Re: [ANNOUNCE] WireGuard Snapshot `0.0.20191205` Available
On Wed, Dec 11, 2019 at 8:13 PM Jordan Glover wrote: > > On Friday, December 6, 2019 5:35 PM, Jason A. Donenfeld > wrote: > > > Looks like an arch problem or a libnftnl problem. I've made a minimal > > reproducer: > > > > printf 'filter\nCOMMIT\nraw\nCOMMIT\n*mangle\nCOMMIT\n' | sudo > > iptables-nft-restore -n > > > > I filed a bug report on Arch: https://bugs.archlinux.org/task/64755 > > You can follow up with them. > > I tried to compile myself iptables 1.8.4 which is latest upstream version > and have good and bad news: > > The good one is your minimal reproducer no longer causes segfault. > > The bad one is wg-quick still does: > > wg-quick[2325]: [#] iptables-restore -n > audit[2326]: ANOM_ABEND auid=4294967295 uid=0 gid=0 ses=4294967295 > subj==unconfined pid=2326 comm="iptables-restor" > exe="/usr/bin/xtables-nft-multi" sig=11 res=1 > wg-quick[2325]: /usr/bin/wg-quick: line 29: 2326 Segmentation fault > (core dumped) "$@" > kernel: show_signal_msg: 40 callbacks suppressed > kernel: iptables-restor[2326]: segfault at 0 ip 69bb4df13cc9 sp > 716fcc5b9b30 error 4 in libnftnl.so.11.2.0[69bb4df11000+18000] > kernel: Code: 15 5c 20 02 00 48 85 c0 74 07 48 89 00 48 89 40 08 48 83 c4 08 > c3 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 48 83 ec 08 <48> 8b 3f 48 > 8b 1f 48 39 fd 74 2f 0f 1f 40 00 48 8b 47 08 48 89 43 > > Maybe upstream found and fixed some regression but still missed > the other one. Can you craft a new minimal reproducer? ___ WireGuard mailing list WireGuard@lists.zx2c4.com https://lists.zx2c4.com/mailman/listinfo/wireguard
Re: [ANNOUNCE] WireGuard Snapshot `0.0.20191205` Available
On Friday, December 6, 2019 5:35 PM, Jason A. Donenfeld wrote: > Looks like an arch problem or a libnftnl problem. I've made a minimal > reproducer: > > printf 'filter\nCOMMIT\nraw\nCOMMIT\n*mangle\nCOMMIT\n' | sudo > iptables-nft-restore -n > > I filed a bug report on Arch: https://bugs.archlinux.org/task/64755 > You can follow up with them. I tried to compile myself iptables 1.8.4 which is latest upstream version and have good and bad news: The good one is your minimal reproducer no longer causes segfault. The bad one is wg-quick still does: wg-quick[2325]: [#] iptables-restore -n audit[2326]: ANOM_ABEND auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=2326 comm="iptables-restor" exe="/usr/bin/xtables-nft-multi" sig=11 res=1 wg-quick[2325]: /usr/bin/wg-quick: line 29: 2326 Segmentation fault (core dumped) "$@" kernel: show_signal_msg: 40 callbacks suppressed kernel: iptables-restor[2326]: segfault at 0 ip 69bb4df13cc9 sp 716fcc5b9b30 error 4 in libnftnl.so.11.2.0[69bb4df11000+18000] kernel: Code: 15 5c 20 02 00 48 85 c0 74 07 48 89 00 48 89 40 08 48 83 c4 08 c3 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 48 83 ec 08 <48> 8b 3f 48 8b 1f 48 39 fd 74 2f 0f 1f 40 00 48 8b 47 08 48 89 43 Maybe upstream found and fixed some regression but still missed the other one. Jordan ___ WireGuard mailing list WireGuard@lists.zx2c4.com https://lists.zx2c4.com/mailman/listinfo/wireguard
Re: [ANNOUNCE] WireGuard Snapshot `0.0.20191205` Available
Looks like an arch problem or a libnftnl problem. I've made a minimal reproducer: printf '*filter\nCOMMIT\n*raw\nCOMMIT\n*mangle\nCOMMIT\n' | sudo iptables-nft-restore -n I filed a bug report on Arch: https://bugs.archlinux.org/task/64755 You can follow up with them. ___ WireGuard mailing list WireGuard@lists.zx2c4.com https://lists.zx2c4.com/mailman/listinfo/wireguard
Re: [ANNOUNCE] WireGuard Snapshot `0.0.20191205` Available
On Friday, December 6, 2019 3:52 PM, Jason A. Donenfeld wrote: > On Fri, Dec 6, 2019 at 4:36 PM Jordan Glover > golden_mille...@protonmail.ch wrote: > > > iptables is from Arch Linux iptables-nft package: > > $ iptables --version > > iptables v1.8.3 (nf_tables) > > Does the segfault happen with the latest version in the git repo? > > https://git.zx2c4.com/WireGuard/tree/src/tools/wg-quick/linux.bash Yes, it still segfaults in the same way as before: systemd[1]: Stopping WireGuard via wg-quick(8) for wg0... wg-quick[6528]: [#] iptables -D OUTPUT -o wg0 -j ACCEPT wg-quick[6528]: [#] ip -4 rule delete table 51820 wg-quick[6528]: [#] ip -4 rule delete table main suppress_prefixlength 0 wg-quick[6528]: [#] ip link delete dev wg0 wg-quick[6528]: [#] resolvconf -d wg0 -f wg-quick[6620]: [#] iptables-restore -n audit[6621]: ANOM_ABEND auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=6621 comm="iptables-restor" exe="/usr/bin/xtables-nft-multi" sig=11 res=1 wg-quick[6620]: /usr/bin/wg-quick: line 29: 6621 Segmentation fault (core dumped) "$@" kernel: iptables-restor[6621]: segfault at 0 ip 6e4350496cc9 sp 7bfae0479dd0 error 4 in libnftnl.so.11.2.0[6e4350494000+18000] kernel: Code: 15 5c 20 02 00 48 85 c0 74 07 48 89 00 48 89 40 08 48 83 c4 08 c3 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 48 83 ec 08 <48> 8b 3f 48 8b 1f 48 39 fd 74 2f 0f 1f 40 00 48 8b 47 08 48 89 43 systemd[1]: wg-quick@wg0.service: Succeeded. systemd[1]: Stopped WireGuard via wg-quick(8) for wg0. The "RTNETLINK answers: Address family not supported by protocol" messages which were caused by lack of ipv6 support in kernel (AKA weird kernels) was silenced but I think they weren't related to this problem. Jordan ___ WireGuard mailing list WireGuard@lists.zx2c4.com https://lists.zx2c4.com/mailman/listinfo/wireguard
Re: [ANNOUNCE] WireGuard Snapshot `0.0.20191205` Available
On Fri, Dec 6, 2019 at 4:36 PM Jordan Glover wrote: > iptables is from Arch Linux iptables-nft package: > > $ iptables --version > iptables v1.8.3 (nf_tables) Does the segfault happen with the latest version in the git repo? https://git.zx2c4.com/WireGuard/tree/src/tools/wg-quick/linux.bash ___ WireGuard mailing list WireGuard@lists.zx2c4.com https://lists.zx2c4.com/mailman/listinfo/wireguard
Re: [ANNOUNCE] WireGuard Snapshot `0.0.20191205` Available
On Friday, December 6, 2019 3:20 PM, Jason A. Donenfeld wrote: > On Fri, Dec 6, 2019 at 4:11 PM Jordan Glover > golden_mille...@protonmail.ch wrote: > > > Hi, this release cause coredump on wg-quick down action: > > systemd[1]: Stopping WireGuard via wg-quick(8) for wg0... > > wg-quick[2241]: [#] iptables -D OUTPUT -o wg0 -j ACCEPT > > wg-quick[2241]: [#] ip -4 rule delete table 51820 > > wg-quick[2241]: [#] ip -4 rule delete table main suppress_prefixlength 0 > > wg-quick[2257]: RTNETLINK answers: Address family not supported by protocol > > wg-quick[2257]: Dump terminated > > wg-quick[2258]: RTNETLINK answers: Address family not supported by protocol > > wg-quick[2258]: Dump terminated > > wg-quick[2241]: [#] ip link delete dev wg0 > > wg-quick[2241]: [#] resolvconf -d wg0 -f > > wg-quick[2315]: [#] iptables-restore -n > > audit[2316]: ANOM_ABEND auid=4294967295 uid=0 gid=0 ses=4294967295 > > subj==unconfined pid=2316 comm="iptables-restor" > > exe="/usr/bin/xtables-nft-multi" sig=11 res=1 > > wg-quick[2315]: /usr/bin/wg-quick: line 29: 2316 Segmentation fault (core > > dumped) "$@" > > kernel: show_signal_msg: 40 callbacks suppressed > > kernel: iptables-restor[2316]: segfault at 0 ip 64515b66fcc9 sp > > 7e6bbcbfb720 error 4 in libnftnl.so.11.2.0[64515b66d000+18000] > > kernel: Code: 15 5c 20 02 00 48 85 c0 74 07 48 89 00 48 89 40 08 48 83 c4 > > 08 c3 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 48 83 ec 08 <48> 8b > > 3f 48 8b 1f 48 39 fd 74 2f 0f 1f 40 00 48 8b 47 08 48 89 43 > > systemd[1]: wg-quick@wg0.service: Succeeded. > > systemd[1]: Stopped WireGuard via wg-quick(8) for wg0. > > What distro's iptables? iptables is from Arch Linux iptables-nft package: $ iptables --version iptables v1.8.3 (nf_tables) Jordan ___ WireGuard mailing list WireGuard@lists.zx2c4.com https://lists.zx2c4.com/mailman/listinfo/wireguard
Re: [ANNOUNCE] WireGuard Snapshot `0.0.20191205` Available
On Fri, Dec 6, 2019 at 4:11 PM Jordan Glover
wrote:
>
> On Thursday, December 5, 2019 10:55 AM, Jason A. Donenfeld
> wrote:
>
> > Hello,
> >
> > A new snapshot, `0.0.20191205`, has been tagged in the git repository.
> >
> > Please note that this snapshot is a snapshot rather than a final
> > release that is considered secure and bug-free. WireGuard is generally
> > thought to be fairly stable, and most likely will not crash your
> > computer (though it may). However, as this is a snapshot, it comes
> > with no guarantees; it is not applicable for CVEs.
> >
> > With all that said, if you'd like to test this snapshot out, there are a
> > few relevant changes.
> >
> > == Changes ==
> >
> > - wg-quick: linux: suppress error when finding unused table
> >
> > This fixes a spurious warning messages seen with recent versions of
> > iproute2
> > and kernels.
> >
> > - wg-quick: linux: ensure postdown hooks execute
> > - wg-quick: linux: have remove_iptables return true
> > - wg-quick: linux: iptables-* -w is not widely supported
> >
> > Adding in iptables had some hiccups. For the record, I'm very unhappy
> > about
> > having to put any firewalling code into wg-quick(8). We'll of course
> > need to
> > support nftables too at some point if this continues. I'm investigating
> > with
> > upstream the possibility of adding a sysctl to patch the issue that
> > iptables
> > is handling now, so hopefully at somepoint down the line we'll be able
> > to shed
> > this dependency once again.
> >
> > - send: use kfree_skb_list
> > - device: prepare skb_list_walk_safe for upstreaming
> > - send: avoid touching skb->{next,prev} directly
> >
> > Suggestions from LKML.
> >
> > - ipc: make sure userspace communication frees wgdevice
> >
> > Free things properly on error paths.
> >
> > This snapshot contains commits from: Jason A. Donenfeld.
> >
> > As always, the source is available at https://git.zx2c4.com/WireGuard/
> > and
> > information about the project is available at
> > https://www.wireguard.com/ .
> >
> > This snapshot is available in compressed tarball form here:
> > https://git.zx2c4.com/WireGuard/snapshot/WireGuard-0.0.20191205.tar.xz
> > SHA2-256:
> > BLAKE2b-256:
> >
> > A PGP signature of that file decompressed is available here:
> > https://git.zx2c4.com/WireGuard/snapshot/WireGuard-0.0.20191205.tar.asc
> > Signing key: AB9942E6D4A4CFC3412620A749FC7012A5DE03AE
> >
> > If you're a snapshot package maintainer, please bump your package
> > version. If
> > you're a user, the WireGuard team welcomes any and all feedback on this
> > latest
> > snapshot.
> >
> > Finally, WireGuard development thrives on donations. By popular demand,
> > we
> > have a webpage for this: https://www.wireguard.com/donations/
> >
> > Thank you,
> > Jason Donenfeld
> >
>
> Hi, this release cause coredump on wg-quick down action:
>
> systemd[1]: Stopping WireGuard via wg-quick(8) for wg0...
> wg-quick[2241]: [#] iptables -D OUTPUT -o wg0 -j ACCEPT
> wg-quick[2241]: [#] ip -4 rule delete table 51820
> wg-quick[2241]: [#] ip -4 rule delete table main suppress_prefixlength 0
> wg-quick[2257]: RTNETLINK answers: Address family not supported by protocol
> wg-quick[2257]: Dump terminated
> wg-quick[2258]: RTNETLINK answers: Address family not supported by protocol
> wg-quick[2258]: Dump terminated
> wg-quick[2241]: [#] ip link delete dev wg0
> wg-quick[2241]: [#] resolvconf -d wg0 -f
> wg-quick[2315]: [#] iptables-restore -n
> audit[2316]: ANOM_ABEND auid=4294967295 uid=0 gid=0 ses=4294967295
> subj==unconfined pid=2316 comm="iptables-restor"
> exe="/usr/bin/xtables-nft-multi" sig=11 res=1
> wg-quick[2315]: /usr/bin/wg-quick: line 29: 2316 Segmentation fault
> (core dumped) "$@"
> kernel: show_signal_msg: 40 callbacks suppressed
> kernel: iptables-restor[2316]: segfault at 0 ip 64515b66fcc9 sp
> 7e6bbcbfb720 error 4 in libnftnl.so.11.2.0[64515b66d000+18000]
> kernel: Code: 15 5c 20 02 00 48 85 c0 74 07 48 89 00 48 89 40 08 48 83 c4 08
> c3 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 48 83 ec 08 <48> 8b 3f 48
> 8b 1f 48 39 fd 74 2f 0f 1f 40 00 48 8b 47 08 48 89 43
> systemd[1]: wg-quick@wg0.service: Succeeded.
> systemd[1]: Stopped WireGuard via wg-quick(8) for wg0.
What distro's iptables?
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Re: [ANNOUNCE] WireGuard Snapshot `0.0.20191205` Available
On Thursday, December 5, 2019 10:55 AM, Jason A. Donenfeld
wrote:
> Hello,
>
> A new snapshot, `0.0.20191205`, has been tagged in the git repository.
>
> Please note that this snapshot is a snapshot rather than a final
> release that is considered secure and bug-free. WireGuard is generally
> thought to be fairly stable, and most likely will not crash your
> computer (though it may). However, as this is a snapshot, it comes
> with no guarantees; it is not applicable for CVEs.
>
> With all that said, if you'd like to test this snapshot out, there are a
> few relevant changes.
>
> == Changes ==
>
> - wg-quick: linux: suppress error when finding unused table
>
> This fixes a spurious warning messages seen with recent versions of
> iproute2
> and kernels.
>
> - wg-quick: linux: ensure postdown hooks execute
> - wg-quick: linux: have remove_iptables return true
> - wg-quick: linux: iptables-* -w is not widely supported
>
> Adding in iptables had some hiccups. For the record, I'm very unhappy
> about
> having to put any firewalling code into wg-quick(8). We'll of course need
> to
> support nftables too at some point if this continues. I'm investigating
> with
> upstream the possibility of adding a sysctl to patch the issue that
> iptables
> is handling now, so hopefully at somepoint down the line we'll be able to
> shed
> this dependency once again.
>
> - send: use kfree_skb_list
> - device: prepare skb_list_walk_safe for upstreaming
> - send: avoid touching skb->{next,prev} directly
>
> Suggestions from LKML.
>
> - ipc: make sure userspace communication frees wgdevice
>
> Free things properly on error paths.
>
> This snapshot contains commits from: Jason A. Donenfeld.
>
> As always, the source is available at https://git.zx2c4.com/WireGuard/ and
> information about the project is available at https://www.wireguard.com/ .
>
> This snapshot is available in compressed tarball form here:
> https://git.zx2c4.com/WireGuard/snapshot/WireGuard-0.0.20191205.tar.xz
> SHA2-256:
> BLAKE2b-256:
>
> A PGP signature of that file decompressed is available here:
> https://git.zx2c4.com/WireGuard/snapshot/WireGuard-0.0.20191205.tar.asc
> Signing key: AB9942E6D4A4CFC3412620A749FC7012A5DE03AE
>
> If you're a snapshot package maintainer, please bump your package
> version. If
> you're a user, the WireGuard team welcomes any and all feedback on this
> latest
> snapshot.
>
> Finally, WireGuard development thrives on donations. By popular demand, we
> have a webpage for this: https://www.wireguard.com/donations/
>
> Thank you,
> Jason Donenfeld
>
Hi, this release cause coredump on wg-quick down action:
systemd[1]: Stopping WireGuard via wg-quick(8) for wg0...
wg-quick[2241]: [#] iptables -D OUTPUT -o wg0 -j ACCEPT
wg-quick[2241]: [#] ip -4 rule delete table 51820
wg-quick[2241]: [#] ip -4 rule delete table main suppress_prefixlength 0
wg-quick[2257]: RTNETLINK answers: Address family not supported by protocol
wg-quick[2257]: Dump terminated
wg-quick[2258]: RTNETLINK answers: Address family not supported by protocol
wg-quick[2258]: Dump terminated
wg-quick[2241]: [#] ip link delete dev wg0
wg-quick[2241]: [#] resolvconf -d wg0 -f
wg-quick[2315]: [#] iptables-restore -n
audit[2316]: ANOM_ABEND auid=4294967295 uid=0 gid=0 ses=4294967295
subj==unconfined pid=2316 comm="iptables-restor"
exe="/usr/bin/xtables-nft-multi" sig=11 res=1
wg-quick[2315]: /usr/bin/wg-quick: line 29: 2316 Segmentation fault (core
dumped) "$@"
kernel: show_signal_msg: 40 callbacks suppressed
kernel: iptables-restor[2316]: segfault at 0 ip 64515b66fcc9 sp
7e6bbcbfb720 error 4 in libnftnl.so.11.2.0[64515b66d000+18000]
kernel: Code: 15 5c 20 02 00 48 85 c0 74 07 48 89 00 48 89 40 08 48 83 c4 08 c3
66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 48 83 ec 08 <48> 8b 3f 48 8b 1f
48 39 fd 74 2f 0f 1f 40 00 48 8b 47 08 48 89 43
systemd[1]: wg-quick@wg0.service: Succeeded.
systemd[1]: Stopped WireGuard via wg-quick(8) for wg0.
I saw some iptables related fix in git[1] but I don't know if
it's related to similar issue.
[1]
https://git.zx2c4.com/WireGuard/commit/?id=884b6e36e6af0c6fa5b9467ccc8c2e2e4477bc95
Jordan
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[ANNOUNCE] WireGuard Snapshot `0.0.20191205` Available
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Hello,
A new snapshot, `0.0.20191205`, has been tagged in the git repository.
Please note that this snapshot is a snapshot rather than a final
release that is considered secure and bug-free. WireGuard is generally
thought to be fairly stable, and most likely will not crash your
computer (though it may). However, as this is a snapshot, it comes
with no guarantees; it is not applicable for CVEs.
With all that said, if you'd like to test this snapshot out, there are a
few relevant changes.
== Changes ==
* wg-quick: linux: suppress error when finding unused table
This fixes a spurious warning messages seen with recent versions of iproute2
and kernels.
* wg-quick: linux: ensure postdown hooks execute
* wg-quick: linux: have remove_iptables return true
* wg-quick: linux: iptables-* -w is not widely supported
Adding in iptables had some hiccups. For the record, I'm very unhappy about
having to put any firewalling code into wg-quick(8). We'll of course need to
support nftables too at some point if this continues. I'm investigating with
upstream the possibility of adding a sysctl to patch the issue that iptables
is handling now, so hopefully at somepoint down the line we'll be able to shed
this dependency once again.
* send: use kfree_skb_list
* device: prepare skb_list_walk_safe for upstreaming
* send: avoid touching skb->{next,prev} directly
Suggestions from LKML.
* ipc: make sure userspace communication frees wgdevice
Free things properly on error paths.
This snapshot contains commits from: Jason A. Donenfeld.
As always, the source is available at https://git.zx2c4.com/WireGuard/ and
information about the project is available at https://www.wireguard.com/ .
This snapshot is available in compressed tarball form here:
https://git.zx2c4.com/WireGuard/snapshot/WireGuard-0.0.20191205.tar.xz
SHA2-256: 4de4c0efa35f8eb170c27a0bc8977e5c0634b8e19c03915d03218cc88bb0adbe
BLAKE2b-256: 3cf4f58e1e4982ea3f25f287ae035ac2cca86007ceeefd124003982bba800bd4
A PGP signature of that file decompressed is available here:
https://git.zx2c4.com/WireGuard/snapshot/WireGuard-0.0.20191205.tar.asc
Signing key: AB9942E6D4A4CFC3412620A749FC7012A5DE03AE
If you're a snapshot package maintainer, please bump your package version. If
you're a user, the WireGuard team welcomes any and all feedback on this latest
snapshot.
Finally, WireGuard development thrives on donations. By popular demand, we
have a webpage for this: https://www.wireguard.com/donations/
Thank you,
Jason Donenfeld
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[ANNOUNCE] WireGuard Snapshot `0.0.20191205` Available
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Hello,
A new snapshot, `0.0.20191205`, has been tagged in the git repository.
Please note that this snapshot is a snapshot rather than a final
release that is considered secure and bug-free. WireGuard is generally
thought to be fairly stable, and most likely will not crash your
computer (though it may). However, as this is a snapshot, it comes
with no guarantees; it is not applicable for CVEs.
With all that said, if you'd like to test this snapshot out, there are a
few relevant changes.
== Changes ==
* wg-quick: linux: suppress error when finding unused table
This fixes a spurious warning messages seen with recent versions of iproute2
and kernels.
* wg-quick: linux: ensure postdown hooks execute
* wg-quick: linux: have remove_iptables return true
* wg-quick: linux: iptables-* -w is not widely supported
Adding in iptables had some hiccups. For the record, I'm very unhappy about
having to put any firewalling code into wg-quick(8). We'll of course need to
support nftables too at some point if this continues. I'm investigating with
upstream the possibility of adding a sysctl to patch the issue that iptables
is handling now, so hopefully at somepoint down the line we'll be able to shed
this dependency once again.
* send: use kfree_skb_list
* device: prepare skb_list_walk_safe for upstreaming
* send: avoid touching skb->{next,prev} directly
Suggestions from LKML.
* ipc: make sure userspace communication frees wgdevice
Free things properly on error paths.
This snapshot contains commits from: Jason A. Donenfeld.
As always, the source is available at https://git.zx2c4.com/WireGuard/ and
information about the project is available at https://www.wireguard.com/ .
This snapshot is available in compressed tarball form here:
https://git.zx2c4.com/WireGuard/snapshot/WireGuard-0.0.20191205.tar.xz
SHA2-256:
BLAKE2b-256:
A PGP signature of that file decompressed is available here:
https://git.zx2c4.com/WireGuard/snapshot/WireGuard-0.0.20191205.tar.asc
Signing key: AB9942E6D4A4CFC3412620A749FC7012A5DE03AE
If you're a snapshot package maintainer, please bump your package version. If
you're a user, the WireGuard team welcomes any and all feedback on this latest
snapshot.
Finally, WireGuard development thrives on donations. By popular demand, we
have a webpage for this: https://www.wireguard.com/donations/
Thank you,
Jason Donenfeld
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