diff options
Diffstat (limited to 'sys/kern/kern_exec.c')
| -rw-r--r-- | sys/kern/kern_exec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c index 9e0a18f..c7df555 100644 --- a/sys/kern/kern_exec.c +++ b/sys/kern/kern_exec.c @@ -155,13 +155,11 @@ execve(td, uap) * that might allow a local user to illicitly obtain elevated * privileges. */ - mtx_lock(&Giant); PROC_LOCK(p); KASSERT((p->p_flag & P_INEXEC) == 0, ("%s(): process already has P_INEXEC flag", __func__)); if ((p->p_flag & P_KSES) && thread_single(SNGLE_EXIT)) { PROC_UNLOCK(p); - mtx_unlock(&Giant); return (ERESTART); /* Try again later. */ } /* If we get here all other threads are dead. */ @@ -194,6 +192,7 @@ execve(td, uap) imgp->stringbase = (char *)kmem_alloc_wait(exec_map, ARG_MAX + PAGE_SIZE); if (imgp->stringbase == NULL) { error = ENOMEM; + mtx_lock(&Giant); goto exec_fail; } imgp->stringp = imgp->stringbase; @@ -208,6 +207,7 @@ execve(td, uap) NDINIT(ndp, LOOKUP, LOCKLEAF | FOLLOW | SAVENAME, UIO_USERSPACE, uap->fname, td); + mtx_lock(&Giant); interpret: error = namei(ndp); |
