CVE-2022-48637

一、漏洞信息
漏洞编号：CVE-2022-48637
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0
CVSS V2.0分值：
BaseScore：0.0 Low
Vector：CVSS：2.0/
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:bnxt: prevent skb UAF after handing over to PTP workerWhen reading the timestamp is required bnxt_tx_int() handsover the ownership of the completed skb to the PTP worker.The skb should not be used afterwards, as the worker mayrun before the rest of our code and free the skb, leadingto a use-after-free.Since dev_kfree_skb_any() accepts NULL make the loss ofownership more obvious and set skb to NULL.
漏洞公开时间：2024-04-28 21:15:06
漏洞创建时间：2024-04-28 22:56:54
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2022-48637

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/08483e4c0c83b221b8891434a04cec405dee94a6
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/32afa1f23e42cc635ccf4c39f24514d03d1e8338
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c31f26c8f69f776759cbbdfb38e40ea91aa0dd65
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-48637	https://bugzilla.suse.com/show_bug.cgi?id=1223517
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2022-48637	https://bugzilla.suse.com/show_bug.cgi?id=1223517
suse_bugzilla	https://git.kernel.org/stable/c/08483e4c0c83b221b8891434a04cec405dee94a6	https://bugzilla.suse.com/show_bug.cgi?id=1223517
suse_bugzilla	https://git.kernel.org/stable/c/32afa1f23e42cc635ccf4c39f24514d03d1e8338	https://bugzilla.suse.com/show_bug.cgi?id=1223517
suse_bugzilla	https://git.kernel.org/stable/c/c31f26c8f69f776759cbbdfb38e40ea91aa0dd65	https://bugzilla.suse.com/show_bug.cgi?id=1223517
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2022/CVE-2022-48637.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1223517
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024042855-CVE-2022-48637-d149@gregkh/T	https://bugzilla.redhat.com/show_bug.cgi?id=2277831
ubuntu	https://www.cve.org/CVERecord?id=CVE-2022-48637	https://ubuntu.com/security/CVE-2022-48637
ubuntu	https://git.kernel.org/linus/c31f26c8f69f776759cbbdfb38e40ea91aa0dd65 (6.0-rc7)	https://ubuntu.com/security/CVE-2022-48637
ubuntu	https://git.kernel.org/stable/c/08483e4c0c83b221b8891434a04cec405dee94a6	https://ubuntu.com/security/CVE-2022-48637
ubuntu	https://git.kernel.org/stable/c/32afa1f23e42cc635ccf4c39f24514d03d1e8338	https://ubuntu.com/security/CVE-2022-48637
ubuntu	https://git.kernel.org/stable/c/c31f26c8f69f776759cbbdfb38e40ea91aa0dd65	https://ubuntu.com/security/CVE-2022-48637
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2022-48637	https://ubuntu.com/security/CVE-2022-48637
ubuntu	https://launchpad.net/bugs/cve/CVE-2022-48637	https://ubuntu.com/security/CVE-2022-48637
ubuntu	https://security-tracker.debian.org/tracker/CVE-2022-48637	https://ubuntu.com/security/CVE-2022-48637
cve_search		https://git.kernel.org/stable/c/08483e4c0c83b221b8891434a04cec405dee94a6
cve_search		https://git.kernel.org/stable/c/32afa1f23e42cc635ccf4c39f24514d03d1e8338
cve_search		https://git.kernel.org/stable/c/c31f26c8f69f776759cbbdfb38e40ea91aa0dd65

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		https://git.kernel.org/linus/c31f26c8f69f776759cbbdfb38e40ea91aa0dd65	https://git.kernel.org/linus/83bb623c968e7351aee5111547693f95f330dc5a	ubuntu

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:bnxt: prevent skb UAF after handing over to PTP workerWhen reading the timestamp is required bnxt_tx_int() handsover the ownership of the completed skb to the PTP worker.The skb should not be used afterwards, as the worker mayrun before the rest of our code and free the skb, leadingto a use-after-free.Since dev_kfree_skb_any() accepts NULL make the loss ofownership more obvious and set skb to NULL.
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-SP1(4.19.90):不受影响
2.openEuler-20.03-LTS-SP4(4.19.90):不受影响
3.openEuler-22.03-LTS(5.10.0):不受影响
4.openEuler-22.03-LTS-SP1(5.10.0):不受影响
5.openEuler-22.03-LTS-SP2(5.10.0):不受影响
6.openEuler-22.03-LTS-SP3(5.10.0):不受影响
7.openEuler-22.03-LTS-SP4:不受影响
8.master(6.1.0):不受影响
9.openEuler-22.03-LTS-Next(5.10.0):不受影响
10.openEuler-24.03-LTS:不受影响
11.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-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4(4.19.90):否
3.openEuler-22.03-LTS(5.10.0):否
4.openEuler-22.03-LTS-SP1(5.10.0):否
5.openEuler-22.03-LTS-SP2(5.10.0):否
6.openEuler-22.03-LTS-SP3(5.10.0):否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next(5.10.0):否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否
11.openEuler-22.03-LTS-SP4:否

Hi openeuler-ci-bot, welcome to the openEuler Community.
I'm the Bot here serving you. You can find the instructions on how to interact with me at Here.
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))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-24.03-LTS:
10.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-24.03-LTS:
10.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

参考网址	关联pr	状态	补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2022-48637	None	None	https://git.kernel.org/stable/c/c31f26c8f69f776759cbbdfb38e40ea91aa0dd65 https://git.kernel.org/stable/c/32afa1f23e42cc635ccf4c39f24514d03d1e8338 https://git.kernel.org/stable/c/08483e4c0c83b221b8891434a04cec405dee94a6
https://ubuntu.com/security/CVE-2022-48637	None	None	https://discourse.ubuntu.com/c/ubuntu-pro
https://www.opencve.io/cve/CVE-2022-48637	None	None	https://git.kernel.org/stable/c/c31f26c8f69f776759cbbdfb38e40ea91aa0dd65 https://git.kernel.org/stable/c/32afa1f23e42cc635ccf4c39f24514d03d1e8338 https://git.kernel.org/stable/c/08483e4c0c83b221b8891434a04cec405dee94a6
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2022-48637
https://security-tracker.debian.org/tracker/CVE-2022-48637

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-2022-48637

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

bnxt: prevent skb UAF after handing over to PTP worker

When reading the timestamp is required bnxt_tx_int() hands
over the ownership of the completed skb to the PTP worker.
The skb should not be used afterwards, as the worker may
run before the rest of our code and free the skb, leading
to a use-after-free.

Since dev_kfree_skb_any() accepts NULL make the loss of
ownership more obvious and set skb to NULL.

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-SP1:不受影响
2.openEuler-20.03-LTS-SP4:不受影响
3.openEuler-22.03-LTS:不受影响
4.openEuler-22.03-LTS-SP1:不受影响
5.openEuler-22.03-LTS-SP2:不受影响
6.openEuler-22.03-LTS-SP3:不受影响
7.openEuler-22.03-LTS-SP4:不受影响
8.master(6.1.0):不受影响
9.openEuler-22.03-LTS-Next:不受影响
10.openEuler-24.03-LTS:不受影响
11.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-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS:否
4.openEuler-22.03-LTS-SP1:否
5.openEuler-22.03-LTS-SP2:否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next:否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否
11.openEuler-22.03-LTS-SP4:否

===========================================================

@ 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:bnxt: prevent skb UAF after handing over to PTP workerWhen reading the timestamp is required bnxt_tx_int() handsover the ownership of the completed skb to the PTP worker.The skb should not be used afterwards, as the worker mayrun before the rest of our code and free the skb, leadingto a use-after-free.Since dev_kfree_skb_any() accepts NULL make the loss ofownership more obvious and set skb to NULL.
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-SP1:不受影响,openEuler-20.03-LTS-SP4:不受影响,openEuler-22.03-LTS:不受影响,openEuler-22.03-LTS-SP1:不受影响,openEuler-22.03-LTS-SP2: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-22.03-LTS-Next: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-SP1:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP2:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-22.03-LTS-Next: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.

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CVE-2022-48637

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