[PATCH AUTOSEL 6.11 227/244] tools/hv: Add memory allocation check in hv_fcopy_start

Sasha Levin
2024-09-25T11:53:03Z

From: Zhu Jun <zhujun2@cmss.chinamobile.com>

[ Upstream commit 94e86b174d103d941b4afc4f016af8af9e5352fa ]

Added error handling for memory allocation failures
of file_name and path_name.

Signed-off-by: Zhu Jun <zhujun2@cmss.chinamobile.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Tested-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Link: https://lore.kernel.org/r/20240906091333.11419-1-zhujun2@cmss.chinamobile.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20240906091333.11419-1-zhujun2@cmss.chinamobile.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/hv/hv_fcopy_uio_daemon.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/tools/hv/hv_fcopy_uio_daemon.c b/tools/hv/hv_fcopy_uio_daemon.c
index 3ce316cc9f970..7a00f3066a980 100644
--- a/tools/hv/hv_fcopy_uio_daemon.c
+++ b/tools/hv/hv_fcopy_uio_daemon.c
@@ -296,6 +296,13 @@ static int hv_fcopy_start(struct hv_start_fcopy *smsg_in)
file_name = (char *)malloc(file_size * sizeof(char));
path_name = (char *)malloc(path_size * sizeof(char));

+ if (!file_name || !path_name) {
+ free(file_name);
+ free(path_name);
+ syslog(LOG_ERR, "Can't allocate memory for file name and/or path name");
+ return HV_E_FAIL;
+ }
+
wcstoutf8(file_name, (__u16 *)in_file_name, file_size);
wcstoutf8(path_name, (__u16 *)in_path_name, path_size);

--
2.43.0