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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/debug/kdb/kdb_main.c
View file

@ -661,7 +661,7 @@ static int kdb_defcmd2(const char *cmdstr, const char *argv0)
return 0;
}
kms = kmalloc(sizeof(*kms), GFP_KDB);
kms = kmalloc_obj(*kms, GFP_KDB);
if (!kms) {
kdb_printf("Could not allocate new kdb macro command: %s\n",
cmdstr);
@ -707,7 +707,7 @@ static int kdb_defcmd(int argc, const char **argv)
kdb_printf("Command only available during kdb_init()\n");
return KDB_NOTIMP;
}
kdb_macro = kzalloc(sizeof(*kdb_macro), GFP_KDB);
kdb_macro = kzalloc_obj(*kdb_macro, GFP_KDB);
if (!kdb_macro)
goto fail_defcmd;