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-rw-r--r--fs/proc/proc_sysctl.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 86d32a3..bcf60fb 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -943,10 +943,12 @@ struct ctl_table_header *__register_sysctl_paths(
struct ctl_table *new, **prevp;
unsigned int n, npath;
struct ctl_table_set *set;
+ size_t path_bytes = 0;
+ char *new_name;
/* Count the path components */
for (npath = 0; path[npath].procname; ++npath)
- ;
+ path_bytes += strlen(path[npath].procname) + 1;
/*
* For each path component, allocate a 2-element ctl_table array.
@@ -956,24 +958,27 @@ struct ctl_table_header *__register_sysctl_paths(
* We allocate everything in one go so that we don't have to
* worry about freeing additional memory in unregister_sysctl_table.
*/
- header = kzalloc(sizeof(struct ctl_table_header) +
+ header = kzalloc(sizeof(struct ctl_table_header) + path_bytes +
(2 * npath * sizeof(struct ctl_table)), GFP_KERNEL);
if (!header)
return NULL;
new = (struct ctl_table *) (header + 1);
+ new_name = (char *)(new + (2 * npath));
/* Now connect the dots */
prevp = &header->ctl_table;
for (n = 0; n < npath; ++n, ++path) {
/* Copy the procname */
- new->procname = path->procname;
+ strcpy(new_name, path->procname);
+ new->procname = new_name;
new->mode = 0555;
*prevp = new;
prevp = &new->child;
new += 2;
+ new_name += strlen(new_name) + 1;
}
*prevp = table;
header->ctl_table_arg = table;
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