linux-kernel - [PATCH]AIO: fix cleanup in io_submit

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: <3d0408630710060926g7c2bad34je881b01a0cfecf72@mail.gmail.com>
Date:	Sun, 7 Oct 2007 00:26:37 +0800
From:	"Yan Zheng" <yanzheng@...n.com>
To:	linux-kernel@...r.kernel.org
Subject: [PATCH]AIO: fix cleanup in io_submit_one(...)

Hello,

When IOCB_FLAG_RESFD flag is set and iocb->aio_resfd is incorrect,
statement 'goto out_put_req' is executed. At label 'out_put_req',
aio_put_req(..) is called, which requires 'req->ki_filp' set.

Regards

Signed-off-by: Yan Zheng<yanzheng@...n.com>
----
diff -ur linux-2.6.23-rc9/fs/aio.c linux/fs/aio.c
--- linux-2.6.23-rc9/fs/aio.c   2007-07-09 07:32:17.000000000 +0800
+++ linux/fs/aio.c      2007-10-07 00:05:10.000000000 +0800
@@ -1562,6 +1562,7 @@
                fput(file);
                return -EAGAIN;
        }
+       req->ki_filp = file;
        if (iocb->aio_flags & IOCB_FLAG_RESFD) {
                /*
                 * If the IOCB_FLAG_RESFD flag of aio_flags is set, get an
@@ -1576,7 +1577,6 @@
                }
        }

-       req->ki_filp = file;
        ret = put_user(req->ki_key, &user_iocb->aio_key);
        if (unlikely(ret)) {
                dprintk("EFAULT: aio_key\n");
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/