diff options
| -rw-r--r-- | security/selinux/ss/services.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c index ca56cd045bf9..39c317099d8d 100644 --- a/security/selinux/ss/services.c +++ b/security/selinux/ss/services.c @@ -1948,7 +1948,14 @@ static int convert_context(struct context *oldc, struct context *newc, void *p) rc = string_to_context_struct(args->newp, NULL, s, newc, SECSID_NULL); if (rc == -EINVAL) { - /* Retain string representation for later mapping. */ + /* + * Retain string representation for later mapping. + * + * IMPORTANT: We need to copy the contents of oldc->str + * back into s again because string_to_context_struct() + * may have garbled it. + */ + memcpy(s, oldc->str, oldc->len); context_init(newc); newc->str = s; newc->len = oldc->len; |