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From: David Laight <David.Laight at ACULAB.COM>
To: mptcp at lists.01.org
Subject: [MPTCP] Re: [PATCH 25/26] net: pass a sockptr_t into ->setsockopt
Date: Fri, 07 Aug 2020 09:18:03 +0000	[thread overview]
Message-ID: <f21589f1262640b09ca27ed20f8e6790@AcuMS.aculab.com> (raw)
In-Reply-To: 6357942b-0b6e-1901-7dce-e308c9fac347@gmail.com

[-- Attachment #1: Type: text/plain, Size: 1849 bytes --]

From: Eric Dumazet
> Sent: 06 August 2020 23:21
> 
> On 7/22/20 11:09 PM, Christoph Hellwig wrote:
> > Rework the remaining setsockopt code to pass a sockptr_t instead of a
> > plain user pointer.  This removes the last remaining set_fs(KERNEL_DS)
> > outside of architecture specific code.
> >
> > Signed-off-by: Christoph Hellwig <hch(a)lst.de>
> > Acked-by: Stefan Schmidt <stefan(a)datenfreihafen.org> [ieee802154]
> > ---
> 
> 
> ...
> 
> > diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
> > index 594e01ad670aa6..874f01cd7aec42 100644
> > --- a/net/ipv6/raw.c
> > +++ b/net/ipv6/raw.c
> > @@ -972,13 +972,13 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
> >  }
> >
> 
> ...
> 
> >  static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
> > -			    char __user *optval, unsigned int optlen)
> > +			       sockptr_t optval, unsigned int optlen)
> >  {
> >  	struct raw6_sock *rp = raw6_sk(sk);
> >  	int val;
> >
> > -	if (get_user(val, (int __user *)optval))
> > +	if (copy_from_sockptr(&val, optval, sizeof(val)))
> >  		return -EFAULT;
> >
> 
> converting get_user(...)   to  copy_from_sockptr(...) really assumed the optlen
> has been validated to be >= sizeof(int) earlier.
> 
> Which is not always the case, for example here.
> 
> User application can fool us passing optlen=0, and a user pointer of exactly TASK_SIZE-1

Won't the user pointer force copy_from_sockptr() to call
copy_from_user() which will then do access_ok() on the entire
range and so return -EFAULT.

The only problems arise if the kernel code adds an offset to the
user address.
And the later patch added an offset to the copy functions.

	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)

WARNING: multiple messages have this Message-ID (diff)
From: David Laight <David.Laight@ACULAB.COM>
To: 'Eric Dumazet' <eric.dumazet@gmail.com>,
	Christoph Hellwig <hch@lst.de>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	Eric Dumazet <edumazet@google.com>
Cc: "linux-crypto@vger.kernel.org" <linux-crypto@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"bpf@vger.kernel.org" <bpf@vger.kernel.org>,
	"netfilter-devel@vger.kernel.org"
	<netfilter-devel@vger.kernel.org>,
	"coreteam@netfilter.org" <coreteam@netfilter.org>,
	"linux-sctp@vger.kernel.org" <linux-sctp@vger.kernel.org>,
	"linux-hams@vger.kernel.org" <linux-hams@vger.kernel.org>,
	"linux-bluetooth@vger.kernel.org"
	<linux-bluetooth@vger.kernel.org>,
	"bridge@lists.linux-foundation.org" 
	<bridge@lists.linux-foundation.org>,
	"linux-can@vger.kernel.org" <linux-can@vger.kernel.org>,
	"dccp@vger.kernel.org" <dccp@vger.kernel.org>,
	"linux-decnet-user@lists.sourceforge.net" 
	<linux-decnet-user@lists.sourceforge.net>,
	"linux-wpan@vger.kernel.org" <linux-wpan@vger.kernel.org>,
	"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
	"mptcp@lists.01.org" <mptcp@lists.01.org>,
	"lvs-devel@vger.kernel.org" <lvs-devel@vger.kernel.org>,
	"rds-devel@oss.oracle.com" <rds-devel@oss.oracle.com>,
	"linux-afs@lists.infradead.org" <linux-afs@lists.infradead.org>,
	"tipc-discussion@lists.sourceforge.net" 
	<tipc-discussion@lists.sourceforge.net>,
	"linux-x25@vger.kernel.org" <linux-x25@vger.kernel.org>,
	Stefan Schmidt <stefan@datenfreihafen.org>
Subject: RE: [PATCH 25/26] net: pass a sockptr_t into ->setsockopt
Date: Fri, 7 Aug 2020 09:18:03 +0000	[thread overview]
Message-ID: <f21589f1262640b09ca27ed20f8e6790@AcuMS.aculab.com> (raw)
In-Reply-To: <6357942b-0b6e-1901-7dce-e308c9fac347@gmail.com>

From: Eric Dumazet
> Sent: 06 August 2020 23:21
> 
> On 7/22/20 11:09 PM, Christoph Hellwig wrote:
> > Rework the remaining setsockopt code to pass a sockptr_t instead of a
> > plain user pointer.  This removes the last remaining set_fs(KERNEL_DS)
> > outside of architecture specific code.
> >
> > Signed-off-by: Christoph Hellwig <hch@lst.de>
> > Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> [ieee802154]
> > ---
> 
> 
> ...
> 
> > diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
> > index 594e01ad670aa6..874f01cd7aec42 100644
> > --- a/net/ipv6/raw.c
> > +++ b/net/ipv6/raw.c
> > @@ -972,13 +972,13 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
> >  }
> >
> 
> ...
> 
> >  static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
> > -			    char __user *optval, unsigned int optlen)
> > +			       sockptr_t optval, unsigned int optlen)
> >  {
> >  	struct raw6_sock *rp = raw6_sk(sk);
> >  	int val;
> >
> > -	if (get_user(val, (int __user *)optval))
> > +	if (copy_from_sockptr(&val, optval, sizeof(val)))
> >  		return -EFAULT;
> >
> 
> converting get_user(...)   to  copy_from_sockptr(...) really assumed the optlen
> has been validated to be >= sizeof(int) earlier.
> 
> Which is not always the case, for example here.
> 
> User application can fool us passing optlen=0, and a user pointer of exactly TASK_SIZE-1

Won't the user pointer force copy_from_sockptr() to call
copy_from_user() which will then do access_ok() on the entire
range and so return -EFAULT.

The only problems arise if the kernel code adds an offset to the
user address.
And the later patch added an offset to the copy functions.

	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)

WARNING: multiple messages have this Message-ID (diff)
From: David Laight <David.Laight@ACULAB.COM>
To: 'Eric Dumazet' <eric.dumazet@gmail.com>,
	Christoph Hellwig <hch@lst.de>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	Eric Dumazet <edumazet@google.com>
Cc: "linux-crypto@vger.kernel.org" <linux-crypto@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"bpf@vger.kernel.org" <bpf@vger.kernel.org>,
	"netfilter-devel@vger.kernel.org"
	<netfilter-devel@vger.kernel.org>,
	"coreteam@netfilter.org" <coreteam@netfilter.org>,
	"linux-sctp@vger.kernel.org" <linux-sctp@vger.kernel.org>,
	"linux-hams@vger.kernel.org" <linux-hams@vger.kernel.org>,
	"linux-bluetooth@vger.kernel.org"
	<linux-bluetooth@vger.kernel.org>,
	"bridge@lists.linux-foundation.org"
	<bridge@lists.linux-foundation.org>,
	"linux-can@vger.kernel.org" <linux-can@vger.kernel.org>,
	"dccp@vger.kernel.org" <dccp@vger.kernel.org>,
	"linux-decnet-user@lists.sourceforge.net"
	<linux-decnet-user@lists.sourcefor>
Subject: RE: [PATCH 25/26] net: pass a sockptr_t into ->setsockopt
Date: Fri, 7 Aug 2020 09:18:03 +0000	[thread overview]
Message-ID: <f21589f1262640b09ca27ed20f8e6790@AcuMS.aculab.com> (raw)
In-Reply-To: <6357942b-0b6e-1901-7dce-e308c9fac347@gmail.com>

From: Eric Dumazet
> Sent: 06 August 2020 23:21
> 
> On 7/22/20 11:09 PM, Christoph Hellwig wrote:
> > Rework the remaining setsockopt code to pass a sockptr_t instead of a
> > plain user pointer.  This removes the last remaining set_fs(KERNEL_DS)
> > outside of architecture specific code.
> >
> > Signed-off-by: Christoph Hellwig <hch@lst.de>
> > Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> [ieee802154]
> > ---
> 
> 
> ...
> 
> > diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
> > index 594e01ad670aa6..874f01cd7aec42 100644
> > --- a/net/ipv6/raw.c
> > +++ b/net/ipv6/raw.c
> > @@ -972,13 +972,13 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
> >  }
> >
> 
> ...
> 
> >  static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
> > -			    char __user *optval, unsigned int optlen)
> > +			       sockptr_t optval, unsigned int optlen)
> >  {
> >  	struct raw6_sock *rp = raw6_sk(sk);
> >  	int val;
> >
> > -	if (get_user(val, (int __user *)optval))
> > +	if (copy_from_sockptr(&val, optval, sizeof(val)))
> >  		return -EFAULT;
> >
> 
> converting get_user(...)   to  copy_from_sockptr(...) really assumed the optlen
> has been validated to be >= sizeof(int) earlier.
> 
> Which is not always the case, for example here.
> 
> User application can fool us passing optlen=0, and a user pointer of exactly TASK_SIZE-1

Won't the user pointer force copy_from_sockptr() to call
copy_from_user() which will then do access_ok() on the entire
range and so return -EFAULT.

The only problems arise if the kernel code adds an offset to the
user address.
And the later patch added an offset to the copy functions.

	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)

WARNING: multiple messages have this Message-ID (diff)
From: David Laight <David.Laight@ACULAB.COM>
To: 'Eric Dumazet' <eric.dumazet@gmail.com>,
	Christoph Hellwig <hch@lst.de>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	Eric Dumazet <edumazet@google.com>
Cc: "linux-crypto@vger.kernel.org" <linux-crypto@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"bpf@vger.kernel.org" <bpf@vger.kernel.org>,
	"netfilter-devel@vger.kernel.org"
	<netfilter-devel@vger.kernel.org>,
	"coreteam@netfilter.org" <coreteam@netfilter.org>,
	"linux-sctp@vger.kernel.org" <linux-sctp@vger.kernel.org>,
	"linux-hams@vger.kernel.org" <linux-hams@vger.kernel.org>,
	"linux-bluetooth@vger.kernel.org"
	<linux-bluetooth@vger.kernel.org>,
	"bridge@lists.linux-foundation.org"
	<bridge@lists.linux-foundation.org>,
	"linux-can@vger.kernel.org" <linux-can@vger.kernel.org>,
	"dccp@vger.kernel.org" <dccp@vger.kernel.org>,
	"linux-decnet-user@lists.sourceforge.net"
	<linux-decnet-user@lists.sourceforge.net>,
	"linux-wpan@vger.kernel.org" <linux-wpan@vger.kernel.org>,
	"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
	"mptcp@lists.01.org" <mptcp@lists.01.org>,
	"lvs-devel@vger.kernel.org" <lvs-devel@vger.kernel.org>,
	"rds-devel@oss.oracle.com" <rds-devel@oss.oracle.com>,
	"linux-afs@lists.infradead.org" <linux-afs@lists.infradead.org>,
	"tipc-discussion@lists.sourceforge.net"
	<tipc-discussion@lists.sourceforge.net>,
	"linux-x25@vger.kernel.org" <linux-x25@vger.kernel.org>,
	Stefan Schmidt <stefan@datenfreihafen.org>
Subject: RE: [PATCH 25/26] net: pass a sockptr_t into ->setsockopt
Date: Fri, 7 Aug 2020 09:18:03 +0000	[thread overview]
Message-ID: <f21589f1262640b09ca27ed20f8e6790@AcuMS.aculab.com> (raw)
In-Reply-To: <6357942b-0b6e-1901-7dce-e308c9fac347@gmail.com>

From: Eric Dumazet
> Sent: 06 August 2020 23:21
> 
> On 7/22/20 11:09 PM, Christoph Hellwig wrote:
> > Rework the remaining setsockopt code to pass a sockptr_t instead of a
> > plain user pointer.  This removes the last remaining set_fs(KERNEL_DS)
> > outside of architecture specific code.
> >
> > Signed-off-by: Christoph Hellwig <hch@lst.de>
> > Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> [ieee802154]
> > ---
> 
> 
> ...
> 
> > diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
> > index 594e01ad670aa6..874f01cd7aec42 100644
> > --- a/net/ipv6/raw.c
> > +++ b/net/ipv6/raw.c
> > @@ -972,13 +972,13 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
> >  }
> >
> 
> ...
> 
> >  static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
> > -			    char __user *optval, unsigned int optlen)
> > +			       sockptr_t optval, unsigned int optlen)
> >  {
> >  	struct raw6_sock *rp = raw6_sk(sk);
> >  	int val;
> >
> > -	if (get_user(val, (int __user *)optval))
> > +	if (copy_from_sockptr(&val, optval, sizeof(val)))
> >  		return -EFAULT;
> >
> 
> converting get_user(...)   to  copy_from_sockptr(...) really assumed the optlen
> has been validated to be >= sizeof(int) earlier.
> 
> Which is not always the case, for example here.
> 
> User application can fool us passing optlen=0, and a user pointer of exactly TASK_SIZE-1

Won't the user pointer force copy_from_sockptr() to call
copy_from_user() which will then do access_ok() on the entire
range and so return -EFAULT.

The only problems arise if the kernel code adds an offset to the
user address.
And the later patch added an offset to the copy functions.

	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)

WARNING: multiple messages have this Message-ID (diff)
From: David Laight <David.Laight@ACULAB.COM>
To: 'Eric Dumazet' <eric.dumazet@gmail.com>,
	Christoph Hellwig <hch@lst.de>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	Eric Dumazet <edumazet@google.com>
Cc: "linux-crypto@vger.kernel.org" <linux-crypto@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"bpf@vger.kernel.org" <bpf@vger.kernel.org>,
	"netfilter-devel@vger.kernel.org"
	<netfilter-devel@vger.kernel.org>,
	"coreteam@netfilter.org" <coreteam@netfilter.org>,
	"linux-sctp@vger.kernel.org" <linux-sctp@vger.kernel.org>,
	"linux-hams@vger.kernel.org" <linux-hams@vger.kernel.org>,
	"linux-bluetooth@vger.kernel.org"
	<linux-bluetooth@vger.kernel.org>,
	"bridge@lists.linux-foundation.org"
	<bridge@lists.linux-foundation.org>,
	"linux-can@vger.kernel.org" <linux-can@vger.kernel.org>,
	"dccp@vger.kernel.org" <dccp@vger.kernel.org>,
	"linux-decnet-user@lists.sourceforge.net"
	<linux-decnet-user@lists.sourceforge.net>,
	"linux-wpan@vger.kernel.org" <linux-wpan@vger.kernel.org>,
	"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
	"mptcp@lists.01.org" <mptcp@lists.01.org>,
	"lvs-devel@vger.kernel.org" <lvs-devel@vger.kernel.org>,
	"rds-devel@oss.oracle.com" <rds-devel@oss.oracle.com>,
	"linux-afs@lists.infradead.org" <linux-afs@lists.infradead.org>,
	"tipc-discussion@lists.sourceforge.net"
	<tipc-discussion@lists.sourceforge.net>,
	"linux-x25@vger.kernel.org" <linux-x25@vger.kernel.org>,
	Stefan Schmidt <stefan@datenfreihafen.org>
Subject: RE: [PATCH 25/26] net: pass a sockptr_t into ->setsockopt
Date: Fri, 07 Aug 2020 09:18:03 +0000	[thread overview]
Message-ID: <f21589f1262640b09ca27ed20f8e6790@AcuMS.aculab.com> (raw)
In-Reply-To: <6357942b-0b6e-1901-7dce-e308c9fac347@gmail.com>

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WARNING: multiple messages have this Message-ID (diff)
From: David Laight <David.Laight@ACULAB.COM>
To: dccp@vger.kernel.org
Subject: RE: [PATCH 25/26] net: pass a sockptr_t into ->setsockopt
Date: Fri, 07 Aug 2020 09:18:03 +0000	[thread overview]
Message-ID: <f21589f1262640b09ca27ed20f8e6790@AcuMS.aculab.com> (raw)
In-Reply-To: <20200723060908.50081-26-hch@lst.de>

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WARNING: multiple messages have this Message-ID (diff)
From: David Laight <David.Laight@ACULAB.COM>
To: 'Eric Dumazet' <eric.dumazet@gmail.com>,
	Christoph Hellwig <hch@lst.de>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	Eric Dumazet <edumazet@google.com>
Cc: "linux-sctp@vger.kernel.org" <linux-sctp@vger.kernel.org>,
	"linux-afs@lists.infradead.org" <linux-afs@lists.infradead.org>,
	Stefan Schmidt <stefan@datenfreihafen.org>,
	"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
	"rds-devel@oss.oracle.com" <rds-devel@oss.oracle.com>,
	"linux-x25@vger.kernel.org" <linux-x25@vger.kernel.org>,
	"dccp@vger.kernel.org" <dccp@vger.kernel.org>,
	"bridge@lists.linux-foundation.org"
	<bridge@lists.linux-foundation.org>,
	"lvs-devel@vger.kernel.org" <lvs-devel@vger.kernel.org>,
	"coreteam@netfilter.org" <coreteam@netfilter.org>,
	"mptcp@lists.01.org" <mptcp@lists.01.org>,
	"netfilter-devel@vger.kernel.org"
	<netfilter-devel@vger.kernel.org>,
	"linux-can@vger.kernel.org" <linux-can@vger.kernel.org>,
	"linux-hams@vger.kernel.org" <linux-hams@vger.kernel.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"linux-decnet-user@lists.sourceforge.net"
	<linux-decnet-user@lists.sourceforge.net>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-bluetooth@vger.kernel.org"
	<linux-bluetooth@vger.kernel.org>,
	"tipc-discussion@lists.sourceforge.net"
	<tipc-discussion@lists.sourceforge.net>,
	"linux-crypto@vger.kernel.org" <linux-crypto@vger.kernel.org>,
	"bpf@vger.kernel.org" <bpf@vger.kernel.org>,
	"linux-wpan@vger.kernel.org" <linux-wpan@vger.kernel.org>
Subject: Re: [Bridge] [PATCH 25/26] net: pass a sockptr_t into ->setsockopt
Date: Fri, 7 Aug 2020 09:18:03 +0000	[thread overview]
Message-ID: <f21589f1262640b09ca27ed20f8e6790@AcuMS.aculab.com> (raw)
In-Reply-To: <6357942b-0b6e-1901-7dce-e308c9fac347@gmail.com>

From: Eric Dumazet
> Sent: 06 August 2020 23:21
> 
> On 7/22/20 11:09 PM, Christoph Hellwig wrote:
> > Rework the remaining setsockopt code to pass a sockptr_t instead of a
> > plain user pointer.  This removes the last remaining set_fs(KERNEL_DS)
> > outside of architecture specific code.
> >
> > Signed-off-by: Christoph Hellwig <hch@lst.de>
> > Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> [ieee802154]
> > ---
> 
> 
> ...
> 
> > diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
> > index 594e01ad670aa6..874f01cd7aec42 100644
> > --- a/net/ipv6/raw.c
> > +++ b/net/ipv6/raw.c
> > @@ -972,13 +972,13 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
> >  }
> >
> 
> ...
> 
> >  static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
> > -			    char __user *optval, unsigned int optlen)
> > +			       sockptr_t optval, unsigned int optlen)
> >  {
> >  	struct raw6_sock *rp = raw6_sk(sk);
> >  	int val;
> >
> > -	if (get_user(val, (int __user *)optval))
> > +	if (copy_from_sockptr(&val, optval, sizeof(val)))
> >  		return -EFAULT;
> >
> 
> converting get_user(...)   to  copy_from_sockptr(...) really assumed the optlen
> has been validated to be >= sizeof(int) earlier.
> 
> Which is not always the case, for example here.
> 
> User application can fool us passing optlen=0, and a user pointer of exactly TASK_SIZE-1

Won't the user pointer force copy_from_sockptr() to call
copy_from_user() which will then do access_ok() on the entire
range and so return -EFAULT.

The only problems arise if the kernel code adds an offset to the
user address.
And the later patch added an offset to the copy functions.

	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)

             reply	other threads:[~2020-08-07  9:18 UTC|newest]

Thread overview: 656+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-07  9:18 David Laight [this message]
2020-08-07  9:18 ` [Bridge] [PATCH 25/26] net: pass a sockptr_t into ->setsockopt David Laight
2020-08-07  9:18 ` David Laight
2020-08-07  9:18 ` David Laight
2020-08-07  9:18 ` David Laight
2020-08-07  9:18 ` David Laight
2020-08-07  9:18 ` David Laight
  -- strict thread matches above, loose matches on Subject: below --
2020-08-08 13:54 [MPTCP] " David Laight
2020-08-08 13:54 ` [Bridge] " David Laight
2020-08-08 13:54 ` David Laight
2020-08-08 13:54 ` David Laight
2020-08-08 13:54 ` David Laight
2020-08-08 13:54 ` David Laight
2020-08-08 13:54 ` David Laight
2020-08-07 18:29 [MPTCP] " Eric Dumazet
2020-08-07 18:29 ` [Bridge] " Eric Dumazet
2020-08-07 18:29 ` Eric Dumazet
2020-08-07 18:29 ` Eric Dumazet
2020-08-07 18:29 ` Eric Dumazet
2020-08-07 18:29 ` Eric Dumazet
2020-08-07 18:29 ` Eric Dumazet
2020-08-07  7:21 [MPTCP] " Christoph Hellwig
2020-08-07  7:21 ` [Bridge] " Christoph Hellwig
2020-08-07  7:21 ` Christoph Hellwig
2020-08-07  7:21 ` Christoph Hellwig
2020-08-07  7:21 ` Christoph Hellwig
2020-08-07  7:21 ` Christoph Hellwig
2020-08-07  7:21 ` Christoph Hellwig
2020-08-06 22:21 [MPTCP] " Eric Dumazet
2020-08-06 22:21 ` [Bridge] " Eric Dumazet
2020-08-06 22:21 ` Eric Dumazet
2020-08-06 22:21 ` Eric Dumazet
2020-08-06 22:21 ` Eric Dumazet
2020-07-28  8:17 [MPTCP] Re: [PATCH 12/26] netfilter: switch nf_setsockopt to sockptr_t Jason A. Donenfeld
2020-07-28  8:17 ` [Bridge] " Jason A. Donenfeld
2020-07-28  8:17 ` Jason A. Donenfeld
2020-07-28  8:17 ` Jason A. Donenfeld
2020-07-28  8:17 ` Jason A. Donenfeld
2020-07-28  8:17 ` Jason A. Donenfeld
2020-07-28  8:17 ` Jason A. Donenfeld
2020-07-28  8:17 ` Jason A. Donenfeld
2020-07-28  8:17 ` Jason A. Donenfeld
2020-07-28  8:07 [MPTCP] " David Laight
2020-07-28  8:07 ` [Bridge] " David Laight
2020-07-28  8:07 ` David Laight
2020-07-28  8:07 ` David Laight
2020-07-28  8:07 ` David Laight
2020-07-28  8:07 ` David Laight
2020-07-27 18:22 [MPTCP] Re: [PATCH 19/26] net/ipv6: switch ipv6_flowlabel_opt " Ido Schimmel
2020-07-27 18:22 ` [Bridge] " Ido Schimmel
2020-07-27 18:22 ` Ido Schimmel
2020-07-27 18:22 ` Ido Schimmel
2020-07-27 18:22 ` Ido Schimmel
2020-07-27 18:22 ` Ido Schimmel
2020-07-27 16:23 [MPTCP] Re: [PATCH 12/26] netfilter: switch nf_setsockopt " Christoph Hellwig
2020-07-27 16:23 ` [Bridge] " Christoph Hellwig
2020-07-27 16:23 ` Christoph Hellwig
2020-07-27 16:23 ` Christoph Hellwig
2020-07-27 16:23 ` Christoph Hellwig
2020-07-27 16:23 ` Christoph Hellwig
2020-07-27 16:21 [MPTCP] " Jason A. Donenfeld
2020-07-27 16:21 ` [Bridge] " Jason A. Donenfeld
2020-07-27 16:21 ` Jason A. Donenfeld
2020-07-27 16:21 ` Jason A. Donenfeld
2020-07-27 16:21 ` Jason A. Donenfeld
2020-07-27 16:21 ` Jason A. Donenfeld
2020-07-27 16:16 [MPTCP] " Jason A. Donenfeld
2020-07-27 16:16 ` [Bridge] " Jason A. Donenfeld
2020-07-27 16:16 ` Jason A. Donenfeld
2020-07-27 16:16 ` Jason A. Donenfeld
2020-07-27 16:16 ` Jason A. Donenfeld
2020-07-27 16:16 ` Jason A. Donenfeld
2020-07-27 16:16 ` Jason A. Donenfeld
2020-07-27 16:16 [MPTCP] " Christoph Hellwig
2020-07-27 16:16 ` [Bridge] " Christoph Hellwig
2020-07-27 16:16 ` Christoph Hellwig
2020-07-27 16:16 ` Christoph Hellwig
2020-07-27 16:16 ` Christoph Hellwig
2020-07-27 16:16 ` Christoph Hellwig
2020-07-27 16:16 ` Christoph Hellwig
2020-07-27 16:15 [MPTCP] Re: [PATCH 19/26] net/ipv6: switch ipv6_flowlabel_opt " Christoph Hellwig
2020-07-27 16:15 ` [Bridge] " Christoph Hellwig
2020-07-27 16:15 ` Christoph Hellwig
2020-07-27 16:15 ` Christoph Hellwig
2020-07-27 16:15 ` Christoph Hellwig
2020-07-27 16:15 ` Christoph Hellwig
2020-07-27 16:15 ` Christoph Hellwig
2020-07-27 15:06 [MPTCP] Re: [PATCH 12/26] netfilter: switch nf_setsockopt " Christoph Hellwig
2020-07-27 15:06 ` [Bridge] " Christoph Hellwig
2020-07-27 15:06 ` Christoph Hellwig
2020-07-27 15:06 ` Christoph Hellwig
2020-07-27 15:06 ` Christoph Hellwig
2020-07-27 15:06 ` Christoph Hellwig
2020-07-27 15:06 ` Christoph Hellwig
2020-07-27 15:03 [MPTCP] " Jason A. Donenfeld
2020-07-27 15:03 ` [Bridge] " Jason A. Donenfeld
2020-07-27 15:03 ` Jason A. Donenfeld
2020-07-27 15:03 ` Jason A. Donenfeld
2020-07-27 15:03 ` Jason A. Donenfeld
2020-07-27 15:03 ` Jason A. Donenfeld
2020-07-27 14:09 [MPTCP] Re: get rid of the address_space override in setsockopt v2 David Laight
2020-07-27 14:09 ` [Bridge] " David Laight
2020-07-27 14:09 ` David Laight
2020-07-27 14:09 ` David Laight
2020-07-27 14:09 ` David Laight
2020-07-27 14:09 ` David Laight
2020-07-27 13:33 [MPTCP] Re: [PATCH 19/26] net/ipv6: switch ipv6_flowlabel_opt to sockptr_t Ido Schimmel
2020-07-27 13:33 ` [Bridge] " Ido Schimmel
2020-07-27 13:33 ` Ido Schimmel
2020-07-27 13:33 ` Ido Schimmel
2020-07-27 13:33 ` Ido Schimmel
2020-07-27 13:33 ` Ido Schimmel
2020-07-27 13:24 [MPTCP] " David Laight
2020-07-27 13:24 ` [Bridge] " David Laight
2020-07-27 13:24 ` David Laight
2020-07-27 13:24 ` David Laight
2020-07-27 13:24 ` David Laight
2020-07-27 13:24 ` David Laight
2020-07-27 13:00 [MPTCP] " Christoph Hellwig
2020-07-27 13:00 ` [Bridge] " Christoph Hellwig
2020-07-27 13:00 ` Christoph Hellwig
2020-07-27 13:00 ` Christoph Hellwig
2020-07-27 13:00 ` Christoph Hellwig
2020-07-27 13:00 ` Christoph Hellwig
2020-07-27 13:00 ` Christoph Hellwig
2020-07-27 12:15 [MPTCP] " Ido Schimmel
2020-07-27 12:15 ` [Bridge] " Ido Schimmel
2020-07-27 12:15 ` Ido Schimmel
2020-07-27 12:15 ` Ido Schimmel
2020-07-27 12:15 ` Ido Schimmel
2020-07-27 12:15 ` Ido Schimmel
2020-07-26  7:46 [MPTCP] Re: get rid of the address_space override in setsockopt v2 David Miller
2020-07-26  7:46 ` [Bridge] " David Miller
2020-07-26  7:46 ` David Miller
2020-07-26  7:46 ` David Miller
2020-07-26  7:46 ` David Miller
2020-07-23 16:44 [MPTCP] Re: [PATCH 04/26] net: add a new sockptr_t type Christoph Hellwig
2020-07-23 16:44 ` [Bridge] " Christoph Hellwig
2020-07-23 16:44 ` Christoph Hellwig
2020-07-23 16:44 ` Christoph Hellwig
2020-07-23 16:44 ` Christoph Hellwig
2020-07-23 16:44 ` Christoph Hellwig
2020-07-23 16:44 ` Christoph Hellwig
2020-07-23 16:40 [MPTCP] " Eric Dumazet
2020-07-23 16:40 ` [Bridge] " Eric Dumazet
2020-07-23 16:40 ` Eric Dumazet
2020-07-23 16:40 ` Eric Dumazet
2020-07-23 16:40 ` Eric Dumazet
2020-07-23 16:40 ` Eric Dumazet
2020-07-23 16:40 ` Eric Dumazet
2020-07-23 14:56 [MPTCP] Re: [PATCH 03/26] bpfilter: reject kernel addresses David Laight
2020-07-23 14:56 ` [Bridge] " David Laight
2020-07-23 14:56 ` David Laight
2020-07-23 14:56 ` David Laight
2020-07-23 14:56 ` David Laight
2020-07-23 14:56 ` David Laight
2020-07-23 14:44 [MPTCP] " 'Christoph Hellwig'
2020-07-23 14:44 ` [Bridge] " 'Christoph Hellwig'
2020-07-23 14:44 ` 'Christoph Hellwig'
2020-07-23 14:44 ` 'Christoph Hellwig'
2020-07-23 14:44 ` 'Christoph Hellwig'
2020-07-23 14:44 ` 'Christoph Hellwig'
2020-07-23 14:44 ` 'Christoph Hellwig'
2020-07-23 14:42 [MPTCP] " David Laight
2020-07-23 14:42 ` [Bridge] " David Laight
2020-07-23 14:42 ` David Laight
2020-07-23 14:42 ` David Laight
2020-07-23 14:42 ` David Laight
2020-07-23 14:42 ` David Laight
2020-07-23 11:44 [MPTCP] Re: [PATCH 13/26] bpfilter: switch bpfilter_ip_set_sockopt to sockptr_t 'Christoph Hellwig'
2020-07-23 11:44 ` [Bridge] " 'Christoph Hellwig'
2020-07-23 11:44 ` 'Christoph Hellwig'
2020-07-23 11:44 ` 'Christoph Hellwig'
2020-07-23 11:44 ` 'Christoph Hellwig'
2020-07-23 11:44 ` 'Christoph Hellwig'
2020-07-23 11:44 ` 'Christoph Hellwig'
2020-07-23 11:16 [MPTCP] " David Laight
2020-07-23 11:16 ` [Bridge] " David Laight
2020-07-23 11:16 ` David Laight
2020-07-23 11:16 ` David Laight
2020-07-23 11:16 ` David Laight
2020-07-23 11:16 ` David Laight
2020-07-23 11:14 [MPTCP] Re: [PATCH 01/26] bpfilter: fix up a sparse annotation Luc Van Oostenryck
2020-07-23 11:14 ` [Bridge] " Luc Van Oostenryck
2020-07-23 11:14 ` Luc Van Oostenryck
2020-07-23 11:14 ` Luc Van Oostenryck
2020-07-23 11:14 ` Luc Van Oostenryck
2020-07-23 11:14 ` Luc Van Oostenryck
2020-07-23  8:39 [MPTCP] Re: [PATCH 25/26] net: pass a sockptr_t into ->setsockopt Matthieu Baerts
2020-07-23  8:39 ` [Bridge] [MPTCP] " Matthieu Baerts
2020-07-23  8:39 ` Matthieu Baerts
2020-07-23  8:39 ` Matthieu Baerts
2020-07-23  8:39 ` Matthieu Baerts
2020-07-23  8:39 [MPTCP] Re: [PATCH 08/26] net: switch sock_set_timeout to sockptr_t Matthieu Baerts
2020-07-23  8:39 ` [Bridge] [MPTCP] " Matthieu Baerts
2020-07-23  8:39 ` Matthieu Baerts
2020-07-23  8:39 ` Matthieu Baerts
2020-07-23  8:39 ` Matthieu Baerts
2020-07-23  6:09 [MPTCP] [PATCH 26/26] net: optimize the sockptr_t for unified kernel/user address spaces Christoph Hellwig
2020-07-23  6:09 ` [Bridge] " Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 [MPTCP] [PATCH 25/26] net: pass a sockptr_t into ->setsockopt Christoph Hellwig
2020-07-23  6:09 ` [Bridge] " Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 [MPTCP] [PATCH 24/26] net/tcp: switch do_tcp_setsockopt to sockptr_t Christoph Hellwig
2020-07-23  6:09 ` [Bridge] " Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 [MPTCP] [PATCH 23/26] net/tcp: switch ->md5_parse " Christoph Hellwig
2020-07-23  6:09 ` [Bridge] " Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 [MPTCP] [PATCH 22/26] net/udp: switch udp_lib_setsockopt " Christoph Hellwig
2020-07-23  6:09 ` [Bridge] " Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 [MPTCP] [PATCH 21/26] net/ipv6: switch do_ipv6_setsockopt " Christoph Hellwig
2020-07-23  6:09 ` [Bridge] " Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 [MPTCP] [PATCH 20/26] net/ipv6: factor out a ipv6_set_opt_hdr helper Christoph Hellwig
2020-07-23  6:09 ` [Bridge] " Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 [MPTCP] [PATCH 19/26] net/ipv6: switch ipv6_flowlabel_opt to sockptr_t Christoph Hellwig
2020-07-23  6:09 ` [Bridge] " Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 [MPTCP] [PATCH 18/26] net/ipv6: split up ipv6_flowlabel_opt Christoph Hellwig
2020-07-23  6:09 ` [Bridge] " Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:09 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 17/26] net/ipv6: switch ip6_mroute_setsockopt to sockptr_t Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 16/26] net/ipv4: switch do_ip_setsockopt " Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 15/26] net/ipv4: merge ip_options_get and ip_options_get_from_user Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 14/26] net/ipv4: switch ip_mroute_setsockopt to sockptr_t Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 13/26] bpfilter: switch bpfilter_ip_set_sockopt " Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 12/26] netfilter: switch nf_setsockopt " Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 11/26] netfilter: switch xt_copy_counters " Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 10/26] netfilter: remove the unused user argument to do_update_counters Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 09/26] net/xfrm: switch xfrm_user_policy to sockptr_t Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 08/26] net: switch sock_set_timeout " Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 07/26] " Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 06/26] net: switch sock_setbindtodevice " Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 05/26] net: switch copy_bpf_fprog_from_user " Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 03/26] bpfilter: reject kernel addresses Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 02/26] net/bpfilter: split __bpfilter_process_sockopt Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] [PATCH 01/26] bpfilter: fix up a sparse annotation Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 [MPTCP] get rid of the address_space override in setsockopt v2 Christoph Hellwig
2020-07-23  6:08 ` [Bridge] " Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` Christoph Hellwig
2020-07-23  6:08 ` [MPTCP] [PATCH 04/26] net: add a new sockptr_t type Christoph Hellwig
2020-07-23  6:08   ` [Bridge] " Christoph Hellwig
2020-07-23  6:08   ` Christoph Hellwig
2020-07-23  6:08   ` Christoph Hellwig
2020-07-23  6:08   ` Christoph Hellwig
2020-07-23 15:40   ` Jan Engelhardt
2020-07-23 15:40     ` [Bridge] " Jan Engelhardt
2020-07-23 15:40     ` Jan Engelhardt
2020-07-23 15:40     ` Jan Engelhardt
2020-07-23 15:40     ` Jan Engelhardt
2020-07-23 15:40     ` Jan Engelhardt
2020-07-24 22:43 ` [MPTCP] Re: get rid of the address_space override in setsockopt v2 David Miller
2020-07-24 22:43   ` [Bridge] " David Miller
2020-07-24 22:43   ` David Miller
2020-07-24 22:43   ` David Miller
2020-07-24 22:43   ` David Miller
2020-07-26  7:03   ` [MPTCP] " Christoph Hellwig
2020-07-26  7:03     ` [Bridge] " Christoph Hellwig
2020-07-26  7:03     ` Christoph Hellwig
2020-07-26  7:03     ` Christoph Hellwig
2020-07-26  7:03     ` Christoph Hellwig
2020-07-26  7:08     ` Andreas Schwab
2020-07-26  7:18       ` [Bridge] " Andreas Schwab
2020-07-26  7:08       ` Andreas Schwab
2020-07-26  7:08       ` Andreas Schwab
2020-07-27  9:51   ` [MPTCP] " David Laight
2020-07-27  9:51     ` [Bridge] " David Laight
2020-07-27  9:51     ` David Laight
2020-07-27  9:51     ` David Laight
2020-07-27  9:51     ` David Laight
2020-07-27  9:51     ` David Laight
2020-07-27 13:48     ` Al Viro
2020-07-27 13:48       ` [Bridge] " Al Viro
2020-07-27 13:48       ` Al Viro
2020-07-27 13:48       ` Al Viro
2020-07-27 13:48       ` Al Viro
2020-07-27 13:48       ` Al Viro
2020-07-22 17:09 [MPTCP] Re: get rid of the address_space override in setsockopt Alexei Starovoitov
2020-07-22 17:09 ` [Bridge] " Alexei Starovoitov
2020-07-22 17:09 ` Alexei Starovoitov
2020-07-22 17:09 ` Alexei Starovoitov
2020-07-22 17:09 ` Alexei Starovoitov
2020-07-22 17:09 ` Alexei Starovoitov
2020-07-22  8:26 [MPTCP] Re: [PATCH 24/24] net: pass a sockptr_t into ->setsockopt Matthieu Baerts
2020-07-22  8:26 ` [Bridge] [MPTCP] " Matthieu Baerts
2020-07-22  8:26 ` Matthieu Baerts
2020-07-22  8:26 ` Matthieu Baerts
2020-07-22  8:26 ` Matthieu Baerts
2020-07-22  8:26 ` Matthieu Baerts
2020-07-22  8:21 [MPTCP] Re: get rid of the address_space override in setsockopt David Laight
2020-07-22  8:21 ` [Bridge] " David Laight
2020-07-22  8:21 ` David Laight
2020-07-22  8:21 ` David Laight
2020-07-22  8:21 ` David Laight
2020-07-22  8:21 ` David Laight
2020-07-22  8:07 [MPTCP] " 'Christoph Hellwig'
2020-07-22  8:07 ` [Bridge] " 'Christoph Hellwig'
2020-07-22  8:07 ` 'Christoph Hellwig'
2020-07-22  8:07 ` 'Christoph Hellwig'
2020-07-22  8:07 ` 'Christoph Hellwig'
2020-07-22  8:07 ` 'Christoph Hellwig'
2020-07-22  8:07 ` 'Christoph Hellwig'
2020-07-22  8:06 [MPTCP] " 'Christoph Hellwig'
2020-07-22  8:06 ` [Bridge] " 'Christoph Hellwig'
2020-07-22  8:06 ` 'Christoph Hellwig'
2020-07-22  8:06 ` 'Christoph Hellwig'
2020-07-22  8:06 ` 'Christoph Hellwig'
2020-07-22  8:06 ` 'Christoph Hellwig'
2020-07-22  8:06 ` 'Christoph Hellwig'
2020-07-22  8:01 [MPTCP] Re: [PATCH 12/24] bpfilter: switch bpfilter_ip_set_sockopt to sockptr_t 'Christoph Hellwig'
2020-07-22  8:01 ` [Bridge] " 'Christoph Hellwig'
2020-07-22  8:01 ` 'Christoph Hellwig'
2020-07-22  8:01 ` 'Christoph Hellwig'
2020-07-22  8:01 ` 'Christoph Hellwig'
2020-07-22  8:01 ` 'Christoph Hellwig'
2020-07-22  8:01 ` 'Christoph Hellwig'
2020-07-22  8:00 [MPTCP] " 'Christoph Hellwig'
2020-07-22  8:00 ` [Bridge] " 'Christoph Hellwig'
2020-07-22  8:00 ` 'Christoph Hellwig'
2020-07-22  8:00 ` 'Christoph Hellwig'
2020-07-22  8:00 ` 'Christoph Hellwig'
2020-07-22  8:00 ` 'Christoph Hellwig'
2020-07-22  8:00 ` 'Christoph Hellwig'
2020-07-22  7:56 [MPTCP] Re: get rid of the address_space override in setsockopt Christoph Hellwig
2020-07-22  7:56 ` [Bridge] " Christoph Hellwig
2020-07-22  7:56 ` Christoph Hellwig
2020-07-22  7:56 ` Christoph Hellwig
2020-07-22  7:56 ` Christoph Hellwig
2020-07-22  7:56 ` Christoph Hellwig
2020-07-22  7:56 ` Christoph Hellwig
2020-07-22  7:56 [MPTCP] Re: [PATCH 03/24] net: add a new sockptr_t type Christoph Hellwig
2020-07-22  7:56 ` [Bridge] " Christoph Hellwig
2020-07-22  7:56 ` Christoph Hellwig
2020-07-22  7:56 ` Christoph Hellwig
2020-07-22  7:56 ` Christoph Hellwig
2020-07-22  7:56 ` Christoph Hellwig
2020-07-22  7:56 ` Christoph Hellwig
2020-07-21 10:26 [MPTCP] Re: get rid of the address_space override in setsockopt David Laight
2020-07-21 10:26 ` [Bridge] " David Laight
2020-07-21 10:26 ` David Laight
2020-07-21 10:26 ` David Laight
2020-07-21 10:26 ` David Laight
2020-07-21 10:26 ` David Laight
2020-07-21 10:14 [MPTCP] Re: [PATCH 03/24] net: add a new sockptr_t type David Laight
2020-07-21 10:14 ` [Bridge] " David Laight
2020-07-21 10:14 ` David Laight
2020-07-21 10:14 ` David Laight
2020-07-21 10:14 ` David Laight
2020-07-21 10:14 ` David Laight
2020-07-21  9:55 [MPTCP] " David Laight
2020-07-21  9:55 ` [Bridge] " David Laight
2020-07-21  9:55 ` David Laight
2020-07-21  9:55 ` David Laight
2020-07-21  9:55 ` David Laight
2020-07-21  9:55 ` David Laight
2020-07-21  9:38 [MPTCP] Re: get rid of the address_space override in setsockopt David Laight
2020-07-21  9:38 ` [Bridge] " David Laight
2020-07-21  9:38 ` David Laight
2020-07-21  9:38 ` David Laight
2020-07-21  9:38 ` David Laight
2020-07-21  9:38 ` David Laight
2020-07-21  8:36 [MPTCP] Re: [PATCH 12/24] bpfilter: switch bpfilter_ip_set_sockopt to sockptr_t David Laight
2020-07-21  8:36 ` [Bridge] " David Laight
2020-07-21  8:36 ` David Laight
2020-07-21  8:36 ` David Laight
2020-07-21  8:36 ` David Laight
2020-07-21  8:36 ` David Laight
2020-07-21  5:28 [MPTCP] Re: [PATCH 02/24] bpfilter: fix up a sparse annotation Al Viro
2020-07-21  5:28 ` [Bridge] " Al Viro
2020-07-21  5:28 ` Al Viro
2020-07-21  5:28 ` Al Viro
2020-07-21  5:28 ` Al Viro
2020-07-21  5:28 ` Al Viro
2020-07-21  5:23 [MPTCP] " Christoph Hellwig
2020-07-21  5:23 ` [Bridge] " Christoph Hellwig
2020-07-21  5:23 ` Christoph Hellwig
2020-07-21  5:23 ` Christoph Hellwig
2020-07-21  5:23 ` Christoph Hellwig
2020-07-21  5:23 ` Christoph Hellwig
2020-07-21  5:23 ` Christoph Hellwig
2020-07-21  2:40 [MPTCP] " Luc Van Oostenryck
2020-07-21  2:40 ` [Bridge] " Luc Van Oostenryck
2020-07-21  2:40 ` Luc Van Oostenryck
2020-07-21  2:40 ` Luc Van Oostenryck
2020-07-21  2:40 ` Luc Van Oostenryck
2020-07-21  2:40 ` Luc Van Oostenryck
2020-07-20 23:20 [MPTCP] Re: [PATCH 24/24] net: pass a sockptr_t into ->setsockopt David Miller
2020-07-20 23:20 ` [Bridge] " David Miller
2020-07-20 23:20 ` David Miller
2020-07-20 23:20 ` David Miller
2020-07-20 23:20 ` David Miller
2020-07-20 23:20 ` David Miller
2020-07-20 20:47 [MPTCP] Re: get rid of the address_space override in setsockopt Alexei Starovoitov
2020-07-20 20:47 ` [Bridge] " Alexei Starovoitov
2020-07-20 20:47 ` Alexei Starovoitov
2020-07-20 20:47 ` Alexei Starovoitov
2020-07-20 20:47 ` Alexei Starovoitov
2020-07-20 20:47 ` Alexei Starovoitov
2020-07-20 17:55 [MPTCP] Re: [PATCH 03/24] net: add a new sockptr_t type Eric Biggers
2020-07-20 17:55 ` [Bridge] " Eric Biggers
2020-07-20 17:55 ` Eric Biggers
2020-07-20 17:55 ` Eric Biggers
2020-07-20 17:55 ` Eric Biggers
2020-07-20 17:55 ` Eric Biggers
2020-07-20 17:43 [MPTCP] Re: get rid of the address_space override in setsockopt Christoph Hellwig
2020-07-20 17:43 ` [Bridge] " Christoph Hellwig
2020-07-20 17:43 ` Christoph Hellwig
2020-07-20 17:43 ` Christoph Hellwig
2020-07-20 17:43 ` Christoph Hellwig
2020-07-20 17:43 ` Christoph Hellwig
2020-07-20 17:43 ` Christoph Hellwig
2020-07-20 17:43 [MPTCP] Re: [PATCH 03/24] net: add a new sockptr_t type Christoph Hellwig
2020-07-20 17:43 ` [Bridge] " Christoph Hellwig
2020-07-20 17:43 ` Christoph Hellwig
2020-07-20 17:43 ` Christoph Hellwig
2020-07-20 17:43 ` Christoph Hellwig
2020-07-20 17:43 ` Christoph Hellwig
2020-07-20 17:43 ` Christoph Hellwig
2020-07-20 16:38 [MPTCP] Re: get rid of the address_space override in setsockopt Eric Biggers
2020-07-20 16:38 ` [Bridge] " Eric Biggers
2020-07-20 16:38 ` Eric Biggers
2020-07-20 16:38 ` Eric Biggers
2020-07-20 16:38 ` Eric Biggers
2020-07-20 16:38 ` Eric Biggers
2020-07-20 16:37 [MPTCP] Re: [PATCH 03/24] net: add a new sockptr_t type Eric Biggers
2020-07-20 16:37 ` [Bridge] " Eric Biggers
2020-07-20 16:37 ` Eric Biggers
2020-07-20 16:37 ` Eric Biggers
2020-07-20 16:37 ` Eric Biggers
2020-07-20 16:37 ` Eric Biggers
2020-07-20 14:19 [MPTCP] Re: [PATCH 24/24] net: pass a sockptr_t into ->setsockopt Stefan Schmidt
2020-07-20 14:19 ` [Bridge] " Stefan Schmidt
2020-07-20 14:19 ` Stefan Schmidt
2020-07-20 14:19 ` Stefan Schmidt
2020-07-20 14:19 ` Stefan Schmidt
2020-07-20 12:47 [MPTCP] " Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 23/24] net/tcp: switch do_tcp_setsockopt to sockptr_t Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 22/24] net/tcp: switch ->md5_parse " Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 21/24] net/udp: switch udp_lib_setsockopt " Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 20/24] net/ipv6: switch do_ipv6_setsockopt " Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 19/24] net/ipv6: factor out a ipv6_set_opt_hdr helper Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 18/24] net/ipv6: switch ipv6_flowlabel_opt to sockptr_t Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 17/24] net/ipv6: split up ipv6_flowlabel_opt Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 16/24] net/ipv6: switch ip6_mroute_setsockopt to sockptr_t Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 15/24] net/ipv4: switch do_ip_setsockopt " Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 14/24] net/ipv4: merge ip_options_get and ip_options_get_from_user Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 13/24] net/ipv4: switch ip_mroute_setsockopt to sockptr_t Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 12/24] bpfilter: switch bpfilter_ip_set_sockopt " Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 11/24] netfilter: switch nf_setsockopt " Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 10/24] netfilter: switch xt_copy_counters " Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 09/24] netfilter: remove the unused user argument to do_update_counters Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 08/24] net/xfrm: switch xfrm_user_policy to sockptr_t Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 07/24] net: switch sock_set_timeout " Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 06/24] " Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 05/24] net: switch sock_setbindtodevice " Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 04/24] net: switch copy_bpf_fprog_from_user " Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 03/24] net: add a new sockptr_t type Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 02/24] bpfilter: fix up a sparse annotation Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] [PATCH 01/24] bpfilter: reject kernel addresses Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 [MPTCP] get rid of the address_space override in setsockopt Christoph Hellwig
2020-07-20 12:47 ` [Bridge] " Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig
2020-07-20 12:47 ` Christoph Hellwig

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