The patch titled
Subject: __send_signal: pass q->info, not info, to userns_fixup_signal_uid (v2)
has been added to the -mm tree. Its filename is
user-namespace-make-signalc-respect-user-namespaces-v5-fix.patch
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------------------------------------------------------
From: Serge Hallyn <serge.hallyn@xxxxxxxxxxxxx>
Subject: __send_signal: pass q->info, not info, to userns_fixup_signal_uid (v2)
Eric Biederman pointed out that passing info is a bug and could lead to a
NULL pointer deref to boot.
A collection of signal, securebits, filecaps, cap_bounds, and a few other
ltp tests passed with this kernel.
Changelog:
Nov 18: previous patch missed a leading '&'
Signed-off-by: Serge Hallyn <serge.hallyn@xxxxxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/signal.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN kernel/signal.c~user-namespace-make-signalc-respect-user-namespaces-v5-fix kernel/signal.c
--- a/kernel/signal.c~user-namespace-make-signalc-respect-user-namespaces-v5-fix
+++ a/kernel/signal.c
@@ -1118,7 +1118,7 @@ static int __send_signal(int sig, struct
break;
}
- userns_fixup_signal_uid(info, t);
+ userns_fixup_signal_uid(&q->info, t);
} else if (!is_si_special(info)) {
if (sig >= SIGRTMIN && info->si_code != SI_USER) {
_
Subject: Subject: __send_signal: pass q->info, not info, to userns_fixup_signal_uid (v2)
Patches currently in -mm which might be from serge.hallyn@xxxxxxxxxxxxx are
user-namespace-make-signalc-respect-user-namespaces-v5.patch
user-namespace-make-signalc-respect-user-namespaces-v5-fix.patch
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