linux-kernel - Re: [syzbot] Re: [syzbot] [ntfs3?] BUG: unable to handle kernel NULL pointer dereference in generic_file_read

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Message-ID: <67f8679e.050a0220.355867.0018.GAE@google.com>
Date: Thu, 10 Apr 2025 17:51:42 -0700
From: syzbot <syzbot+e36cc3297bd3afd25e19@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org
Subject: Re: [syzbot] Re: [syzbot] [ntfs3?] BUG: unable to handle kernel NULL
 pointer dereference in generic_file_read_iter

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Subject: Re: [syzbot] [ntfs3?] BUG: unable to handle kernel NULL pointer dereference in generic_file_read_iter
Author: lizhi.xu@...driver.com

missing direct io func.
#syz test

diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c
index 3e2957a1e360..50524f573d3a 100644
--- a/fs/ntfs3/inode.c
+++ b/fs/ntfs3/inode.c
@@ -2068,5 +2068,6 @@ const struct address_space_operations ntfs_aops_cmpr = {
 	.read_folio	= ntfs_read_folio,
 	.readahead	= ntfs_readahead,
 	.dirty_folio	= block_dirty_folio,
+	.direct_IO	= ntfs_direct_IO,
 };
 // clang-format on