buf,
nbytes);
kvfree(aux_payload_buf);
-
+ aux_payload_buf = NULL;
nbytes = 0;
if (remain_bytes < 0) {
err = (int)remain_bytes;