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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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6
security/safesetid/securityfs.c
View File

@@ -118,7 +118,7 @@ static int verify_ruleset(struct setid_ruleset *pol)
res = -EINVAL;
/* fix it up */
nrule = kmalloc(sizeof(struct setid_rule), GFP_KERNEL);
nrule = kmalloc_obj(struct setid_rule, GFP_KERNEL);
if (!nrule)
return -ENOMEM;
if (pol->type == UID){
@@ -146,7 +146,7 @@ static ssize_t handle_policy_update(struct file *file,
if (len >= KMALLOC_MAX_SIZE)
return -EINVAL;
pol = kmalloc(sizeof(struct setid_ruleset), GFP_KERNEL);
pol = kmalloc_obj(struct setid_ruleset, GFP_KERNEL);
if (!pol)
return -ENOMEM;
pol->policy_str = NULL;
@@ -175,7 +175,7 @@ static ssize_t handle_policy_update(struct file *file,
}
*end = '\0';
rule = kmalloc(sizeof(struct setid_rule), GFP_KERNEL);
rule = kmalloc_obj(struct setid_rule, GFP_KERNEL);
if (!rule) {
err = -ENOMEM;
goto out_free_buf;