search for: rtnetlink_rcv_msg

...t-interface.c:861 [<000000004e676cd1>] register_netdevice+0xbf/0x600 net/core/dev.c:8635 [<000000005601497b>] __rtnl_newlink+0xaca/0xb30 net/core/rtnetlink.c:3199 [<00000000ad02cf5e>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3245 [<00000000eceb53af>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5214 [<00000000140451f6>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2482 [<00000000237e38f7>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5232 [<000000000d47c000>] netlink_unicast_kernel net/netlink/af_netlink.c:1307...

...gt; [<ffffffff81474a59>] do_setlink+0x169/0x8b0 > <4> [<ffffffff814770b6>] ? rtnl_fill_ifinfo+0x946/0xcb0 > <4> [<ffffffff812a3d24>] ? nla_parse+0x34/0x110 > <4> [<ffffffff8147659e>] rtnl_setlink+0xee/0x130 > <4> [<ffffffff81475b67>] rtnetlink_rcv_msg+0x2d7/0x340 > <4> [<ffffffff81231e14>] ? socket_has_perm+0x74/0x90 > <4> [<ffffffff81475890>] ? rtnetlink_rcv_msg+0x0/0x340 > <4> [<ffffffff814910a9>] netlink_rcv_skb+0xa9/0xd0 > <4> [<ffffffff81475875>] rtnetlink_rcv+0x25/0x40 > <4&...

...gt; [<ffffffff81474a59>] do_setlink+0x169/0x8b0 > <4> [<ffffffff814770b6>] ? rtnl_fill_ifinfo+0x946/0xcb0 > <4> [<ffffffff812a3d24>] ? nla_parse+0x34/0x110 > <4> [<ffffffff8147659e>] rtnl_setlink+0xee/0x130 > <4> [<ffffffff81475b67>] rtnetlink_rcv_msg+0x2d7/0x340 > <4> [<ffffffff81231e14>] ? socket_has_perm+0x74/0x90 > <4> [<ffffffff81475890>] ? rtnetlink_rcv_msg+0x0/0x340 > <4> [<ffffffff814910a9>] netlink_rcv_skb+0xa9/0xd0 > <4> [<ffffffff81475875>] rtnetlink_rcv+0x25/0x40 > <4&...

...861 > [<000000004e676cd1>] register_netdevice+0xbf/0x600 net/core/dev.c:8635 > [<000000005601497b>] __rtnl_newlink+0xaca/0xb30 net/core/rtnetlink.c:3199 > [<00000000ad02cf5e>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3245 > [<00000000eceb53af>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5214 > [<00000000140451f6>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2482 > [<00000000237e38f7>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5232 > [<000000000d47c000>] netlink_unicast_kernel net/netlink/af_netlink....

...861 > [<000000004e676cd1>] register_netdevice+0xbf/0x600 net/core/dev.c:8635 > [<000000005601497b>] __rtnl_newlink+0xaca/0xb30 net/core/rtnetlink.c:3199 > [<00000000ad02cf5e>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3245 > [<00000000eceb53af>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5214 > [<00000000140451f6>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2482 > [<00000000237e38f7>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5232 > [<000000000d47c000>] netlink_unicast_kernel net/netlink/af_netlink....

I had to add an explicit tag to suppress compiler warning: gcc isn't smart enough to notice that len is always initialized since function is called with size > 0. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck at de.ibm.com> --- drivers/vhost/net.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff

I had to add an explicit tag to suppress compiler warning: gcc isn't smart enough to notice that len is always initialized since function is called with size > 0. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck at de.ibm.com> --- drivers/vhost/net.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff

...b_destroy_class+0xd0/0x12d [sch_htb] [<f8b895c7>] htb_destroy_class+0x52/0x12d [sch_htb] [<f8b8a87a>] htb_destroy+0x3f/0x7b [sch_htb] [<c028f196>] qdisc_destroy+0x44/0x8d [<c0290ba9>] tc_get_qdisc+0x1a3/0x1ef [<c0290a06>] tc_get_qdisc+0x0/0x1ef [<c028a366>] rtnetlink_rcv_msg+0x158/0x215 [<c028a20e>] rtnetlink_rcv_msg+0x0/0x215 [<c0294598>] netlink_run_queue+0x88/0x11d [<c028a1c0>] rtnetlink_rcv+0x26/0x42 [<c0294b0c>] netlink_data_ready+0x12/0x54 [<c0293843>] netlink_sendskb+0x1c/0x33 [<c0294a11>] netlink_sendmsg+0x1ee/0x2d7 [&...

Hello Syzbot On Fri, 14 Jun 2019 02:26:02 +0800 syzbot wrote: > > Hello, > > syzbot has tested the proposed patch but the reproducer still triggered crash: > memory leak in vhost_net_ioctl > Oh sorry for my poor patch. > ANGE): hsr_slave_1: link becomes ready > 2019/06/13 18:24:57 executed programs: 18 > BUG: memory leak > unreferenced object 0xffff88811cbc6ac0

Hello Syzbot On Fri, 14 Jun 2019 02:26:02 +0800 syzbot wrote: > > Hello, > > syzbot has tested the proposed patch but the reproducer still triggered crash: > memory leak in vhost_net_ioctl > Oh sorry for my poor patch. > ANGE): hsr_slave_1: link becomes ready > 2019/06/13 18:24:57 executed programs: 18 > BUG: memory leak > unreferenced object 0xffff88811cbc6ac0

...gs+0xa1/0x1d0 <4> [<ffffffff81474a59>] do_setlink+0x169/0x8b0 <4> [<ffffffff814770b6>] ? rtnl_fill_ifinfo+0x946/0xcb0 <4> [<ffffffff812a3d24>] ? nla_parse+0x34/0x110 <4> [<ffffffff8147659e>] rtnl_setlink+0xee/0x130 <4> [<ffffffff81475b67>] rtnetlink_rcv_msg+0x2d7/0x340 <4> [<ffffffff81231e14>] ? socket_has_perm+0x74/0x90 <4> [<ffffffff81475890>] ? rtnetlink_rcv_msg+0x0/0x340 <4> [<ffffffff814910a9>] netlink_rcv_skb+0xa9/0xd0 <4> [<ffffffff81475875>] rtnetlink_rcv+0x25/0x40 <4> [<ffffffff81490cdb...

...gs+0xa1/0x1d0 <4> [<ffffffff81474a59>] do_setlink+0x169/0x8b0 <4> [<ffffffff814770b6>] ? rtnl_fill_ifinfo+0x946/0xcb0 <4> [<ffffffff812a3d24>] ? nla_parse+0x34/0x110 <4> [<ffffffff8147659e>] rtnl_setlink+0xee/0x130 <4> [<ffffffff81475b67>] rtnetlink_rcv_msg+0x2d7/0x340 <4> [<ffffffff81231e14>] ? socket_has_perm+0x74/0x90 <4> [<ffffffff81475890>] ? rtnetlink_rcv_msg+0x0/0x340 <4> [<ffffffff814910a9>] netlink_rcv_skb+0xa9/0xd0 <4> [<ffffffff81475875>] rtnetlink_rcv+0x25/0x40 <4> [<ffffffff81490cdb...

I''m trying to configure dsmark qdisc on 2.6.11.4 user mode linux and tc from iproute2-2.6.11-050314. I think I have some mismatch in my setup since adding dsmark qdisc fails *unless* I specify "set_tc_index" argument which I believe should be optional: # tc qdisc add dev eth1 handle 1:0 root dsmark indices 8 RTNETLINK answers: Invalid argument Mar 20 13:00:50 user user.debug

...4.339048] do_setlink+0xcf4/0xd20 [ 74.339304] ? symcmp+0xf/0x20 [ 74.339529] ? mls_level_isvalid+0x52/0x60 [ 74.339828] ? mls_range_isvalid+0x43/0x50 [ 74.340135] ? nla_parse+0xa0/0x100 [ 74.340400] rtnl_setlink+0xd4/0x120 [ 74.340664] ? cpumask_next_and+0x30/0x50 [ 74.340966] rtnetlink_rcv_msg+0x7f/0x1f0 [ 74.341259] ? sock_has_perm+0x59/0x60 [ 74.341586] ? napi_consume_skb+0xe2/0x100 [ 74.342010] ? rtnl_newlink+0x890/0x890 [ 74.342435] netlink_rcv_skb+0x92/0xb0 [ 74.342846] rtnetlink_rcv+0x23/0x30 [ 74.343277] netlink_unicast+0x162/0x210 [ 74.343677] netlink_sendmsg...

...4.339048] do_setlink+0xcf4/0xd20 [ 74.339304] ? symcmp+0xf/0x20 [ 74.339529] ? mls_level_isvalid+0x52/0x60 [ 74.339828] ? mls_range_isvalid+0x43/0x50 [ 74.340135] ? nla_parse+0xa0/0x100 [ 74.340400] rtnl_setlink+0xd4/0x120 [ 74.340664] ? cpumask_next_and+0x30/0x50 [ 74.340966] rtnetlink_rcv_msg+0x7f/0x1f0 [ 74.341259] ? sock_has_perm+0x59/0x60 [ 74.341586] ? napi_consume_skb+0xe2/0x100 [ 74.342010] ? rtnl_newlink+0x890/0x890 [ 74.342435] netlink_rcv_skb+0x92/0xb0 [ 74.342846] rtnetlink_rcv+0x23/0x30 [ 74.343277] netlink_unicast+0x162/0x210 [ 74.343677] netlink_sendmsg...

...prop.6+0x10/0x10 > [ 7.276136] ? depot_save_stack+0x2d9/0x460 > [ 7.276142] ? deref_stack_reg+0xad/0xe0 > [ 7.276156] ? find_held_lock+0x32/0x1c0 > [ 7.276164] ? is_bpf_text_address+0x5/0x60 > [ 7.276170] ? __lock_acquire.isra.29+0xe8/0x1bb0 > [ 7.276212] ? rtnetlink_rcv_msg+0x5d6/0x930 > [ 7.276222] ? lock_downgrade+0x5e0/0x5e0 > [ 7.276226] ? lock_acquire+0x10b/0x2a0 > [ 7.276240] rtnetlink_rcv_msg+0x69e/0x930 > [ 7.276249] ? rtnl_calcit.isra.31+0x2f0/0x2f0 > [ 7.276255] ? __lock_acquire.isra.29+0xe8/0x1bb0 > [ 7.276265] ? ne...

...00080050033 CR2: 00007f48b6634950 CR3: 0000000277f1d002 CR4: 0000000000160eb0 Call Trace: virtnet_close+0x6a/0xb0 __dev_close_many+0x91/0x100 __dev_change_flags+0xc1/0x1c0 dev_change_flags+0x23/0x60 do_setlink+0x350/0xdf0 __rtnl_newlink+0x553/0x860 rtnl_newlink+0x43/0x60 rtnetlink_rcv_msg+0x289/0x340 netlink_rcv_skb+0xd1/0x110 netlink_unicast+0x203/0x310 netlink_sendmsg+0x32b/0x460 sock_sendmsg+0x5b/0x60 ____sys_sendmsg+0x23e/0x260 ___sys_sendmsg+0x88/0xd0 __sys_sendmsg+0x63/0xa0 do_syscall_64+0x4c/0x170 entry_SYSCALL_64_after_hwframe+0x44/0xa9 ---------...

...00080050033 CR2: 00007f48b6634950 CR3: 0000000277f1d002 CR4: 0000000000160eb0 Call Trace: virtnet_close+0x6a/0xb0 __dev_close_many+0x91/0x100 __dev_change_flags+0xc1/0x1c0 dev_change_flags+0x23/0x60 do_setlink+0x350/0xdf0 __rtnl_newlink+0x553/0x860 rtnl_newlink+0x43/0x60 rtnetlink_rcv_msg+0x289/0x340 netlink_rcv_skb+0xd1/0x110 netlink_unicast+0x203/0x310 netlink_sendmsg+0x32b/0x460 sock_sendmsg+0x5b/0x60 ____sys_sendmsg+0x23e/0x260 ___sys_sendmsg+0x88/0xd0 __sys_sendmsg+0x63/0xa0 do_syscall_64+0x4c/0x170 entry_SYSCALL_64_after_hwframe+0x44/0xa9 ---------...

....170306] virtnet_restore_up+0x4a/0x590 [virtio_net] > > [ 310.171214] virtnet_xdp+0x89f/0xdf0 [virtio_net] > > [ 310.172077] dev_change_xdp_fd+0x1ca/0x420 > > [ 310.172918] do_setlink+0x2c33/0x3bc0 > > [ 310.173703] rtnl_setlink+0x245/0x380 > > [ 310.174511] rtnetlink_rcv_msg+0x530/0x9b0 > > [ 310.175344] netlink_rcv_skb+0x213/0x450 > > [ 310.176166] rtnetlink_rcv+0x28/0x30 > > [ 310.176990] netlink_unicast+0x4a0/0x6c0 > > [ 310.177807] netlink_sendmsg+0x9ec/0xe50 > > [ 310.178646] sock_sendmsg+0xba/0xf0 > > [ 310.179435]...

....170306] virtnet_restore_up+0x4a/0x590 [virtio_net] > > [ 310.171214] virtnet_xdp+0x89f/0xdf0 [virtio_net] > > [ 310.172077] dev_change_xdp_fd+0x1ca/0x420 > > [ 310.172918] do_setlink+0x2c33/0x3bc0 > > [ 310.173703] rtnl_setlink+0x245/0x380 > > [ 310.174511] rtnetlink_rcv_msg+0x530/0x9b0 > > [ 310.175344] netlink_rcv_skb+0x213/0x450 > > [ 310.176166] rtnetlink_rcv+0x28/0x30 > > [ 310.176990] netlink_unicast+0x4a0/0x6c0 > > [ 310.177807] netlink_sendmsg+0x9ec/0xe50 > > [ 310.178646] sock_sendmsg+0xba/0xf0 > > [ 310.179435]...