CVE-2021-47195

一、漏洞信息
漏洞编号：CVE-2021-47195
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 V3.0分值：
BaseScore：5.5 Medium
Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:spi: fix use-after-free of the add_lock mutexCommit 6098475d4cb4 ( spi: Fix deadlock when adding SPI controllers onSPI buses ) introduced a per-controller mutex. But mutex_unlock() ofsaid lock is called after the controller is already freed: spi_unregister_controller(ctlr) -> put_device(&ctlr->dev) -> spi_controller_release(dev) -> mutex_unlock(&ctrl->add_lock)Move the put_device() after the mutex_unlock().
漏洞公开时间：2024-04-11 03:15:47
漏洞创建时间：2024-04-11 04:30:35
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2021-47195

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/37330f37f6666c7739a44b2b6b95b047ccdbed2d
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6c53b45c71b4920b5e62f0ea8079a1da382b9434
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47195	https://bugzilla.suse.com/show_bug.cgi?id=1222832
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2021/CVE-2021-47195.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1222832
suse_bugzilla	https://git.kernel.org/stable/c/37330f37f6666c7739a44b2b6b95b047ccdbed2d	https://bugzilla.suse.com/show_bug.cgi?id=1222832
suse_bugzilla	https://git.kernel.org/stable/c/6c53b45c71b4920b5e62f0ea8079a1da382b9434	https://bugzilla.suse.com/show_bug.cgi?id=1222832
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2021-47195	https://bugzilla.suse.com/show_bug.cgi?id=1222832
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2274614	https://bugzilla.suse.com/show_bug.cgi?id=1222832
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024041035-CVE-2021-47195-38e8@gregkh/T	https://bugzilla.redhat.com/show_bug.cgi?id=2274614
ubuntu	https://git.kernel.org/linus/6c53b45c71b4920b5e62f0ea8079a1da382b9434 (5.16-rc2)	https://ubuntu.com/security/CVE-2021-47195
ubuntu	https://git.kernel.org/stable/c/37330f37f6666c7739a44b2b6b95b047ccdbed2d	https://ubuntu.com/security/CVE-2021-47195
ubuntu	https://git.kernel.org/stable/c/6c53b45c71b4920b5e62f0ea8079a1da382b9434	https://ubuntu.com/security/CVE-2021-47195
ubuntu	https://www.cve.org/CVERecord?id=CVE-2021-47195	https://ubuntu.com/security/CVE-2021-47195
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2021-47195	https://ubuntu.com/security/CVE-2021-47195
ubuntu	https://launchpad.net/bugs/cve/CVE-2021-47195	https://ubuntu.com/security/CVE-2021-47195
ubuntu	https://security-tracker.debian.org/tracker/CVE-2021-47195	https://ubuntu.com/security/CVE-2021-47195
cve_search		https://git.kernel.org/stable/c/37330f37f6666c7739a44b2b6b95b047ccdbed2d
cve_search		https://git.kernel.org/stable/c/6c53b45c71b4920b5e62f0ea8079a1da382b9434
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/37330f37f6666c7739a44b2b6b95b047ccdbed2d
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6c53b45c71b4920b5e62f0ea8079a1da382b9434
ubuntu	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-47195	https://ubuntu.com/security/CVE-2021-47195

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	修复补丁	问题引入补丁	来源
	https://git.kernel.org/stable/c/37330f37f6666c7739a44b2b6b95b047ccdbed2d		nvd
	https://git.kernel.org/stable/c/6c53b45c71b4920b5e62f0ea8079a1da382b9434		nvd
linux	https://git.kernel.org/linus/6c53b45c71b4920b5e62f0ea8079a1da382b9434	https://git.kernel.org/linus/6098475d4cb48d821bdf453c61118c56e26294f0	ubuntu

二、漏洞分析结构反馈
影响性分析说明：
Reserved.
openEuler评分：
5.5
Vector：CVSS：3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N
受影响版本排查(受影响/不受影响)：
1.openEuler-20.03-LTS-SP1(4.19.90):不受影响
2.openEuler-20.03-LTS-SP4(4.19.90):不受影响
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

@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:
10.openEuler-24.03-LTS-Next:

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:
10.openEuler-24.03-LTS-Next:

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

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.

参考网址	关联pr	状态	补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2021-47195	None	None	https://git.kernel.org/stable/c/6c53b45c71b4920b5e62f0ea8079a1da382b9434 https://git.kernel.org/stable/c/37330f37f6666c7739a44b2b6b95b047ccdbed2d
https://ubuntu.com/security/CVE-2021-47195	None	None	https://discourse.ubuntu.com/c/ubuntu-pro
https://www.opencve.io/cve/CVE-2021-47195	None	None	https://git.kernel.org/stable/c/6c53b45c71b4920b5e62f0ea8079a1da382b9434 https://git.kernel.org/stable/c/37330f37f6666c7739a44b2b6b95b047ccdbed2d
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2021-47195
https://security-tracker.debian.org/tracker/CVE-2021-47195	None	None	https://git.kernel.org/linus/6c53b45c71b4920b5e62f0ea8079a1da382b9434

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

CVE-2021-47195

影响性分析说明：
Reserved.

openEuler评分:(评分和向量)
0.0
CVSS: 3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1:不受影响
2.openEuler-20.03-LTS-SP4:不受影响
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

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

@ 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	Reserved.
已分析	2.openEulerScore	5.5
已分析	3.openEulerVector	AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N
已分析	4.受影响版本排查	openEuler-20.03-LTS-SP1:不受影响,openEuler-20.03-LTS-SP4:不受影响,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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