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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
Download Patch File Download Diff File Expand all files Collapse all files

2
security/tomoyo/audit.c
View File

@@ -376,7 +376,7 @@ void tomoyo_write_log2(struct tomoyo_request_info *r, int len, const char *fmt,
buf = tomoyo_init_log(r, len, fmt, args);
if (!buf)
goto out;
entry = kzalloc(sizeof(*entry), GFP_NOFS);
entry = kzalloc_obj(*entry, GFP_NOFS);
if (!entry) {
kfree(buf);
goto out;

4
security/tomoyo/common.c
View File

@@ -493,7 +493,7 @@ static struct tomoyo_profile *tomoyo_assign_profile
ptr = ns->profile_ptr[profile];
if (ptr)
return ptr;
entry = kzalloc(sizeof(*entry), GFP_NOFS | __GFP_NOWARN);
entry = kzalloc_obj(*entry, GFP_NOFS | __GFP_NOWARN);
if (mutex_lock_interruptible(&tomoyo_policy_lock))
goto out;
ptr = ns->profile_ptr[profile];
@@ -2553,7 +2553,7 @@ static int tomoyo_write_stat(struct tomoyo_io_buffer *head)
*/
int tomoyo_open_control(const u8 type, struct file *file)
{
struct tomoyo_io_buffer *head = kzalloc(sizeof(*head), GFP_NOFS);
struct tomoyo_io_buffer *head = kzalloc_obj(*head, GFP_NOFS);
if (!head)
return -ENOMEM;

2
security/tomoyo/domain.c
View File

@@ -708,7 +708,7 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm)
bool reject_on_transition_failure = false;
const struct tomoyo_path_info *candidate;
struct tomoyo_path_info exename;
struct tomoyo_execve *ee = kzalloc(sizeof(*ee), GFP_NOFS);
struct tomoyo_execve *ee = kzalloc_obj(*ee, GFP_NOFS);
if (!ee)
return -ENOMEM;