CVE-2024-56539

一、漏洞信息
漏洞编号：CVE-2024-56539
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:wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan()Replace one-element array with a flexible-array member in structmwifiex_ie_types_wildcard_ssid_params to fix the following warningon a MT8173 Chromebook (mt8173-elm-hana):[ 356.775250] ------------[ cut here ]------------[ 356.784543] memcpy: detected field-spanning write (size 6) of single field wildcard_ssid_tlv->ssid at drivers/net/wireless/marvell/mwifiex/scan.c:904 (size 1)[ 356.813403] WARNING: CPU: 3 PID: 742 at drivers/net/wireless/marvell/mwifiex/scan.c:904 mwifiex_scan_networks+0x4fc/0xf28 [mwifiex]The (size 6) above is exactly the length of the SSID of the networkthis device was connected to. The source of the warning looks like: ssid_len = user_scan_in->ssid_list[i].ssid_len; [...] memcpy(wildcard_ssid_tlv->ssid, user_scan_in->ssid_list[i].ssid, ssid_len);There is a #define WILDCARD_SSID_TLV_MAX_SIZE that uses sizeof() on thisstruct, but it already didn t account for the size of the one-elementarray, so it doesn t need to be changed.
漏洞公开时间：2024-12-27 22:15:33
漏洞创建时间：2024-12-27 22:44:28
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2024-56539

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/1de0ca1d7320a645ba2ee5954f64be08935b002a
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/581261b2d6fdb4237b24fa13f5a5f87bf2861f2c
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5fa329c44e1e635da2541eab28b6cdb8464fc8d1
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a09760c513ae0f98c7082a1deace7fb6284ee866
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b466746cfb6be43f9a1457bbee52ade397fb23ea
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c4698ef8c42e02782604bf4f8a489dbf6b0c1365
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d241a139c2e9f8a479f25c75ebd5391e6a448500
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d7774910c5583e61c5fe2571280366624ef48036
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e2de22e4b6213371d9e76f74a10ce817572a8d74
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-56539	https://bugzilla.suse.com/show_bug.cgi?id=1234963
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2024-56539	https://bugzilla.suse.com/show_bug.cgi?id=1234963
suse_bugzilla	https://git.kernel.org/stable/c/1de0ca1d7320a645ba2ee5954f64be08935b002a	https://bugzilla.suse.com/show_bug.cgi?id=1234963
suse_bugzilla	https://git.kernel.org/stable/c/581261b2d6fdb4237b24fa13f5a5f87bf2861f2c	https://bugzilla.suse.com/show_bug.cgi?id=1234963
suse_bugzilla	https://git.kernel.org/stable/c/5fa329c44e1e635da2541eab28b6cdb8464fc8d1	https://bugzilla.suse.com/show_bug.cgi?id=1234963
suse_bugzilla	https://git.kernel.org/stable/c/a09760c513ae0f98c7082a1deace7fb6284ee866	https://bugzilla.suse.com/show_bug.cgi?id=1234963
suse_bugzilla	https://git.kernel.org/stable/c/b466746cfb6be43f9a1457bbee52ade397fb23ea	https://bugzilla.suse.com/show_bug.cgi?id=1234963
suse_bugzilla	https://git.kernel.org/stable/c/c4698ef8c42e02782604bf4f8a489dbf6b0c1365	https://bugzilla.suse.com/show_bug.cgi?id=1234963
suse_bugzilla	https://git.kernel.org/stable/c/d241a139c2e9f8a479f25c75ebd5391e6a448500	https://bugzilla.suse.com/show_bug.cgi?id=1234963
suse_bugzilla	https://git.kernel.org/stable/c/d7774910c5583e61c5fe2571280366624ef48036	https://bugzilla.suse.com/show_bug.cgi?id=1234963
suse_bugzilla	https://git.kernel.org/stable/c/e2de22e4b6213371d9e76f74a10ce817572a8d74	https://bugzilla.suse.com/show_bug.cgi?id=1234963
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-56539.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1234963
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2334484	https://bugzilla.suse.com/show_bug.cgi?id=1234963
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024122726-CVE-2024-56539-4d60@gregkh/T	https://bugzilla.redhat.com/show_bug.cgi?id=2334484
debian		https://security-tracker.debian.org/tracker/CVE-2024-56539
osv	https://git.kernel.org/stable/c/1de0ca1d7320a645ba2ee5954f64be08935b002a	https://osv.dev/vulnerability/CVE-2024-56539
osv	https://git.kernel.org/stable/c/581261b2d6fdb4237b24fa13f5a5f87bf2861f2c	https://osv.dev/vulnerability/CVE-2024-56539
osv	https://git.kernel.org/stable/c/5fa329c44e1e635da2541eab28b6cdb8464fc8d1	https://osv.dev/vulnerability/CVE-2024-56539
osv	https://git.kernel.org/stable/c/a09760c513ae0f98c7082a1deace7fb6284ee866	https://osv.dev/vulnerability/CVE-2024-56539
osv	https://git.kernel.org/stable/c/b466746cfb6be43f9a1457bbee52ade397fb23ea	https://osv.dev/vulnerability/CVE-2024-56539
osv	https://git.kernel.org/stable/c/c4698ef8c42e02782604bf4f8a489dbf6b0c1365	https://osv.dev/vulnerability/CVE-2024-56539
osv	https://git.kernel.org/stable/c/d241a139c2e9f8a479f25c75ebd5391e6a448500	https://osv.dev/vulnerability/CVE-2024-56539
osv	https://git.kernel.org/stable/c/d7774910c5583e61c5fe2571280366624ef48036	https://osv.dev/vulnerability/CVE-2024-56539
osv	https://git.kernel.org/stable/c/e2de22e4b6213371d9e76f74a10ce817572a8d74	https://osv.dev/vulnerability/CVE-2024-56539
osv	https://security-tracker.debian.org/tracker/CVE-2024-56539	https://osv.dev/vulnerability/CVE-2024-56539

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	4.19.325	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=a09760c513ae0f98c7082a1deace7fb6284ee866Issue	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e	linuxkernelcves
linux_kernel	5.4.287	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1de0ca1d7320a645ba2ee5954f64be08935b002aIssue	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e	linuxkernelcves
linux_kernel	5.10.231	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5fa329c44e1e635da2541eab28b6cdb8464fc8d1Issue	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e	linuxkernelcves
linux_kernel	5.15.174	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=581261b2d6fdb4237b24fa13f5a5f87bf2861f2cIssue	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e	linuxkernelcves
linux_kernel	6.1.120	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b466746cfb6be43f9a1457bbee52ade397fb23eaIssue	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e	linuxkernelcves
linux_kernel	6.6.64	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=c4698ef8c42e02782604bf4f8a489dbf6b0c1365Issue	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e	linuxkernelcves
linux_kernel	6.11.11	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e2de22e4b6213371d9e76f74a10ce817572a8d74Issue	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e	linuxkernelcves
linux_kernel	6.12.2	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=d7774910c5583e61c5fe2571280366624ef48036Issue	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e	linuxkernelcves
linux_kernel	6.13-rc1	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=d241a139c2e9f8a479f25c75ebd5391e6a448500Please	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e	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:wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan()Replace one-element array with a flexible-array member in structmwifiex_ie_types_wildcard_ssid_params to fix the following warningon a MT8173 Chromebook (mt8173-elm-hana):[ 356.775250] ------------[ cut here ]------------[ 356.784543] memcpy: detected field-spanning write (size 6) of single field "wildcard_ssid_tlv->ssid" at drivers/net/wireless/marvell/mwifiex/scan.c:904 (size 1)[ 356.813403] WARNING: CPU: 3 PID: 742 at drivers/net/wireless/marvell/mwifiex/scan.c:904 mwifiex_scan_networks+0x4fc/0xf28 [mwifiex]The "(size 6)" above is exactly the length of the SSID of the networkthis device was connected to. The source of the warning looks like: ssid_len = user_scan_in->ssid_list[i].ssid_len; [...] memcpy(wildcard_ssid_tlv->ssid, user_scan_in->ssid_list[i].ssid, ssid_len);There is a #define WILDCARD_SSID_TLV_MAX_SIZE that uses sizeof() on thisstruct, but it already didn't account for the size of the one-elementarray, so it doesn't need to be changed.The Linux kernel CVE team has assigned CVE-2024-56539 to this issue.
openEuler评分：
8.0
Vector：CVSS：3.0/AV:A/AC:L/PR:N/UI:R/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:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.openEuler-24.03-LTS:受影响
6.openEuler-24.03-LTS-SP1(6.6.0):受影响
7.master(6.6.0):不受影响
8.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(6.6.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否
8.openEuler-24.03-LTS-SP1(6.6.0):否

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

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-1286

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), 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-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):
8.openEuler-24.03-LTS-SP1(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-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):
8.openEuler-24.03-LTS-SP1(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-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):
8.openEuler-24.03-LTS-SP1(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

CVE-2024-56539

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

wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan()

Replace one-element array with a flexible-array member in struct mwifiex_ie_types_wildcard_ssid_params to fix the following warning
on a MT8173 Chromebook (mt8173-elm-hana):

[ 356.775250] ------------[ cut here ]------------
[ 356.784543] memcpy: detected field-spanning write (size 6) of single field "wildcard_ssid_tlv->ssid" at drivers/net/wireless/marvell/mwifiex/scan.c:904 (size 1)
[ 356.813403] WARNING: CPU: 3 PID: 742 at drivers/net/wireless/marvell/mwifiex/scan.c:904 mwifiex_scan_networks+0x4fc/0xf28 [mwifiex]

The "(size 6)" above is exactly the length of the SSID of the network
this device was connected to. The source of the warning looks like:

ssid_len = user_scan_in-&gt;ssid_list[i].ssid_len;
[...]
memcpy(wildcard_ssid_tlv-&gt;ssid,
       user_scan_in-&gt;ssid_list[i].ssid, ssid_len);

There is a #define WILDCARD_SSID_TLV_MAX_SIZE that uses sizeof() on this
struct, but it already didn't account for the size of the one-element
array, so it doesn't need to be changed.

The Linux kernel CVE team has assigned CVE-2024-56539 to this issue.

openEuler评分:(评分和向量)
8.0
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/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:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响
8.openEuler-24.03-LTS-SP1: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(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否
8.openEuler-24.03-LTS-SP1: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-SP1:正常修复
4.openEuler-22.03-LTS-SP3:正常修复
5.openEuler-22.03-LTS-SP4:正常修复
6.openEuler-24.03-LTS:正常修复
7.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
8.openEuler-24.03-LTS-SP1:正常修复

@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:wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan()Replace one-element array with a flexible-array member in `structmwifiex_ie_types_wildcard_ssid_params` to fix the following warningon a MT8173 Chromebook (mt8173-elm-hana):[ 356.775250] ------------[ cut here ]------------[ 356.784543] memcpy: detected field-spanning write (size 6) of single field "wildcard_ssid_tlv->ssid" at drivers/net/wireless/marvell/mwifiex/scan.c:904 (size 1)[ 356.813403] WARNING: CPU: 3 PID: 742 at drivers/net/wireless/marvell/mwifiex/scan.c:904 mwifiex_scan_networks+0x4fc/0xf28 [mwifiex]The "(size 6)" above is exactly the length of the SSID of the networkthis device was connected to. The source of the warning looks like: ssid_len = user_scan_in->ssid_list[i].ssid_len; [...] memcpy(wildcard_ssid_tlv->ssid, user_scan_in->ssid_list[i].ssid, ssid_len);There is a #define WILDCARD_SSID_TLV_MAX_SIZE that uses sizeof() on thisstruct, but it already didn't account for the size of the one-elementarray, so it doesn't need to be changed.The Linux kernel CVE team has assigned CVE-2024-56539 to this issue.
已分析	2.openEulerScore	8
已分析	3.openEulerVector	AV:A/AC:L/PR:N/UI:R/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:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-22.03-LTS-SP4:受影响,openEuler-24.03-LTS:受影响,openEuler-24.03-LTS-SP1:受影响,master: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,openEuler-24.03-LTS-SP1:否
已分析	6.原因说明	openEuler-20.03-LTS-SP4:正常修复,openEuler-22.03-LTS-SP1:正常修复,openEuler-22.03-LTS-SP3:正常修复,openEuler-22.03-LTS-SP4:正常修复,openEuler-24.03-LTS:正常修复,openEuler-24.03-LTS-SP1:正常修复,master: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

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.

@gatieme ,@xiexiuqi ,@yangyingliang ,@pi3orama ,@jiaoff ,@ci-robot
关闭issue前,需要将受影响的分支在合并pr时关联上当前issue编号: #IBEAE6
受影响分支: openEuler-22.03-LTS-SP3/openEuler-22.03-LTS-SP4/openEuler-24.03-LTS/openEuler-24.03-LTS-SP1/openEuler-20.03-LTS-SP4/openEuler-22.03-LTS-SP1
具体操作参考: https://gitee.com/help/articles/4142

CVE-2024-56539

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

wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan()

Replace one-element array with a flexible-array member in struct mwifiex_ie_types_wildcard_ssid_params to fix the following warning
on a MT8173 Chromebook (mt8173-elm-hana):

[ 356.775250] ------------[ cut here ]------------
[ 356.784543] memcpy: detected field-spanning write (size 6) of single field "wildcard_ssid_tlv->ssid" at drivers/net/wireless/marvell/mwifiex/scan.c:904 (size 1)
[ 356.813403] WARNING: CPU: 3 PID: 742 at drivers/net/wireless/marvell/mwifiex/scan.c:904 mwifiex_scan_networks+0x4fc/0xf28 [mwifiex]

The "(size 6)" above is exactly the length of the SSID of the network
this device was connected to. The source of the warning looks like:

ssid_len = user_scan_in-&gt;ssid_list[i].ssid_len;
[...]
memcpy(wildcard_ssid_tlv-&gt;ssid,
       user_scan_in-&gt;ssid_list[i].ssid, ssid_len);

There is a #define WILDCARD_SSID_TLV_MAX_SIZE that uses sizeof() on this
struct, but it already didn't account for the size of the one-element
array, so it doesn't need to be changed.

The Linux kernel CVE team has assigned CVE-2024-56539 to this issue.

openEuler评分:(评分和向量)
8.0
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/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:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.openEuler-24.03-LTS:受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1: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

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
4.openEuler-22.03-LTS-SP3:正常修复
5.openEuler-22.03-LTS-SP4:正常修复
6.openEuler-24.03-LTS:正常修复
7.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
8.openEuler-24.03-LTS-SP1:正常修复

CVE-2024-56539

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

wifi: mwifiex: Fix memcpy() field-spanning write warning in mwifiex_config_scan()

Replace one-element array with a flexible-array member in struct mwifiex_ie_types_wildcard_ssid_params to fix the following warning
on a MT8173 Chromebook (mt8173-elm-hana):

[ 356.775250] ------------[ cut here ]------------
[ 356.784543] memcpy: detected field-spanning write (size 6) of single field "wildcard_ssid_tlv->ssid" at drivers/net/wireless/marvell/mwifiex/scan.c:904 (size 1)
[ 356.813403] WARNING: CPU: 3 PID: 742 at drivers/net/wireless/marvell/mwifiex/scan.c:904 mwifiex_scan_networks+0x4fc/0xf28 [mwifiex]

The "(size 6)" above is exactly the length of the SSID of the network
this device was connected to. The source of the warning looks like:

ssid_len = user_scan_in-&gt;ssid_list[i].ssid_len;
[...]
memcpy(wildcard_ssid_tlv-&gt;ssid,
       user_scan_in-&gt;ssid_list[i].ssid, ssid_len);

There is a #define WILDCARD_SSID_TLV_MAX_SIZE that uses sizeof() on this
struct, but it already didn't account for the size of the one-element
array, so it doesn't need to be changed.

The Linux kernel CVE team has assigned CVE-2024-56539 to this issue.

openEuler评分:(评分和向量)
8.0
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/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:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.openEuler-24.03-LTS:受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1: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

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
4.openEuler-22.03-LTS-SP3:正常修复
5.openEuler-22.03-LTS-SP4:正常修复
6.openEuler-24.03-LTS:正常修复
7.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
8.openEuler-24.03-LTS-SP1:正常修复

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