linux-kernel - [PATCH] Fixed https://bugzilla.kernel.org/show_bug.cgi?id=202935 allow write on the same file

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <1557813154-6663-1-git-send-email-alexander198961@gmail.com>
Date:   Tue, 14 May 2019 05:52:34 +0000
From:   Kovtunenko Oleksandr <alexander198961@...il.com>
To:     sfrench@...ba.org
Cc:     linux-kernel@...r.kernel.org, samba-technical@...ts.samba.org,
        linux-cifs@...r.kernel.org,
        Kovtunenko Oleksandr <alexander198961@...il.com>
Subject: [PATCH] Fixed  https://bugzilla.kernel.org/show_bug.cgi?id=202935 allow write on the same file

Signed-off-by: Kovtunenko Oleksandr <alexander198961@...il.com>
---
 fs/cifs/cifsfs.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index a05bf1d..2964438 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1073,11 +1073,6 @@ ssize_t cifs_file_copychunk_range(unsigned int xid,
 
 	cifs_dbg(FYI, "copychunk range\n");
 
-	if (src_inode == target_inode) {
-		rc = -EINVAL;
-		goto out;
-	}
-
 	if (!src_file->private_data || !dst_file->private_data) {
 		rc = -EBADF;
 		cifs_dbg(VFS, "missing cifsFileInfo on copy range src file\n");
-- 
1.8.3.1