2023-09-26 14:23:02

by Konstantin Komarov

Subject: [PATCH 7/8] fs/ntfs3: Fix possible NULL-ptr-deref in ni_readpage_cmpr()

Signed-off-by: Konstantin Komarov <[email protected]>
---
 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