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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-06-29 13:40:24 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-07-21 16:51:37 +0300
commitc453db6cd96418c79702eaf38259002755ab23ff (patch)
treec8c06a287ae9a33d7cdb6d3c14d933cc25e0e0eb /arch/nds32
parentebea6761b620d758ed77d2df70fab1ae7a363151 (diff)
downloadlinux-c453db6cd96418c79702eaf38259002755ab23ff.tar.xz
nds32: fix up stack guard gap
Commit 1be7107fbe18 ("mm: larger stack guard gap, between vmas") fixed up all architectures to deal with the stack guard gap. But when nds32 was added to the tree, it forgot to do the same thing. Resolve this by properly fixing up the nsd32's version of arch_get_unmapped_area() Cc: Nick Hu <nickhu@andestech.com> Cc: Greentime Hu <green.hu@gmail.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Hugh Dickins <hughd@google.com> Cc: Qiang Liu <cyruscyliu@gmail.com> Cc: stable <stable@vger.kernel.org> Reported-by: iLifetruth <yixiaonn@gmail.com> Acked-by: Hugh Dickins <hughd@google.com> Link: https://lore.kernel.org/r/20210629104024.2293615-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/nds32')
-rw-r--r--arch/nds32/mm/mmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/nds32/mm/mmap.c b/arch/nds32/mm/mmap.c
index c206b31ce07a..1bdf5e7d1b43 100644
--- a/arch/nds32/mm/mmap.c
+++ b/arch/nds32/mm/mmap.c
@@ -59,7 +59,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
vma = find_vma(mm, addr);
if (TASK_SIZE - len >= addr &&
- (!vma || addr + len <= vma->vm_start))
+ (!vma || addr + len <= vm_start_gap(vma)))
return addr;
}