Messages in this thread Patch in this message | | | Date | Wed, 1 Sep 2004 16:51:22 +0100 | From | Dave Jones <> | Subject | [PATCH] Check find_vma return code in make_pages_present() |
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It can return NULL, so check for it.
Spotted with the source checker from Coverity.com.
Signed-off-by: Dave Jones <davej@redhat.com>
diff -urpN --exclude-from=/home/davej/.exclude bk-linus/mm/memory.c linux-2.6/mm/memory.c --- bk-linus/mm/memory.c 2004-08-24 00:02:41.000000000 +0100 +++ linux-2.6/mm/memory.c 2004-09-01 13:31:18.000000000 +0100 @@ -1744,6 +1744,8 @@ int make_pages_present(unsigned long add struct vm_area_struct * vma; vma = find_vma(current->mm, addr); + if (!vma) + return -1; write = (vma->vm_flags & VM_WRITE) != 0; if (addr >= end) BUG(); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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