From: Christoph Hellwig <hch@lst.de>
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH 03/10] ip_rt_ioctl(): take copyin to caller
Date: Mon, 22 Jan 2018 17:43:12 +0100 [thread overview]
Message-ID: <20180122164312.GC27216@lst.de> (raw)
In-Reply-To: <20180118193755.19997-3-viro@ZenIV.linux.org.uk>
> case SIOCGSTAMP:
> @@ -884,8 +885,12 @@ int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
> break;
> case SIOCADDRT:
> case SIOCDELRT:
> + if (copy_from_user(&rt, p, sizeof(struct rtentry)))
> + return -EFAULT;
> + err = ip_rt_ioctl(net, cmd, &rt);
> + break;
> case SIOCRTMSG:
> - err = ip_rt_ioctl(net, cmd, (void __user *)arg);
> + err = -EINVAL;
This looks odd, but ip_rt_ioctl never handled SIOCRTMSG to start with,
so it looks fine. Might be worth splitting into another prep patch
with a good changelog.
ip_rt_ioctl could also use some additional simplification if it's only
called for SIOCADDRT/SIOCDELRT and lose a level of indentation while
we're at it.
But otherwise this looks good:
Reviewed-by: Christoph Hellwig <hch@lst.de>
next prev parent reply other threads:[~2018-01-22 16:43 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-13 18:17 [PATCH v3 0/9] core, x86: prevent bounds-check bypass via speculative execution Dan Williams
2018-01-13 18:17 ` [PATCH v3 1/9] Documentation: document array_ptr Dan Williams
2018-01-13 18:17 ` [PATCH v3 2/9] arm64: implement ifence_array_ptr() Dan Williams
2018-01-13 18:17 ` [PATCH v3 3/9] arm: " Dan Williams
2018-01-13 18:17 ` [PATCH v3 4/9] x86: implement ifence() Dan Williams
2018-01-13 18:17 ` [PATCH v3 5/9] x86: implement ifence_array_ptr() and array_ptr_mask() Dan Williams
2018-01-13 18:17 ` [PATCH v3 6/9] asm/nospec: mask speculative execution flows Dan Williams
2018-01-13 18:18 ` [PATCH v3 7/9] x86: introduce __uaccess_begin_nospec and ASM_IFENCE Dan Williams
2018-01-13 18:18 ` [PATCH v3 8/9] x86: use __uaccess_begin_nospec and ASM_IFENCE in get_user paths Dan Williams
2018-01-13 19:05 ` Linus Torvalds
2018-01-13 19:33 ` Linus Torvalds
2018-01-13 20:22 ` Eric W. Biederman
2018-01-16 22:23 ` Dan Williams
[not found] ` <CA+55aFxAFG5czVmCyhYMyHmXLNJ7pcXxWzusjZvLRh_qTGHj6Q@mail.gmail.com>
2018-01-16 22:41 ` Linus Torvalds
2018-01-17 14:17 ` Alan Cox
2018-01-17 18:52 ` Al Viro
2018-01-17 19:54 ` Dan Williams
2018-01-17 20:05 ` Al Viro
2018-01-17 20:14 ` Dan Williams
2018-01-18 3:06 ` [RFC][PATCH] get rid of the use of set_fs() (by way of kernel_recvmsg()) in sunrpc Al Viro
2018-01-18 3:16 ` Linus Torvalds
2018-01-18 4:43 ` Al Viro
2018-01-18 16:29 ` Christoph Hellwig
2018-01-18 17:10 ` Al Viro
2018-01-18 19:31 ` Al Viro
2018-01-18 19:37 ` [PATCH 01/10] net: separate SIOCGIFCONF handling from dev_ioctl() Al Viro
2018-01-18 19:37 ` [PATCH 02/10] devinet_ioctl(): take copyin/copyout to caller Al Viro
2018-01-22 16:40 ` Christoph Hellwig
2018-01-18 19:37 ` [PATCH 03/10] ip_rt_ioctl(): take copyin " Al Viro
2018-01-22 16:43 ` Christoph Hellwig [this message]
2018-01-18 19:37 ` [PATCH 04/10] kill dev_ifsioc() Al Viro
2018-01-22 16:47 ` Christoph Hellwig
2018-01-18 19:37 ` [PATCH 05/10] kill bond_ioctl() Al Viro
2018-01-22 16:48 ` Christoph Hellwig
2018-01-18 19:37 ` [PATCH 06/10] kill dev_ifname32() Al Viro
2018-01-18 19:37 ` [PATCH 07/10] lift handling of SIOCIW... out of dev_ioctl() Al Viro
2018-01-18 19:37 ` [PATCH 08/10] ipconfig: use dev_set_mtu() Al Viro
2018-01-18 19:37 ` [PATCH 09/10] dev_ioctl(): move copyin/copyout to callers Al Viro
2018-01-18 19:37 ` [PATCH 10/10] kill kernel_sock_ioctl() Al Viro
2018-01-22 16:49 ` Christoph Hellwig
2018-01-24 20:52 ` David Miller
2018-01-25 0:01 ` Al Viro
2018-01-25 0:21 ` Al Viro
2018-01-25 4:11 ` David Miller
2018-01-22 16:40 ` [PATCH 01/10] net: separate SIOCGIFCONF handling from dev_ioctl() Christoph Hellwig
2018-01-18 20:33 ` [RFC][PATCH] get rid of the use of set_fs() (by way of kernel_recvmsg()) in sunrpc Al Viro
2018-01-19 3:27 ` Al Viro
2018-01-17 19:26 ` [PATCH v3 8/9] x86: use __uaccess_begin_nospec and ASM_IFENCE in get_user paths Linus Torvalds
2018-01-17 20:01 ` Eric Dumazet
2018-01-18 16:38 ` Christoph Hellwig
2018-01-18 16:49 ` Linus Torvalds
2018-01-18 18:12 ` Al Viro
2018-01-17 4:30 ` Dan Williams
2018-01-17 6:28 ` Al Viro
2018-01-17 6:50 ` Dan Williams
2018-01-17 10:07 ` David Laight
2018-01-17 18:12 ` Dan Williams
2018-01-17 19:16 ` Linus Torvalds
2018-01-13 18:18 ` [PATCH v3 9/9] vfs, fdtable: prevent bounds-check bypass via speculative execution Dan Williams
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180122164312.GC27216@lst.de \
--to=hch@lst.de \
--cc=davem@davemloft.net \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=torvalds@linux-foundation.org \
--cc=viro@ZenIV.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox