From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Date: Tue, 26 Sep 2023 08:19:08 +0000 (+0300)
Subject: fs/ntfs3: Fix possible NULL-ptr-deref in ni_readpage_cmpr()
X-Git-Tag: v6.6-rc7~33^2~6
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=32e9212256b88f35466642f9c939bb40cfb2c2de;p=linux-block.git

fs/ntfs3: Fix possible NULL-ptr-deref in ni_readpage_cmpr()

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---

diff --git a/fs/ntfs3/frecord.c b/fs/ntfs3/frecord.c
index d49fbb22bd5e..dad976a68985 100644
--- a/fs/ntfs3/frecord.c
+++ b/fs/ntfs3/frecord.c
@@ -2148,7 +2148,7 @@ out1:
 
 	for (i = 0; i < pages_per_frame; i++) {
 		pg = pages[i];
-		if (i == idx)
+		if (i == idx || !pg)
 			continue;
 		unlock_page(pg);
 		put_page(pg);