idpf：避免在 idpf_get_link_ksettings 中进行 vport 访问（CVE-2024-50274）
CVE编号
CVE-2024-50274
利用情况
暂无
补丁情况
N/A
披露时间
2024-11-19
漏洞描述
In the Linux kernel, the following vulnerability has been resolved:
idpf: avoid vport access in idpf_get_link_ksettings
When the device control plane is removed or the platform
running device control plane is rebooted, a reset is detected
on the driver. On driver reset, it releases the resources and
waits for the reset to complete. If the reset fails, it takes
the error path and releases the vport lock. At this time if the
monitoring tools tries to access link settings, it call traces
for accessing released vport pointer.
To avoid it, move link_speed_mbps to netdev_priv structure
which removes the dependency on vport pointer and the vport lock
in idpf_get_link_ksettings. Also use netif_carrier_ok()
to check the link status and adjust the offsetof to use link_up
instead of link_speed_mbps.
解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
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