UBUNTU-CVE-2024-26830
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
02 / AFFECTED SOFTWARE
Affected packages
9 explicit affected versions
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10 explicit affected versions
37 explicit affected versions
11 explicit affected versions
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30 explicit affected versions
1 explicit affected versions
34 explicit affected versions
26 explicit affected versions
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6 explicit affected versions
1 explicit affected versions
29 explicit affected versions
84 explicit affected versions
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188 explicit affected versions
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35 explicit affected versions
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10 explicit affected versions
26 explicit affected versions
30 explicit affected versions
1 explicit affected versions
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54 explicit affected versions
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26 explicit affected versions
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11 explicit affected versions
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13 explicit affected versions
48 explicit affected versions
7 explicit affected versions
140 explicit affected versions
94 explicit affected versions
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10 explicit affected versions
13 explicit affected versions
12 explicit affected versions
83 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
40 explicit affected versions
37 explicit affected versions
12 explicit affected versions
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167 explicit affected versions
43 explicit affected versions
9 explicit affected versions
43 explicit affected versions
11 explicit affected versions
51 explicit affected versions
8 explicit affected versions
7 explicit affected versions
24 explicit affected versions
97 explicit affected versions
55 explicit affected versions
121 explicit affected versions
4 explicit affected versions
1 explicit affected versions
1 explicit affected versions
49 explicit affected versions
11 explicit affected versions
43 explicit affected versions
49 explicit affected versions
10 explicit affected versions
8 explicit affected versions
14 explicit affected versions
84 explicit affected versions
4 explicit affected versions
73 explicit affected versions
9 explicit affected versions
1 explicit affected versions
69 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/73d9629e1c8c1982f13688c4d1019c3994647ccc
- https://git.kernel.org/stable/c/1c981792e4ccbc134b468797acdd7781959e6893
- https://git.kernel.org/stable/c/73d9629e1c8c1982f13688c4d1019c3994647ccc
- https://git.kernel.org/stable/c/be147926140ac48022c9605d7ab0a67387e4b404
- https://git.kernel.org/stable/c/d250a81ba813a93563be68072c563aa1e346346d
- https://ubuntu.com/security/CVE-2024-26830
- https://ubuntu.com/security/notices/USN-6895-1
- https://ubuntu.com/security/notices/USN-6895-2
- https://ubuntu.com/security/notices/USN-6895-3
- https://ubuntu.com/security/notices/USN-6895-4
- https://ubuntu.com/security/notices/USN-6900-1
- https://ubuntu.com/security/notices/USN-6973-1
- https://ubuntu.com/security/notices/USN-6973-2
- https://ubuntu.com/security/notices/USN-6973-3
- https://ubuntu.com/security/notices/USN-6973-4
- https://ubuntu.com/security/notices/USN-6974-1
- https://ubuntu.com/security/notices/USN-6974-2
- https://ubuntu.com/security/notices/USN-7006-1
- https://ubuntu.com/security/notices/USN-7019-1
- https://www.cve.org/CVERecord?id=CVE-2024-26830