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treewide: Replace kmalloc with kmalloc_obj for non-scalar types

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This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook <kees@kernel.org>
This commit is contained in:
Kees Cook 2026-02-20 23:49:23 -08:00
parent d39a1d7486
commit 69050f8d6d
8016 changed files with 20055 additions and 20913 deletions
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4
kernel/unwind/deferred.c
View file

@ -120,8 +120,8 @@ int unwind_user_faultable(struct unwind_stacktrace *trace)
return -EINVAL;
if (!info->cache) {
info->cache = kzalloc(struct_size(cache, entries, UNWIND_MAX_ENTRIES),
GFP_KERNEL);
info->cache = kzalloc_flex(*cache, entries, UNWIND_MAX_ENTRIES,
GFP_KERNEL);
if (!info->cache)
return -ENOMEM;
}