Medium 4.7Published Sep 13, 2024

CVE-2024-46679ethtool: check device is present when getting link settings

Updated under an hour ago (Oct 26, 2026, 1:20 PM ET)

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Exploited in the last 30 days

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.

CVSS: 4.7 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from d519e17e2d01a0ee9abe083019532061b4438065 before ec7b4f7f644018ac293cb1b02528a40a32917e62; from d519e17e2d01a0ee9abe083019532061b4438065 before 842a40c7273ba1c1cb30dda50405b328de1d860e; from d519e17e2d01a0ee9abe083019532061b4438065 before 7a8d98b6d6484d3ad358510366022da080c37cbc; from d519e17e2d01a0ee9abe083019532061b4438065 before 9bba5955eed160102114d4cc00c3d399be9bdae4; from d519e17e2d01a0ee9abe083019532061b4438065 before 94ab317024ba373d37340893d1c0358638935fbb; from d519e17e2d01a0ee9abe083019532061b4438065 before 1d6d9b5b1b95bfeccb84386a51b7e6c510ec13b2; from d519e17e2d01a0ee9abe083019532061b4438065 before a699781c79ecf6cfe67fb00a0331b4088c7c8466	CNA record
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name)	before V3.1	CISA ADP
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family siemens:scalance_xc_300_xr_300_xc_400_xr_500wg_xr_500_family (from the name)	all versions not affected	CISA ADP
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family siemens:scalance_xcm_xrm_xch_xrh_300_family (from the name)	before V3.1	CISA ADP
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)	before V1.1.1	CISA ADP
linux linux_kernel linux:linux_kernel	from 2.6.33 before 5.4.283; from 5.5 before 5.10.225; from 5.11 before 5.15.166; from 5.16 before 6.1.108; from 6.2 before 6.6.49; from 6.7 before 6.10.8; 6.11; 6.11; and 3 more ranges	NVD

References

References

https://git.kernel.org/stable/c/ec7b4f7f644018ac293cb1b02528a40a32917e62	patch
https://git.kernel.org/stable/c/842a40c7273ba1c1cb30dda50405b328de1d860e	patch
https://git.kernel.org/stable/c/7a8d98b6d6484d3ad358510366022da080c37cbc	patch
https://git.kernel.org/stable/c/9bba5955eed160102114d4cc00c3d399be9bdae4	patch
https://git.kernel.org/stable/c/94ab317024ba373d37340893d1c0358638935fbb	patch
https://git.kernel.org/stable/c/1d6d9b5b1b95bfeccb84386a51b7e6c510ec13b2	patch
https://git.kernel.org/stable/c/a699781c79ecf6cfe67fb00a0331b4088c7c8466	patch
https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
https://cert-portal.siemens.com/productcert/html/ssa-265688.html
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.