On 2017-12-19 4:47 AM, Liwei Song wrote:
Hi Bruce,
These patches used to fix three kinds of kmemleak, all patches backport
from upstream.
merged.
Bruce
kmemleak as following:
unreferenced object 0xffff9ad6eb164b40 (size 256):
comm "rdate", pid 971, jiffies 4294953569 (age 39.383s)
hex dump (first 32 bytes):
01 00 00 00 00 00 00 00 08 00 dd 9a ff ff ff ff ................
77 ce 01 00 00 00 00 00 d8 39 9f f0 d6 9a ff ff w........9......
backtrace:
[<ffffffff9b761308>] kmemleak_alloc+0x28/0x50
[<ffffffff9ae0f538>] kmem_cache_alloc+0xf8/0x1f0
[<ffffffffc008ee6d>] __nf_conntrack_alloc.isra.9+0x4d/0x180 [nf_conntrack]
[<ffffffffc008f018>] init_conntrack+0x58/0x2c0 [nf_conntrack]
[<ffffffffc008f554>] nf_conntrack_in+0x2d4/0x340 [nf_conntrack]
[<ffffffffc00a863f>] ipv4_conntrack_local+0x4f/0x60 [nf_conntrack_ipv4]
[<ffffffff9b62f23a>] nf_hook_slow+0x2a/0xa0
[<ffffffff9b63c170>] __ip_local_out+0xc0/0xd0
[<ffffffff9b63c19c>] ip_local_out+0x1c/0x40
[<ffffffff9b63c4cd>] ip_queue_xmit+0x15d/0x3e0
[<ffffffff9b654397>] tcp_transmit_skb+0x5c7/0x910
[<ffffffff9b655d66>] tcp_connect+0x6e6/0x7b0
[<ffffffff9b658f3b>] tcp_v4_connect+0x3bb/0x4b0
[<ffffffff9b670941>] __inet_stream_connect+0x211/0x320
[<ffffffff9b670a8b>] inet_stream_connect+0x3b/0x60
[<ffffffff9b5d859e>] SyS_connect+0x6e/0xd0
unreferenced object 0xffffa0f9e0aedc00 (size 1024):
comm "(ostnamed)", pid 853, jiffies 4294674870 (age 4032.187s)
hex dump (first 32 bytes):
f8 c0 06 c0 ff ff ff ff 68 8f c1 d8 f9 a0 ff ff ........h.......
04 00 00 00 a4 01 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff91cae758>] kmemleak_alloc+0x28/0x50
[<ffffffff9140c9e1>] __kmalloc_track_caller+0x121/0x260
[<ffffffff913c8e80>] kmemdup+0x20/0x50
[<ffffffffc00685ec>] dccp_init_net+0x8c/0x170 [nf_conntrack]
[<ffffffffc0064ad5>] nf_ct_l4proto_pernet_register_one+0x25/0x70
[nf_conntrack]
[<ffffffffc0064b67>] nf_ct_l4proto_pernet_register+0x47/0xc0 [nf_conntrack]
[<ffffffffc0095690>] ipv4_net_init+0x20/0x70 [nf_conntrack_ipv4]
[<ffffffff91b35fb1>] ops_init+0xa1/0x130
[<ffffffff91b36a0b>] setup_net+0x8b/0x130
[<ffffffff91b3719a>] copy_net_ns+0xba/0x1c0
[<ffffffff912d598f>] create_new_namespaces+0x11f/0x1e0
[<ffffffff912d5c0a>] unshare_nsproxy_namespaces+0x5a/0xb0
[<ffffffff912b6873>] SyS_unshare+0x193/0x320
[<ffffffff91cb4c60>] entry_SYSCALL_64_fastpath+0x13/0x94
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffffab1c02178000 (size 16384):
comm "postfix-script", pid 826, jiffies 4294675099 (age 66.129s)
hex dump (first 32 bytes):
9d 6e ac 57 00 00 00 00 00 00 00 00 00 00 00 00 .n.W............
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffffaeeae758>] kmemleak_alloc+0x28/0x50
[<ffffffffae5ef33b>] __vmalloc_node_range+0x1ab/0x290
[<ffffffffae4b4ca0>] copy_process.part.42+0x690/0x1a70
[<ffffffffae4b6271>] _do_fork+0xe1/0x390
[<ffffffffae4b65c9>] SyS_clone+0x19/0x20
[<ffffffffae40285d>] do_syscall_64+0x4d/0xb0
[<ffffffffaeeb4d06>] return_from_SYSCALL_64+0x0/0x6a
[<ffffffffffffffff>] 0xffffffffffffffff
Catalin Marinas (3):
mm: kmemleak: slightly reduce the size of some structures on 64-bit
architectures
mm: kmemleak: factor object reference updating out of scan_block()
mm: kmemleak: treat vm_struct as alternative reference to vmalloc'ed
objects
Florian Westphal (5):
netfilter: conntrack: rename nf_ct_iterate_cleanup
netfilter: conntrack: don't call iter for non-confirmed conntracks
netfilter: conntrack: add nf_ct_iterate_destroy
netfilter: move table iteration out of netns exit paths
netfilter: conntrack: do not enable connection tracking unless needed
Liping Zhang (1):
netfilter: nf_ct_dccp/sctp: fix memory leak after netns cleanup
Documentation/dev-tools/kmemleak.rst | 1 +
Documentation/networking/nf_conntrack-sysctl.txt | 11 --
include/linux/kmemleak.h | 7 ++
include/net/netfilter/nf_conntrack.h | 10 +-
include/net/netfilter/nf_conntrack_l3proto.h | 15 ---
mm/kmemleak.c | 136 +++++++++++++++++++----
mm/vmalloc.c | 7 +-
net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c | 16 +--
net/ipv4/netfilter/nf_nat_masquerade_ipv4.c | 4 +-
net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c | 17 +--
net/ipv6/netfilter/nf_nat_masquerade_ipv6.c | 10 +-
net/netfilter/nf_conntrack_core.c | 132 +++++++++++++++++-----
net/netfilter/nf_conntrack_netlink.c | 4 +-
net/netfilter/nf_conntrack_proto.c | 55 +++------
net/netfilter/nf_conntrack_proto_dccp.c | 7 ++
net/netfilter/nf_conntrack_proto_sctp.c | 7 ++
net/netfilter/nf_conntrack_standalone.c | 10 --
net/netfilter/nf_nat_core.c | 6 +-
18 files changed, 283 insertions(+), 172 deletions(-)
--
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