02e1f69890
There some bugs need to be fixed. bug2127101 Reshape is started with not allowed chunk size patch (super-intel: make freesize not required for chunk size migration) bug2139789 Installation hangs after RAID degradation bug2149292 mdadm: Couldn't open /dev/vda3 for write - not zeroing patch (mdadm/udev: Don't handle change event on raw devices) bug2151209 Can't remove disk when unplugging a disk patch (incremental, manage: do not verify if remove is safe) bug2148945 mdadm --fail /dev/md0 /dev/pmem1s failed patch (Manage: do not check array state when drive is removed) Resolves: rhbz#2127101, rhbz#2139789, rhbz#2149292, rhbz#2151209, rhbz#2148945 Signed-off-by: Xiao Ni <xni@redhat.com>
134 lines
4.5 KiB
Diff
134 lines
4.5 KiB
Diff
From 84d969be8f6d8a345b75f558fad26e4f62a558f6 Mon Sep 17 00:00:00 2001
|
|
From: Kinga Tanska <kinga.tanska@intel.com>
|
|
Date: Thu, 14 Jul 2022 09:02:11 +0200
|
|
Subject: [PATCH 30/83] Monitor: use snprintf to fill device name
|
|
|
|
Safe string functions are propagated in Monitor.c.
|
|
|
|
Signed-off-by: Kinga Tanska <kinga.tanska@intel.com>
|
|
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
|
|
---
|
|
Monitor.c | 37 ++++++++++++++-----------------------
|
|
1 file changed, 14 insertions(+), 23 deletions(-)
|
|
|
|
diff --git a/Monitor.c b/Monitor.c
|
|
index a5b11ae2..93f36ac0 100644
|
|
--- a/Monitor.c
|
|
+++ b/Monitor.c
|
|
@@ -33,8 +33,8 @@
|
|
#endif
|
|
|
|
struct state {
|
|
- char *devname;
|
|
- char devnm[32]; /* to sync with mdstat info */
|
|
+ char devname[MD_NAME_MAX + sizeof("/dev/md/")]; /* length of "/dev/md/" + device name + terminating byte*/
|
|
+ char devnm[MD_NAME_MAX]; /* to sync with mdstat info */
|
|
unsigned int utime;
|
|
int err;
|
|
char *spare_group;
|
|
@@ -45,9 +45,9 @@ struct state {
|
|
int devstate[MAX_DISKS];
|
|
dev_t devid[MAX_DISKS];
|
|
int percent;
|
|
- char parent_devnm[32]; /* For subarray, devnm of parent.
|
|
- * For others, ""
|
|
- */
|
|
+ char parent_devnm[MD_NAME_MAX]; /* For subarray, devnm of parent.
|
|
+ * For others, ""
|
|
+ */
|
|
struct supertype *metadata;
|
|
struct state *subarray;/* for a container it is a link to first subarray
|
|
* for a subarray it is a link to next subarray
|
|
@@ -187,15 +187,8 @@ int Monitor(struct mddev_dev *devlist,
|
|
continue;
|
|
|
|
st = xcalloc(1, sizeof *st);
|
|
- if (mdlist->devname[0] == '/')
|
|
- st->devname = xstrdup(mdlist->devname);
|
|
- else {
|
|
- /* length of "/dev/md/" + device name + terminating byte */
|
|
- size_t _len = sizeof("/dev/md/") + strnlen(mdlist->devname, PATH_MAX);
|
|
-
|
|
- st->devname = xcalloc(_len, sizeof(char));
|
|
- snprintf(st->devname, _len, "/dev/md/%s", mdlist->devname);
|
|
- }
|
|
+ snprintf(st->devname, MD_NAME_MAX + sizeof("/dev/md/"),
|
|
+ "/dev/md/%s", basename(mdlist->devname));
|
|
if (!is_mddev(mdlist->devname))
|
|
return 1;
|
|
st->next = statelist;
|
|
@@ -218,7 +211,7 @@ int Monitor(struct mddev_dev *devlist,
|
|
|
|
st = xcalloc(1, sizeof *st);
|
|
mdlist = conf_get_ident(dv->devname);
|
|
- st->devname = xstrdup(dv->devname);
|
|
+ snprintf(st->devname, MD_NAME_MAX + sizeof("/dev/md/"), "%s", dv->devname);
|
|
st->next = statelist;
|
|
st->devnm[0] = 0;
|
|
st->percent = RESYNC_UNKNOWN;
|
|
@@ -301,7 +294,6 @@ int Monitor(struct mddev_dev *devlist,
|
|
for (stp = &statelist; (st = *stp) != NULL; ) {
|
|
if (st->from_auto && st->err > 5) {
|
|
*stp = st->next;
|
|
- free(st->devname);
|
|
free(st->spare_group);
|
|
free(st);
|
|
} else
|
|
@@ -554,7 +546,7 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
|
|
goto disappeared;
|
|
|
|
if (st->devnm[0] == 0)
|
|
- strcpy(st->devnm, fd2devnm(fd));
|
|
+ snprintf(st->devnm, MD_NAME_MAX, "%s", fd2devnm(fd));
|
|
|
|
for (mse2 = mdstat; mse2; mse2 = mse2->next)
|
|
if (strcmp(mse2->devnm, st->devnm) == 0) {
|
|
@@ -684,7 +676,7 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
|
|
strncmp(mse->metadata_version, "external:", 9) == 0 &&
|
|
is_subarray(mse->metadata_version+9)) {
|
|
char *sl;
|
|
- strcpy(st->parent_devnm, mse->metadata_version + 10);
|
|
+ snprintf(st->parent_devnm, MD_NAME_MAX, "%s", mse->metadata_version + 10);
|
|
sl = strchr(st->parent_devnm, '/');
|
|
if (sl)
|
|
*sl = 0;
|
|
@@ -772,14 +764,13 @@ static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist,
|
|
continue;
|
|
}
|
|
|
|
- st->devname = xstrdup(name);
|
|
+ snprintf(st->devname, MD_NAME_MAX + sizeof("/dev/md/"), "%s", name);
|
|
if ((fd = open(st->devname, O_RDONLY)) < 0 ||
|
|
md_get_array_info(fd, &array) < 0) {
|
|
/* no such array */
|
|
if (fd >= 0)
|
|
close(fd);
|
|
put_md_name(st->devname);
|
|
- free(st->devname);
|
|
if (st->metadata) {
|
|
st->metadata->ss->free_super(st->metadata);
|
|
free(st->metadata);
|
|
@@ -791,7 +782,7 @@ static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist,
|
|
st->next = *statelist;
|
|
st->err = 1;
|
|
st->from_auto = 1;
|
|
- strcpy(st->devnm, mse->devnm);
|
|
+ snprintf(st->devnm, MD_NAME_MAX, "%s", mse->devnm);
|
|
st->percent = RESYNC_UNKNOWN;
|
|
st->expected_spares = -1;
|
|
if (mse->metadata_version &&
|
|
@@ -799,8 +790,8 @@ static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist,
|
|
"external:", 9) == 0 &&
|
|
is_subarray(mse->metadata_version+9)) {
|
|
char *sl;
|
|
- strcpy(st->parent_devnm,
|
|
- mse->metadata_version+10);
|
|
+ snprintf(st->parent_devnm, MD_NAME_MAX,
|
|
+ "%s", mse->metadata_version + 10);
|
|
sl = strchr(st->parent_devnm, '/');
|
|
*sl = 0;
|
|
} else
|
|
--
|
|
2.38.1
|
|
|