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→Found bugs
We have implemented [[Continuous integration#Kernel testing|Travis CI setup]] (and were using [https://ci.openvz.org/job/CRIU/view/All/job/CRIU-linux-next/ Jenkins] before) to check if any recent kernel changes break CRIU — before they appear in the vanilla kernel.
We have implemented [[Continuous integration#Kernel testing]] to check if any recent kernel changes break CRIU, to catch those before they appear in the vanilla kernel. This article documents Linux kernel bugs found using this method.
== Found bugs ==
== Found bugs ==
Note that the list is probably incomplete; there were a few bugs found and fixed before we cared to document it here.
Note that the list is incomplete; there were about a dozen bugs found and fixed before we started documenting it here.
{| class="wikitable sortable"
{| class="wikitable sortable"
|-
|-
|20150928
|20150928
|skbuff: Fix skb checksum partial check.
|skbuff: Fix skb checksum partial check
|-
|-
|20160512
|20160512
| kernfs: kernfs_sop_show_path: don't return 0 after seq_dentry call
| kernfs: kernfs_sop_show_path: don't return 0 after seq_dentry call
|-
|20160531
| [http://www.spinics.net/lists/autofs/msg01174.html autofs: don't stuck in a loop if vfs_write returns an error]
|-
|-
|20161024
|20161024
|20170419
|20170419
| [https://lkml.org/lkml/2017/4/19/674 Re: irq/affinity: Fix extra vecs calculation]
| [https://lkml.org/lkml/2017/4/19/674 Re: irq/affinity: Fix extra vecs calculation]
|-
|20170609
| [https://patchwork.kernel.org/patch/9776857/ fs: don't forget to put old mntns in mntns_install]
|-
| 20170524
| [https://patchwork.kernel.org/patch/9812791/ linux-next: BUG: Bad page state in process ip6tables-save pfn:1499f4]
|-
|20170516
| [https://www.mail-archive.com/netdev@vger.kernel.org/msg168631.html <nowiki>Re: [net-next,v2,1/3] net/sock: factor out dequeue/peek with offset code</nowiki>]
|-
|20170628
| [https://patchwork.ozlabs.org/patch/770887/ netfilter: nf_ct_dccp/sctp: fix memory leak after netns cleanup]
|-
| 20170629
| [https://lkml.org/lkml/2017/6/29/710 BUG: Dentry ffff9f795a08fe60{i=af565f,n=lo} still in use (1) unmount of proc proc]
|-
| 20170629
|[https://www.spinics.net/lists/cgroups/msg17666.html kmemleaks reports a lot of cases around memcg_create_kmem_cache]
|-
| 20170831
|[https://patchwork.kernel.org/patch/9933787/ tip:x86/apic x86/idt: Fix the X86_TRAP_BP gate]
|-
| 20171008
|[https://www.mail-archive.com/netdev@vger.kernel.org/msg192535.html net-next: WARNING: CPU: 0 PID: 1544 at net/ipv4/tcp_input.c:889]
|-
| 20171019
| [https://patchwork.kernel.org/patch/10018129/ x86/unwind: Make CONFIG_UNWINDER_ORC=y the default in kconfig for 64-bit]
|-
| 20171018
| [https://www.spinics.net/lists/kernel/msg2628938.html pid: Replace pid bitmap implementation with IDR API]
|-
| 20171218
| [https://lkml.org/lkml/2017/12/18/1278 Re: 2/2 fs, elf: drop MAP_FIXED usage from ...]
|-
| 20171220
|[https://www.spinics.net/lists/kernel/msg2681576.html Re: virtio: make VIRTIO a menuconfig to ease disabling it all]
|-
|20180212
|[https://lkml.org/lkml/2018/2/13/25 Re: [tip:x86/boot] x86/boot/compressed/64: Handle 5-level paging boot if kernel is above 4G]
|-
| 20180330
| [https://lkml.org/lkml/2018/3/30/623 autofs4: use wake_up() instead of wake_up_interruptible]
|-
| 20180330
| [https://lkml.org/lkml/2018/3/30/592 Re: 03/10 genksyms: generate lexer and parser during build instead of shipping]
|-
| 20180104
| [https://lkml.org/lkml/2018/4/4/804 Re: v8, 11/18 mm, dax: enable filesystems to trigger dev_pagemap ->page_free callbacks]
|-
| 20180515
| [https://www.spinics.net/lists/netdev/msg502456.html linux-next: BUG: KASAN: use-after-free in tun_chr_close]
|-
| 20180504
| [https://www.spinics.net/lists/linux-mm/msg151667.html Re: mm: access to uninitialized struct page]
|-
| 20180606
| [https://www.spinics.net/lists/netdev/msg507122.html net: do not allow changing SO_REUSEADDR/SO_REUSEPORT on bound sockets]
|-
|20180608
| [https://lkml.org/lkml/2018/6/8/439 kconfig: reference environment variables directly and remove 'option env=']
|-
|20180607
| [https://patchwork.kernel.org/patch/10434075/ vmsplice: lift import_iovec() into do_vmsplice()]
|-
|20180618
| [https://lkml.org/lkml/2018/6/18/1425 proc: Add fs_context support to procfs]
|-
|20180622
| [https://lkml.org/lkml/2018/6/22/518 kernfs, sysfs, cgroup, intel_rdt: Support fs_context ]
|-
|20180816
|[https://patchwork.kernel.org/patch/10567109/ dhowells/mount-api: proc: set a proper user namespace for fs_context]
|-
| 20180906
| [https://www.spinics.net/lists/linux-fsdevel/msg131986.html dhowells/mount-api: fs: return -ENOPARAM from security_fs_context_parse_param by default]
|-
| 20180910
| [https://www.spinics.net/lists/linux-fsdevel/msg131937.html dhowells/mount-api: general protection fault in mqueue_get_tree]
|}
|}