CVE-2024-46679— ethtool: check device is present when getting link settings
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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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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
II. Public POCs for CVE-2024-46679
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Same Patch Batch · Linux · 2024-09-13 · 40 CVEs total
| CVE-2024-46704 | workqueue: Fix spruious data race in __flush_work() | |
| CVE-2024-46694 | drm/amd/display: avoid using null object of framebuffer | |
| CVE-2024-46696 | nfsd: fix potential UAF in nfsd4_cb_getattr_release | |
| CVE-2024-46695 | selinux,smack: don't bypass permissions check in inode_setsecctx hook | |
| CVE-2024-46698 | video/aperture: optionally match the device in sysfb_disable() | |
| CVE-2024-46697 | nfsd: ensure that nfsd4_fattr_args.context is zeroed out | |
| CVE-2024-46699 | drm/v3d: Disable preemption while updating GPU stats | |
| CVE-2024-46701 | libfs: fix infinite directory reads for offset dir | |
| CVE-2024-46702 | thunderbolt: Mark XDomain as unplugged when router is removed | |
| CVE-2024-46703 | Revert "serial: 8250_omap: Set the console genpd always on if no console suspend" | |
| CVE-2024-46692 | firmware: qcom: scm: Mark get_wq_ctx() as atomic call | |
| CVE-2024-46705 | drm/xe: reset mmio mappings with devm | |
| CVE-2024-46706 | tty: serial: fsl_lpuart: mark last busy before uart_add_one_port | |
| CVE-2024-46707 | KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3 | |
| CVE-2024-46709 | drm/vmwgfx: Fix prime with external buffers | |
| CVE-2024-46708 | pinctrl: qcom: x1e80100: Fix special pin offsets | |
| CVE-2024-46710 | drm/vmwgfx: Prevent unmapping active read buffers | |
| CVE-2024-46711 | mptcp: pm: fix ID 0 endp usage after multiple re-creations | |
| CVE-2024-46712 | drm/vmwgfx: Disable coherent dumb buffers without 3d | |
| CVE-2024-46713 | perf/aux: Fix AUX buffer serialization |
Showing top 20 of 40 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2024-46679
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