git: a6d8b449d9a3 - stable/15 - libc/stdlib/getenv.c: always allocate new environment

The branch stable/15 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=a6d8b449d9a3d0d2b9c8e96a225c02c486799476

commit a6d8b449d9a3d0d2b9c8e96a225c02c486799476
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2026-09-24 18:30:57 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2026-10-09 00:25:34 +0000

    libc/stdlib/getenv.c:  always allocate new environment
    
    PR:     298747
    
    (cherry picked from commit dec68aeff8ce0ce154e93325a74bba6af71c87af)
---
 lib/libc/stdlib/getenv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/libc/stdlib/getenv.c b/lib/libc/stdlib/getenv.c
index c1d0b7a559d5..1fff081002e2 100644
--- a/lib/libc/stdlib/getenv.c
+++ b/lib/libc/stdlib/getenv.c
@@ -268,7 +268,7 @@ __rebuild_environ(int newEnvironSize)
 	int tmpEnvironSize;
 
 	/* Resize environ. */
-	if (newEnvironSize > environSize) {
+	if (newEnvironSize > environSize || intEnviron == NULL) {
 		tmpEnvironSize = newEnvironSize * 2;
 		tmpEnviron = reallocarray(intEnviron, tmpEnvironSize + 1,
 		    sizeof(*intEnviron));