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Fencer Vulns
medium 4.7

CVE-2024-46679 json

ethtool: check device is present when getting link settings

published 2024-09-13 2 y ago modified 2026-10-15 25 d ago also EUVD-2024-41940

cvss
4.7
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

ethtool: check device is present when getting link settings

A sysfs reader can race with a device reset or removal, attempting to read device state when the device is not actually present. eg:

[exception RIP: qed_get_current_link+17] #8 [ffffb9e4f2907c48] qede_get_link_ksettings at ffffffffc07a994a [qede] #9 [ffffb9e4f2907cd8] __rh_call_get_link_ksettings at ffffffff992b01a3 #10 [ffffb9e4f2907d38] __ethtool_get_link_ksettings at ffffffff992b04e4 #11 [ffffb9e4f2907d90] duplex_show at ffffffff99260300 #12 [ffffb9e4f2907e38] dev_attr_show at ffffffff9905a01c #13 [ffffb9e4f2907e50] sysfs_kf_seq_show at ffffffff98e0145b #14 [ffffb9e4f2907e68] seq_read at ffffffff98d902e3 #15 [ffffb9e4f2907ec8] vfs_read at ffffffff98d657d1 #16 [ffffb9e4f2907f00] ksys_read at ffffffff98d65c3f #17 [ffffb9e4f2907f38] do_syscall_64 at ffffffff98a052fb

crash> struct net_device.state ffff9a9d21336000 state = 5,

state 5 is __LINK_STATE_START (0b1) and __LINK_STATE_NOCARRIER (0b100). The device is not present, note lack of __LINK_STATE_PRESENT (0b10).

This is the same sort of panic as observed in commit 4224cfd7fb65 ("net-sysfs: add check for netdevice being present to speed_show").

There are many other callers of __ethtool_get_link_ksettings() which don't have a device presence check.

Move this check into ethtool to protect all callers.

Patch / fix

  • Linux Linux 5.4.283, 5.10.225, 5.15.166, 6.1.108, 6.6.49, 6.10.8, 6.11
  • Siemens RUGGEDCOM RST2428P V3.1, V3.2
  • Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family V3.2
  • Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family V3.1, V3.2
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1.1
  • linux Debian 12 6.1.112-1
  • linux Debian 14, Debian 13 6.10.9-1

debian advisories DEBIAN-CVE-2024-46679

  • linux Ubuntu 20.04 LTS 5.4.0-200.220
  • linux Ubuntu 22.04 LTS 5.15.0-125.135
  • linux Ubuntu 24.04 LTS 6.8.0-50.51
  • linux-aws Ubuntu 20.04 LTS 5.4.0-1135.145
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1072.78
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1020.22
  • linux-gcp Ubuntu 20.04 LTS 5.4.0-1139.148
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1071.79

ubuntu advisories UBUNTU-CVE-2024-46679

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 9 5.14.0-503.15.1.el9_5
  • rv RHEL 9 5.14.0-503.15.1.el9_5
  • perf RHEL 9 5.14.0-503.15.1.el9_5
  • rtla RHEL 9 5.14.0-503.15.1.el9_5
  • bpftool RHEL 9 7.4.0-503.15.1.el9_5
  • libperf RHEL 9 5.14.0-503.15.1.el9_5
  • kernel-rt RHEL 9 5.14.0-503.15.1.el9_5
  • kernel-64k RHEL 9 5.14.0-503.15.1.el9_5

red hat advisories RHSA-2025:23463RHSA-2025:23445RHSA-2025:22124RHSA-2025:22095RHSA-2025:22006RHSA-2025:19886

  • kernel-rt Linux Micro 6.0 6.4.0-11.1
  • kernel-source-rt Linux Micro 6.0 6.4.0-11.1
  • kernel-livepatch-MICRO-6-0-RT_Update_3 Linux Micro 6.0 1-1.2
  • kernel-source Linux Micro 6.0 6.4.0-20.1
  • kernel-default Linux Micro 6.0 6.4.0-20.1
  • kernel-kvmsmall Linux Micro 6.0 6.4.0-20.1
  • kernel-default-base Linux Micro 6.0 6.4.0-17.1.1.51
  • kernel-livepatch-MICRO-6-0_Update_3 Linux Micro 6.0 1-1.2

suse advisories SUSE-SU-2025:20077-1SUSE-SU-2025:20073-1SUSE-SU-2024:3592-1SUSE-SU-2024:3591-1SUSE-SU-2024:3587-1SUSE-SU-2024:3569-1

  • kernel AlmaLinux 8 4.18.0-553.27.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.27.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.27.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.27.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.27.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.27.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.27.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.27.1.el8_10

almalinux advisories ALSA-2024:8856

  • kernel CBL-Mariner 2.0 5.15.167.1-1

azure linux advisories AZL-49570

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-46679 updated cvss 4.7

kernel: ethtool: check device is present when getting link settings

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +6 more
    affected: no fix available
  • Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
    affected: no fix planned “Will not fix”
  • Red Hat CodeReady Linux Builder (v. 9) libperf 5.14.0-503.15.1.el9_5, kernel-debuginfo-common-s390x 5.14.0-503.15.1.el9_5, kernel-debuginfo-common-x86_64 5.14.0-503.15.1.el9_5, kernel-debuginfo-common-aarch64 5.14.0-503.15.1.el9_5, kernel-debuginfo-common-ppc64le 5.14.0-503.15.1.el9_5
    fixed: vendor fix RHSA-2024:10274
  • Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-debuginfo-common-x86_64 4.18.0-477.75.1.el8_8, kernel-debuginfo-common-aarch64 4.18.0-477.75.1.el8_8, kernel-debuginfo-common-ppc64le 4.18.0-477.75.1.el8_8
    fixed: vendor fix RHSA-2024:8107
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.97.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.97.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.97.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.97.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.97.1.el9_4
    fixed: vendor fix RHSA-2025:19886
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-503.15.1.el9_5, perf 5.14.0-503.15.1.el9_5, rtla 5.14.0-503.15.1.el9_5, kernel-devel-matched 5.14.0-503.15.1.el9_5, kernel-64k-devel-matched 5.14.0-503.15.1.el9_5, kernel-debug-devel-matched 5.14.0-503.15.1.el9_5, +6 more
    fixed: vendor fix RHSA-2024:10274
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.148.1.el9_2, rtla 5.14.0-284.148.1.el9_2, kernel-devel-matched 5.14.0-284.148.1.el9_2, kernel-64k-devel-matched 5.14.0-284.148.1.el9_2, kernel-debug-devel-matched 5.14.0-284.148.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.148.1.el9_2, +5 more
    fixed: vendor fix RHSA-2025:22095
show 18 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.97.1.el9_4, perf 5.14.0-427.97.1.el9_4, rtla 5.14.0-427.97.1.el9_4, kernel-devel-matched 5.14.0-427.97.1.el9_4, kernel-64k-devel-matched 5.14.0-427.97.1.el9_4, kernel-debug-devel-matched 5.14.0-427.97.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:19886
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.27.1.el8_10, kernel 4.18.0-553.27.1.el8_10, bpftool 4.18.0-553.27.1.el8_10, kernel-core 4.18.0-553.27.1.el8_10, kernel-tools 4.18.0-553.27.1.el8_10, python3-perf 4.18.0-553.27.1.el8_10, +15 more
    fixed: vendor fix RHSA-2024:8856
  • Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.4.0-503.15.1.el9_5, kernel 5.14.0-503.15.1.el9_5, kernel-64k 5.14.0-503.15.1.el9_5, kernel-core 5.14.0-503.15.1.el9_5, kernel-tools 5.14.0-503.15.1.el9_5, python3-perf 5.14.0-503.15.1.el9_5, +29 more
    fixed: vendor fix RHSA-2024:10274
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.178.1.el8_2, kernel 4.18.0-193.178.1.el8_2, bpftool 4.18.0-193.178.1.el8_2, kernel-core 4.18.0-193.178.1.el8_2, kernel-tools 4.18.0-193.178.1.el8_2, python3-perf 4.18.0-193.178.1.el8_2, +8 more
    fixed: vendor fix RHSA-2025:23445
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.182.1.el8_4, kernel 4.18.0-305.182.1.el8_4, bpftool 4.18.0-305.182.1.el8_4, kernel-core 4.18.0-305.182.1.el8_4, kernel-tools 4.18.0-305.182.1.el8_4, python3-perf 4.18.0-305.182.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:23463
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.170.1.el8_6, kernel 4.18.0-372.170.1.el8_6, bpftool 4.18.0-372.170.1.el8_6, kernel-core 4.18.0-372.170.1.el8_6, kernel-tools 4.18.0-372.170.1.el8_6, python3-perf 4.18.0-372.170.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.170.1.el8_6, kernel 4.18.0-372.170.1.el8_6, bpftool 4.18.0-372.170.1.el8_6, kernel-core 4.18.0-372.170.1.el8_6, kernel-tools 4.18.0-372.170.1.el8_6, python3-perf 4.18.0-372.170.1.el8_6, +15 more
    fixed: vendor fix RHSA-2025:22006
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.148.1.el9_2, kernel 5.14.0-284.148.1.el9_2, kernel-64k 5.14.0-284.148.1.el9_2, kernel-core 5.14.0-284.148.1.el9_2, kernel-tools 5.14.0-284.148.1.el9_2, python3-perf 5.14.0-284.148.1.el9_2, +28 more
    fixed: vendor fix RHSA-2025:22095
  • Red Hat Enterprise Linux BaseOS EUS (v.8.8) perf 4.18.0-477.75.1.el8_8, kernel 4.18.0-477.75.1.el8_8, bpftool 4.18.0-477.75.1.el8_8, kernel-core 4.18.0-477.75.1.el8_8, kernel-tools 4.18.0-477.75.1.el8_8, python3-perf 4.18.0-477.75.1.el8_8, +15 more
    fixed: vendor fix RHSA-2024:8107
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.97.1.el9_4, kernel 5.14.0-427.97.1.el9_4, kernel-64k 5.14.0-427.97.1.el9_4, kernel-core 5.14.0-427.97.1.el9_4, kernel-tools 5.14.0-427.97.1.el9_4, python3-perf 5.14.0-427.97.1.el9_4, +28 more
    fixed: vendor fix RHSA-2025:19886
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.182.1.el8_4, kernel 4.18.0-305.182.1.el8_4, bpftool 4.18.0-305.182.1.el8_4, kernel-core 4.18.0-305.182.1.el8_4, kernel-tools 4.18.0-305.182.1.el8_4, python3-perf 4.18.0-305.182.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:23463
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.170.1.el8_6, kernel 4.18.0-372.170.1.el8_6, bpftool 4.18.0-372.170.1.el8_6, kernel-core 4.18.0-372.170.1.el8_6, kernel-tools 4.18.0-372.170.1.el8_6, python3-perf 4.18.0-372.170.1.el8_6, +8 more
    fixed: vendor fix RHSA-2025:22006
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.27.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.27.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.27.1.el8_10
    fixed: vendor fix RHSA-2024:8856
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-503.15.1.el9_5, kernel-rt-core 5.14.0-503.15.1.el9_5, kernel-rt-modules 5.14.0-503.15.1.el9_5, kernel-rt-debug-core 5.14.0-503.15.1.el9_5, kernel-rt-modules-core 5.14.0-503.15.1.el9_5, kernel-rt-debug-modules 5.14.0-503.15.1.el9_5, +4 more
    fixed: vendor fix RHSA-2024:10274
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-core 5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-modules 5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-debug-core 5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-modules-core 5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-debug-modules 5.14.0-284.148.1.rt14.433.el9_2, +4 more
    fixed: vendor fix RHSA-2025:22124
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.97.1.el9_4, kernel-rt-core 5.14.0-427.97.1.el9_4, kernel-rt-modules 5.14.0-427.97.1.el9_4, kernel-rt-debug-core 5.14.0-427.97.1.el9_4, kernel-rt-modules-core 5.14.0-427.97.1.el9_4, kernel-rt-debug-modules 5.14.0-427.97.1.el9_4, +4 more
    fixed: vendor fix RHSA-2025:19886
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-503.15.1.el9_5, kernel-rt-kvm 5.14.0-503.15.1.el9_5, kernel-rt-core 5.14.0-503.15.1.el9_5, kernel-rt-modules 5.14.0-503.15.1.el9_5, kernel-rt-debug-kvm 5.14.0-503.15.1.el9_5, kernel-rt-debug-core 5.14.0-503.15.1.el9_5, +6 more
    fixed: vendor fix RHSA-2024:10274
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-kvm 5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-core 5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-modules 5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-debug-kvm 5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-debug-core 5.14.0-284.148.1.rt14.433.el9_2, +6 more
    fixed: vendor fix RHSA-2025:22124
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.97.1.el9_4, kernel-rt-kvm 5.14.0-427.97.1.el9_4, kernel-rt-core 5.14.0-427.97.1.el9_4, kernel-rt-modules 5.14.0-427.97.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.97.1.el9_4, kernel-rt-debug-core 5.14.0-427.97.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:19886

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-24-102-01 updated cvss 5.5

Siemens SIMATIC S7-1500 TM MFP

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
    affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-25-226-07 updated cvss 5.5

Siemens Third-Party Components in SINEC OS

  • Siemens RUGGEDCOM RST2428P (6GK6242-6PA00) < 3.2
    affected: fixed in V3.2 support.industry.siemens.com
  • Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family < 3.2
    affected: fixed in V3.2
  • Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family < 3.2
    affected: fixed in V3.2 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-25-226-15 updated cvss 5.5

Siemens SINEC OS

  • Siemens RUGGEDCOM RST2428P (6GK6242-6PA00) < 3.1 Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family < 3.1
    affected: fixed in V3.1 support.industry.siemens.com
  • Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family
    not affected

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Linux Linux
  • Siemens RUGGEDCOM RST2428P
  • Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family
  • Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.