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-rw-r--r--arch/arm64/kernel/signal.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
index 8e6500c9471b..a032906cf4f7 100644
--- a/arch/arm64/kernel/signal.c
+++ b/arch/arm64/kernel/signal.c
@@ -344,6 +344,10 @@ static int parse_user_sigframe(struct user_ctxs *user,
*/
offset = 0;
limit = extra_size;
+
+ if (!access_ok(VERIFY_READ, base, limit))
+ goto invalid;
+
continue;
default: