CVE-2021-47456

一、漏洞信息
 漏洞编号：[CVE-2021-47456](https://nvd.nist.gov/vuln/detail/CVE-2021-47456)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/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
<details>
<summary>更多参考(点击展开)</summary>

| 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 |

</details>

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：
 <details>
<summary>详情(点击展开)</summary>

| 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 |

</details>

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

@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

<table><tr><th white-space: nowrap;>参考网址</th> <th white-space: nowrap;>关联pr</th> <th white-space: nowrap;>状态</th> <th white-space: nowrap;>补丁链接</th></tr><tr><td rowspan="1">https://nvd.nist.gov/vuln/detail/CVE-2021-47456</td><td>None</td><td>None</td><td><a href=https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9>https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9</a> <a href=https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9>https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9</a> <a href=https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69>https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69</a> <a href=https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699>https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699</a> <a href=https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38>https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38</a> <a href=https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d>https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d</a> <a href=https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98>https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98</a> <a href=https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250>https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250</a></td></tr><tr><td rowspan="1">https://ubuntu.com/security/CVE-2021-47456</td><td>None</td><td>None</td><td><a href=https://discourse.ubuntu.com/c/ubuntu-pro>https://discourse.ubuntu.com/c/ubuntu-pro</a></td></tr><tr><td rowspan="1">https://www.opencve.io/cve/CVE-2021-47456</td><td>None</td><td>None</td><td><a href=https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9>https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9</a> <a href=https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9>https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9</a> <a href=https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69>https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69</a> <a href=https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699>https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699</a> <a href=https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38>https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38</a> <a href=https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d>https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d</a> <a href=https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98>https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98</a> <a href=https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250>https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250</a></td></tr><tr><td>https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2021-47456</td><td></td><td></td><td></td></tr><tr><td rowspan="1">https://security-tracker.debian.org/tracker/CVE-2021-47456</td><td>None</td><td>None</td><td><a href=https://git.kernel.org/linus/949fe9b35570361bc6ee2652f89a0561b26eec98>https://git.kernel.org/linus/949fe9b35570361bc6ee2652f89a0561b26eec98</a></td></tr></table>

> 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](https://gitee.com/openeuler/cve-manager/blob/master/cve-agency-manager/cve_tracking/README.md)。
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

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CVE-2021-47456

评论 (11)

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