[PATCH AUTOSEL 5.15 06/28] fs/ntfs3: Fix possible NULL-ptr-deref in ni_readpage_cmpr()

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);