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-rw-r--r--fs/coredump.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/coredump.c b/fs/coredump.c
index e3ad709..0b2528f 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -73,10 +73,15 @@ static int expand_corename(struct core_name *cn, int size)
static int cn_vprintf(struct core_name *cn, const char *fmt, va_list arg)
{
int free, need;
+ va_list arg_copy;
again:
free = cn->size - cn->used;
- need = vsnprintf(cn->corename + cn->used, free, fmt, arg);
+
+ va_copy(arg_copy, arg);
+ need = vsnprintf(cn->corename + cn->used, free, fmt, arg_copy);
+ va_end(arg_copy);
+
if (need < free) {
cn->used += need;
return 0;
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