The patch titled
Subject: resource: Use 2-factor allocator calls
has been added to the -mm tree. Its filename is
resource-add-walk_system_ram_res_rev-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/resource-add-walk_system_ram_res_rev-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/resource-add-walk_system_ram_res_rev-fix.patch
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The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Kees Cook <keescook@xxxxxxxxxxxx>
Subject: resource: Use 2-factor allocator calls
As already done treewide, switch from open-coded multiplication to using
2-factor allocation helpers.
Link: http://lkml.kernel.org/r/20180704173153.GA34386@beast
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: AKASHI Takahiro <takahiro.akashi@xxxxxxxxxx>
Cc: Baoquan He <bhe@xxxxxxxxxx>
Cc: Wei Yang <richard.weiyang@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
diff -puN kernel/resource.c~resource-add-walk_system_ram_res_rev-fix kernel/resource.c
--- a/kernel/resource.c~resource-add-walk_system_ram_res_rev-fix
+++ a/kernel/resource.c
@@ -453,7 +453,7 @@ int walk_system_ram_res_rev(u64 start, u
int ret = -1;
/* create a list */
- rams = vmalloc(sizeof(struct resource) * rams_size);
+ rams = vmalloc(array_size(rams_size, sizeof(struct resource)));
if (!rams)
return ret;
@@ -469,8 +469,8 @@ int walk_system_ram_res_rev(u64 start, u
int rams_new_size;
rams_new_size = rams_size + 16;
- rams_new = vmalloc(sizeof(struct resource)
- * rams_new_size);
+ rams_new = vmalloc(array_size(rams_new_size,
+ sizeof(struct resource)));
if (!rams_new)
goto out;
_
Patches currently in -mm which might be from keescook@xxxxxxxxxxxx are
ntfs-aops-remove-vla-usage.patch
ntfs-decompress-remove-vla-usage.patch
ntfs-mft-remove-vla-usage.patch
resource-add-walk_system_ram_res_rev-fix.patch
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