CVE-2022-49904

一、漏洞信息
漏洞编号：CVE-2022-49904
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:net, neigh: Fix null-ptr-deref in neigh_table_clear()When IPv6 module gets initialized but hits an error in the middle,kenel panic with:KASAN: null-ptr-deref in range [0x0000000000000598-0x000000000000059f]CPU: 1 PID: 361 Comm: insmodHardware name: QEMU Standard PC (i440FX + PIIX, 1996)RIP: 0010:__neigh_ifdown.isra.0+0x24b/0x370RSP: 0018:ffff888012677908 EFLAGS: 00000202...Call Trace: neigh_table_clear+0x94/0x2d0 ndisc_cleanup+0x27/0x40 [ipv6] inet6_init+0x21c/0x2cb [ipv6] do_one_initcall+0xd3/0x4d0 do_init_module+0x1ae/0x670...Kernel panic - not syncing: Fatal exceptionWhen ipv6 initialization fails, it will try to cleanup and calls:neigh_table_clear() neigh_ifdown(tbl, NULL) pneigh_queue_purge(&tbl->proxy_queue, dev_net(dev == NULL)) # dev_net(NULL) triggers null-ptr-deref.Fix it by passing NULL to pneigh_queue_purge() in neigh_ifdown() if devis NULL, to make kernel not panic immediately.
漏洞公开时间：2025-05-01 23:16:15
漏洞创建时间：2025-05-02 00:57:14
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2022-49904

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/0d38b4ca6679e72860ff8730e79bb99d0e9fa3b0
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1c89642e7f2b7ecc9635610653f5c2f0276c0051
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2b45d6d0c41cb9593868e476681efb1aae5078a1
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a99a8ec4c62180c889482a2ff6465033e0743458
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b49f6b2f21f543d4dc88fb7b1ec2adccb822f27c
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b736592de2aa53aee2d48d6b129bc0c892007bbe
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f8017317cb0b279b8ab98b0f3901a2e0ac880dad
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-49904	https://bugzilla.suse.com/show_bug.cgi?id=1242451
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2022-49904	https://bugzilla.suse.com/show_bug.cgi?id=1242451
suse_bugzilla	https://git.kernel.org/stable/c/0d38b4ca6679e72860ff8730e79bb99d0e9fa3b0	https://bugzilla.suse.com/show_bug.cgi?id=1242451
suse_bugzilla	https://git.kernel.org/stable/c/1c89642e7f2b7ecc9635610653f5c2f0276c0051	https://bugzilla.suse.com/show_bug.cgi?id=1242451
suse_bugzilla	https://git.kernel.org/stable/c/2b45d6d0c41cb9593868e476681efb1aae5078a1	https://bugzilla.suse.com/show_bug.cgi?id=1242451
suse_bugzilla	https://git.kernel.org/stable/c/a99a8ec4c62180c889482a2ff6465033e0743458	https://bugzilla.suse.com/show_bug.cgi?id=1242451
suse_bugzilla	https://git.kernel.org/stable/c/b49f6b2f21f543d4dc88fb7b1ec2adccb822f27c	https://bugzilla.suse.com/show_bug.cgi?id=1242451
suse_bugzilla	https://git.kernel.org/stable/c/b736592de2aa53aee2d48d6b129bc0c892007bbe	https://bugzilla.suse.com/show_bug.cgi?id=1242451
suse_bugzilla	https://git.kernel.org/stable/c/f8017317cb0b279b8ab98b0f3901a2e0ac880dad	https://bugzilla.suse.com/show_bug.cgi?id=1242451
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2022/CVE-2022-49904.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1242451
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2363404	https://bugzilla.suse.com/show_bug.cgi?id=1242451
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2025050102-CVE-2022-49904-5009@gregkh/T	https://bugzilla.redhat.com/show_bug.cgi?id=2363404
anolis		https://anas.openanolis.cn/cves/detail/CVE-2022-49904

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/0d38b4ca6679e72860ff8730e79bb99d0e9fa3b0		nvd
		https://git.kernel.org/stable/c/1c89642e7f2b7ecc9635610653f5c2f0276c0051		nvd
		https://git.kernel.org/stable/c/2b45d6d0c41cb9593868e476681efb1aae5078a1		nvd
		https://git.kernel.org/stable/c/a99a8ec4c62180c889482a2ff6465033e0743458		nvd
		https://git.kernel.org/stable/c/b49f6b2f21f543d4dc88fb7b1ec2adccb822f27c		nvd
		https://git.kernel.org/stable/c/b736592de2aa53aee2d48d6b129bc0c892007bbe		nvd
		https://git.kernel.org/stable/c/f8017317cb0b279b8ab98b0f3901a2e0ac880dad		nvd
linux_kernel	4.14.299	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0d38b4ca6679e72860ff8730e79bb99d0e9fa3b0	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9bbaed571c4bf1b62ac8703cb359dc090efc3455	linuxkernelcves
linux_kernel	4.19.265	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b736592de2aa53aee2d48d6b129bc0c892007bbe	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9bbaed571c4bf1b62ac8703cb359dc090efc3455	linuxkernelcves
linux_kernel	5.4.224	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b49f6b2f21f543d4dc88fb7b1ec2adccb822f27c	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9bbaed571c4bf1b62ac8703cb359dc090efc3455	linuxkernelcves
linux_kernel	5.10.154	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1c89642e7f2b7ecc9635610653f5c2f0276c0051	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9bbaed571c4bf1b62ac8703cb359dc090efc3455	linuxkernelcves
linux_kernel	5.15.78	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=2b45d6d0c41cb9593868e476681efb1aae5078a1	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9bbaed571c4bf1b62ac8703cb359dc090efc3455	linuxkernelcves
linux_kernel	6.0.8	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=a99a8ec4c62180c889482a2ff6465033e0743458	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9bbaed571c4bf1b62ac8703cb359dc090efc3455	linuxkernelcves
linux_kernel	6.1	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f8017317cb0b279b8ab98b0f3901a2e0ac880dad	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9bbaed571c4bf1b62ac8703cb359dc090efc3455	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:net, neigh: Fix null-ptr-deref in neigh_table_clear()When IPv6 module gets initialized but hits an error in the middle,kenel panic with:KASAN: null-ptr-deref in range [0x0000000000000598-0x000000000000059f]CPU: 1 PID: 361 Comm: insmodHardware name: QEMU Standard PC (i440FX + PIIX, 1996)RIP: 0010:__neigh_ifdown.isra.0+0x24b/0x370RSP: 0018:ffff888012677908 EFLAGS: 00000202...Call Trace: <TASK> neigh_table_clear+0x94/0x2d0 ndisc_cleanup+0x27/0x40 [ipv6] inet6_init+0x21c/0x2cb [ipv6] do_one_initcall+0xd3/0x4d0 do_init_module+0x1ae/0x670...Kernel panic - not syncing: Fatal exceptionWhen ipv6 initialization fails, it will try to cleanup and calls:neigh_table_clear() neigh_ifdown(tbl, NULL) pneigh_queue_purge(&tbl->proxy_queue, dev_net(dev == NULL)) # dev_net(NULL) triggers null-ptr-deref.Fix it by passing NULL to pneigh_queue_purge() in neigh_ifdown() if devis NULL, to make kernel not panic immediately.The Linux kernel CVE team has assigned CVE-2022-49904 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:受影响
2.master: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:否
2.openEuler-20.03-LTS-SP4: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:正常修复
2.master: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):

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-2022-49904	None	None	https://git.kernel.org/stable/c/2b45d6d0c41cb9593868e476681efb1aae5078a1 https://git.kernel.org/stable/c/0d38b4ca6679e72860ff8730e79bb99d0e9fa3b0 https://git.kernel.org/stable/c/b736592de2aa53aee2d48d6b129bc0c892007bbe https://git.kernel.org/stable/c/f8017317cb0b279b8ab98b0f3901a2e0ac880dad https://git.kernel.org/stable/c/b49f6b2f21f543d4dc88fb7b1ec2adccb822f27c https://git.kernel.org/stable/c/a99a8ec4c62180c889482a2ff6465033e0743458 https://git.kernel.org/stable/c/1c89642e7f2b7ecc9635610653f5c2f0276c0051
https://ubuntu.com/security/CVE-2022-49904
https://www.opencve.io/cve/CVE-2022-49904	None	None	https://git.kernel.org/stable/c/2b45d6d0c41cb9593868e476681efb1aae5078a1 https://git.kernel.org/stable/c/0d38b4ca6679e72860ff8730e79bb99d0e9fa3b0 https://git.kernel.org/stable/c/b736592de2aa53aee2d48d6b129bc0c892007bbe https://git.kernel.org/stable/c/f8017317cb0b279b8ab98b0f3901a2e0ac880dad https://git.kernel.org/stable/c/b49f6b2f21f543d4dc88fb7b1ec2adccb822f27c https://git.kernel.org/stable/c/a99a8ec4c62180c889482a2ff6465033e0743458 https://git.kernel.org/stable/c/1c89642e7f2b7ecc9635610653f5c2f0276c0051
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2022-49904
https://security-tracker.debian.org/tracker/CVE-2022-49904	None	None	https://git.kernel.org/linus/f8017317cb0b279b8ab98b0f3901a2e0ac880dad
http://www.cnnvd.org.cn/web/vulnerability/queryLds.tag?qcvCnnvdid=CVE-2022-49904

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-2022-49904

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

net, neigh: Fix null-ptr-deref in neigh_table_clear()

When IPv6 module gets initialized but hits an error in the middle,
kenel panic with:

KASAN: null-ptr-deref in range [0x0000000000000598-0x000000000000059f]
CPU: 1 PID: 361 Comm: insmod
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
RIP: 0010:__neigh_ifdown.isra.0+0x24b/0x370
RSP: 0018:ffff888012677908 EFLAGS: 00000202
...
Call Trace:
<TASK>
neigh_table_clear+0x94/0x2d0
ndisc_cleanup+0x27/0x40 [ipv6]
inet6_init+0x21c/0x2cb [ipv6]
do_one_initcall+0xd3/0x4d0
do_init_module+0x1ae/0x670
...
Kernel panic - not syncing: Fatal exception

When ipv6 initialization fails, it will try to cleanup and calls:

neigh_table_clear()
neigh_ifdown(tbl, NULL)
pneigh_queue_purge(&tbl->proxy_queue, dev_net(dev == NULL))
# dev_net(NULL) triggers null-ptr-deref.

Fix it by passing NULL to pneigh_queue_purge() in neigh_ifdown() if dev
is NULL, to make kernel not panic immediately.

The Linux kernel CVE team has assigned CVE-2022-49904 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:net, neigh: Fix null-ptr-deref in neigh_table_clear()When IPv6 module gets initialized but hits an error in the middle,kenel panic with:KASAN: null-ptr-deref in range [0x0000000000000598-0x000000000000059f]CPU: 1 PID: 361 Comm: insmodHardware name: QEMU Standard PC (i440FX + PIIX, 1996)RIP: 0010:__neigh_ifdown.isra.0+0x24b/0x370RSP: 0018:ffff888012677908 EFLAGS: 00000202...Call Trace: &lt;TASK&gt; neigh_table_clear+0x94/0x2d0 ndisc_cleanup+0x27/0x40 [ipv6] inet6_init+0x21c/0x2cb [ipv6] do_one_initcall+0xd3/0x4d0 do_init_module+0x1ae/0x670...Kernel panic - not syncing: Fatal exceptionWhen ipv6 initialization fails, it will try to cleanup and calls:neigh_table_clear()  neigh_ifdown(tbl, NULL)    pneigh_queue_purge(&#38;tbl-&gt;proxy_queue, dev_net(dev == NULL))    # dev_net(NULL) triggers null-ptr-deref.Fix it by passing NULL to pneigh_queue_purge() in neigh_ifdown() if devis NULL, to make kernel not panic immediately.The Linux kernel CVE team has assigned CVE-2022-49904 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-2022-49904

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