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SUNRPC: Fix loop termination condition in gss_free_in_token_pages()

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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 <bcodding@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chuck Lever 2024-06-02 18:15:25 -04:00 • committed by Greg Kroah-Hartman
parent f5f4675960
commit 6ed45d20d3
1 changed files with 1 additions and 1 deletions
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2
net/sunrpc/auth_gss/svcauth_gss.c
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@ -1104,7 +1104,7 @@ 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;