git: ca16e7a49204 - main - malloc: Fix realloc() for large allocations

The branch main has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=ca16e7a4920415bf9d09cf76bd2c3cda7447c098

commit ca16e7a4920415bf9d09cf76bd2c3cda7447c098
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2026-10-22 16:41:04 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2026-10-28 13:06:58 +0000

    malloc: Fix realloc() for large allocations
    
    min() truncates its parameters.
    
    MFC after:      1 week
    Sponsored by:   The FreeBSD Foundation
---
 sys/kern/kern_malloc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/kern/kern_malloc.c b/sys/kern/kern_malloc.c
index d2dd7ec5acee..6f3c3222daca 100644
--- a/sys/kern/kern_malloc.c
+++ b/sys/kern/kern_malloc.c
@@ -981,7 +981,7 @@ realloc(void *addr, size_t size, struct malloc_type *mtp, int flags)
 	uma_zone_t zone;
 	uma_slab_t slab;
 #endif
-	unsigned long alloc;
+	size_t alloc;
 	void *newaddr;
 
 	KASSERT(mtp->ks_version == M_VERSION,
@@ -1045,7 +1045,7 @@ realloc(void *addr, size_t size, struct malloc_type *mtp, int flags)
 	 * valid before performing the copy.
 	 */
 	kasan_mark(addr, alloc, alloc, 0);
-	bcopy(addr, newaddr, min(size, alloc));
+	bcopy(addr, newaddr, MIN(size, alloc));
 	free(addr, mtp);
 	return (newaddr);
 }