CVE-2024-26820
Published: April 18, 2024Last modified: April 18, 2024
Description
In the Linux kernel, the following vulnerability has been resolved: hv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed If hv_netvsc driver is unloaded and reloaded, the NET_DEVICE_REGISTER handler cannot perform VF register successfully as the register call is received before netvsc_probe is finished. This is because we register register_netdevice_notifier() very early( even before vmbus_driver_register()). To fix this, we try to register each such matching VF( if it is visible as a netdevice) at the end of netvsc_probe.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.33-r0) |
| Stream | linux-lts | Not affected (6.1.33-r0) |
References
- https://git.kernel.org/stable/c/309ef7de5d840e17607e7d65cbf297c0564433ef
- https://git.kernel.org/stable/c/4d29a58d96a78728cb01ee29ed70dc4bd642f135
- https://git.kernel.org/stable/c/5b10a88f64c0315cfdef45de0aaaa4eef57de0b7
- https://git.kernel.org/stable/c/9cae43da9867412f8bd09aee5c8a8dc5e8dc3dc2
- https://git.kernel.org/stable/c/a71302c8638939c45e4ba5a99ea438185fd3f418
- https://git.kernel.org/stable/c/b6d46f306b3964d05055ddaa96b58cd8bd3a472c
- https://git.kernel.org/stable/c/bcb7164258d0a9a8aa2e73ddccc2d78f67d2519d
- https://git.kernel.org/stable/c/c7441c77c91e47f653104be8353b44a3366a5366
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html