CVE-2022-49911

一、漏洞信息
漏洞编号：CVE-2022-49911
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.1.8,6.4.0,6.6.0
CVSS V3.0分值：
BaseScore：N/A None
Vector：CVSS：3.0/
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:netfilter: ipset: enforce documented limit to prevent allocating huge memoryDaniel Xu reported that the hash:net,iface type of the ipset subsystem doesnot limit adding the same network with different interfaces to a set, whichcan lead to huge memory usage or allocation failure.The quick reproducer is $ipset create ACL.IN.ALL_PERMIT hash:net,iface hashsize 1048576 timeout 0$ for i in $(seq 0 100); do /sbin/ipset add ACL.IN.ALL_PERMIT 0.0.0.0/0,kaf_$ i timeout 0 -exist; doneThe backtrace when vmalloc fails: [Tue Oct 25 00:13:08 2022] ipset: vmalloc error: size 1073741848, exceeds total pages <...> [Tue Oct 25 00:13:08 2022] Call Trace: [Tue Oct 25 00:13:08 2022] [Tue Oct 25 00:13:08 2022] dump_stack_lvl+0x48/0x60 [Tue Oct 25 00:13:08 2022] warn_alloc+0x155/0x180 [Tue Oct 25 00:13:08 2022] __vmalloc_node_range+0x72a/0x760 [Tue Oct 25 00:13:08 2022] ? hash_netiface4_add+0x7c0/0xb20 [Tue Oct 25 00:13:08 2022] ? __kmalloc_large_node+0x4a/0x90 [Tue Oct 25 00:13:08 2022] kvmalloc_node+0xa6/0xd0 [Tue Oct 25 00:13:08 2022] ? hash_netiface4_resize+0x99/0x710 <...>The fix is to enforce the limit documented in the ipset(8) manpage:> The internal restriction of the hash:net,iface set type is that the same> network prefix cannot be stored with more than 64 different interfaces> in a single set.
漏洞公开时间：2025-05-01 23:16:16
漏洞创建时间：2025-05-02 00:23:25
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2022-49911

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/42d20d5e24575c9afa2d66d9a51e7386db9514f5
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/510841da1fcc16f702440ab58ef0b4d82a9056b7
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a37ef32fe5956fe9248df68f6a61997845ba047e
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-49911	https://bugzilla.suse.com/show_bug.cgi?id=1242471
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2022-49911	https://bugzilla.suse.com/show_bug.cgi?id=1242471
suse_bugzilla	https://git.kernel.org/stable/c/42d20d5e24575c9afa2d66d9a51e7386db9514f5	https://bugzilla.suse.com/show_bug.cgi?id=1242471
suse_bugzilla	https://git.kernel.org/stable/c/510841da1fcc16f702440ab58ef0b4d82a9056b7	https://bugzilla.suse.com/show_bug.cgi?id=1242471
suse_bugzilla	https://git.kernel.org/stable/c/a37ef32fe5956fe9248df68f6a61997845ba047e	https://bugzilla.suse.com/show_bug.cgi?id=1242471
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2022/CVE-2022-49911.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1242471
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2363421	https://bugzilla.suse.com/show_bug.cgi?id=1242471
anolis		https://anas.openanolis.cn/cves/detail/CVE-2022-49911

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_kernel	5.15.78	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=42d20d5e24575c9afa2d66d9a51e7386db9514f5	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=ccf0a4b7fc688561428290265e4effde41446668	linuxkernelcves
linux_kernel	6.0.8	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=a37ef32fe5956fe9248df68f6a61997845ba047e	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=ccf0a4b7fc688561428290265e4effde41446668	linuxkernelcves
linux_kernel	6.1	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=510841da1fcc16f702440ab58ef0b4d82a9056b7	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=ccf0a4b7fc688561428290265e4effde41446668	linuxkernelcves

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:netfilter: ipset: enforce documented limit to prevent allocating huge memoryDaniel Xu reported that the hash:net,iface type of the ipset subsystem doesnot limit adding the same network with different interfaces to a set, whichcan lead to huge memory usage or allocation failure.The quick reproducer is $ipset create ACL.IN.ALL_PERMIT hash:net,iface hashsize 1048576 timeout 0$ for i in $(seq 0 100); do /sbin/ipset add ACL.IN.ALL_PERMIT 0.0.0.0/0,kaf_$ i timeout 0 -exist; doneThe backtrace when vmalloc fails: [Tue Oct 25 00:13:08 2022] ipset: vmalloc error: size 1073741848, exceeds total pages <...> [Tue Oct 25 00:13:08 2022] Call Trace: [Tue Oct 25 00:13:08 2022] <TASK> [Tue Oct 25 00:13:08 2022] dump_stack_lvl+0x48/0x60 [Tue Oct 25 00:13:08 2022] warn_alloc+0x155/0x180 [Tue Oct 25 00:13:08 2022] __vmalloc_node_range+0x72a/0x760 [Tue Oct 25 00:13:08 2022] ? hash_netiface4_add+0x7c0/0xb20 [Tue Oct 25 00:13:08 2022] ? __kmalloc_large_node+0x4a/0x90 [Tue Oct 25 00:13:08 2022] kvmalloc_node+0xa6/0xd0 [Tue Oct 25 00:13:08 2022] ? hash_netiface4_resize+0x99/0x710 <...>The fix is to enforce the limit documented in the ipset(8) manpage:<spanclass= q >> The internal restriction of the hash:net,iface set type is that the same> network prefix cannot be stored with more than 64 different interfaces> in a single set.The Linux kernel CVE team has assigned CVE-2022-49911 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.master(6.6.0):不受影响
2.openEuler-20.03-LTS-SP4(4.19.90):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.openEuler-24.03-LTS(6.6.0):不受影响
6.openEuler-24.03-LTS-Next(6.6.0):不受影响
7.openEuler-24.03-LTS-SP1(6.6.0):不受影响
8.openEuler-24.03-LTS-SP2(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
1.master(6.6.0):否
2.openEuler-20.03-LTS-SP4(4.19.90):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.openEuler-22.03-LTS-SP4(5.10.0):否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-24.03-LTS-SP1(6.6.0):否
8.openEuler-24.03-LTS-SP2(6.6.0):否

原因说明：
1.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
2.openEuler-24.03-LTS(6.6.0):不受影响-漏洞代码不能被攻击者触发
3.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发
4.openEuler-24.03-LTS-SP1(6.6.0):不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS-SP2(6.6.0):不受影响-漏洞代码不能被攻击者触发
6.openEuler-20.03-LTS-SP4(4.19.90):不受影响-漏洞代码不存在
7.openEuler-22.03-LTS-SP3(5.10.0):不受影响-漏洞代码不存在
8.openEuler-22.03-LTS-SP4(5.10.0):不受影响-漏洞代码不存在

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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), 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-SP3(5.10.0):
4.openEuler-22.03-LTS-SP4(5.10.0):
5.openEuler-24.03-LTS(6.6.0):
6.openEuler-24.03-LTS-Next(6.6.0):
7.openEuler-24.03-LTS-SP1(6.6.0):
8.openEuler-24.03-LTS-SP2(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-SP3(5.10.0):
4.openEuler-22.03-LTS-SP4(5.10.0):
5.openEuler-24.03-LTS(6.6.0):
6.openEuler-24.03-LTS-Next(6.6.0):
7.openEuler-24.03-LTS-SP1(6.6.0):
8.openEuler-24.03-LTS-SP2(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-SP3(5.10.0):
4.openEuler-22.03-LTS-SP4(5.10.0):
5.openEuler-24.03-LTS(6.6.0):
6.openEuler-24.03-LTS-Next(6.6.0):
7.openEuler-24.03-LTS-SP1(6.6.0):
8.openEuler-24.03-LTS-SP2(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

参考网址	关联pr	状态	补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2022-49911	None	None	https://git.kernel.org/stable/c/510841da1fcc16f702440ab58ef0b4d82a9056b7 https://git.kernel.org/stable/c/a37ef32fe5956fe9248df68f6a61997845ba047e https://git.kernel.org/stable/c/42d20d5e24575c9afa2d66d9a51e7386db9514f5
https://ubuntu.com/security/CVE-2022-49911
https://www.opencve.io/cve/CVE-2022-49911	None	None	https://git.kernel.org/stable/c/510841da1fcc16f702440ab58ef0b4d82a9056b7 https://git.kernel.org/stable/c/a37ef32fe5956fe9248df68f6a61997845ba047e https://git.kernel.org/stable/c/42d20d5e24575c9afa2d66d9a51e7386db9514f5
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2022-49911
https://security-tracker.debian.org/tracker/CVE-2022-49911
http://www.cnnvd.org.cn/web/vulnerability/queryLds.tag?qcvCnnvdid=CVE-2022-49911

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-2022-49911

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

netfilter: ipset: enforce documented limit to prevent allocating huge memory

Daniel Xu reported that the hash:net,iface type of the ipset subsystem does
not limit adding the same network with different interfaces to a set, which
can lead to huge memory usage or allocation failure.

The quick reproducer is

$ipset create ACL.IN.ALL_PERMIT hash:net,iface hashsize 1048576 timeout 0$ for i in $(seq 0 100); do /sbin/ipset add ACL.IN.ALL_PERMIT 0.0.0.0/0,kaf_$ i timeout 0 -exist; done

The backtrace when vmalloc fails:

    [Tue Oct 25 00:13:08 2022] ipset: vmalloc error: size 1073741848, exceeds total pages
    &lt;...&gt;
    [Tue Oct 25 00:13:08 2022] Call Trace:
    [Tue Oct 25 00:13:08 2022]  &lt;TASK&gt;
    [Tue Oct 25 00:13:08 2022]  dump_stack_lvl+0x48/0x60
    [Tue Oct 25 00:13:08 2022]  warn_alloc+0x155/0x180
    [Tue Oct 25 00:13:08 2022]  __vmalloc_node_range+0x72a/0x760
    [Tue Oct 25 00:13:08 2022]  ? hash_netiface4_add+0x7c0/0xb20
    [Tue Oct 25 00:13:08 2022]  ? __kmalloc_large_node+0x4a/0x90
    [Tue Oct 25 00:13:08 2022]  kvmalloc_node+0xa6/0xd0
    [Tue Oct 25 00:13:08 2022]  ? hash_netiface4_resize+0x99/0x710
    &lt;...&gt;

The fix is to enforce the limit documented in the ipset(8) manpage:

> The internal restriction of the hash:net,iface set type is that the same
> network prefix cannot be stored with more than 64 different interfaces
> in a single set.

The Linux kernel CVE team has assigned CVE-2022-49911 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.master(6.1.0):不受影响
2.openEuler-20.03-LTS-SP4: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.openEuler-24.03-LTS:不受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1:不受影响
8.openEuler-24.03-LTS-SP2:不受影响

修复是否涉及abi变化(是/否)：
1.master(6.1.0):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS-SP3:否
4.openEuler-22.03-LTS-SP4:否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-24.03-LTS-SP1:否
8.openEuler-24.03-LTS-SP2: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:不受影响-漏洞代码不存在
3.openEuler-22.03-LTS-SP3:不受影响-漏洞代码不存在
4.openEuler-22.03-LTS-SP4:不受影响-漏洞代码不存在
5.openEuler-24.03-LTS:不受影响-漏洞代码不能被攻击者触发
6.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1:不受影响-漏洞代码不能被攻击者触发
8.openEuler-24.03-LTS-SP2:不受影响-漏洞代码不能被攻击者触发

@CTC-XiboWang 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:netfilter: ipset: enforce documented limit to prevent allocating huge memoryDaniel Xu reported that the hash:net,iface type of the ipset subsystem doesnot limit adding the same network with different interfaces to a set, whichcan lead to huge memory usage or allocation failure.The quick reproducer is$ ipset create ACL.IN.ALL_PERMIT hash:net,iface hashsize 1048576 timeout 0$ for i in $(seq 0 100); do /sbin/ipset add ACL.IN.ALL_PERMIT 0.0.0.0/0,kaf_$i timeout 0 -exist; doneThe backtrace when vmalloc fails:        [Tue Oct 25 00:13:08 2022] ipset: vmalloc error: size 1073741848, exceeds total pages        &lt;...&gt;        [Tue Oct 25 00:13:08 2022] Call Trace:        [Tue Oct 25 00:13:08 2022]  &lt;TASK&gt;        [Tue Oct 25 00:13:08 2022]  dump_stack_lvl+0x48/0x60        [Tue Oct 25 00:13:08 2022]  warn_alloc+0x155/0x180        [Tue Oct 25 00:13:08 2022]  __vmalloc_node_range+0x72a/0x760        [Tue Oct 25 00:13:08 2022]  ? hash_netiface4_add+0x7c0/0xb20        [Tue Oct 25 00:13:08 2022]  ? __kmalloc_large_node+0x4a/0x90        [Tue Oct 25 00:13:08 2022]  kvmalloc_node+0xa6/0xd0        [Tue Oct 25 00:13:08 2022]  ? hash_netiface4_resize+0x99/0x710        &lt;...&gt;The fix is to enforce the limit documented in the ipset(8) manpage:<spanclass="q">&gt;  The internal restriction of the hash:net,iface set type is that the same&gt;  network prefix cannot be stored with more than 64 different interfaces&gt;  in a single set.</span>The Linux kernel CVE team has assigned CVE-2022-49911 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|master:不受影响,openEuler-20.03-LTS-SP4:不受影响,openEuler-22.03-LTS-SP3:不受影响,openEuler-22.03-LTS-SP4:不受影响,openEuler-24.03-LTS:不受影响,openEuler-24.03-LTS-Next:不受影响,openEuler-24.03-LTS-SP1:不受影响,openEuler-24.03-LTS-SP2:不受影响|
|已分析|5.是否涉及abi变化|master:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP3:否,openEuler-22.03-LTS-SP4:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-24.03-LTS-SP1:否,openEuler-24.03-LTS-SP2:否|
|已分析|6.原因说明|master:不受影响-漏洞代码不能被攻击者触发,openEuler-24.03-LTS: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,openEuler-24.03-LTS-SP1:不受影响-漏洞代码不能被攻击者触发,openEuler-24.03-LTS-SP2:不受影响-漏洞代码不能被攻击者触发,openEuler-20.03-LTS-SP4:不受影响-漏洞代码不存在,openEuler-22.03-LTS-SP3:不受影响-漏洞代码不存在,openEuler-22.03-LTS-SP4:不受影响-漏洞代码不存在|

**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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