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kernel: add missing PTRCHECK to sys_readline; fixes #250

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K. Lange 2022-08-17 08:49:12 +09:00
parent 95e9d0943d
commit fff099c598
1 changed files with 1 additions and 0 deletions
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kernel/sys/syscall.c
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@ -303,6 +303,7 @@ long sys_symlink(char * target, char * name) {
long sys_readlink(const char * file, char * ptr, long len) {
PTR_VALIDATE(file);
PTRCHECK(ptr,len,0);
if (!file) return -EFAULT;
fs_node_t * node = kopen((char *) file, O_PATH | O_NOFOLLOW);
if (!node) {