cve-2024-26830
Vulnerability from cvelistv5
Published
2024-04-17 09:43
Modified
2024-12-19 08:48
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: i40e: Do not allow untrusted VF to remove administratively set MAC Currently when PF administratively sets VF's MAC address and the VF is put down (VF tries to delete all MACs) then the MAC is removed from MAC filters and primary VF MAC is zeroed. Do not allow untrusted VF to remove primary MAC when it was set administratively by PF. Reproducer: 1) Create VF 2) Set VF interface up 3) Administratively set the VF's MAC 4) Put VF interface down [root@host ~]# echo 1 > /sys/class/net/enp2s0f0/device/sriov_numvfs [root@host ~]# ip link set enp2s0f0v0 up [root@host ~]# ip link set enp2s0f0 vf 0 mac fe:6c:b5:da:c7:7d [root@host ~]# ip link show enp2s0f0 23: enp2s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 link/ether 3c:ec:ef:b7:dd:04 brd ff:ff:ff:ff:ff:ff vf 0 link/ether fe:6c:b5:da:c7:7d brd ff:ff:ff:ff:ff:ff, spoof checking on, link-state auto, trust off [root@host ~]# ip link set enp2s0f0v0 down [root@host ~]# ip link show enp2s0f0 23: enp2s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 link/ether 3c:ec:ef:b7:dd:04 brd ff:ff:ff:ff:ff:ff vf 0 link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff, spoof checking on, link-state auto, trust off
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1c981792e4ccbc134b468797acdd7781959e6893
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/73d9629e1c8c1982f13688c4d1019c3994647ccc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be147926140ac48022c9605d7ab0a67387e4b404
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d250a81ba813a93563be68072c563aa1e346346d
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1c981792e4ccbc134b468797acdd7781959e6893
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/73d9629e1c8c1982f13688c4d1019c3994647ccc
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/be147926140ac48022c9605d7ab0a67387e4b404
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d250a81ba813a93563be68072c563aa1e346346d
Impacted products
Vendor Product Version
Linux Linux Version: 3.14
Show details on NVD website

To clipboard 

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}


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