diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/exec.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/exec.c b/fs/exec.c index d7f9e14f8977..48c525115fe4 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -2318,3 +2318,25 @@ int dump_seek(struct file *file, loff_t off) return ret; } EXPORT_SYMBOL(dump_seek); + +#ifdef __ARCH_WANT_KERNEL_EXECVE +int kernel_execve(const char *filename, + const char *const argv[], + const char *const envp[]) +{ + struct pt_regs *p = current_pt_regs(); + int ret; + + ret = do_execve(filename, + (const char __user *const __user *)argv, + (const char __user *const __user *)envp, p); + if (ret < 0) + return ret; + + /* + * We were successful. We won't be returning to our caller, but + * instead to user space by manipulating the kernel stack. + */ + ret_from_kernel_execve(p); +} +#endif |