From b4878ea99f2b40ef1925720b1b4ca7f4af1ba785 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Sun, 2 Jun 2024 18:15:25 -0400 Subject: [PATCH] SUNRPC: Fix loop termination condition in gss_free_in_token_pages() commit 4a77c3dead97339478c7422eb07bf4bf63577008 upstream. The in_token->pages[] array is not NULL terminated. This results in the following KASAN splat: KASAN: maybe wild-memory-access in range [0x04a2013400000008-0x04a201340000000f] Fixes: bafa6b4d95d9 ("SUNRPC: Fix gss_free_in_token_pages()") Reviewed-by: Benjamin Coddington Signed-off-by: Chuck Lever Signed-off-by: Greg Kroah-Hartman --- net/sunrpc/auth_gss/svcauth_gss.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c index 6ad175771850..93a7b7061d9a 100644 --- a/net/sunrpc/auth_gss/svcauth_gss.c +++ b/net/sunrpc/auth_gss/svcauth_gss.c @@ -1162,7 +1162,7 @@ static int gss_read_proxy_verf(struct svc_rqst *rqstp, } pages = DIV_ROUND_UP(inlen, PAGE_SIZE); - in_token->pages = kcalloc(pages, sizeof(struct page *), GFP_KERNEL); + in_token->pages = kcalloc(pages + 1, sizeof(struct page *), GFP_KERNEL); if (!in_token->pages) { kfree(in_handle->data); return SVC_DENIED;