CVE-2021-47113

一、漏洞信息
漏洞编号：CVE-2021-47113
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0
CVSS V2.0分值：
BaseScore：0.0 Low
Vector：CVSS：2.0/
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:btrfs: abort in rename_exchange if we fail to insert the second refError injection stress uncovered a problem where we d leave a danglinginode ref if we failed during a rename_exchange. This happens becausewe insert the inode ref for one side of the rename, and then for theother side. If this second inode ref insert fails we ll leave the firstone dangling and leave a corrupt file system behind. Fix this byaborting if we did the insert for the first inode ref.
漏洞公开时间：2024-03-16 05:15:06
漏洞创建时间：2024-03-16 05:58:40
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2021-47113

更多参考(点击展开)

参考来源	参考链接	来源链接
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0df50d47d17401f9f140dfbe752a65e5d72f9932
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/dc09ef3562726cd520c8338c1640872a60187af5
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ff8de2cec65a8c8521faade12a31b39c80e49f5b
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47113	https://bugzilla.suse.com/show_bug.cgi?id=1221543
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2021-47113	https://bugzilla.suse.com/show_bug.cgi?id=1221543
suse_bugzilla	https://git.kernel.org/stable/c/0df50d47d17401f9f140dfbe752a65e5d72f9932	https://bugzilla.suse.com/show_bug.cgi?id=1221543
suse_bugzilla	https://git.kernel.org/stable/c/dc09ef3562726cd520c8338c1640872a60187af5	https://bugzilla.suse.com/show_bug.cgi?id=1221543
suse_bugzilla	https://git.kernel.org/stable/c/ff8de2cec65a8c8521faade12a31b39c80e49f5b	https://bugzilla.suse.com/show_bug.cgi?id=1221543
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2269867	https://bugzilla.suse.com/show_bug.cgi?id=1221543
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024031507-CVE-2021-47113-bf29@gregkh/T/#u	https://bugzilla.redhat.com/show_bug.cgi?id=2269867
ubuntu	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-47113	https://ubuntu.com/security/CVE-2021-47113
ubuntu	https://git.kernel.org/linus/dc09ef3562726cd520c8338c1640872a60187af5 (5.13-rc5)	https://ubuntu.com/security/CVE-2021-47113
ubuntu	https://git.kernel.org/stable/c/0df50d47d17401f9f140dfbe752a65e5d72f9932	https://ubuntu.com/security/CVE-2021-47113
ubuntu	https://git.kernel.org/stable/c/ff8de2cec65a8c8521faade12a31b39c80e49f5b	https://ubuntu.com/security/CVE-2021-47113
ubuntu	https://git.kernel.org/stable/c/dc09ef3562726cd520c8338c1640872a60187af5	https://ubuntu.com/security/CVE-2021-47113
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2021-47113	https://ubuntu.com/security/CVE-2021-47113
ubuntu	https://launchpad.net/bugs/cve/CVE-2021-47113	https://ubuntu.com/security/CVE-2021-47113
ubuntu	https://security-tracker.debian.org/tracker/CVE-2021-47113	https://ubuntu.com/security/CVE-2021-47113
cve_search		https://git.kernel.org/stable/c/0df50d47d17401f9f140dfbe752a65e5d72f9932
cve_search		https://git.kernel.org/stable/c/ff8de2cec65a8c8521faade12a31b39c80e49f5b
cve_search		https://git.kernel.org/stable/c/dc09ef3562726cd520c8338c1640872a60187af5

漏洞分析指导链接：
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
漏洞数据来源:
openBrain开源漏洞感知系统
漏洞补丁信息：

详情(点击展开)

影响的包	修复版本	修复补丁	问题引入补丁	来源
linux		https://git.kernel.org/linus/dc09ef3562726cd520c8338c1640872a60187af5	https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2	ubuntu

二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:btrfs: abort in rename_exchange if we fail to insert the second refError injection stress uncovered a problem where we d leave a danglinginode ref if we failed during a rename_exchange. This happens becausewe insert the inode ref for one side of the rename, and then for theother side. If this second inode ref insert fails we ll leave the firstone dangling and leave a corrupt file system behind. Fix this byaborting if we did the insert for the first inode ref.
openEuler评分：
5.5
Vector：CVSS：2.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
受影响版本排查(受影响/不受影响)：
1.openEuler-20.03-LTS-SP1(4.19.90):受影响
2.openEuler-20.03-LTS-SP4(4.19.90):受影响
3.openEuler-22.03-LTS(5.10.0):不受影响
4.openEuler-22.03-LTS-SP1(5.10.0):不受影响
5.openEuler-22.03-LTS-SP2(5.10.0):不受影响
6.openEuler-22.03-LTS-SP3(5.10.0):不受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next(5.10.0):不受影响
9.openEuler-24.03-LTS:不受影响
10.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4(4.19.90):否
3.openEuler-22.03-LTS(5.10.0):否
4.openEuler-22.03-LTS-SP1(5.10.0):否
5.openEuler-22.03-LTS-SP2(5.10.0):否
6.openEuler-22.03-LTS-SP3(5.10.0):否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next(5.10.0):否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-1393

Hi openeuler-ci-bot, welcome to the openEuler Community.
I'm the Bot here serving you. You can find the instructions on how to interact with me at Here.
If you have any questions, please contact the SIG: Kernel, and any of the maintainers.

@YangYingliang ,@成坚 (CHENG Jian) ,@jiaoff ,@AlexGuo ,@hanjun-guo ,@woqidaideshi ,@Jackie Liu ,@Zhang Yi ,@colyli ,@ThunderTown ,@htforge ,@Chiqijun ,@冷嘲啊 ,@zhujianwei001 ,@kylin-mayukun ,@wangxiongfeng ,@Kefeng ,@SuperSix173 ,@WangShaoBo ,@Zheng Zucheng
issue处理注意事项:
1. 当前issue受影响的分支提交pr时, 须在pr描述中填写当前issue编号进行关联, 否则无法关闭当前issue;
2. 模板内容需要填写完整, 无论是受影响或者不受影响都需要填写完整内容,未引入的分支不需要填写, 否则无法关闭当前issue;
3. 以下为模板中需要填写完整的内容, 请复制到评论区回复, 注: 内容的标题名称(影响性分析说明, openEuler评分, 受影响版本排查(受影响/不受影响), 修复是否涉及abi变化(是/否))不能省略,省略后cve-manager将无法正常解析填写内容.

影响性分析说明:

openEuler评分: (评分和向量)

受影响版本排查(受影响/不受影响):
1.master(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):
9.openEuler-24.03-LTS:

修复是否涉及abi变化(是/否)：
1.master(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):
9.openEuler-24.03-LTS:

issue处理具体操作请参考:
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
pr关联issue具体操作请参考:
https://gitee.com/help/articles/4142

参考网址	关联pr	状态	补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2021-47113	None	None	https://git.kernel.org/stable/c/dc09ef3562726cd520c8338c1640872a60187af5 https://git.kernel.org/stable/c/0df50d47d17401f9f140dfbe752a65e5d72f9932 https://git.kernel.org/stable/c/ff8de2cec65a8c8521faade12a31b39c80e49f5b
https://ubuntu.com/security/CVE-2021-47113	None	None	https://discourse.ubuntu.com/c/ubuntu-pro
https://www.opencve.io/cve/CVE-2021-47113	None	None	https://git.kernel.org/stable/c/dc09ef3562726cd520c8338c1640872a60187af5 https://git.kernel.org/stable/c/0df50d47d17401f9f140dfbe752a65e5d72f9932 https://git.kernel.org/stable/c/ff8de2cec65a8c8521faade12a31b39c80e49f5b
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2021-47113
https://security-tracker.debian.org/tracker/CVE-2021-47113	None	None	https://git.kernel.org/linus/dc09ef3562726cd520c8338c1640872a60187af5

说明：补丁链接仅供初步排查参考，实际可用性请人工再次确认，补丁下载验证可使用CVE补丁工具。
若补丁不准确，烦请在此issue下评论 '/report-patch 参考网址补丁链接1,补丁链接2' 反馈正确信息，便于我们不断优化工具，不胜感激。
如 /report-patch https://security-tracker.debian.org/tracker/CVE-2021-3997 https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1

@郭梦琪请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3,openEuler-24.03-LTS 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

@ci-robot 请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3,openEuler-24.03-LTS 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

@hongrongxuan 请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3,openEuler-24.03-LTS 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

@zhangchangzhong 请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3,openEuler-24.03-LTS 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

CVE-2021-47113

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

btrfs: abort in rename_exchange if we fail to insert the second ref

Error injection stress uncovered a problem where we'd leave a dangling
inode ref if we failed during a rename_exchange. This happens because
we insert the inode ref for one side of the rename, and then for the
other side. If this second inode ref insert fails we'll leave the first
one dangling and leave a corrupt file system behind. Fix this by
aborting if we did the insert for the first inode ref.

openEuler评分:(评分和向量)
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1:受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS:不受影响
4.openEuler-22.03-LTS-SP1:不受影响
5.openEuler-22.03-LTS-SP2:不受影响
6.openEuler-22.03-LTS-SP3:不受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next:不受影响
9.openEuler-24.03-LTS:不受影响
10.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS:否
4.openEuler-22.03-LTS-SP1:否
5.openEuler-22.03-LTS-SP2:否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next:否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否

===========================================================

@sanglipeng 经过 cve-manager 解析, 已分析的内容如下表所示:

状态	需分析	内容
已分析	1.影响性分析说明	In the Linux kernel, the following vulnerability has been resolved:btrfs: abort in rename_exchange if we fail to insert the second refError injection stress uncovered a problem where we'd leave a danglinginode ref if we failed during a rename_exchange. This happens becausewe insert the inode ref for one side of the rename, and then for theother side. If this second inode ref insert fails we'll leave the firstone dangling and leave a corrupt file system behind. Fix this byaborting if we did the insert for the first inode ref.
已分析	2.openEulerScore	5.5
已分析	3.openEulerVector	AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
已分析	4.受影响版本排查	openEuler-20.03-LTS-SP1:受影响,openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS:不受影响,openEuler-22.03-LTS-SP1:不受影响,openEuler-22.03-LTS-SP2:不受影响,openEuler-22.03-LTS-SP3:不受影响,master:不受影响,openEuler-22.03-LTS-Next:不受影响,openEuler-24.03-LTS:不受影响,openEuler-24.03-LTS-Next:不受影响
已分析	5.修复是否涉及abi变化	openEuler-20.03-LTS-SP1:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP2:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-22.03-LTS-Next:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否

请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.

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