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authorFedor Pchelkin <pchelkin@ispras.ru>2024-02-05 14:19:16 +0300
committerSteve French <stfrench@microsoft.com>2024-02-07 20:23:37 -0600
commit108a020c64434fed4b69762879d78cd24088b4c7 (patch)
treeca8eeb8c43c69504845351f28b64ce7d89c21425 /fs
parenta12bc36032a2f7917068f9ce9eb26d869e54b31a (diff)
ksmbd: free aux buffer if ksmbd_iov_pin_rsp_read fails
ksmbd_iov_pin_rsp_read() doesn't free the provided aux buffer if it fails. Seems to be the caller's responsibility to clear the buffer in error case. Found by Linux Verification Center (linuxtesting.org). Fixes: e2b76ab8b5c9 ("ksmbd: add support for read compound") Cc: stable@vger.kernel.org Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru> Acked-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/smb/server/smb2pdu.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index ba7a72a6a4f4..0c97d3c86072 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -6173,8 +6173,10 @@ static noinline int smb2_read_pipe(struct ksmbd_work *work)
err = ksmbd_iov_pin_rsp_read(work, (void *)rsp,
offsetof(struct smb2_read_rsp, Buffer),
aux_payload_buf, nbytes);
- if (err)
+ if (err) {
+ kvfree(aux_payload_buf);
goto out;
+ }
kvfree(rpc_resp);
} else {
err = ksmbd_iov_pin_rsp(work, (void *)rsp,
@@ -6384,8 +6386,10 @@ int smb2_read(struct ksmbd_work *work)
err = ksmbd_iov_pin_rsp_read(work, (void *)rsp,
offsetof(struct smb2_read_rsp, Buffer),
aux_payload_buf, nbytes);
- if (err)
+ if (err) {
+ kvfree(aux_payload_buf);
goto out;
+ }
ksmbd_fd_put(work, fp);
return 0;