From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>,
Sasha Levin <sashal@kernel.org>,
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 [thread overview]
Message-ID: <20231029225916.791798-6-sashal@kernel.org> (raw)
In-Reply-To: <20231029225916.791798-1-sashal@kernel.org>
From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
[ Upstream commit 32e9212256b88f35466642f9c939bb40cfb2c2de ]
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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
next prev parent reply other threads:[~2023-10-29 22:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20231029225916.791798-1-sashal@kernel.org>
2023-10-29 22:58 ` [PATCH AUTOSEL 5.15 02/28] fs/ntfs3: Add ckeck in ni_update_parent() Sasha Levin
2023-10-29 22:58 ` [PATCH AUTOSEL 5.15 03/28] fs/ntfs3: Write immediately updated ntfs state Sasha Levin
2023-10-29 22:58 ` [PATCH AUTOSEL 5.15 04/28] fs/ntfs3: Use kvmalloc instead of kmalloc(... __GFP_NOWARN) Sasha Levin
2023-10-29 22:58 ` [PATCH AUTOSEL 5.15 05/28] fs/ntfs3: fix deadlock in mark_as_free_ex Sasha Levin
2023-10-29 22:58 ` Sasha Levin [this message]
2023-10-29 22:58 ` [PATCH AUTOSEL 5.15 07/28] fs/ntfs3: Fix NULL pointer dereference on error in attr_allocate_frame() Sasha Levin
2023-10-29 22:58 ` [PATCH AUTOSEL 5.15 08/28] fs/ntfs3: Fix possible null-pointer dereference in hdr_find_e() Sasha Levin
2023-10-29 22:58 ` [PATCH AUTOSEL 5.15 09/28] fs/ntfs3: Fix directory element type detection Sasha Levin
2023-10-29 22:58 ` [PATCH AUTOSEL 5.15 10/28] fs/ntfs3: Avoid possible memory leak Sasha Levin
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