net: nexthop: Initialize all fields in dumped nexthops
struct nexthop_grp contains two reserved fields that are not initialized by
nla_put_nh_group(), and carry garbage. This can be observed e.g. with
strace (edited for clarity):
# ip nexthop add id 1 dev lo
# ip nexthop add id 101 group 1
# strace -e recvmsg ip nexthop get id 101
...
recvmsg(... [{nla_len=12, nla_type=NHA_GROUP},
[{id=1, weight=0, resvd1=0x69, resvd2=0x67}]] ...) = 52
The fields are reserved and therefore not currently used. But as they are, they
leak kernel memory, and the fact they are not just zero complicates repurposing
of the fields for new ends. Initialize the full structure.
Analysis and contextual insights are available on OpenCVE Cloud.
No solution or workaround provided in the CVE record.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
Sign in to view the affected projects.
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-3912-1 | linux security update |
Debian DLA |
DLA-4008-1 | linux-6.1 security update |
Ubuntu USN |
USN-7088-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7088-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7088-3 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7088-4 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7088-5 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7100-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7100-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7119-1 | Linux kernel (IoT) vulnerabilities |
Ubuntu USN |
USN-7123-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7144-1 | Linux kernel (Intel IoTG) vulnerabilities |
Ubuntu USN |
USN-7154-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7155-1 | Linux kernel (NVIDIA) vulnerabilities |
Ubuntu USN |
USN-7156-1 | Linux kernel (GKE) vulnerabilities |
Ubuntu USN |
USN-7154-2 | Linux kernel (HWE) vulnerabilities |
Ubuntu USN |
USN-7194-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7196-1 | Linux kernel (Azure) vulnerabilities |
Tue, 12 May 2026 14:30:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Mon, 03 Nov 2025 23:30:00 +0100
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Sat, 16 Nov 2024 03:45:00 +0100
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| CPEs | cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
| Vendors & Products |
Redhat
Redhat enterprise Linux |
Wed, 11 Sep 2024 16:45:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-456 |
Wed, 11 Sep 2024 15:30:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 19 Aug 2024 22:15:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Weaknesses | CWE-908 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
Mon, 19 Aug 2024 21:15:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Mon, 19 Aug 2024 06:45:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Sat, 17 Aug 2024 11:15:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: net: nexthop: Initialize all fields in dumped nexthops struct nexthop_grp contains two reserved fields that are not initialized by nla_put_nh_group(), and carry garbage. This can be observed e.g. with strace (edited for clarity): # ip nexthop add id 1 dev lo # ip nexthop add id 101 group 1 # strace -e recvmsg ip nexthop get id 101 ... recvmsg(... [{nla_len=12, nla_type=NHA_GROUP}, [{id=1, weight=0, resvd1=0x69, resvd2=0x67}]] ...) = 52 The fields are reserved and therefore not currently used. But as they are, they leak kernel memory, and the fact they are not just zero complicates repurposing of the fields for new ends. Initialize the full structure. | |
| Title | net: nexthop: Initialize all fields in dumped nexthops | |
| References |
|
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-10-15T00:48:13.038Z
Reserved: 2024-07-30T07:40:12.262Z
Link: CVE-2024-42283
Updated: 2025-11-03T22:03:26.190Z
Status : Modified
Published: 2024-08-17T09:15:09.163
Modified: 2026-10-15T01:18:45.570
Link: CVE-2024-42283
OpenCVE Enrichment
No data.
Debian DLA
Ubuntu USN