signal: allow to send any siginfo to itself

[linux-2.6-block.git] / kernel / signal.c

diff --git a/kernel/signal.c b/kernel/signal.c
index 2a7ae296318539952009c04585657a6d69c26f0e..c6209135cca45d1b05778e350c04dd29abff6e6b 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2996,7 +2996,8 @@ static int do_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t *info)
        /* Not even root can pretend to send signals from the kernel.
         * Nor can they impersonate a kill()/tgkill(), which adds source info.
         */
-       if (info->si_code >= 0 || info->si_code == SI_TKILL) {
+       if ((info->si_code >= 0 || info->si_code == SI_TKILL) &&
+           (task_pid_vnr(current) != pid)) {
                /* We used to allow any < 0 si_code */
                WARN_ON_ONCE(info->si_code < 0);
                return -EPERM;
@@ -3045,7 +3046,8 @@ static int do_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, siginfo_t *info)
        /* Not even root can pretend to send signals from the kernel.
         * Nor can they impersonate a kill()/tgkill(), which adds source info.
         */
-       if (info->si_code >= 0 || info->si_code == SI_TKILL) {
+       if (((info->si_code >= 0 || info->si_code == SI_TKILL)) &&
+           (task_pid_vnr(current) != pid)) {
                /* We used to allow any < 0 si_code */
                WARN_ON_ONCE(info->si_code < 0);
                return -EPERM;