CVE-2021-47456

一、漏洞信息
漏洞编号：CVE-2021-47456
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 V2.0分值：
BaseScore：0.0 High
Vector：CVSS：2.0/
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:can: peak_pci: peak_pci_remove(): fix UAFWhen remove the module peek_pci, referencing chan again afterreleasing dev will cause UAF.Fix this by releasing dev later.The following log reveals it:[ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci][ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537[ 35.965513 ] Call Trace:[ 35.965718 ] dump_stack_lvl+0xa8/0xd1[ 35.966028 ] print_address_description+0x87/0x3b0[ 35.966420 ] kasan_report+0x172/0x1c0[ 35.966725 ] ? peak_pci_remove+0x16f/0x270 [peak_pci][ 35.967137 ] ? trace_irq_enable_rcuidle+0x10/0x170[ 35.967529 ] ? peak_pci_remove+0x16f/0x270 [peak_pci][ 35.967945 ] __asan_report_load8_noabort+0x14/0x20[ 35.968346 ] peak_pci_remove+0x16f/0x270 [peak_pci][ 35.968752 ] pci_device_remove+0xa9/0x250
漏洞公开时间：2024-05-22 15:15:10
漏洞创建时间：2024-05-22 15:52:19
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2021-47456

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/0e5afdc2315b0737edcf55bede4ee1640d2d464d
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47456	https://bugzilla.suse.com/show_bug.cgi?id=1225256
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2021-47456	https://bugzilla.suse.com/show_bug.cgi?id=1225256
suse_bugzilla	https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d	https://bugzilla.suse.com/show_bug.cgi?id=1225256
suse_bugzilla	https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699	https://bugzilla.suse.com/show_bug.cgi?id=1225256
suse_bugzilla	https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38	https://bugzilla.suse.com/show_bug.cgi?id=1225256
suse_bugzilla	https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69	https://bugzilla.suse.com/show_bug.cgi?id=1225256
suse_bugzilla	https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250	https://bugzilla.suse.com/show_bug.cgi?id=1225256
suse_bugzilla	https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9	https://bugzilla.suse.com/show_bug.cgi?id=1225256
suse_bugzilla	https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98	https://bugzilla.suse.com/show_bug.cgi?id=1225256
suse_bugzilla	https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9	https://bugzilla.suse.com/show_bug.cgi?id=1225256
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2021/CVE-2021-47456.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1225256
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2282902	https://bugzilla.suse.com/show_bug.cgi?id=1225256
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024052244-CVE-2021-47456-dc47@gregkh/T	https://bugzilla.redhat.com/show_bug.cgi?id=2282902
redhat_bugzilla	https://access.redhat.com/errata/RHSA-2024:4211	https://bugzilla.redhat.com/show_bug.cgi?id=2282902
redhat_bugzilla	https://access.redhat.com/errata/RHSA-2024:4352	https://bugzilla.redhat.com/show_bug.cgi?id=2282902
ubuntu	https://www.cve.org/CVERecord?id=CVE-2021-47456	https://ubuntu.com/security/CVE-2021-47456
ubuntu	https://git.kernel.org/linus/949fe9b35570361bc6ee2652f89a0561b26eec98 (5.15-rc7)	https://ubuntu.com/security/CVE-2021-47456
ubuntu	https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38	https://ubuntu.com/security/CVE-2021-47456
ubuntu	https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9	https://ubuntu.com/security/CVE-2021-47456
ubuntu	https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250	https://ubuntu.com/security/CVE-2021-47456
ubuntu	https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9	https://ubuntu.com/security/CVE-2021-47456
ubuntu	https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699	https://ubuntu.com/security/CVE-2021-47456
ubuntu	https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69	https://ubuntu.com/security/CVE-2021-47456
ubuntu	https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d	https://ubuntu.com/security/CVE-2021-47456
ubuntu	https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98	https://ubuntu.com/security/CVE-2021-47456
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2021-47456	https://ubuntu.com/security/CVE-2021-47456
ubuntu	https://launchpad.net/bugs/cve/CVE-2021-47456	https://ubuntu.com/security/CVE-2021-47456
ubuntu	https://security-tracker.debian.org/tracker/CVE-2021-47456	https://ubuntu.com/security/CVE-2021-47456
anolis		https://anas.openanolis.cn/cves/detail/CVE-2021-47456
cve_search		https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38
cve_search		https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9
cve_search		https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250
cve_search		https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9
cve_search		https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699
cve_search		https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69
cve_search		https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d
cve_search		https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98

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/949fe9b35570361bc6ee2652f89a0561b26eec98	https://git.kernel.org/linus/e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd	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:can: peak_pci: peak_pci_remove(): fix UAFWhen remove the module peek_pci, referencing chan again afterreleasing dev will cause UAF.Fix this by releasing dev later.The following log reveals it:[ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci][ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537[ 35.965513 ] Call Trace:[ 35.965718 ] dump_stack_lvl+0xa8/0xd1[ 35.966028 ] print_address_description+0x87/0x3b0[ 35.966420 ] kasan_report+0x172/0x1c0[ 35.966725 ] ? peak_pci_remove+0x16f/0x270 [peak_pci][ 35.967137 ] ? trace_irq_enable_rcuidle+0x10/0x170[ 35.967529 ] ? peak_pci_remove+0x16f/0x270 [peak_pci][ 35.967945 ] __asan_report_load8_noabort+0x14/0x20[ 35.968346 ] peak_pci_remove+0x16f/0x270 [peak_pci][ 35.968752 ] pci_device_remove+0xa9/0x250
openEuler评分：
8.4
Vector：CVSS：3.0/AV:L/AC:L/PR:N/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

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 ,@jiaoff ,@guohaocs2c ,@hanjun-guo ,@woqidaideshi ,@newbeats ,@zhangyi089 ,@colyli ,@thundertown ,@htforge ,@chiqijun ,@lengchao ,@zhujianwei001 ,@kylin-mayukun ,@wangxiongfeng ,@wkfxxx ,@SuperSix173 ,@jentlestea ,@oskernel0719 ,@gasonchen 
**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-2021-47456	None	None	https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9 https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9 https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69 https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699 https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38 https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98 https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250
https://ubuntu.com/security/CVE-2021-47456	None	None	https://discourse.ubuntu.com/c/ubuntu-pro
https://www.opencve.io/cve/CVE-2021-47456	None	None	https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9 https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9 https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69 https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699 https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38 https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98 https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2021-47456
https://security-tracker.debian.org/tracker/CVE-2021-47456	None	None	https://git.kernel.org/linus/949fe9b35570361bc6ee2652f89a0561b26eec98

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-2021-47456

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

can: peak_pci: peak_pci_remove(): fix UAF

When remove the module peek_pci, referencing 'chan' again after
releasing 'dev' will cause UAF.

Fix this by releasing 'dev' later.

The following log reveals it:

[ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537
[ 35.965513 ] Call Trace:
[ 35.965718 ] dump_stack_lvl+0xa8/0xd1
[ 35.966028 ] print_address_description+0x87/0x3b0
[ 35.966420 ] kasan_report+0x172/0x1c0
[ 35.966725 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.967137 ] ? trace_irq_enable_rcuidle+0x10/0x170
[ 35.967529 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.967945 ] __asan_report_load8_noabort+0x14/0x20
[ 35.968346 ] peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.968752 ] pci_device_remove+0xa9/0x250

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-SP4:受影响
2.openEuler-22.03-LTS-SP1:受影响
3.openEuler-22.03-LTS-SP3: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: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

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

@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:can: peak_pci: peak_pci_remove(): fix UAFWhen remove the module peek_pci, referencing 'chan' again afterreleasing 'dev' will cause UAF.Fix this by releasing 'dev' later.The following log reveals it:[   35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci][   35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537[   35.965513 ] Call Trace:[   35.965718 ]  dump_stack_lvl+0xa8/0xd1[   35.966028 ]  print_address_description+0x87/0x3b0[   35.966420 ]  kasan_report+0x172/0x1c0[   35.966725 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci][   35.967137 ]  ? trace_irq_enable_rcuidle+0x10/0x170[   35.967529 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci][   35.967945 ]  __asan_report_load8_noabort+0x14/0x20[   35.968346 ]  peak_pci_remove+0x16f/0x270 [peak_pci][   35.968752 ]  pci_device_remove+0xa9/0x250|
|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-SP4:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-22.03-LTS-SP4:不受影响,master: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-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4: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.**

CVE-2021-47456

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

can: peak_pci: peak_pci_remove(): fix UAF

When remove the module peek_pci, referencing 'chan' again after
releasing 'dev' will cause UAF.

Fix this by releasing 'dev' later.

The following log reveals it:

[ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537
[ 35.965513 ] Call Trace:
[ 35.965718 ] dump_stack_lvl+0xa8/0xd1
[ 35.966028 ] print_address_description+0x87/0x3b0
[ 35.966420 ] kasan_report+0x172/0x1c0
[ 35.966725 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.967137 ] ? trace_irq_enable_rcuidle+0x10/0x170
[ 35.967529 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.967945 ] __asan_report_load8_noabort+0x14/0x20
[ 35.968346 ] peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.968752 ] pci_device_remove+0xa9/0x250

openEuler评分:(评分和向量)
8.4
CVSS:3.1/AV:L/AC:L/PR:N/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

@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:can: peak_pci: peak_pci_remove(): fix UAFWhen remove the module peek_pci, referencing 'chan' again afterreleasing 'dev' will cause UAF.Fix this by releasing 'dev' later.The following log reveals it:[   35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci][   35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537[   35.965513 ] Call Trace:[   35.965718 ]  dump_stack_lvl+0xa8/0xd1[   35.966028 ]  print_address_description+0x87/0x3b0[   35.966420 ]  kasan_report+0x172/0x1c0[   35.966725 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci][   35.967137 ]  ? trace_irq_enable_rcuidle+0x10/0x170[   35.967529 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci][   35.967945 ]  __asan_report_load8_noabort+0x14/0x20[   35.968346 ]  peak_pci_remove+0x16f/0x270 [peak_pci][   35.968752 ]  pci_device_remove+0xa9/0x250|
|已分析|2.openEulerScore|8.4|
|已分析|3.openEulerVector|AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP1:不受影响,openEuler-22.03-LTS-SP3:不受影响,openEuler-22.03-LTS-SP4:不受影响,master: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-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4: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.**

CVE-2021-47456

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

can: peak_pci: peak_pci_remove(): fix UAF

When remove the module peek_pci, referencing 'chan' again after
releasing 'dev' will cause UAF.

Fix this by releasing 'dev' later.

The following log reveals it:

[ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537
[ 35.965513 ] Call Trace:
[ 35.965718 ] dump_stack_lvl+0xa8/0xd1
[ 35.966028 ] print_address_description+0x87/0x3b0
[ 35.966420 ] kasan_report+0x172/0x1c0
[ 35.966725 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.967137 ] ? trace_irq_enable_rcuidle+0x10/0x170
[ 35.967529 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.967945 ] __asan_report_load8_noabort+0x14/0x20
[ 35.968346 ] peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.968752 ] pci_device_remove+0xa9/0x250

openEuler评分:(评分和向量)
8.4
CVSS:3.1/AV:L/AC:L/PR:N/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

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

@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:can: peak_pci: peak_pci_remove(): fix UAFWhen remove the module peek_pci, referencing 'chan' again afterreleasing 'dev' will cause UAF.Fix this by releasing 'dev' later.The following log reveals it:[   35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci][   35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537[   35.965513 ] Call Trace:[   35.965718 ]  dump_stack_lvl+0xa8/0xd1[   35.966028 ]  print_address_description+0x87/0x3b0[   35.966420 ]  kasan_report+0x172/0x1c0[   35.966725 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci][   35.967137 ]  ? trace_irq_enable_rcuidle+0x10/0x170[   35.967529 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci][   35.967945 ]  __asan_report_load8_noabort+0x14/0x20[   35.968346 ]  peak_pci_remove+0x16f/0x270 [peak_pci][   35.968752 ]  pci_device_remove+0xa9/0x250|
|已分析|2.openEulerScore|8.4|
|已分析|3.openEulerVector|AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP1:不受影响,openEuler-22.03-LTS-SP3:不受影响,openEuler-22.03-LTS-SP4:不受影响,master: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-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4: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.**

src-openEuler/kernel

内容风险标识

评论 (11)

src-openEuler/kernel .gitee-modal { width: 500px !important; }

内容风险标识

CVE-2021-47456

评论 (11)

搜索帮助

src-openEuler/kernel