From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CF0E014F85 for ; Sun, 29 Oct 2023 22:59:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="agi1fNL+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1F110C433C9; Sun, 29 Oct 2023 22:59:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1698620365; bh=pt3OFPe5XCJhIqZLC3h4VkJBZJFyvIu2/H5vJBzxskI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=agi1fNL+U8/7Wsuf6JfvJTO6Tcu3xdqH/WdBLrOIa8sBc7DO0IiiMpyuMDbyGW5L1 Wz4WBZWsjckGvJwtVW5b2DEHrQauj3TUKmJ9jUzLOX2zVkSl5dPvUAExuv/taXNb0s 0LS0590DSL24Z8us4WtjGMwqfctb6+XZ7JuOykAMiabIHmKJlBnzxxYQYFpD+vsvpu q1Jfdf/oEDI9HPG9poMyyu6vG2+JMFn24wodWYhLQ2d1Fl3NAe2AD4tNyDLewVRFk5 7/jRBuI7fAoLKRkRn27SHLzJDZjRgmda1Os+Db0t+MILBsclhq53jQSMLsdOnuGBD6 I44p5J7NwPMKw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Konstantin Komarov , Sasha Levin , ntfs3@lists.linux.dev Subject: [PATCH AUTOSEL 5.15 06/28] fs/ntfs3: Fix possible NULL-ptr-deref in ni_readpage_cmpr() Date: Sun, 29 Oct 2023 18:58:41 -0400 Message-ID: <20231029225916.791798-6-sashal@kernel.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231029225916.791798-1-sashal@kernel.org> References: <20231029225916.791798-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: ntfs3@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.15.137 Content-Transfer-Encoding: 8bit From: Konstantin Komarov [ Upstream commit 32e9212256b88f35466642f9c939bb40cfb2c2de ] Signed-off-by: Konstantin Komarov Signed-off-by: Sasha Levin --- fs/ntfs3/frecord.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ntfs3/frecord.c b/fs/ntfs3/frecord.c index 73a56d7ac84b7..b02778cbb1d34 100644 --- a/fs/ntfs3/frecord.c +++ b/fs/ntfs3/frecord.c @@ -2100,7 +2100,7 @@ int ni_readpage_cmpr(struct ntfs_inode *ni, struct page *page) 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); -- 2.42.0