powerpc-utils/powerpc-utils-f2a4619ef6be747f53e5f631f8b23b5edb9bb023.patch
2023-11-28 10:00:36 +01:00

48 lines
1.6 KiB
Diff

commit f2a4619ef6be747f53e5f631f8b23b5edb9bb023
Author: Laurent Dufour <ldufour@linux.ibm.com>
Date: Fri Sep 16 18:39:14 2022 +0200
drmgr: prevent file descriptor to be inherited when execing a child
When a file descriptor is opened and remain opened, the O_CLOEXEC should be
set so execed children are not inheriting it.
There is no need for file descriptor opened and closed immediately, like in
probe_cpu().
Reviewed-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
diff --git a/src/drmgr/common.c b/src/drmgr/common.c
index 393a997..622cfaf 100644
--- a/src/drmgr/common.c
+++ b/src/drmgr/common.c
@@ -174,7 +174,7 @@ inline int dr_init(void)
}
- log_fd = open(DR_LOG_PATH, O_RDWR | O_CREAT | O_APPEND,
+ log_fd = open(DR_LOG_PATH, O_RDWR | O_CREAT | O_APPEND | O_CLOEXEC,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if (log_fd == -1) {
log_fd = 0;
@@ -314,7 +314,7 @@ int dr_lock(void)
mode_t old_mode;
old_mode = umask(0);
- dr_lock_fd = open(DR_LOCK_FILE, O_RDWR | O_CREAT,
+ dr_lock_fd = open(DR_LOCK_FILE, O_RDWR | O_CREAT | O_CLOEXEC,
S_IRUSR | S_IRGRP | S_IROTH);
if (dr_lock_fd < 0)
return -1;
@@ -1496,7 +1496,7 @@ int do_kernel_dlpar_common(const char *cmd, int cmdlen, int silent_error)
/* write to file */
if (fd == -1) {
- fd = open(SYSFS_DLPAR_FILE, O_WRONLY);
+ fd = open(SYSFS_DLPAR_FILE, O_WRONLY | O_CLOEXEC);
if (fd < 0) {
say(ERROR,
"Could not open %s to initiate DLPAR request\n",