| Message ID | 1334421467-30313-1-git-send-email-levinsasha928@gmail.com |
|---|---|
| State | Superseded |
| Headers | show |
Hello, On Sat, 14 Apr 2012, Sasha Levin wrote: > The registration of a protocol might fail, there were no checks > and all registrations were assumed to be correct. This lead to > NULL ptr dereferences when apps tried registering. > > For example: > > [ 1293.226051] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 > [ 1293.227038] IP: [<ffffffff822aacb0>] tcp_register_app+0x60/0xb0 > [ 1293.227038] PGD 391de067 PUD 6c20b067 PMD 0 > [ 1293.227038] Oops: 0000 [#1] PREEMPT SMP > [ 1293.227038] CPU 1 > [ 1293.227038] Pid: 19609, comm: trinity Tainted: G W 3.4.0-rc1-next-20120405-sasha-dirty #57 > [ 1293.227038] RIP: 0010:[<ffffffff822aacb0>] [<ffffffff822aacb0>] tcp_register_app+0x60/0xb0 > [ 1293.227038] RSP: 0018:ffff880038c1dd18 EFLAGS: 00010286 > [ 1293.227038] RAX: ffffffffffffffc0 RBX: 0000000000001500 RCX: 0000000000010000 > [ 1293.227038] RDX: 0000000000000000 RSI: ffff88003a2d5888 RDI: 0000000000000282 > [ 1293.227038] RBP: ffff880038c1dd48 R08: 0000000000000000 R09: 0000000000000000 > [ 1293.227038] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88003a2d5668 > [ 1293.227038] R13: ffff88003a2d5988 R14: ffff8800696a8ff8 R15: 0000000000000000 > [ 1293.227038] FS: 00007f01930d9700(0000) GS:ffff88007ce00000(0000) knlGS:0000000000000000 > [ 1293.227038] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 1293.227038] CR2: 0000000000000018 CR3: 0000000065dfc000 CR4: 00000000000406e0 > [ 1293.227038] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 1293.227038] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > [ 1293.227038] Process trinity (pid: 19609, threadinfo ffff880038c1c000, task ffff88002dc73000) > [ 1293.227038] Stack: > [ 1293.227038] ffff880038c1dd48 00000000fffffff4 ffff8800696aada0 ffff8800694f5580 > [ 1293.227038] ffffffff8369f1e0 0000000000001500 ffff880038c1dd98 ffffffff822a716b > [ 1293.227038] 0000000000000000 ffff8800696a8ff8 0000000000000015 ffff8800694f5580 > [ 1293.227038] Call Trace: > [ 1293.227038] [<ffffffff822a716b>] ip_vs_app_inc_new+0xdb/0x180 > [ 1293.227038] [<ffffffff822a7258>] register_ip_vs_app_inc+0x48/0x70 > [ 1293.227038] [<ffffffff822b2fea>] __ip_vs_ftp_init+0xba/0x140 > [ 1293.227038] [<ffffffff821c9060>] ops_init+0x80/0x90 > [ 1293.227038] [<ffffffff821c90cb>] setup_net+0x5b/0xe0 > [ 1293.227038] [<ffffffff821c9416>] copy_net_ns+0x76/0x100 > [ 1293.227038] [<ffffffff810dc92b>] create_new_namespaces+0xfb/0x190 > [ 1293.227038] [<ffffffff810dca21>] unshare_nsproxy_namespaces+0x61/0x80 > [ 1293.227038] [<ffffffff810afd1f>] sys_unshare+0xff/0x290 > [ 1293.227038] [<ffffffff8187622e>] ? trace_hardirqs_on_thunk+0x3a/0x3f > [ 1293.227038] [<ffffffff82665539>] system_call_fastpath+0x16/0x1b > [ 1293.227038] Code: 89 c7 e8 34 91 3b 00 89 de 66 c1 ee 04 31 de 83 e6 0f 48 83 c6 22 48 c1 e6 04 4a 8b 14 26 49 8d 34 34 48 8d 42 c0 48 39 d6 74 13 <66> 39 58 58 74 22 48 8b 48 40 48 8d 41 c0 48 39 ce 75 ed 49 8d > [ 1293.227038] RIP [<ffffffff822aacb0>] tcp_register_app+0x60/0xb0 > [ 1293.227038] RSP <ffff880038c1dd18> > [ 1293.227038] CR2: 0000000000000018 > [ 1293.379284] ---[ end trace 364ab40c7011a009 ]--- > [ 1293.381182] Kernel panic - not syncing: Fatal exception in interrupt > > Signed-off-by: Sasha Levin <levinsasha928@gmail.com> Very good. Thank you! Simon, please apply both patches from v3. Acked-by: Julian Anastasov <ja@ssi.bg> This patch can be applied on 2.6.39+ > --- > net/netfilter/ipvs/ip_vs_proto.c | 27 ++++++++++++++++++--------- > 1 files changed, 18 insertions(+), 9 deletions(-) > > diff --git a/net/netfilter/ipvs/ip_vs_proto.c b/net/netfilter/ipvs/ip_vs_proto.c > index f843a88..a62360e 100644 > --- a/net/netfilter/ipvs/ip_vs_proto.c > +++ b/net/netfilter/ipvs/ip_vs_proto.c > @@ -59,9 +59,6 @@ static int __used __init register_ip_vs_protocol(struct ip_vs_protocol *pp) > return 0; > } > > -#if defined(CONFIG_IP_VS_PROTO_TCP) || defined(CONFIG_IP_VS_PROTO_UDP) || \ > - defined(CONFIG_IP_VS_PROTO_SCTP) || defined(CONFIG_IP_VS_PROTO_AH) || \ > - defined(CONFIG_IP_VS_PROTO_ESP) > /* > * register an ipvs protocols netns related data > */ > @@ -86,7 +83,6 @@ register_ip_vs_proto_netns(struct net *net, struct ip_vs_protocol *pp) > > return 0; > } > -#endif > > /* > * unregister an ipvs protocol > @@ -316,22 +312,35 @@ ip_vs_tcpudp_debug_packet(int af, struct ip_vs_protocol *pp, > */ > int __net_init ip_vs_protocol_net_init(struct net *net) > { > + int i, ret; > + static struct ip_vs_protocol *protos[] = { > #ifdef CONFIG_IP_VS_PROTO_TCP > - register_ip_vs_proto_netns(net, &ip_vs_protocol_tcp); > + &ip_vs_protocol_tcp, > #endif > #ifdef CONFIG_IP_VS_PROTO_UDP > - register_ip_vs_proto_netns(net, &ip_vs_protocol_udp); > + &ip_vs_protocol_udp, > #endif > #ifdef CONFIG_IP_VS_PROTO_SCTP > - register_ip_vs_proto_netns(net, &ip_vs_protocol_sctp); > + &ip_vs_protocol_sctp, > #endif > #ifdef CONFIG_IP_VS_PROTO_AH > - register_ip_vs_proto_netns(net, &ip_vs_protocol_ah); > + &ip_vs_protocol_ah, > #endif > #ifdef CONFIG_IP_VS_PROTO_ESP > - register_ip_vs_proto_netns(net, &ip_vs_protocol_esp); > + &ip_vs_protocol_esp, > #endif > + }; > + > + for (i = 0; i < ARRAY_SIZE(protos); i++) { > + ret = register_ip_vs_proto_netns(net, protos[i]); > + if (ret < 0) > + goto cleanup; > + } > return 0; > + > +cleanup: > + ip_vs_protocol_net_cleanup(net); > + return ret; > } > > void __net_exit ip_vs_protocol_net_cleanup(struct net *net) > -- > 1.7.8.5 Regards -- Julian Anastasov <ja@ssi.bg> -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Sat, Apr 14, 2012 at 05:23:29PM +0300, Julian Anastasov wrote: > > Hello, > > On Sat, 14 Apr 2012, Sasha Levin wrote: > > > The registration of a protocol might fail, there were no checks > > and all registrations were assumed to be correct. This lead to > > NULL ptr dereferences when apps tried registering. > > > > For example: > > > > [ 1293.226051] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 > > [ 1293.227038] IP: [<ffffffff822aacb0>] tcp_register_app+0x60/0xb0 > > [ 1293.227038] PGD 391de067 PUD 6c20b067 PMD 0 > > [ 1293.227038] Oops: 0000 [#1] PREEMPT SMP > > [ 1293.227038] CPU 1 > > [ 1293.227038] Pid: 19609, comm: trinity Tainted: G W 3.4.0-rc1-next-20120405-sasha-dirty #57 > > [ 1293.227038] RIP: 0010:[<ffffffff822aacb0>] [<ffffffff822aacb0>] tcp_register_app+0x60/0xb0 > > [ 1293.227038] RSP: 0018:ffff880038c1dd18 EFLAGS: 00010286 > > [ 1293.227038] RAX: ffffffffffffffc0 RBX: 0000000000001500 RCX: 0000000000010000 > > [ 1293.227038] RDX: 0000000000000000 RSI: ffff88003a2d5888 RDI: 0000000000000282 > > [ 1293.227038] RBP: ffff880038c1dd48 R08: 0000000000000000 R09: 0000000000000000 > > [ 1293.227038] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88003a2d5668 > > [ 1293.227038] R13: ffff88003a2d5988 R14: ffff8800696a8ff8 R15: 0000000000000000 > > [ 1293.227038] FS: 00007f01930d9700(0000) GS:ffff88007ce00000(0000) knlGS:0000000000000000 > > [ 1293.227038] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > > [ 1293.227038] CR2: 0000000000000018 CR3: 0000000065dfc000 CR4: 00000000000406e0 > > [ 1293.227038] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > > [ 1293.227038] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > > [ 1293.227038] Process trinity (pid: 19609, threadinfo ffff880038c1c000, task ffff88002dc73000) > > [ 1293.227038] Stack: > > [ 1293.227038] ffff880038c1dd48 00000000fffffff4 ffff8800696aada0 ffff8800694f5580 > > [ 1293.227038] ffffffff8369f1e0 0000000000001500 ffff880038c1dd98 ffffffff822a716b > > [ 1293.227038] 0000000000000000 ffff8800696a8ff8 0000000000000015 ffff8800694f5580 > > [ 1293.227038] Call Trace: > > [ 1293.227038] [<ffffffff822a716b>] ip_vs_app_inc_new+0xdb/0x180 > > [ 1293.227038] [<ffffffff822a7258>] register_ip_vs_app_inc+0x48/0x70 > > [ 1293.227038] [<ffffffff822b2fea>] __ip_vs_ftp_init+0xba/0x140 > > [ 1293.227038] [<ffffffff821c9060>] ops_init+0x80/0x90 > > [ 1293.227038] [<ffffffff821c90cb>] setup_net+0x5b/0xe0 > > [ 1293.227038] [<ffffffff821c9416>] copy_net_ns+0x76/0x100 > > [ 1293.227038] [<ffffffff810dc92b>] create_new_namespaces+0xfb/0x190 > > [ 1293.227038] [<ffffffff810dca21>] unshare_nsproxy_namespaces+0x61/0x80 > > [ 1293.227038] [<ffffffff810afd1f>] sys_unshare+0xff/0x290 > > [ 1293.227038] [<ffffffff8187622e>] ? trace_hardirqs_on_thunk+0x3a/0x3f > > [ 1293.227038] [<ffffffff82665539>] system_call_fastpath+0x16/0x1b > > [ 1293.227038] Code: 89 c7 e8 34 91 3b 00 89 de 66 c1 ee 04 31 de 83 e6 0f 48 83 c6 22 48 c1 e6 04 4a 8b 14 26 49 8d 34 34 48 8d 42 c0 48 39 d6 74 13 <66> 39 58 58 74 22 48 8b 48 40 48 8d 41 c0 48 39 ce 75 ed 49 8d > > [ 1293.227038] RIP [<ffffffff822aacb0>] tcp_register_app+0x60/0xb0 > > [ 1293.227038] RSP <ffff880038c1dd18> > > [ 1293.227038] CR2: 0000000000000018 > > [ 1293.379284] ---[ end trace 364ab40c7011a009 ]--- > > [ 1293.381182] Kernel panic - not syncing: Fatal exception in interrupt > > > > Signed-off-by: Sasha Levin <levinsasha928@gmail.com> > > Very good. Thank you! Simon, please apply both > patches from v3. Sorry for not getting to this sooner. I have applied both patches to my ipvs tree and requested that Pablo consider them for inclusion in 3.4. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Apr 23, 2012 at 09:26:45PM +0900, Simon Horman wrote: > On Sat, Apr 14, 2012 at 05:23:29PM +0300, Julian Anastasov wrote: > > > > Hello, > > > > On Sat, 14 Apr 2012, Sasha Levin wrote: > > > > > The registration of a protocol might fail, there were no checks > > > and all registrations were assumed to be correct. This lead to > > > NULL ptr dereferences when apps tried registering. > > > > > > For example: > > > > > > [ 1293.226051] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 > > > [ 1293.227038] IP: [<ffffffff822aacb0>] tcp_register_app+0x60/0xb0 > > > [ 1293.227038] PGD 391de067 PUD 6c20b067 PMD 0 > > > [ 1293.227038] Oops: 0000 [#1] PREEMPT SMP > > > [ 1293.227038] CPU 1 > > > [ 1293.227038] Pid: 19609, comm: trinity Tainted: G W 3.4.0-rc1-next-20120405-sasha-dirty #57 > > > [ 1293.227038] RIP: 0010:[<ffffffff822aacb0>] [<ffffffff822aacb0>] tcp_register_app+0x60/0xb0 > > > [ 1293.227038] RSP: 0018:ffff880038c1dd18 EFLAGS: 00010286 > > > [ 1293.227038] RAX: ffffffffffffffc0 RBX: 0000000000001500 RCX: 0000000000010000 > > > [ 1293.227038] RDX: 0000000000000000 RSI: ffff88003a2d5888 RDI: 0000000000000282 > > > [ 1293.227038] RBP: ffff880038c1dd48 R08: 0000000000000000 R09: 0000000000000000 > > > [ 1293.227038] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88003a2d5668 > > > [ 1293.227038] R13: ffff88003a2d5988 R14: ffff8800696a8ff8 R15: 0000000000000000 > > > [ 1293.227038] FS: 00007f01930d9700(0000) GS:ffff88007ce00000(0000) knlGS:0000000000000000 > > > [ 1293.227038] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > > > [ 1293.227038] CR2: 0000000000000018 CR3: 0000000065dfc000 CR4: 00000000000406e0 > > > [ 1293.227038] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > > > [ 1293.227038] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > > > [ 1293.227038] Process trinity (pid: 19609, threadinfo ffff880038c1c000, task ffff88002dc73000) > > > [ 1293.227038] Stack: > > > [ 1293.227038] ffff880038c1dd48 00000000fffffff4 ffff8800696aada0 ffff8800694f5580 > > > [ 1293.227038] ffffffff8369f1e0 0000000000001500 ffff880038c1dd98 ffffffff822a716b > > > [ 1293.227038] 0000000000000000 ffff8800696a8ff8 0000000000000015 ffff8800694f5580 > > > [ 1293.227038] Call Trace: > > > [ 1293.227038] [<ffffffff822a716b>] ip_vs_app_inc_new+0xdb/0x180 > > > [ 1293.227038] [<ffffffff822a7258>] register_ip_vs_app_inc+0x48/0x70 > > > [ 1293.227038] [<ffffffff822b2fea>] __ip_vs_ftp_init+0xba/0x140 > > > [ 1293.227038] [<ffffffff821c9060>] ops_init+0x80/0x90 > > > [ 1293.227038] [<ffffffff821c90cb>] setup_net+0x5b/0xe0 > > > [ 1293.227038] [<ffffffff821c9416>] copy_net_ns+0x76/0x100 > > > [ 1293.227038] [<ffffffff810dc92b>] create_new_namespaces+0xfb/0x190 > > > [ 1293.227038] [<ffffffff810dca21>] unshare_nsproxy_namespaces+0x61/0x80 > > > [ 1293.227038] [<ffffffff810afd1f>] sys_unshare+0xff/0x290 > > > [ 1293.227038] [<ffffffff8187622e>] ? trace_hardirqs_on_thunk+0x3a/0x3f > > > [ 1293.227038] [<ffffffff82665539>] system_call_fastpath+0x16/0x1b > > > [ 1293.227038] Code: 89 c7 e8 34 91 3b 00 89 de 66 c1 ee 04 31 de 83 e6 0f 48 83 c6 22 48 c1 e6 04 4a 8b 14 26 49 8d 34 34 48 8d 42 c0 48 39 d6 74 13 <66> 39 58 58 74 22 48 8b 48 40 48 8d 41 c0 48 39 ce 75 ed 49 8d > > > [ 1293.227038] RIP [<ffffffff822aacb0>] tcp_register_app+0x60/0xb0 > > > [ 1293.227038] RSP <ffff880038c1dd18> > > > [ 1293.227038] CR2: 0000000000000018 > > > [ 1293.379284] ---[ end trace 364ab40c7011a009 ]--- > > > [ 1293.381182] Kernel panic - not syncing: Fatal exception in interrupt > > > > > > Signed-off-by: Sasha Levin <levinsasha928@gmail.com> > > > > Very good. Thank you! Simon, please apply both > > patches from v3. > > Sorry for not getting to this sooner. I have applied both patches > to my ipvs tree and requested that Pablo consider them for > inclusion in 3.4. Io appolpogise for being both slow and indecisive. I will put the first patch in the ipvs tree for inclusion in 3.4 and the second one in ipvs-next, targeted at 3.5. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/net/netfilter/ipvs/ip_vs_proto.c b/net/netfilter/ipvs/ip_vs_proto.c index f843a88..a62360e 100644 --- a/net/netfilter/ipvs/ip_vs_proto.c +++ b/net/netfilter/ipvs/ip_vs_proto.c @@ -59,9 +59,6 @@ static int __used __init register_ip_vs_protocol(struct ip_vs_protocol *pp) return 0; } -#if defined(CONFIG_IP_VS_PROTO_TCP) || defined(CONFIG_IP_VS_PROTO_UDP) || \ - defined(CONFIG_IP_VS_PROTO_SCTP) || defined(CONFIG_IP_VS_PROTO_AH) || \ - defined(CONFIG_IP_VS_PROTO_ESP) /* * register an ipvs protocols netns related data */ @@ -86,7 +83,6 @@ register_ip_vs_proto_netns(struct net *net, struct ip_vs_protocol *pp) return 0; } -#endif /* * unregister an ipvs protocol @@ -316,22 +312,35 @@ ip_vs_tcpudp_debug_packet(int af, struct ip_vs_protocol *pp, */ int __net_init ip_vs_protocol_net_init(struct net *net) { + int i, ret; + static struct ip_vs_protocol *protos[] = { #ifdef CONFIG_IP_VS_PROTO_TCP - register_ip_vs_proto_netns(net, &ip_vs_protocol_tcp); + &ip_vs_protocol_tcp, #endif #ifdef CONFIG_IP_VS_PROTO_UDP - register_ip_vs_proto_netns(net, &ip_vs_protocol_udp); + &ip_vs_protocol_udp, #endif #ifdef CONFIG_IP_VS_PROTO_SCTP - register_ip_vs_proto_netns(net, &ip_vs_protocol_sctp); + &ip_vs_protocol_sctp, #endif #ifdef CONFIG_IP_VS_PROTO_AH - register_ip_vs_proto_netns(net, &ip_vs_protocol_ah); + &ip_vs_protocol_ah, #endif #ifdef CONFIG_IP_VS_PROTO_ESP - register_ip_vs_proto_netns(net, &ip_vs_protocol_esp); + &ip_vs_protocol_esp, #endif + }; + + for (i = 0; i < ARRAY_SIZE(protos); i++) { + ret = register_ip_vs_proto_netns(net, protos[i]); + if (ret < 0) + goto cleanup; + } return 0; + +cleanup: + ip_vs_protocol_net_cleanup(net); + return ret; } void __net_exit ip_vs_protocol_net_cleanup(struct net *net)
The registration of a protocol might fail, there were no checks and all registrations were assumed to be correct. This lead to NULL ptr dereferences when apps tried registering. For example: [ 1293.226051] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 [ 1293.227038] IP: [<ffffffff822aacb0>] tcp_register_app+0x60/0xb0 [ 1293.227038] PGD 391de067 PUD 6c20b067 PMD 0 [ 1293.227038] Oops: 0000 [#1] PREEMPT SMP [ 1293.227038] CPU 1 [ 1293.227038] Pid: 19609, comm: trinity Tainted: G W 3.4.0-rc1-next-20120405-sasha-dirty #57 [ 1293.227038] RIP: 0010:[<ffffffff822aacb0>] [<ffffffff822aacb0>] tcp_register_app+0x60/0xb0 [ 1293.227038] RSP: 0018:ffff880038c1dd18 EFLAGS: 00010286 [ 1293.227038] RAX: ffffffffffffffc0 RBX: 0000000000001500 RCX: 0000000000010000 [ 1293.227038] RDX: 0000000000000000 RSI: ffff88003a2d5888 RDI: 0000000000000282 [ 1293.227038] RBP: ffff880038c1dd48 R08: 0000000000000000 R09: 0000000000000000 [ 1293.227038] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88003a2d5668 [ 1293.227038] R13: ffff88003a2d5988 R14: ffff8800696a8ff8 R15: 0000000000000000 [ 1293.227038] FS: 00007f01930d9700(0000) GS:ffff88007ce00000(0000) knlGS:0000000000000000 [ 1293.227038] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 1293.227038] CR2: 0000000000000018 CR3: 0000000065dfc000 CR4: 00000000000406e0 [ 1293.227038] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1293.227038] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 1293.227038] Process trinity (pid: 19609, threadinfo ffff880038c1c000, task ffff88002dc73000) [ 1293.227038] Stack: [ 1293.227038] ffff880038c1dd48 00000000fffffff4 ffff8800696aada0 ffff8800694f5580 [ 1293.227038] ffffffff8369f1e0 0000000000001500 ffff880038c1dd98 ffffffff822a716b [ 1293.227038] 0000000000000000 ffff8800696a8ff8 0000000000000015 ffff8800694f5580 [ 1293.227038] Call Trace: [ 1293.227038] [<ffffffff822a716b>] ip_vs_app_inc_new+0xdb/0x180 [ 1293.227038] [<ffffffff822a7258>] register_ip_vs_app_inc+0x48/0x70 [ 1293.227038] [<ffffffff822b2fea>] __ip_vs_ftp_init+0xba/0x140 [ 1293.227038] [<ffffffff821c9060>] ops_init+0x80/0x90 [ 1293.227038] [<ffffffff821c90cb>] setup_net+0x5b/0xe0 [ 1293.227038] [<ffffffff821c9416>] copy_net_ns+0x76/0x100 [ 1293.227038] [<ffffffff810dc92b>] create_new_namespaces+0xfb/0x190 [ 1293.227038] [<ffffffff810dca21>] unshare_nsproxy_namespaces+0x61/0x80 [ 1293.227038] [<ffffffff810afd1f>] sys_unshare+0xff/0x290 [ 1293.227038] [<ffffffff8187622e>] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 1293.227038] [<ffffffff82665539>] system_call_fastpath+0x16/0x1b [ 1293.227038] Code: 89 c7 e8 34 91 3b 00 89 de 66 c1 ee 04 31 de 83 e6 0f 48 83 c6 22 48 c1 e6 04 4a 8b 14 26 49 8d 34 34 48 8d 42 c0 48 39 d6 74 13 <66> 39 58 58 74 22 48 8b 48 40 48 8d 41 c0 48 39 ce 75 ed 49 8d [ 1293.227038] RIP [<ffffffff822aacb0>] tcp_register_app+0x60/0xb0 [ 1293.227038] RSP <ffff880038c1dd18> [ 1293.227038] CR2: 0000000000000018 [ 1293.379284] ---[ end trace 364ab40c7011a009 ]--- [ 1293.381182] Kernel panic - not syncing: Fatal exception in interrupt Signed-off-by: Sasha Levin <levinsasha928@gmail.com> --- net/netfilter/ipvs/ip_vs_proto.c | 27 ++++++++++++++++++--------- 1 files changed, 18 insertions(+), 9 deletions(-)