From: Konstantin Komarovc <almaz.alexandrovich@paragon-software.com>
To: <ntfs3@lists.linux.dev>
Cc: <linux-kernel@vger.kernel.org>, <linux-fsdevel@vger.kernel.org>
Subject: [PATCH 7/8] fs/ntfs3: Fix possible NULL-ptr-deref in ni_readpage_cmpr()
Date: Tue, 26 Sep 2023 12:57:13 +0300 [thread overview]
Message-ID: <a1170a72-0dc1-4092-bb22-7279dcdf3c0a@paragon-software.com> (raw)
In-Reply-To: <7c217d7d-6ee4-4603-b5f1-ebe7b68cf430@paragon-software.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---
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 d49fbb22bd5e..dad976a68985 100644
--- a/fs/ntfs3/frecord.c
+++ b/fs/ntfs3/frecord.c
@@ -2148,7 +2148,7 @@ 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);
--
2.34.1
next prev parent reply other threads:[~2023-09-26 9:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-26 9:54 [PATCH 0/8] fs/ntfs3: Bugfix and refactoring Konstantin Komarovc
2023-09-26 9:55 ` [PATCH 1/8] fs/ntfs3: Use inode_set_ctime_to_ts instead of inode_set_ctime Konstantin Komarovc
2023-09-26 9:55 ` [PATCH 2/8] fs/ntfs3: Allow repeated call to ntfs3_put_sbi Konstantin Komarovc
2023-09-26 9:55 ` [PATCH 3/8] fs/ntfs3: Fix alternative boot searching Konstantin Komarovc
2023-09-26 9:56 ` [PATCH 4/8] fs/ntfs3: Refactoring and comments Konstantin Komarovc
2023-09-26 9:56 ` [PATCH 5/8] fs/ntfs3: Add more info into /proc/fs/ntfs3/<dev>/volinfo Konstantin Komarovc
2023-09-26 9:56 ` [PATCH 6/8] fs/ntfs3: Do not allow to change label if volume is read-only Konstantin Komarovc
2023-09-26 9:57 ` Konstantin Komarovc [this message]
2023-09-26 9:57 ` [PATCH 8/8] fs/ntfs3: Fix NULL pointer dereference on error in attr_allocate_frame() Konstantin Komarovc
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