CVE-2025-38006
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net: mctp: Don't access ifa_index when missing
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
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 583be982d93479ea3d85091b0fd0b01201ede87d | affected | git | 8ef7b3f0db69e2f4a80be351f6aee9a4c2332ef9 | Unavailable | None listed |
| 583be982d93479ea3d85091b0fd0b01201ede87d | affected | git | acab78ae12c7fefb4f3bfe22e00770a5faa42724 | Unavailable | None listed |
| 583be982d93479ea3d85091b0fd0b01201ede87d | affected | git | d4d1561d17eb72908e4489c0900d96e0484fac20 | Unavailable | None listed |
| 583be982d93479ea3d85091b0fd0b01201ede87d | affected | git | 24fa213dffa470166ec014f979f36c6ff44afb45 | Unavailable | None listed |
| 583be982d93479ea3d85091b0fd0b01201ede87d | affected | git | f11cf946c0a92c560a890d68e4775723353599e1 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.15 | Unavailable | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.6.92 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.30 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.14.8 | unaffected | semver | Unavailable | 6.14.* | None listed |
| 6.15 | unaffected | original_commit_for_fix | Unavailable | * | None listed |