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-rw-r--r--fs/exec.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/exec.c b/fs/exec.c
index 4f079bd..887c1c9 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -263,7 +263,10 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
if (!vma)
return -ENOMEM;
- down_write(&mm->mmap_sem);
+ if (down_write_killable(&mm->mmap_sem)) {
+ err = -EINTR;
+ goto err_free;
+ }
vma->vm_mm = mm;
/*
@@ -290,6 +293,7 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
return 0;
err:
up_write(&mm->mmap_sem);
+err_free:
bprm->vma = NULL;
kmem_cache_free(vm_area_cachep, vma);
return err;
@@ -696,7 +700,9 @@ int setup_arg_pages(struct linux_binprm *bprm,
bprm->loader -= stack_shift;
bprm->exec -= stack_shift;
- down_write(&mm->mmap_sem);
+ if (down_write_killable(&mm->mmap_sem))
+ return -EINTR;
+
vm_flags = VM_STACK_FLAGS;
/*
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