CVE-2022-49034

一、漏洞信息
 漏洞编号：[CVE-2022-49034](https://nvd.nist.gov/vuln/detail/CVE-2022-49034)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.4.0,6.6.0
 CVSS V3.0分值：
  BaseScore：0.0 None
  Vector：CVSS：3.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:sh: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACKWhen CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS are selected,cpu_max_bits_warn() generates a runtime warning similar as below whenshowing /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit)instead of NR_CPUS to iterate CPUs.[    3.052463] ------------[ cut here ]------------[    3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0[    3.070072] Modules linked in: efivarfs autofs4[    3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052[    3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000[    3.109127]         9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430[    3.118774]         90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff[    3.128412]         0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890[    3.138056]         0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa[    3.147711]         ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000[    3.157364]         900000000101c998 0000000000000004 9000000000ef7430 0000000000000000[    3.167012]         0000000000000009 000000000000006c 0000000000000000 0000000000000000[    3.176641]         9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286[    3.186260]         00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c[    3.195868]         ...[    3.199917] Call Trace:[    3.203941] [<90000000002086d8>] show_stack+0x38/0x14c[    3.210666] [<9000000000cf846c>] dump_stack_lvl+0x60/0x88[    3.217625] [<900000000023d268>] __warn+0xd0/0x100[    3.223958] [<9000000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc[    3.231150] [<9000000000210220>] show_cpuinfo+0x5e8/0x5f0[    3.238080] [<90000000004f578c>] seq_read_iter+0x354/0x4b4[    3.245098] [<90000000004c2e90>] new_sync_read+0x17c/0x1c4[    3.252114] [<90000000004c5174>] vfs_read+0x138/0x1d0[    3.258694] [<90000000004c55f8>] ksys_read+0x70/0x100[    3.265265] [<9000000000cfde9c>] do_syscall+0x7c/0x94[    3.271820] [<9000000000202fe4>] handle_syscall+0xc4/0x160[    3.281824] ---[ end trace 8b484262b4b8c24c ]---
 漏洞公开时间：2024-12-27 22:15:22
 漏洞创建时间：2024-12-27 22:43:06
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2022-49034
<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/09faf32c682ea4a547200b8b9e04d8b3c8e84b55 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/2b6b8e011fab680a223b5e07a3c64774156ec6fe |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/39373f6f89f52770a5405d30dddd08a27d097872 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/3c891f7c6a4e90bb1199497552f24b26e46383bc |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/701e32900683378d93693fec15d133e2c5f7ada2 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/77755dc95ff2f9a3e473acc1e039f498629949ea |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/8fbb57eabfc8ae67115cb47f904614c99d626a89 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/e2b91997db286a5dd3cca6d5d9c20004851f22eb |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/f8f26cf69003a37ffa947631fc0e6fe6daee624a |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-49034 | https://bugzilla.suse.com/show_bug.cgi?id=1234861 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2022-49034 | https://bugzilla.suse.com/show_bug.cgi?id=1234861 |
| suse_bugzilla | https://git.kernel.org/stable/c/09faf32c682ea4a547200b8b9e04d8b3c8e84b55 | https://bugzilla.suse.com/show_bug.cgi?id=1234861 |
| suse_bugzilla | https://git.kernel.org/stable/c/2b6b8e011fab680a223b5e07a3c64774156ec6fe | https://bugzilla.suse.com/show_bug.cgi?id=1234861 |
| suse_bugzilla | https://git.kernel.org/stable/c/39373f6f89f52770a5405d30dddd08a27d097872 | https://bugzilla.suse.com/show_bug.cgi?id=1234861 |
| suse_bugzilla | https://git.kernel.org/stable/c/3c891f7c6a4e90bb1199497552f24b26e46383bc | https://bugzilla.suse.com/show_bug.cgi?id=1234861 |
| suse_bugzilla | https://git.kernel.org/stable/c/701e32900683378d93693fec15d133e2c5f7ada2 | https://bugzilla.suse.com/show_bug.cgi?id=1234861 |
| suse_bugzilla | https://git.kernel.org/stable/c/77755dc95ff2f9a3e473acc1e039f498629949ea | https://bugzilla.suse.com/show_bug.cgi?id=1234861 |
| suse_bugzilla | https://git.kernel.org/stable/c/8fbb57eabfc8ae67115cb47f904614c99d626a89 | https://bugzilla.suse.com/show_bug.cgi?id=1234861 |
| suse_bugzilla | https://git.kernel.org/stable/c/e2b91997db286a5dd3cca6d5d9c20004851f22eb | https://bugzilla.suse.com/show_bug.cgi?id=1234861 |
| suse_bugzilla | https://git.kernel.org/stable/c/f8f26cf69003a37ffa947631fc0e6fe6daee624a | https://bugzilla.suse.com/show_bug.cgi?id=1234861 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2022/CVE-2022-49034.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1234861 |

</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>

无
</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:sh: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACKWhen CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS are selected,cpu_max_bits_warn() generates a runtime warning similar as below whenshowing /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit)instead of NR_CPUS to iterate CPUs.[    3.052463] ------------[ cut here ]------------[    3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0[    3.070072] Modules linked in: efivarfs autofs4[    3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052[    3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000[    3.109127]         9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430[    3.118774]         90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff[    3.128412]         0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890[    3.138056]         0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa[    3.147711]         ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000[    3.157364]         900000000101c998 0000000000000004 9000000000ef7430 0000000000000000[    3.167012]         0000000000000009 000000000000006c 0000000000000000 0000000000000000[    3.176641]         9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286[    3.186260]         00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c[    3.195868]         ...[    3.199917] Call Trace:[    3.203941] [&lt;90000000002086d8&gt;] show_stack+0x38/0x14c[    3.210666] [&lt;9000000000cf846c&gt;] dump_stack_lvl+0x60/0x88[    3.217625] [&lt;900000000023d268&gt;] __warn+0xd0/0x100[    3.223958] [&lt;9000000000cf3c90&gt;] warn_slowpath_fmt+0x7c/0xcc[    3.231150] [&lt;9000000000210220&gt;] show_cpuinfo+0x5e8/0x5f0[    3.238080] [&lt;90000000004f578c&gt;] seq_read_iter+0x354/0x4b4[    3.245098] [&lt;90000000004c2e90&gt;] new_sync_read+0x17c/0x1c4[    3.252114] [&lt;90000000004c5174&gt;] vfs_read+0x138/0x1d0[    3.258694] [&lt;90000000004c55f8&gt;] ksys_read+0x70/0x100[    3.265265] [&lt;9000000000cfde9c&gt;] do_syscall+0x7c/0x94[    3.271820] [&lt;9000000000202fe4&gt;] handle_syscall+0xc4/0x160[    3.281824] ---[ end trace 8b484262b4b8c24c ]---The Linux kernel CVE team has assigned CVE-2022-49034 to this issue.
 openEuler评分：
  3.9
 Vector：CVSS：3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
 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:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.openEuler-24.03-LTS:受影响
6.openEuler-24.03-LTS-SP1:受影响
7.master(6.6.0):不受影响
8.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(4.19.90):否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.6.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否
8.openEuler-24.03-LTS-SP1:否

原因说明：
  1.openEuler-20.03-LTS-SP4(4.19.90):正常修复
2.openEuler-22.03-LTS-SP1:正常修复
3.openEuler-22.03-LTS-SP3:正常修复
4.openEuler-22.03-LTS-SP4:正常修复
5.openEuler-24.03-LTS:正常修复
6.openEuler-24.03-LTS-SP1:正常修复
7.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
8.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发

@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), 原因说明)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(6.6.0):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP1(5.10.0):
4.openEuler-22.03-LTS-SP3(5.10.0):
5.openEuler-22.03-LTS-SP4(5.10.0):
6.openEuler-24.03-LTS(6.6.0):
7.openEuler-24.03-LTS-Next(6.6.0):
8.openEuler-24.03-LTS-SP1(6.6.0):

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

原因说明：
1.master(6.6.0):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP1(5.10.0):
4.openEuler-22.03-LTS-SP3(5.10.0):
5.openEuler-22.03-LTS-SP4(5.10.0):
6.openEuler-24.03-LTS(6.6.0):
7.openEuler-24.03-LTS-Next(6.6.0):
8.openEuler-24.03-LTS-SP1(6.6.0):

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

CVE-2022-49034

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

sh: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK

When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS are selected,
cpu_max_bits_warn() generates a runtime warning similar as below when
showing /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit)
instead of NR_CPUS to iterate CPUs.

[    3.052463] ------------[ cut here ]------------
[    3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0
[    3.070072] Modules linked in: efivarfs autofs4
[    3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052
[    3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000
[    3.109127]         9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430
[    3.118774]         90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff
[    3.128412]         0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890
[    3.138056]         0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa
[    3.147711]         ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000
[    3.157364]         900000000101c998 0000000000000004 9000000000ef7430 0000000000000000
[    3.167012]         0000000000000009 000000000000006c 0000000000000000 0000000000000000
[    3.176641]         9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286
[    3.186260]         00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c
[    3.195868]         ...
[    3.199917] Call Trace:
[    3.203941] [&lt;90000000002086d8&gt;] show_stack+0x38/0x14c
[    3.210666] [&lt;9000000000cf846c&gt;] dump_stack_lvl+0x60/0x88
[    3.217625] [&lt;900000000023d268&gt;] __warn+0xd0/0x100
[    3.223958] [&lt;9000000000cf3c90&gt;] warn_slowpath_fmt+0x7c/0xcc
[    3.231150] [&lt;9000000000210220&gt;] show_cpuinfo+0x5e8/0x5f0
[    3.238080] [&lt;90000000004f578c&gt;] seq_read_iter+0x354/0x4b4
[    3.245098] [&lt;90000000004c2e90&gt;] new_sync_read+0x17c/0x1c4
[    3.252114] [&lt;90000000004c5174&gt;] vfs_read+0x138/0x1d0
[    3.258694] [&lt;90000000004c55f8&gt;] ksys_read+0x70/0x100
[    3.265265] [&lt;9000000000cfde9c&gt;] do_syscall+0x7c/0x94
[    3.271820] [&lt;9000000000202fe4&gt;] handle_syscall+0xc4/0x160
[    3.281824] ---[ end trace 8b484262b4b8c24c ]---

The Linux kernel CVE team has assigned CVE-2022-49034 to this issue.

openEuler评分:(评分和向量)
3.9
AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L

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: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
8.openEuler-24.03-LTS-SP1: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
8.openEuler-24.03-LTS-SP1:否

原因说明：
1.master(23.08.5):不受影响-漏洞代码不能被攻击者触发
2.openEuler-20.03-LTS-SP4:正常修复
3.openEuler-22.03-LTS-SP1:正常修复
4.openEuler-22.03-LTS-SP3:正常修复
5.openEuler-22.03-LTS-SP4:正常修复
6.openEuler-24.03-LTS:正常修复
7.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
8.openEuler-24.03-LTS-SP1:正常修复

@sanglipeng 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态  | 分析项目 | 内容 |
|:--:|:--:|---------|
|已分析|1.影响性分析说明|In the Linux kernel, the following vulnerability has been resolved:sh: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACKWhen CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS are selected,cpu_max_bits_warn() generates a runtime warning similar as below whenshowing /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit)instead of NR_CPUS to iterate CPUs.[    3.052463] ------------[ cut here ]------------[    3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0[    3.070072] Modules linked in: efivarfs autofs4[    3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052[    3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000[    3.109127]         9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430[    3.118774]         90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff[    3.128412]         0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890[    3.138056]         0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa[    3.147711]         ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000[    3.157364]         900000000101c998 0000000000000004 9000000000ef7430 0000000000000000[    3.167012]         0000000000000009 000000000000006c 0000000000000000 0000000000000000[    3.176641]         9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286[    3.186260]         00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c[    3.195868]         ...[    3.199917] Call Trace:[    3.203941] [&lt;90000000002086d8&gt;] show_stack+0x38/0x14c[    3.210666] [&lt;9000000000cf846c&gt;] dump_stack_lvl+0x60/0x88[    3.217625] [&lt;900000000023d268&gt;] __warn+0xd0/0x100[    3.223958] [&lt;9000000000cf3c90&gt;] warn_slowpath_fmt+0x7c/0xcc[    3.231150] [&lt;9000000000210220&gt;] show_cpuinfo+0x5e8/0x5f0[    3.238080] [&lt;90000000004f578c&gt;] seq_read_iter+0x354/0x4b4[    3.245098] [&lt;90000000004c2e90&gt;] new_sync_read+0x17c/0x1c4[    3.252114] [&lt;90000000004c5174&gt;] vfs_read+0x138/0x1d0[    3.258694] [&lt;90000000004c55f8&gt;] ksys_read+0x70/0x100[    3.265265] [&lt;9000000000cfde9c&gt;] do_syscall+0x7c/0x94[    3.271820] [&lt;9000000000202fe4&gt;] handle_syscall+0xc4/0x160[    3.281824] ---[ end trace 8b484262b4b8c24c ]---The Linux kernel CVE team has assigned CVE-2022-49034 to this issue.|
|已分析|2.openEulerScore|3.9|
|已分析|3.openEulerVector|AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L|
|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-22.03-LTS-SP4:受影响,openEuler-24.03-LTS:受影响,openEuler-24.03-LTS-SP1:受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响|
|已分析|5.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,openEuler-24.03-LTS-SP1:否|
|已分析|6.原因说明|openEuler-20.03-LTS-SP4:正常修复,openEuler-22.03-LTS-SP1:正常修复,openEuler-22.03-LTS-SP3:正常修复,openEuler-22.03-LTS-SP4:正常修复,openEuler-24.03-LTS:正常修复,openEuler-24.03-LTS-SP1:正常修复,master:不受影响-漏洞代码不能被攻击者触发,openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发|

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CVE-2022-49034

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

sh: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK

When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS are selected,
cpu_max_bits_warn() generates a runtime warning similar as below when
showing /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit)
instead of NR_CPUS to iterate CPUs.

[    3.052463] ------------[ cut here ]------------
[    3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0
[    3.070072] Modules linked in: efivarfs autofs4
[    3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052
[    3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000
[    3.109127]         9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430
[    3.118774]         90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff
[    3.128412]         0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890
[    3.138056]         0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa
[    3.147711]         ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000
[    3.157364]         900000000101c998 0000000000000004 9000000000ef7430 0000000000000000
[    3.167012]         0000000000000009 000000000000006c 0000000000000000 0000000000000000
[    3.176641]         9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286
[    3.186260]         00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c
[    3.195868]         ...
[    3.199917] Call Trace:
[    3.203941] [&lt;90000000002086d8&gt;] show_stack+0x38/0x14c
[    3.210666] [&lt;9000000000cf846c&gt;] dump_stack_lvl+0x60/0x88
[    3.217625] [&lt;900000000023d268&gt;] __warn+0xd0/0x100
[    3.223958] [&lt;9000000000cf3c90&gt;] warn_slowpath_fmt+0x7c/0xcc
[    3.231150] [&lt;9000000000210220&gt;] show_cpuinfo+0x5e8/0x5f0
[    3.238080] [&lt;90000000004f578c&gt;] seq_read_iter+0x354/0x4b4
[    3.245098] [&lt;90000000004c2e90&gt;] new_sync_read+0x17c/0x1c4
[    3.252114] [&lt;90000000004c5174&gt;] vfs_read+0x138/0x1d0
[    3.258694] [&lt;90000000004c55f8&gt;] ksys_read+0x70/0x100
[    3.265265] [&lt;9000000000cfde9c&gt;] do_syscall+0x7c/0x94
[    3.271820] [&lt;9000000000202fe4&gt;] handle_syscall+0xc4/0x160
[    3.281824] ---[ end trace 8b484262b4b8c24c ]---

The Linux kernel CVE team has assigned CVE-2022-49034 to this issue.

openEuler评分:(评分和向量)
3.9
CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L