From 69050f8d6d075dc01af7a5f2f550a8067510366f Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 20 Feb 2026 23:49:23 -0800 Subject: treewide: Replace kmalloc with kmalloc_obj for non-scalar types 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 --- kernel/trace/fprobe.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'kernel/trace/fprobe.c') diff --git a/kernel/trace/fprobe.c b/kernel/trace/fprobe.c index 1188eefef07c..0d649ca71ce0 100644 --- a/kernel/trace/fprobe.c +++ b/kernel/trace/fprobe.c @@ -749,7 +749,7 @@ static int fprobe_init(struct fprobe *fp, unsigned long *addrs, int num) return -E2BIG; fp->entry_data_size = size; - hlist_array = kzalloc(struct_size(hlist_array, array, num), GFP_KERNEL); + hlist_array = kzalloc_flex(*hlist_array, array, num, GFP_KERNEL); if (!hlist_array) return -ENOMEM; @@ -805,7 +805,7 @@ int register_fprobe(struct fprobe *fp, const char *filter, const char *notfilter if (!addrs) return -ENOMEM; - mods = kcalloc(num, sizeof(*mods), GFP_KERNEL); + mods = kzalloc_objs(*mods, num, GFP_KERNEL); if (!mods) return -ENOMEM; -- cgit v1.2.3