一、 漏洞 CVE-2024-50298 基础信息
漏洞标题
net：enetc：在PF探测过程中分配vf_state
来源：AIGC 神龙大模型
漏洞描述信息
N/A
来源：AIGC 神龙大模型
CVSS信息
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
来源：AIGC 神龙大模型
漏洞类别
空指针解引用
来源：AIGC 神龙大模型
漏洞标题
net: enetc: allocate vf_state during PF probes
来源：美国国家漏洞数据库 NVD
漏洞描述信息
In the Linux kernel, the following vulnerability has been resolved: net: enetc: allocate vf_state during PF probes In the previous implementation, vf_state is allocated memory only when VF is enabled. However, net_device_ops::ndo_set_vf_mac() may be called before VF is enabled to configure the MAC address of VF. If this is the case, enetc_pf_set_vf_mac() will access vf_state, resulting in access to a null pointer. The simplified error log is as follows. root@ls1028ardb:~# ip link set eno0 vf 1 mac 00:0c:e7:66:77:89 [ 173.543315] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004 [ 173.637254] pc : enetc_pf_set_vf_mac+0x3c/0x80 Message from sy [ 173.641973] lr : do_setlink+0x4a8/0xec8 [ 173.732292] Call trace: [ 173.734740] enetc_pf_set_vf_mac+0x3c/0x80 [ 173.738847] __rtnl_newlink+0x530/0x89c [ 173.742692] rtnl_newlink+0x50/0x7c [ 173.746189] rtnetlink_rcv_msg+0x128/0x390 [ 173.750298] netlink_rcv_skb+0x60/0x130 [ 173.754145] rtnetlink_rcv+0x18/0x24 [ 173.757731] netlink_unicast+0x318/0x380 [ 173.761665] netlink_sendmsg+0x17c/0x3c8
来源：美国国家漏洞数据库 NVD
CVSS信息
N/A
来源：美国国家漏洞数据库 NVD
漏洞类别
N/A
来源：美国国家漏洞数据库 NVD
漏洞标题
Linux kernel 安全漏洞
来源：中国国家信息安全漏洞库 CNNVD
漏洞描述信息
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PF探针期间vf_state分配存在问题。
来源：中国国家信息安全漏洞库 CNNVD
CVSS信息
N/A
来源：中国国家信息安全漏洞库 CNNVD
漏洞类别
其他
来源：中国国家信息安全漏洞库 CNNVD
二、漏洞 CVE-2024-50298 的公开POC
# POC 描述 源链接 神龙链接
三、漏洞 CVE-2024-50298 的情报信息

  • 标题： net: enetc: allocate vf_state during PF probes - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签：

    神龙速读
    net: enetc: allocate vf_state during PF probes - kernel/git/stable/linux.git - Linux kernel stable tree

  • 标题： net: enetc: allocate vf_state during PF probes - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签：

    神龙速读
    net: enetc: allocate vf_state during PF probes - kernel/git/stable/linux.git - Linux kernel stable tree

  • 标题： net: enetc: allocate vf_state during PF probes - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签：

    神龙速读
    net: enetc: allocate vf_state during PF probes - kernel/git/stable/linux.git - Linux kernel stable tree
  • https://nvd.nist.gov/vuln/detail/CVE-2024-50298