CVE - CVE-2025-38006

CVE-ID
CVE-2025-38006	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/24fa213dffa470166ec014f979f36c6ff44afb45 URL:https://git.kernel.org/stable/c/24fa213dffa470166ec014f979f36c6ff44afb45 MISC:https://git.kernel.org/stable/c/acab78ae12c7fefb4f3bfe22e00770a5faa42724 URL:https://git.kernel.org/stable/c/acab78ae12c7fefb4f3bfe22e00770a5faa42724 MISC:https://git.kernel.org/stable/c/d4d1561d17eb72908e4489c0900d96e0484fac20 URL:https://git.kernel.org/stable/c/d4d1561d17eb72908e4489c0900d96e0484fac20 MISC:https://git.kernel.org/stable/c/f11cf946c0a92c560a890d68e4775723353599e1 URL:https://git.kernel.org/stable/c/f11cf946c0a92c560a890d68e4775723353599e1
Assigning CNA
kernel.org
Date Record Created
20250416	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250416)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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