diff options
Diffstat (limited to 'sys/kern/kern_exit.c')
| -rw-r--r-- | sys/kern/kern_exit.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c index d2e22e9..d0d487d 100644 --- a/sys/kern/kern_exit.c +++ b/sys/kern/kern_exit.c @@ -570,11 +570,13 @@ abort2(struct thread *td, struct abort2_args *uap) /* Prevent from DoSes from user-space. */ if (uap->nargs < 0 || uap->nargs > 16) goto out; - if (uap->args == NULL) - goto out; - error = copyin(uap->args, uargs, uap->nargs * sizeof(void *)); - if (error != 0) - goto out; + if (uap->nargs > 0) { + if (uap->args == NULL) + goto out; + error = copyin(uap->args, uargs, uap->nargs * sizeof(void *)); + if (error != 0) + goto out; + } /* * Limit size of 'reason' string to 128. Will fit even when * maximal number of arguments was chosen to be logged. @@ -586,7 +588,7 @@ abort2(struct thread *td, struct abort2_args *uap) } else { sbuf_printf(sb, "(null)"); } - if (uap->nargs) { + if (uap->nargs > 0) { sbuf_printf(sb, "("); for (i = 0;i < uap->nargs; i++) sbuf_printf(sb, "%s%p", i == 0 ? "" : ", ", uargs[i]); |
