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-rw-r--r--arch/sparc/kernel/ds.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c
index 5ef48dab5636..11d460f6f9cc 100644
--- a/arch/sparc/kernel/ds.c
+++ b/arch/sparc/kernel/ds.c
@@ -783,6 +783,16 @@ void ldom_set_var(const char *var, const char *value)
char *base, *p;
int msg_len, loops;
+ if (strlen(var) + strlen(value) + 2 >
+ sizeof(pkt) - sizeof(pkt.header)) {
+ printk(KERN_ERR PFX
+ "contents length: %zu, which more than max: %lu,"
+ "so could not set (%s) variable to (%s).\n",
+ strlen(var) + strlen(value) + 2,
+ sizeof(pkt) - sizeof(pkt.header), var, value);
+ return;
+ }
+
memset(&pkt, 0, sizeof(pkt));
pkt.header.data.tag.type = DS_DATA;
pkt.header.data.handle = cp->handle;

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