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| Filename | Latest commit message | Latest commit date |
|---|---|---|
deaa0a976b
After running the following commands for a while, kmemleak reported that
"1879 new suspected memory leaks" happened:
# while : ; do
ip netns add test
ip netns delete test
done
unreferenced object 0xffff88006342fa38 (size 1024):
comm "ip", pid 15477, jiffies 4295982857 (age 957.836s)
hex dump (first 32 bytes):
b8 b0 4d a0 ff ff ff ff c0 34 c3 59 00 88 ff ff ..M......4.Y....
04 00 00 00 a4 01 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff8190510a>] kmemleak_alloc+0x4a/0xa0
[<ffffffff81284130>] __kmalloc_track_caller+0x150/0x300
[<ffffffff812302d0>] kmemdup+0x20/0x50
[<ffffffffa04d598a>] dccp_init_net+0x8a/0x160 [nf_conntrack]
[<ffffffffa04cf9f5>] nf_ct_l4proto_pernet_register_one+0x25/0x90
...
unreferenced object 0xffff88006342da58 (size 1024):
comm "ip", pid 15477, jiffies 4295982857 (age 957.836s)
hex dump (first 32 bytes):
10 b3 4d a0 ff ff ff ff 04 35 c3 59 00 88 ff ff ..M......5.Y....
04 00 00 00 a4 01 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff8190510a>] kmemleak_alloc+0x4a/0xa0
[<ffffffff81284130>] __kmalloc_track_caller+0x150/0x300
[<ffffffff812302d0>] kmemdup+0x20/0x50
[<ffffffffa04d6a9d>] sctp_init_net+0x5d/0x130 [nf_conntrack]
[<ffffffffa04cf9f5>] nf_ct_l4proto_pernet_register_one+0x25/0x90
...
This is because we forgot to implement the get_net_proto for sctp and
dccp, so we won't invoke the nf_ct_unregister_sysctl to free the
ctl_table when do netns cleanup. Also note, we will fail to register
the sysctl for dccp/sctp either due to the lack of get_net_proto.
Fixes:
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.