GHSA-FM8P-9649-2GQ7
Vulnerability from github – Published: 2024-11-19 03:31 – Updated: 2026-07-14 15:31In 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
{
"affected": [],
"aliases": [
"CVE-2024-50298"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-19T02:16:31Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: enetc: allocate vf_state during PF probes\n\nIn the previous implementation, vf_state is allocated memory only when VF\nis enabled. However, net_device_ops::ndo_set_vf_mac() may be called before\nVF is enabled to configure the MAC address of VF. If this is the case,\nenetc_pf_set_vf_mac() will access vf_state, resulting in access to a null\npointer. The simplified error log is as follows.\n\nroot@ls1028ardb:~# ip link set eno0 vf 1 mac 00:0c:e7:66:77:89\n[ 173.543315] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004\n[ 173.637254] pc : enetc_pf_set_vf_mac+0x3c/0x80 Message from sy\n[ 173.641973] lr : do_setlink+0x4a8/0xec8\n[ 173.732292] Call trace:\n[ 173.734740] enetc_pf_set_vf_mac+0x3c/0x80\n[ 173.738847] __rtnl_newlink+0x530/0x89c\n[ 173.742692] rtnl_newlink+0x50/0x7c\n[ 173.746189] rtnetlink_rcv_msg+0x128/0x390\n[ 173.750298] netlink_rcv_skb+0x60/0x130\n[ 173.754145] rtnetlink_rcv+0x18/0x24\n[ 173.757731] netlink_unicast+0x318/0x380\n[ 173.761665] netlink_sendmsg+0x17c/0x3c8",
"id": "GHSA-fm8p-9649-2gq7",
"modified": "2026-07-14T15:31:15Z",
"published": "2024-11-19T03:31:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50298"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/35668e29e979b3a1927d3959cdd87327afd8e5eb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7eb923f8d4819737c07d6a8d0daef0a4d7f99e0c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e15c5506dd39885cd047f811a64240e2e8ab401b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ef0edfbe9eeed1fccad7cb705648af5222664944"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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