| 1 | diff --git a/arch/um/os-Linux/user_syms.c b/arch/um/os-Linux/user_syms.c |
| 2 | index 05f5ea8..9e71e7e 100644 |
| 3 | --- a/arch/um/os-Linux/user_syms.c |
| 4 | +++ b/arch/um/os-Linux/user_syms.c |
| 5 | @@ -18,6 +18,9 @@ extern void *memmove(void *, const void *, size_t); |
| 6 | extern void *memset(void *, int, size_t); |
| 7 | extern int printf(const char *, ...); |
| 8 | |
| 9 | +extern int __sprintf_chk(char *str, int flag, size_t strlen, const char *format); |
| 10 | +EXPORT_SYMBOL(__sprintf_chk); |
| 11 | + |
| 12 | /* If it's not defined, the export is included in lib/string.c.*/ |
| 13 | #ifdef __HAVE_ARCH_STRSTR |
| 14 | EXPORT_SYMBOL(strstr); |
| 15 | |
