CVE-2021-47548

一、漏洞信息
漏洞编号：CVE-2021-47548
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0,6.6.0
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:ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()The if statement: if (port >= DSAF_GE_NUM) return;limits the value of port less than DSAF_GE_NUM (i.e., 8).However, if the value of port is 6 or 7, an array overflow could occur: port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).To fix this possible array overflow, we first check port and if it isgreater than or equal to DSAF_MAX_PORT_NUM, the function returns.
漏洞公开时间：2024-05-24 23:15:19
漏洞创建时间：2024-05-24 18:12:40
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2021-47548

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/22519eff7df2d88adcc2568d86046ce1e2b52803
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47548	https://bugzilla.suse.com/show_bug.cgi?id=1225506
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2021-47548	https://bugzilla.suse.com/show_bug.cgi?id=1225506
suse_bugzilla	https://git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803	https://bugzilla.suse.com/show_bug.cgi?id=1225506
suse_bugzilla	https://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b	https://bugzilla.suse.com/show_bug.cgi?id=1225506
suse_bugzilla	https://git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d	https://bugzilla.suse.com/show_bug.cgi?id=1225506
suse_bugzilla	https://git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114	https://bugzilla.suse.com/show_bug.cgi?id=1225506
suse_bugzilla	https://git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1	https://bugzilla.suse.com/show_bug.cgi?id=1225506
suse_bugzilla	https://git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff	https://bugzilla.suse.com/show_bug.cgi?id=1225506
suse_bugzilla	https://git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627	https://bugzilla.suse.com/show_bug.cgi?id=1225506
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2021/CVE-2021-47548.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1225506
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2283401	https://bugzilla.suse.com/show_bug.cgi?id=1225506
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024052441-CVE-2021-47548-e9c0@gregkh/T	https://bugzilla.redhat.com/show_bug.cgi?id=2283401
redhat_bugzilla	https://access.redhat.com/errata/RHSA-2024:4533	https://bugzilla.redhat.com/show_bug.cgi?id=2283401
redhat_bugzilla	https://access.redhat.com/errata/RHSA-2024:4554	https://bugzilla.redhat.com/show_bug.cgi?id=2283401
redhat_bugzilla	https://access.redhat.com/errata/RHSA-2024:4583	https://bugzilla.redhat.com/show_bug.cgi?id=2283401
redhat_bugzilla	https://access.redhat.com/errata/RHSA-2024:4740	https://bugzilla.redhat.com/show_bug.cgi?id=2283401
redhat_bugzilla	https://access.redhat.com/errata/RHSA-2024:4902	https://bugzilla.redhat.com/show_bug.cgi?id=2283401
redhat_bugzilla	https://access.redhat.com/errata/RHSA-2024:5102	https://bugzilla.redhat.com/show_bug.cgi?id=2283401
redhat_bugzilla	https://access.redhat.com/errata/RHSA-2024:5101	https://bugzilla.redhat.com/show_bug.cgi?id=2283401
ubuntu	https://www.cve.org/CVERecord?id=CVE-2021-47548	https://ubuntu.com/security/CVE-2021-47548
ubuntu	https://git.kernel.org/linus/a66998e0fbf213d47d02813b9679426129d0d114 (5.16-rc2)	https://ubuntu.com/security/CVE-2021-47548
ubuntu	https://git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803	https://ubuntu.com/security/CVE-2021-47548
ubuntu	https://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b	https://ubuntu.com/security/CVE-2021-47548
ubuntu	https://git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d	https://ubuntu.com/security/CVE-2021-47548
ubuntu	https://git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114	https://ubuntu.com/security/CVE-2021-47548
ubuntu	https://git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1	https://ubuntu.com/security/CVE-2021-47548
ubuntu	https://git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff	https://ubuntu.com/security/CVE-2021-47548
ubuntu	https://git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627	https://ubuntu.com/security/CVE-2021-47548
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2021-47548	https://ubuntu.com/security/CVE-2021-47548
ubuntu	https://launchpad.net/bugs/cve/CVE-2021-47548	https://ubuntu.com/security/CVE-2021-47548
ubuntu	https://security-tracker.debian.org/tracker/CVE-2021-47548	https://ubuntu.com/security/CVE-2021-47548
anolis		https://anas.openanolis.cn/cves/detail/CVE-2021-47548
cve_search		https://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b
cve_search		https://git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1
cve_search		https://git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff
cve_search		https://git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d
cve_search		https://git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803
cve_search		https://git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627
cve_search		https://git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114

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:
其它
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/a66998e0fbf213d47d02813b9679426129d0d114	https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2	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:ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()The if statement: if (port >= DSAF_GE_NUM) return;limits the value of port less than DSAF_GE_NUM (i.e., 8).However, if the value of port is 6 or 7, an array overflow could occur: port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).To fix this possible array overflow, we first check port and if it isgreater than or equal to DSAF_MAX_PORT_NUM, the function returns.
openEuler评分：
9.8
Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.openEuler-22.03-LTS-SP1(5.10.0):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.master(6.6.0):不受影响
6.openEuler-24.03-LTS(6.6.0):不受影响
7.openEuler-24.03-LTS-Next(6.6.0):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(5.10.0):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.master(6.6.0):否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-22.03-LTS-SP4(5.10.0):否

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):

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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;**
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************************************************************************
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-22.03-LTS-SP4:
10.openEuler-24.03-LTS:
11.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-22.03-LTS-SP4:
10.openEuler-24.03-LTS:
11.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-2021-47548	None	None	https://git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803 https://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b https://git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d https://git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114 https://git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff https://git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1 https://git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627
https://ubuntu.com/security/CVE-2021-47548
https://www.opencve.io/cve/CVE-2021-47548	None	None	https://git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803 https://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b https://git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d https://git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114 https://git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff https://git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1 https://git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2021-47548
https://security-tracker.debian.org/tracker/CVE-2021-47548	None	None	https://git.kernel.org/linus/a66998e0fbf213d47d02813b9679426129d0d114

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-2021-47548

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

ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()

The if statement:
if (port >= DSAF_GE_NUM)
return;

limits the value of port less than DSAF_GE_NUM (i.e., 8).
However, if the value of port is 6 or 7, an array overflow could occur:
port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;

because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).

To fix this possible array overflow, we first check port and if it is
greater than or equal to DSAF_MAX_PORT_NUM, the function returns.

openEuler评分:(评分和向量)
5.5
CVSS: 3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1:受影响
2.openEuler-20.03-LTS-SP4: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

@sanglipeng 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:ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()The if statement:  if (port >= DSAF_GE_NUM)        return;limits the value of port less than DSAF_GE_NUM (i.e., 8).However, if the value of port is 6 or 7, an array overflow could occur:  port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).To fix this possible array overflow, we first check port and if it isgreater than or equal to DSAF_MAX_PORT_NUM, the function returns.|
|已分析|2.openEulerScore|5.5|
|已分析|3.openEulerVector|AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP1:受影响,openEuler-20.03-LTS-SP4: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.**

CVE-2021-47548

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

ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()

The if statement:
if (port >= DSAF_GE_NUM)
return;

limits the value of port less than DSAF_GE_NUM (i.e., 8).
However, if the value of port is 6 or 7, an array overflow could occur:
port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;

because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).

To fix this possible array overflow, we first check port and if it is
greater than or equal to DSAF_MAX_PORT_NUM, the function returns.

openEuler评分:(评分和向量)
5.5
CVSS: 3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1:受影响
2.openEuler-20.03-LTS-SP4: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

@sanglipeng 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:ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()The if statement:  if (port >= DSAF_GE_NUM)        return;limits the value of port less than DSAF_GE_NUM (i.e., 8).However, if the value of port is 6 or 7, an array overflow could occur:  port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).To fix this possible array overflow, we first check port and if it isgreater than or equal to DSAF_MAX_PORT_NUM, the function returns.|
|已分析|2.openEulerScore|5.5|
|已分析|3.openEulerVector|AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP1:受影响,openEuler-20.03-LTS-SP4: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.**

CVE-2021-47548

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

ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()

The if statement:
if (port >= DSAF_GE_NUM)
return;

limits the value of port less than DSAF_GE_NUM (i.e., 8).
However, if the value of port is 6 or 7, an array overflow could occur:
port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;

because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).

To fix this possible array overflow, we first check port and if it is
greater than or equal to DSAF_MAX_PORT_NUM, the function returns.

openEuler评分:(评分和向量)
5.5
CVSS: 3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1:受影响
2.openEuler-20.03-LTS-SP4: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

@sanglipeng 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:ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()The if statement:  if (port >= DSAF_GE_NUM)        return;limits the value of port less than DSAF_GE_NUM (i.e., 8).However, if the value of port is 6 or 7, an array overflow could occur:  port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).To fix this possible array overflow, we first check port and if it isgreater than or equal to DSAF_MAX_PORT_NUM, the function returns.|
|已分析|2.openEulerScore|5.5|
|已分析|3.openEulerVector|AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP1:受影响,openEuler-20.03-LTS-SP4: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.**

CVE-2021-47548

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

ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()

The if statement:
if (port >= DSAF_GE_NUM)
return;

limits the value of port less than DSAF_GE_NUM (i.e., 8).
However, if the value of port is 6 or 7, an array overflow could occur:
port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;

because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).

To fix this possible array overflow, we first check port and if it is
greater than or equal to DSAF_MAX_PORT_NUM, the function returns.

openEuler评分:(评分和向量)
5.5
CVSS: 3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1:受影响
2.openEuler-20.03-LTS-SP4: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

@sanglipeng 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:ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()The if statement:  if (port >= DSAF_GE_NUM)        return;limits the value of port less than DSAF_GE_NUM (i.e., 8).However, if the value of port is 6 or 7, an array overflow could occur:  port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).To fix this possible array overflow, we first check port and if it isgreater than or equal to DSAF_MAX_PORT_NUM, the function returns.|
|已分析|2.openEulerScore|5.5|
|已分析|3.openEulerVector|AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP1:受影响,openEuler-20.03-LTS-SP4: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.**

CVE-2021-47548

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

ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()

The if statement:
if (port >= DSAF_GE_NUM)
return;

limits the value of port less than DSAF_GE_NUM (i.e., 8).
However, if the value of port is 6 or 7, an array overflow could occur:
port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;

because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).

To fix this possible array overflow, we first check port and if it is
greater than or equal to DSAF_MAX_PORT_NUM, the function returns.

openEuler评分:(评分和向量)
5.5
CVSS: 3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1:受影响
2.openEuler-20.03-LTS-SP4: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

@sanglipeng 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:ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()The if statement:  if (port >= DSAF_GE_NUM)        return;limits the value of port less than DSAF_GE_NUM (i.e., 8).However, if the value of port is 6 or 7, an array overflow could occur:  port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).To fix this possible array overflow, we first check port and if it isgreater than or equal to DSAF_MAX_PORT_NUM, the function returns.|
|已分析|2.openEulerScore|5.5|
|已分析|3.openEulerVector|AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP1:受影响,openEuler-20.03-LTS-SP4: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.**

CVE-2021-47548

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

ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()

The if statement:
if (port >= DSAF_GE_NUM)
return;

limits the value of port less than DSAF_GE_NUM (i.e., 8).
However, if the value of port is 6 or 7, an array overflow could occur:
port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;

because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).

To fix this possible array overflow, we first check port and if it is
greater than or equal to DSAF_MAX_PORT_NUM, the function returns.

openEuler评分:(评分和向量)
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.openEuler-22.03-LTS-SP1: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.master(23.08.5):不受影响
6.openEuler-24.03-LTS:不受影响
7.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:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(23.08.5):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

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

@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:ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()The if statement:  if (port >= DSAF_GE_NUM)        return;limits the value of port less than DSAF_GE_NUM (i.e., 8).However, if the value of port is 6 or 7, an array overflow could occur:  port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).To fix this possible array overflow, we first check port and if it isgreater than or equal to DSAF_MAX_PORT_NUM, the function returns.|
|已分析|2.openEulerScore|9.8|
|已分析|3.openEulerVector|AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP1: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-24.03-LTS: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|
|已分析|6.原因说明||

**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.**

src-openEuler/kernel

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CVE-2021-47548

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