search for: net_namespace

...bsence of namescope started >> with ':' can rightly be used as the namescope for >> the kernel-only IFF_HIDDEN netdevs. >> >> Signed-off-by: Si-Wei Liu <si-wei.liu at oracle.com> >> --- >> include/linux/netdevice.h | 12 ++ >> include/net/net_namespace.h | 2 + >> net/core/dev.c | 281 ++++++++++++++++++++++++++++++++++++++------ >> net/core/net_namespace.c | 1 + >> 4 files changed, 263 insertions(+), 33 deletions(-) >> > >There are other use cases that want to hide a device from userspace. I W...

...nsertion(+), 8 deletions(-) diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index 7df2217..0b86e46 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -17,7 +17,6 @@ #include <linux/fs.h> #include <linux/uio.h> -#include <net/ipv6.h> #include <net/net_namespace.h> #include <net/rtnetlink.h> #include <net/sock.h> @@ -589,8 +588,6 @@ static int macvtap_skb_from_vnet_hdr(struct macvtap_queue *q, pr_warn_once("macvtap: %s: using disabled UFO feature; please fix this program\n", current->comm); gso_type = SKB_GSO...

...nsertion(+), 8 deletions(-) diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index 7df2217..0b86e46 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -17,7 +17,6 @@ #include <linux/fs.h> #include <linux/uio.h> -#include <net/ipv6.h> #include <net/net_namespace.h> #include <net/rtnetlink.h> #include <net/sock.h> @@ -589,8 +588,6 @@ static int macvtap_skb_from_vnet_hdr(struct macvtap_queue *q, pr_warn_once("macvtap: %s: using disabled UFO feature; please fix this program\n", current->comm); gso_type = SKB_GSO...

.../kasan/report.c:306 [inline] print_report+0x156/0x459 mm/kasan/report.c:417 kasan_report+0xc0/0xf0 mm/kasan/report.c:517 __ebt_unregister_table+0xcc5/0xce0 net/bridge/netfilter/ebtables.c:1168 ebt_unregister_table+0x35/0x40 net/bridge/netfilter/ebtables.c:1372 ops_exit_list+0xb0/0x170 net/core/net_namespace.c:169 cleanup_net+0x4ee/0x9d0 net/core/net_namespace.c:613 process_one_work+0x9ba/0x1720 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> Memory state around...

...absence of namescope started >> with ':' can rightly be used as the namescope for >> the kernel-only IFF_HIDDEN netdevs. >> >> Signed-off-by: Si-Wei Liu <si-wei.liu at oracle.com> >> --- >> include/linux/netdevice.h | 12 ++ >> include/net/net_namespace.h | 2 + >> net/core/dev.c | 281 ++++++++++++++++++++++++++++++++++++++------ >> net/core/net_namespace.c | 1 + >> 4 files changed, 263 insertions(+), 33 deletions(-) >> > > There are other use cases that want to hide a device from userspace. Can...

...- arch/s390/appldata/appldata_base.c | 2 +- drivers/net/vrf.c | 3 +- fs/proc/proc_sysctl.c | 90 +++++++++++++++++---------------- include/linux/sysctl.h | 31 +++++++++--- include/net/ipv6.h | 2 + include/net/net_namespace.h | 10 ++-- ipc/ipc_sysctl.c | 4 +- ipc/mq_sysctl.c | 4 +- kernel/ucount.c | 5 +- net/ax25/sysctl_net_ax25.c | 3 +- net/bridge/br_netfilter_hooks.c | 3 +- net/core/neighbour.c...

...git/master > compiler: gcc (GCC) 7.1.1 20170620 > .config is attached > Raw console output is attached. > C reproducer is attached > syzkaller reproducer is attached. See https://goo.gl/kgGztJ > for information about syzkaller reproducers > > > IP: read_pnet include/net/net_namespace.h:269 [inline] > IP: sock_net include/net/sock.h:2299 [inline] > IP: vsock_diag_dump+0x290/0xa80 net/vmw_vsock/diag.c:87 Feel free to ignore my previous reply, Cong Wang <xiyou.wangcong at gmail.com> has already found the root cause. Thank you! Stefan

....1.14.el5 kernel sources. Has anyone worked on this? I have tried simply overwriting the drivers/net/wan directory with corresponding directory from more recent (2.6.25.20, 2.6.30) vanilla kernel source, but I get errors: CC [M] drivers/net/wan/hdlc.o drivers/net/wan/hdlc.c:39:31: error: net/net_namespace.h: No such file or directory drivers/net/wan/hdlc.c: In function ?hdlc_rcv?: drivers/net/wan/hdlc.c:69: warning: initialization from incompatible pointer type drivers/net/wan/hdlc.c:71: error: ?struct net_device? has no member named ?nd_net? drivers/net/wan/hdlc.c:71: error: ?init_net? undeclared (...

...he: 32K, L1 D cache: 32K [ 0.872333] CPU: L2 cache: 6144K [ 0.872340] CPU: Physical Processor ID: 1 [ 0.872344] CPU: Processor Core ID: 3 [ 0.872356] SMP alternatives: switching to UP code [ 0.879420] Freeing SMP alternatives: 21k freed [ 0.879535] Brought up 1 CPUs [ 0.881865] net_namespace: 1224 bytes [ 0.882025] NET: Registered protocol family 16 [ 0.883053] Brought up 1 CPUs [ 0.883068] PCI: Fatal: No config space access function found [ 0.883075] PCI: setting up Xen PCI frontend stub [ 0.883750] ACPI: Interpreter disabled. [ 0.883758] Linux Plug and Play Support...

commit 3d0ad09412ffe00c9afa201d01effdb6023d09b4 Author: Ben Hutchings <ben at decadent.org.uk> Date: Thu Oct 30 18:27:12 2014 +0000 drivers/net: Disable UFO through virtio Turned off UFO support to virtio-net based devices due to issues with IPv6 fragment id generation for UFO packets. The issue was that IPv6 UFO/GSO implementation expects the fragment id to be supplied in

commit 3d0ad09412ffe00c9afa201d01effdb6023d09b4 Author: Ben Hutchings <ben at decadent.org.uk> Date: Thu Oct 30 18:27:12 2014 +0000 drivers/net: Disable UFO through virtio Turned off UFO support to virtio-net based devices due to issues with IPv6 fragment id generation for UFO packets. The issue was that IPv6 UFO/GSO implementation expects the fragment id to be supplied in

...ones prefixed by >>): In file included from arch/x86/include/asm/swiotlb.h:5, from arch/x86/include/asm/dma-mapping.h:13, from include/linux/dma-mapping.h:261, from include/linux/skbuff.h:34, from include/net/net_namespace.h:36, from include/linux/inet.h:46, from include/linux/sunrpc/msg_prot.h:204, from include/linux/sunrpc/auth.h:16, from include/linux/nfs_fs.h:31, from init/do_mounts.c:22: include/linux/swiotlb.h...

The virtio net protocol supports UFO but does not provide for passing a fragment ID for fragmentation of IPv6 packets. We used to generate a fragment ID wherever such a packet was fragmented, but currently we always use ID=0! Ben. Ben Hutchings (2): drivers/net: Disable UFO through virtio drivers/net,ipv6: Select IPv6 fragment idents for virtio UFO packets drivers/net/macvtap.c | 16

The virtio net protocol supports UFO but does not provide for passing a fragment ID for fragmentation of IPv6 packets. We used to generate a fragment ID wherever such a packet was fragmented, but currently we always use ID=0! Ben. Ben Hutchings (2): drivers/net: Disable UFO through virtio drivers/net,ipv6: Select IPv6 fragment idents for virtio UFO packets drivers/net/macvtap.c | 16

commit 3d0ad09412ffe00c9afa201d01effdb6023d09b4 Author: Ben Hutchings <ben at decadent.org.uk> Date: Thu Oct 30 18:27:12 2014 +0000 drivers/net: Disable UFO through virtio Turned off UFO support to virtio-net based devices due to issues with IPv6 fragment id generation for UFO packets. The issue was that IPv6 UFO/GSO implementation expects the fragment id to be supplied in

commit 3d0ad09412ffe00c9afa201d01effdb6023d09b4 Author: Ben Hutchings <ben at decadent.org.uk> Date: Thu Oct 30 18:27:12 2014 +0000 drivers/net: Disable UFO through virtio Turned off UFO support to virtio-net based devices due to issues with IPv6 fragment id generation for UFO packets. The issue was that IPv6 UFO/GSO implementation expects the fragment id to be supplied in

commit 3d0ad09412ffe00c9afa201d01effdb6023d09b4 Author: Ben Hutchings <ben at decadent.org.uk> Date: Thu Oct 30 18:27:12 2014 +0000 drivers/net: Disable UFO through virtio Turned off UFO support to virtio-net based devices due to issues with IPv6 fragment id generation for UFO packets. The issue was that IPv6 UFO/GSO implementation expects the fragment id to be supplied in

commit 3d0ad09412ffe00c9afa201d01effdb6023d09b4 Author: Ben Hutchings <ben at decadent.org.uk> Date: Thu Oct 30 18:27:12 2014 +0000 drivers/net: Disable UFO through virtio Turned off UFO support to virtio-net based devices due to issues with IPv6 fragment id generation for UFO packets. The issue was that IPv6 UFO/GSO implementation expects the fragment id to be supplied in

...subsys devices [ 0.080584] CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) [ 0.080597] CPU: L2 Cache: 256K (64 bytes/line) [ 0.080950] SMP alternatives: switching to UP code [ 0.125151] Freeing SMP alternatives: 16k freed [ 0.125413] Brought up 1 CPUs [ 0.125818] net_namespace: 660 bytes [ 0.125832] Booting paravirtualized kernel on Xen [ 0.125840] Hypervisor signature: xen-3.0-x86_32p [ 0.126045] Grant table initialized [ 0.126118] NET: Registered protocol family 16 [ 0.128514] PCI: Fatal: No config space access function found [ 0.128539] Setting up st...

...[ 0.664275] CPU: L1 I cache: 32K, L1 D cache: 32K [ 0.664283] CPU: L2 cache: 6144K [ 0.664296] Checking 'hlt' instruction... OK. [ 0.664655] SMP alternatives: switching to UP code [ 0.679036] Freeing SMP alternatives: 16k freed [ 0.679124] Brought up 1 CPUs [ 0.681279] net_namespace: 660 bytes [ 0.681429] NET: Registered protocol family 16 [ 0.682443] Brought up 1 CPUs [ 0.682457] PCI: Fatal: No config space access function found [ 0.682462] PCI: setting up Xen PCI frontend stub [ 0.683020] ACPI: Interpreter disabled. [ 0.683027] Linux Plug and Play Support v...