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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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2
certs/blacklist.c
View File

@@ -328,7 +328,7 @@ static int __init blacklist_init(void)
if (register_key_type(&key_type_blacklist) < 0)
panic("Can't allocate system blacklist key type\n");
restriction = kzalloc(sizeof(*restriction), GFP_KERNEL);
restriction = kzalloc_obj(*restriction, GFP_KERNEL);
if (!restriction)
panic("Can't allocate blacklist keyring restriction\n");
restriction->check = restrict_link_for_blacklist;

2
certs/system_keyring.c
View File

@@ -140,7 +140,7 @@ static __init struct key_restriction *get_builtin_and_secondary_restriction(void
{
struct key_restriction *restriction;
restriction = kzalloc(sizeof(struct key_restriction), GFP_KERNEL);
restriction = kzalloc_obj(struct key_restriction, GFP_KERNEL);
if (!restriction)
panic("Can't allocate secondary trusted keyring restriction\n");