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CVE-2025-38006— net: mctp: Don't access ifa_index when missing

EPSS 0.06% · P19

Affected Version Matrix 12

VendorProductVersion RangeStatus
LinuxLinux583be982d93479ea3d85091b0fd0b01201ede87d< 8ef7b3f0db69e2f4a80be351f6aee9a4c2332ef9affected
583be982d93479ea3d85091b0fd0b01201ede87d< acab78ae12c7fefb4f3bfe22e00770a5faa42724affected
583be982d93479ea3d85091b0fd0b01201ede87d< d4d1561d17eb72908e4489c0900d96e0484fac20affected
583be982d93479ea3d85091b0fd0b01201ede87d< 24fa213dffa470166ec014f979f36c6ff44afb45affected
583be982d93479ea3d85091b0fd0b01201ede87d< f11cf946c0a92c560a890d68e4775723353599e1affected
5.15affected
< 5.15unaffected
5.15.203≤ 5.15.*unaffected
… +4 more rows
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I. Basic Information for CVE-2025-38006

Vulnerability Information
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Vulnerability Title
net: mctp: Don't access ifa_index when missing
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: mctp: Don't access ifa_index when missing In mctp_dump_addrinfo, ifa_index can be used to filter interfaces, but only when the struct ifaddrmsg is provided. Otherwise it will be comparing to uninitialised memory - reproducible in the syzkaller case from dhcpd, or busybox "ip addr show". The kernel MCTP implementation has always filtered by ifa_index, so existing userspace programs expecting to dump MCTP addresses must already be passing a valid ifa_index value (either 0 or a real index). BUG: KMSAN: uninit-value in mctp_dump_addrinfo+0x208/0xac0 net/mctp/device.c:128 mctp_dump_addrinfo+0x208/0xac0 net/mctp/device.c:128 rtnl_dump_all+0x3ec/0x5b0 net/core/rtnetlink.c:4380 rtnl_dumpit+0xd5/0x2f0 net/core/rtnetlink.c:6824 netlink_dump+0x97b/0x1690 net/netlink/af_netlink.c:2309
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于mctp_dump_addrinfo函数未初始化内存访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 583be982d93479ea3d85091b0fd0b01201ede87d ~ 8ef7b3f0db69e2f4a80be351f6aee9a4c2332ef9 -
LinuxLinux 5.15 -

II. Public POCs for CVE-2025-38006

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III. Intelligence Information for CVE-2025-38006

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Same Patch Batch · Linux · 2025-06-18 · 362 CVEs total

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Showing top 20 of 362 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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