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

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ethtool组件在获取链接设置时未能检查设备是否存在。

AI Predicted 5.5 Difficulty: Easy EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux d519e17e2d01a0ee9abe083019532061b4438065< ec7b4f7f644018ac293cb1b02528a40a32917e62 affected
d519e17e2d01a0ee9abe083019532061b4438065< 842a40c7273ba1c1cb30dda50405b328de1d860e affected
d519e17e2d01a0ee9abe083019532061b4438065< 7a8d98b6d6484d3ad358510366022da080c37cbc affected
d519e17e2d01a0ee9abe083019532061b4438065< 9bba5955eed160102114d4cc00c3d399be9bdae4 affected
d519e17e2d01a0ee9abe083019532061b4438065< 94ab317024ba373d37340893d1c0358638935fbb affected
d519e17e2d01a0ee9abe083019532061b4438065< 1d6d9b5b1b95bfeccb84386a51b7e6c510ec13b2 affected
d519e17e2d01a0ee9abe083019532061b4438065< a699781c79ecf6cfe67fb00a0331b4088c7c8466 affected
2.6.33 affected
… +8 more rows
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I. Basic Information for CVE-2024-46679

Vulnerability Information
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Vulnerability Title
ethtool: check device is present when getting link settings
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ethtool组件在获取链接设置时未能检查设备是否存在。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux d519e17e2d01a0ee9abe083019532061b4438065 ~ ec7b4f7f644018ac293cb1b02528a40a32917e62 -
Linux Linux 2.6.33 -

II. Public POCs for CVE-2024-46679

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III. Intelligence Information for CVE-2024-46679

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Patches & Fixes for CVE-2024-46679 (6)

Same Patch Batch · Linux · 2024-09-13 · 40 CVEs total

CVE-2024-46697 9.8 CRITICAL nfsd: ensure that nfsd4_fattr_args.context is zeroed out
CVE-2024-46695 9.8 CRITICAL selinux,smack: don't bypass permissions check in inode_setsecctx hook
CVE-2024-46696 9.8 CRITICAL nfsd: fix potential UAF in nfsd4_cb_getattr_release
CVE-2024-46690 9.8 CRITICAL nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease
CVE-2024-46673 7.8 HIGH scsi: aacraid: Fix double-free on probe failure
CVE-2024-46713 7.8 HIGH perf/aux: Fix AUX buffer serialization
CVE-2024-46710 7.8 HIGH drm/vmwgfx: Prevent unmapping active read buffers
CVE-2024-46709 7.8 HIGH drm/vmwgfx: Fix prime with external buffers
CVE-2024-46705 7.8 HIGH drm/xe: reset mmio mappings with devm
CVE-2024-46687 7.8 HIGH btrfs: fix a use-after-free when hitting errors inside btrfs_submit_chunk()
CVE-2024-46678 7.8 HIGH bonding: change ipsec_lock from spin lock to mutex
CVE-2024-46674 7.8 HIGH usb: dwc3: st: fix probed platform device ref count on probe error path
CVE-2024-46680 7.8 HIGH Bluetooth: btnxpuart: Fix random crash seen while removing driver
CVE-2024-46683 7.8 HIGH drm/xe: prevent UAF around preempt fence
CVE-2024-46701 libfs: fix infinite directory reads for offset dir
CVE-2024-46685 pinctrl: single: fix potential NULL dereference in pcs_get_function()
CVE-2024-46712 drm/vmwgfx: Disable coherent dumb buffers without 3d
CVE-2024-46711 mptcp: pm: fix ID 0 endp usage after multiple re-creations
CVE-2024-46675 usb: dwc3: core: Prevent USB core invalid event buffer address access
CVE-2024-46708 pinctrl: qcom: x1e80100: Fix special pin offsets

Showing top 20 of 40 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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