CVE-2021-47571

一、漏洞信息
漏洞编号：CVE-2021-47571
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0,6.6.0
CVSS V3.0分值：
BaseScore：7.8 High
Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()The free_rtllib() function frees the dev pointer so there is useafter free on the next line. Re-arrange things to avoid that.
漏洞公开时间：2024-05-24 23:15:22
漏洞创建时间：2024-05-25 04:02:26
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2021-47571

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/2e1ec01af2c7139c6a600bbfaea1a018b35094b6
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47571	https://bugzilla.suse.com/show_bug.cgi?id=1225518
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2021-47571	https://bugzilla.suse.com/show_bug.cgi?id=1225518
suse_bugzilla	https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6	https://bugzilla.suse.com/show_bug.cgi?id=1225518
suse_bugzilla	https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64	https://bugzilla.suse.com/show_bug.cgi?id=1225518
suse_bugzilla	https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b	https://bugzilla.suse.com/show_bug.cgi?id=1225518
suse_bugzilla	https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4	https://bugzilla.suse.com/show_bug.cgi?id=1225518
suse_bugzilla	https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef	https://bugzilla.suse.com/show_bug.cgi?id=1225518
suse_bugzilla	https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82	https://bugzilla.suse.com/show_bug.cgi?id=1225518
suse_bugzilla	https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443	https://bugzilla.suse.com/show_bug.cgi?id=1225518
suse_bugzilla	https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594	https://bugzilla.suse.com/show_bug.cgi?id=1225518
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2021/CVE-2021-47571.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1225518
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2283458	https://bugzilla.suse.com/show_bug.cgi?id=1225518
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024052454-CVE-2021-47571-05b5@gregkh/T	https://bugzilla.redhat.com/show_bug.cgi?id=2283458
ubuntu	https://www.cve.org/CVERecord?id=CVE-2021-47571	https://ubuntu.com/security/CVE-2021-47571
ubuntu	https://git.kernel.org/linus/b535917c51acc97fb0761b1edec85f1f3d02bda4 (5.16-rc3)	https://ubuntu.com/security/CVE-2021-47571
ubuntu	https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6	https://ubuntu.com/security/CVE-2021-47571
ubuntu	https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64	https://ubuntu.com/security/CVE-2021-47571
ubuntu	https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b	https://ubuntu.com/security/CVE-2021-47571
ubuntu	https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4	https://ubuntu.com/security/CVE-2021-47571
ubuntu	https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef	https://ubuntu.com/security/CVE-2021-47571
ubuntu	https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82	https://ubuntu.com/security/CVE-2021-47571
ubuntu	https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443	https://ubuntu.com/security/CVE-2021-47571
ubuntu	https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594	https://ubuntu.com/security/CVE-2021-47571
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2021-47571	https://ubuntu.com/security/CVE-2021-47571
ubuntu	https://launchpad.net/bugs/cve/CVE-2021-47571	https://ubuntu.com/security/CVE-2021-47571
ubuntu	https://security-tracker.debian.org/tracker/CVE-2021-47571	https://ubuntu.com/security/CVE-2021-47571
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594

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/2e1ec01af2c7139c6a600bbfaea1a018b35094b6		nvd
	https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64		nvd
	https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b		nvd
	https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4		nvd
	https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef		nvd
	https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82		nvd
	https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443		nvd
	https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594		nvd
linux	https://git.kernel.org/linus/b535917c51acc97fb0761b1edec85f1f3d02bda4	https://git.kernel.org/linus/66898177e7e5486dc77a4ba742efa4e2e9e900a4	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:staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()The free_rtllib() function frees the dev pointer so there is useafter free on the next line. Re-arrange things to avoid that.
openEuler评分：
7.8
Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
受影响版本排查(受影响/不受影响)：
1.openEuler-20.03-LTS-SP4(4.19.90):受影响
2.openEuler-22.03-LTS-SP1(5.10.0):不受影响
3.openEuler-22.03-LTS-SP3(5.10.0):不受影响
4.openEuler-22.03-LTS-SP4(5.10.0):不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS(6.6.0):不受影响
7.openEuler-24.03-LTS-Next(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4(4.19.90):否
2.openEuler-22.03-LTS-SP1(5.10.0):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.master(6.1.0):否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-22.03-LTS-SP4(5.10.0):否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-1736

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.

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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-22.03-LTS-SP4:
10.openEuler-24.03-LTS:
11.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-22.03-LTS-SP4:
10.openEuler-24.03-LTS:
11.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

参考网址	关联pr	状态	补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2021-47571	None	None	https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64 https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4 https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82 https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594 https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443 https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6 https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef
https://ubuntu.com/security/CVE-2021-47571	None	None	https://discourse.ubuntu.com/c/ubuntu-pro
https://www.opencve.io/cve/CVE-2021-47571	None	None	https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64 https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4 https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82 https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594 https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443 https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6 https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2021-47571
https://security-tracker.debian.org/tracker/CVE-2021-47571	None	None	https://git.kernel.org/linus/b535917c51acc97fb0761b1edec85f1f3d02bda4

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-SP4,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP3,openEuler-22.03-LTS-SP4,openEuler-24.03-LTS,openEuler-24.03-LTS-Next 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-2021-47571

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

staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()

The free_rtllib() function frees the "dev" pointer so there is use
after free on the next line. Re-arrange things to avoid that.

openEuler评分:(评分和向量)
7.8
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: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.openEuler-22.03-LTS-SP4:不受影响
8.master(6.1.0):不受影响
9.openEuler-22.03-LTS-Next:不受影响
10.openEuler-24.03-LTS:不受影响
11.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
11.openEuler-22.03-LTS-SP4:否

@郭梦琪请确认分支: master,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP3,openEuler-22.03-LTS-SP4,openEuler-24.03-LTS,openEuler-24.03-LTS-Next 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-2021-47571

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

staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()

The free_rtllib() function frees the "dev" pointer so there is use
after free on the next line. Re-arrange things to avoid that.

openEuler评分:(评分和向量)
7.8
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: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.openEuler-22.03-LTS-SP4:不受影响
8.master(6.1.0):不受影响
9.openEuler-22.03-LTS-Next:不受影响
10.openEuler-24.03-LTS:不受影响
11.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
11.openEuler-22.03-LTS-SP4:否

@成坚 (CHENG Jian) ,@Xie XiuQi ,@YangYingliang ,@pi3orama ,@jiaoff ,@郭梦琪
关闭issue前,需要将受影响的分支在合并pr时关联上当前issue编号: #I9S27V:CVE-2021-47571
受影响分支: openEuler-20.03-LTS-SP4
具体操作参考: https://gitee.com/help/articles/4142

@成坚 (CHENG Jian) ,@Xie XiuQi ,@YangYingliang ,@pi3orama ,@jiaoff ,@ci-robot
关闭issue前,需要将受影响的分支在合并pr时关联上当前issue编号: #I9S27V:CVE-2021-47571
受影响分支: openEuler-20.03-LTS-SP4
具体操作参考: https://gitee.com/help/articles/4142

CVE-2021-47571

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

staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()

The free_rtllib() function frees the "dev" pointer so there is use
after free on the next line. Re-arrange things to avoid that.

openEuler评分:(评分和向量)
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

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

@成坚 (CHENG Jian) ,@Xie XiuQi ,@YangYingliang ,@pi3orama ,@jiaoff ,@郭梦琪
关闭issue前,需要将受影响的分支在合并pr时关联上当前issue编号: #I9S27V:CVE-2021-47571
受影响分支: openEuler-20.03-LTS-SP4
具体操作参考: https://gitee.com/help/articles/4142

CVE-2021-47571

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

staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()

The free_rtllib() function frees the "dev" pointer so there is use
after free on the next line. Re-arrange things to avoid that.

openEuler评分:(评分和向量)
7.8
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: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.openEuler-22.03-LTS-SP4:不受影响
8.master(6.1.0):不受影响
9.openEuler-22.03-LTS-Next:不受影响
10.openEuler-24.03-LTS:不受影响
11.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
11.openEuler-22.03-LTS-SP4:否

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CVE-2021-47571

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