CVE-2022-49862

一、漏洞信息
漏洞编号：CVE-2022-49862
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.4.0,6.6.0
CVSS V3.0分值：
BaseScore：5.5 Medium
Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_headerThis is a follow-up for commit 974cb0e3e7c9 ( tipc: fix uninit-valuein tipc_nl_compat_name_table_dump ) where it should have type castedsizeof(..) to int to work when TLV_GET_DATA_LEN() returns a negativevalue.syzbot reported a call trace because of it: BUG: KMSAN: uninit-value in ... tipc_nl_compat_name_table_dump+0x841/0xea0 net/tipc/netlink_compat.c:934 __tipc_nl_compat_dumpit+0xab2/0x1320 net/tipc/netlink_compat.c:238 tipc_nl_compat_dumpit+0x991/0xb50 net/tipc/netlink_compat.c:321 tipc_nl_compat_recv+0xb6e/0x1640 net/tipc/netlink_compat.c:1324 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline] genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0x103f/0x1260 net/netlink/genetlink.c:792 netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501 genl_rcv+0x3c/0x50 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline]
漏洞公开时间：2025-05-01 23:16:11
漏洞创建时间：2025-05-02 00:42:59
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2022-49862

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/082707d3df191bf5bb8801d43e4ce3dea39ca173
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1c075b192fe41030457cd4a5f7dea730412bca40
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/301caa06091af4d5cf056ac8249cbda4e6029c6a
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/36769b9477491a7af6635863bd950309c1e1b96c
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/55a253a6753a603e80b95932ca971ba514aa6ce7
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6cee2c60bd168279852ac7dbe54c2b70d1028644
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a0ead1d648df9c456baec832b494513ef405949a
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f31dd158580940938f77514b87337a777520185a
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-49862	https://bugzilla.suse.com/show_bug.cgi?id=1242755
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2022-49862	https://bugzilla.suse.com/show_bug.cgi?id=1242755
suse_bugzilla	https://git.kernel.org/stable/c/082707d3df191bf5bb8801d43e4ce3dea39ca173	https://bugzilla.suse.com/show_bug.cgi?id=1242755
suse_bugzilla	https://git.kernel.org/stable/c/1c075b192fe41030457cd4a5f7dea730412bca40	https://bugzilla.suse.com/show_bug.cgi?id=1242755
suse_bugzilla	https://git.kernel.org/stable/c/301caa06091af4d5cf056ac8249cbda4e6029c6a	https://bugzilla.suse.com/show_bug.cgi?id=1242755
suse_bugzilla	https://git.kernel.org/stable/c/36769b9477491a7af6635863bd950309c1e1b96c	https://bugzilla.suse.com/show_bug.cgi?id=1242755
suse_bugzilla	https://git.kernel.org/stable/c/55a253a6753a603e80b95932ca971ba514aa6ce7	https://bugzilla.suse.com/show_bug.cgi?id=1242755
suse_bugzilla	https://git.kernel.org/stable/c/6cee2c60bd168279852ac7dbe54c2b70d1028644	https://bugzilla.suse.com/show_bug.cgi?id=1242755
suse_bugzilla	https://git.kernel.org/stable/c/a0ead1d648df9c456baec832b494513ef405949a	https://bugzilla.suse.com/show_bug.cgi?id=1242755
suse_bugzilla	https://git.kernel.org/stable/c/f31dd158580940938f77514b87337a777520185a	https://bugzilla.suse.com/show_bug.cgi?id=1242755
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2022/CVE-2022-49862.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1242755
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2363458	https://bugzilla.suse.com/show_bug.cgi?id=1242755
anolis		https://anas.openanolis.cn/cves/detail/CVE-2022-49862

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
		https://git.kernel.org/stable/c/082707d3df191bf5bb8801d43e4ce3dea39ca173		nvd
		https://git.kernel.org/stable/c/1c075b192fe41030457cd4a5f7dea730412bca40		nvd
		https://git.kernel.org/stable/c/301caa06091af4d5cf056ac8249cbda4e6029c6a		nvd
		https://git.kernel.org/stable/c/36769b9477491a7af6635863bd950309c1e1b96c		nvd
		https://git.kernel.org/stable/c/55a253a6753a603e80b95932ca971ba514aa6ce7		nvd
		https://git.kernel.org/stable/c/6cee2c60bd168279852ac7dbe54c2b70d1028644		nvd
		https://git.kernel.org/stable/c/a0ead1d648df9c456baec832b494513ef405949a		nvd
		https://git.kernel.org/stable/c/f31dd158580940938f77514b87337a777520185a		nvd

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:tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_headerThis is a follow-up for commit 974cb0e3e7c9 ("tipc: fix uninit-valuein tipc_nl_compat_name_table_dump") where it should have type castedsizeof(..) to int to work when TLV_GET_DATA_LEN() returns a negativevalue.syzbot reported a call trace because of it: BUG: KMSAN: uninit-value in ... tipc_nl_compat_name_table_dump+0x841/0xea0 net/tipc/netlink_compat.c:934 __tipc_nl_compat_dumpit+0xab2/0x1320 net/tipc/netlink_compat.c:238 tipc_nl_compat_dumpit+0x991/0xb50 net/tipc/netlink_compat.c:321 tipc_nl_compat_recv+0xb6e/0x1640 net/tipc/netlink_compat.c:1324 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline] genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0x103f/0x1260 net/netlink/genetlink.c:792 netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501 genl_rcv+0x3c/0x50 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline]The Linux kernel CVE team has assigned CVE-2022-49862 to this issue.
openEuler评分：
5.5
Vector：CVSS：3.0/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(4.19.90):受影响
2.master(6.6.0):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.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.openEuler-20.03-LTS-SP4(4.19.90):正常修复
2.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
3.openEuler-22.03-LTS-SP3(5.10.0):不受影响-漏洞代码不能被攻击者触发
4.openEuler-22.03-LTS-SP4(5.10.0):不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS(6.6.0):不受影响-漏洞代码不能被攻击者触发
6.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1(6.6.0):不受影响-漏洞代码不能被攻击者触发
8.openEuler-24.03-LTS-SP2(6.6.0):不受影响-漏洞代码不能被攻击者触发

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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):

原因说明填写请参考下方表格(注意：版本是否受影响和版本的原因说明必须对应，例如master版本分支受影响，那原因说明只能是受影响对应的原因之一!)：

分支状态	原因说明
受影响	正常修复
受影响	暂不修复-漏洞仍在分析中
受影响	暂不修复-暂无解决方案或补丁
受影响	暂不修复-待升级版本修复
受影响	不修复-超出修复范围
受影响	不修复-特殊原因导致不再修复
不受影响	不受影响-组件不存在
不受影响	不受影响-已有内置的内联控制或缓解措施
不受影响	不受影响-漏洞代码不能被攻击者触发
不受影响	不受影响-漏洞代码不在执行路径
不受影响	不受影响-漏洞代码不存在

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-2022-49862	None	None	https://git.kernel.org/stable/c/f31dd158580940938f77514b87337a777520185a https://git.kernel.org/stable/c/6cee2c60bd168279852ac7dbe54c2b70d1028644 https://git.kernel.org/stable/c/082707d3df191bf5bb8801d43e4ce3dea39ca173 https://git.kernel.org/stable/c/55a253a6753a603e80b95932ca971ba514aa6ce7 https://git.kernel.org/stable/c/36769b9477491a7af6635863bd950309c1e1b96c https://git.kernel.org/stable/c/a0ead1d648df9c456baec832b494513ef405949a https://git.kernel.org/stable/c/301caa06091af4d5cf056ac8249cbda4e6029c6a https://git.kernel.org/stable/c/1c075b192fe41030457cd4a5f7dea730412bca40
https://www.opencve.io/cve/CVE-2022-49862	None	None	https://git.kernel.org/stable/c/f31dd158580940938f77514b87337a777520185a https://git.kernel.org/stable/c/6cee2c60bd168279852ac7dbe54c2b70d1028644 https://git.kernel.org/stable/c/082707d3df191bf5bb8801d43e4ce3dea39ca173 https://git.kernel.org/stable/c/55a253a6753a603e80b95932ca971ba514aa6ce7 https://git.kernel.org/stable/c/36769b9477491a7af6635863bd950309c1e1b96c https://git.kernel.org/stable/c/a0ead1d648df9c456baec832b494513ef405949a https://git.kernel.org/stable/c/301caa06091af4d5cf056ac8249cbda4e6029c6a https://git.kernel.org/stable/c/1c075b192fe41030457cd4a5f7dea730412bca40
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2022-49862
https://security-tracker.debian.org/tracker/CVE-2022-49862
http://www.cnnvd.org.cn/web/vulnerability/queryLds.tag?qcvCnnvdid=CVE-2022-49862

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-2022-49862

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

tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header

This is a follow-up for commit 974cb0e3e7c9 ("tipc: fix uninit-value
in tipc_nl_compat_name_table_dump") where it should have type casted
sizeof(..) to int to work when TLV_GET_DATA_LEN() returns a negative
value.

syzbot reported a call trace because of it:

BUG: KMSAN: uninit-value in ...
tipc_nl_compat_name_table_dump+0x841/0xea0 net/tipc/netlink_compat.c:934
__tipc_nl_compat_dumpit+0xab2/0x1320 net/tipc/netlink_compat.c:238
tipc_nl_compat_dumpit+0x991/0xb50 net/tipc/netlink_compat.c:321
tipc_nl_compat_recv+0xb6e/0x1640 net/tipc/netlink_compat.c:1324
genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
genl_rcv_msg+0x103f/0x1260 net/netlink/genetlink.c:792
netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501
genl_rcv+0x3c/0x50 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]

The Linux kernel CVE team has assigned CVE-2022-49862 to this issue.

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.master(6.1.0):不受影响
2.openEuler-20.03-LTS-SP4: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:正常修复
3.openEuler-22.03-LTS-SP3:不受影响-漏洞代码不能被攻击者触发
4.openEuler-22.03-LTS-SP4:不受影响-漏洞代码不能被攻击者触发
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:tipc: fix the msg-&gt;req tlv len check in tipc_nl_compat_name_table_dump_headerThis is a follow-up for commit 974cb0e3e7c9 (&#34;tipc: fix uninit-valuein tipc_nl_compat_name_table_dump&#34;) where it should have type castedsizeof(..) to int to work when TLV_GET_DATA_LEN() returns a negativevalue.syzbot reported a call trace because of it:  BUG: KMSAN: uninit-value in ...   tipc_nl_compat_name_table_dump+0x841/0xea0 net/tipc/netlink_compat.c:934   __tipc_nl_compat_dumpit+0xab2/0x1320 net/tipc/netlink_compat.c:238   tipc_nl_compat_dumpit+0x991/0xb50 net/tipc/netlink_compat.c:321   tipc_nl_compat_recv+0xb6e/0x1640 net/tipc/netlink_compat.c:1324   genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]   genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]   genl_rcv_msg+0x103f/0x1260 net/netlink/genetlink.c:792   netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501   genl_rcv+0x3c/0x50 net/netlink/genetlink.c:803   netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]   netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345   netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921   sock_sendmsg_nosec net/socket.c:714 [inline]   sock_sendmsg net/socket.c:734 [inline]The Linux kernel CVE team has assigned CVE-2022-49862 to this issue.|
|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,master: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|openEuler-20.03-LTS-SP4:正常修复,master:不受影响-漏洞代码不能被攻击者触发,openEuler-22.03-LTS-SP3:不受影响-漏洞代码不能被攻击者触发,openEuler-22.03-LTS-SP4: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|

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src-openEuler/kernel

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CVE-2022-49862

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