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authorIngo Molnar <mingo@kernel.org>2018-11-04 01:42:16 +0300
committerIngo Molnar <mingo@kernel.org>2018-11-04 01:42:16 +0300
commit23a12ddee1ce28065b71f14ccc695b5a0c8a64ff (patch)
treecedaa1cde5b2557116e523c31552187804704093 /mm/gup_benchmark.c
parent98f76206b33504b934209d16196477dfa519a807 (diff)
parentbcb6fb5da77c2a228adf07cc9cb1a0c2aa2001c6 (diff)
downloadlinux-23a12ddee1ce28065b71f14ccc695b5a0c8a64ff.tar.xz
Merge branch 'core/urgent' into x86/urgent, to pick up objtool fix
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/gup_benchmark.c')
-rw-r--r--mm/gup_benchmark.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/gup_benchmark.c b/mm/gup_benchmark.c
index debf11388a60..5b42d3d4b60a 100644
--- a/mm/gup_benchmark.c
+++ b/mm/gup_benchmark.c
@@ -27,6 +27,9 @@ static int __gup_benchmark_ioctl(unsigned int cmd,
int nr;
struct page **pages;
+ if (gup->size > ULONG_MAX)
+ return -EINVAL;
+
nr_pages = gup->size / PAGE_SIZE;
pages = kvcalloc(nr_pages, sizeof(void *), GFP_KERNEL);
if (!pages)